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Q. Compare the emf and the potential difference. Comparison of emf and potential difference
1. The difference of potentials among the two terminals of a cell in an open circuit is called the electromotive force (emf) of a cell. The difference in potentials among any two points in a closed circuit is called potential difference.
2. The emf is independent of exterior resistance of the circuit whereas potential difference is proportional to the resistance between any two points.
A person is determining the description of the image formed by a converging lens by implies of a ray tracing diagram. The person has gotten so far as drawing one principal ray. Wha
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Potential difference: When charges move from one point to another, it is not the actual values of potential at those points which are Important, but the potential different (pd
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