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MCQs: The change in the strength of a magnetic field produces
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MCQs: The most common process for manufacturing products from salt solution is
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MCQs: To reduce the flow of current in an electric circuit and to avoid the danger of overheating resistor is used in a circuit which is called
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MCQs: In 1 minute, a 500W toaster consumes five times more energy than a
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MCQs: When switch is closed, the magnet pulls out the
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MCQs: Bulbs give off electrical energy in the form of
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MCQs: An example of good electrical conductor is
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MCQs: ELCB is also switched off if
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MCQs: One of the cause of short circuits is
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MCQs: The main supply system has plugs with
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MCQs: The resistor whose resistivity can be varied manually is known as
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MCQs: Resistors can be connected in
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MCQs: "ELCB" switches off when current in the earth wire is greater than
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MCQs: If one bulb goes out in parallel circuit, the others will
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MCQs: Iron bar is pulled back to its original position by
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MCQs: A material which loses electrons, becomes
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MCQs: In DC motor, the coil between two carbon rods or other contacts to which electric current is fed, is called
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MCQs: The coil sits between the north and the south pole of the
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MCQs: Most of the electric appliances get energy from
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MCQs: Air and water can conduct electricity only, when they contain
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