1.

A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the initial value of the current in the circuit.(a) 5A(b) 10A(c) 0 A(d) 20A

Answer» Right choice is (c) 0 A

Easiest explanation: Initially, inductor behave as open circuit for dc current so, i=0.


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