At a distance D from a very long (essentially infinite) uniform line of charge, the electric field strength is 1000 N/C. At what distance from the line will the field strength to be 2000 N/C?

Question

Quizplus · Accepted Answer

The electric field strength is inversely proportional to the distance from the charge line. So, if the field strength is doubled to 2000 N/C, the distance from the line must be halved. Therefore, the new distance from the line is D/2, which is option D.

At a Distance D from a Very Long (Essentially Infinite)