The sum of two points charges is 7 micro c they repel each other with a force of 1N when kept 30 cm apart in free space . Calculate the value of each charge.
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Fe = q1q2
1 = 9*104*q1q2/0.52
1 = 9*109/9*10-3
q1q2 =16
given
q1q2= 7rc
on solving q1 = qmc
q2 = 50c
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