If the rms current in a 50 Hz ac circuit is 5 A, the value of the current `1//300` second after its value becomes zero isA. `5sqrt(2)`AB. `5sqrt(3//2)` AC. `5//6` AD. `5//sqrt(2)` A

If the rms current in a 50 Hz ac circuit is 5 A, the value of the curr

1.	If the rms current in a 50 Hz ac circuit is 5 A, the value of the current `1//300` second after its value becomes zero isA. `5sqrt(2)`AB. `5sqrt(3//2)` AC. `5//6` AD. `5//sqrt(2)` A
Answer» Correct Answer - B Given, `v=50Hz, I_(rms)=5A` `t=1/300s` We have to find I(t) `I_(0)= "Peak value"=sqrt(2), I_(rms)=sqrt(2) xx5` `=5sqrt(2)` A `I=I_(0)sinomegat=5sqrt(2)sin2pivt=5sqrt(2)sin 2pi xx 50 xx 1/300` `=5sqrt(2)sin pi/3=5sqrt(2) xx sqrt(3)/2 = 5sqrt(3//2)` A

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If the rms current in a 50 Hz ac circuit is 5 A, the value of the current `1//300` second after its value becomes zero isA. `5sqrt(2)`AB. `5sqrt(3//2)` AC. `5//6` AD. `5//sqrt(2)` A

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