Can you power a light bulb with an electric motor?
I know that spinning an electric motor makes electricity, it's what they use at Hoover Dam. If you were to spin a motor by hand, and hook two wires from it to a light bulb, would it work?
Answer by Steve
Used as you describe, it wouldn't be a motor, but a generator. It would work only if the motor you start with was capable of providing back EMF when forced to rotate.
Remember that a motor is optimized to turn electrical energy into mechanical, so you would likely have a poor efficiency of conversion in the opposite direction.........
Think of the generators used to light bicycle lights by letting the tire spin a serrated wheel on the generator drive shaft.
Add your own answer in the comments!
Republished by Blog Post Promoter
- Where can i find bluebprints for a small hyrdo electric generator to light a light bulb?
- What happened after Thomas Alva Edison invented the electric light bulb?
- Q&A: An instructor furiously cranks an electric generator to simultaneously power 5 electric light bulbs?
- Q&A: how can an electric generator make light?
- Why can’t a generator power an electric motor which in turn powers the generator?