Which equation represents Ohm's Law?

Ohm's Law is a fundamental principle in electrical engineering that establishes the relationship between voltage (V), current (I), and resistance (R) in a circuit. The equation that represents this relationship is expressed as V = I * R.

In this equation, voltage is equal to the current multiplied by the resistance. This means that if you know the current flowing through a conductor and the resistance of that conductor, you can calculate the voltage across it. This relationship is crucial for understanding how electrical circuits operate and helps in designing and troubleshooting electrical systems.

The other options do not accurately represent this relationship. For example, V = I + R suggests an additive relationship that fails to consider the multiplicative nature of voltage and current with respect to resistance. Similarly, V = I / R implies a division where voltage would be reduced contrary to Ohm’s Law. Lastly, V = R / I introduces a different concept not aligned with the foundational principle of Ohm’s Law, which clearly demonstrates how voltage relates to both current and resistance in a circuit.