Question 217Electricity/Electronics - QMED70% to pass
A 125 volt DC motor is rated at 10 kW. What is the current rating of the motor?
AI Explanation
The correct answer is D) 80 amps.
To calculate the current rating of a DC motor, we can use the formula: Power (in watts) = Voltage (in volts) x Current (in amps). Rearranging this formula, we get: Current (in amps) = Power (in watts) / Voltage (in volts).
Given that the motor is rated at 10 kW (10,000 watts) and 125 volts DC, the current rating can be calculated as 10,000 watts / 125 volts = 80 amps.
The other options are incorrect because they do not correctly apply the power-voltage-current relationship for a DC motor.
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