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The Flow of Electrons as Electric Current

The emf of a ...

Question

The emf of a cell is always greater than its terminal voltage Why? Give reason.

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Solution

The emf of a cell is greater than its terminal voltage because there is some potential drop across the cell due to its small internal resistance.

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Similar questions

Give reasons why the terminal voltage is less than the emf of a cell.

Q. In the question given below, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements mark the correct answer.

Assertion (A): Terminal voltage of a cell is greater than emf of the cell, during charging of the cell.

Reason (R): The emf of a cell is always greater than its terminal voltage.

Q. The terminal voltage of a cell is greater than its e.m.f. when it is:

Q. Assertion :Voltmeter always gives emf of a cell if it is connected across the terminals of a cell. Reason: Terminal potential of a cell is given by

V = E - i r

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Q. The terminal voltage of a cell in open circuit condition is ______ its emf.

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