O-LevelPhysicsMagnetism5054/12 · Oct/Nov 2019 · Q371 Mark

Transformers are used to transmit electrical energy between power stations and transmission cables, as shown. What is the purpose of the transformer in the diagram?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Ato decrease the current and the potential difference from the power station

Bto decrease the current and increase the potential difference from the power station

Cto increase the current and the potential difference from the power station

Dto increase the current and decrease the potential difference from the power station

✓ Correct answer

B: to decrease the current and increase the potential difference from the power station

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