28.In a circuit, there is a current of 5 amp which is changed such that
the current falls to zero in 0.1 sec. If an average e.m.f. of 200 volts
is induced, the self inductance of the circuit will be:
4 henrys
5 henrys
6 henrys
7 henrys
8 henrys
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1
Answer:
7henry ............
...
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