Questions and Answers of Schaum S Outline Of Electric Circuits

Obtain the Thévenin and Norton equivalents for the network shown in Fig. 4.45. (A) 19 .4 . a 6. + 20) V | I, |lc.
Find the maximum power that the active network to the left of terminals ab can deliver to the adjustable resistor R in Fig. 4-46. 60 Ω U 60 Ω 1990 V ww 30 Ω a b R
The network of Problem 4.14 has been redrawn in Fig. 4-47 and terminals a and b added. Reduce the network to the left of terminals ab by a Thévenin or Norton equivalent circuit and solve for the
In the circuit of Fig. 4-48 write three node equations for nodes A, B, and C, with node D as the reference, and find the node voltages. A O 1A( 492 ww ww 692 I B D 392 6 V ww 292 C +2A 2 A
In the circuit of Fig. 4-48 find the contribution of each source to VA, VB, and VC, and show that they add up to the values found in Problems 4.36 and 4.37.Data from Problem 4.36In the circuit of
Under no-load conditions a dc generator has a terminal voltage of 120 V. When delivering its rated current of 40 A, the terminal voltage drops to 112 V. Find the Thévenin and Norton equivalents.
In the circuit of Fig. 4-48 note that the current through the 3-Ω resistor is 3 A, giving rise to VB = 9 V. Apply KVL around the mesh on the upper part of the circuit to find current I coming out of
In the circuit of Fig. 4-48 remove the 2-A current source and set the other two sources to zero, reducing the circuit to a source-free resistive circuit. Find R, the equivalent resistance seen from
Use the values for VC and Vo.c. obtained in Problems 4.36 and 4.39 to find the Thévenin equivalent of the circuit of Fig. 4-48 seen by the 2-A current source.Data from Problem 4.36In the circuit of
In the circuit of Fig. 4-48 remove the 2-A current source and then find the voltage Vo.c. between the open-circuited nodes C and D. A 1A+ 492 M www 622 I B D 6 V ww 2922 392 C с +2A
Find the Thévenin equivalent of the circuit of Fig. 4-49 seen from terminals AB. ΑΟ BO 4Ω www Μ 6Ω ΣΩ Μ 6 V ΖΩ 1>2i
In the circuit of Fig. 4-50 write three loop equations using I1, I2, and I3. Then find the currents. 3V/ +1 13 Μ Μ ΤΩ ΤΩ Μ ΖΩ ΖΩ Μ 292 ww ΤΩ 12 +1 2V
In the circuit of Fig. 4-50 find the contribution of each source to I1, I2, and I3, and show that they add up to the values found in Problem 4.43.
In the circuit of Fig. 4-51 write three node equations for nodes A, B, and C, with node D as the reference, and find the node voltages. A 3 A ( 4 Μ ΖΩ Μ ΣΩ 3V 792 B +1 D Ε Μ 3 Ω 12 C ΤΩ
In the circuit of Fig. 4-51 find the contribution of each source to VA, VB, and VC, and show that they add up to the values found in Problem 4.45.Data from Problem 4.45In the circuit of Fig. 4-51
In the circuit of Fig. 4-51 write two loop equations using I1 and I2. Then find the currents and node voltages. A 3A ( 4 Μ ΖΩ ΣΩ 3 V 792 B +1 D w 392 12 C ΤΩ
Verify that the circuit of Fig. 4-52(a) is equivalent to the circuit of Fig. 4-51. 3A ww ΤΩ ΖΩ C D ΤΩ Μ 30 3 Ω B ww ΖΩ +3V
Find VA and VB in the circuit of Fig. 4-52(b). 3 Α 3A O 76 CI Μ ἐξ E ΤΩ B 2 Ω +1 3V
Show that the three terminal circuits enclosed in the dashed boundaries of Fig. 4-52(a) and (b) are equivalent (i.e., in terms of their relation to other circuits).
Find the terminal characteristic of the circuit of Fig. 4-53(a) and plot it in the i −v plane. 1.5 V || 5Ω www V
In the circuit of Fig. 4-54(a) find terminal current i as a function of terminal voltage v and plot it in the i −v plane. 0.7V - ΙΩ Μ Μ V
The i −v characteristic of a two-terminal device is modeled by Construct its circuit model using an ideal diode, a resistor, and (a) A voltage source and (b) A current source.
In the circuit of Fig. 4-55(a) express terminal voltage v in terms of terminal current i and plot it in the i −v plane.The diode is ideal. 1.5 V 502 www V
The i −v characteristic of a two-terminal device is modeled byConstruct its circuit model using an ideal diode, a resistor, and (a) A voltage source and(b) A current source. || [0.50 +2.5, v
Find the diode’s DC operating point (I0, V0) in the circuit of Fig. 4-59(a) using the graph of Fig. 4-59(b). 1.5V++ 592 1=0 V₁ V₂ (a) N 0.3 To 0 (b) 1.5 V = V₁ = V₂
The switch in Fig. 4-58 connects circuit N1, characterized by v1 = 2i1 + 3, to circuit N2, characterized by v2 = i2 + 6, at t = 0. Find i1, i2, v1, and v2 for −∞< t < ∞.
Consider a two-terminal circuit N1, characterized by v1 = 2i1 + 3, and another circuit N2, characterized by v2 = i2 + 6. Find the terminal characteristic of their combination if they are
Repeat Problem 4.58 for i1 = 2v1 + 4 and v2 = 0.5i2 + 1.5.Data from Problem 4.58Consider a two-terminal circuit N1, characterized by v1 = 2i1 + 3, and another circuit N2, characterized by v2 = i2 +
Repeat Problem 4.58 for v1 = 2i1 − 6 and i2 = v2 − 2.Data from Problem 4.58Consider a two-terminal circuit N1, characterized by v1 = 2i1 + 3, and another circuit N2, characterized by v2 = i2 + 6.
Plot the terminal characteristic of the circuit of Fig. 4-61(a) (i vs. v) if the DC voltage source is(a) 1.5 V and(b) −1.5 V. The diode’s characteristic is given in Fig. 4-61(b).
Plot the terminal characteristic of the circuit of Fig. 4-62(a) (i vs. v) if the DC voltage source is(a) 1.5 V and(b) −1.5 V. The diode’s characteristic is given in Fig. 4-61(b).
In the circuit of Fig. 4-63(a), find and plot the voltage transfer ratio V2/V1. The diode is ideal. V₁ (1+) R www 0.6 V (a) + V₂
In the circuit of Fig. 4-64(a), find and plot the voltage transfer ratio V2/V1. The diode is ideal. R ww 0.6 V $ Z 0.8 V V₂
(a) In the circuit of Fig. 4-66(a), determine the diode’s DC operating point (I0, V0). The diode’s characteristic is given in Fig. 4-61(b). Hint: Verify the Thévenin equivalent circuit shown in
In the circuit of Fig. 4-65(a), find and plot the voltage transfer ratio V2/V1. The diode is ideal. V₁ (+1) K 0.7 V R V₂
Given the operating point V0 = 1.1 V, I0 = 73 mA for the diode of Problem 4.66 and assuming n = 2, find its reverse saturation current Is.Data from Problem 4.66(a) In the circuit of Fig. 4-66(a),

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