In the given circuit (fig), current through the 5 mH inductor in steady state is:
A
23A
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B
83A
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C
13A
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D
53A
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Solution
The correct option is B83A Inductors 5 mH and 10 mH are connected in parallel, hence equivalent inductance Leq=5×105+10=5015=103 mH Current at steady state, I=205=4A As L1 and L2 are in parallel I1=I(L2L1+L2)=4[1010+5]=83A