PHY2054 Summer 2011

Exam 2 Review [S&V, Chapters 18 - 21.7]

NOTE: To save the time required for typing Greek letters, sub- and super-scripts, etc., the principal equations that you'll probably need are listed here by number. Transcribing them will help you get them in mind for the exam.

[§= section]

Ch 18. DC circuits[ omit § 18.8];

§18.1 emfs & internal R; Eq.18.1

Series & parallel R-connections, Eqs. 18.4, 18.8

§18.4 Kirchhoff's Rules

RC circuits, Eqs. 18.7, 8, 9

A qualitative question from § 18.7. 18.8 is possible

Ch.19 Magnetism]

Magnets; earth's B-field §19.1, 2

Magnetic forces Eq. 19.1

B-force on a current Eq. 19.6

Torque on a current loop Eq. 19.6

Charged particle motion in B field Eq19.10

Long, straight wire Eq.19.11

Ampere's Law Eq 19.13

B-force between parallel conductors Eq. 19.14

B field of loop & solenoid, Eqns.19.15, 16

Ch. 20. Electromagnetic Induction

Magnetic flux & induced emfs §20.1

Eq. 20.1

Faraday's Induction Law Eq. 20.2 (note Lenz's Law!)

Motional emf Eqs. 20.3, 4, 5

Lenz again [be sure to review §20.4!]

Generators Eq. 20.7, 8

Self-Inductance Eqs. 20.9, 10

RL circuits & inductive time-constant Eqs. 20.13, 14, 15

Energy stored in the B-field Eq.20.16

Ch. 21 Alternating Currents [through § 21. 7 only, for this exam]

rms concept for voltage and current § 21.1; Eqs. 21.1, 2, 3, 4

R, L, and C in ac circuits: §'s 21.2, 3; Eq. 21.5, 6, 8, 9

§'s 21.4 and 5 will be covered lightly; emphasis on Eqs. 21. 13, and 21.16

Resonance; Eq 21.19

§21.7: Transformers: Eqs. 21.20, 21, 22, 23