T KLA D A B C N KETPM Three corners of a rectangle each have charges as shown below. The height of the rectangle is 3.000 cm, the width is 4.000 cm, and the corner missing a charge is point P. A) What is the magnitude and direction of the electric field at point P due to charges Q1, Q2, and Q3? B) What is the Electric Potential at point P due to charges Q1, Q2, and Q3? C) What is the Electric Potential Energy of this arrangement of four charges? A fourth charge, Q4 +1.000 μC, is now moved into position at point P.

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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.