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4.5.6a Construction and operation of a transformer

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Question 58

The primary voltage supplied to a transformer is 8.0 V. The secondary voltage is 12.0 V and the secondary current is 3.0 A. The transformer is 100% efficient.

What is the primary current in the transformer?

A

2.0 A2.0\text{ A}2.0 A

B

4.5 A4.5\text{ A}4.5 A

C

5.0 A5.0\text{ A}5.0 A

D

8.0 A8.0\text{ A}8.0 A

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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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