1. I = 80/100 = 0.8
2. Vr = 100-80 = 20
3. R = 20 / 0.8 = 25
23 一電壓源輸出開路時,輸出端電壓 100V,接上 100Ω之負載電阻時,電壓..-阿摩線上測驗