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4.5.6a Construction and operation of a transformer

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Question 76

The transformer in a portable speaker power supply is used to change mains voltage from 240 V to 12 V. The transformer has 80 turns on the secondary coil. Which type of transformer is it and how many turns does the transformer have on the primary coil?

A

Step-down, 444

B

Step-down, 160016001600

C

Step-up, 444

D

Step-up, 160016001600

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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