A 10 m potentiometer wire is attached to a battery with a steady voltage. A leclanche cell is balanced on 4 m wire. With same length, but doubled cross-section, find null point.

Considering that the length of the potentiometer is same, the null point will be acquired at some point due to the fact that the potential gradient will not change.

Therefore, Potential gradient = V/L

Here,

V = Voltage (Potentiometer)
L = Length (Potentiometer)

Hence, the null point won’t alter and will be acquired at 4m.

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A 10 m potentiometer wire is attached to a battery with a steady voltage. A leclanche cell is balanced on 4 m wire. With same length, but doubled cross-section, find null point.

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.

6.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

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A 10 m potentiometer wire is attached to a battery with a steady voltage. A leclanche cell is balanced on 4 m wire. With same length, but doubled cross-section, find null point.

Related Questions

CBSE CLASS XII Related Questions

1.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.

6.Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
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.

6.
Consider the nuclear reaction \( X \to Y + Z \). Let \( M_x \), \( M_y \), and \( M_z \) be the masses of the three nuclei X, Y, and Z respectively. Then which of the following relations hold true?