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Page 12
Circuit Analysis
Exercise 16
Refer to the transistor circuit. Keep in mind that although we do not know the current-voltage relationship for the device, it still obeys both KCL and KVL. (a) if ID=1.5mA, computer VDS. (b) if ID=2mA and VG=3V, computer VGS.
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Page 10
Exercise 8
Circuit Analysis
(a) Calculate vy, if iz = - 3A (b) What voltage would need to replace the 5-V source to obtain vy = - 6V if iz = 0.5A
1.8v3
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Page 14
Exercise 24
Circuit Analysis
If gm =25×10-3 siemens and vs = 10cos5t mV, find v0(t) ×
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Page 15
Exercise 27
Find the power absorbed by each element
Circuit Analysis
vx
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Page 16
Exercise 30
Circuit Analysis
(a) Apply the technique of single-node pair analysis to the upper right node and find ix. (b) Now work with the upper left node and find v8. (c) How much power is the 5-A source generating?
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Page 24
Circuit Analysis
Chapter
3
Basic Nodal and Mesh Analysis
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Page 25
Exercise 3
Circuit Analysis
(a) Use nodal analysis to determine v1 and v2. (b) Computer the power absorbed by the 6- resistor
V R2
R2 = VS R1 + R2
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Page 7
Exercise 18
Circuit Analysis
It is not uncommon to see a variety of subscripts on voltages, currents, and resistors in the circuit diagrams. In the circuit, the voltage vπ appears across the resistor named rπ , compute vout if vs=0.01cos1000tV.
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Page 4
Exercise 11
Circuit Analysis
A fuse must be selected for a certain application. You may choose from fuses rated to “blow” when the current exceeds 1.5A, 3A, 4.5A, or 5A. If the supply voltage is 110A, and the maximum allowable power dissipation is 500W, which fuse should be chosen, and why?
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Page 11
Exercise 12
Circuit Analysis
Use Ohm’s law and Kirchhoff’s law to find (a) vx ; (b) iin ; (c) Is ; (d) the power provided by the dependent source
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Page 5
Exercise 13
Circuit Analysis
A certain voltage is +10V for 20ms and -10V for the succeeding 20ms and continues oscillating back and forth between these two values at 20-ms intervals. The voltage is present across a 50- resistor, Over any 40-ms interval find (a) The maximum value of the voltage (b) The average value of the voltage (c) The average value of the resistor current (d) The maximum value of the absorbed power (d) The average value of the absorbed power
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Page 19
Exercise 40
Find Req for each of the resistive networks
Circuit Analysis
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Page 20
Exercise 40
Find Req for each of the resistive networks
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Page 17
Exercise 35
Choose v1 to obtain a current ix of 2A
Circuit Analysis
v1 = 2+3=5A
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Page 18
Exercise 36
Find v
Circuit Analysis
Circuit Analysis
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Page 3
Exercise 7
Circuit Analysis
Determine which of the five sources are being charged (absorbing positive power), and show that the algebraic sum of the five absorbed power values is zero.
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Page 13
Exercise 19
Circuit Analysis
Find v3 if (a) the 90-V source generates 180W; (b) the 90-V source absorbs 180W; (c) the dependent source generates 100W; (c) the dependent source absorbs 100W
Circuit Analysis
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Page 21
Exercise 40
Find Req for each of the resistive networks
Circuit Analysis
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Page 22
Exercise 43
Circuit Analysis
2 3 20
1
2
3 4
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Page 30
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Page 8
Circuit Analysis
Chapter
2
Voltage and Current Laws
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Page 9
Exercise 7
Find ix and iy
Circuit Analysis
1 A 5 A
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Use source- and resistor-combination technique as a help in finding vx and ix
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Exercise 53
Circuit Analysis
Find (a) Ix if I1=12mA (b) I1 if Ix=12mA (c) Ix if I2=15mA (d) Ix if Is=12mA
X
Y
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Page 26
Exercise 4
Use nodal analysis to find v1 and i2.
Circuit Analysis
X
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Page 27
Exercise 7
(a) Use nodal analysis to obtain a value of vx.
q(t ) = ∫ i(t )dt
0 t
−4t ......
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(0 < t < 2)
−8 + 2(t − 2) (2 < t < 4)
Page 2
Exercise 4 Determine the power being absorbed by each of the circuit elements.
Circuit Analysis
v2
vx
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Page 28
Exercise 9
Use nodal analysis to find of v4.
Circuit Analysis
B
A
C
D
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Page 29
Exercise 11
Circuit Analysis
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Page 1
Exercise 3
Circuit Analysis
The waveform has a period of 10s (a) What is the average value of the current over one period (b) How much charge is transferred in the interval 1<t<12s (c) If q(0)=0, sketch q(t), 0<t<16s
Make use of supernode concept to assist in the determination of the voltage labeled v20. Crossed wires solid v not marked by4av dot are not in physical contact − v =
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Exercise 15
Circuit Analysis
百度文库
The same current must flow through all three components as a result of conservation laws. Using the fact that the total power supplied = total power absorbed, show that the voltage across resistor R2 is given by:
Circuit Analysis
Circuit Analysis
Lectured by Chen Peijiang
Automotive College
Linyi University
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Page 0
Circuit Analysis
Chapter
1
Basic Components and Electric Circuits