What does the letter 'I' stand for in electrical formulas?

In electrical formulas, the letter 'I' stands for current. Current is defined as the flow of electric charge in a circuit and is typically measured in amperes (A). It is a fundamental concept in electrical engineering and is crucial to understanding how circuits operate.

In Ohm's Law, which is often represented as V = I * R, 'I' represents the current flowing through a conductor between two points when a voltage (V) is applied across it. This relationship illustrates how current is influenced by both voltage and resistance (R).

Understanding current helps in analyzing circuit behavior, calculating power consumption, and designing electrical systems. Recognizing 'I' as current is essential for mastering both basic and advanced electrical concepts.