EduNinjaDescribe the generation of electricity by the rotation of a magnet within a coil of wire and of a coil of wire within a magnetic field, and describe the factors that affect the size of the induced voltage
This question is about a radio powered by a person turning a handle.
The radio has a battery which stores energy when the handle is turned.
The diagram shows the part of the radio called a generator.
The generator produces a voltage which does electrical work on the battery.
Explain how the generator produces a voltage.
Diagram 1 shows some of the stages of electricity generation in a nuclear power station.
Diagram 1
High pressure steam transfers energy from the reactor to a turbine.
The turbine spins as the steam passes through it.
Diagram 2 shows a simplified generator connected to the turbine.
Diagram 2
Explain how electricity is generated by the generator.
Diagram 1 shows a generator inside a small wind turbine. The generator is connected to a lamp and the windmill blades.
Diagram 1
When the coil rotates in the direction of the arrow, the ammeter displays a small current.
Explain how the generator produces a current.