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10w的灯泡一小时耗电为0.01度。10w=0.01kw,0.01kw/h一小时耗电为0.01度电左右,电功率为0.01kw,1度=1kw/h,即W=Pt,P=0.01kw;W=Pt=0.01kw×1h=0.01kw/h。所以10w的灯泡一...