Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 2 (Q.No. 9)
9.
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
250 V
252 V
248 V
210 V
Answer: Option
Explanation:

The inductance of coil will allow slightly less ac current. Hence reading slightly less.

Discussion:
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