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In the International System of Units (SI), electric potential is expressed in units of joules per coulomb (i.e., volts), and differences in potential energy are measured with a voltmeter.

## What does u stand for in electric potential?

The unit of charge is the Coulomb (C), and the unit of electric potential is the Volt (V), which is equal to a Joule per Coulomb (J/C). potential energy = (charge of particle)(electric potential) U = qV. U = **potential energy**, with units J (Joules) q = the charge of the point particle, with units C (Coulombs)

## Why is electric potential important?

The discussion of electric potential is important because **we are always looking for convenient sources of energy**. Since any two point charges exert a force of attraction or repulsion on each other, if one charge moves in the field of the other a distance dr under an average force F, the work done is equal to Fdr.

## What is the potential difference symbol?

Potential difference is the work done in moving a unit of positive electric charge from one point to another. The symbol for potential difference is **V**.

## Why is electric potential scalar?

Electric potential is the scalar quantity because it is **defined as the amount of work done to bring a unit positive charge to bring from infinity to the point under the influence of the primary charge**. Work is a scalar as it is a dot product of force and displacement.