Ohm's Law states that resistance is equal to what?

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Ohm's Law is a fundamental principle in electrical engineering, which states the relationship between voltage (V), current (I), and resistance (R). The law is expressed by the formula V = I * R, which can be rearranged to find resistance as R = V/I. This formula illustrates that the resistance in a circuit is equal to the voltage across it divided by the current flowing through it.

Understanding this relationship is crucial for analyzing electrical circuits, as it helps determine how much current will flow for a given voltage and resistance. In practical applications, knowing how to calculate resistance using voltage and current allows engineers to design efficient circuits, select appropriate components, and troubleshoot electrical systems effectively. Thus, recognizing that resistance is represented by the relationship of voltage divided by current is key to mastering circuit analysis.