Electric Potential Video Lessons

Concept

# Problem: A single point charge in vacuum has imaginary equipotential surfaces around it which are spherical due to the symmetry of the situation. Assume we have a charge q = 2.5x10-10 C and such a surface with potential V = 38 V.Part (a) Input an expression for the radius for this surface, r, in terms of the given quantitiesPart (b) What is the radius, in meters?Part (c) What is the radius, in meters, if a 10,000 V equipotential surface?

###### FREE Expert Solution

(a)

Electric potential:

$\overline{){\mathbf{V}}{\mathbf{=}}\frac{\mathbf{k}\mathbf{Q}}{\mathbf{r}}}$

96% (60 ratings)
###### Problem Details

A single point charge in vacuum has imaginary equipotential surfaces around it which are spherical due to the symmetry of the situation. Assume we have a charge q = 2.5x10-10 C and such a surface with potential V = 38 V.

Part (a) Input an expression for the radius for this surface, r, in terms of the given quantities

Part (b) What is the radius, in meters?

Part (c) What is the radius, in meters, if a 10,000 V equipotential surface?