电子系统基础期末考试复习电阻电路例题.pdf
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Question1：
PleaseusesourcetransformationtofindthecurrentIinthefollowingcircuit.[8
Marks]
Solution:
Usesourcetransformationtoredrawthecircuit,wewillget:
3Ω
I
-
15V
7Ω
-
8V
4Ω
[5Marks]
So:
15−8
I==0.5A[3Marks]
3+4+7
Question2:
Pleaseusesourcetransformationtofindthecurrentiinthefollowingcircuit.[8
2
Marks]
R1
i2
IsR2R3
Vs
+
R4
Solution:
Redrawtheoriginalcircuitasthefollowing:
[5Marks]
Thenthecurrentiis:
2
RI
i2=3s[3Marks]
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