Consider the dipole in the Figure with Q = 86 ?C. A point
particle of charge 8 ?C is placed at location B, and the magnitude
of the electric force on this particle is found to be 1 N. Find the
magnitude of L.
Homework Answers
Given the net force at B is , F=1 N
Distance between B and Charge is r = sqrt (L^2+1^2)
Net Force at B = (Kq1q2/r^2+kq1q2/r^2) sin 60
F = 2kq1q2/(1+L^2) = 1
1+L^2 = 2kq1q2
1+L^2 = 2*9*10^9*86*86*10^-12
1+L^2 = 133.128
L = 11.494 m
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