The current in a coil changes from 4 ampere to zero in 0.1 s. If the a – McqOptions

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1.	The current in a coil changes from 4 ampere to zero in 0.1 s. If the average e.m.f. induced is 100 volt, what is the self inductance of the coil [MNR 1998]
A.	\[2.5\ H\]
B.	\[25\,H\]
C.	\[400\ H\]
D.	\[40\ H\]
Answer» B. \[25\,H\]

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