What is the rms value of the current for...

What is the rms value of the current for A current I=100 cos (200t + `45^@` ) A ?

`50sqrt2A`

100A

`100sqrt2A`

Text Solution

Verified by Experts

The correct Answer is:

Comparing equation I=100 cos (200t + `45^@`)
`I=I_m cos (200t+45^@)` ,
`therefore I_m=100A`
`therefore I_(rms)=I_m/sqrt2 = 100/sqrt2=(100xxsqrt2)/2=50sqrt2A`

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