In a potentiometer experiment, if the balancing length is found to be 4m for a c

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Question: In a potentiometer experiment, if the balancing length is found to be 4m for a cell of unknown EMF, what is the EMF if the potential gradient is 3 V/m?

Options:

6 V
8 V
12 V
15 V

Correct Answer: 12 V

Solution:

EMF = Potential Gradient × Balancing Length = 3 V/m × 4 m = 12 V.

In a potentiometer experiment, if the balancing length is found to be 4m for a c

Practice Questions

In a potentiometer experiment, if the balancing length is found to be 4m for a cell of unknown EMF, what is the EMF if the potential gradient is 3 V/m?

6 V
8 V
12 V
15 V

Questions & Step-by-Step Solutions

In a potentiometer experiment, if the balancing length is found to be 4m for a cell of unknown EMF, what is the EMF if the potential gradient is 3 V/m?

Step 1: Understand that the EMF (Electromotive Force) of a cell can be calculated using the formula: EMF = Potential Gradient × Balancing Length.
Step 2: Identify the values given in the problem. The potential gradient is 3 V/m and the balancing length is 4 m.
Step 3: Substitute the values into the formula: EMF = 3 V/m × 4 m.
Step 4: Perform the multiplication: 3 V/m × 4 m = 12 V.
Step 5: Conclude that the EMF of the cell is 12 V.

Potentiometer Principle – The relationship between EMF, potential gradient, and balancing length in a potentiometer setup.
Potential Gradient – The rate of change of potential per unit length along the wire.
Balancing Length – The length of the wire at which the potential difference equals the EMF of the cell being measured.

In a potentiometer experiment, if the balancing length is found to be 4m for a c

What’s inside this PDF?

In a potentiometer experiment, if the balancing length is found to be 4m for a c

Practice Questions

Questions & Step-by-Step Solutions

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