Voltage is equal to ____________.

Voltage is equal to resistance multiplied by current, which is derived from Ohm's Law. Ohm’s Law states that the relationship between voltage (V), current (I), and resistance (R) is expressed as V = I × R. This fundamental principle in electrical engineering indicates that if you know the amount of current flowing through a circuit and the resistance of that circuit, you can calculate the voltage across it.

In practical terms, this means if you increase the resistance in a circuit while keeping the current constant, the voltage will increase proportionally. Conversely, if the resistance decreases and current remains the same, the voltage will decrease. Understanding this relationship is crucial for troubleshooting circuits and designing electrical systems effectively.