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Find the rms value of current from t = 0...

Find the `rms` value of current from `t = 0` to `t=(2pi)/omega` if the current varies as `i=I_(m)sin omegat`.

Text Solution

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`ltigt =(underset(0)overset((2pi)/omega)int I_(m)sin omega t dt)/((2pi)/omega)=(I_(m)/omega(1-cosomega(2pi)/omega))/((2pi)/omega)=0`
it can be seen graphically that the area of `i-t` graph of one cycle is zero.
`therefore ltigt` in one cycle =`0`.
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