According to Ohm's Law, what can be calculated if the applied emf and resistance are known?

Ohm's Law establishes a direct relationship between voltage (emf), current, and resistance in an electrical circuit, expressed mathematically as V = IR, where V is the voltage, I is the current, and R is the resistance. When the applied emf (voltage) and the resistance are known, you can rearrange this equation to solve for current flow (I). Specifically, I = V/R, meaning that current can be calculated by dividing the voltage by the resistance.

This principle is foundational in electrical engineering and helps predict how much current will flow in a circuit when certain conditions are met. While voltage drop, resistance, and power consumption can also be calculated under different circumstances, knowing the emf and resistance specifically allows for the calculation of current flow directly through Ohm's Law.