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Electric Components and Circuit Diagram

In a circuit ...

Question

In a circuit when ac ammeter is connected it reads $i$ current if a student uses dc ammeter in place of ac ammeter the reading in the dc ammeter will be

A

\frac{i}{\sqrt{2}}

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B

i

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C

0.637 i

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D

z e r o

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Solution

The correct option is D $z e r o$
zero.

The reading will be zero as as the DC ammeter shows average current and the average of an alternating current is zero.

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