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If in a coil rate of change of area is ...

If in a coil rate of change of area is `5 m^(2)` / milli second and current become 1 amp from 2 amp in `2 xx10^(-3)` sec . If magnitude of field is 1 tesla self inductance of the coil is :

A

2H

B

5H

C

20H

D

10 H

Text Solution

Verified by Experts

The correct Answer is:
D
`(Delta phi)/(Deltat)=(LDeltai)/(Deltat)`
`B (DeltaA)/(Deltat)=(LDeltai)/(Deltat) L=10 H`
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RESONANCE ENGLISH-ELECTROMAGNETIC INDUCTION-Exercise
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