1.

Charge Q is spread uniformly along the circumference of a circle of radius R. A point particle with charge q is placed at the center of this circle. The total force exerted on the particle can be calculated by Coulomb’s law: A. just use R for the distance B. just use 2R for the distance C. just use 2πR for the distance D. the result of the calculation is zero E. none of the above

Answer»

D. the result of the calculation is zero



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