ÌâÄ¿ÄÚÈÝ
11£®£¨1£©ÀûÓõ¥·Ö×ÓÓÍĤ·¨¹À²â·Ö×ÓµÄÖ±¾¶£¬ÐèÒª²âÁ¿µÄÎïÀíÁ¿ÊÇBA£®Ò»µÎÓ͵ÄÌå»ýºÍËüµÄÃܶÈ
B£®Ò»µÎÓ͵ÄÌå»ýºÍËüÉ¢³ÉÓÍĤµÄ×î´óÃæ»ý
C£®Ò»µÎÓ͵ÄÖÊÁ¿ºÍËüµÄÃܶÈ
D£®Ò»µÎÓÍÐγÉÓÍĤµÄºñ¶ÈºÍËüµÄÃܶÈ
£¨2£©Ä³Í¬Ñ§ÔÚÓÃÓÍĤ·¨¹À²â·Ö×ÓÖ±¾¶µÄʵÑéÖУ¬¼ÆËã½á¹ûÃ÷ÏÔÆ«´ó£¬¿ÉÄÜÊÇÓÉÓÚBCD
A£®ÓÍËáÖк¬ÓдóÁ¿¾Æ¾«
B£®½«ÓÍËá¾Æ¾«ÈÜÒºµÄÌå»ýÖ±½Ó×÷ΪÓÍËáµÄÌå»ý½øÐмÆËã
C£®¼ÆËãÓÍĤÃæ»ýʱ£¬ÉáÈ¥ÁËËùÓв»×ãÒ»¸ñµÄ·½¸ñ
D£®Ë®ÃæÉÏðò×Ó·ÛÈöµÃ¶à£¬ÓÍĤûÓгä·ÖÕ¹¿ª
£¨3£©ÔÚ¡°ÓÃÓÍĤ·¨¹À²â·Ö×ӵĴóС¡±ÊµÑéÖУ¬ÔÚ²£Á§°åÉÏÃè³öÓÍĤµÄÂÖÀª£¬Ëæºó°Ñ²£Á§°å·ÅÔÚ×ø±êÖ½ÉÏ£¬ÆäÐÎ×´ÈçͼËùʾ£¬×ø±êÖ½ÉÏÕý·½ÐÎС·½¸ñµÄ±ß³¤Îª10mm£¬¸ÃÓÍËáĤµÄÃæ»ýÊÇ8¡Á10-3m2£»ÈôÒ»µÎÓÍËá¾Æ¾«ÈÜÒºÖк¬Óд¿ÓÍËáµÄÌå»ýÊÇ4¡Á10-6mL£¬ÔòÓÍËá·Ö×ÓµÄÖ±¾¶ÊÇ5¡Á10-10m£®£¨ÉÏÊö½á¹û¾ù±£Áô1λÓÐЧÊý×Ö£©
·ÖÎö Óá°ÓÍĤ·¨¹À²â·Ö×Ó´óС¡±µÄʵÑéÔÀí£ºÈÏΪÓÍËá·Ö×ÓÊǽôÃÜÅÅÁеģ¬¶øÇÒÐγɵÄÓÍĤΪµ¥·Ö×ÓÓÍĤ£¬È»ºóÓÃÿµÎÓÍËá¾Æ¾«ÈÜÒºËùº¬ÓÍ´¿ËáÌå»ý³ýÒÔÓÍĤÃæ»ýµÃ³öµÄÓÍĤÃæ»ýºñ¶È£¬¼´ÎªÓÍËá·Ö×ÓÖ±¾¶£»
ÔÚÓÍĤËùΧ³ÉµÄ·½¸ñÖУ¬ÏÈÊý³ö×ø±êÖ½ÉÏ·½¸ñµÄ¸öÊý£¬²»×ã°ë¸öÉáÈ¥£¬¶àÓÚ°ë¸öµÄËãÒ»¸ö£¬¼´¿Éͳ¼Æ³öÓÍËᱡĤµÄÃæ»ý£»¸ù¾Ýd=$\frac{V}{S}$Çó³ö·Ö×ÓÖ±¾¶£®
½â´ð ½â£º£¨1£©¸ù¾ÝʵÑéÔÀí£ºÓÍËá·Ö×ÓÊǽôÃÜÅÅÁеģ¬ÔÚË®ÃæÉÏÐγɵ¥·Ö×ÓÓÍĤ£¬Óô¿ÓÍËáµÄÌå»ý³ýÒÔÓÍĤÃæ»ýµÃ³öµÄÓÍĤÃæ»ýºñ¶È£¬¼´ÎªÓÍËá·Ö×ÓÖ±¾¶£®ËùÒÔÐèÒª²âÁ¿µÄÁ¿Óд¿ÓÍËáµÄÌå»ýºÍ´¿ÓÍËáÔÚË®ÃæÉÏÐγÉÓÍĤµÄÃæ»ý£®¹ÊBÕýÈ·£¬A¡¢C¡¢D´íÎó£®
¹ÊÑ¡£ºB£®
£¨2£©¼ÆËãÓÍËá·Ö×ÓÖ±¾¶µÄ¹«Ê½ÊÇd=$\frac{V}{S}$£¬VÊÇ´¿ÓÍËáµÄÌå»ý£¬SÊÇÓÍĤµÄÃæ»ý£®
A¡¢¼ÆËãʱÀûÓõÄÊÇ´¿ÓÍËáµÄÌå»ý£¬Èç¹ûº¬ÓдóÁ¿µÄ¾Æ¾«£¬ÔòÓÍËáµÄʵ¼ÊÌå»ýƫС£¬ÔòÖ±¾¶½«Æ«Ð¡£¬¹ÊA´íÎó£»
B¡¢¼ÆËãʱ°ÑÓÍËá¾Æ¾«ÈÜÒºµ±³ÉÁË´¿ÓÍËᣬÌå»ýÆ«´ó£¬ÔòdÆ«´ó£¬¹ÊBÕýÈ·£»
C¡¢¼ÆËãÓÍĤÃæ»ýʱÉáÈ¥ÁËËùÓв»×ãÒ»¸ñµÄ·½¸ñ£¬S½«Æ«Ð¡£¬¹ÊµÃµ½µÄ·Ö×ÓÖ±¾¶½«Æ«´ó£¬¹ÊCÕýÈ·£»
D¡¢Ë®ÃæÉÏðò×Ó·ÛÈöµÃ½Ï¶à£¬ÓÍĤûÓгä·ÖÕ¹¿ª£¬Ôò²âÁ¿µÄÃæ»ýSƫС£¬µ¼Ö½á¹û¼ÆËãÆ«´ó£¬¹ÊDÕýÈ·£»
¹ÊÑ¡£ºBCD£»
£¨3£©ÔÚΧ³ÉµÄ·½¸ñÖУ¬²»×ã°ë¸öÉáÈ¥£¬¶àÓÚ°ë¸öµÄËãÒ»¸ö£¬¹²ÓÐ80¸ö·½¸ñ£¬¹ÊÓÍËáĤµÄÃæ»ýΪ S=80¡Á£¨10¡Á10-3£©2 m2=8¡Á10-3m2
ÓÍËá·Ö×ÓÖ±¾¶Îª d=$\frac{V}{S}$=$\frac{4¡Á1{0}^{-6}¡Á1{0}^{-6}}{8¡Á1{0}^{-3}}$m=5¡Á10-10m
¹Ê´ð°¸Îª£º£¨1£©B£»£¨2£©BCD£»£¨3£©8¡Á10-3£»5¡Á10-10
µãÆÀ ±¾Ì⿼²éÁËÓá°ÓÍĤ·¨¡±¹À²â·Ö×ÓÖ±¾¶´óСµÄʵÑ飬ÕýÈ·½â´ðʵÑéÎÊÌâµÄÇ°ÌáÊÇÃ÷ȷʵÑéÔÀí£¬Äܽ¨Á¢ÎïÀíÄ£ÐÍÀí½â²¢ÕÆÎÕʵÑéµÄÔÀíºÍ·½·¨£»
±¾ÌâÊÇÒÔÓÍËá·Ö×Ó³ÊÇòÐÍ·Ö²¼ÔÚË®ÃæÉÏ£¬ÇÒÒ»¸ö°¤Ò»¸ö£¬´Ó¶ø¿ÉÒÔÓÉÌå»ýÓëÃæ»ýÏà³ýÇó³öÓÍĤµÄºñ¶È£®
A£® | ͼÏßaÒ»¶¨ÊÇÎïÌåÊÜˮƽÀÁ¦Ê±µÄͼÏó | |
B£® | ÎïÌåËùÊܵÄˮƽÀÁ¦Ò»¶¨µÈÓÚ0.2N | |
C£® | ÎïÌåËùÊܵÄĦ²ÁÁ¦Ò»¶¨µÈÓÚ0.2N | |
D£® | ÎïÌåÓëˮƽÃæ¼ä¶¯Ä¦²ÁÒòÊý¿ÉÄܵÈÓÚ$\frac{1}{15}$ |
A£® | ËÙ¶ÈÔö´ó | B£® | ½ÇËÙ¶ÈÔö´ó | C£® | ÖÜÆÚ±ä´ó | D£® | °ë¾¶¼õÉÙ |
A£® | ͨ¹ýRµÄ½»Á÷µçµÄƵÂÊΪ100 Hz | |
B£® | µçÁ÷±íA2µÄʾÊýΪ$\sqrt{2}$A | |
C£® | ´Ëʱ±äѹÆ÷µÄÊäÈ빦ÂÊΪ22 W | |
D£® | ½«PÑØÄæʱÕë·½ÏòÒƶ¯Ò»Ð©£¬µçÁ÷±íA1µÄʾÊý±äС |
A£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊǺãÁ¦×÷ÓÃϵÄÔ˶¯ | |
B£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊǼÓËٶȱ£³Ö²»±äµÄÔ˶¯ | |
C£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊǽÇËٶȱ£³Ö²»±äµÄÔ˶¯ | |
D£® | ÔÈËÙÔ²ÖÜÔ˶¯ÊµÖÊÉϾÍÊÇËٶȲ»±äµÄÔ˶¯ |
A£® | Ô²»·¾ßÓÐÊÕËõµÄÇ÷ÊÆ | |
B£® | Ô²»·ÖвúÉúµÄ¸ÐÓ¦µçÁ÷ΪÄæʱÕë·½Ïò | |
C£® | Ô²»·ÖÐa¡¢bÁ½µãµÄµçѹUab=|$\frac{1}{4}$k¦Ðr2| | |
D£® | Ô²»·ÖвúÉúµÄ¸ÐÓ¦µçÁ÷´óСΪ-$\frac{krS}{3¦Ñ}$ |
A£® | ¼×µÄÆô¶¯Ê±¿Ì±ÈÒÒÔçt1 | B£® | Á½³µÔ˶¯ÆðÀ´ºó¼×µÄËٶȱÈÒÒ´ó | ||
C£® | µ±t=t2ʱ£¬Á½ÎïÌåÏàÓö | D£® | µ±t=t3ʱ£¬Á½ÎïÌåÏà¾àx1 |