In Ohm's Law, current is represented by the letter __ in all the math formulas.

In Ohm's Law, current is represented by the letter "I". This convention originates from the French term "intensité de courant", which translates to "current intensity." Using "I" to denote current is standardized in electrical engineering and physics, making it universally recognized in mathematical equations relating to current, voltage, and resistance.

In Ohm's Law, the relationship among these quantities is stated as V = I * R, where V is voltage, I is current, and R is resistance. This equation shows how current can be calculated based on known values of voltage and resistance. The use of "I" specifically highlights the role of electric current in circuits and formulas, thereby reinforcing its significance in electrical theory and practical applications. Understanding this standard notation is crucial for anyone studying or working with electrical systems.