What is the formula for calculating ohms?

The correct formula for calculating resistance in ohms is represented by the equation R = V/I. In this formula, R stands for resistance measured in ohms, V represents voltage in volts, and I denotes current in amperes.

This relationship is derived from Ohm's Law, which states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance. By rearranging the formula, you can see that resistance can be calculated by dividing the voltage by the current. This understanding is fundamental in electrical theory and practical applications, as it allows electricians and engineers to determine how much resistance is present in a circuit when the voltage and current values are known.

The other options present incorrect formulations that do not accurately represent the relationship between resistance, voltage, and current, lessening their validity in practical use. Understanding the correct formula is essential for anyone working with electrical systems, as it forms the basis for analyzing and troubleshooting circuits effectively.