Physics · 2023
JEE Main · 29 January 2023, Shift 2 · Q25
A null point is found at 200 cm in potentiometer when cell in secondary circuit is shunted by 5 Ω. When a resistance of 15 Ω is used for shunting,…
A null point is found at $\displaystyle 200$ cm in potentiometer when cell in secondary circuit is shunted by $\displaystyle 5 \Omega$. When a resistance of $\displaystyle 15 \Omega$ is used for shunting, null point moves to $\displaystyle 300$ cm. The internal resistance of the cell is $\displaystyle \_\_\_\_ \Omega$.
Official answer
From NTA’s final answer key for this paper.
5
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.