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A direct current of 2 A and an alternati...

A direct current of 2 A and an alternating current having a maximum value of 2 A flow through two identical resistances. The ratio of heat produced in the two resistances will be

A

0.042361111111111

B

0.043055555555556

C

0.084027777777778

D

0.16736111111111

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(DC)(H) / underset(DC)(H) = ( underset(DC)(i)/underset(rms)(i))^(2) (sinceH proptoi^(2) = 2/sqrt 2)^(2) = 2`
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