电功率计算公式:电压V = R × I 电压V = P ÷ I 功率P = V × I 电流I = P ÷ V 功率P = V 2 ÷ R例:加热器电阻电源为220V,功率为65Ω。(220×220)÷65=744W纯直流电阻电力、电流电压在线自动计算器请输入任意两个值,第三个值将被计算。
Formula for calculating electric power:Voltage V = R × I (1) Voltage V = P ÷ I (2) Power P = V × I (3) Electric current I = P ÷ V (4) Power P = V2 ÷ R (5) (5)Example: a heater resistance The power supply is 220V, and its power is 65Ω. (220×220)÷65=744W Pure DC resistance electric power, current and voltage online automatic calculator Please enter any two values, and the third values will be calculated. |