Cambridge IGCSE Physics practice

Paper 3 structured question: The transformer

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Paper

Marks

Topic

The transformer

Exam-style question

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Paper 3Theory (Core)4 marks

High-voltage transmission lines are used to transport electricity from power plants to cities.

Description

Electricity is transmitted at high voltages to reduce losses.

a
Describe how transformers are used in this process.
Your answer
Aim for approximately 4 distinct marking points.
[4]

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Paper 3Theory (Core)1 marks

Description

Transformers are essential for adjusting voltage levels in the electrical grid.

a
State the function of a transformer in high-voltage transmission.
Your answer
Aim for approximately 1 distinct marking point.
[1]