Work From Electric Force Video Lessons

Concept

# Problem: In which case does an electric field do positive work on a charged particle?a. A negative charge moves opposite to the direction of the electric field.b. A positive charge completes one elliptical path around a stationary positive charge.c. A positive charge is moved to a point of higher potential energy.d. A positive charge completes one circular path around a stationary positive charge.

###### FREE Expert Solution

The work done by an electric field on a charged particle is given by:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{q}}{\mathbf{E}}{\mathbf{d}}}$, where q is the charge, E is the electric field, and is the displacement.

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###### Problem Details

In which case does an electric field do positive work on a charged particle?
a. A negative charge moves opposite to the direction of the electric field.
b. A positive charge completes one elliptical path around a stationary positive charge.
c. A positive charge is moved to a point of higher potential energy.
d. A positive charge completes one circular path around a stationary positive charge.