Question

what is the differenc ebetween voltage and electrical potential ? is voltage and potential are same ?

Answer 1

Electrical potential is the energy per unit charge gained or lost when a charge is moved from some reference point at which the potential is defined to be zero.

Voltage is the difference in potential between two arbitrary points at which the potential is not necessarily zero.

For example, the potential at point A relative to a defined reference point (sometimes an infinite distance away) might be 10000 volts, and the potential at point B might be 10100 volts. Then the voltage between B and A is 100 volts.

While they represent the same type of quantity, they have slightly different connotations.