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Questions and Answers
What is the principle of a potentiometer?
The principle of a potentiometer is that the potential difference across a wire of uniform cross-section and material is directly proportional to its length.
Explain Kirchhoff's first law of current?
Kirchhoff's first law states that the total current entering a junction is equal to the total current leaving the junction.
How can you find the internal resistance of a cell using a potentiometer?
The internal resistance of a cell can be found by balancing the potential drop across the cell with the potential drop across an external resistor using a potentiometer.
