Inductance
PHXII06:ELECTROMAGNETIC INDUCTION

358580 The current following through an inductance coil of self inductance \(6\,mH\) at different time instants is as shown. The emf induced between \(t = 20\;s\) and \(t = 40\;s\) is nearly
supporting img

1 \(2 \times {10^{ - 2}}\;\,V\)
2 \(3 \times {10^{ - 4}}\;\,V\)
3 \(4 \times {10^{ - 3}}\,\;V\)
4 \(30 \times {10^2}\,\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358581 Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self-inductances will be:

1 \(1: 2\)
2 \(2: 1\)
3 \(1: 1\)
4 \(1: 4\)
PHXII06:ELECTROMAGNETIC INDUCTION

358582 The current in a coil changes from \(2 A\) to \(5 A\) in\(0.3\;s.\) The magnitude of emf induced in the coil is \(1.0\;V.\) The value of self-inductance of the coil is

1 \(0.1\,mH\)
2 \(0.2\,mH\)
3 \(1.0\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358583 Assertion :
An electric lamp is connected in series with a long solenoid of copper with aircore and then connected to \(A C\) source. If an iron rod is inserted in solenoid the lamp will become dim.
Reason :
If an iron rod is inserted in solenoid, the inductance of solenoid increases.

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

358580 The current following through an inductance coil of self inductance \(6\,mH\) at different time instants is as shown. The emf induced between \(t = 20\;s\) and \(t = 40\;s\) is nearly
supporting img

1 \(2 \times {10^{ - 2}}\;\,V\)
2 \(3 \times {10^{ - 4}}\;\,V\)
3 \(4 \times {10^{ - 3}}\,\;V\)
4 \(30 \times {10^2}\,\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358581 Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self-inductances will be:

1 \(1: 2\)
2 \(2: 1\)
3 \(1: 1\)
4 \(1: 4\)
PHXII06:ELECTROMAGNETIC INDUCTION

358582 The current in a coil changes from \(2 A\) to \(5 A\) in\(0.3\;s.\) The magnitude of emf induced in the coil is \(1.0\;V.\) The value of self-inductance of the coil is

1 \(0.1\,mH\)
2 \(0.2\,mH\)
3 \(1.0\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358583 Assertion :
An electric lamp is connected in series with a long solenoid of copper with aircore and then connected to \(A C\) source. If an iron rod is inserted in solenoid the lamp will become dim.
Reason :
If an iron rod is inserted in solenoid, the inductance of solenoid increases.

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

358580 The current following through an inductance coil of self inductance \(6\,mH\) at different time instants is as shown. The emf induced between \(t = 20\;s\) and \(t = 40\;s\) is nearly
supporting img

1 \(2 \times {10^{ - 2}}\;\,V\)
2 \(3 \times {10^{ - 4}}\;\,V\)
3 \(4 \times {10^{ - 3}}\,\;V\)
4 \(30 \times {10^2}\,\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358581 Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self-inductances will be:

1 \(1: 2\)
2 \(2: 1\)
3 \(1: 1\)
4 \(1: 4\)
PHXII06:ELECTROMAGNETIC INDUCTION

358582 The current in a coil changes from \(2 A\) to \(5 A\) in\(0.3\;s.\) The magnitude of emf induced in the coil is \(1.0\;V.\) The value of self-inductance of the coil is

1 \(0.1\,mH\)
2 \(0.2\,mH\)
3 \(1.0\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358583 Assertion :
An electric lamp is connected in series with a long solenoid of copper with aircore and then connected to \(A C\) source. If an iron rod is inserted in solenoid the lamp will become dim.
Reason :
If an iron rod is inserted in solenoid, the inductance of solenoid increases.

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.
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PHXII06:ELECTROMAGNETIC INDUCTION

358580 The current following through an inductance coil of self inductance \(6\,mH\) at different time instants is as shown. The emf induced between \(t = 20\;s\) and \(t = 40\;s\) is nearly
supporting img

1 \(2 \times {10^{ - 2}}\;\,V\)
2 \(3 \times {10^{ - 4}}\;\,V\)
3 \(4 \times {10^{ - 3}}\,\;V\)
4 \(30 \times {10^2}\,\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358581 Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self-inductances will be:

1 \(1: 2\)
2 \(2: 1\)
3 \(1: 1\)
4 \(1: 4\)
PHXII06:ELECTROMAGNETIC INDUCTION

358582 The current in a coil changes from \(2 A\) to \(5 A\) in\(0.3\;s.\) The magnitude of emf induced in the coil is \(1.0\;V.\) The value of self-inductance of the coil is

1 \(0.1\,mH\)
2 \(0.2\,mH\)
3 \(1.0\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358583 Assertion :
An electric lamp is connected in series with a long solenoid of copper with aircore and then connected to \(A C\) source. If an iron rod is inserted in solenoid the lamp will become dim.
Reason :
If an iron rod is inserted in solenoid, the inductance of solenoid increases.

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.