MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
4th Edition
ISBN: 9780135245033
Author: Knight
Publisher: PEARSON
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Chapter 29, Problem 22EAP
The value of the line integral of 
around the closed path in FIGURE EX29.22 is
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33. Parts (a) through (e) of this problem should be done by
inspection-that is, mentally. The intent is to obtain an
approximate solution without a lengthy series of calcula-
tions. For the network in Fig. 102:
a. What is the approximate value of I1, considering the
magnitude of the parallel elements?
b. What is the ratio I¡/I2? Based on the result of part (a),
what is an approximate value of 12?
c. What is the ratio I/I3? Based on the result, what is an
approximate value of I3?
d. What is the ratio I/I4? Based on the result, what is an
approximate value of I4?
e. What is the effect of the parallel 100 kN resistor on the
above calculations? How much smaller will the current
I4 be than the current I¡?
f. Calculate the current through the 1 2 resistor using the
current divider rule. How does it compare to the result
of part (a)?
g. Calculate the current through the 10 2 resistor. How
does it compare to the result of part (b)?
h. Calculate the current through the 1 kn resistor. How
does…
Pr1. The figure shows the cros-section of a long, straight, cylindrical
coil (solenoid) of radius r = 10 cm. The number of turns per unit length is
n = 500 m-1. A direct current I = 1,0 A flows clockwise in the solenoid.
A charged particle accelerated by a voltage 1000 V enters into the solenoid
through a gap between the coils at point A. The velocity of the particle
at point A is pointing along the radius. The particle is traveling inside
the solenoid in a plane perpendicular to its axis and exits at point C at
an angle a = 60° to its initial direction.
60
A
a) Determine the sign of the charge of the particle.
b) What is the radius of the particle's trajectory?
c) Find the charge-to-mass (Q/m) ratio of the particle.
(The magnetic permeability of vacuum is µo = 4n · 10-7 Vs/Am.)
7.
a
C
R₂
Given E=12V, R₁-1002, R₂ = 1502 and C=1uF.
a) The switch S has been on position a for a long period of time. Find the charge of the
capacitor.
b) Find the current through the ammeter 9.50 µs after S is thrown from position a to position
b.
c) After S is thrown from a to b, at what time, in us, does the charge on C become equal to
2.00 uC
Chapter 29 Solutions
MASTERPHYS:KNIGHT'S PHYSICS ACCESS+WKB
Ch. 29 - The lightweight glass sphere in FIGURE Q29.1 hangs...Ch. 29 - The metal sphere in FIGURE Q29.2 hangs by a...Ch. 29 - Prob. 3CQCh. 29 - Prob. 4CQCh. 29 - What is the current direction in the wire of...Ch. 29 - What is the initial direction of deflection for...Ch. 29 - What is the initial direction of deflection for...Ch. 29 - Determine the magnetic field direction that causes...Ch. 29 - Determine the magnetic field direction that causes...Ch. 29 - Prob. 10CQ
Ch. 29 - The south pole of a bar magnet is brought toward...Ch. 29 - Prob. 12CQCh. 29 - Prob. 1EAPCh. 29 - Prob. 2EAPCh. 29 - 3. A proton moves along the x-axis with rn/s. As...Ch. 29 - An electron moves along the z-axis with vz=2.0107...Ch. 29 - What is the magnetic field at the position of the...Ch. 29 - What is the magnetic field at the position of the...Ch. 29 - Prob. 7EAPCh. 29 - Prob. 8EAPCh. 29 - Prob. 9EAPCh. 29 - A biophysics experiment uses a very sensitive...Ch. 29 - The magnetic field at the center of a 1.0...Ch. 29 - 12. What are the magnetic fields at points a to c...Ch. 29 - Prob. 13EAPCh. 29 - What are the magnetic field strength and direction...Ch. 29 - Prob. 15EAPCh. 29 - 16. The on-axis magnetic field strength cm from...Ch. 29 - A A current circulates around a -mm-diameter...Ch. 29 - 18. A small, square loop carries a A current. The...Ch. 29 - Prob. 19EAPCh. 29 - 20. What is the line integral of integral points...Ch. 29 - 21. What is the line integral of between points i...Ch. 29 - The value of the line integral of around the...Ch. 29 - 23. The value of the line integral of around the...Ch. 29 - 24. What is the line integral of between points i...Ch. 29 - Prob. 25EAPCh. 29 - 26. A proton moves in the magnetic field with a...Ch. 29 - Prob. 27EAPCh. 29 - 28. Radio astronomers detect electromagnetic...Ch. 29 - Prob. 29EAPCh. 29 - Prob. 30EAPCh. 29 - The microwaves in a microwave oven are produced in...Ch. 29 - The Hall voltage across a conductor in a 55mT...Ch. 29 - 33. What magnetic field strength and direction...Ch. 29 - 34. The two -cm-long parallel wires in FIGURE...Ch. 29 - The right edge of the circuit in FIGURE EX29.35...Ch. 29 - Prob. 36EAPCh. 29 - Prob. 37EAPCh. 29 - 38. A square current loop cm on each side carries...Ch. 29 - Prob. 39EAPCh. 29 - 40. a. What is the magnitude of the torque on the...Ch. 29 - A long wire carrying a 5.0A current perpendicular...Ch. 29 - Prob. 42EAPCh. 29 - What are the strength and direction of the...Ch. 29 - At what distance on the axis of a current loop is...Ch. 29 - 45. Find an expression for the magnetic field...Ch. 29 - Prob. 46EAPCh. 29 - Prob. 47EAPCh. 29 - 48. A -m-long, -mm-diameter aluminum wire has a...Ch. 29 - Prob. 49EAPCh. 29 - Prob. 50EAPCh. 29 - Prob. 51EAPCh. 29 - Weak magnetic fields can be measured at the...Ch. 29 - The heart produces a weak magnetic field that can...Ch. 29 - Prob. 54EAPCh. 29 - 55. The toroid of FIGURE P29.55 is a coil of wire...Ch. 29 - 56. The coaxial cable shown in FIGURE P29.56...Ch. 29 - 57. A long, hollow wire has inner radius and...Ch. 29 - 58. A proton moving in a uniform magnetic field...Ch. 29 - 59. An electron travels with speed m/s between...Ch. 29 - Prob. 60EAPCh. 29 - An antiproton (same properties as a proton except...Ch. 29 - a. A 65 -cm-diameter cyclotron uses a 500 V...Ch. 29 - An antiproton is identical to a proton except it...Ch. 29 - Prob. 64EAPCh. 29 - Prob. 65EAPCh. 29 - Particle accelerators, such as the Large Hadron...Ch. 29 - 67. A particle of charge q and mass m moves in the...Ch. 29 - 68. A Hall-effect probe to measure magnetic field...Ch. 29 - Prob. 69EAPCh. 29 - Prob. 70EAPCh. 29 - The 10-turn loop of wire shown in FIGURE P29.71...Ch. 29 - The two springs in FIGURE P29.72 each have a...Ch. 29 - Prob. 73EAPCh. 29 - Prob. 74EAPCh. 29 - A conducting bar of length I and mass m rests at...Ch. 29 - Prob. 76EAPCh. 29 - A wire along the x-axis carries current I in the...Ch. 29 - Prob. 78EAPCh. 29 - Prob. 79EAPCh. 29 - a. Derive an expression for the magnetic field...Ch. 29 - Prob. 81EAPCh. 29 - A long, straight conducting wire of radius R has a...Ch. 29 - Prob. 83EAP
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