涓婃捣
2015
骞翠笂鍗婂勾鐢垫皵宸ョ▼甯堛�婂彂杈撳彉鐢点�?/p>
锛氶伩闆峰櫒鑰冭瘯
璇曢
涓�銆佸崟椤归�夋嫨棰橈紙鍏?/p>
25
棰橈紝姣忛
2
鍒嗭紝姣忛鐨勫閫夐」涓紝鍙湁
1
涓簨鏈�绗﹀悎
棰樻剰锛?/p>
1
銆侀噰鐢ㄤ汉宸ヨˉ鍋垮悗锛屾渶澶ц绠楄礋鑽锋椂鐨勫姛鐜囧洜鏁板簲涓嶄綆浜?/p>
__
銆?/p>
A
锛?/p>
0.70
B
锛?/p>
0.80
C
锛?/p>
0.90
D
锛?/p>
0.95
2
銆?/p>
闀跨骞惰仈绠℃
1
銆?/p>
2
锛?/p>
涓ょ娈电洿寰勭浉绛?/p>
d1=d2
锛?/p>
娌跨▼闃诲姏绯绘暟鐩哥瓑锛?/p>
闀垮害
l1=2l2
锛?/p>
涓ょ娈电殑娴侀噺姣?/p>
Q1/Q2
涓猴紙锛?/p>
銆?/p>
A
锛?/p>
0.71
B
锛?/p>
0.50
C
锛?/p>
1.41
D
锛?/p>
2.00
3
銆佸湪浣庡帇閰嶇數绾胯矾鐨勪繚鎶や腑锛屾湁鍏崇煭璺繚鎶ょ數鍣ㄨ璁句綅缃紝涓嬪垪璇存硶鍝釜鏄
纭殑锛堬級
A
锛庨厤鐢电嚎璺悇鐩镐笂鍧囧簲瑁呰鐭矾淇濇姢鐢靛櫒
B
锛?/p>
N
绾垮簲瑁呰鍚屾椂鏂紑鐩哥嚎鐭矾淇濇姢鐢靛櫒
C
锛?/p>
N
绾夸笉搴旇璁剧煭璺繚鎶ょ數鍣?/p>
D
锛?/p>
瀵逛簬涓�х偣涓嶆帴鍦颁笖
N
绾夸笉寮曞嚭鐨勪笁鐩镐笁绾块厤鐢电郴缁燂紝
鍙彧鍦ㄤ袱鐩镐笂瑁呰淇?/p>
鎶ょ數鍣?/p>
4
銆佽法姝ョ數鍘嬫槸鎸囦汉娲诲姩鍦ㄥ叿鏈夊垎甯?/p>
__
鐨勫湴闈紝浜虹殑涓よ剼涔嬮棿鎵�鎵垮彈鐨勭數浣嶅樊銆?/p>
A
锛庣數娴?/p>
B
锛庣數鍘?/p>
C
锛庣數浣?/p>
D
锛庢帴鍦扮數闃?/p>
5
銆佸湪鐗瑰埆娼箍鐨勫満鎵�銆佸鐢佃壇濂界殑鍦伴潰銆侀攨鐐夋垨閲戝睘瀹瑰櫒鍐呭伐浣滅殑鐓ф槑鐢垫簮鐢?/p>
鍘嬩笉寰楀ぇ浜?/p>
__
銆?/p>
A
锛?/p>
48V
B
锛?/p>
36V
C
锛?/p>
24V
D
锛?/p>
12V
6
銆侀
2-2
鍥句腑璁句簩鏋佺鍏锋湁鐞嗘兂鐗规�э紝
ui=1.0sinωtV
锛?/p>
U=2V
銆?/p>
uo
鐨勬尝褰?/p>
濡傚浘锛堬級鎵�绀恒�?/p>
A
锛?/p>
(a)
B
锛?/p>
(b)
C
锛?/p>
(c)
D
锛?/p>
(d)
7
銆佸浜庡畨鍏ㄩ槻鑼冪郴缁熶腑闆嗘垚寮忓畨鍏ㄧ鐞嗙郴缁熺殑璁捐锛屼笅鍒楀摢椤逛笉绗﹀悎瑙勮寖璁捐