Question

Which of the following is not a unit for electric potential?
A. Volt
B. Joule/coulomb
C. Erg/stat coulomb
D. None of these

Answer 1

Electric potential is the work done in moving a unit electric charge from a reference point to a point of focus. It is a key property of charges or stream of charges in an electric field.

Complete step by step answer:
Electric potential is literally measured in voltage or potential difference with the symbol V as the source of its measurement. Protons which are positive entities can also be accessed for electric potential property except for neutrons which are neutral and carry no level or value of charge or charges, electrons are basically responsible for electric potential because of course they form from currents which are in motion in and out.
Actual units of electric potential are Volts.
The unit of electric potential can be traced to its formula from Coulomb's law of electric field, where electric potential is the ratio of work done to the charge. The unit of work is Joules and the charge is measured in coulombs.
Therefore, the units of electric potential will be Joule/Coulomb.
The CGS unit of electric potential is Stat volt. One stat volt is equal to one erg divided by one stat coulomb.
Therefore, the unit of electric potential in the CGS system is Erg/stat coulomb.
All the given units are the units of electric potential.
Therefore, the answer is Option D, none of these

Note: Electric potential is vector quantity which equally has both magnitude and direction. It can as well be positive and negative, and it depends on the position as traced to the x, y and z axes (three dimensional axes). Do not confuse electric potential with electric field.