Ohms are the standard unit of measurement for electrical resistance in a circuit. Named after the German physicist Georg Simon Ohm, this unit quantifies how much a material opposes the flow of electric current. The higher the resistance measured in ohms, the less current will flow through the material for a given voltage. Understanding ohms is crucial for designing and analyzing electrical circuits. For instance, in Ohm's Law, the relationship between voltage, current, and resistance is expressed as V = IR, where V is voltage, I is current, and R is resistance in ohms. This fundamental principle helps engineers and electricians ensure safe and efficient electrical systems.