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The r.m.s. value of an ac of 50 Hz is 10...

The r.m.s. value of an ac of 50 Hz is 10 A. (1) The time taken by the alternating current in reaching from zero to maximum value is `5 xx10^(-3)` sec (2) The time taken by the alternating current in reaching from zero to maximum value is `2 xx 10^(-3)` sec (3) The peak current is 14.14 A (4) The peak current is 7.07 A

A

1, 2 and 3 are correct

B

1 and 2 are correct

C

2 and 4 are correct

D

1 and 3 are correct

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