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An AC source rated 100 V (rms) supplies ...

An `AC` source rated `100 V (rms)` supplies a current of `10 A(rms)` to a circuit. The average power delivered by the source

A

must be 1000W

B

may be greater than 100W

C

may be less than 1000W

D

all of the above three are possible

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(av)=E_(v)I_(v)cos(phi)=100xx10 cos phi = 1000 cos phi Watt`
So depending upon value of `phi, P=(av)` can be equal to or less then 1000 W.
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