TS EAMCET 4 May 2018 Shift 1 Solved Paper

A bar magnet of magnetic moment M is placed at a distance D with its axis along positive X-axis. Likewise, second bar magnet of magnetic moment is placed at a distance 2D on positive Y-axis and perpendicular to it as shown in the figure. The magnitude of magnetic field at the orisin is |

→

B

| = α [

µ0M

4πD3

] . The value of a must be
(Assume D ≫ l where l is the length of magnets)