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If reading of an ammeter is 10 A, the pe...

If reading of an ammeter is 10 A, the peak value of current is

A

`(10)/(sqrt(2))A`

B

`(5)/(sqrt(2))A`

C

`20sqrt(2)A`

D

`10sqrt(2)A`

Text Solution

Verified by Experts

The correct Answer is:
D
Ammeter reads the root mean square value of current `(i_(rms))` which is related to the peak value of current `(i_(0))` by the relation,
`i_(rms)=(i_(0))/(sqrt(2))`
`implies i_(0)=sqrt(2)xxi_(rms)=sqrt(2)xx10A`
`=10sqrt(2)`
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