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In a sinusoidal wave, average current is always _______ rms current.(a) Greater than(b) Less than(c) Equal to(d) Not relatedI have been asked this question in my homework.The origin of the question is Average and RMS Values of an Alternating Current in division Alternating Voltage and Current of Basic Electrical Engineering

Answer»

The correct answer is (b) Less than

Best EXPLANATION: The average VALUE of current is the SUM of all the currents divided by the NUMBER of currents whereas RMS current is obtained by squaring all the current values, finding the average and then finding the SQUARE root. Hence RMS current is greater than average current.



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