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4.5.6a Construction and operation of a transformer

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Question 13

A step-up transformer at a power station is used to prepare electricity for long-distance transmission.

The transformer increases the generator's output voltage from 18 kV18\text{ kV}18 kV to a transmission voltage of 132 kV132\text{ kV}132 kV. The primary coil of this transformer has 600600600 turns.

a.

Calculate the number of turns on the secondary coil.

[2]
b.

Explain the advantages of transmitting electricity at high voltages such as 132 kV132\text{ kV}132 kV.

[3]
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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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