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How does a generator work?
Quick answer
A generator works by spinning a coil of wire inside a magnetic field, which pushes electrons through the wire and creates an electric current. It's essentially an electric motor run in reverse — turning motion into electricity. Mechanical motion spins a coil within a magnetic field.
Step by step
- Mechanical motion spins a coil within a magnetic field.
- The changing magnetic field pushes electrons through the wire (electromagnetic induction).
- The faster it spins, the more electricity it produces.
- Power plants spin generators using steam, water, or wind.
- It is the reverse of a motor, which turns electricity into motion.
People also ask
How does a generator make electricity?
By moving a coil and magnet relative to each other; the changing magnetic field drives electrons through the wire, a process called electromagnetic induction.
What spins the generator in a power plant?
Usually a turbine driven by steam (from burning fuel or nuclear heat), falling water, or wind.
Is a generator the same as a motor?
They're mirror images: a motor turns electricity into motion, while a generator turns motion into electricity, using the same basic parts.
Part of the guide: Everyday Machines →