Two isolated point poles of strength 30 A-m and 60 A-m are placed at a distance of 0.3 m. The force of repulsion between them is
A. 2 × 10-3 N
B. 2 × 10-4 N
C. 2 × 105 N
D. 2 × 10-5 N
Answer:A
Two isolated point poles of strength 30 A-m and 60 A-m are placed at a distance of 0.3 m. The force of repulsion between them is
A. 2 × 10-3 N B. 2 × 10-4 N C. 2 × 105 N D. 2 × 10-5 N