Edexcel IGCSE Physics 6.16 Generating Electricity Questions

Trace how a magnet or coil rotates relative to a magnetic field to induce voltage, then relate faster rotation to increased current in a connected circuit.

Exam points

Explain how a rotating magnet in a coil, or a rotating coil in a magnetic field, induces a voltage that drives current in a complete circuit.
Predict how faster generator rotation increases induced voltage and current or electrical output, such as charging a battery or lighting a bicycle lamp.

[Maximum number: 3]

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.

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Edexcel IGCSE Physics 6.16 Generating Electricity Questions question 1