Question

17. State two ways of increasing the strength of an
electromagnet.​

Answer 1

Answer:

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Explanation:

The strength of an electromagnet depends on:

Increasing he strength of the current passing through the coil, the greater the current, the greater the strength;

Increasing the number of turns in the coils, the greater the number of turns, the greater the strength;

Whether the core is made up of a soft or hard magnetic material. Soft iron will magnetize more readily than steel. Therefore, using a soft core increase the strength of the electromagnet.

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Answer 2

Answer:

The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage. You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet

Explanation:

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