Question

The pole strength of a 12 cm long bar magnet is 20 Am. The magnetic induction at a point
10 cm away from the centre of the magnet on its acial line is
= 10-Hm​

Answer 1

Answer:

Follow M-

Explanation:

The pole strength of 12 cm long bar magnet is 20 A m having Magnetic moment 20 × 0.12Am2. The magnetic induction at a point 10 cm away from the  of the magnet on its axial line is [4πμ0 = 10−7H m−1