GCSE Level Questions: Transformers
Q3. The diagram shows a transformer
![](diagram3.png)
(a)
(i) What is part A?
Part A is the secondary(coil) / output (coil) ![](../../../../graphics/symbols/nuclides/ticksmall.png)
(1 mark)
(ii) What is part B and what is it made of?
Part B is the core
made of (laminated soft) iron. ![](../../../../graphics/symbols/nuclides/ticksmall.png)
(2 marks)
(iii) When there is an alternating current in the primary coil, what is produced in part B?
A magnetic field
which is changing / alternating
is produced in part B.
(2 marks)
(b) Transformers are used in the National Grid. The diagram shows part of the National Grid.
![](diagram2.png)
Complete the sentence in the box:
Transformer C is a step-up transformer and
transformer D is a step-down transformer. ![](../../../../graphics/symbols/nuclides/ticksmall.png)
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(1 mark)
(c) This is an item from a newspaper.
![](diagram1.png)
Which two suggestions would reduce the possible risk to people's health?
A: Do not build new houses near to existing power lines. ![](../../../../graphics/symbols/nuclides/ticksmall.png)
B: Move the power lines so that they take the shortest routes.
C: Move each power station to the centre of the nearest city.
D: Build new power lines away from where people live. ![](../../../../graphics/symbols/nuclides/ticksmall.png)
E: Use more transformers in the National Grid.
(2 marks)
(8 Marks Total)