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4.5.6a Construction and operation of a transformer

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Question 7

A transformer has 300 turns on its primary coil and 9000 turns on its secondary coil. Connected in this way, for what purpose could this transformer be used?

A

to convert the 4000 V4000\text{ V}4000 V a.c. output of a generator to 120 000 V120\,000\text{ V}120000 V for long-distance power transmission

B

to convert the 120 000 V120\,000\text{ V}120000 V d.c. supply from a power line to 4000 V4000\text{ V}4000 V for local transmission

C

to use a 240 V240\text{ V}240 V a.c. mains supply to operate an 8 V8\text{ V}8 V motor

D

to use an 8 V8\text{ V}8 V d.c. supply to operate a 240 V240\text{ V}240 V lamp

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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