Physics, asked by aaroohiirooh, 8 months ago

explain how to potentiometer is used to compare emf two cells with suitable circuit dia

Answers

Answered by swarangi2710

4

Answer:

Comparison of emfs of two primary cells: The circuit diagram is shown in the figure. When the key K is closed, a constant current flows the potentiometer wire. ... Hence, by increasing the length of a potentiometer's wire the sensitivity of a potentiometer can be increased.

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