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The ratio of r.m.s. value of an A.C. vol...

The ratio of r.m.s. value of an A.C. voltage and its mean value over half cycle is ....

A

`sqrt2:1`

B

`sqrt2:pi`

C

`2:pi`

D

`pi:2sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
D
Mean value over half cycle of A.C. voltage
`=(2V_0)/pi` and r.m.s. value `=V_0/sqrt2`
`therefore` Ratio = `(ltVgt)/V_"rms" = (2V_0)/pixxsqrt2/V_0 =(2sqrt2)/pi`
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