Inductance
PHXII06:ELECTROMAGNETIC INDUCTION

358576 Current in a coil changes from \(4\;A\) to zero in 0.1 second and the emf induced is \(100\;\,V\). The self inductance of the coil is

1 \(0.25\,H\)
2 \(0.4\,H\)
3 \(2.5\,H\)
4 \(4\,H\)
PHXII06:ELECTROMAGNETIC INDUCTION

358577 A coil having an inductance of \(0.5\,H\) carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is:

1 10
2 5
3 2.5
4 1.25
PHXII06:ELECTROMAGNETIC INDUCTION

358578 An average induced e.m.f of \(1\;V\) appears in a coil when the current in it is changed from \(10\;A\) in one direction to \(10\;A\) in opposite direction in \(0.5\sec \). Self- inductance of the coil is:

1 \(25\,mH\)
2 \(50\,mH\)
3 \(75\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358579 When the number of turns and the length of the solenoid are doubled keeping the area of crosssection same, the inductance

1 Is havled
2 Remains the same
3 Becomes four times
4 Is doubled
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PHXII06:ELECTROMAGNETIC INDUCTION

358576 Current in a coil changes from \(4\;A\) to zero in 0.1 second and the emf induced is \(100\;\,V\). The self inductance of the coil is

1 \(0.25\,H\)
2 \(0.4\,H\)
3 \(2.5\,H\)
4 \(4\,H\)
PHXII06:ELECTROMAGNETIC INDUCTION

358577 A coil having an inductance of \(0.5\,H\) carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is:

1 10
2 5
3 2.5
4 1.25
PHXII06:ELECTROMAGNETIC INDUCTION

358578 An average induced e.m.f of \(1\;V\) appears in a coil when the current in it is changed from \(10\;A\) in one direction to \(10\;A\) in opposite direction in \(0.5\sec \). Self- inductance of the coil is:

1 \(25\,mH\)
2 \(50\,mH\)
3 \(75\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358579 When the number of turns and the length of the solenoid are doubled keeping the area of crosssection same, the inductance

1 Is havled
2 Remains the same
3 Becomes four times
4 Is doubled
PHXII06:ELECTROMAGNETIC INDUCTION

358576 Current in a coil changes from \(4\;A\) to zero in 0.1 second and the emf induced is \(100\;\,V\). The self inductance of the coil is

1 \(0.25\,H\)
2 \(0.4\,H\)
3 \(2.5\,H\)
4 \(4\,H\)
PHXII06:ELECTROMAGNETIC INDUCTION

358577 A coil having an inductance of \(0.5\,H\) carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is:

1 10
2 5
3 2.5
4 1.25
PHXII06:ELECTROMAGNETIC INDUCTION

358578 An average induced e.m.f of \(1\;V\) appears in a coil when the current in it is changed from \(10\;A\) in one direction to \(10\;A\) in opposite direction in \(0.5\sec \). Self- inductance of the coil is:

1 \(25\,mH\)
2 \(50\,mH\)
3 \(75\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358579 When the number of turns and the length of the solenoid are doubled keeping the area of crosssection same, the inductance

1 Is havled
2 Remains the same
3 Becomes four times
4 Is doubled
PHXII06:ELECTROMAGNETIC INDUCTION

358576 Current in a coil changes from \(4\;A\) to zero in 0.1 second and the emf induced is \(100\;\,V\). The self inductance of the coil is

1 \(0.25\,H\)
2 \(0.4\,H\)
3 \(2.5\,H\)
4 \(4\,H\)
PHXII06:ELECTROMAGNETIC INDUCTION

358577 A coil having an inductance of \(0.5\,H\) carries a current which is uniformly varying from zero to 10 ampere in 2 second. The e.m.f. (in volts) generated in the coil is:

1 10
2 5
3 2.5
4 1.25
PHXII06:ELECTROMAGNETIC INDUCTION

358578 An average induced e.m.f of \(1\;V\) appears in a coil when the current in it is changed from \(10\;A\) in one direction to \(10\;A\) in opposite direction in \(0.5\sec \). Self- inductance of the coil is:

1 \(25\,mH\)
2 \(50\,mH\)
3 \(75\,mH\)
4 \(100\,mH\)
PHXII06:ELECTROMAGNETIC INDUCTION

358579 When the number of turns and the length of the solenoid are doubled keeping the area of crosssection same, the inductance

1 Is havled
2 Remains the same
3 Becomes four times
4 Is doubled