Questions
Two circuits have mutual inductance of 0.1 H. What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s?
a
240 V
b
230 V
c
100 V
d
300 V
detailed solution
Correct option is C
|e|=Mdidt⇒|e|=0.1×(20-0)0.02=100 VTalk to our academic expert!
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Two circular coils can be arranged in any of the three situations shown in fig.. Their mutual
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