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6 Cards in this Set
- Front
- Back
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Name the magnetic materials
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Nickel, cobalt and iron
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What is a magnetic field?
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A magnetic field is a region where a force is experienced by magnetic materials.
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How do you find the shape of a magnetic field?
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Using a plotting compass or iron filings.
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Describe what happens with like and opposite poles
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Like poles repel and opposite poles attract.
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How is a magnetic field produced?
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A magnetic field is produced by electric currents (as in an electromagnet).
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What factors affect the strength of an electromagnet?
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The temperature, current, length of the core, diameter, the thickness of the wire used for the coils, how tightly the coils of wire are wrapped around, the material and also the number of turns on the electromagnet.
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