[課業] 請問基本電學的節點電壓
6V
|----(-+)----
| |↙z
x|----|--3Ω-|-----
| | | |
8V- | | |
+ 4Ω 1Ω ↑6A
| | | |
|----|-3Ω--|----|
y
題目問：(a)若y接地時 x節點電壓為多少？
(b)若z點電位0,則x,y節點之相對電壓為多少?(即Vx-Vy)
解答我完全看不懂... (a) Y接地時 由Vx-Vy=0-2=-2 Vx=-2+Vy=-2V
(b) Z接地時 Vx-Vy=-2V
其實有三個問題 原先問如果x接地求Vy 這個很容易
可是上面兩個問題 完全不知道怎麼列式的 跪求指點 感恩
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