Question

10. Two magnetic poles one of which is 4 times as strong as the other exert a force of 64 mg.wt. Whe
placed 10cm apart in air. Strength of the poles are (g = 10ms )
1) 3A-m and 12Am
2) 4A-m and 16Am
3) 5Am and 20Am
4) 6Am and 10 Am
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Answer 1

Answer:

two magnetic poles one of which is 4 Times as strong as the other expert a force of 64 mg.vvt when placed 10 cm apart in air strength of the poles are (g=10ms) a)3A-mand 12Am and b) 4 A- mand 16 A m c) Am and 20 Am d) 6 Am and 10 Am