Question
The current through choke coil increases form zero to 6A in 0.3 seconds and an induced e.m.f. of 30 V is produced. The inductance of the coil of choke is(a) 5 H     (b) 2.5 H(c) 1.5 H  (d) 2 H
       

Answer

(c) 1.5 H  

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