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# Non Calculus Based Physics II PHYS 2020

Marketplace > Volunteer State Community College > Physics 2 > PHYS 2020 > Non Calculus Based Physics II

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COURSE
PROF.
Staff
TYPE
Class Notes
PAGES
9
WORDS
KARMA
25 ?

## Popular in Physics 2

This 9 page Class Notes was uploaded by Mrs. Charity Bradtke on Wednesday October 28, 2015. The Class Notes belongs to PHYS 2020 at Volunteer State Community College taught by Staff in Fall. Since its upload, it has received 28 views. For similar materials see /class/230705/phys-2020-volunteer-state-community-college in Physics 2 at Volunteer State Community College.

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Date Created: 10/28/15
Ch 15 Electric Forces amp Electric Fields 151 Electric Charge There are 2 types of electric charge positive and negative Like charges repel each other different charges attract each other At the atomic level charge arises from the presence of protons positive and electrons negative We find that electric charge is quotconservedquot We don39t see the creation or the destruction of electric charge only its rearrangement We can give charge to an object by adding or taking away charges from it For example I can give an object a positive charge by 1 adding positive charge or 2 taking away negative charge 5 I 395 7 Q We also find that charge is quotquantizedquotit comes in discrete units not with continuous values quot aCOX code 6 LG O e D JsaLPJn raj arr 5 Jami 4 145 xz quotcwix ho r ng vl hutk aimP z11f4 A pal3913 x Ax0quot1 C e o wequot Aust 91m c 32 r 1 152 Insulators amp Conductors An insulator is a substance that doesn39t allow the free movement of charge a conductor is a substance that does allow the free movement of charge Charging by conduction the direct transfer of charge from one charged object to another neutral object Charging by induction charging an object using a charged object in its vicinity a r 3 44 Pa I r ig ll Ell 35 4 Q ALIg Ag 5 hu 5 gap n L Is cu l 06 1 9 j 6 11 Q Q egt It39s always the case that the opposite ends up closer to the charged object and thus feels a greater attraction than the repulsion ofthe like charges Down 1 AAquot 9 153 Coulomb39s Law n L P tramwas Jlf rhM 7 4 5quot ham r Q 11 0 A a H Flquot 5 par4 J 7L 2 4H I F aquot E Al MIMI5t s 1 L H a 397 M1 E k ifw FM1 Cuesam La r4f Y 187 1 IV39M39LCz mm 5 I f l ug AI ro tJA 94 73 Parr 4 6 Sf 1quot 1 PH 7 o H w J Q39q IV N sniuxw ulSLd 3 43 Osun MIM d is dz K9V 09V 6 Example Find the forceon the rightmost charge below 1 11 X Lag LOk 5 z in Ll Lem Ci Ltz39c39w c LIZIZ39ZZL r7 Lam s ltcmquotks Qnm cl45 LDMWW E logev 1 A m4 F M51 1 w bu AJ39 4 LLlH 3 L l h JL Lab quotA quotV4 w for J 1 7 I 45 154 The Electric Field The electric force involves 2 charges interacting with each other How can we describe the effect of a single charged object on its environment To do so we use the electric field E which the force per unit charge f5 lmagine there is small positive charge a quottest chargequot near a larger charge 2 in 39lt quot1 bF Er 1439 E E Mi Direction of E away from q if q is positive toward q if it39s negative 2 2 lt 16 I 6 M L Going back to the previous example let39s find the electric field 100 cm away from the 200 0 charge gtlt c c X77x11 2 W X E C 47 amu39 z page may4 3 quot lt LJquotlt 3992 36 AcuA lo Aw h 5 gt Em E gala24

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