State the law of conservatiomkmc6l(ctsan;d -:dz(b i-n )n of electric charge.

  Is it possible for two negative charggj,z0;yzs kcz/,8s fxes to attract each other?

  Is it possible for a )t,i e.ta obz:positive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During l ;6em/tr5wj9zgdp5o e6 2(orpgw9ivthe process the glass rod acquire2 g wm6t/ ir edowjl5 zr9;vp5pg9(6eos a positive charge and the silk

  A proton carries a

  The model of the atom sho+cz)tp(u bgss)q 8ex 9ws a

  A neutral atom always hasy8 o7ka3ulh*)ba h )bb:zcd/ o

  An atom has more electrons than protons. Theg )zy+bhb )qlvl)s;2d atom is

  Materials in which the electrons are bound very tightly to the nuclei*xhl1je 6rf w/o0 41 vg6bc u*d; :apxnkqq/yn are referrk/n pqn 04fqe;a 1o6yxrcvbh ujd1gwx6*/:*led to as

  Materials in which the electrons are bound very loosely to the nuclei an,a)jr 2otd9mpd can move about freely with ot9dam2)rpj, in the material are referred to as

  A negatively charged +) vkps;z2lgxrod is brought near one end of an uncharged metal bar. The end of the metal bar farth )2x;vlsk gp+zest from the charged rod will be charged

  Sphere A carries a net posi+uph- g +4gxgfb +hul1 dht,2ytive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briy1+tug 2,4g-+d b+lhhg hxu pfefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charg 4,culfyje 1v:yq(om +0 l1udhe an electroscope positively?

  An originally neutral electroscope is briefly touched w ;;+zjwuau :zaith a positively charged glass rod. The electroscopaazz:wj uu;+; e

  An originally neutral electroscope is grounded briefly while a pobnsx4 wxl v7u4 bwxex2y3s78) sitively charged glass rod is helxb43b8ux7sx ) lw7xnvesy42 wd near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscz cr)e3e,:k cuope, and the leaves separate. Then a negative object is brought near the ele,kz)e u ec:rc3ctroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tableyh n.ifr2 7 pc3hv07(lebz.hq . A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed by the first ball, strikes the first ball, and stops. The first ball rolls forward, but does ne 0rph(yq h2b..l7vzfh3in c7ot touch the negative object. At no time does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Cok p4tppb70m74w e4 g b*io/qiuulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated bkgl9ax0 g- j fiof.seo3-v y*+*s 6l3 lqjft8my a distance d. The first charge is larger in magn9ay 3qsjfvso*oe -lgfxlgf.l itk0*m386+j -itude than the second charge.

  Sphere A carries a net charge and sphere34 0egobg i6im;yvk/i B is neutral. They are placed near each other on an insulated table. Which statemen3 im i6ig;vbk/ gy4oe0t best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the czztgjj x-obl 0+(r,q, harges on both objects are doubled j t(rgz ,b0,j+l q-xozwith no change in separation, the force between them

  Two charges are separated by a distance d and exert mutuv7ir,yo; v:l nal attractive forces of F on each othervn;7:iolry, v. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract ew,oj**i,plb qbc 6xfopk)3kv n v6h7q,w6 .qgach other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between to vq,wnxj.6*qwqb f,bpo73v,*hg)ck6 pi 6lkheir centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton ospmpbft2)*ca/t j*6 are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second elet/ j*)fo*ma 2pbtspc6ctron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. ;pwask9 y/it 4 What happens to the magnitude of the force on the first electry;4 9ski pt/awon if a second electron is placed next to the proton?

  An electron and a proton are separated by a dp;h h6 ).pr z4zwcy 5upd+wxo:istance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the pryruw;h5o4.cp+pp): dhxz wz 6oton?

  A point charge of +Q is placed at the center of a square. When .nfiz9;n1yh xoflt 7+a second point charge of -Q is placed at one of the square's corners, it is observed that an electrostatic force of 2.0 N acts on the positive charge at the square's center. Now, identical charges of -Q are placed at the other three corners of the square. What is the magnitude of thef+h ot;f7l1xz. n n9yi net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triwxwkgbd097 l9 angle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts on it. What is the magnitude of the force that acts on the center charge 70kx9g9bd wwldue to a third charge of +Q placed at one of the other vertices?

  Which of the following e5.hkiw. -0bbsrl- avis not a vector?

  At twice the distance from a point charge3kl9mmqyk80dh0eoz 1udw3 p7 , the strength of the electric field

  Is it possible to have+e/tovxmp: edm) k5*tubgg(s.1 )m* 0jxhasg a zero electric field value between a negative and positive charge alontgmasxmhg )x/)b*k s u.j5 ogp*ed 01ev(m: t+g the line joining the two charges?

  Is it possible to have a zero electric field value between tworavepsu(c7ckh, /l 82yoi*/y positive charges ao,h /2 u(ec/yl8 k7savpir*yclong the line joining the two charges?

  Electric field lines near psitive point r(6skj +j4q 3q4wyrxvcharges

  The electric field shown7xpyp fd. ozk5d5frh41m 10td

  Can electric field lines intersect in free space bus 8pr-m9)0jttqb)en6 i3cl ?

  A solid block of metal in electrostatic equilibrd+q- qcx.oz- nt u-ymjkut. +s20tqb1ium is placed in a uniform electric field. Give a statement conq+ou+t-jxtkqz1qdtync .-u-02b. sm cerning the electric field in the block's interior.

  If a solid metal sphere and a hollow meta(sk 8tm1c*ddql sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surface is dsk1qm8d t*c(

  A cubic block of aluminum rests on a wooden table in a region where a ubq /;nlg k:ykzx:1fq9niform electric field is directed straight upward. What can be said concerning the chargeq1gf :l9bq z kknx:;/y on the block's top surface?

  If a conductor is in ele.didx1+a rpf93:ffs2zpa: iw ctrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundedyfq c beyf9sy9)/o.:t . As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphy9fs)bt.yceqo 9f/ y: ere has

State three properties of conductors in gd:jud ws-lx7 2k48 xbstatic equilibrium.

State Gauss's law.

  The charge carried by one elecodq3me4zox6 -.2qa wmcp(p-r tron is $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.00 mC.rrv58 8,2all.kc0.h mlevkjgb-h a 8a How many more protons than electrons does this. jllghrhl8 , 8e-5.8 akvak2rmbv 0ca piece of plastic have?

  What is the charge on 1 k4dtexeb+ e,f +d9lf (gg of protons?

  An atomic nucleus has a charpeb/ ,uoh( r.jge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, have charge values of 2.0 and -4.0 mC, l gnjx8x62/u*1ht6uhopy6gc1e ;ozx respectively. What is the magnil 1 28 tx6/cu6o1hj*;xgnx hpoyzue6gtude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and thu,.bms tpekm5au 70 o9hos;qqa; )fp1e force between them is 1.0 N. What is the magnitude ofukpa7ob1pqt; uo.q ,smm 59h;easf )0 the second charge?

  Two 1.0-C charges have a force zu t/cnia .0y v4d1* r pwmj/sf-c.i8tbetween them of 1.0 N. How far apart are they?

  The force between a u*nn / og//i:chn3kbh$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0 4+u9an ox6np,a0 fntq-N force. If they are moved txq 9ft0p oa6an4+un,no a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-a-liho cl)3 :qmxis. The first charge is at the origin,ilch l)qm3-o : the second to the right at x = 50 cm, and the third is at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are pla(o2j 6x.(t+f a3 g4iabcogsi gced on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge t. jsaoc x(4g oi32i bg(af6+gat the origin?

  Three point charges are loca+gz rgyfn1;: ::nauqhted at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitu ;nq :g:rhnzfa:1 +guyde of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the centepw8 s3gtj ;.qiz)zkukfmtd,9 8j3;( p7ykqop r of a square, and a second point charge of -Q is placed at the upper-left corner. It is observe,w zy9 pzg .ukq;3) (oi tt;pm73pfskkqj8j8d d that an electrostatic force of 2.0 N acts on the positive charge at the center. What is the magnitude of the force that acts on the center charge if a third charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atp-d:xfpvxd q. t ..bb+:pq .v.bdb.txd+-xf p (0, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, mg (,l/j9xfq k0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thefk,mqxgl9 (/j direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mCt(gt nha-()vy+xmpq 7 are placed at the vertices of an equilateral triangle which measures tpmtax(vh)gq( -n+7y 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4nd8sq,fh6z1rz0tp+ f:d(at- clo-yf j3r;ey Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it woul3 1r;sffz fy,ha:dp(c6eqz0 8-y lo-tjdr tn+ d be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x.f 6buj d4ayyl .2o casp(+oe9 = 4.0 m. Where on the x-axis can a third ch uca6do+l 24.9oyaf(y ep.sjb arge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and char*j4gr*fb 1tcf8xjq ,kge -q is placed at x = 2a. Where can a third b,*j*fj qxtkr4 81fcgpositive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3. -mgiw2a 6dd w ko5);pp*epn(x0 g. A total of $4.0 \times 10^{12} \; electrons$ are transferred from one neutral penny to another. If the electrostatic force of attraction between the pennies is equal to the weight of a penny, what is the separation between them?

  An electron is held up against the force of gravity by the attraction o4 :*llbm7(pk exmbb (gf a fixed proton some distance above it. How far m b:xb( pgb(le*4l 7kmabove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductin1 -a5 )g+ (jufkkc1;zm.qdfnttec/y4-x edrv g threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until tht avmzgk f(y--j5/tdnr1)qex f;de1 cc4k+.ue angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of 1e ke ::euhkv,+40e. What is the magnitude of the electric field at a distance of 1.0 e,v :u1 eke:hkm from the nucleus?

  What are the magnitude and direction g d7yum bm*w:brns .g7, n g0r))6yemhof the electric field at a distance of 1.50 mnh6g*, ygbws: )bummy.ndrem) g7 70r from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Wh0dmj,pzh2 tvdb:x d-: at is the magnitude of the electric field amdxj, db2 hpvdt::-z0t the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dir rk6.czzu8e wq-m;lrjmg 036f ection of the electrzzm60 q ;rw 36m.fkejgr c-l8uic field?

  A 5.0-C charge is 10 m from a small test charge. +lr5 tkpai07c What is the magnitude of the force experienced by a 1.0 nC ch+rctl ka0 p5i7arge placed at the location of the test charge?

  Two point charges each have)ua(a eepn0 e wjoz/8r hta7:uo nx)my 0r4)j( a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges?ohyenua o(j) j)z080 n/p():r t ew4axaurem7

  A 5.0-mC charge is placed at the 0 cm mamxq2bvj 33kp0m w06nm 1x8g ewrk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at thewmmg0 8k2x mj xe31np3b 60wvq 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stu 3 :(h/nnahfft4ptt.rsg*e* ick and a -4.0 mC charge is placed at the 50 cm mark. At what p:*g(sfp 4hn.* euf3ttha r t/noint on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m: 5eku iknc(k3. What is the magnitude of the electric field at the point midway betwee k53ie c:(kknun them?

  Three 3.0 mC charges are at the three corners of a square okj 9v im6lhc7;f side 0.50 m. The last corner is vim9kcj7; 6hl occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges aq u(xbz g)jw(0;) r8yook/yvire placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC (o0b)wu/yy xgi8r kvqzo) ;( jat (1, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 m lelh1pkr+p83C when it is placed in a uniform electric field. What is the magnitude of this ke plhpr 1+3l8electric field?

  A particle with a chargevkd 8/; ejmigfl7g84030; jd haqzxwg of 4.0 mC has a mass of $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is placed in an electric fiel7;og/x2dl jos d of 6000 N/C pointing downward. What ch /ojsx gol7d2;arge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ballv)98q8rz 4z nkh wv,pde (8upw4 c .;6kivqfvl is placed inside a uniform el)rkpwlv 44k 8 ;ef8u6wc8hzv.vn( , qqzv9id pectric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm +2(mnppibc9 wcarries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 c(np p+2iwmcb 9m from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 hsyk4j u1-)vuw nc(tb u9 7tku 1h,lq4mC. What is the electric field 6.0 cm from the center of the 1u4 1(uncqks7 vu, lh 4ywhtbkuj)-t9sphere?