The specific resistance of wire depends on
WebWhen n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance is (A) nx (B) rnx (C) x / n (D) n2 x. 3. Resistance of a wire is r ohms. The wire is stretched to double its length, then its resistance in ohms is (A) r / 2 (B) 4 r (C) 2 r (D) r / 4. 4. WebThe resistance of a conductor is the hindrance by which the conductor opposes the flow of current through it. The resistance of wire is independent of the temperature for most of the materials The resistance of a wire does not depend upon its material. None of the above. R Ω 3 R Ω ⇒ Reciprocal of specific resistance is Conductive resistance ...
The specific resistance of wire depends on
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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. WebThe specific resistance of a wire depends only on the material of the wire and not on its size because specific resistance is an inherent attribute of wire material. Contrary to the …
WebWhere: R is the resistance in ohms (Ω), L is the length in metres (m), A is the area in square metres (m 2), and where the proportional constant ρ (the Greek letter “rho”) is known as Resistivity.. Electrical Resistivity. The electrical resistivity of a particular conductor material is a measure of how strongly the material opposes the flow of electric current through it. 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 …
WebSpecific resistance of a conductor depends on the nature of material but is independent of the dimension of the conductor. Thus specific resistance of rod of copper as compared to that of thin wire of copper is same. ... Specific resistance of a wire depends on the . Easy. View solution > If masses of three wires of copper are in the ratio of 1 ... WebThe resistance of an object depends in large part on the material it is made of. ... a wire's resistance is higher if it is long and thin, and lower if it is short and thick. ... electrical …
WebThe resistance of a conductor depends on the cross sectional area of the conductor, the …. View the full answer. Transcribed image text: The resistance of a wire depends on Select …
WebMar 31, 2024 · 2. It is also inversely proportional to the average relaxation time $(\tau)$ of the free electrons in the conducting material which in turn depends upon the temperature. … sanders small batch wonders where to buyWebApr 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 … sanders smoke technologies incWebThe resistance of each wire is 10 ω, 15 ω 20 ω, 30 ω 5 ω, 10 ω 10 ω, 20 ω ⇒ Which of the following statements is correct regarding resistance? The resistance of a conductor is the hindrance by which the conductor opposes the flow of current through it. The resistance of wire is independent of the temperature for most of the materials sanders small batch wonders thinsWebSpecific resistance of a wire depends upon its dimensions. D. The resistance of carbon decreases with an increase in temperature. Medium. Open in App. Solution. Verified by Toppr. Correct option is D) Carbon is an insulator and has a negative temperature co-efficient. Hence, its resistance decreases with an increase in temperature. sanders smithWebMay 8, 2024 · In other words, the thickness of 5 Amp wire would be more than 1 Amp. ... Specific Resistance of Copper. It depends on the cross-sectional area, length, and … sanders snoconutsWebA 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 … sanders small batch wonders sea salt caramelsWeba. Resistance does not play an important role in electrical engineering. b. The resistance of wire does not depend on its mineral. c. The resistance of most of the minerals is independent of the temperature. d. The resistance of the conductor is the hindrance by which the conductor opposes the flow of the current. sanders sound systems tweak