2017年西南大学药学院919工程综合[专业硕士]之电工学o电工技术考研强化模拟题
● 摘要
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1 52
2017919[]o
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1
2 _____
3 0.5250V , 200V =_____
4 220V 1000W 110V P=_____
250W
5 --Y
2 52
380V
_____P _____
P
110V
_____
=_____
3; 3
6 _____
7
t =_____
=_____V
=_____
8 S t=0
=_____V
_____ms
9
P=_____w
_____
Z=_____
10__________
11
A.
3 52
B. C. B
12
T
C
13
C
14110V/100W110V/40W
A. B.100W C.40W C
100W
40W
40W
4 52
220V