What does the symbol "V" represent in electrical terminology?

In electrical terminology, the symbol "V" represents voltage, which is the measure of the electric potential difference between two points in a circuit. Voltage is a crucial concept as it determines how much electrical energy is available to move charge carriers, like electrons, through a conductor. This potential difference is what drives the current through a circuit and is measured in volts.

Understanding voltage is essential for grasping how electrical systems operate, as it directly affects current and power. While current strength relates to the flow of electric charge and is represented by the symbol "I," and resistance is indicated by "R," voltage is key to linking these two concepts through Ohm's Law (V = I × R). Power, represented by "P," is also related, but focuses on the rate of energy transfer in the circuit rather than the potential difference itself. Thus, voltage is fundamental in understanding electrical theory and principles.