Haverford College Physics 102b2012
 Classical and Modern Physics II
Meets: MWF 11:3012:30, INSC H108, optional recitation TBA
Labs (every other week): Tuesday or Wednesday, 1:154:00, Harris 105
Physics Clinic: W and Th evenings, 7:0010:00, H107
Lecturer: Walter
F. Smith (6108961332, INSC L110)
Office hours: M 1011, Tu 1112, Th 1011, F 1011, or by appointment
Lab instructors:
Suzanne Amador Kane (6108961198, KINSC L103)
Office Hours: Tues. 9:30noon, Wed. 9:30 to 11:15am and by appointment
Joseph Ochoa (6107956232, KINSC L102)
Thurs. 12:303:30pm, Fri. 1:303:00pm or by appointment
Scott
Shelley (INSC L207, X1310)
Syllabus (choose a format) Web
Page .. PDF ..
Word Format
Solutions
for assignments and exams (password required)
Lecture summaries
Monday 
Wednesday 
Friday 
MLK Day 


12312
Electric field lines, fields of continuous charge distributions, field of infinite rod and plane
Web page .. PDF .. Word 
12512
Electric fields of spherically symmetrical charge distributions, voltage
Web page .. PDF .. Word 
12712
Equipotentials are perpendicular to electric fields, field of a solid sphere
Web page .. PDF .. Word 
13012
Relations between voltage and electric field
Web page .. PDF .. Word 
2112
Superposition of voltage, dielectric constant, dipoles
Web page .. PDF .. Word 


2812
Gauss's Law, electric field at the surface of a metal
Web page .. PDF .. Word 
21012
Electric field at the surface of a metal (ctd.), electric current, Ohm's Law, series and parallel resistors
Web page .. PDF .. Word 
21312
Review session for exam 1
Handout on V due to separate plates in a capacitor:
Web page .. PDF .. Word 

21712
Microscopic view of current, resistivity, drift velocity, Fermi velocity, Drude model
Web page .. PDF .. Word 
22012
RC discharge, guessing the solution to a differential equation
Web page .. PDF .. Word 
22212
RC charging, lowpass filters, the magnetic field, Gauss's Law for magnetic fields
Web page .. PDF .. Word 
22412
Oersted's experiment, magnetic forces on a point charge, magnetic force on a currentcarrying wire, begin motors
Web page .. PDF .. Word 
22712
Finish motors, mass spectrometers, carbon dating
Web page .. PDF .. Word 
22912
Currents produce magnetic fields, BiotSavart Law, field of an infinite wire, field of a currentcarrying loop, solenoids
Web page .. PDF .. Word 


Spring break!! 


31412
Summary of right hand rules, Ampere's Law, energy of a magnetic dipole
Web page .. PDF .. Word 




Exam 2 review session 

33012
Light is an electromagnetic wave, principle of relativity, definition of wavenumber
Web page .. PDF .. Word 
4212
Mathematical expression for a traveling wave, transverse vs. longitudinal waves, direction of travel for light, superposition of waves
Web page .. PDF .. Word 
4412
Standing waves, resonance, wave energy, intensity
Web page .. PDF .. Word 
4612
Intensity of a point source, Huygen's principle, twoslit interference, multslit interference
Web page .. PDF .. Word 
4912
Transmission diffraction gratings, single slit diffraction
Web page .. PDF .. Word 
41112
Combining diffraction and interference, Rayleigh criterion for resolution, dB, speed of waves on a rope
Web page .. PDF .. Word 
41312
Speed of waves in liquids, Doppler effect, polarization
Web page .. PDF .. Word 
41612
Index of refraction, frequency remains the same in different materials, thin film interference, reflections
Web page .. PDF .. Word 
41812
Snell's Law, reversibility of light paths, total internal reflection, fiber optics, lenses, spherical aberration
Web page .. PDF .. Word 
42012
Chromatic aberration, astigmatism, focal length , image formation, thin lens equation
Web page .. PDF .. Word 
42312
Projector, eye, camera, sign conventions for the thin lens equation, simple magnifier, multilens systems
Web page .. PDF .. Word 


Handouts:
Mathematica keyboard shortcuts & physical constants
(This is a Mathematica notebook; save it to your computer first, then doubleclick to open it with Mathematica)
Sample longform lab report
Walt's hints for a better lab report
Historical Notes, demonstrator
applets, songs, etc.
Problem Solving Advice from Prof. Suzanne Amador Kane 
Math
Appendices  Helpful mathematical material collected
by Haverford and Bryn Mawr Physics majors some years ago, edited
by Lyle Roelofs. (See also the math summary on Moodle.) 

Electric Field Hockey! To get started, click on "Run Now". Arrange the positive and negative charges (drag them out of the supply) so that the puck goes into the goal. Be sure to click the buttons for "field", "Antialias" and "trace". The black vectors show the direction of the field, but not its strength. The blue vectors coming out of the puck show the forces from the negative charges, while the red vectors show the forces from the positive charges. Try varying the mass! 


Coulomb's Law song (karaoke version!) 
Here's a nifty twodimensional electric fields and voltage applet.
Use the slider bar to determine the strength and polarity
of a charge, then click to place it. For me, the "Go" feature
doesn't work well, since I can't see the charges while they're
moving. But, the displays of the field configurations and
equipotentials are pretty neat. Red equipotentials correspond
to positive voltages (relative to the voltage infinitely
far away) and blue to negative voltages.




Carl Friederich
Gauss biography Note: Gauss did so much, especially in math, that
you will not find his law explictly mentioned here! Instead,
it is referred to as the "law of quadratic reciprocity".
He originally derived it as a purely mathematical result
for functions that fall off as 1/r^2, and then it was
applied to the electric field. 
Gauss in 1803 



Oersted
Song
(Including link to Techno version by Aziz Khan!) 


A
really nice DC motors demonstration

Right hand rule song (lyrics and chords) 



The
Mechanical Universe:
Maxwell's Equations
Free registration required. Choose
episode 39. 



Background
image: A rare triple lightning strike (this is not a multiple
exposure), taken on the great plains by Dr. Steven Horsburgh. 

