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An electric motor has an effective resistance of 32.0 ohms and an inductive reactance of 45.0 ohms when working underload. The rms voltage across the alternating source is 420 V.…
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An electric motor has an effective resistance of 32.0 ohms and an inductive reactance of 45.0 ohms when working underload. The rms voltage across the alternating source is 420 V.…
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Oct 12, 2018
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An electric motor has an effective resistance of 32.0 ohms and an inductive reactance of 45.0 ohms when working underload. The rms voltage across the alternating source is 420 V. Calculate the rms current
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I=V/Z. Z = 32+j45 ohm. The magnitude of this is √(32² + 45²) = 55.22 ohm
420V/55.22 ohm = 7.6A rms.
CadentOrange
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