Electric Motor Facts?

Answer Ever since a blacksmith from Vermont named Thomas Davenport invented the motor engine--which was DC powered--in 1833, inventors all around the world have come up with new and innovative mechanical ... Read More »

Top Q&A For: Electric Motor Facts

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.)

Facts on Motor Oil?

Internal combustion engines use motor oil to stay lubricated. While many people associate motor oil exclusively with automobiles, it is also used in many other machines, from lawnmowers to airplane... Read More »

Electric Guitar Fun Facts?

Electric guitars are the staple instrument of rock 'n' roll. Since the 1930s, they have been burning up the music world, and they show no signs of stopping. They have an interesting and storied pas... Read More »

Motor Oil Pollutant Facts?

Oil recycling reduces environmental hazards while minimizing our foreign oil dependence. Unfortunately, do-it-yourself oil changers only recycle 20 million gallons of the 180 million gallons they d... Read More »