Electric Potential Video Lessons

Concept

# Problem: A 2.5mm -diameter glass bead is positively charged. The potential difference between a point 2.5mm from the bead and a point 4.2mm from the bead is 500 V. Part A What is the charge on the bead?

###### FREE Expert Solution

The potential due to charge:

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

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###### Problem Details

A 2.5mm -diameter glass bead is positively charged. The potential difference between a point 2.5mm from the bead and a point 4.2mm from the bead is 500 V.

Part A What is the charge on the bead?