A cell is balanced at 100 cm of a potentiometer wire when the total length of the wire is 400 cm. If the length of the potentiometer wire is increased by 100 cm, then the new balancing length for the cell will be (Assume pd across potentiometer wire is constant)
Text Solution
Verified by ExpertsThe correct answer is:
B
L α λ
L → total length
λ → balanced length
= 
⇒ λ 2 = 125 cm
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