ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÈçͼËùʾµÄ×°ÖúÜÓд´Ò⡪¡ªËü½«±È½ÏºÄË®µÄÏ´Ò»úºÍͬÑùºÄË®µ«²»Ì«½²¾¿Ë®ÖʵÄÂíÍ°Á¬ÔÚÒ»Æð£ºÉϲ¿ÊÇÏ´Ò»ú£¨Óйؼ¼Êõ²ÎÊý¼ûÃúÅÆ£©£¬Ï²¿ÊÇÂíÍ°£¬ÖмäÉèÓÐÖüË®Ï䣮ϴÒ»ú»¹ÉèÓмÓÈȹ¦ÄÜ£¬Ï´µÓÇ°ÏȽ«Ë®¼ÓÈȵ½ÊÊÒËζȣ®¿ÉÒÔÌá¸ßÏ´µÓЧ¹û.
£¨1£©ÇóÍÑˮʱµÄÕý³£¹¤×÷µçÁ÷£»
£¨2£©Ä³´ÎÏ´ÒÂʱ£¬½øË®ºó£¬Õý³£¼ÓÈÈ15minˮδﵽÉ趨ҪÇó, ½Ó×ÅÏ´µÓ¹²ÓÃÁË30min£¬ÍÑË®ÓÃÁË6min£¬ÇóÈ«¹ý³ÌÏûºÄµÄµçÄÜ.
¡¾´ð°¸¡¿
£¨1£©½â£ºÓÉÃúÅÆ¿ÉÖª£¬Ï´Ò»úÍÑË®¹¦ÂÊΪ330W£¬ÔòÍÑˮʱµÄÕý³£¹¤×÷µçÁ÷
´ð£ºÍÑˮʱµÄÕý³£¹¤×÷µçÁ÷Ϊ1.5A¡£
£¨2£©½â£ºÏ´Ò»úÈ«¹ý³ÌÏûºÄµÄµçÄÜW×Ü=WÈÈ+WÏ´+WÍÑ=PÈÈtÈÈ+PÏ´tÏ´+PÍÑtÍÑ=2kW¡Á
´ð£ºÏ´Ò»úÈ«¹ý³ÌÏûºÄµÄµçÄÜΪ0.633kwh.
¡¾½âÎö¡¿£¨1£©Óɱí¸ñÖÐÊý¾Ý¿ÉÖª£¬Ï´Ò»úµÄÍÑË®¹¦Âʼ°¹¤×÷µçѹ£¬ÔòÓɹ¦Âʹ«Ê½P=UI¿ÉÇóµÃÍÑˮʱµÄ¹¤×÷µçÁ÷£»
£¨2£©ÓÉÈȹ¦ÂÊ¡¢Ï´µÓ¹¦ÂʺÍÍÑË®¹¦Âʸù¾Ý£¬ÔËÓù«Ê½£¬¼ÆËãÈ«¹ý³ÌÏûºÄµÄµçÄÜ£®
¡¾¿¼µã¾«Îö¡¿½â´ð´ËÌâµÄ¹Ø¼üÔÚÓÚÀí½âµç¹¦µÄ¼ÆËãµÄÏà¹Ø֪ʶ£¬ÕÆÎյ繦¼ÆË㹫ʽ£ºW=UIt£¨Ê½Öе¥Î»W¡ú½¹(J)£»U¡ú·ü(V)£»I¡ú°²(A)£»t¡úÃ룩£¬ÒÔ¼°¶Ôµç¹¦ÂʵļÆË㹫ʽµÄÀí½â£¬Á˽â¼ÆËãµç¹¦Âʹ«Ê½£ºP =W/t £»P=UI ; ʽÖе¥Î»P¡úÍß(w)£»W¡ú½¹£»t¡úÃ룻U¡ú·ü£¨V£©£»I¡ú°²£¨A£©¼ÆËãµç¹¦ÂÊ»¹¿ÉÓù«Ê½£ºP=I2RºÍP= U2/R£®