1
S
2
R
3
R
1
S
1
A
R
2
鍥?/p>
7-22
鍥?/p>
7-23
鍥?/p>
7-21
浜烘暀鐗堜節骞寸骇鐗╃悊銆?/p>
绗崄涓冪珷
娆у瀹氬緥
銆嬬粌涔犻
(A
鍗?/p>
)
锛堝惈绛旀锛?/p>
涓�锛庡～绌洪锛堟瘡绌?/p>
1
鍒嗭紝鍏?/p>
17
鍒嗭級
1
锛庣數瑙嗕俊鍙峰湪澶╃嚎涓婃劅搴旂殑鐢靛帇绾︿负
0.1 mV
锛屽悎
V
锛庣粡楠岃瘉鏄庯紝
鍙湁
鐨勭數鍘嬪浜轰綋鏉ヨ鏄畨鍏ㄧ殑锛庡搴數璺殑鐢靛帇涓?/p>
V
锛庡搴腑甯哥敤鐨勪竴绉嶇伅娉＄殑鐢甸樆
鏄?/p>
1210惟
锛岃嫢鐢?/p>
K惟
浣滃崟浣嶏紝鍙互鍐欐垚
K惟
锛?/p>
2
锛庡鍥?/p>
7-21
锛岀數婧愮數鍘嬩繚鎸佷笉鍙橈紝鐢甸樆
R
1
=
R
2
=
R
3
= 10
惟
銆傝浣?/p>
R
2
銆?/p>
R
3
骞惰仈锛屽簲闂?/p>
鍚堝紑鍏?/p>
锛?/p>
姝ゆ椂鐢垫祦琛ㄧ殑绀烘暟涓?/p>
I
1
锛?/p>
瑕佷娇
R
1
銆?/p>
R
2
涓茶仈锛?/p>
寮�鍏?/p>
S
1
銆?/p>
S
2
搴?/p>
(
濉?/p>
鈥?/p>
鏂?/p>
寮�
鈥?/p>
鎴?/p>
鈥?/p>
闂悎
鈥?
锛屾鏃剁數娴佽〃鐨勭ず鏁颁负
I
2
锛涘垯
I
1
锔?/p>
I
2
=
銆?/p>
3
锛庡皬杈夊悓瀛︾敤浼忓畨娉曟祴瀵间綋鐨勭數闃伙紝瀹為獙鏂规鍜屾搷浣滆繃绋嬪潎姝ｇ‘锛屼袱琛ㄧ殑杩炴帴鍜岀ず鏁?/p>
濡傚浘
7-22
鎵�绀?/p>
.
杩欎釜瀹為獙鍙互鏀硅繘鐨勫湴鏂规槸
_______________
锛屼綘杩欐牱鏀圭殑鐞嗙敱鏄?/p>
_________________________.
4.
鏌愬悓瀛﹀湪鐢ㄦ湁涓や釜閲忕▼鐨勭數鍘嬭〃锛?/p>
0
锝?/p>
3V
鍜?/p>
0
锝?/p>
15V
锛夋祴鐢变袱鑺傚共鐢垫睜涓茶仈缁勬垚鐢垫睜
缁勭殑鐢靛帇鏃讹紝
璁板綍鐨勬槸
10V
銆?/p>
浠栧嚭鐜伴敊璇殑鍘熷洜鏄?/p>
____________________
___
锛?/p>
瀹為檯
鐢靛帇搴旀槸
___________
銆?/p>
5
锛庢濮嗗畾寰嬬殑琛ㄨ揪寮忎负
锛屽湪鐢靛帇
U
涓�瀹氱殑鏉′欢涓嬶紝瀵间綋鐨勭數闃?/p>
R
瓒婂皬锛?/p>
閫氳繃瀵间綋鐨勭數娴?/p>
I
瓒?/p>
銆備袱涓數闃?/p>
R
1
鍜?/p>
R
2
锛?/p>
R
1
锛?/p>
R
2
锛変覆鑱旀帴鍏ョ數璺腑锛岄�氳繃
R
1
鐨勭數
娴?/p>
锛堝～
鈥?/p>
澶т簬
鈥?/p>
銆?/p>
鈥?/p>
绛変簬
鈥?/p>
鎴?/p>
鈥?/p>
灏忎簬
鈥?/p>
锛夐�氳繃
R
2
鐨勭數娴併�?/p>
锛?/p>
6
锛庢煇鐢ㄧ數鍣ㄧ殑鐢甸樆鏄?/p>
120
惟
锛岃浣跨數璺腑鐨勬�荤數娴佺殑
1/5
閫氳繃杩欎釜鐢ㄧ數鍣紝灏辫窡杩欎釜鐢?/p>
鐢靛櫒
鑱斾竴涓?/p>
惟
鐨勭數闃伙紱
鑻ヨ浣跨敤鐢靛櫒涓ょ鐨勭數鍘嬫槸鎬荤數鍘嬬殑
1/5
锛?/p>
鍒欏簲璺熻繖
涓敤鐢靛櫒
鑱斾竴涓?/p>
惟
鐨勭數闃伙紟
浜岋紟閫夋嫨棰橈紙姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庡湪杩涜瀹跺涵鐢佃矾鐨勮淇椂锛屽鏋滀笉灏忓績浣跨櫧鐐界數鐏伅搴х殑涓ゆ牴鐢电嚎鐩告帴瑙︼紝闂悎寮�
鍏虫帴閫氱數婧愶紝浼氬嚭鐜颁笅鍒楀摢绉嶆儏鍐碉紙
锛?/p>
A
锛庣數鐏殑鐏笣琚儳鏂?/p>
B.
鐢电伅姝ｅ父鍙戝厜
C.
鐢电伅鍙戝嚭鏆楁贰鐨勫厜
D.
淇濋櫓涓濈啍鏂?/p>
2
锛庡皬寮哄悓瀛﹀湪鎺㈢┒涓茶仈鐢佃矾鐢垫祦瑙勫緥鐨勫疄楠屼腑锛屾寜鍥?/p>
7-23
杩炴帴濂戒簡鐢佃矾锛屽悎涓婂紑鍏?/p>
S
鍚庯紝鍙戠幇涓ょ伅鍧囦笉鍙戝厜锛庝负妫�娴嬪嚭鐢佃矾鏁呴殰锛屼粬灏嗙數鍘嬭〃鎺ュ埌鐏?/p>
L
1
涓ょ鏉ユ祴閲忕數鍘嬶紝鍙?/p>
鐜扮數鍘嬭〃鏈夋槑鏄剧ず鏁帮紝鑰岀數娴佽〃绀烘暟鍑犱箮涓洪浂锛屽垯鐢佃矾鏁呴殰鍙兘鏄紙
锛?/p>
A.
鐏?/p>
L
1
鐭矾
B.
鐏?/p>
L
2
鏂矾
C.
鐢垫祦琛ㄧ儳鍧忎簡
D.
鐏?/p>
L
1
鏂矾
3
锛?/p>
濡傚浘
7-24
鎵�绀猴紝
褰撴粦鍔ㄥ彉闃诲櫒鐨勬粦鐗囧悜
N
绔粦鍔ㄦ椂锛?/p>
鐢垫祦琛ㄥ拰鐢靛帇琛ㄧず鏁扮殑鍙樺寲鎯?
鍐垫槸锛?/p>
锛?/p>
鍥?/p>
7-24