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Resistance


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377825
Resistance

Resistance is a fundamental concept in physics and engineering that refers to the degree to which a material or system opposes the flow of current or the passage of some other form of energy. Resistance can be found in a wide range of physical systems, from electrical circuits to fluid dynamics to social and political movements. In all cases, resistance is a measure of the extent to which a system resists change or movement, and it can be both a positive and a negative force, depending on the context. In electrical engineering, resistance is a key parameter that determines the behavior of circuits and systems. It is measured in ohms and is represented by the symbol R. Resistance can be caused by a variety of factors, including the physical properties of the materials used in a circuit, the geometry of the circuit, and the temperature and other environmental conditions. Resistance can also be affected by external factors such as electromagnetic interference and noise. Resistance can have a significant impact on the performance and efficiency of electrical systems, and it is therefore an important consideration in the design and optimization of such systems. Engineers use a variety of techniques to minimize resistance and maximize the efficiency of electrical circuits, including the use of high-conductivity materials, careful circuit design, and the use of advanced control systems. In addition to its role in electrical engineering, resistance is also an important concept in other fields, such as fluid dynamics and social and political movements. In these contexts, resistance refers to the degree to which a system or group opposes change or movement. In fluid dynamics, for example, resistance refers to the degree to which a fluid resists motion through a pipe or other conduit. In social and political movements, resistance refers to the degree to which a group opposes or challenges the status quo or dominant power structures. Overall, resistance is a fundamental concept that plays a critical role in many different fields and systems. Whether in the context of electrical engineering, fluid dynamics, or social and political movements, resistance is a measure of the degree to which a system or group opposes change or movement, and it can have a significant impact on the behavior and efficiency of those systems.

Electrical engineering, Ohms, Efficiency, Fluid dynamics, Social movements

John Allen

247437
Resistance

Resistance is a measure of the opposition to electrical current in an electrical circuit. It is measured in ohms and is represented by the symbol R. It plays an important role in electrical engineering and is widely used in various fields of technology. Resistance is an important factor in the design of electrical and electronic circuits and systems, as it acts as an impediment to the flow of electric current. Resistance can be either static or dynamic, depending on the type of material used and the method of measurement. Static resistance is constant, while dynamic resistance can vary with the frequency of the current. Resistance also affects the power consumption of a circuit, as well as the amount of heat generated.

Electrical, Ohms, Current, Impediment, Power.

Richard Walker


Resistance Definition
Resistance on Design+Encyclopedia

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