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An alternating emf, e=300 sin100pit volt...

An alternating emf, e=300 sin100`pit` volt, is applied to a pure resistance of 100 `Omega`. The rms current through the circuit is

A

2.12 A

B

0.212 A

C

20.12 A

D

0.0212 A

Text Solution

Verified by Experts

The correct Answer is:
A
Comparing given equation with
`e=e_(0)sin omegat`, we have, `e_(0)=300V`
`therefore I_(rms)=(I_(0))/(sqrt(2))`
`=(e_(0))/(Rsqrt(2))=(300)/(100xx1.414)=2.12A`
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