What does electrical resistance mean?
Definitions for electrical resistance
elec·tri·cal re·sis·tance
This dictionary definitions page includes all the possible meanings, example usage and translations of the word electrical resistance.
Princeton's WordNet
electric resistance, electrical resistance, impedance, resistance, resistivity, ohmic resistancenoun
a material's opposition to the flow of electric current; measured in ohms
Wiktionary
electrical resistancenoun
The opposition offered by an electrical conductor to the flow of a current through itself, resulting in a conversion of electrical energy into heat and radiation. The SI derived unit of resistance is the ohm. Symbol: R.
Wikipedia
electrical resistance
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. 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. Objects made of electrical insulators like rubber tend to have very high resistance and low conductance, while objects made of electrical conductors like metals tend to have very low resistance and high conductance. This relationship is quantified by resistivity or conductivity. The nature of a material is not the only factor in resistance and conductance, however; it also depends on the size and shape of an object because these properties are extensive rather than intensive. For example, a wire's resistance is higher if it is long and thin, and lower if it is short and thick. All objects resist electrical current, except for superconductors, which have a resistance of zero.
ChatGPT
electrical resistance
Electrical resistance is a measure of the degree to which an object opposes the passage of an electric current. It refers to the difficulty encountered by the current in its path, causing the electrical energy to be converted into heat, sound or light. The unit of electrical resistance is the ohm. Higher resistance causes lower current to flow for a given voltage applied.
Wikidata
Electrical resistance
The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor; the inverse quantity is electrical conductance, the ease at which an electric current passes. Electrical resistance shares some conceptual parallels with the mechanical notion of friction. The SI unit of electrical resistance is the ohm, while electrical conductance is measured in siemens. An object of uniform cross section has a resistance proportional to its resistivity and length and inversely proportional to its cross-sectional area. All materials show some resistance, except for superconductors, which have a resistance of zero. The resistance of an object is defined as the ratio of voltage across it to current through it, while the conductance is the inverse: For a wide variety of materials and conditions, V and I are directly proportional to each other, and therefore R and G are constant. This proportionality is called Ohm's law, and materials that satisfy it are called "Ohmic" materials. In other cases, such as a diode or battery, V and I are not directly proportional, or in other words the I–V curve is not a straight line through the origin, and Ohm's law does not hold. In this case, resistance and conductance are less useful concepts, and more difficult to define. The ratio V/I is sometimes still useful, and is referred to as a "chordal resistance" or "static resistance", as it corresponds to the inverse slope of a chord between the origin and an I–V curve. In other situations, the derivative may be most useful; this is called the "differential resistance".
Matched Categories
Numerology
Chaldean Numerology
The numerical value of electrical resistance in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of electrical resistance in Pythagorean Numerology is: 3
Translations for electrical resistance
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"electrical resistance." Definitions.net. STANDS4 LLC, 2024. Web. 21 Dec. 2024. <https://www.definitions.net/definition/electrical+resistance>.
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