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Ohm's Law in Scalar Form

The terminal ...

Question

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

A

being charged

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B

an open circuit

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C

being discharged

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D

None of the above

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Solution

The correct option is C being charged
When the cell in being charged Terminal voltage $= E + i r$
$\Rightarrow E + i r > E$

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

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

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.

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

Q. If a non ideal cell of emf

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