Three point charges are located on the positive x-axis of a coordinate system. Charge q1 = +1.0nC is 4.0cm from the origin, charge q2 = -3.0nC is 6.0cm from q1 and charge q3 = 5.0nC located at the origin. Solve for the following: a. What is the total force exerted by these three charges on a charge q4 = -4.0nC located midway between q1 and q2? b. If q4 is moved 3cm to the right of q2, what is the total force exerted by these three charges on q4?

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.