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Wave A = 100 sin ωt and wave B = 100 cos ωt. Then

rms values of the two waves are equal
rms values of A is more than that of B
rms values of A is less than that of B
rms values of the two waves may or may not be equal

Correct Answer: rms values of the two waves are equal

Explanation:

Since peak values are equal, their rms values are equal irrespective of phase difference.

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