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

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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`
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1 Answer

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Correct Answer - A
`e=-L(dI)/(dt)=-5xx2=-10V`
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