A large magnet is broken into two pieces so that their lengths are in the ratio 2:1. The pole strengths of the two pieces will have the ratio
A. 2 : 1
B. 1 :2
C. 4 : 1
D. 1 : 1
Answer:A
A large magnet is broken into two pieces so that their lengths are in the ratio 2:1. The pole strengths of the two pieces will have the ratio
A. 2 : 1 B. 1 :2 C. 4 : 1 D. 1 : 1