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An AC is given by the equation i=i(1)cos...

An AC is given by the equation `i=i_(1)cos omegat+i_(2)sin omegat`. The r.m.s. current is given by

A

`(i_(1) + i_(2))/(sqrt2`

B

`(|i_(1) + i_(2)|)/(sqrt2`

C

`sqrt((i_(1) + i_(2))/(2`

D

`sqrt((i_(1) + i_(2))/(sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
C
`bari^(2) = (i_(1)^(2))/(2) + i_(2)^(2)/(2)`
`i_(rms) = sqrt((bari_(1)^(2)+ i_(2)^(2))/(2)` .
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