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8 Cards in this Set
- Front
- Back
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magnetic field |
a region around a magnetic material |
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Magnetism |
A physical phenomenon produced by the motion of electric charge |
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Magnetic lines of force |
Curved lines used to represent a magnetic field |
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Penetrating |
able to make a way through |
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Metal detector |
an electronic device that gives an audible signal when it is close to metal |
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alnico |
an alloy of alluminium, nickel, cobalt for making magnet |
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Intensity |
extreme degree of strength |
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Electromagnet |
a core of magnetic material surrounded by a coil of wire through which an electric current is passed to magnetize the core |
