ÌâÄ¿ÄÚÈÝ
ÍõÄÌÄ̼ҵĵçÈÈ̺±êÓС°220V 80W¡±£¬Ö»ÓÐÒ»¸öµ²Î»£¬Ê¹Óò»·½±ã£®Ð¡Ã÷Ï뽫Ëü¸ÄÔì³ÉÁ½¸öµ²Î»µÄµçÈÈ̺£ºAó{µµÎ»£ºµçÈÈ̺ÔÚ¡°220V 80W¡±ÏÂÕý³£¹¤×÷£»BµÍµµÎ»£ºµçÈÈ̺ÔÚ½ÏСµÄ¹¦ÂÊϹ¤×÷£®ÊÔÇó£º
¢ÅÕâ¸öµçÈÈ̺Õý³£¹¤×÷ʱµÄµç×èR0
¢ÆÈôÿÍíÓÃ2.5h£¬ÔòÿÌìÏûºÄµÄµçÄÜÊǶàÉÙkW•h£®
¢ÇΪʹ¸ÄÔìºóµÄµçÈÈ̺ÔÚµÍε²Î»Ê±µçÈÈË¿R0µÄ·¢Èȹ¦ÂÊΪ¶î¶¨¹¦ÂʵÄ25%£¬ÔòÐèÒ»¸ö×èÖµR¶à´óµÄµç×è?
¢È¼ÆËãºó£¬ÇëÄã°ïСÃ÷ÔÚÉÏ·½ÓÒͼµÄ·½¿òÖл³öÄãÉè¼ÆµÄÄDz¿·Öµç·ͼ£®
¢ÅÓɵà 2·Ö
¢ÆW=Pt=0.2 kW•h. 1·Ö
¢Ç=80W¡Á25%=20W =110V 2·Ö
ËùÒÔÓ¦¸Ã´®ÁªÒ»Ö»ÓëR0ÏàµÈµÄµç×裬¼´=605¦¸ 1·Ö
¢Èµç·Éè¼ÆͼÂÔ 2·Ö
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿