Physics 121 Lecture Summaries Contents:– Lecture 1 Introduction to Fields Lecture 2 Electric Charge Lecture 3 Electric Field Lecture 4 Gauss’s Law Lecture 5 Electrostatic Potential Lecture 6 Capacitance Lecture 7 Resistance and Resistivity Lecture 8 Circuits, Part 1 Lecture 9 Magnetic Fields Lecture 10 Magnetic Fields from Currents Lecture 11 Induction I – Faraday’s Law Lecture 12 Induction II – LR Circuits Lecture 13 LCR and AC Circuits, Oscillations Summary Phase Relations in AC Circuits 11/17/2012

- - + Lecture 2 Summary: Electric Charge + - + CHARGE is a basic attribute, like mass + - and - + attracts repels Unit: 1 Coulomb = 6.25 x 1018 basic charges e = 1.6 x 10-19 Coulombs Charge is QUANTIZED MATTER is normally electrically neutral - + Protons: charge +e, heavy Electrons: charge –e, light Conductors: charge free to move Insulators: charge positions fixed

Summary: Electric Charge Lecture 2

Summary: Electric Field Lecture 3

Summary: Gauss’s Law Lecture 4

Summary: Electric Potential Lecture 5

Summary: Capacitance Lecture 6

Summary: Lecture 7 - Resistance and Resistivity

Summary: Lecture 8A - Circuits, Part 1

Summary: Lecture 8B – RC Circuits, Part 2

Summary: Lecture 9 – Magnetic Fields

Summary: Lecture 10 – Magnetic Fields from Currents q1 q2 r

Summary: Lecture 11 – Induction I – Faraday’s Law

Summary: Lecture 12 – Induction II – LR Circuits

Summary: Lecture 13/14 - LCR & AC Circuits, Oscillations

Summary: Phase Relations in AC Circuits