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 A 500-watt vacuum cleaner is plugged into a 120-volt outlet and used for 30 minutes How much current runs through the vacuum?

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A vacuum cleaner uses 800 W of power The voltage source is 100 V What is the current flowing through the vacuum cleaner?

You plug a vacuum cleaner into a 110-V outlet with nothing else on the circuit If the 15-A circuit breaker is tripped. what is the maximum possible resistance of the vacuum's motor?

A vacuum cleaner is plugged into a 120.0-V socket and uses 3.0 A of current in normal operation when the back emf generated by the electric motor is 72.0 V Find the coil resistance of the motor?

Stable voltage across the motor = (120 - 72) = 48 VR = E / I = 48/3 = 16 ohms.(Assumes power-factor of 1, no reactances, back-emf in phase with the line, etc.)
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