The power dissipated in a resistor can be calculated using the formula ___. A. P = I²R B. P = V²/R C. P = VI D. All of the above 相关知识点: 试题来源: 解析 D。解析:电阻消耗的功率可以用 P = I²R、P = V²/R、P = VI 三个公式计算。反馈...
The power factor for the circuit, overall, has been substantially improved. The main current has been decreased from 1.41 amps to 994.7 milliamps, while the power dissipated at the load resistor remains unchanged at 119.365 watts. The power factor is much closer to being 1: ...
resistor. Athree-phase380voltelectricheatingdevicewithacurrent of1.5kilowattsperkilowatt.Abouthalfofthekilowattcount (by1.5)iscurrent,ann. [case1]3kilowattsofelectricheaterspress"electricplus half",andthecurrentis4.5. [case2]15kWresistancefurnaceaccordingto"electricplus half",thecurrentis23. Thisformula...
Theinductorstores electrical energy in the form of magnetic energy and the capacitor stores electrical energy in the form of electrostatic energy. Neither of them dissipates it. Further, there is a phase shift between voltage and current. In circuits withresistor, inductors, and capacitors, a phas...
2. formula: low voltage380/220 Volts CURRENT per KW, anne. KW, current, how tocalculate? Power doubling, electricplus half. Single-phase kilowatt, 4.5ann. Single phase 380, currenttwo a.. 3. Description: the formulais in the three-phase equipment 380/220V in three-phase four wire system...
Even if the formula for DC heat dissipation in a resistor isn't at your fingertips, a little Ohm's Law and the definition of power can easily create it. On the other hand, forgetting to calculate power ratings, particularly for cathode resistors and RC ripple filters, is one of the most...
Smaller part in form of protrusion it enters into hole of nearby plate with formation of relative gap between plate and insulator, value is selected from mathematical formula.;EFFECT: invention allows providing maximum cooling of power resistor.;1 cl, 4 dwgTIMOFEEV ANTON IGOREVICH RU...
Line regulationis the ability of a power supply to maintain the output voltage given changes in the input line voltage. Load regulationis the ability of a power supply output to remain constant given changes in the load. You shouldexercise caution when sourcing power to capacitive, inductive, an...
together, producing an output voltage proportional to load power. The current monitor is a high-side type, in which the sense resistor is connected to the "hot" side of the load instead of the low (ground) side. Thus, high-side monitors avoid adding unwanted resistance in the ground path...
Implemented in 130 nm CMOS technology, each implementation occupies an area of 0.053 mm2. The PCE of rectifier remains over 20% for an input range of 8.5 dB and the sensitivity is − 20.5 dBm with a 1 M Ω load resistor at 896 MHz. Sign in to download hi-res...