ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÈçͼËùʾ£¬µçÔ´µçѹ±£³Ö²»±ä£¬Ð¡µÆÅÝL±êÓС°6V 3W¡±µÄ×ÖÑù¡£»¬¶¯±ä×èÆ÷R1µÄ×èÖµ·¶Î§ÒÑÄ£ºý²»Ç壬¶¨Öµµç×èR2µÄ×èֵΪ10¦¸£®£¨²»¿¼ÂǵÆË¿µç×èËæζȵı仯£©
£¨1£©µ±S¡¢S1ºÍS2¶¼±ÕºÏ£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬»¬µ½a¶Ëʱ£¬Ð¡µÆÅÝL ¸ÕºÃÕý³£·¢¹â£¬´ËʱµçÁ÷±íµÄʾÊýΪ¶àÉÙ£¿
£¨2£©µ±S¡¢S2±ÕºÏS1¶Ï¿ª£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬»¬µ½Öеãʱ£¬µçÁ÷±íʾÊýΪ0.1A£¬ÄÇô»¬¶¯±ä×èÆ÷µÄ×èÖµ·¶Î§ÊǶàÉÙ£¿
£¨3£©µ±»¬¶¯±ä×èÆ÷µÄ»¬Æ¬»¬µ½b¶Ë£¬²¢±£Ö¤µçÁ÷±íÓÐʾÊýʱ£¬¿ª¹ØÓ¦ÔõÑù±ÕºÏ»ò¶Ï¿ª²ÅÄÜʹµç·µÄ×ܹ¦ÂÊ×îС£¬¸Ã×îС¹¦ÂÊΪ¶àÉÙ£¿
¡¾´ð°¸¡¿£¨1£© 1.1A£»£¨2£©0¡ª100¦¸£»£¨3£© 0.32W
¡¾½âÎö¡¿ (1)µ±S¡¢S1ºÍS2¶¼±ÕºÏ,»¬¶¯±ä×èÆ÷µÄ»¬Æ¬»¬µ½a¶Ëʱ,µÆÅݺÍR2²¢Áª£»´ËʱµÆÅݸպÃÕý³£·¢¹â,ÔòµçÔ´µçѹU£½UL£½6V,ͨ¹ýµÆÅݵĵçÁ÷£ºIL£½£½0.5A£¬Í¨¹ýµç×èR2µÄµçÁ÷£ºI2£½
£½0.6A£¬ÒòΪ²¢Áªµç·ÖÐ,¸É·µçÁ÷µÈÓÚ¸÷֧·µçÁ÷Ö®ºÍ,Òò´ËµçÁ÷±íʾÊý£ºI£½IL+I2£½0.5A+0.6A£½1.1A£»(2) µ±S¡¢S2±ÕºÏS1¶Ï¿ª£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬»¬µ½Öеãʱ£¬R2Óë
´®Áª£¬µçÁ÷±íʾÊýΪ0.1A£¬ÓÉI£½
µÃ£¬´Ëʱ×ܵç×èΪR×Ü
£½60¦¸,
£½R×Ü
R£½60¦¸
£½50¦¸,
£½100¦¸. Òò´Ë»¬¶¯±ä×èÆ÷µÄ×èÖµ·¶Î§ÊÇ0¡ª100¦¸£»(3) µÆÅݵĵç×èRL£½
£½12¦¸,Òò´ËRL>R2,µ±¿ª¹ØS±ÕºÏ,S1±ÕºÏ,S2¶Ï¿ª,»¬Æ¬P»¬µ½b¶Ëʱµç·µç×è×î´ó,µç·ÏûºÄµÄ¹¦ÂÊ×îС,´ËʱµÆÅÝÓëR1´®Áª,´Ëʱµç·¹¦ÂÊ£ºP£½
0.32W.
![](http://thumb2018.1010pic.com/images/loading.gif)