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1 | 5290-5293 | 21)
where n is the frequency of revolution of the generator’s coil Note that Eq (6 20) and (6 |
1 | 5291-5294 | Note that Eq (6 20) and (6 21) give the instantaneous value of the emf
and e varies between +e0 and –e0 periodically |
1 | 5292-5295 | (6 20) and (6 21) give the instantaneous value of the emf
and e varies between +e0 and –e0 periodically We shall learn how to
determine the time-averaged value for the alternating voltage and current
in the next chapter |
1 | 5293-5296 | 20) and (6 21) give the instantaneous value of the emf
and e varies between +e0 and –e0 periodically We shall learn how to
determine the time-averaged value for the alternating voltage and current
in the next chapter In commercial generators, the mechanical energy required for
rotation of the armature is provided by water falling from a height, for
example, from dams |
1 | 5294-5297 | 21) give the instantaneous value of the emf
and e varies between +e0 and –e0 periodically We shall learn how to
determine the time-averaged value for the alternating voltage and current
in the next chapter In commercial generators, the mechanical energy required for
rotation of the armature is provided by water falling from a height, for
example, from dams These are called hydro-electric generators |
1 | 5295-5298 | We shall learn how to
determine the time-averaged value for the alternating voltage and current
in the next chapter In commercial generators, the mechanical energy required for
rotation of the armature is provided by water falling from a height, for
example, from dams These are called hydro-electric generators Alternatively, water is heated to produce steam using coal or other
sources |
1 | 5296-5299 | In commercial generators, the mechanical energy required for
rotation of the armature is provided by water falling from a height, for
example, from dams These are called hydro-electric generators Alternatively, water is heated to produce steam using coal or other
sources The steam at high pressure produces the rotation of the
armature |
1 | 5297-5300 | These are called hydro-electric generators Alternatively, water is heated to produce steam using coal or other
sources The steam at high pressure produces the rotation of the
armature These are called thermal generators |
1 | 5298-5301 | Alternatively, water is heated to produce steam using coal or other
sources The steam at high pressure produces the rotation of the
armature These are called thermal generators Instead of coal, if a
nuclear fuel is used, we get nuclear power generators |
1 | 5299-5302 | The steam at high pressure produces the rotation of the
armature These are called thermal generators Instead of coal, if a
nuclear fuel is used, we get nuclear power generators Modern day
generators produce electric power as high as 500 MW, i |
1 | 5300-5303 | These are called thermal generators Instead of coal, if a
nuclear fuel is used, we get nuclear power generators Modern day
generators produce electric power as high as 500 MW, i e |
1 | 5301-5304 | Instead of coal, if a
nuclear fuel is used, we get nuclear power generators Modern day
generators produce electric power as high as 500 MW, i e , one can light
Rationalised 2023-24
Physics
172
EXAMPLE 6 |
1 | 5302-5305 | Modern day
generators produce electric power as high as 500 MW, i e , one can light
Rationalised 2023-24
Physics
172
EXAMPLE 6 10
Example 6 |
1 | 5303-5306 | e , one can light
Rationalised 2023-24
Physics
172
EXAMPLE 6 10
Example 6 10 Kamla peddles a stationary bicycle |
1 | 5304-5307 | , one can light
Rationalised 2023-24
Physics
172
EXAMPLE 6 10
Example 6 10 Kamla peddles a stationary bicycle The pedals of the
bicycle are attached to a 100 turn coil of area 0 |
1 | 5305-5308 | 10
Example 6 10 Kamla peddles a stationary bicycle The pedals of the
bicycle are attached to a 100 turn coil of area 0 10 m2 |
1 | 5306-5309 | 10 Kamla peddles a stationary bicycle The pedals of the
bicycle are attached to a 100 turn coil of area 0 10 m2 The coil rotates
at half a revolution per second and it is placed in a uniform magnetic
field of 0 |
1 | 5307-5310 | The pedals of the
bicycle are attached to a 100 turn coil of area 0 10 m2 The coil rotates
at half a revolution per second and it is placed in a uniform magnetic
field of 0 01 T perpendicular to the axis of rotation of the coil |
1 | 5308-5311 | 10 m2 The coil rotates
at half a revolution per second and it is placed in a uniform magnetic
field of 0 01 T perpendicular to the axis of rotation of the coil What is
the maximum voltage generated in the coil |
1 | 5309-5312 | The coil rotates
at half a revolution per second and it is placed in a uniform magnetic
field of 0 01 T perpendicular to the axis of rotation of the coil What is
the maximum voltage generated in the coil Solution Here n = 0 |
1 | 5310-5313 | 01 T perpendicular to the axis of rotation of the coil What is
the maximum voltage generated in the coil Solution Here n = 0 5 Hz; N =100, A = 0 |
1 | 5311-5314 | What is
the maximum voltage generated in the coil Solution Here n = 0 5 Hz; N =100, A = 0 1 m2 and B = 0 |
1 | 5312-5315 | Solution Here n = 0 5 Hz; N =100, A = 0 1 m2 and B = 0 01 T |
1 | 5313-5316 | 5 Hz; N =100, A = 0 1 m2 and B = 0 01 T Employing
Eq |
1 | 5314-5317 | 1 m2 and B = 0 01 T Employing
Eq (6 |
1 | 5315-5318 | 01 T Employing
Eq (6 19)
e0 = NBA (2 p n)
= 100 × 0 |
1 | 5316-5319 | Employing
Eq (6 19)
e0 = NBA (2 p n)
= 100 × 0 01 × 0 |
1 | 5317-5320 | (6 19)
e0 = NBA (2 p n)
= 100 × 0 01 × 0 1 × 2 × 3 |
1 | 5318-5321 | 19)
e0 = NBA (2 p n)
= 100 × 0 01 × 0 1 × 2 × 3 14 × 0 |
1 | 5319-5322 | 01 × 0 1 × 2 × 3 14 × 0 5
= 0 |
1 | 5320-5323 | 1 × 2 × 3 14 × 0 5
= 0 314 V
The maximum voltage is 0 |
1 | 5321-5324 | 14 × 0 5
= 0 314 V
The maximum voltage is 0 314 V |
1 | 5322-5325 | 5
= 0 314 V
The maximum voltage is 0 314 V We urge you to explore such alternative possibilities for power
generation |
1 | 5323-5326 | 314 V
The maximum voltage is 0 314 V We urge you to explore such alternative possibilities for power
generation FIGURE 6 |
1 | 5324-5327 | 314 V We urge you to explore such alternative possibilities for power
generation FIGURE 6 14 An alternating emf is generated by a loop of wire rotating in a magnetic field |
1 | 5325-5328 | We urge you to explore such alternative possibilities for power
generation FIGURE 6 14 An alternating emf is generated by a loop of wire rotating in a magnetic field up 5 million 100 W bulbs |
1 | 5326-5329 | FIGURE 6 14 An alternating emf is generated by a loop of wire rotating in a magnetic field up 5 million 100 W bulbs In most generators, the coils are held
stationary and it is the electromagnets which are rotated |
1 | 5327-5330 | 14 An alternating emf is generated by a loop of wire rotating in a magnetic field up 5 million 100 W bulbs In most generators, the coils are held
stationary and it is the electromagnets which are rotated The frequency
of rotation is 50 Hz in India |
1 | 5328-5331 | up 5 million 100 W bulbs In most generators, the coils are held
stationary and it is the electromagnets which are rotated The frequency
of rotation is 50 Hz in India In certain countries such as USA, it is
60 Hz |
1 | 5329-5332 | In most generators, the coils are held
stationary and it is the electromagnets which are rotated The frequency
of rotation is 50 Hz in India In certain countries such as USA, it is
60 Hz Rationalised 2023-24
Electromagnetic
Induction
173
SUMMARY
1 |
1 | 5330-5333 | The frequency
of rotation is 50 Hz in India In certain countries such as USA, it is
60 Hz Rationalised 2023-24
Electromagnetic
Induction
173
SUMMARY
1 The magnetic flux through a surface of area A placed in a uniform magnetic
field B is defined as,
FB = B |
1 | 5331-5334 | In certain countries such as USA, it is
60 Hz Rationalised 2023-24
Electromagnetic
Induction
173
SUMMARY
1 The magnetic flux through a surface of area A placed in a uniform magnetic
field B is defined as,
FB = B A = BA cos q
where q is the angle between B and A |
1 | 5332-5335 | Rationalised 2023-24
Electromagnetic
Induction
173
SUMMARY
1 The magnetic flux through a surface of area A placed in a uniform magnetic
field B is defined as,
FB = B A = BA cos q
where q is the angle between B and A 2 |
1 | 5333-5336 | The magnetic flux through a surface of area A placed in a uniform magnetic
field B is defined as,
FB = B A = BA cos q
where q is the angle between B and A 2 Faraday’s laws of induction imply that the emf induced in a coil of N
turns is directly related to the rate of change of flux through it,
dB
Nd
Φt
ε = −
Here FB is the flux linked with one turn of the coil |
1 | 5334-5337 | A = BA cos q
where q is the angle between B and A 2 Faraday’s laws of induction imply that the emf induced in a coil of N
turns is directly related to the rate of change of flux through it,
dB
Nd
Φt
ε = −
Here FB is the flux linked with one turn of the coil If the circuit is
closed, a current I = e/R is set up in it, where R is the resistance of the
circuit |
1 | 5335-5338 | 2 Faraday’s laws of induction imply that the emf induced in a coil of N
turns is directly related to the rate of change of flux through it,
dB
Nd
Φt
ε = −
Here FB is the flux linked with one turn of the coil If the circuit is
closed, a current I = e/R is set up in it, where R is the resistance of the
circuit 3 |
1 | 5336-5339 | Faraday’s laws of induction imply that the emf induced in a coil of N
turns is directly related to the rate of change of flux through it,
dB
Nd
Φt
ε = −
Here FB is the flux linked with one turn of the coil If the circuit is
closed, a current I = e/R is set up in it, where R is the resistance of the
circuit 3 Lenz’s law states that the polarity of the induced emf is such that it
tends to produce a current which opposes the change in magnetic flux
that produces it |
1 | 5337-5340 | If the circuit is
closed, a current I = e/R is set up in it, where R is the resistance of the
circuit 3 Lenz’s law states that the polarity of the induced emf is such that it
tends to produce a current which opposes the change in magnetic flux
that produces it The negative sign in the expression for Faraday’s law
indicates this fact |
1 | 5338-5341 | 3 Lenz’s law states that the polarity of the induced emf is such that it
tends to produce a current which opposes the change in magnetic flux
that produces it The negative sign in the expression for Faraday’s law
indicates this fact 4 |
1 | 5339-5342 | Lenz’s law states that the polarity of the induced emf is such that it
tends to produce a current which opposes the change in magnetic flux
that produces it The negative sign in the expression for Faraday’s law
indicates this fact 4 When a metal rod of length l is placed normal to a uniform magnetic
field B and moved with a velocity v perpendicular to the field, the
induced emf (called motional emf) across its ends is
e = Bl v
5 |
1 | 5340-5343 | The negative sign in the expression for Faraday’s law
indicates this fact 4 When a metal rod of length l is placed normal to a uniform magnetic
field B and moved with a velocity v perpendicular to the field, the
induced emf (called motional emf) across its ends is
e = Bl v
5 Inductance is the ratio of the flux-linkage to current |
1 | 5341-5344 | 4 When a metal rod of length l is placed normal to a uniform magnetic
field B and moved with a velocity v perpendicular to the field, the
induced emf (called motional emf) across its ends is
e = Bl v
5 Inductance is the ratio of the flux-linkage to current It is equal to NF/I |
1 | 5342-5345 | When a metal rod of length l is placed normal to a uniform magnetic
field B and moved with a velocity v perpendicular to the field, the
induced emf (called motional emf) across its ends is
e = Bl v
5 Inductance is the ratio of the flux-linkage to current It is equal to NF/I 6 |
1 | 5343-5346 | Inductance is the ratio of the flux-linkage to current It is equal to NF/I 6 A changing current in a coil (coil 2) can induce an emf in a nearby coil
(coil 1) |
1 | 5344-5347 | It is equal to NF/I 6 A changing current in a coil (coil 2) can induce an emf in a nearby coil
(coil 1) This relation is given by,
2
1
12
d
Id
M
t
ε = −
The quantity M12 is called mutual inductance of coil 1 with respect to
coil 2 |
1 | 5345-5348 | 6 A changing current in a coil (coil 2) can induce an emf in a nearby coil
(coil 1) This relation is given by,
2
1
12
d
Id
M
t
ε = −
The quantity M12 is called mutual inductance of coil 1 with respect to
coil 2 One can similarly define M21 |
1 | 5346-5349 | A changing current in a coil (coil 2) can induce an emf in a nearby coil
(coil 1) This relation is given by,
2
1
12
d
Id
M
t
ε = −
The quantity M12 is called mutual inductance of coil 1 with respect to
coil 2 One can similarly define M21 There exists a general equality,
M12 = M21
7 |
1 | 5347-5350 | This relation is given by,
2
1
12
d
Id
M
t
ε = −
The quantity M12 is called mutual inductance of coil 1 with respect to
coil 2 One can similarly define M21 There exists a general equality,
M12 = M21
7 When a current in a coil changes, it induces a back emf in the same
coil |
1 | 5348-5351 | One can similarly define M21 There exists a general equality,
M12 = M21
7 When a current in a coil changes, it induces a back emf in the same
coil The self-induced emf is given by,
d
d
I
L
t
ε = −
L is the self-inductance of the coil |
1 | 5349-5352 | There exists a general equality,
M12 = M21
7 When a current in a coil changes, it induces a back emf in the same
coil The self-induced emf is given by,
d
d
I
L
t
ε = −
L is the self-inductance of the coil It is a measure of the inertia of the
coil against the change of current through it |
1 | 5350-5353 | When a current in a coil changes, it induces a back emf in the same
coil The self-induced emf is given by,
d
d
I
L
t
ε = −
L is the self-inductance of the coil It is a measure of the inertia of the
coil against the change of current through it 8 |
1 | 5351-5354 | The self-induced emf is given by,
d
d
I
L
t
ε = −
L is the self-inductance of the coil It is a measure of the inertia of the
coil against the change of current through it 8 The self-inductance of a long solenoid, the core of which consists of a
magnetic material of relative permeability mr, is given by
L = mr m0 n2 Al
where A is the area of cross-section of the solenoid, l its length and n
the number of turns per unit length |
1 | 5352-5355 | It is a measure of the inertia of the
coil against the change of current through it 8 The self-inductance of a long solenoid, the core of which consists of a
magnetic material of relative permeability mr, is given by
L = mr m0 n2 Al
where A is the area of cross-section of the solenoid, l its length and n
the number of turns per unit length 9 |
1 | 5353-5356 | 8 The self-inductance of a long solenoid, the core of which consists of a
magnetic material of relative permeability mr, is given by
L = mr m0 n2 Al
where A is the area of cross-section of the solenoid, l its length and n
the number of turns per unit length 9 In an ac generator, mechanical energy is converted to electrical energy
by virtue of electromagnetic induction |
1 | 5354-5357 | The self-inductance of a long solenoid, the core of which consists of a
magnetic material of relative permeability mr, is given by
L = mr m0 n2 Al
where A is the area of cross-section of the solenoid, l its length and n
the number of turns per unit length 9 In an ac generator, mechanical energy is converted to electrical energy
by virtue of electromagnetic induction If coil of N turn and area A is
rotated at n revolutions per second in a uniform magnetic field B, then
the motional emf produced is
e = NBA (2pn) sin (2pnt)
where we have assumed that at time t = 0 s, the coil is perpendicular to
the field |
1 | 5355-5358 | 9 In an ac generator, mechanical energy is converted to electrical energy
by virtue of electromagnetic induction If coil of N turn and area A is
rotated at n revolutions per second in a uniform magnetic field B, then
the motional emf produced is
e = NBA (2pn) sin (2pnt)
where we have assumed that at time t = 0 s, the coil is perpendicular to
the field Rationalised 2023-24
Physics
174
POINTS TO PONDER
1 |
1 | 5356-5359 | In an ac generator, mechanical energy is converted to electrical energy
by virtue of electromagnetic induction If coil of N turn and area A is
rotated at n revolutions per second in a uniform magnetic field B, then
the motional emf produced is
e = NBA (2pn) sin (2pnt)
where we have assumed that at time t = 0 s, the coil is perpendicular to
the field Rationalised 2023-24
Physics
174
POINTS TO PONDER
1 Electricity and magnetism are intimately related |
1 | 5357-5360 | If coil of N turn and area A is
rotated at n revolutions per second in a uniform magnetic field B, then
the motional emf produced is
e = NBA (2pn) sin (2pnt)
where we have assumed that at time t = 0 s, the coil is perpendicular to
the field Rationalised 2023-24
Physics
174
POINTS TO PONDER
1 Electricity and magnetism are intimately related In the early part of the
nineteenth century, the experiments of Oersted, Ampere and others
established that moving charges (currents) produce a magnetic field |
1 | 5358-5361 | Rationalised 2023-24
Physics
174
POINTS TO PONDER
1 Electricity and magnetism are intimately related In the early part of the
nineteenth century, the experiments of Oersted, Ampere and others
established that moving charges (currents) produce a magnetic field Somewhat later, around 1830, the experiments of Faraday and Henry
demonstrated that a moving magnet can induce electric current |
1 | 5359-5362 | Electricity and magnetism are intimately related In the early part of the
nineteenth century, the experiments of Oersted, Ampere and others
established that moving charges (currents) produce a magnetic field Somewhat later, around 1830, the experiments of Faraday and Henry
demonstrated that a moving magnet can induce electric current 2 |
1 | 5360-5363 | In the early part of the
nineteenth century, the experiments of Oersted, Ampere and others
established that moving charges (currents) produce a magnetic field Somewhat later, around 1830, the experiments of Faraday and Henry
demonstrated that a moving magnet can induce electric current 2 In a closed circuit, electric currents are induced so as to oppose the
changing magnetic flux |
1 | 5361-5364 | Somewhat later, around 1830, the experiments of Faraday and Henry
demonstrated that a moving magnet can induce electric current 2 In a closed circuit, electric currents are induced so as to oppose the
changing magnetic flux It is as per the law of conservation of energy |
1 | 5362-5365 | 2 In a closed circuit, electric currents are induced so as to oppose the
changing magnetic flux It is as per the law of conservation of energy However, in case of an open circuit, an emf is induced across its ends |
1 | 5363-5366 | In a closed circuit, electric currents are induced so as to oppose the
changing magnetic flux It is as per the law of conservation of energy However, in case of an open circuit, an emf is induced across its ends How is it related to the flux change |
1 | 5364-5367 | It is as per the law of conservation of energy However, in case of an open circuit, an emf is induced across its ends How is it related to the flux change 3 |
1 | 5365-5368 | However, in case of an open circuit, an emf is induced across its ends How is it related to the flux change 3 The motional emf discussed in Section 6 |
1 | 5366-5369 | How is it related to the flux change 3 The motional emf discussed in Section 6 5 can be argued independently
from Faraday’s law using the Lorentz force on moving charges |
1 | 5367-5370 | 3 The motional emf discussed in Section 6 5 can be argued independently
from Faraday’s law using the Lorentz force on moving charges However,
even if the charges are stationary [and the q (v × B) term of the Lorentz
force is not operative], an emf is nevertheless induced in the presence of a
time-varying magnetic field |
1 | 5368-5371 | The motional emf discussed in Section 6 5 can be argued independently
from Faraday’s law using the Lorentz force on moving charges However,
even if the charges are stationary [and the q (v × B) term of the Lorentz
force is not operative], an emf is nevertheless induced in the presence of a
time-varying magnetic field Thus, moving charges in static field and static
charges in a time-varying field seem to be symmetric situation for Faraday’s
law |
1 | 5369-5372 | 5 can be argued independently
from Faraday’s law using the Lorentz force on moving charges However,
even if the charges are stationary [and the q (v × B) term of the Lorentz
force is not operative], an emf is nevertheless induced in the presence of a
time-varying magnetic field Thus, moving charges in static field and static
charges in a time-varying field seem to be symmetric situation for Faraday’s
law This gives a tantalising hint on the relevance of the principle of
relativity for Faraday’s law |
1 | 5370-5373 | However,
even if the charges are stationary [and the q (v × B) term of the Lorentz
force is not operative], an emf is nevertheless induced in the presence of a
time-varying magnetic field Thus, moving charges in static field and static
charges in a time-varying field seem to be symmetric situation for Faraday’s
law This gives a tantalising hint on the relevance of the principle of
relativity for Faraday’s law EXERCISES
6 |
1 | 5371-5374 | Thus, moving charges in static field and static
charges in a time-varying field seem to be symmetric situation for Faraday’s
law This gives a tantalising hint on the relevance of the principle of
relativity for Faraday’s law EXERCISES
6 1
Predict the direction of induced current in the situations described
by the following Figs |
1 | 5372-5375 | This gives a tantalising hint on the relevance of the principle of
relativity for Faraday’s law EXERCISES
6 1
Predict the direction of induced current in the situations described
by the following Figs 6 |
1 | 5373-5376 | EXERCISES
6 1
Predict the direction of induced current in the situations described
by the following Figs 6 15(a) to (f ) |
1 | 5374-5377 | 1
Predict the direction of induced current in the situations described
by the following Figs 6 15(a) to (f ) Quantity
Symbol
Units
Dimensions
Equations
Magnetic Flux
FB
Wb (weber)
[M L2 T –2 A–1]
FB = B
A
i
EMF
e
V (volt)
[M L2 T –3 A–1]
e =
B
d(
)/d
N
t
Φ
−
Mutual Inductance
M
H (henry)
[M L2 T –2 A–2]
e1
(
)
12
d2
/d
M
I
t
= −
Self Inductance
L
H (henry)
[M L2 T –2 A–2]
(
Ld /d)
I
t
ε = −
Rationalised 2023-24
Electromagnetic
Induction
175
FIGURE 6 |
1 | 5375-5378 | 6 15(a) to (f ) Quantity
Symbol
Units
Dimensions
Equations
Magnetic Flux
FB
Wb (weber)
[M L2 T –2 A–1]
FB = B
A
i
EMF
e
V (volt)
[M L2 T –3 A–1]
e =
B
d(
)/d
N
t
Φ
−
Mutual Inductance
M
H (henry)
[M L2 T –2 A–2]
e1
(
)
12
d2
/d
M
I
t
= −
Self Inductance
L
H (henry)
[M L2 T –2 A–2]
(
Ld /d)
I
t
ε = −
Rationalised 2023-24
Electromagnetic
Induction
175
FIGURE 6 15
6 |
1 | 5376-5379 | 15(a) to (f ) Quantity
Symbol
Units
Dimensions
Equations
Magnetic Flux
FB
Wb (weber)
[M L2 T –2 A–1]
FB = B
A
i
EMF
e
V (volt)
[M L2 T –3 A–1]
e =
B
d(
)/d
N
t
Φ
−
Mutual Inductance
M
H (henry)
[M L2 T –2 A–2]
e1
(
)
12
d2
/d
M
I
t
= −
Self Inductance
L
H (henry)
[M L2 T –2 A–2]
(
Ld /d)
I
t
ε = −
Rationalised 2023-24
Electromagnetic
Induction
175
FIGURE 6 15
6 2
Use Lenz’s law to determine the direction of induced current in the
situations described by Fig |
1 | 5377-5380 | Quantity
Symbol
Units
Dimensions
Equations
Magnetic Flux
FB
Wb (weber)
[M L2 T –2 A–1]
FB = B
A
i
EMF
e
V (volt)
[M L2 T –3 A–1]
e =
B
d(
)/d
N
t
Φ
−
Mutual Inductance
M
H (henry)
[M L2 T –2 A–2]
e1
(
)
12
d2
/d
M
I
t
= −
Self Inductance
L
H (henry)
[M L2 T –2 A–2]
(
Ld /d)
I
t
ε = −
Rationalised 2023-24
Electromagnetic
Induction
175
FIGURE 6 15
6 2
Use Lenz’s law to determine the direction of induced current in the
situations described by Fig 6 |
1 | 5378-5381 | 15
6 2
Use Lenz’s law to determine the direction of induced current in the
situations described by Fig 6 16:
(a) A wire of irregular shape turning into a circular shape;
Rationalised 2023-24
Physics
176
(b) A circular loop being deformed into a narrow straight wire |
1 | 5379-5382 | 2
Use Lenz’s law to determine the direction of induced current in the
situations described by Fig 6 16:
(a) A wire of irregular shape turning into a circular shape;
Rationalised 2023-24
Physics
176
(b) A circular loop being deformed into a narrow straight wire FIGURE 6 |
1 | 5380-5383 | 6 16:
(a) A wire of irregular shape turning into a circular shape;
Rationalised 2023-24
Physics
176
(b) A circular loop being deformed into a narrow straight wire FIGURE 6 16
6 |
1 | 5381-5384 | 16:
(a) A wire of irregular shape turning into a circular shape;
Rationalised 2023-24
Physics
176
(b) A circular loop being deformed into a narrow straight wire FIGURE 6 16
6 3
A long solenoid with 15 turns per cm has a small loop of area 2 |
1 | 5382-5385 | FIGURE 6 16
6 3
A long solenoid with 15 turns per cm has a small loop of area 2 0 cm2
placed inside the solenoid normal to its axis |
1 | 5383-5386 | 16
6 3
A long solenoid with 15 turns per cm has a small loop of area 2 0 cm2
placed inside the solenoid normal to its axis If the current carried
by the solenoid changes steadily from 2 |
1 | 5384-5387 | 3
A long solenoid with 15 turns per cm has a small loop of area 2 0 cm2
placed inside the solenoid normal to its axis If the current carried
by the solenoid changes steadily from 2 0 A to 4 |
1 | 5385-5388 | 0 cm2
placed inside the solenoid normal to its axis If the current carried
by the solenoid changes steadily from 2 0 A to 4 0 A in 0 |
1 | 5386-5389 | If the current carried
by the solenoid changes steadily from 2 0 A to 4 0 A in 0 1 s, what is
the induced emf in the loop while the current is changing |
1 | 5387-5390 | 0 A to 4 0 A in 0 1 s, what is
the induced emf in the loop while the current is changing 6 |
1 | 5388-5391 | 0 A in 0 1 s, what is
the induced emf in the loop while the current is changing 6 4
A rectangular wire loop of sides 8 cm and 2 cm with a small cut is
moving out of a region of uniform magnetic field of magnitude 0 |
1 | 5389-5392 | 1 s, what is
the induced emf in the loop while the current is changing 6 4
A rectangular wire loop of sides 8 cm and 2 cm with a small cut is
moving out of a region of uniform magnetic field of magnitude 0 3 T
directed normal to the loop |
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