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The rms value of the emf given by E = 8...

The rms value of the emf given by ` E = 8 sin omegat + 6 sin 2omegat` .

A

`5sqrt2V`

B

`7sqrt2 V`

C

10 V

D

`10 sqrt2 V`

Text Solution

Verified by Experts

The correct Answer is:
A
E = `8 sin omega t + 6 sin 2 omega t`
`Rightarrow E_(peak) = sqrt((8)^(2) + (6)^(2)) = 10 V Rightarrow E_(rms) = (10)/(sqrt2) = 5 sqrt 2V`
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