An electric motor connected to a 120 V 60.0 Hz ac outlet does mechanical work at the
Question:
An electric motor connected to a 120 V 60.0 Hz ac outlet does mechanical work at the rate of 0.100 hp (1 hp = 746 W).
(a) If the motor draws an rms current of 0.650A, what is its effective resistance, relative to power transfer?
(b) Is this the same as the resistance of the motor's coils, as measured with an ohmmeter with the motor disconnected from the outlet?
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a The effective resistance Reff satisfies Reff Puechanical or 1125 Reff ...View the full answer
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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