ÌâÄ¿ÄÚÈÝ
ij¿ÎÍâѧϰС×éÏëÃè»æ±êÓС°4V¡¢2W¡±µÄСµÆÅݵÄU¡ªIͼÏ󣬳ýµ¼ÏߺͿª¹ØÍ⻹±¸ÓÐÒÔÏÂÆ÷²Ä¿É¹©Ñ¡Ôñ:
A£®µçÁ÷±í£¨Á¿³Ì0.6A£¬ÄÚ×èԼΪ1¦¸£©
B£®µçÁ÷±í£¨Á¿³Ì3.0A£¬ÄÚ×èԼΪ0.2¦¸£©
C£®µçѹ±í£¨Á¿³Ì5.0V£¬ÄÚ×èԼΪ5k¦¸£©
D£®µçѹ±í£¨Á¿³Ì15.0V£¬ÄÚ×èԼΪ15k¦¸£©
E£®»¬¶¯±ä×èÆ÷£¨×î´ó×èֵΪ200¦¸£¬¶î¶¨µçÁ÷100mA£©
F£®»¬¶¯±ä×èÆ÷£¨×î´ó×èֵΪ10¦¸£¬¶î¶¨µçÁ÷1.0A£©
G£®µçÔ´£¨µç¶¯ÊÆΪ6.0V£¬ÄÚ×èԼΪ1.5¦¸£©
£¨1£©ÊµÑéÖÐËùÓõĵçÁ÷±íӦѡ £»µçѹ±íӦѡ £»»¬¶¯±ä×èÆ÷Ӧѡ ¡££¨Ö»ÐèÌîÆ÷²ÄÇ°ÃæµÄ×Öĸ´úºÅ£©
£¨2£©½«Í¼¼×ÖеÄʵÎïÁ¬½Ó³ÉʵÑéËùÐèµÄµç·£¨ÓÐÁ½¸ùµ¼ÏßÒѾ½ÓºÃ£©¡£ÊµÑ鿪ʼʱ£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬Ó¦¸ÃÖÃÓÚ×î ¶Ë¡££¨Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295209812735.png)
£¨3£©¾¹ýÕýÈ·µÄ²Ù×÷£¬²âµÃµÄÊý¾ÝÈçÏÂ±í£º
ÇëÔÚͼÒÒÖÐÃèµã»³öСµÆÅݵÄU¡ªIÇúÏß.
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295211316432.png)
£¨4£©Èôij¸Éµç³ØµÄ¶ËµçѹUÓëµçÁ÷IµÄ¹ØϵÈçͼÒÒÖÐͼÏßaËùʾ£¬ÄÇô½«±¾ÌâÖеÄСµÆÅݽÓÔڸøɵç³ØµÄÁ½¶Ëʱ£¬Ð¡µÆÅݵÄʵ¼Ê¹¦ÂÊÊÇ W.
A£®µçÁ÷±í£¨Á¿³Ì0.6A£¬ÄÚ×èԼΪ1¦¸£©
B£®µçÁ÷±í£¨Á¿³Ì3.0A£¬ÄÚ×èԼΪ0.2¦¸£©
C£®µçѹ±í£¨Á¿³Ì5.0V£¬ÄÚ×èԼΪ5k¦¸£©
D£®µçѹ±í£¨Á¿³Ì15.0V£¬ÄÚ×èԼΪ15k¦¸£©
E£®»¬¶¯±ä×èÆ÷£¨×î´ó×èֵΪ200¦¸£¬¶î¶¨µçÁ÷100mA£©
F£®»¬¶¯±ä×èÆ÷£¨×î´ó×èֵΪ10¦¸£¬¶î¶¨µçÁ÷1.0A£©
G£®µçÔ´£¨µç¶¯ÊÆΪ6.0V£¬ÄÚ×èԼΪ1.5¦¸£©
£¨1£©ÊµÑéÖÐËùÓõĵçÁ÷±íӦѡ £»µçѹ±íӦѡ £»»¬¶¯±ä×èÆ÷Ӧѡ ¡££¨Ö»ÐèÌîÆ÷²ÄÇ°ÃæµÄ×Öĸ´úºÅ£©
£¨2£©½«Í¼¼×ÖеÄʵÎïÁ¬½Ó³ÉʵÑéËùÐèµÄµç·£¨ÓÐÁ½¸ùµ¼ÏßÒѾ½ÓºÃ£©¡£ÊµÑ鿪ʼʱ£¬»¬¶¯±ä×èÆ÷µÄ»¬Æ¬Ó¦¸ÃÖÃÓÚ×î ¶Ë¡££¨Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295209812735.png)
£¨3£©¾¹ýÕýÈ·µÄ²Ù×÷£¬²âµÃµÄÊý¾ÝÈçÏÂ±í£º
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
U/V | 0 | 0.4 | 0.8/ | 1.2 | 1.6 | 2.0 | 2.4 | 2. 8 | 3.2 | 3.6 | 4.0 |
I/A | 0 | 0.12 | 0.22 | 0.30 | 0.36 | 0.40 | 0.43 | 0.46 | 0.48 | 0.49 | 0.50 |
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295211316432.png)
£¨4£©Èôij¸Éµç³ØµÄ¶ËµçѹUÓëµçÁ÷IµÄ¹ØϵÈçͼÒÒÖÐͼÏßaËùʾ£¬ÄÇô½«±¾ÌâÖеÄСµÆÅݽÓÔڸøɵç³ØµÄÁ½¶Ëʱ£¬Ð¡µÆÅݵÄʵ¼Ê¹¦ÂÊÊÇ W.
£¨1£©A¡¢C¡¢F £¨2£©ÊµÎïͼÈçͼ¼×£»×ó£¨3£©U¡ªIͼÏßÈçͼÒÒÖÐb£¨4£©0.8W
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295214449727.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295214449727.png)
ÊÔÌâ·ÖÎö£º£¨1£©µÆÅݵĶµçѹΪ4V£¬Ôòµçѹ±íµÄÁ¿³ÌÑ¡ÓÃ5.0VµÄ£¬µÆÅݵĶµçÁ÷£º
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825002952160866.png)
£¨2£©µÆÅÝÕý³£¹¤×÷ʱµÄµç×è
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/20140825002952176993.png)
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/2014082500295220750826.png)
£¨3£©ÓÃƽ»¬µÄÇúÏßÃèµã×÷ͼ£¬ÈçͼÒÒÖÐbÏߣ®
£¨4£©µçÔ´µÄ·ü°²ÌØÐÔÇúÏßÓëСµÆÅÝ·ü°²ÌØÐÔÇúÏßÁ½ÏߵĽ»µãΪµÆÅݵŤ×÷µã£¬ÓÉͼ¿ÉÖªµÆÅݵĵçÁ÷Ϊ0.4A£¬µÆÅݵĵçѹΪ2.0V£¬Ôò
![](http://thumb.zyjl.cn/pic2/upload/papers/20140825/201408250029522381073.png)
![](http://thumb.zyjl.cn/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿