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Learn the various meanings and uses of the word resistance, from opposition to a psychological defense mechanism. See synonyms, examples, word history, and related phrases for resistance.
Learn the meaning of resistance in English, with examples of usage in different contexts and domains. Find out how to say resistance in other languages, such as Chinese, Spanish and Portuguese.
The electrical resistance of an object is a measure of its opposition to the flow of electric current. Its reciprocal quantity is electrical conductance, measuring the ease with which an electric current passes. Electrical resistance shares some conceptual parallels with mechanical friction.
Learn how resistance measures the opposition to current flow in an electrical circuit and how to use Ohm's Law to calculate it. See examples of conductors, insulators and fixed-resistance components and how to troubleshoot them.
May 30, 2024 · Resistance is the property of an electric circuit that converts electric energy into heat energy. Learn how resistance is measured in ohms, how it depends on length, area, and material, and how it affects current and voltage.
- The Editors of Encyclopaedia Britannica
Learn what electrical resistance is, how it is measured, and what factors affect it. Find out the difference between resistance and resistivity, and see examples and questions on electrical resistance.
A measure of the degree to which a substance impedes the flow of electric current induced by a voltage. Resistance is measured in ohms. Good conductors, such as copper, have low resistance. Good insulators, such as rubber, have high resistance.
