In Ohm's Law, resistance is represented by which letter?

In Ohm's Law, resistance is represented by the letter R. Ohm's Law is a fundamental principle in electrical engineering that relates voltage (V), current (I), and resistance (R) through the equation V = I × R. In this equation, R is the resistance measured in ohms (Ω), indicating how much the flow of electric current is opposed within a circuit. Understanding this relationship is crucial for analyzing and troubleshooting electrical circuits effectively. Other letters such as V and I are used to represent voltage and current, respectively, but R specifically denotes resistance, which is why it is the correct answer in the context of the question.