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- Dictionaryresistance/rɪˈzɪst(ə)ns/
noun
- 1. the refusal to accept or comply with something: "they displayed a narrow-minded resistance to change" Similar Opposite
- 2. the ability not to be affected by something, especially adversely: "some of us have a lower resistance to cold than others"
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Learn what is electrical resistance, 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.
- 3 min
Learn what resistance is, how it affects current flow and how to measure it using Ohm's Law. Find out the difference between conductors and insulators, and how to troubleshoot resistance problems in circuits.
- Resistance
- Resistivity and Resistance
- Resistance and Conductance
- Classification of Materials According to Electrical Resistivity
- Resistance of Various Devices
- Resistance of Various Home Devices
- How to Measure Resistance
- Resistance and Joule Heating
- Resistance – Hydraulic Analogy
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Resistance is the property of a material or component that opposes the flow of electric current through it. It is measured in Ohms and denoted by the symbol “Ω”. Resistance arises due to the interactions between electrons and the atoms or molecules that make up the material. When an electric current flows through a material, the electrons collide w...
Resistivity and resistance are related but distinct concepts in electrical circuits. Resistance is a measure of how difficult it is for electrical current to flow through a material, and it is measured in ohms (Ω). The resistance of a material depends on its geometry (length, cross-sectional area, etc.) and its resistivity (ρ), which is a fundament...
Resistance and conductance are two related properties of a material that describe its ability to conduct electricity. Resistance is the property of a material that opposes the flow of electric current through it, while conductance is the property that allows electric current to flow easily through a material. Resistance is measured in Ohms (Ω) and ...
Materials can be classified into different categories based on their electrical resistivity. Here are some common categories: 1. Conductors: Materials with low electrical resistivity, such as metals and some types of solutions, are known as conductors. They are able to carry an electric current with minimal resistance and are commonly used in elect...
The resistance of electrical components can vary widely depending on their design, materials, and intended use. Here are ten examples of electrical components and their typical resistance values: 1. Resistor: A component designed to have a specific resistance value. Resistance can range from a few ohms to several megaohms, depending on the specific...
Here are five examples of resistance in ohms of various home devices: 1. Incandescent light bulb: The resistance of an incandescent light bulb varies depending on its wattage and voltage. For example, a 60-watt bulb designed to work with a 120-volt power supply will have a resistance of approximately 240 ohms. 2. Electric heater: An electric heater...
Resistance can be measured using a device called a multimeter, which is a tool used to measure electrical properties such as voltage, current, and resistance. Here are the steps to measure resistance using a multimeter: 1. Turn off the power source: If the circuit being measured is powered, turn off the power source and disconnect any batteries. 2....
Ohm’s lawcan be explained at a microscopic level by understanding the behavior of electrons in a conductor. In a conductor, such as a metal wire, there are free electrons that are able to move through the material. These electrons collide with the atoms of the conductor as they move, which creates a resistance to their motion. The resistance of a c...
The hydraulic analogy, or the electric-fluid analogy, is a widely used analogy between hydraulics and electricity, which is a useful tool for teaching and for those who are struggling to understand how circuits work. it can also be applied to heat transfer problems. Since electric current is invisible and the processes in play in electronics are of...
Resistance is the property of a material or component that opposes the flow of electric current through it. Learn how resistance depends on resistivity, geometry, and temperature, and how to classify materials based on their resistivity.
Sep 12, 2022 · The resistance of a coaxial cable depends on its length, the inner and outer radii, and the resistivity of the material separating the two conductors. Since this resistance is not infinite, a small leakage current occurs between the two conductors.
May 30, 2024 · Resistance, in electricity, property of an electric circuit or part of a circuit that transforms electric energy into heat energy in opposing electric current. Resistance involves collisions of the current-carrying charged particles with fixed particles that make up the structure of the conductors.
- The Editors of Encyclopaedia Britannica
Resistance can mean the act of fighting against something, a force that stops something, or a degree of electrical conductivity. Learn more about the different meanings and uses of resistance with examples and collocations.
Resistance is the hindrance to the flow of charge. For an electron, the journey from terminal to terminal is not a direct route. Rather, it is a zigzag path that results from countless collisions with fixed atoms within the conducting material. The electrons encounter resistance - a hindrance to their movement.
