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In a coil, L=5H, current changes at the ...

In a coil, `L=5H`, current changes at the rate of `2` ampere per second. The induced emf

A

`-10V`

B

10 V

C

5 V

D

`-5V`

Text Solution

Verified by Experts

The correct Answer is:
A
`e=-L(dI)/(dt)=-5xx2=-10V`
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