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electronics and communication engineering measurements and instrumentation
1. A moving iron voltmeter reads 250 V when connected to 250 V dc. If connected to 250 V 50 Hz, the voltmeter reading is likely to be
(A): 210 V
(B): 248 V
(C): 250 V
(D): 252 V
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Comments
By: guest on 02 Jun 2017 01.00 am
The inductance of coil will allow slightly less ac current. Hence reading slightly less.
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