EasyPhysicsmutual induction
+4 / -1
When the current changes from +2A to −2A in 0.05 second, an e.m.f. of 8V is induced in a coil. The coefficient of self-induction of the coil is –
A
0.2 H
B
0.4 H
C
0.8 H
D
0.1 H
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Switch is in position A for long time. At time t = 0 it is shifted to position B
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