百度试题 结果1 题目交流电路(ac-circuit)中的阻抗(impedance)起着与电阻(resistance)在直流电路(dc-circuit)中相同的作用。相关知识点: 试题来源: 解析 /; the(根据式(2-1),我们得到以下的关系式。) 反馈 收藏
When reactive components are between source and sink, their reaction will cause the voltage across the circuit to rise slowly or diminish slowly as the current is applied. The result, in terms of resistance, is variable because we have collected the voltage measurement while it was moving up or...
the specific resistance of the membrane is of the same order as that of the electrolyte solution. Therefore, the difference in the resistance of the cell with and without
If there is AC, look also at the power factorPF= cosφandφ= power factor angle (phase angle) between voltage and amperage. ElectricEnergyisE=P×t− measured in watt-hours, or also in kWh. 1J = 1N×m = 1W×s Power Formula 2– Mechanical power equation:PowerP=E⁄twhere powerPis...
PROBLEM TO BE SOLVED: To increase the resistance of an AC-driven electric circuit to external noise.TSUCHIYA MASAHITO土屋 正仁SAITO YOJI齋藤 洋二
In this case, however, since the dielectric member covers the ohmic electrode portions or the inactive region of the semiconductor, the micro-wave power which has been oscillated or amplified is short-circuited, as clearly understood from the circuit of FIG. 4(b) which is an equivalent circuit...
the two metals must also be connected together at the other end so that a closed circuit is formed. With different temperatures at the junctions, the voltages generated are different and a current flows. A thermocouple can thus only measure temperature differences between the measurement junction an...
Based on the above formula, the impact stress of each coating tool in the process of cyclic impact was calculated. As shown inTable 5, the impact stress of the coating tool in the cyclic impact process was basically close to 1 GPa, which accords with the impact force of the milling tool...
For directly water-cooled windings, the water should be removed and the internal circuit thoroughly dried. The winding manufacturer may have provided a means of measuring results of the insulation resistance measurement without need for the coolant water to be drained. A minimum discharge time of fo...
Purpose – The purpose of this paper is to propose a simplified thermal circuit to estimate the temperature rise in the winding of a totally enclosed fan cooled electric motor for different loads and/or cooling conditions since the motor has already been tested for a known condition.Design/method...