Question

A2 V potentiometer is used to determine the internal resistance of a 1.5 V cell, the balance point of the cell in the open circuit is 75 cm. When a resistor of 10 Q is connected across the cell, the balance point shifts to 60 cm. The internal resistance of the cell is
1.5 Ω
2.5 Ω
3.5 Ω
4.5​

Answer 1

Answer:

3.5

Explanation:

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Answer 2

Please refer to the given attachment.

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