The average e.m.f. induced in a coil in which the current changes from – McqOptions

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1.	The average e.m.f. induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 second is 8 volt. What is the self-inductance of the coil? [NCERT 1984; CPMT 1997; MP PMT 1999, 2003; UPSEAT 2000; RPMT 2000; Pb. PMT 2002; RPET 2003; DPMT 2005]
A.	0.1 H
B.	0.2 H
C.	0.4 H
D.	0.8 H
Answer» C. 0.4 H

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