Lecture_8

# Lecture_8 - Lecture 8-1 Charging a Capacitor in RC Circuits...

This preview shows pages 1–5. Sign up to view the full content.

Lecture 8-1 Charging a Capacitor in RC Circuits I 1. Switch closed at t=0. Initially C is uncharged. => V C across C is initially zero. V R across R is . 2. During charging: As C is charged more, V C across C increases. V R across R decreases. 3. Fully charged: Current is zero. So V C = . V R across R is zero. V C V R

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Lecture 8-2 Behavior of Capacitors Charging Initially, the capacitor behaves like a wire . After a long time, the capacitor behaves like an open switch . Discharging Initially, the capacitor behaves like a battery . After a long time, the capacitor behaves like an open switch
Lecture 8-3 No net charge – no interactions with stationary charges Interactions - among themselves, with N-S poles of the earth, with materials such as iron, nickle, tapes, disks, … and with moving charges Magnetism Permanent magnets: rocks from Magnesia, compass needle, bar magnet, … magnetism action at distance like E Define B by interaction with a moving charge q magnetic field

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Lecture 8-4
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/23/2011 for the course PHYS 219 taught by Professor Staff during the Spring '08 term at Purdue.

### Page1 / 13

Lecture_8 - Lecture 8-1 Charging a Capacitor in RC Circuits...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online