Question

Two large parallel metal plates carry opposite charges. They are separated by 0.20 m and the p.d. between them is 500 V. What is the magnitude of electric field, if it is uniform, in the region between them.​

Answer 1

Hi there!

We can use the following relationship between the Potential Difference and the Electric field:

$V = E d$

V = Potential Difference (500V)
E = Electric Field (V/m)
d = separation between plates (0.2 m)

We can rearrange the equation to solve for the electric field:
$E = \frac{V}{d}$

Plug in the given values.

$E = \frac{500}{0.2} = \boxed{2500 \frac{V}{m}}$