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The current passing through a choke coil...

The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of `3 amp//sec`. The e.m.f developed across the coil is

A

`-8 V`

B

`-10 V`

C

`-12 V`

D

`-6 V`

Text Solution

Verified by Experts

The correct Answer is:
C
`e = -L(dI)/(dt) = 4(-3) = -12 V`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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