depends of (i) its length (ii) its area of cross section and (iii)on the nature of its material. PRecise measurements show that resistance of a uniform metallic conductor is directly proportional to its length (
A conductor has resistance of 5Ω at 60∘Cand6Ω at 100∘C . Find (i) the mean temperatures coefficient of resistance of the material of conductor and (ii) resistance at 0∘C. View Solution The variation of resistance of a metallic conductor with temperature is shown in figure. (...
百度试题 结果1 题目18 Which graph represents a metallic conductor, where the resistance of the conductor is given by the gradient of the graph?A0000000 相关知识点: 试题来源: 解析 A 反馈 收藏
What is the resistance of a17cm-long piece of iron with a1.5mm×1.5mmsquare cross section? Resistance: When an electric current is supplied to a material then the resistance is the property of the material by which it opposes the flow of current. ...
The resistance RH may be copper oxide, and has a negative temperature coefficient. The ratio of the energy absorbed in the semi-conductor RH to that absorbed in the coil RK is preferably less than 1 : 4. The resistance RH must be maintained at the same temperature as' the coil RK, as...
m? Resistance and Resistivity:The resistance of a conductor is directly proportional to both the resistivity and the length of the conductor. In addition, the resistance is inversely proportional to the cross-sectional area of the conductor.An...
ii) d9ions (Pd+and Pt+[91,92,93,94]): In these materials, an unusual oxidation state is stabilized by a metal–metal bonding [89]. Although these materials are metallic and opaque, ultrathin films have reasonably low sheet resistance and high transmittance, particularly in the near IR re...
Batteries are of paramount importance for the energy storage, consumption, and transportation in the current and future society. Recently machine learning (ML) has demonstrated success for improving lithium-ion technologies and beyond. This in-depth review aims to provide state-of-art achievements in...
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Which copper alloys are used for the manufacture of a resistance wire?Question:Which copper alloys are used for the manufacture of a resistance wire?Alloys:Alloys are basically combination of metal along with other element. It can be described through the metallic bonding character. The ...