WebResistance of a wire depends upon: Length of wire: Resistance is directly proportional to the length of a wire. Area of a cross-section of wire: Resistance is inversely proportional to the area of cross-section the wire. The temperature of the wire: Resistance of a wire is directly proportional to the temperature of the wire. WebResistance of a wire depends upon: Length of wire: Resistance is directly proportional to the length of a wire. Area of a cross-section of wire: Resistance is inversely proportional to …
Electrical resistance and conductance - Wikipedia
WebThe resistance of a wire depends both on the cross-sectional area and length of the wire and on the nature of the material of the wire. Thick wires have less resistance than thin wires. ... Where ρ is the constant of proportionality, known as specific resistance. Its value depends upon the nature of the conductor i.e copper, iron, tin, and ... WebJan 24, 2024 · We know that the electrical resistance \(R\) and specific resistance \(\rho \) depend on the physical nature of the given material; its dimensions or physical shape are expressed in terms of its length \(L\) and area of cross-section A. Thus, the conductance of a material is a function of the nature and physical properties of the given substance. how do you legally change your gender
Electrical Resistance: Definition, Unit, Formula, Measurement
WebJan 26, 2024 · Answer: R ≈ 0.004 Ω. Remark 1: As we see, resistance of a wire is lower when the wire gauge is thicker. Specifically, when the diameter of a cylindrical wire doubles, its resistance decreases to one-fourth of the original wire. Thus, wire gauge is not only an indication of its shape. WebApr 6, 2024 · Views today: 4.82k. Resistivity or specific resistance of a material is a measure of the resistance, which it offers to the flow of current through it. It is an intrinsic property … WebA 12-gauge wire is wider than 14-gauge wire and thus has less resistance. The lesser resistance of 12-gauge wire means that it can allow charge to flow through it at a greater rate - that is, allow a larger current. Thus, 12-gauge wire can safely support a circuit that uses an appliance drawing up to 20 Amps of current. how do you legally start a business