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2005年呼和浩特市中考物理试卷中有这样一道图试1题是:两个额定电压为220V的白炽灯L1和L2的“电压和电流关系的图象”·(1)请根据图象计算L2的额定电功率为多少?
In the 2005 Huhhot examination physics paper, there was such a diagram test 1 titled: “The image of voltage and current relationship between two incandescent lamps L1 and L2 with rated voltage of 220V”. (1) Calculate L2 from the image. What is the rated power?