In the figure below, each charged particle is located at one of the four vertices of a square with side length = a. In the figure, A = 5, B = 4, and C = 8, and q > 0. Aq Bq Cq a (a) What is the expression for the magnitude of the electric field in the upper right corner of the square (at the location of g)? (Use the following as necessary: q, a, and k-) E = Give the direction angle (in degrees counterclockwise from the +x-axis) of the electric field at this location. • (counterclockwise from the +x-axis) (b) Determine the expression for the total electric force exerted on the charge q. (Enter the magnitude. Use the following as necessary: q, a, and k.) F = Give the direction angle (in degrees counterclockwise from the +x-axis) of the electric force on q. • (counterclockwise from the +x-axis)

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Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.