Potentiometer: JEE Questions & Solutions
8 previous-year JEE Physics questions on Potentiometer, each with a worked step-by-step solution.
Previous-year questions
- 01
To compare the EMF of two cells using a potentiometer, the balancing lengths obtained are 200 cm and 150 cm. The least count of the scale…
MCQMediumJEE 2026 - 02
In the potentiometer, when the cell in the secondary circuit is shunted with 4 Ω resistance, the balance is obtained at a length 120 cm of…
MCQMediumJEE 2026 - 03
In a moving coil galvanometer, two moving coils M₁ and M₂ have the following particulars: R₁ = 5 Ω, N₁ = 15, A₁ = 3.6 × 10⁻³ m², B₁ = 0.25…
MCQMediumJEE 2025 - 04
The deflection in a moving coil galvanometer falls from 25 divisions to 5 divisions when a shunt of 24 Ω is applied. The resistance of the…
MCQEasyJEE 2024 - 05
With the help of a potentiometer, we can determine the value of the emf of a given cell. The sensitivity of the potentiometer is (A)…
MCQEasyJEE 2023 - 06
A null point is found at 200 cm in a potentiometer when the cell in the secondary circuit is shunted by 5 Ω. When a resistance of 15 Ω is…
NVAMediumJEE 2023 - 07
In an experiment to find emf of a cell using potentiometer, the length of null point for a cell of emf 1.5 V is found to be 60 cm. If this…
NVAEasyJEE 2023 - 08
For designing a voltmeter of range 50 V and an ammeter of range 10 mA using a galvanometer which has a coil resistance 54 Ω and shows…
MCQEasyJEE 2023
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