HW Set#1a Due Monday, Jan. 13:
From Piazza Note@6 (which is not the Purcell text):
1.2 (read page 8), 1.3, 1.6, 1.7 (ask me for the answer), 1.12, 1.15, 1.18
Purcell thru Sect. 1.4: The range of applicability
Jan. 8
Review of topics from Intro Physics
Purcell thru Sect. 1.8,
and
More on 3D Vector Calculus
Jan. 10
In-class, at-the-board, discussion of HW problems
More on Vector Fields,
and
Purcell thru Sect. 1.14
Celebrate National Static Electricity Day!
Of course, we'll take things further:
Science moves forward as a large, shared conversation,
so register NOW, for free access to Physics World
Weekly Goal: appreciate Mary Boas
HW Set# 2a Due Monday, Jan. 20:
From Piazza Note@6 (which is not the Purcell text):
1.25, 1.27, 1.28, 1.31 (re-read Example 1.8), 1.32, 1.33, 1.34, 1.39
Post questions! Try to respond
to questions posted by other students!
Purcell thru Ch 1 Summary
Jan. 15
Key Examples
Purcell thru Sect. 2.5
Jan. 17
Differential forms
Laplace is your friend!
Line integral of E
The potential function (V or φ)
Finding E from V
Purcell thru Sect. 2.7.2
(Related topics: doping of semiconductors, ion implantation,
Bragg peak, proton therapy, ...)
One of our IWU Physics grads works at the Department of Energy's Advanced Photon Source,
and at the Stanford Linear Accelerator (SLAC),
where charged particles are accelerated close to the speed of light,
to help develop materials for next-generation computers.
Modern engineering is often well beyond the range of common experience!
HW Set# 3a Due Monday, Jan. 27:
From Piazza Note@6 (which is not the Purcell text):
1.49, 1.57, 2.6, 2.7 (do not use Gauss’s Law), 2.21, 2.28, 2.34, 2.50
ONLY check the answers (below) after you've contributed your own thoughts!
Weekly Goal: appreciate the centrality of the conservation principles
HW Set# 3a
Due Monday, Jan. 27:
From Piazza Note@6 (which is not the Purcell text):
1.49, 1.57, 2.6, 2.7 (do not use Gauss’s Law), 2.21, 2.28, 2.34, 2.50
For the past 16 years, one of our IWU Physics grads has worked at National Electrostatics Corp. (After noting the applications for their first type of accelerators, keep scrolling to see the applications of other types)
Are you up to date
in your reading
of Purcell? Catch up!
(read through Sect. 5.7)
If caught up in Purcell, supplement your understanding
by consulting The Feynman Lectures on Physics
Volume 2,
by Richard P. Feynman, R. B. Leighton, and
M. Sands
(Addison-Wesley, but openly available online)
Feb. 19
Transmitting News of the World
to Distant Corners
Purcell thru Sect. 5.8
Feb. 21
Momentum
of
the fields
Purcell thru Ch 5 Summary
Context for Fig. 5.7 (p. 243):
IWU Physics student Joe Richards, with collaborators Yoshi Arita and Kishan Dholakia,
was able to create what was (at the time) the world's fastest spun man-made object.
That record has since been surpassed, but you might ask,
"What's the ultimate limit?":
...You might recall that electrons are NOT man-made objects:
HW Set# 5b Due Monday, Mar. 3:
Purcell Ch 6: Problem 6.2;
Exercises 6.29, 6.30, 6.31, 6.33, 6.42
HW Set# 6 Due Monday, Mar. 10:
Purcell Ch 7:
Exercises 7.35, 7.42, 7.43
Feb. 24
Properties of B
AND of the Vector Potential
Open discussion
of
vector potential,
leading towards
your plans for
World Domination, er, ...um,
I mean your plan for doing something potentially good!
Damped Harmonic Oscillators
and Q
("Quality Factor")
Read thru
Purcell Sect 8.1
(You have the Power!)
Here's a way to show off:
...start at the 9:20 timestamp on this video
Why is light slower in glass or water?
(From the Sixty Symbols YouTube channel)
Weekly Goal: spend serious time on problem solving!
HW Set# 7a
Due Monday, Mar. 24:
Purcell Ch 8
Problems:
8.1, 8.2, 8.3, 8.4
HW Set# 7b
Due Friday, Mar. 28:
Purcell Ch 8: Exercises
8.26, 8.27, 8.32, 8.34
Mar. 24
AC Circuits
(Pronounced as
"Ack! Circuits!!")
...made a bit easier?
Purcell thru Sect 8.5
Mar. 26
In-class,
at-the-board,
discussion of
AC circuit
problems
Purcell thru Sect. 8.6
Mar. 28
Example application
connecting
Admittance &
Impedance &
Power &
Energy
(Oh my!)
Purcell thru Ch 8 Summary
The rotating vectors at bottom left are called PHASORS;
they keep track of where we are in each cycle, for I and V.
Try switching from a resistor to a capacitor or an inductor:
Weekly Goal: spend serious time on problem solving!
Every rare earth metal halide lamp you come across, a cut goes to the Anderson Physical Laboratories, founded by IWU Physics grad Dr. Scott Anderson. For example, his lamps illuminate the Statue of Liberty, and many major sports facilities.
Because he helped fund this building, room C101 of CNS is the Anderson Auditorium.
Each year, we name an IWU Scott Anderson Scholar in Physics.
Sometimes, information carried by light appears to be lost:
HW Set# 10 EXTRA CREDIT ONLY
Purcell Append. H: Exercises H.1, H.2, H.3
(Due at Final Exam)
Apr. 21
In-class, at-the-board, discussion of HW problems
Purcell Append. J
Apr. 23
Conceptual REVIEW
Final Exam
covers
in-class discussions
(through Ch 11)
Review!
Apr. 25
Zen Express!
Review!
Remember, all information is physical:
I'm interested in ways to recover
information that appears to be dissipated during transmission.
If we are clever enough, there can be ways of recovering "lost" information:
Wanna play?
FINAL EXAMINATION:
Tues., 29 April, 1:15-3:15pm
...You might be interested in discussing articles we've produced on these topics:
Your Dungeon Master: Gabe Spalding
Office: CNS room C006B.
Tel: 556-3004.
Electronic communication: gspaldin@iwu.edu
