Inside (d<R)
Magnetic field inside conductor
B=Kd..(i)
This is straight line passing through origin
At surface (d=R)
B=2πμ0d1
Maximum at surface
Outside (d>R)
B=2πμ0d1
or B∝d1 ∴ Hyperbolic
Hence the correct option is (B)
NEET UG 2019 — Physics Electromagnetism
2019mcqmedium
A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field B with the distance d from the centre of the conductor is correctly represented by the figure.
Official previous-year question
Held on 30 Apr 2019 · Verified 9 Jul 2026.
Options
- A
- B
- C
- D
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