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4.5.6a Construction and operation of a transformer

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Question 61

An electrical grid transmits power over long distances. To reduce power loss in the transmission cables, transformers are used.

Which row in the table correctly identifies how the voltage is changed at the power station prior to transmission, and the resulting effect on the current flowing through the transmission lines?

A

Voltage: decreases; current: increases

B

Voltage: decreases; current: decreases

C

Voltage: increases; current: increases

D

Voltage: increases; current: decreases

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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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