How to Make an AC Motor Run Off a DC Current?

Answer Power companies in the United States provide AC or alternating current. Batteries generate DC or direct current. Most motors and appliances run on AC because that is what is readily available. DC c... Read More »

Top Q&A For: How to Make an AC Motor Run Off a DC Current

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.)

What is more powerful for a vacuum cleaner motor a 12 amp motor or a 110 watt motor?

A 110 watt motor is equal to a 1 amp motor... Versus a 12 amp motor, the 12 is more powerful. You've probably confused 110 watts with volts, as a 1 amp motor could not be used in a vacuum (it's too... Read More »

How to Find the Current in a Parallel RLC Circuit Using the Current Divider Rule?

A parallel RLC circuit is comprise of resistors, a capacitor and an inductor arranged parallel to each other. This arrangement means that the circuit has two branches connected separately across th... Read More »

Does train touches overhead current of 25000 volts of current?