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我们先来看一道有关白炽灯的实际功率的习题: 将“PZ 220V 100W”的白炽灯接入110V的电路中,白炽灯的实际功率是: A.50W。B.25W。C.大于25W小于50W。D.小于25W。
Let’s take a look at an exercise related to the actual power of incandescent lamps: Connect the “PZ 220V 100W” incandescent lamp to the 110V circuit. The actual power of the incandescent lamp is: A.50W. B.25W. C. Greater than 25W less than 50W. D. Less than 25W.