A measure of the degree to which a material resists the flow of electric current, expressed as the ratio of the potential difference (voltage) across the material to the current flowing through it.

प्रतिरोधकता का गुणांक, जो विद्युत धारा के प्रवाह का प्रतिरोध मापता है

English Usage: The coefficient of resistance for copper is very low, making it an excellent conductor of electricity.

Hindi Usage: तांबे का प्रतिरोधकता गुणांक बहुत कम होता है, जिससे यह विद्युत का उत्कृष्ट संवाहक बनता है।