Calculate the Potential Difference Between the Two Terminals of a Battery If 100 Joules of Work is Required to Transfer 20 Coulombs of Charge from One Terminal of the Battery to the Other. - Science

Numerical

Calculate the potential difference between the two terminals of a battery if 100 joules of work is required to transfer 20 coulombs of charge from one terminal of the battery to the other.

Solution

In the given problem:

Work, W =100 J

Charge, Q = 20 C

W = QV

∴ V = W/Q=100/20 = 5V

Therefore, the potential difference between the two terminals of a battery is
5 V.

Concept: Electric Potential (Electrostatic Potential) and Potential Difference
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