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What reading would you expact of a squar...

What reading would you expact of a square-wave current, suitching rapodly between +0.5 A and -0.5 A, when passed through an ac ammeter?

A

0

B

0.5A

C

0.25A

D

1.0A

Text Solution

Verified by Experts

The correct Answer is:
B
`(0.5)^(2)R((T)/(2))+(0.5)^(2)R((T)/(2))=I_(rms)^(2) RT`
or `I_(rms)=1/2 A = 0.5 A`.
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