33–122 Electomagnetism
Spring Semester 2023
(a course for chemists and biologists)

Overview

Syllabus

Problem Sets

Grades

Readings and Problem Sets

This page contains pdf versions of the problem sets for the course, in case you forget to pick up a problem set in class.  Please note that solution sets will only be available at the lectures, although you are free to visit my office to get a copy if you happen to lose any of them.

Each problem set is due at 3:00 pm at Wean Hall 7414 on the date indicated on the problem set.

Week I:  16 – 20 January

Problem Set 1:

Monday

No lecture

Tuesday

Lecture 1. Coulomb’s law and charge
Read before the lecture:  sections 16.1, 16.2, 5.5, 5.6/chapter I.1–I.5

Wednesday

Lecture 2. The electric field
Read before the lecture:  section 2.1

Thursday

Recitation 1. Coulomb’s law and vectors

Friday

Problem set 1 due

Week II:  23 – 27 January

Problem Set 2:

Monday

Lecture 3. Distributions of charge
Read before the lecture:  sections 16.3, 16.4/chapter I.6–I.8

Tuesday

Recitation 2. Distributions of charge

Wednesday

Lecture 4. The electric potential
Read before the lecture:  sections 16.5, 16.6/chapter II

Thursday

Recitation 3. The electric potential

Friday

Problem set 2 due

Week III:  30 January – 3 February

Problem Set 3:

Monday

Lecture 5. Dipoles
Read before the lecture:  section 16.7/chapter III.1–III.4

Tuesday

Recitation 4. Electric dipoles

Wednesday

Lecture 6. Capacitors
Read before the lecture:  sections 16.9, 16.10, 16.11/chapter III.5–III.9

Thursday

Recitation 5. Capacitors

Friday

Problem set 3 due

Week IV:  6 – 10 February

Problem Set 4:

Monday

Lecture 7. Symmetries
Read before the lecture:  chaper IV

Tuesday

Recitation 6. Symmetries

Wednesday

Lecture 8. Gauss’s law
Read before the lecture:  sections 16.12, 16.13/chapter V

Thursday

Recitation 7. Gauss’s law

Friday

Problem set 4 due

Week V:  13 – 17 February

Problem Set 5:

Monday

Lecture 9. Currents, Ohm’s law, and power
Read before the lecture:  sections 17.1–17.4, 17.9/chapter VI.1–VI6

Tuesday

Recitation 8. Currents and resistance

Wednesday

Lecture 10. Kirchhoff’s rules and RC circuits
Read before the lecture:  sections 17.5, 17.6, 17.7/chapter VI.7–VI.11

Thursday

Recitation 9. Kirchhoff’s rules and RC circuits

Friday

Problem set 5 due

Week VI:  20 – 24 February

Monday

Lecture 11. A circuit model of an axon
Read before the lecture:  sections 18.1, 18.2, 18.3/chapter VII.1, VII.2

Tuesday

Recitation 10. More on circuits

Wednesday

Lecture 12. A circuit model of an axon
Read before the lecture:  sections 18.4, 18.5/chpater VII.3–VII.5

Thursday

Recitation 11. Nerves
EXAMINATION I
Material covered:  chapters 16

Friday

———

Week VII:  27 February – 3 March

Problem Set 6:

Monday

Lecture 13. Magnetic fields and magnetid forces
Read before the lecture:  sections 19.1–19.4/chapters VIII.1, VIII.3, VIII.4

Tuesday

Recitation 12. Magnetic fields and Lorentz force law

Wednesday

Lecture 14. A current loop as a dipole
Read before the lecture:  sections 19.5/chapter IX.1–IX.3

Thursday

Recitation 13. Magnetic dipoles

Friday

Problem set 6 due

SPRING BREAK:  6 – 10 March

Week VIII:  13 – 17 March

Problem Set 7:

Monday

Lecture 15. Atomic dipoles and electric and magnetic forces
Read before the lecture:  section 19.5/chapter IX

Tuesday

Recitation 14. Electric and magnetic forces

Wednesday

Lecture 16. The Biot-Savart law
Read before the lecture:  sections 19.7, 19.8/chapter X

Thursday

Recitation 15. The Biot-Savart law

Friday

Problem set 7 due

Week IX:  20 – 24 March

Problem Set 8:

Monday

Lecture 17. Ampère’s law
Read before the lecture:  section 19.12/chapter XI

Tuesday

Recitation 16. Ampère’s law

Wednesday

Lecture 18. Faraday’s law
Read before the lecture:  sections 20.1, 20.2, 20.3/chapter XII.1–XII.4

Thursday

Recitation 17. Magnetic flux and Faraday’s law

Friday

Problem set 8 due

Week X:  27 – 31 March

Problem Set 9:

Monday

Lecture 19. Alternating currents
Read before the lecture:  section 20.3, 20.4/chapter XII.5–XII.7

Tuesday

Recitation 18. Generators, transformers, AC currents

Wednesday

Lecture 20. Inductance and magnetic materials
Read before the lecture:  section 20.6, 20.7, 20.8/chapter XIII

Thursday

Recitation 19. Inductors and inductances

Friday

Problem set 9 due

Week XI:  3 – 7 April

Monday

Lecture 21. Waves and their basic features
Read before the lecture:  section 21.1, 21.2, 21.3/chapter XV.1–XV.3

Tuesday

Recitation 20. Maxwell’s equations

Wednesday

Lecture 22. Standing waves, travelling waves, interference
Read before the lecture:  sections 21.4, 21.7/chapter XV.4

Thursday

Recitation 21. Properties of waves
EXAMINATION II
Material covered:  chapters 17 to 21

Friday

———

Week XII:  10 – 14 April

Monday

Lecture 23. Boundary conditions
Read before the lecture:  sections 21.5, 21.6/chapter XVI

Tuesday

Recitation 22. Resonant standing waves

Wednesday

Lecture 24. Energy, momentum, polarisation, reflection
Read before the lecture:  sections 21.5, 21.6, 23.1–23.3/chapter XVII

Thursday

No recitation

Friday

No lecture

Week XIII:  17 – 21 April

Problem Set 10:

Monday

Lecture 25. Refraction, interference, and diffraction
Read before the lecture:  sections 23.4–23.8/chapter XVIII.1–XVIII.4

Tuesday

Recitation 23. Polarisation and diffraction

Wednesday

Lecture 26. Single-slit diffraction, mirrors, and lenses
Read before the lecture:  sections 23.9, 24.1, 24.2/chapter XVIII.5, XIX.1, XIX.2

Thursday

Recitation 24. Diffraction and mirrors

Friday

Problem set 10 due

Week XIV:  24 – 28 April

Problem Set 11:

Monday

Lecture 27. Forming images with lenses
Read before the lecture:  section 24.3/chapter XIX.3, XIX.4

Tuesday

Recitation 25. Lenses

Wednesday

Lecture 28. Magnification and magnifying glasses
Read before the lecture:  sections 24.4, 24.5/chapter XIX.5, XIX.6

Thursday

Recitation 26. Forming images through lenses

Friday

Problem set 11 due