The unit for electric field, N/C, can be written equivalently as
A) V/m.
B) C/V.
C) V/C.
D) m/V.
E) V.

Question

Quizplus · Accepted Answer

The electric field is defined as the force per unit charge experienced by a test charge placed in the field. This can be expressed as E = F/Q. Using the equation for electric potential, V = W/Q, where W is the work done in moving the charge against the electrostatic force, and taking the negative gradient of the potential gives the electric field as E = -dV/dx. Therefore, the units of electric field are N/C, which can also be written as V/m.

The Unit for Electric Field, N/C, Can Be Written Equivalently