EXAMIANS
When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon
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A material which is slightly repelled by a magnetic field is known as
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The ratio of intensity of magnetisation to the magnetisation force is known as
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Core of an electromagnet should have
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The unit of flux is the same as that of
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Indicate which of the following material does not retain magnetism permanently.
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Ferrites are a sub-group of
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Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.
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The bar magnet has
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For which of the following materials the saturation value is the highest?
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