Question

The magnetic field on the axis at a distance $z$ from the centre of the bar magnet would be?

• A. In the direction of the magnetic dipole moment $\left(\overset{ \rightarrow }{M}\right)$ of the magnet
• B. In the opposite direction of the magnetic dipole moment $\left(\overset{ \rightarrow }{M}\right)$ of the magnet
• C. In the perpendicular direction of the magnetic moment $\left(\overset{ \rightarrow }{M}\right)$ of the magnet
• D. Its direction depends on the magnitude of the magnetic moment $\left(\overset{ \rightarrow }{M}\right)$ of the magnet

Answer 1

Answer: (A)

Magnetic field on the axis is in direction of magnetic dipole moment