A group of electric lamps having a total...

A group of electric lamps having a total power rating of `1000` watt is supplied by an `AC` voltage `E=200sin(310t+60^(@))`. Then the r.m.s value of the circuit current is

A

`10A`

B

`10sqrt(2)A`

C

`20A`

D

`20sqrt(2)A`

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The correct Answer is:

B

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