The electric field around an isolated electron has a certain strength 1 cm from the electron. The electric field strength 2 cm from the electron is
A)half as much.
B)the same.
C)twice as much.
D)four times as much.
E)none of the above

Question

Quizplus · Accepted Answer

The electric field strength due to a point charge decreases with the square of the distance from the charge. Therefore, at 2 cm, the field strength is (1/2)^2 = 1/4 of the strength at 1 cm.

The Electric Field Around an Isolated Electron Has a Certain