Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 28, Problem 44AP
To determine
Whether the plaintiff is correct that the magnetic field of the earth is causing the buzzing of the wire or not.
Expert Solution & Answer
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R₁
5.0 22
H
4/
a
●
R3
78 92
●
£₁ = 24.0 V
V
0.10 2
£₂ = 48.0 V
0.50 Ω
E3= 6.0 V
13
+ 1₂x
i 0.05 02 h
R₂
ww
40 Ω
(a) Apply the junction rule at point a. Use the convention that current leaving a junction is
positive and current entering a junction is negative.
1₁x
Rs
-2002
✓+13 X
e
-1₁R₁+E₁-₁₁-1₁ R5+12 R₂+12₂=E₂ = 0
0.20
E = 36.0 V
The next two parts of the problem will require you to use the math type box to enter an equation for
Kirchhoff's loop rule in terms of variables only. An example problen with what the required
formatting should look like for the system to recognize it as a correct answer is provided below.
Example: Apply the loop rule to loop abcdelka, using variables instead of values. (i.e. E₁, 12, R₁,
r2 etc.). Use the Mathtype Editor (orange box).
Use subscripts using the menu in the math editor.
The answer is case sensitive (use R and r differently as appropriate).
• When forming the product IR, don't forget the multiplication sign. Enter IR as I. R.
Solution:
✓ = 0
For the circuit shown in Fig. Q1(a), the capacitor is initially charged to 3.5 V with polarity shown.
compute the voltage vc(t) and the current ic (t) when the switch (S) is closed.
I = 5.5 mA
↑
R₁
R₂
2.6 ΚΩ
• 8.7 ΚΩ
Fig. Ql(a)
S
C = 3.3 uF
+
3.5 V
For the circuit shown in Fig. Q1(c), the capacitor is initially charged to 2.5 V with the polarity
shown. Calculate the voltage vc (t) when the switch (S) is closed.
+ 7.5 V
R, Σ 3.3 ΚΩ
R₂
9.5 ΚΩ
S
42 uF
- 15 V
Fig. Q1(c)
Chapter 28 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 28.1 - An electron moves in the plane of this paper...Ch. 28.2 - Prob. 28.2QQCh. 28.4 - A wire carries current in the plane of this paper...Ch. 28.5 - (i) Rank the magnitudes of the torques acting on...Ch. 28 - At the equator, near the surface of the Earth, the...Ch. 28 - Consider an electron near the Earths equator. In...Ch. 28 - Find the direction of the magnetic field acting on...Ch. 28 - A proton moving at 4.00 106 m/s through a...Ch. 28 - A proton travels with a speed of 5.02 106 m/s in...Ch. 28 - Prob. 6P
Ch. 28 - Prob. 7PCh. 28 - An accelerating voltage of 2.50103 V is applied to...Ch. 28 - A proton (charge + e, mass mp), a deuteron (charge...Ch. 28 - Prob. 10PCh. 28 - Review. One electron collides elastically with a...Ch. 28 - Review. One electron collides elastically with a...Ch. 28 - Review. An electron moves in a circular path...Ch. 28 - A cyclotron designed to accelerate protons has a...Ch. 28 - Prob. 15PCh. 28 - Prob. 16PCh. 28 - A cyclotron (Fig. 28.16) designed to accelerate...Ch. 28 - A particle in the cyclotron shown in Figure 28.16a...Ch. 28 - Prob. 19PCh. 28 - Prob. 20PCh. 28 - A wire carries a steady current of 2.40 A. A...Ch. 28 - Prob. 22PCh. 28 - Review. A rod of mass 0.720 kg and radius 6.00 cm...Ch. 28 - Review. A rod of mass m and radius R rests on two...Ch. 28 - Prob. 25PCh. 28 - Consider the system pictured in Figure P28.26. A...Ch. 28 - A strong magnet is placed under a horizontal...Ch. 28 - In Figure P28.28, the cube is 40.0 cm on each...Ch. 28 - Prob. 29PCh. 28 - A 50.0-turn circular coil of radius 5.00 cm can be...Ch. 28 - You are in charge of planning a physics magic show...Ch. 28 - Prob. 32PCh. 28 - A rectangular coil consists of N = 100 closely...Ch. 28 - A rectangular loop of wire has dimensions 0.500 m...Ch. 28 - Prob. 35PCh. 28 - A Hall-effect probe operates with a 120-mA...Ch. 28 - Prob. 37APCh. 28 - Prob. 38APCh. 28 - Prob. 39APCh. 28 - Prob. 40APCh. 28 - Prob. 41APCh. 28 - Prob. 42APCh. 28 - A proton having an initial velocity of 20.0iMm/s...Ch. 28 - Prob. 44APCh. 28 - Prob. 45APCh. 28 - Why is the following situation impossible? Figure...Ch. 28 - A heart surgeon monitors the flow rate of blood...Ch. 28 - Prob. 48APCh. 28 - Prob. 49CPCh. 28 - Protons having a kinetic energy of 5.00 MeV (1 eV...Ch. 28 - Review. A wire having a linear mass density of...
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