Question

On the equatorial line of a bar magnet, at any point, the magnetic field perpendicular to the axial line is:

• A. $\frac{{\mu }_0}{4\pi }\frac{2M}{d^3}$
• B. Infinity
• C. $\frac{{\mu }_0}{4\pi }\frac{M}{d^3}$
• D. Zero

Answer 1

The correct option is D Zero

On the equatorial line of a bar magnet , the magnetic field is parallel to the axial line , so the perpendicular component is zero.