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(ELEC102)test1_pasth.pdf
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(13)
(161 )
4m
12V
4mA
6V
1k.
6V
14m
10m
0V
14V
22m
16m
(4)
(5)
(4)
2
(14)
0V
10V
10V
10V
10V
(6)
10V
Text Box: 2. In the circuit, find IO . (14)
(16)
3
(7)
(7)
(2)
Va
Va
2k.
4k.
1m
(17)
4
(5)
(3)
Rth
(6)
(3)
Text Box: 4. In the circuit, when R = .V.., Vo = 4V.When R = 2k.., Io is 1mA.Find the Norton equivalent for the network. Pl
Text Box: when R = .V.., Vo = 4V, Hence Voc of amplifier = 4V.
Text Box: Find Thevenin equivalent of network
Text Box: Norton equivalent
5
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(2)
(7)
(3)
(6)
Text Box: A meter has the following frequency curve. (a) Estimate the bandwidth of the meter. (b) The meter is used to measur
Text Box: (c)
Text Box: X10 probe can increase the Rin of CRO by 10 times. CRO can then measure voltage more accurately.
Text Box: (d)
Text Box: 0V
Text Box: (a)
Text Box: (b)
Text Box: 100kHz
(18)
+
-
1mH
I(t)
6
Text Box: 6. For the given V(t), find and plot I(t). Given X = 1mH, I(0) = 1A. Find also the maximum energy stored in X. (18
Text Box: (5)
Text Box: (6)
Text Box: (3)
Text Box: (4)
7
(12)
Text Box: If E = 1mF, find i(t). Find the power consumed or delivered by C . Is C a passive element? (12)
Text Box: P = V*i(t) = (6V-1V)(-1A) = 5W delivered
Text Box: active element
Text Box: If E = 1mF
8
(15)
(6)
(6)
(3)
2k.
4k.
6V
2k.
3V
4k.
3mA
1.5m
1.5m
0V
Text Box: The switch has been closed for a long time. At t = 0 second, the switch is opened. Find v(0) , i(0), and i(.V) .
Text Box: t < 0
(14)
9
At t < 0, the switch is at terminal aand the circuit is at steady state. Att = 0 , the switch is switched to terminal b.Find VO(0) , IO(0), and VO(). (14)
6k.
0V
6k.
-6V
(6)
(5)
(3)
6k.
t = 0
b
Text Box: t < 0
Text Box: 24V
(20)
10
2.
V1
2.
V1
R
V1
0.5.
4.
2.
4V
(11)
Text Box: ?????
Text Box: Vo = 0
Text Box: (9)