Q.

What is the self Inductance of a coil which produces  an emf of 5V when current in it changes from 3A to 2A in 1ms ?

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a

5000H

b

5mH

c

50H

d

5H

answer is B.

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Detailed Solution

V=Ldidt⇒L(3−2)10−3=5  L= 5×10-3H =5 m H
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