Question

2 The effective length of a magnet is 31.4 cm and its pole strength is 0.8 Am.The magnetic moment, if it is bent in the form of a semicircle is Am.
A) 1.6
(B) 1.2
(C) 0.16
(D) 0.12​

Answer 1

Answer:

The effective length of magnet = 31.4 cm Pole strength m = 0.8 Am Length of semi - circle = π D2 = l where, D = diameter of circle D = 2lm = 2 × ... ·

Answer 2

0.16. please mark me as brainliest