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(a) State four factors on which the resistance of a conductor depends.(b) A piece of wire of resistance 20 Ω is drawn out so that its length is increased to twice its original length. Calculate the resistance of the wire in the new situation. |
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Answer» (a) State four factors on which the resistance of a conductor depends. (b) A piece of wire of resistance 20 Ω is drawn out so that its length is increased to twice its original length. Calculate the resistance of the wire in the new situation. |
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