What is electrical voltage? How can you define it through the work of current and electric charge?

Voltage is the potential difference between the two ends of a conductor. Voltage is denoted by the Latin letter U, the voltage unit is Volt (V). You can determine the voltage through the strength of the current and the electric charge using the following formula:

A = U * q, from here we find that U = A / q, where:

U is the voltage of the electric current, Volt;

A is the work done by the electric current on the section of the circuit, Joule;

q is the charge of electric current that has passed through the conductor during the performance of the work, Coulomb.