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What is the correct expression for the rms value of current?(a) Irms=Im/2(b) Irms=Im/√2(c) Irms=Im/4(d) Irms=ImThis question was posed to me in unit test.My question is taken from Average and RMS Values of Sinusoidal & Non-Sinusoidal Currents and Voltages topic in portion Alternating Voltage and Current of Basic Electrical Engineering |
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Answer» RIGHT ANSWER is (B) Irms=Im/√2 To EXPLAIN: Irms^2 = ∫0^πdθ i^2/2π = Im^2/2 Irms=Im/√2. |
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