What does the equation E=IxR represent in electrical engineering?

The equation E = I x R is a representation of Ohm's Law, which is a fundamental principle in electrical engineering. Ohm's Law defines the relationship between voltage (E), current (I), and resistance (R) in an electrical circuit. According to this law, the voltage across a conductor is directly proportional to the current flowing through it, with resistance as the proportionality constant.

In this equation:

• E stands for voltage measured in volts (V).

• I stands for current measured in amperes (A).

• R stands for resistance measured in ohms (Ω).

By rearranging the equation, you can also express current as I = E/R or resistance as R = E/I, illustrating how these three quantities are interrelated. Ohm's Law is essential for analyzing and solving circuit problems, making it a cornerstone of electrical engineering. Understanding this relationship allows engineers and technicians to design and troubleshoot electrical systems effectively.