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The Net Electric Field

Question: Two charges, -18 and +4.0 microcoulombs, are fixed in place and separated by 3.0 meters. At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge. Let the positive charge be at x=0 and the negative charge be at x=3.0 meters. Make sure the answer is i

Elecrostatic force

An equilateral triangle has sides of 0.12 meters. Charges of -8.6, +8.0 and +1.6 micro Coulombs are located at the corners of the triangle. Find the magnitude of the net electrostatic force exerted on the 1.6 micro Coulomb charge.

Electrostatic Force

If the electrostatic force between two protons is equal to 1X10^-7 Newtons, what is the distance between them?

Electricity Problem

Two identical +7.5e-6 point charges are intially spaced 5.5cm from each other. If they are realesed at the same instant from rest, how fast will they be moving when they are very far away from each other? Assume they have identical masses of 1.0 mg.


A certain charge Q is divided into two parts q and Q-q. How the charges Q and q must be related so that when q and (Q-q) placed at a certain distance apart experience maximum electrostatic repulsion.