Question

3 V potentiometer
used for the
determination
of internal
resistance of a
2.4 V cell. The
balance point of
1.6 V
10.2 2
the cell in open
circuit is 75.8 cm.
When a resistor of 10.2 2 is used in the external
circuit of the cell the balance point shifts to 68.3 cm
length of the potentiometer wire. The internal
resistance of the cell is
(a) 2.52
(b) 2.252
(c) 1.122
(d) 3.222
​

Answer 1

Explanation:

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