A point charge of is located at the origin. What is the magnitude of the electric field at a point away from the charge? Take .
A charge is uniformly distributed throughout a nonconducting solid sphere of radius . What is the magnitude of the electric field at a distance from the center?
A long cylindrical conductor of radius carries a total charge per unit length . What is the magnitude of the electric field a distance from the axis of the cylinder?
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Every multiple-choice question, Section 2 with space to write, and the answer key.