Asked Aug 4, 2019

An electric motor has an effective resistance of 33.4 Ω and an inductive reactance of 49.4 Ω when working under load. The rms voltage across the alternating source is 411 V. Calculate the rms current.


Expert Answer

Step 1

Write the expression for the rms current of  a LR circuit.


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I rms current V I = Z V = rms voltage impedenceof the circuit Z R resistance Z L X, inductive reactance T

Step 2

Substitute the given values when the rms voltag...


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R 33.4 Z (33.4)(49.40) |X 49.4 L = 59.630 411V I = 59.63Q [V 411V 6.9 A


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Alternating Current

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