×

### Let's log you in.

or

Don't have a StudySoup account? Create one here!

×

or

26

0

30

# 393 Class Note for PHYS 212 at PSU

Marketplace > Pennsylvania State University > 393 Class Note for PHYS 212 at PSU

No professor available

These notes were just uploaded, and will be ready to view shortly.

Either way, we'll remind you when they're ready :)

Get a free preview of these Notes, just enter your email below.

×
Unlock Preview

COURSE
PROF.
No professor available
TYPE
Class Notes
PAGES
30
WORDS
KARMA
25 ?

## Popular in Department

This 30 page Class Notes was uploaded by an elite notetaker on Friday February 6, 2015. The Class Notes belongs to a course at Pennsylvania State University taught by a professor in Fall. Since its upload, it has received 26 views.

×

## Reviews for 393 Class Note for PHYS 212 at PSU

×

×

### What is Karma?

#### You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/06/15
Chapter 22 Electric eld WV hm a chggim m mmao by mm phiv s w pmmmmcemg ficemmm mmg gmv ryg J magmf cg bce na 1 quotfr V rk Electric Field Region of space where another charge would be in uenced by a charge or distribution of charges Units of electric eld is NewtonsCoulomh NIC Electric Field is a vector eld Electric Field points away from positive charge and toward negative charge It39ll0 3 3 UiSI IIL Electric Field Lines Michael Faraday 19th Century Thought of space as lled with lines of FORCE along which charges would accelerate The Strength of the Electric Field o Electric eld vectors are tangent to electric eld lines Electric eld lines are drawn so that the number of eld lines per unit area measured in a plane perpendicular to the lines is proportional to the magnitude of the Electric eld In other words the electric eld is strongerlarger where the lines are dense or close together Electric Field Lines Also known as lines of force Number of linesarea proportional to eld strength Lines point from to charge just like eld Electric Field Lines and Electric Field Vector ARE DIFFERENT 39 Positive test r charge quot41 a b Electric Field Lines extend away from Positive charges Where they originate and toward negative charges Where they terminate Field of g point charge gt F In391 E 2 11m 1 QO gt0 quot r r go a a m 39ln t E 4 b a If f T V W 101 004 Multiple Point Charges Generalized application of Superposition Principle Sample Pmb 222 39 Find magnitudes of E eld at point P 39 Find Vector Sum to get the NET E eld at point P HERE WE USE SYMIVIETRY Q Examp e Electric Dipoie if A A p l J J 7H 1777 rd 7 7 f V gt QIJ 1L Mme etemrm 3 db mole wxwrg sq M1 and aremeth pilL JCiL TM a 9151me Lil Tiff3 J9 pigi i39 T 7 13 quot a T J 7 1 Q I39n 94 quot Op LEQLUJ U J 0 along pwlpgug ma a o JMJULOJLI u J39wa frg dg 39 quotw w m 391 g w P0y jimgm irw r Md g m y ids smu u l gm mudj 39 F FL L 1quot 1 W 039 T T EVE W3quot 0390 390 I 1 4 w ngm J will 1 Iggy 311153 the Dipole comtimme 472290 I 1 6 E 2 2 Dairiejrmmm 11rng erzetwjr lt3 LEEEUQ E 1 q in x 2 2 472190 a y cos 6 1 q a x 2 2 472190 a y Jazy2 Dipole cantimmedl Aizmo q 9 iIq 39390 390 113 39 r 7 r AQW Dipole continued EE 9y dkiq 39390 p 390 The pole p Lem 2qa T Wl h aw i me 5193pwiijurmyhiom E If ygtgtag them 32 is mg ig b e compared t0 372 and can be 1 2qa c in the demmimtmg 4723980 a2 y2 l I eld due to a e m nmms distributim 0f charge Charge Density De ne charge densities different charge distributions linear 3M Cm symbol is lambda surface g Cmz symbol is sigma volume p CLIP symbol is rho mm jo WEWQEJWM SWIMWEme a admgxg Example i Cm mmns Distributiam 0f Charge Skubgi ru r rm lm and m 1 dx dEy 2 2 sm 6 4780 x y E ample i Caomiimmms Distribution of Charge y 2 472190 x2y2 E 3M 33 mm 14ng 1 2de dE y 1 x 2 2 2 Example a Cw mu ms Distributim 0f Charge E Z A L 47 803 L2 4y2 4 Example Continuous Distribution of Charge Consider the limit as the wire becomes infinitely long 0 L gtgt 4y 39 4y2 becomes negligible compared to L2 but y is still nite recognizing cylindrical symmetry replace y with r Example of Field Line Plots Example of Field Line Plots Effect of a nite test charge on a conductor B i 5 If it H m Example a Matiom 0f 9 charged Nick in an Electric Field 1 i W creme Lune Lng Ul l ve ciog i39iy fem o l 139 r lm w 399 E l L w 393311quEVSIIEJ 3010 NC m the fill 13 480 gtlt1017 N a A a 13 480 10 N F QE 2 eEi a X 31 l m 911gtlt10 kg N A 60x1019c300 i A a 53gtlt1013 13 A C S2 Example a Moti m 0f 21 charged particle in an Electric Field K zlmv2 2 1 m m c K 911gtlt1031k 26gtlt107 a 53x1013 l 2 g S 1717 ar 17 0 53gtlt1013 zf05gtlt106s S 17 26gtlt107 f S Water Molecule Dipole The 10 electrons with charge I tend to gather in vicinity of the oxygen nucleus Dipole lm external Emfield wants to rotate to align llself with eld but the center of mass doesn t Uenslale 1 F Kinematics and dynamics 39 ir if Electric Dipole in a Unifmm Field Torque Potential Energy F qE I 13 8 AU 2 IpE sin Hd 239 dFsimQ 90 6 AU 2 pE Isin 6016 60 a r 7 Wng 2 J0 Wham 3 gt909 1 II E D1 9 5 CD U pEcos 6 cos 900

×

×

### BOOM! Enjoy Your Free Notes!

×

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

## Why people love StudySoup

Bentley McCaw University of Florida

#### "I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Kyle Maynard Purdue

#### "When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the material...plus I made \$280 on my first study guide!"

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

#### "It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!
×

### Refund Policy

#### STUDYSOUP CANCELLATION POLICY

All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email support@studysoup.com

#### STUDYSOUP REFUND POLICY

StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here: support@studysoup.com

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to support@studysoup.com