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A multimeter reads a voltage of a certai...

A multimeter reads a voltage of a certain A.C. source as 100 V. What is the peak value of voltage of A.C. source ?

A

141.4 V

B

200 V

C

400 V

D

100 V

Text Solution

Verified by Experts

The correct Answer is:
A
The multimeter reads the rms value of A.C. source.
`:.V_(rms)=100V`
The peak voltage of the source is
`V_(0)= sqrt(2)V_(rms)=sqrt(2)xx100V= 141.4V`
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