瓢氏浩摄乓脆思唐咐甲插荆痉
对应课程:点击查看
起止时间:2020-03-10到2020-05-31
更新状态:已完结
1. Basic concepts and basic laws in circuit Test for chapter 1
1、 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.
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
2、 Calculate the power for element B shown in circuit as figure1, and determine it is source or sink.
A:-12W, source
B:12W, source
C:-12W, sink
D:12W, sink
答案: -12W, source
3、 The equivalent resistance of the circuit in Figure is（ ）
A:R1//(R2+R4//R3）
B:R1//R2+R4//R3
C:R1+R2+R4//R3
D:R1+R2+R3+R4
答案: R1//(R2+R4//R3）
4、 as the figure, The relation between the current I1 and I2 is ( )
A:I1+ I2 =1
B:I1+1 =I2
C:I1=I2 +1
D:I1+I2 =-1
答案: I1+1 =I2
5、 As shown in figure, which expression is not correct
A:va=vb
B:va=vc
C:vb=-vc
D:va=-vc
答案: va=vc
6、 Find the current i as shown in the circuit.
答案: 2A
7、 Find R in the circuit if v2 =8V.
答案: 6Ω
8、 Find the current I shown in circuit.
答案: 1.4A
9、 The resistances are given, also a current as shown figure, Use Ohm’s law, KVL and KCL to find the voltage source Vx.
答案: 15V
10、 Find the current i1 and i2 in the circuit.
答案: i1=4A，i2=1A
2 techniques of circuit analysis Test for chapter 2
1、 1．In the circuit shown in Figure, the current IS is______
A:1.5A
B:-1.5A
C:3A；
D:－3A
答案: －3A
2、 In the circuit shown in Figure, the current I is______
A:2A
B:－2A
C:3A
D:－3A
答案: －2A
如需购买完整答案，请点击下方红字：
获取更多中国大学mooc慕课答案，请点击这里，进入mooc.mengmianren.com
端摧彪匆咖魔绦熔刀揪枫朽临