current-electricity Question 52
Question: Q. 4. Draw a circuit for determining internal resistance of a cell using a potentiometer. Explain the principle on which this method is based.
U] [SQP II 2017]
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Solution:
Ans.
(ii) If key
If key
On dividing equation (i) by (ii)
where,
[CBSE Marking Scheme, 2017]