Question

Ratio of magnetic intensities for an axial point and a point on broad side-on position at equal distance d from the centre of magnet will be or The magnetic field at a distance d from a short bar magnet in longitudinal and transverse positions are in the ratio

• A. 1 : 1
• B. 2 : 3
• C. 2 : 1
• D. 3 : 2

Answer 1

Answer: (C)

2 : 1

Answer 2

$B _ { 1 } = \frac { 2 M } { d ^ { 3 } } \cdot B _ { 2 } = \frac { M } { d ^ { 3 } } ; \therefore \frac { B _ { 1 } } { B _ { 2 } } = 2 : 1$