Mindtap Electrical, 4 Terms (24 Months) Printed Access Card For Herman's Delmar's Standard Textbook Of Electricity, 6th (mindtap Course List)
6th Edition
ISBN: 9781305634312
Author: Herman, Stephen L.
Publisher: Cengage Learning
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Chapter 9, Problem 4RQ
To determine
Whether the currents entering a point carry a positive or negative sign according to Kirchhoff’s current law.
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3) The differential amplifier in Figure 3 is biased with a three-transistor current
source. The transistor parameters are ẞ= 100, VBE (on) = 0.7 V, and VA = ∞.
a) Determine I1. Ic2, IC4, VCE2, and VCE4.
b) Determine a new value of R1 such that VCE4 = 2.5V. what are the values of Ic4,
Ic2, I1, and R₁?
+5 V
Q1
R₁ =
8.5 ΚΩ
IC4
23
RC=
• 2 ΚΩ
+
24 VCE4
RC=
2 ΚΩ
est
Ic2
+
Q2 VCE2
-5 V
Figure 3
12.1 Evaluate each of the following integrals:
(a) G₁ = √(33-4t²+3)[8(t) +28(t − 2)] dt.
(b) G₂ = √442(e³ +1)[8(t) − 28(t − 2)] dt.
.16
-31
(c) G3=124t sin(2лt) − 1][§(t − 1) +☎(t − 6)] dt.
Why is the voltage drop of a self-excited generator greater than the voltagedrop of a separately excited generator?
Chapter 9 Solutions
Mindtap Electrical, 4 Terms (24 Months) Printed Access Card For Herman's Delmar's Standard Textbook Of Electricity, 6th (mindtap Course List)
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