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4.5.6a Construction and operation of a transformer

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Question 5

Cables transmit electrical power from a step-up transformer at a power station to a step-down transformer at a substation. To minimize power loss (wasted heat) in the transmission cables, which combination of transmission voltage and cable thickness (cross-sectional area) is optimal?

A

Low transmission voltage, small cable thickness

B

Low transmission voltage, large cable thickness

C

High transmission voltage, small cable thickness

D

High transmission voltage, large cable thickness

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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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