In the illustrated circuit, U is equal to _____V. Choose A,B,C o r D. Use KVL. The current flows through the 5V voltage source form the upside to downside is equal to 2+1=3A.
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【简答题】A : break B : stay C : point D : smarter E : feel M: This lecture is really boring. Let’s take a(n) 1 outside. W: Oh, I’d like to 2 a little longer. I think it’s interesting. M: Why are you always arg...