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The current in the primary coil of a pair of coils changes from 7 A to 3 A in 0.04 s. The mutual inductance between the two coils is 0.5 H. The induced emf in the secondary coil is -(a) 50 V(b) 75 V(c) 100 V(d) 220 V |
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Answer» Option : (a) 50 V |
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