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प्रश्न
All wires used in electric circuits should be covered with
विकल्प
colouring material
conducting material
an insulating material
none of the above
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उत्तर
an insulating material
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संबंधित प्रश्न
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Fuse wire is an alloy of
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According to the old convention, the colour of the earth wire is ______.
Name the colour code of the wire which is connected to switch for the appliance.
