What is a null point in a potentiometer?

A null point in a potentiometer is known as a balancing point.

It is the point on the slide wire on which the deflection in the galvanometer is zero.
When the galvanometer detects a current where the deflection is zero, no current flows through the cell.
Therefore, zero deflection means no current is flowing through the galvanometer.

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CBSE CLASS XII Related Questions

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A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.
2.
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Read the following paragraph and answer the questions that follow.
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