璇曢锛?/p>
1-1
锛?/p>
灏嗘纭瓟妗堢殑搴忓彿濉叆鍦嗘嫭鍙峰唴锛堟瘡涓┖
2
鍒嗭紝鍏?/p>
30
鍒嗭級
銆?/p>
1.
褰撶數婧愮殑绔數鍘嬩竴瀹氭椂锛岃礋杞界數闃昏秺澶э紝鐢垫簮鐨勮緭鍑哄姛鐜囷紙
锛?/p>
銆?/p>
a.
瓒婂ぇ
b.
瓒婂皬
c.
涓嶅彉
2.
鐢佃矾濡備笅鍥炬墍绀猴紝宸茬煡缃戠粶
N
鐨勭鍙ｇ數鍘嬪拰鐢垫祦涓?/p>
U
= 220V
锛?/p>
I
=
锛?/p>
1 A
锛?/p>
璇存槑璇ユ柟妗嗙瓑鏁堜负锛?/p>
锛?/p>
銆?/p>
a.
鐢垫簮
b.
璐熻浇
c.
涓嶈兘纭畾
3.
褰撶悊鎯崇數鍘嬫簮鐨勭數鍔ㄥ娍涓�瀹氭椂锛屽叾杈撳嚭鐢靛帇锛?/p>
锛?/p>
銆?
a.
绛変簬鍏剁數鍔ㄥ娍
b.
鍙栧喅浜庤礋杞界殑澶у皬
c.
鍙栧喅浜庤礋杞界殑澶у皬鍜岀數鍔ㄥ娍
4.
鍙犲姞鍘熺悊鍙互鐢ㄤ簬璁＄畻绾挎�х數闃诲厓浠朵笂鐨勶紙
锛?/p>
銆?/p>
a.
鐢靛帇鍜屽姛鐜?/p>
b.
鐢垫祦鍜屽姛鐜?/p>
c.
鐢垫祦鍜岀數鍘?/p>
5.
甯哥敤涓囩敤琛ㄧ殑鈥?/p>
R
脳
1000
鈥濇。鏉ユ鏌ュ井娉曟暟閲忕骇浠ヤ笂鐨勭數瀹瑰櫒鐨勮川閲忋�傚鍦ㄦ
鏌ユ椂鍙戠幇涓嬪垪鐜拌薄锛屽垯鍛堢幇锛?/p>
锛夌幇璞＄殑鐢靛鍣ㄦ槸濂界殑銆?/p>
a.
鎸囬拡婊″亸杞�?/p>
b.
鎸囬拡涓嶅亸杞?/p>
c.
鎸囬拡寰堝揩鍋忚浆鍚庡張鍥炲埌鍘熷埢搴︼紙鈭烇級澶?/p>
6.
宸茬煡鏌愪氦娴佺數璺殑绔數鍘嬪拰鐢垫祦鍒嗗埆涓猴細
u
= 311sin
蠅
t
V
锛?/p>
i
= 45sin (
蠅
t
锛?/p>
45
o
)
A
锛岀敱姝ゅ彲鐭ヨ鐢佃矾鐨勬�ц川涓猴紙
锛変氦娴佺數璺�?/p>
a.
鐢垫劅鎬?/p>
b.
鐢靛鎬?/p>
c.
鐢甸樆鎬?/p>
<![endif]>
7.
鍥剧ず浜ゆ祦鐢佃矾涓紝宸茬煡鏀矾鐢垫祦琛ㄧ殑璇绘暟鍒嗗埆涓?/p>
I
1
= 4 A
锛?/p>
I
2
= 4 A
锛屽垯
鎬荤數娴佽〃鐨勮鏁颁负锛?/p>
锛?/p>
銆?/p>
a. 8 A
b. 4
鈭?/p>
2
A
c. 2
鈭?/p>
2
A
8.
鍥剧ず鐢佃矾涓紝宸茬煡寮�鍏虫柇寮�鍓嶇嚎鍦堜腑鐨?/p>
鐢垫祦涓?/p>
0.1 A
锛岃嫢鐢靛帇琛ㄧ殑鍐呴樆涓?/p>
5 k
惟锛?/p>
鍒欏紑鍏虫柇寮�鐬棿鐢靛帇琛ㄤ袱绔殑鐢靛帇涓猴紙锛?/p>
銆?/p>
a. 500 V
+
U
S
锛?/p>
R
L
V
S
U
I
N