Question

Why Earth's potential is taken zero and what is meant by it ?

Answer 1

By convention, the electrostatic potential of earth is taken to be 0. It is considered that earth is a storehouse of infinite negative charge. So, most points are at a positive potential w.r.to it. ... It is considered that earth is a storehouse of infinite negative charge.

Answer 2

Answer:

earth is considered as store house of the negativity charges and by convention the earth electrostatic potential is taken 0