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一、概念辨析1.额定功率是用电器正常工作时的最大输出功率,而实际功率是电流通过用电器时真正消耗的功率.例如“220V,40W”的灯泡,它的额定功率是“40W”,它表明这个灯泡正常工作时的最大输出功率是“40W”,超过这个数值,灯泡就可能被烧坏.而这个灯泡的实际功率要视具体的工作环境而定.例如在“220V”的电压下,这个灯泡的实际功率就是“40W”,在“110V”的电压下,这个灯泡的实际功率就只有“10W”.
First, the concept of discrimination 1. Rated power is the maximum output power when the appliance is working, and the actual power is the power consumed when the current through the appliance. For example, “220V, 40W” bulb, its rated power is “40W” It indicates that the maximum output power of this lamp during normal operation is “40W”. Above this value, the lamp may be burned out. The actual power of the lamp depends on the specific working environment. For example, the voltage at “220V” Next, the actual power of this light bulb is “40W”. Under the “110V” voltage, the actual power of this light bulb is only “10W”.