The circuit is shown as Figure,how many current sources are there in the figure( )[img=536x645]1803a2c0e79fda0.png[/img]
A: 2
B: 3
C: 4
D: 5
A: 2
B: 3
C: 4
D: 5
C
举一反三
- The circuit is shown as Figure,how many current sources are there in the figure( )[img=536x645]1803a2c16457c15.png[/img] A: 2 B: 3 C: 4 D: 5
- According to the circuits shown in figure 3 and the figure 4, the current in Figure 5 i = [img=853x121]180317233475736.jpg[/img] Figure 3 Figure 4 Figure 5 A: -6A B: -4 A C: -2 A D: 6A
- In the circuit shown, in terms of its external characteristics, ( )[img=692x106]17e0be1193fdf7f.png[/img]Figure 1 Figure 2 Figure 3 Figure 4 A: Figure 2 is equivalent to Figure 3 B: Figure 1 is equivalent to Figure 4 C: Figure 1 is equivalent to Figure 2
- In the circuit shown in Figure , the voltage U is ________[img=481x296]18031723660721c.jpg[/img] A: 2V B: -2V C: 6V D: -6V
- Find out the feedback path in the circuit shown in the figure and which is negative feedback .[img=1011x700]1803a2b1332fd88.png[/img] A: A B: B C: C D: D
内容
- 0
Find out the feedback path in the circuit shown in the figure and which is positive feedback.[img=1011x700]1803a2b4bd54568.png[/img] A: A B: B C: C D: D
- 1
Find out the feedback path in the circuit shown in the figure and which is only ac feedback.[img=1011x700]1803a2b4bfbe0ef.png[/img] A: A B: B C: C D: D
- 2
As shown in the figure, which of the following is true? [img=399x398]1803a03c60cf5d2.png[/img][img=365x385]1803a03c6c3b38b.png[/img] A: FRC = F’RC = 0 B: FRC = 0, F’RC ≠ 0 C: FRC ≠ 0, F’RC ≠ 0 D: FRC ≠ 0, F’RC = 0
- 3
设[img=84x22]17e0ab7201ab5da.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=（ ） A: 1/5 B: 2/5 C: 3/5 D: 4/5
- 4
设[img=84x22]17e43a3ff587368.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=（ ） A: 1/5 B: 2/5 C: 3/5 D: 4/5