Choose the correct statement: - Vidyadip

MCQ

Choose the correct statement:

A
The potential difference between the terminals of a cell in closed circuit is called EMF of the cell.
B
Electromotive force and accelerating force have the same dimensions.
C
The internal resistance of an ideal cell is infinity.
D
The difference between the emf of a cell and potential difference across the ends of the cell is called lost volts.

✓

Answer

The difference between the emf of a cell and potential difference across the ends of the cell is called lost volts.

Explanation:

When the battery is discharging, the terminals voltage of the battery is always $≤$ Emf of cell $[∵\text{r}>0]$

$\therefore$ There will always be a difference which is defined to be lost volt.

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