Q116 / 180 · AIIMS 2010 · Physics

Alternating current cannot be measured by D.C. ammeter because

A
A.C. cannot pass through D.C. ammeter
B
A.C. changes direction
Correct answer
C
average value of current for complete cycle is zero
D
D.C. ammeter will get damaged

Solution

Average value of A.C. for complete cycle is zero. Hence A.C. can not be measured by D.C. ammeter.

Hence, the correct answer is option: 'C'.

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