When one coulomb of charge flows through any section of a conductor in one second, then current constituted by it is one ampere.
1A = 1 Cs–1
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Calculate the number of electrons constituting one coulomb of charge.
Charge on one electron, e = 1.6 x 10–19 C
Total charge, Q = 1 C
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What is meant by saying that the potential difference between two points is 1 V?
The potential difference between two points is 1 volt when, one joule of work is done in moving one coulomb of positive charge from one point to the other point.
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