Three point-like charges are placed at the corners of a rectangle as shown in the figure,...
Three point-like charges are placed at the corners of a rectangle as shown in the figure, a = 38.0 cm and b = 56.0 cm. What is the electric potential at the center of the rectangle? Let q1 = q3 = +24.0 µC and q2 = −42.0 µC.
Homework Answers
V = sum ( k q / r)
where k is coulombs constant.
using pythag.
C = sqrt ( a^2 + b^2)
= sqrt( 28 ^ 2+ 19 ^2)
= 33.84 cm ( 0.3384 m)
As all the distances are the same
V = k (q1+q2+q3)/0.08
= k * 6 * 10 ^ -6 / 0.08
and k is 9* 10^9
= 675000 v
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