Miscellaneous Problems on Electromagnetic Induction
PHXII06:ELECTROMAGNETIC INDUCTION

358593 Assertion :
The coil in the resistance boxes are made by doubling the wire.
Reason :
Only thick wires are to be in any resistance box.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358594 A system \(S\) consists of two coils \(A\) and \(B\). The coil \(A\) carries a steady current \(I\). While the coil \(B\) is suspended nearly as shown in figure. Now, if the system is heated, so as to raise the temperature of two coils steadily, then
supporting img

1 The two coils shows attraction
2 The two coils shows repulsion
3 There is no change in the position of the two coils
4 Induced current are not possible in coil \(B\)
PHXII06:ELECTROMAGNETIC INDUCTION

358595 Assertion :
In electric circuits, wires carrying currents in opposite directions are often twisted together.
Reason :
If the wires are not twisted together, the combination of wires forms a current loop. The magnetic field generated by the loop might affect adjacent circuits or components.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358596 Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction)

1 Both will reach the earth's surface simultaneously.
2 Insulating ball will reach the earth's surface earlier than the metal ball
3 Metal ball will reach the earth's surface earlier than the insulating ball
4 Time taken by them to reach the earth's surface will be independent of the properties of their materials
PHXII06:ELECTROMAGNETIC INDUCTION

358597 In the figure as shown, a conducting wire \({P Q}\) of length \(1\,m\) is moving in a uniform magnetic field \({B=3 {~T}}\) with constant velocity \({v=2 {~m} / {sec}}\) towards right. Given, \(R = 2\,\Omega \), \({C=1 {~F}}\) and \(L = 2\,H\). The current through resistance, capacitor and inductor at any time \({t}\) are \({I_{1}, I_{2}}\) and \({I_{3}}\) respectively. The value of \({I_3}\) at time \(t = 2\,\sec \) is
supporting img

1 \(3\,A\)
2 \(9\,A\)
3 \(5\,A\)
4 \(6\,A\)
PHXII06:ELECTROMAGNETIC INDUCTION

358593 Assertion :
The coil in the resistance boxes are made by doubling the wire.
Reason :
Only thick wires are to be in any resistance box.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358594 A system \(S\) consists of two coils \(A\) and \(B\). The coil \(A\) carries a steady current \(I\). While the coil \(B\) is suspended nearly as shown in figure. Now, if the system is heated, so as to raise the temperature of two coils steadily, then
supporting img

1 The two coils shows attraction
2 The two coils shows repulsion
3 There is no change in the position of the two coils
4 Induced current are not possible in coil \(B\)
PHXII06:ELECTROMAGNETIC INDUCTION

358595 Assertion :
In electric circuits, wires carrying currents in opposite directions are often twisted together.
Reason :
If the wires are not twisted together, the combination of wires forms a current loop. The magnetic field generated by the loop might affect adjacent circuits or components.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358596 Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction)

1 Both will reach the earth's surface simultaneously.
2 Insulating ball will reach the earth's surface earlier than the metal ball
3 Metal ball will reach the earth's surface earlier than the insulating ball
4 Time taken by them to reach the earth's surface will be independent of the properties of their materials
PHXII06:ELECTROMAGNETIC INDUCTION

358597 In the figure as shown, a conducting wire \({P Q}\) of length \(1\,m\) is moving in a uniform magnetic field \({B=3 {~T}}\) with constant velocity \({v=2 {~m} / {sec}}\) towards right. Given, \(R = 2\,\Omega \), \({C=1 {~F}}\) and \(L = 2\,H\). The current through resistance, capacitor and inductor at any time \({t}\) are \({I_{1}, I_{2}}\) and \({I_{3}}\) respectively. The value of \({I_3}\) at time \(t = 2\,\sec \) is
supporting img

1 \(3\,A\)
2 \(9\,A\)
3 \(5\,A\)
4 \(6\,A\)
PHXII06:ELECTROMAGNETIC INDUCTION

358593 Assertion :
The coil in the resistance boxes are made by doubling the wire.
Reason :
Only thick wires are to be in any resistance box.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358594 A system \(S\) consists of two coils \(A\) and \(B\). The coil \(A\) carries a steady current \(I\). While the coil \(B\) is suspended nearly as shown in figure. Now, if the system is heated, so as to raise the temperature of two coils steadily, then
supporting img

1 The two coils shows attraction
2 The two coils shows repulsion
3 There is no change in the position of the two coils
4 Induced current are not possible in coil \(B\)
PHXII06:ELECTROMAGNETIC INDUCTION

358595 Assertion :
In electric circuits, wires carrying currents in opposite directions are often twisted together.
Reason :
If the wires are not twisted together, the combination of wires forms a current loop. The magnetic field generated by the loop might affect adjacent circuits or components.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358596 Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction)

1 Both will reach the earth's surface simultaneously.
2 Insulating ball will reach the earth's surface earlier than the metal ball
3 Metal ball will reach the earth's surface earlier than the insulating ball
4 Time taken by them to reach the earth's surface will be independent of the properties of their materials
PHXII06:ELECTROMAGNETIC INDUCTION

358597 In the figure as shown, a conducting wire \({P Q}\) of length \(1\,m\) is moving in a uniform magnetic field \({B=3 {~T}}\) with constant velocity \({v=2 {~m} / {sec}}\) towards right. Given, \(R = 2\,\Omega \), \({C=1 {~F}}\) and \(L = 2\,H\). The current through resistance, capacitor and inductor at any time \({t}\) are \({I_{1}, I_{2}}\) and \({I_{3}}\) respectively. The value of \({I_3}\) at time \(t = 2\,\sec \) is
supporting img

1 \(3\,A\)
2 \(9\,A\)
3 \(5\,A\)
4 \(6\,A\)
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PHXII06:ELECTROMAGNETIC INDUCTION

358593 Assertion :
The coil in the resistance boxes are made by doubling the wire.
Reason :
Only thick wires are to be in any resistance box.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358594 A system \(S\) consists of two coils \(A\) and \(B\). The coil \(A\) carries a steady current \(I\). While the coil \(B\) is suspended nearly as shown in figure. Now, if the system is heated, so as to raise the temperature of two coils steadily, then
supporting img

1 The two coils shows attraction
2 The two coils shows repulsion
3 There is no change in the position of the two coils
4 Induced current are not possible in coil \(B\)
PHXII06:ELECTROMAGNETIC INDUCTION

358595 Assertion :
In electric circuits, wires carrying currents in opposite directions are often twisted together.
Reason :
If the wires are not twisted together, the combination of wires forms a current loop. The magnetic field generated by the loop might affect adjacent circuits or components.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358596 Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction)

1 Both will reach the earth's surface simultaneously.
2 Insulating ball will reach the earth's surface earlier than the metal ball
3 Metal ball will reach the earth's surface earlier than the insulating ball
4 Time taken by them to reach the earth's surface will be independent of the properties of their materials
PHXII06:ELECTROMAGNETIC INDUCTION

358597 In the figure as shown, a conducting wire \({P Q}\) of length \(1\,m\) is moving in a uniform magnetic field \({B=3 {~T}}\) with constant velocity \({v=2 {~m} / {sec}}\) towards right. Given, \(R = 2\,\Omega \), \({C=1 {~F}}\) and \(L = 2\,H\). The current through resistance, capacitor and inductor at any time \({t}\) are \({I_{1}, I_{2}}\) and \({I_{3}}\) respectively. The value of \({I_3}\) at time \(t = 2\,\sec \) is
supporting img

1 \(3\,A\)
2 \(9\,A\)
3 \(5\,A\)
4 \(6\,A\)
PHXII06:ELECTROMAGNETIC INDUCTION

358593 Assertion :
The coil in the resistance boxes are made by doubling the wire.
Reason :
Only thick wires are to be in any resistance box.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358594 A system \(S\) consists of two coils \(A\) and \(B\). The coil \(A\) carries a steady current \(I\). While the coil \(B\) is suspended nearly as shown in figure. Now, if the system is heated, so as to raise the temperature of two coils steadily, then
supporting img

1 The two coils shows attraction
2 The two coils shows repulsion
3 There is no change in the position of the two coils
4 Induced current are not possible in coil \(B\)
PHXII06:ELECTROMAGNETIC INDUCTION

358595 Assertion :
In electric circuits, wires carrying currents in opposite directions are often twisted together.
Reason :
If the wires are not twisted together, the combination of wires forms a current loop. The magnetic field generated by the loop might affect adjacent circuits or components.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII06:ELECTROMAGNETIC INDUCTION

358596 Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following (Assume negligible air friction)

1 Both will reach the earth's surface simultaneously.
2 Insulating ball will reach the earth's surface earlier than the metal ball
3 Metal ball will reach the earth's surface earlier than the insulating ball
4 Time taken by them to reach the earth's surface will be independent of the properties of their materials
PHXII06:ELECTROMAGNETIC INDUCTION

358597 In the figure as shown, a conducting wire \({P Q}\) of length \(1\,m\) is moving in a uniform magnetic field \({B=3 {~T}}\) with constant velocity \({v=2 {~m} / {sec}}\) towards right. Given, \(R = 2\,\Omega \), \({C=1 {~F}}\) and \(L = 2\,H\). The current through resistance, capacitor and inductor at any time \({t}\) are \({I_{1}, I_{2}}\) and \({I_{3}}\) respectively. The value of \({I_3}\) at time \(t = 2\,\sec \) is
supporting img

1 \(3\,A\)
2 \(9\,A\)
3 \(5\,A\)
4 \(6\,A\)