In Ohm's Law, how is voltage calculated?

In Ohm's Law, voltage is calculated using the formula ( E = I \times R ), where ( E ) represents voltage (often measured in volts), ( I ) is the current (measured in amperes), and ( R ) is the resistance (measured in ohms). This formula indicates that the voltage across a conductor is directly proportional to the current flowing through it and the resistance of that conductor.

The principle behind this relationship stems from the concept that when an electric current flows through a resistance, a certain amount of electrical energy (in the form of voltage) is required to push that current through the resistance. Understanding this relationship is crucial in electrical engineering and physics, as it allows for the analysis and design of electrical circuits.

In practical applications, if you know the current flowing through a circuit and the resistance, you can easily calculate the required voltage to maintain that current. This fundamental understanding of voltage, current, and resistance is essential for any work involving electronics or circuit design.