An alternating current is given by I =...

An alternating current is given by
`I = i_1 cos omegat + i_2 sin omegat`.
The rms current is given by

A

`((I_1+I_2))/sqrt2`

B

`((I_1+I_2)^2)/sqrt2`

C

`sqrt((I_1^2 +I_2^2)/2)`

D

`sqrt((I_1^2 -I_2^2)/2)`

Verified by Experts

The correct Answer is:

C

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