In which of the following situations is the electric field the strongest?

Question

Quizplus · Accepted Answer

The electric field strength due to a point charge is given by the equation E=kq/r^2, where k is Coulomb's constant, q is the charge, and r is the distance from the charge. In this case, at a distance of 1m, the electric field strength due to the point charge is E=k(1C)/1m^2=kC/m^2. The electric field due to other options can be calculated using similar equations, but the electric field strength due to a point charge decreases more rapidly with increasing distance than the other options. Therefore, the electric field is strongest at the point closest to a point charge, which is option A.

In Which of the Following Situations Is the Electric Field