Search results
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.
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.
Sep 12, 2022 · Resistivity. When a voltage is applied to a conductor, an electrical field →E is created, and charges in the conductor feel a force due to the electrical field. The current density →J that results depends on the electrical field and the properties of the material. This dependence can be very complex.
The SI unit of electrical resistance is the ohm ( Ω ), while electrical conductance is measured in siemens (S) (formerly called the 'mho' and then represented by ℧ ). The resistance of an object depends in large part on the material it is made of.
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 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.
Learn what resistance is, how it is measured, and how it depends on material properties and geometry. Explore the different categories of materials based on their resistivity and resistance, and see examples of common electrical components and their resistance values.
