State the law of conservation of electric h ; kk (6/he6k)nq/lcb qx8mpwcharge.

  Is it possible for two negative s j,9we9pixbkdi:24t charges to attract each other?

  Is it possible for a positive anfku; *u8g wo60s: aa)wuw:o jvd a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Durinh: tg(x: *xzo grn+kv3g the process the glass rod acquires a positivrxg* g:tx :ho3nz+k(ve charge and the silk

  A proton carries a

  The model of the atom sqtn3y6. p9sx qv(qlb4 hows a

  A neutral atom always q u;53 2m-a5sieeb;km8ddxhv has

  An atom has more electrons than protons. The at-uhh /qkg.g* hom is

  Materials in which the electrons are bound very tightly to the nuclei x0dk, qoeu,6yi+ cx )s ay;u39uvi -ngare referred q6au0s3 ;+vxc e, yo)dk-g,xii u9unyto as

  Materials in which the ef -g 8sr6e3hg3ddpi8 jlectrons are bound very loosely to the nuclei and can move about freely within the materd63fj-8 gghp rdie3s8ial are referred to as

  A negatively charged rod is brought near one end of an uncharged metalj 10v 1hxz4nrl bar. The end of the metal bar farthest from the charged rod will 01 4x1jvzlhr nbe charged

  Sphere A carries a net positive charge, and sphere B is neutr.b g qboyq+q4pr-j 36ral. They are placed near each other on an insulated table. Sphere B is briefly touched qy+ r3ojq4br g6 .-pqbwith a wire that is grounded. Which statement is correct?

  How can a negatively c8khqtyzz+8ia+n:. t d harged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touj1gi9w4u-44 .lx iudhps65og mxn b- fched with a positively charged glass rod. Ts 4f-pojh- 6ui.1mu ixngwgdl594 b4xhe electroscope

  An originally neutral electroscope is grounded briefly while a w6nge* 06ks1n (rpbpv ,.ywfppositively charged glass rod is held near it. After the glass rod is removed, the elece16 *.vr sk,bwpnygpn w60p(ftroscope

  A positive object touches a neutral t.ubo 7x0;-k fvtnw ,selectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does b0vw,tnx. 7fk;us-to not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A ,9ipe zr8vm)oneutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed by thv8p,er zi9 o)me first ball, strikes the first ball, and stops. The first ball rolls forward, but does not 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 Coulomb cons zl6+z (*qwi2qy wd0dctant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargeb,59dc8mhv jnu xoj2:p9pf,sj usi( ( is larger in magnitude than thscjm o pijs599j(up8u, nv( h2f,:xd be second charge.

  Sphere A carries a net charge and sphere B is 3tklv 1 0;w qlygx1+kfxip2b*6 ks+runeutral. They are placed near each other on an insulated table. Which statement best describes the electr13skw ;yg*k0xit1lqx r+ l6v2pb+ukfostatic force between them?

  Two charged objects attract each other with a certain force. If theg7m*we ik94br charges on botwib kmer4*7g 9h objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractiv;1ci;mosj.k ce forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual for .icj;;c s1mokces?

  Two charged objects attract each other with a force F. What happens to t .e-e3rl:si2ucp 2cxc he force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-pcis3e.xl2 c2ue:c -r fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happe-zf*qvz :2a urns to the magnitu*:aq -vz2urzf de of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are sep3ogm ej8z)c3 o3chp c,arated by a distance of 1.0 m. What happens to the magnitude of the forcezc 3oc)gcp3j 3m h8eo, on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happew95 bmv * y/v/za4fylvns to the size of the force on the proton if the electron is mzv4/ a/ymv w9lv5fb*y oved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a s6dgt( qkk. 2exfywgoo8:v 7c. quare. When 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, ikfdg2kyv:q. .xg68c7o o e( twdentical charges of -Q are placed at the other three corners of the square. What is the magnitude of the net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the ceng .+on ivut7o(6 peb7wtroid of an equilateral triangle. When a second charge of +Q is placed at one of the be u7g.v( o 7ionpt6w+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 due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vector4 wx:6 *f:gm)up)h0:spss;;yychccgqv z u :m ?

  At twice the distance from a po9n.g by0 -upqcint charge, the strength of the electric field

  Is it possible to have a zero electric field valu vk.v xl9iet,2;pc.yee between a negative and positive charge along the lilytke,.vcv 9exi .p2; ne joining the two charges?

  Is it possible to have a zerd16ma q zmt) fhl ng.20zb,dd;o electric field value between two positive charges along the line joining the two ).;lg60hqdb2 f m,a1d znzmtd charges?

  Electric field lines near psitive point charg zc5g6:jjnru;0ye:d:x tub/n es

  The electric field s5 c-6ohzi 8odehown

  Can electric field lines inthb - 3uc*j0.lr7 itz lac f3zu.o iy63cv8;xgfersect in free space?

  A solid block of metal in electrostatic equilibri b fvcca gc+p c30gg,ol4,),7 v-zjnqcfey:0wum is placed in a uniform electric field. Give a statement concerning the electric field in t,vl7vpb0cy,c+ 4ecfz,)g gj-3:a ogq0 wfccnhe block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are ea j8gbr(ft;j 2y)ewo9 sq zzmj1bvt0 75ch given the same charge, the electric field (E) midway between the center and the sur0z89bjfbvw5t7jy tqg;r 1)(o ze jms2face is

  A cubic block of aluminum rests on a wooden table in a region where a uniform * 0g.vh e/nvpw1ajr7 selectric field is directed straight upward. What can be said concerning the charge on the bloc1rjs v*0e7wa.hv np/ gk's top surface?

  If a conductor is in electrostatic equilibriumvdhxn .xhvd4; ls4d6) near an electric charge

  A positive point charge is enclosed in a hollow meta7*d- k m.vul--)skmj ygg,e+cgc*nghllic sphere that is grounded. As compared to the case without the hol jsln-7ccg+gkggyue mh.*-k-*)vdm ,low sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in sub ;ov 5dkc o)cu0*j9d(rq.g c)xv/zu , /jtrotatic equilibrium.

State Gauss's law.

  The charge carried by one electron36rekjbl )zvz5( in.e2vkc;j 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.h kir t2pvw(+bta: ,1e r,tove.d,8 ;tztbrw.00 mC. How many more protons than ele(a bk.w pd,r ibv8rwtt:zh1r+eot;.e 2tv, t,ctrons does this piece of plastic have?

  What is the charge on 1 kg i)axv (1d./6kqos q qwof protons?

  An atomic nucleus har6xd4v 3d.o1u9gfc+vy m4k s pcs9w 3bs a charge 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 :uykpmyr+kl7r4s26 ro6pd0q 2.0 and -4.0 mC, respectively. What is the magn:2porkup6 +4 r0 7smlqr6yykd itude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 :j tqb/y9 ,tuff9l9hj N./bjfl:9j ,t htu9qyf9 What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them ofyc g2 )mlaz(p1 1.0 N. How far apart are they?

  The force between a g5d4s- tmq7yil0vr + a$30 \; mC$ 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-N force. If they a (my alve:hbs87k(hb 8re moved to a new separation of 8.0 cm, what is the ae:kv88 bh7bm((yhl selectric force between them?

  Three identical point charges of;q9 rhu;bk58/ulr zcu 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mark. Wu q/lh95;uuz8rbc; r khat are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed tw*r-q: 5r1ol 3aj- kpsnei ,psc3o3fon 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 mq-3jwfokes *, o1 l53iant3- r:cspp ragnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the fo ri)1 myl-jfar ga 5 j2/jlkdgtv6;;o-llowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 moi5r-dt2 -)y ;/ ;1ajm 6lgargkjjlvfC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and 5r-t 3la5 a,bey.9j a6rdf typ5vk.w pa second point charge of -Q is placed at the upper-left corner. It is observed 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 place .r b-5 6lat9d, j55 p3rt.kveyaawpfyd 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 esi8l5dz0f85l 6dcu 4/ubfw ,zu v qw-bl)r t0at (0, 0). Wh8-l z 6w0/ fc,q wrfliubl d8455zvbdt euu0s)at is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.flp0,vz,u fqrzxa jp-2-869ulg wi*x30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0).q6augz - u- wxvr09 pi j,f*pl2x8,fzl What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertic)x l6y89fxgzs es of an equilateral triangle whis yf)96g8zx lxch measures 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 +4Q, which are separated by 3nm;46 e0)pqa01g q1zj2 ltj9pou:0aw gwejzl .0 m. At what point, on a line between the two cha6a;0 algj wop21qe)u z0p4jlw qmnj gt1 :ze09rges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge i njfx oo cs4s*q8aac)ui1.1; os at x = 4.0 m. Where on the x-axis can a thi1c8na1;)oxc4 i j.oq o fasus*rd charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q ak3oe.kl pq9v (zzsbx au,8+;is placed at x = 2a. Where can a third positivu.v3z(lq,p e+aob;a8x9 kksz e charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3ar up,m f1ti*+b, p-ua.0 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 agai/2an(r6reec,( w bmw snst the force of gravity by the attraction of a fixed proton some distanb, er26/s(em(w rcwance above it. How far above the electron is the proton?

  Two 0.20-g metal spheresi9n sqro3rm .+ are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and +3. niq 9morsrthe electrostatic repulsion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a cm7: r-nzjn1 cg d+o1sg5nhes3+fs- paharge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucleuso 3r7:znj f 15ahgn+snsd m- e+sc1g-p?

  What are the magnitude and direction of the electric field at a dista:a(2 1ye ayzsqnce of 1.50 m from a y e2zy :(aq1as50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. :l rqqpe ,mb5(fj+/j tWhat is the magnitude of the electric field at the location of th tjf/eqrlb(,: +qj5mpe test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dn7tbjy 53gyu4 irection of the electric field?y3 g 4byutj57n

  A 5.0-C charge is 10 m from a small test charge. Wh/qtt m r8,;fvjat is the magnitude of the force experienced by a 1.0 nC charge/ mr,8jtfvt q; placed at the location of the test charge?

  Two point charges each have a value oxbg7osxab-oe9p pby2-x ;6bat):)vpy b *)s gf 3.0 C and are separated by a distance of 4.0 m. What ip )b) 2xyegt7 -p;:y6ao-p axsb) vosg bb9*bxs the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC c5iy du -li6 ;1wbyek8qharge is placed at the 50 cm mark. What is the elebq;iiky u1l yw -856dectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the j7yz77ib adv3jxr11j 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. iz77a173ydvbj1j r xjAt what point 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 pw++9c uqocp5q8iw:v = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway bet q5q+9c p: vwc+8oupiwween them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The lk7kvh3q whx:*ast corner is occupied by a -3.0 mC charge. Find the electrh3*x:k hkvq 7wic field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the cod:nzhr+ .iqp ami8q8,my1: ku2xf*az rners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.02:nf1q8q8x m,paidh :zi.ymk+ u*zra 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 mC wheypg n0 +gi-/toaq( c0xn it is placed in a uniform electric field. What ixy qcgaoi gp0/t 0+n-(s the magnitude of this electric field?

  A particle with a charge of 4.0 mC has g ucnl .qw z35h4o5jmms80r8u 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 field 9)pgd r u4on34dhof,jof 6000 N/C pointinho)frjd4nd,gu 3po 49g downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charrbo ol,yv-76 s3+w(b(,:mpthvbh jsoge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the f jo mlt,w:bo b6(,ovvy+-shsh3 (7brp orce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge s1e-g oqm3q 8 hfhbt .i7jhkwn59m6h/of +2.0 mC. What is the magnitude of the f-h8. jtnbmqsiekmqh3h6o7 h91/ gw5 electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is th,fkts6 );ct3 czub rc*e electric field 6.0 cm from the center ,z tsf)ur tcb3c*k;c6of the sphere?