In Ohm's Law (I = V/R), what does the letter "I" represent?

In Ohm's Law, represented by the equation I = V/R, the letter "I" stands for current. Current refers to the flow of electric charge through a conductor and is measured in amperes (A). Understanding this concept is essential in electrical engineering and welding applications, as it relates to the operation of welding machines and circuits.

The relationship depicted in Ohm's Law illustrates that current is dependent on the voltage (V) applied across a resistance (R) in the circuit. When the voltage increases while the resistance remains constant, the current flows more readily. This foundational principle is crucial in ensuring proper function and safety in electrical systems involved in welding and other applications.