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Course: Science — Third Preparatory
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Science — Third Preparatory

Science — Third Preparatory

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Science — Third Preparatory 2026/2027

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Unit 1 - Force, Motion, Acceleration and Physical Quantities

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Quiz

Question bank: Unit 2 — Electricity and Magnetism

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  • Questions count: 2
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1.
Soft iron is used as the core of an electromagnet because it:
is a good insulator
is easily magnetised and demagnetised
keeps its magnetism for ever
has a very high resistance
2.
Which change does NOT increase the strength of an electromagnet?
More turns of wire
Larger current
A soft iron core
Using a different colour of insulation
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