CBSE Class 10 Science 2019 · Paper 31/3/2 · Question 1
When do we say that the potential difference between two points of a circuit is 1 volt ?
Answer
It is 1 volt when 1 joule of work is done to move 1 coulomb of charge between the two points.
The potential difference between two points of a current-carrying circuit is volt when joule of work is done to move a charge of coulomb from one point to the other: .
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