charge of three column is moved by spending 18 joules of energy process and potential difference the potential difference of the path is
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Potential difference is the work done per unit charge.
A potential difference of 1 V means that 1 joule of work is done per coulomb of charge. ( 1 V = 1 J C-1) Potential difference in a circuit is measured using a voltmeter which is placed in parallel with the component of interest in the circuit.
Explanation:
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