An infinite plane of charge has surface charge density 7.2 î¼c/m^2. how far apart are the equipotential surfaces whose potentials differ by 100 v?

so the distance between two points are

Explanation:

Surface charge density of the charged plane is given as

now we have electric field due to charged planed is given as

now we have

now for the potential difference of 100 Volts we can have the relation as