what is the r.m.s. value of an alternating current which when passed through a resister heat which is thrice of that produced by a direct current in the same resister
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RMS value of AC current = Magnitude of the DC current
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Heat produced by ac = 3 ´ Heat produced by dc
therefore, i² rmsRt = 3× i²Rt => i²rms = 3× 2²
=> i rms= 2√ 3
= 3.46A
therefore, i² rmsRt = 3× i²Rt => i²rms = 3× 2²
=> i rms= 2√ 3
= 3.46A
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