大学MOOC 电工电子学(ElectricandElectronics)(江苏大学)1454433171 最新慕课完整章节测试答案
1.Basicconceptsandbasiclawsincircuit
Testforchapter1
1、单选题:
the reference directions and results are as shown in the circuit. someone changes the reference direction of current to opposite one , then what are the results for voltage and current.
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选项:
A: Vb=12V, ib=-1A
B: Vb=-12V, ib=1A
C: Vb=12V, ib=1A
D: Vb=-12V, ib=-1A
答案: 【 Vb=12V, ib=-1A】点我阅读全文
