Question

what is electric potential difference????

Answer 1

We can use electric field vector to characterize static electric field in space. By observing the movement of charged particles inside an electric field, one can predict the exact characteristics of that field. If the field is strong enough, the deflection of a charged particle in a parabolic path will be sharper and if the field is weak, deflection is less. But it is not the practical way of measuring the intensity of an electric field. Another physical quantity is there which is much easier to measure and also used to characterize an electric field, and this quantity is known as electric potential difference.