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8 Cards in this Set
- Front
- Back
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What is a magnetic field?
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A region where a magnetic force is experienced by magnetic materials.
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What are the three magnetic materials?
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Iron, Cobalt and Nickel.
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How can you find the shape of a magnetic field?
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You can use a plotting compass or iron filings.
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What do like poles do to each other?
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They attract each other.
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What do opposite poles do to each other?
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They repel each other.
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What are magnetic fields produced by?
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They are produced by electric currents.
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What factors affect the strength of an electromagnet and how do they affect it?
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The stronger the current travelling through the electromagnet, the stronger the electromagnet. The greater the number of coils in the wire, the stronger the electromagnet.
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Name two useful applications of an electromagnet.
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An electric bell and a loudspeaker.
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