The magnetic induction field strength due to a short bar magnet at a distance 0 . 20 m on the equatorial line is 20 × 10 - 6 T . The magnetic moment of the bar magnet is

Question

The magnetic induction field strength due to a short bar magnet at a distance 0 . 20 m on the equatorial line is 20 × 10 - 6 T . The magnetic moment of the bar magnet is, 3.2 A m 2, 6.4 A m 2, 1.6 A m 2, 16 A m 2

MARKS App · Accepted Answer

B = μ 0 4 π M d 3 20 × 10 - 6 = 10 - 7 × M 8 × 10 - 3 M = 1.6 × 10 - 7 10 - 7 = 1. 6 A m 2

Search any question & find its solution

Looking for more such questions to practice?