Question

5. Four point-like charges are placed as shown in the figure, three of them are at the corners and one at the center of a square, 36.0 cm on each side. Find the magnitude of the net electrostatic force exerted on the point charge q4-Let q-q3 = +26.0 џС q2 = 42.0p«C, and q4--43.0џс. 42 43 4 91

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Answer #1

Since, F14 and F34 are equal and opposite, so they will cancel out each other.

Only F24 will be acting.

Force, Fnet = k q2 q4/r^2

Fnet = (9 x 10^9)(42 x 43 x 10^-12)/(0.36^2/2)

Fnet = 250.83 N

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