A small ball is located at the origin and has as charge of +3.9 nC. At a distanc

Question

A small ball is located at the origin and has as charge of +3.9 nC. At a distance of 5.8 cm the electric field has a magnitude of 10422 N/C. What is the direction of the electric field, away or toward the ball? B. What is the electric field magnitude at a point located at 17.4 cm from the ball? C. If you plugged new numbers into Coulomb's Law to answer part (b) you took the hard route. Consider a new situation. At a distance r1 you find an electric field of magnitude E1. What is the electric field at a point located at r2 = 3r1? Answer in terms of r1, E1, and numeric constants.

Explanation / Answer

direction is away from the ball magnitude=3.9*10^-9*10422*17.4/100=7.07*10^-6

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