NEET UG 2017 · Physics · Question 29
NEET 2017 Physics, question 29
Question 29 of the NEET 2017 paper (code A) is a Physics question from Moving Charges and Magnetism. Its idea, Force on Central Parallel Wire, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 4.
Updated 2026-10-08
Q29 · Physics
An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current 'I' along the same direction is shown in Fig. Magnitude of force per unit length on the middle wire 'B' is given by :
The figure, described in words
Wires A, B, C (currents out of page): B at the corner, C at distance d to the right of B, A at distance d below B; angle ABC = 90°.
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- 4Official answer
Official answer: option 4 · CBSE official answer key
Same idea
The only question on Force on Central Parallel Wire
No other NEET paper from 2017–2026 tested this exact idea.
Force on Central Parallel Wire: every question and how it was framed
The chapter
Moving Charges and Magnetism in ten years of NEET
22 questions from 2017–2026, asked in 10 of 10 papers, about 2.1 a paper. Ampere's Circuital Law alone had 8.