physics

Given two particles with 2.00 micro coulomb charges as shown and a particle with a charge q=1.28x16-18C at the origin. (A)What is the net force exerted by the two 2.00 micro coulomb charges on test charge q? (B)What is the electric field at the origin due to the two 2.00micro coulomb particles? (C)What is the electric potential at the origin due to the two 2.00micro coulomb particles?

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1. You did not provide the "as shown" figure and also wrote the charge of q incorrectly.

This problem requires an adding up of the electric fields or potentials due to each particle, for which you need to know the locations of the 2 uC charges. You should be able to do this yourself. We are here to teach and explain, not to do your homework for you.

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2. i know the answers to parts a and b the answer is simple if you consider the directions of the forces. however for part c does potential at origin simply equal the potential from one charge doubled. V = 2(k)(q-particle)/r?

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