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

If in a coil rate of change of area is `(5meter^(2))/(milli second)`and current become `1 amp` from `2 amp` in `2xx10^(-3)` sec. if magnetic field is `1` Tesla then 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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