4/15/10
CHAPTER 30
INDUCTANCE
PART 2
Vah Peroomian
PROBLEM 30.18
It is proposed to store 1.00 kW.h = 3.60 106 J of electrical
energy in a uniform magnetic field with magnitude 0.600 T.
(a) What volume (in vacuum) must the magnetic field
occupy to store
Physics 1C Physics for Scientists and Engineers:
Electrodynamics, Optics, and Special Relativity
Spring Quarter 2010
Mondays, Tuesdays, Wednesdays, and Fridays 1:00 1:50 P.M.
Kinsey Pavilion 1220B
Instructor:
Dr. Vah Peroomian
3860 Slichter Hall
(310) 825
Syllabus for 1C Fall 2013
Electromagnetism, Light, and Special Relativity
Professor Martin Simon
Office PAB 1-707K
Text and homework: We will cover chapters 27 - 37 of University Physics, Young
and Freedman 13th edition, at a rate a little faster than 1 c
Physics 1C - Winter 2017
Midterm Exam #2
READ THIS BEFORE YOU BEGIN
You are allowed to use only yourself and a writing instrument on this exam.
If you finish more than 5 minutes before the end of the exam period, please raise your
hand and a proctor wil
Physics 1C - Midterm 2 - Solutions
Winter 2017
P ROBLEM 1 - L ENSES
(a) Here we disregard the diverging lens. We start with our favorite 1s + s10 = 1f .
sf
Solving it for the image distance s 0 = s f
Converging lens has a positive value for the focal leng
Week 1 Discussion
Physics 1C
John D. Terry
Class Overview
Maxwells equations define the fields.
I
I
Qenc
~ dA
~=0
~
~
B
E dA =
0
I
Z
I
Z
Z
d
d
~
~
~
~
~
~
~
~
~ dA)
~
E dl =
B dA
B dl = 0 ( J dA + 0
E
dt
dt
Lorentz force law determines how fields interac
Physics 1C
Spring 2017
Lecture 2, !
Thursday, April 6
Aurora Borealis
Magnetic Forces
Charges in a magnetic field
A magnetic field is generated by moving particles with constant v (current)
A magnetic field exerts a force on any moving particle with ele
Week 1 Discussion
Physics 1C
John D. Terry
Solutions
Problem 1
Lets first use Gausss law to find the electric field of the proton. Define the Gaussian surface
to be a sphere around the proton.
e
2
~
E4r
r =
0
e
~ =
r
E
40 r2
The force is then
2
~ r=R = e
Physics 1C
Spring 2017
Lecture 3, !
Tuesday, April 11
Magnetostatics
Charges and currents in a
magnetic field
A magnetic field is generated by moving particles with constant v (current)
A magnetic field exerts a force on any moving particle with electri
Solutions 30
30.4.
Changing flux from one object induces an emf in another object.
(a) The magnetic field due to a solenoid is B = 0nI .
The above formula gives
(4 107 T m/A)(300)(0.120 A)
B1 =
= .81 104 T
1
0.250 m
The average flux through each turn of t
Solutions homework 31
31.2.
Apply Eqs. (31.3) and (31.4).
(a) I = rms = .10 A) = A.
2I
2(2
2.97
(b) I =
rav
2
2
I
(2.97 A) 1.89 A.
=
=
(c) The root-mean-square current is always greater than the rectified average, because squaring the current
before avera
Homework 37 solutions
37.6.
Apply Eq. (37.8).
For part (a) the proper time is measured by the race pilot. = 1.667.
(a) t=
1.20 108 m
= 0.500 s. t0=
(0.800)(3.00 10 m/s)
8
t 0.500 s
=
= 0.300 s.
1.667
(b) (0.300 s)(0.800c) 7.20 107 m.
=
(c) You read
1.20 1
Solutions homework 35
35.5. Use c = f to calculate the wavelength of the transmitted waves. Compare the difference in the distance from A to
P and from B to P. For constructive interference this path difference is an integer multiple of the wavelength.
Co
Solutions 36
36.3.
m
The dark fringes are located at angles that satisfy sin = , m =1, 2, .
a
The largest value of sin is 1.00.
a 0.0666 103 m
=
= 113.8. The largest value m can have
585 109 m
is 113. m =1, 2, , 113 gives 226 dark fringes.
(a) Solve for m
Name:
1C Discussion - Week 9
1. Previous Final (by Prof. Simon). A 200kW radio antenna broadcasts 1500 kHz
in all directions. Your house is 10km north of the transmitter.
(a) At your house 10 km from the source, what is the intensity of the EM wave?
(b) A
Physics 1C Winter 2017
Problem Set 4
Due Friday, March 3 at 5:00 PM in the 1C homework box ON THE TABLE across the
hall from PAB 1-707E and labeled with the course number. Please make sure to write your
full name and UID on your problem set, and staple al
Physics 1CH, Spring 2016
Homework #4 (due Tuesday, April 26 in class)
Reading
Pedrotti3
Chapter 2, Section 15-2
Problem 1:
In the case of reflection from a planar surface, use Fermat's principle to prove that the
incident and reflected rays share a common
Problem Set 3, Physics 1CH
April 22, 2016
Problem 1
We have y(x, t) = .3 sin(0.5x 50t) with x measured in cm and t in seconds. For (a), we read off that
the amplitude is .3 (in some units of distance), the wave number k is k = .5cm1 and thus the wavelengt
Problems on relativity
Problem 1
Let us consider a rocket moving toward the Earth with velocity v, the rocket
is going to reach our planet at the instant T (measured on the Earth). The
pilot of the rocket wants to send a communication to the Earth using a
EE2: Greens, Divergence & Stokes Theorems plus Maxwells Equations
Greens Theorem in a plane: Let P (x, y) and Q(x, y) be arbitrary functions in the x, y
plane in which there is a closed boundary C enclosing1 a region R. Greens Theorem connects
behaviour a
UCLAPhysics
Physics1C
DiscussionNotes
ByNathanTung
P a g e |1
Table of Contents
Table of Contents . 1
Preface . 4
Introduction . 5
1.
What is Electric Charge? . 6
2.
The Electric Field . 8
3.
Magnetism.
Physics 1C: Electrodynamics, Optics, and Special Relativity
Fall 2015
Discussion: Week 3
Agnieszka Wergieluk
Graduate TA
[email protected]
Problem 1
A stiff wire that has a part bent into a semicircle of radius r is rotated with a frequency f in a unifo
Physics 1C: Electrodynamics, Optics, and Special Relativity
Fall 2015
Discussion: Week 4
Agnieszka Wergieluk
Graduate TA
[email protected]
Problem 1
Starting from Faradays law, argue why the inductance (i.e., self-inductance) is defined in the way it is
Physics 1C: Electrodynamics, Optics, and Special Relativity
Fall 2015
Discussion: Week 1
Agnieszka Wergieluk
Graduate TA
[email protected]
Problem 1
Four long wires are parallel to each other, their cross section forming a square of length a on edge. A
Physics 1C: Electrodynamics, Optics, and Special Relativity
Fall 2015
Discussion: Week 2
Agnieszka Wergieluk
Graduate TA
[email protected]
Problem 1
A long coaxial cable consists of two concentric conductors with the dimensions shown in the figure below
Week 10: Friday
Friday, March 17, 2017
14:09
Recall:
How do
and
compare?
Case 1:
Case 2:
Since
Case 1: small
Case 2:
Remember Taylor:
For case 1, we Taylor expand
around
Hence,
and we have small .
Case 2:
To reach Andromeda in one's lifetime:
When
,
gets
Physics 1C Winter 2017
Problem Set 1
Due Friday, January 20th at 5:00 PM in the 1C homework box right outside of PAB 1-707E.
Please make sure to write your full name and UID on your problem set, and staple all
sheets together.
1
14th Edition
Chapter 27
Q2
Physics 1C Winter 2017
Problem Set 5
Due Friday, March 17 at 5:00 PM in the 1C homework box ON THE TABLE across the
hall from PAB 1-707E and labeled with the course number. Please make sure to write your
full name and UID on your problem set, and staple a
Physics 1C Winter 2017
Problem Set 3
Due Tuesday, February 21st at 10:00 AM in the 1C homework box ON THE TABLE
across the hall from PAB 1-707E and labeled with the course number. Please make sure to
write your full name and UID on your problem set, and s
Physics 1C Winter 2017
Problem Set 2
Due Friday, February 3rd at 5:00 PM in the 1C homework box ON THE TABLE across
the hall from PAB 1-707E and labeled with the course number. Please make sure to write
your full name and UID on your problem set, and stap
Physics 1C Winter 2017
Recommended Reading
It is highly recommended that you read the sections for each day before you come to lecture.
Week 1
M: 27.1, 27.2
T: 27.4, 27.5
W: 27.6, 27.7
F: 27.3, 27.8
Week 2
M: 28.1, 28.2, 28.3
T: 28.4, 28.5
W: 28.6, 28.7
F