Physics · 2026
JEE Main · 24 January 2026, Shift 2 · Q46
A point charge q=1 μ C is located at a distance 2 cm from one end of a thin insulating wire of length 10 cm having a charge Q=24 μ C, distributed…
A point charge $\displaystyle q=1 \mu \mathrm{C}$ is located at a distance $\displaystyle 2$ cm from one end of a thin insulating wire of length $\displaystyle 10$ cm having a charge $\displaystyle Q=24 \mu \mathrm{C}$, distributed uniformly along its length, as shown in figure. Force between $\displaystyle q$ and wire is $\displaystyle \_\_\_\_$ N.
(Use : $\displaystyle \frac{1}{4 \pi \epsilon_{\mathrm{o}}}=9 \times 10^9 \mathrm{~N} . \mathrm{m}^2 / \mathrm{C}^2$ )

Official answer
From NTA’s final answer key for this paper.
90
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.