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 t

Question

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.NEET 2019 (All India)

TestHub · Accepted Answer

Inside ( d < R ) Magnetic field inside conductor B = Kd . . ( i ) This is straight line passing through origin At surface ( d = R ) B = μ 0 2 π 1 d Maximum at surface Outside ( d > R ) B = μ 0 2 π 1 d or B ∝ 1 d ∴ Hyperbolic Hence the correct option is (B)

Physics - Magnetism Question with Solution | TestHub

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