1.

The coil of a moving iron instrument has a resistance of 500 and an inductance of 1 H. It reads 250 V when a 250 V dc is applied. If series resistance is 2000 , its reading when fed by 250 V, 50 Hz ac will be

A. 260 V
B. 252 V
C. 250 V
D. 248 V
Answer» E.


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