Figure 3.35 shows a 2.0 V potentiometer used for the determination of internal resistance of a 1.5 V cell. The balance point of the cell in open circuit is 76.3 cm. When a resistor of 9.5 2 is used in the external circuit of the cell, the balance point shifts to 64.8 cm length of the potentiometer wire. Determine the internal resistance of the cell. 20V A B 1.5 V 9.50
Figure 3.35 shows a 2.0 V potentiometer used for the determination of internal resistance of a 1.5 V cell. The balance point of the cell in open circuit is 76.3 cm. When a resistor of 9.5 2 is used in the external circuit of the cell, the balance point shifts to 64.8 cm length of the potentiometer wire. Determine the internal resistance of the cell. 20V A B 1.5 V 9.50
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Transcribed Image Text:Figure 3.35 shows a 2.0 V potentiometer used for the determination of internal
resistance of a 1.5 V cell. The balance point of the cell in open circuit is 76.3 cm. When a
resistor of 9.5 2 is used in the external circuit of the cell, the balance point shifts to 64.8
cm length of the potentiometer wire. Determine the internal resistance of the cell.
2.0 V
B
1.5 V
9.52
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