Heat is produced, and electrical energy is consumed when the current meets resistance.
The obstruction to current flow in an electrical circuit is measured by resistance. The Greek letter omega () represents the unit of measurement for resistance, known as ohms. Georg Simon Ohm (1784–1854), a German physicist who investigated the connection between voltage, current, and resistance, is the name given to the unit of resistance.
Another significant characteristic that may be measured in electrical systems is resistance. Ohms are a unit of measurement for resistance. The forces that oppose the flow of electrical current in a conductor are referred to as resistance. Natural resistance to the flow of electron current exists in all materials. Using ohms () as the unit, resistance acts as a gauge to quantify how easily current will flow through a circuit. When resistance falls, the current rises, and when resistance rises, currently falls.
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