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Alternating current can not be measured ...

Alternating current can not be measured by D.C. Ammeter because

A

AC cannot pass through DC ammeter

B

AC changes direction

C

average value of current for complete cycle is zero

D

DC ammeter will get damaged

Text Solution

Verified by Experts

The correct Answer is:
C
The full cycle of alternating current consists of two half cycles. For one-half, current is positive and for second half, current is negative. Therefore, for an AC cycle, the net value of current average out to zero. While the DC ammeter, reads the average value, hence, the alternating current cannot be measure by DC ammeter.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 1
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