MCQs: The force which a magnet exerts is called
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MCQs: Electromagnets are used in
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MCQs: Natural magnet is also called as
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MCQs: A substance consisting of a coil of wire with an iron core and is only magnetized when an electric current flows through it is called
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MCQs: A rock which attracted iron materials was found by
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MCQs: The parts of magnet which are concentrated in attraction or repulsion are called
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MCQs: Alnico is composed of iron
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MCQs: An instrument which uses magnet to give direction is known as
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MCQs: Examples of magnets includes
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MCQs: Like poles have force called
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MCQs: Ceramic magnets are made of
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MCQs: Magnetic materials include
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MCQs: The region surrounded a magnet is called
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MCQs: The element which easily get magnetized and demagnetized is
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MCQs: The dodo became extinct in
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MCQs: Smoke particles and harmful gases released in air produces a
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MCQs: Environment can be kept clean and green by using
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MCQs: Fertilizers supports growth of
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MCQs: If untreated waste water will be directly spill in to rivers, sea and lakes it may
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MCQs: When forests are cleared on a very large scale by cutting or burning them down it is
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