JEE Main 2022 · 25 Jul · Shift 2 · Physics Q55

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PhysicsInteger+4 / -1Question 55 of 90

In a potentiometer arrangement, a cell of emf 1.20 V gives a balance point at 36 cm length of wire. This cell is now replaced by another cell of emf 1.80 V. The difference in balancing length of potentiometer wire in above conditions will be ______ cm.

Your answer

Answer and worked solution

Official answer: 18

New length $36\times\frac{1.8}{1.2}=54$ cm: difference 18 cm.

Answer: 18

Topics:Potentiometer

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JEE Main 2022 · 25 Jul · Shift 2, Physics question 55