physics / Fields & Forces / free
Electric Potential
Turn a force field into an energy landscape that charges can move through.
an energy landscape for chargeV = U/q · E = −∇V
The asterisks mark scaled units. The important distinction is structural: V tells energy per charge, while E tells force per charge and has direction.
source charge60%
potential V12.5 V*
field strength2.6 E*
A test charge's potential energy is qV. The potential map can be calculated before choosing the charge that will move through it.
04 / PRACTICE
0 / 3 checkedMake the idea yours.
Use the model, then answer without looking back. Each check isolates one decision a learner should be able to make after this lesson.
CHECK 1 / 3