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The alternating current is given by I=I1...

The alternating current is given by `I=I_1 cos omega t + I_2 sin omega t`. What is the rms current in the circuit ?

A

`(I_1+I_2)/2`

B

`(I_1+I_2)/sqrt2`

C

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

D

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

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