How can Ohm's law be written as an equation?

Ohm's law can be succinctly expressed in the equation ( E = I \times R ), where ( E ) represents the voltage (electromotive force), ( I ) is the current, and ( R ) is the resistance. This foundational equation in electronics illustrates the relationship between these three parameters, providing a clear understanding of how voltage is directly proportional to both current and resistance in a circuit.

In this equation, if you know any two values (voltage, current, or resistance), you can calculate the third. For example, if you increase the resistance while keeping voltage constant, the current will decrease, which is a practical application of Ohm's law in circuit design and analysis. This understanding is crucial for mechanics and technicians who work with electrical systems in aviation, ensuring safe and effective troubleshooting and maintenance of aircraft electrical systems.