electric resistance

**electric resistance**

Electric resistance is a fundamental property of materials that opposes the flow of electric current. It quantifies how much a material resists the movement of electrons, converting some electrical energy into heat. Measured in ohms (Ω), resistance depends on factors such as the material’s composition, length, cross-sectional area, and temperature. Understanding electric resistance is essential for designing and analyzing electrical circuits, components, and devices ranging from simple resistors to complex electronic systems.