These are similar to one and two mark questions but you will be expected to write in more depth for three and four mark questions.
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The figure below shows a coil of wire in a circuit:
On the figure above, draw the magnetic field due to the current in the coil. [3 marks]
The magnetic field should show:
A teacher used the equipment shown in the image below to demonstrate the motor effect.
Describe how Fleming’s left-hand rule can be used to determine the direction in which the rod will move when the switch is closed, and state the direction. [3 marks]
A strong answer will be clearly worded and include at least three of the following points:
In a scrapyard, an electromagnet is used to lift and release cars so they can be moved around.
Suggest two ways a solenoid could be made to lift and release cars in a scrapyard.
Explain why each suggestion would be useful in the scrapyard. [2 marks]
Any two of the following:
It’s important that you mention the effect of each suggestion.
The figure below shows the ignition circuit used to switch the starter motor in a car on.
The circuit includes an electromagnetic switch:
Explain how the ignition circuit works. [4 marks]
A strong answer will be clearly worded with good use of scientific key words and will include any four points from: