Mention the condition under which charges can move in a conductor. Name the device which is used to maintain this condition in an electric circuit.
Mention the condition under which charges can move in a conductor. Name the device which is used to maintain this condition in an electric circuit.
Charges can move, if there is a potential difference across the two ends of the conductor. Electric cell or a battery consisting of one or more cells can maintain an electric current in an electric circuit.
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If five equal pieces of wire having $5\, \Omega$ resistance are made and connected in parallel, then their equivalent resistance will be $......$
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