Which formula represents Ohm's Law?

Ohm's Law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in a circuit. The correct formula, which expresses this relationship, is V = I × R.

In this formula:

• V represents the voltage across the circuit element,

• I signifies the current flowing through the circuit element, and

• R is the resistance of the circuit element.

This relationship illustrates that the voltage in a circuit is directly proportional to the current, as long as the resistance remains constant. Thus, if you understand any two of these parameters, you can calculate the third. For example, if you increase the resistance while keeping the voltage constant, the current will decrease, demonstrating the formula's utility in practical applications, such as designing circuits or diagnosing electrical issues.

Other formulas provided are relevant in electrical contexts but represent different principles. For example, the formula P = V × I relates to power, indicating how much energy is consumed in a circuit over time. The formula R = V / I expresses resistance but is rearranged from Ohm's Law rather than being the primary expression of the relationship itself. The first option, V = I + R, does not accurately describe the relationship defined by Ohm's Law. Understanding