Quiz 1
Name: ID:
1.
Positive charges with magnitudes 3.50 mC (=3.5010-3C) and 6.75 mC are located at the origin and at the point (10.00, 0) meters on the x axis, respectively. What are the strength and direction of the field they generate at the p
Quiz 1
Name: ID:
Key
1.
Positive charges with magnitudes 3.50 mC (=3.5010-3C) and 6.75 mC are located at the origin and at the point (10.00, 0) meters on the x axis, respectively. What are the strength and direction of the field they generate at
Halliday/Resnick/Walker
Fundamentals of Physics 8th edition
Classroom Response System Questions
Chapter 3 Vectors
Reading Questions
3.2.1. Which of the following parameters, if any, is not a vector?
a) acceleration
b) displacement
c) average velocity
d) a
Capacitance, Capacitors and Circuits. Start with a review
The capacitance C is defined as
Q C V
To calculate the capacitance, one starts by introduce Q to the object, and use the Laws we have so far to calculate for the V.
Example: Capacitance of
Homework 6
1. (a) Find the equivalent resistance between points a and b. (b) A potential difference of 34.0 V is applied between points a and b. Calculate the current in each resistor and the power consumed by each resistor.
2.
The ammeter A reads
Homework 9
1. A current pulse is fed to the partial circuit shown in the figure. The current pulse is 10.0 A and its duration is from t =0 to t = 200 s. Determine the current in the inductor and the resistor as a function of time.
2.
A 1.00 F capac
Homework 11
1. A laser beam with vacuum wavelength 632.8 nm (1nm = 10-9m) is incident from air onto a block of Lucite. The line of sight of the photograph is perpendicular to the plane in which the light moves. Use a protractor to measure the angles
Quiz 0
Name: ID:
Mathematics is the language in sciences. Certain amount of knowledge in mathematics is required to understand the material in this course. To help you check how well you are prepared in math for this course, please complete this qu
A different review
A review of the following topics by working on problems
1. Electric charge, potential, force, field and flux. Coulomb's Law Gauss's Law. 2. Capacitance and resistance. Ohm's Law. 3. Circuits. Kirchhoff's Rules.
Electric field of a
HW9Key
First, 0 < t < 200 s , we have two deferential equations: ( I1 is the current go through the inductor and I2 is the current go through resistor.
L
dI1 = I2 R dt I1 + I 2 = 10
R - t L
Solve these equations( with initial condition: I1=0 whe
Homework 13
1. Two 3.0 meter-tall planar mirrors are placed facing and parallel to each other 0.75 m apart. If a ray of light just passes the bottom edge of one mirror and strikes the other at an incident angle of 10, how many reflections will the li
PHYS 1304 Mid-term Exam
Name ID
1.
(Total 30 points) Two point charges, q1 and q2, are fixed in space. The distance between the two charges is d. Here q1 = 2.0 C, q2 = 8.0 C, and d = 9.0 cm. 1 C = 10-6 C. (a, 20 points) Find the point in space tha
Homework 5
1. Four capacitors are connected as shown in the figure. (a) Find the equivalent capacitance between points a and b. (b) Calculate the charge on each capacitor, taking Vab =15.0 V.
2.
Find the equivalent capacitance between points a and
Capacitance, Capacitors and Circuits. Start with a review
The capacitance C is defined as
Q C V
To calculate the capacitance, one starts by introduce Q to the object, and use the Laws we have so far to calculate for the V.
Example: Capacitance of
Electrostatics
1. Charge
force:
Like sign charges repel, unlike sign charges attract. Coulomb's Law: direction and magnitude of force between two point charges.
F = k0
r r F E qtest
q1q2 r2
2. Force
electric field:
Introduced to expla
Class project
For 4 bonus points: Use only two thin lenses (you choose the focal lengths) to design a telescope with it one can see a non-inverted and enlarged image. State clearly which lens is the object lens, which lens is the eye piece and the di
Chapter 28
Direct Current Circuits
1. 2. 3. 4. 5. R connections in series and in parallel Define DC (direct current), AC (alternating current) Model of a battery Circuits with 2+ batteries Kirchhoff's Rules RC circuit
:" "
Confucius says, reviewi
Homework 1
1. In a process known as beta decay, a neutron (charge 0) in an unstable atomic nucleus becomes a proton (charge +e), ejecting an electron (charge e) and an antineutrino. (a) Use conservation of charge to determine the charge of an antineu
Homework 1
1. In a process known as beta decay, a neutron (charge 0) in an unstable atomic nucleus becomes a proton (charge +e), ejecting an electron (charge e) and an antineutrino. (a) Use conservation of charge to determine the charge of an antineu
Homework 2 1) Two charges of +2q and -5q are placed on a line. The distance between the two charges is d. (a) There is a point on the line where the strength of the electric field due to the two charges is zero. Describe where the point is, relative
Electric Flux and Gauss Law
Electric flux, definition r r E = Ei Ai cos i = Ei A i
Ai Ai 0 r r E = E dA
i surface
E = lim
E
Gauss law
r r qin E = E dA =
0
qin is the net charge inside the surface
Applying Gauss Law
To use Gauss law,
Electric Charge and Coulomb's Law
Electric charge
The positive charge and negative charge: Matter is made of atoms. Inside an atom, there is the nucleus that is surrounded by electrons. Inside the nucleus, there are two particles called proton and n
HW4Key 1. Two infinitesimally small point charges of +2.0 C each are initially stationary and 5.0 m apart. (a) How much work is required to bring them to a stationary position 2.0 m apart? (b) 2.0 mm apart? (c) With a finite amount of energy, is it p
Chapter 33
Alternating Current (AC) R, L, C in AC circuits
AC, the description
A DC power source, like the one from a battery, provides a potential difference (a voltage) that does not change its polarity with respect to a reference point (often the
Introductory Physics II
Welcome and Congratulations
This is the largest class I have ever had at SMU. Let's work together to make it the best one. I congratulate you on making this wise decision to learn physics, especially Electricity and Magnetism
Homework 10
1. An AC source with Vmax = 150 V and f = 50.0 Hz is connected between points a and d. Calculate the maximum voltages between (a) points a and b, (b) points b and c, (c) points c and d, (d) points b and d.
2.
Draw to scale a phasor diag
Homework 10
Imax =
Vmax R 2 + ( X L - XC )
2
=
Vmax Z
50 Hz = 100 (radians per second);185mH = 0.185 H ;65 F = 6.5 10-5 F
Imax =
2
Vmax R + ( X L - XC )
2
=
150 1 402 + 100 0.185 - -5 100 6.5 10
2
= 3.66 ( A )
Vmax( a -b ) = R Ima
Chapter 29
Magnetic Fields
1. 2. 3. 4. Introduction to magnetic field. The forces on moving charges and currents inside a magnetic field. The math that will needed is vector product. The source of magnetic field will be discussed in later chapters.
Homework 4
1. Two infinitesimally small point charges of +2.0 C each are initially stationary and 5.0 m apart. (a) How much work is required to bring them to a stationary position 2.0 m apart? (b) 2.0 mm apart? (c) With a finite amount of energy, is