Two identical isolated poles are separated by a distance of 3mm along a vertical line are at equilibrium. If the mass of each pole 50gr-wt Then pole strength of each is
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a
6.64amp x m
b
2amp x m
c
10.25amp x m
d
None of these
answer is A.
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Detailed Solution
μ04π6M2d4=mg 10-7 x 6M20.3 x 10-24=50 x 10-3 x 9.8, m=M2l m=6.64 Am