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In this video Mr. Swarthout gives a brief overview of resistance; including the definition, units and abbreviations.
For example, a resistance of 10 ohms can be written as 10 Ω. Did you know? All wires and components have resistance, though usually the resistance of wires is small enough to ignore.
The Electrical Resistance Video Tutorial explains the cause and effects of resistance. The variables that affect resistance are described and the mathematical equation relating resistance to those variables is described. Numerous examples, illustrations, and animations assist in the explanations.
28 Δεκ 2020 · Definition of Resistance. Electrical resistance is a measure of opposition to the flow of electric current. If you consider electrons flowing through a wire as analogous to marbles rolling down a ramp, resistance is what would happen if obstructions were placed on the ramp, causing the flow of marbles to slow as they transfer some of their ...
Electrical resistance is the hindrance to the flow of charge through an electric circuit. The amount of resistance in a wire depends upon the material the wire is made of, the length of the wire, and the cross-sectional area of the wire.
Resistance is a material's tendency to resist the flow of charge (current). So, when we talk about these values, we're really describing the movement of charge, and thus, the behavior of electrons. A circuit is a closed loop that allows charge to move from one place to another.
Resistance is the measure of opposition to the flow of current (how difficult it is for a current to flow through a component). Components and wires in a circuit reduce the flow of current through them. The resistance of an object is also dependent on its material.
