1.

The instantaneous value of current in an ac circuit isI 2 sin (100nt+/3) A. The current at the beginning(t 0) will be-(A)2 /3 A(B)/3 A/3(D) Zero

Answer»

Put t= 0 in the expression I = 2sin(100πt+π/3)we get I = 2sin(π/3) = 2√3/2 = √3A.

option B



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