According to Ohm's law, what does the equation E = I * R denote?

The equation E = I * R represents Ohm's Law, where E denotes voltage, I stands for current, and R signifies resistance. This relationship indicates that voltage in a circuit is directly proportional to the current flowing through it and the resistance of the circuit. In simpler terms, if you know the current and the resistance, you can calculate the voltage drop across that resistance.

This fundamental principle of electrical engineering helps in analyzing and designing electrical circuits, ensuring that the components operate safely and effectively. Understanding this equation is crucial, as it forms the basis for many other calculations related to power, energy, and circuit behavior.

In contrast, other options relate to different formulas or interpretations that are not directly derived from Ohm’s Law. For instance, power calculations involve voltage and current but do not directly utilize the equation E = I * R in the specific context described.