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4.5.6a Construction and operation of a transformer

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Question 12

Why is electrical energy transmitted at high voltage over long distances?

A

To decrease the resistance of the cables.

B

To reduce the current in the cables, which decreases energy loss as heat.

C

To increase the speed at which the electrical energy travels.

D

To allow smaller pylons to be used.

Markscheme

4.5.6a Construction and operation of a transformer Questions

  1. IGCSE
  2. /Physics
  3. /4.5.6a Construction and operation of a transformer

136 exam-style questions on CIE IGCSE Physics 4.5.6a Construction and operation of a transformer. Each one has a worked solution and a mark scheme showing where the marks go.

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