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4.5.6a Construction and operation of a transformer

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Question 86

The transformer in a doorbell power supply is used to change mains voltage from 240 V to 12 V.

The transformer has 4000 turns on the primary coil.

Which type of transformer is it and how many turns does the transformer have on the secondary coil?

A

step-down, 200200200

B

step-down, 80 00080\,00080000

C

step-up, 200200200

D

step-up, 80 00080\,00080000

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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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