NEET UG 2025 · Physics · Question 28
NEET 2025 Physics, question 28
Question 28 of the NEET 2025 paper (code 45) is a Physics question from Electric Charges and Fields. Its idea, Force After Conductor Contact, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q28 · Physics
Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is q and the force of repulsion between them is F. A third identical uncharged conducting sphere is brought in contact with sphere A first and then with B and finally removed from both. New force of repulsion between spheres A and B (Radii of A and B are negligible compared to the distance of separation so that for calculating force between them they can be considered as point charges) is best given as :
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- 4Official answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Force After Conductor Contact
No other NEET paper from 2017–2026 tested this exact idea.
Force After Conductor Contact: every question and how it was framed
The chapter
Electric Charges and Fields in ten years of NEET
14 questions from 2017–2026, asked in 9 of 10 papers, about 1.4 a paper. Coulomb's Law alone had 9.