___, the resistance of a conductor varies directly with its length. A. Temperature being constant B. If temperature will be constant C. Temperature is constant D. With temperature is constant 相关知识点: 试题来源: 解析 A 反馈 收藏
The resistance of a conductor varies ()A.directly as its length and inversely as its cross-sectional areaB.inversely as its length and directly as its cross-sectional areaC.directly as its length and directly as its cross-sectional areaD.inversely as i
单项选择题 The resistance of a conductor varies () A.directly as its length and inversely as its cross-sectional area B.inversely as its length and directly as its cross-sectional area C.directly as its length and directly as its cross-sectional area D.inversely as its length and inversely...
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in the tank. In both of the above cases a vertical electrical current is established and a high voltage may result at the surface of the liquid, which is known as a surface voltage. Over time, depending on the conductivity of the liquid, the charge will equalise with the tank structure ...
Specifically, oil samples were subjected to electrification for a duration of 1 h, while pressboard samples were electrified for 3 h. (1)In Equation (1), J represents current density, while E denotes for electric field. i(t) signifies current amplitude along the electrification time, and d...
alternating current- an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second" alternating electric current,AC electrical energy,electricity- energy made available by the flow of electric charge through a conductor; "they built a car...
The electrical characterization of NRPD is presented in Section 2.3, focusing on the factors affecting the current–voltage variation during the nanosecond discharge. 2.4 Heat release rate analysis, 2.5 Schlieren imaging present two methods used to analyze the combustion process. The remaining part of ...
Frontal circuits play a critical role in motor, cognitive and affective processing, and their dysfunction may result in a variety of brain disorders. However, exactly which frontal domains mediate which (dys)functions remains largely elusive. We studied 534 deep brain stimulation electrodes implanted ...
Concrete age is the time since the moment water is added to the cement, and the age of concrete comprehensively reflects the physical properties of the concrete when curing under standard conditions. For concrete under nonstandard conditions, its physica