Magnetism & Electromagnetism – HI MCQ!

Gilbert is a unit of?

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The magnetism left in the iron after exciting field has been removed is known as?

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The most effective and quickest way of making a magnet from soft iron is by?

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Fleming’s left hand rule is used to find?

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A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be?

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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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Air gap has …… reluctance as compared to iron or steel path?

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The retentivity (a property) of material is useful for the construction of?

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A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be?

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Core of an electromagnet should have?

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