2017年清华大学机械工程系819电工电子学之电工学o电工技术考研题库
● 摘要
2017819o ................ 2 2017819o .............. 13 2017819o .............. 23 2017819o .............. 33 2017819o .............. 42
2017819o
VIP
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1
_____
_____
2 1.550V 10V 40V __________
40V
3
10V
A _____
_____
4
0.707
=_____
5
_____
-8V 6
Y
_____
_____A,
P=_____W,
_____;
_____AP=_____W
7 ____, ____
8 A _____A
1A
9 _____
10____________________
11
A.
B. C. B
12
A. B. C. B
13
A.220V , 300W B.36V , 60W C.110V , 100W D.110V , 500W
C
B D 500W , A 110V 110V 300/4=75W
14
A. B. C.
B
15
A.
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