TS EAMCET · Physics · Current Electricity
Balancing point of a potentiometer shifts from a length of to by shunting the cell with a resistance. What is the internal resistance of the cell?
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
In first case EMF of the cell s balanced against potentiometer setup. Assuming potential gradient to be α, we can write ε=α×0.6 ...Eq1 For the second case, potential drop across the cell is measured, therefore, we can write,…
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