State the law of conservation of electric charg ug mn,ik7/ozmfnwd-4jb 2upwz8/q)4 e.

  Is it possible for two neg ,p p)0wagcl jhg +3k;np72u-wp leuo6ative charges to attract each other?

  Is it possible for a positive and a negative charge to mth w69:2 e( xsbrw.urattract each other?

  A glass rod is rubbed with a piece of lmh u(0ch(v trq.v5 .asilk. During the process the glass rod acquireh.vrav l(.c50 t mhq(us a positive charge and the silk

  A proton carries a

  The model of the atom shows,1ziz h y2. 0lcxb9eioa*zuh ; a

  A neutral atom alwayv2bs0 a:aeu3bx 0o+gy s has

  An atom has more electrons than protonsqeql*rh *a sxhl6e3*0 . The atom is

  Materials in which the electrons are bound very tightly to the nuclei aretoumc*kx yn)4nu) f. -*tby y3 referred to tkcy) ny)y utmb-*no.34fu x*as

  Materials in which the electrons are bound very loosely to the nuclei and canx :m+mxx5; y,lvnvxt - move about freely;xx+xn-x:m,yv5lt v m within the material are referred to as

  A negatively charged rod is brought near j a-)9fmt-jrw cx yt6+one end of an uncharged metal bar. The end of the metry)-j- c+x6 ajwf tt9mal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B i6(lv5gmezs,.nzm( oj1 tprcii bu; 5,s neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whicisiu 5 ,(oz5m r.l6t1e;z jbv,mpng( ch statement is correct?

  How can a negatively charged rod charge an electroscope positively?a+ w;uhka 4v8t

  An originally neutral electroscope is briefly touched with a positively cx3r7d3cqix j /eurf2 2harged glass rod. Ther3fx/qcjx7 d 32ruei2 electroscope

  An originally neutral electroscope is grou2 7z :dsys*,fs dm7kmmnded briefly while a positively charged glass rod is held near s 77mk2zms:mysfd,d* it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and g0jwi3w t-(gw: rj7wj the leaves separate. Then a negative object is brought near the electroscope, but does not touch it.0 w jtrj3wj7ww-(g gi: What happens to the leaves?

  A large negatively chay 5eo-pz9rv-nrged object is placed on an insulated table. 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 not touch the negative object. At no time does either ball touch the negativyp5-r z-9novee object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb cons+ x4ya*j 495 s;ma.hbrzunxy/8ys nwetant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance s wlx q0)2sj3ga5v)td d. The first charge is larger in magnitude than the 2 dw)0sxqj3tgs al 5v)second charge.

  Sphere A carries a net charge and sphere B is neutral. They are6oofd: l( hq 10x0vvab placed near each other on an insulated table. Which 6:ov1l0h a( 0fvxbqo dstatement best describes the electrostatic force between them?

  Two charged objects attract each other with a ce;rp2 5m6yik 57hvp ebgrtain force. If the charges on both object26egir y5v; b 57hppmks are doubled with no change in separation, the force between them

  Two charges are sepa3sx izbjd (/4fe29nwb rated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mxsbbed42z9f nw j(/i 3utual forces?

  Two charged objects attract each other with a force F. Wha9qs- bq/svn7 54qd:j)ojz oe ht happens to the force between them /hve sq9q-zo :obj5)j4s n q7dif one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are 7pdo- r )j9q;4tdf. l1 xyihzfseparated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to thxrlf9fp4j;di-d o. 7yq 1t)zhe first electron?

  An electron and a proton are separated by a distanc un)e ly6 z99h;mc,xuqe of 1.0 m. What happens to the magnitude of the force on tuy c hqzn,el96)x;mu9he first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distavnd tl0n3l t96nce of 1.0 m. What happens to the size of the force on the proton if the electron is movedn ln dv36l09tt 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of abd3qtx4x; :ng square. 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, identical charges of -Q are placed at the other three corners of the square. What is the magnitude of the net electrostatic force acting on :bgxq x4;n3d tthe positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle.sf4f8- rmikd: When a k8 ri4mf:sdf -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 due to a third charge of +Q placed at one of the other vertices?

  Which of the followiq)t t(jsd:c*h; pfg,nng is not a vector?

  At twice the distance from a point charge, the strength of the electric fie5, mmlx-1tkycvw7*vq:z b pq(ld

  Is it possible to have a zero electric field value between a negp7 1asp-l*kir/s6/d3gq hry e eb- 1dxative and positive charge along the line joining the terdpa3- hi r-yp/bg7s k/lx q1d*se16wo charges?

  Is it possible to have a zero electric fie+b wwfr41 d;acld value between two positive charges along the l1+fcwd; b4rwa ine joining the two charges?

  Electric field lines near+:si ;tbu7vdn psitive point charges

  The electric field shof1 3wugbs(k1l +hu )pi7 ur6yjwn

  Can electric field lines interydvualut 0ver 3p45t7y3 uu:9c .t+r isect in free space?

  A solid block of metal in electrostatic r:be /(+bu nvgequilibrium is placed in a uniform electric field. Give a statement concerning the electrinv+r(g b:beu /c field in the block's interior.

  If a solid metal sphere and a hui2yxji/0z-w* clg z/ollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway betlgz/j/iu xc2*- wiyz 0ween the center and the surface is

  A cubic block of aluminum rests on a rxay/-vk(/ qm wooden table in a region where a uniform electric field is directed straight upward. akrm(xv/y - q/What can be said concerning the charge on the block's top surface?

  If a conductor is in electrost+gooxtlmfco5 ga:h)a 9l(p y(;jw 9 3bvcj6,datic equilibrium near an electric charge

  A positive point charge is enclosed ikj:3ty( 4egvbn a hollow metallic sphere that is grounded. As compared to the case without the hollg(ytj4:bev k 3ow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors inbbfm(. 7 * d:xtilqys, static equilibrium.

State Gauss's law.

  The charge carried by one elp :ze:7ruwv. mectron 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 chta re;2 8mbkm)h8ml kw a/6la5arge of +2.00 mC. How many more protons than electrons / 2 5rkm8a6e8 lblhmwmt;aka)does this piece of plastic have?

  What is the charge on 1 kg ofqjb-(mp+5* 6gvhk2x 6yudh p)czo9n g protons?

  An atomic nucleus has a char 0fgnrj4.n rj)h.o(c age 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, 9 8yteidrq(+arespectively. 9qd+riy8a (te What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge2sp94uq;h*i; gqduj d , and the force between them is 1.0 N. What is dd;*92uqu p;isghq4jthe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Ho(; d vls+jz (kthtzu+y6k*:lj w far apart are they?

  The force between a lav+dtra. 5qws: + ba:$30 \; mC$ 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 b2 lx9s+ t8tpntql1qy fu4-5r force. If they are moved 8fqnu -p5xl1t2tsr ql t+9b4y to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC(* wjcq cj5-pumpt 7id.*ie,g 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. What are the magnitude and directi-*c p 7q,dmjeic *t pwu.ig(j5on of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2ok).f1.tbo.vafu ra j/i* 0po.0 mC is placed at ot aro i1v)./0.pf*a.joubfkthe 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 at the origin?

  Three point charges are located at the followvm7 7,kybt/qu q9dt xhq /9ca)ing 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 dxc7v7b/q)thk9mq yu, /taq9the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second poinv8k 5wlv81by tt charge of -Q is placed at the uwty58 b18kv lvpper-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 placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC c 5jjq*ihowegj i r 7 3d)f6s2u.4-prdis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the mahsdrde46)j 7jqc rgjfpi-. 2u*o 53iwgnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m,s *- x,(oydejuak):l u 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 n ue) -a*ouyds,:jlk(xC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilatc3k7b*dwc:ei eral triangle which measures 30 cm on a side. cc*wbi3e :kd7What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, b92ft,o 0 ,zay1u6ex9m a oovcwhich 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 thef 6xmc,ye at 2oo90bo av1zu,9 electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a )rqk bx .j:u8f+9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net .jf ):8quxkrb force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where c +9lp/kgtwl 3lan a third positive charge +q be placed so that the force on i kll/ 3p+lw9tgt is zero?

  A copper penny has a mass of 3.0 g.u,k y(su8o(kcnjpg /9 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 of a f;m0uuhtm xx5 l8zrg3 )ixed proton some distance abxgm3 zrutu;ml x8) 05hove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduc8tx et jl1)vk+5efom;5p0kux ting threads which are 30 cm long. Bex0 5lu1pfkojt t+; )xkev8m5oth are given identical charges, and the 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 charge of +40e. What is the magnitude of the elklfr 6vgph/g6 8t 0;ww5hs4blectric field at a distance of 1.068b;krv wplh 5hgsltf/ wg64 0 m from the nucleus?

  What are the magnitude and direct ))lg jxg :t51qc0p q0w*xjuihion of the electric field at a distance of 1.50 m from a 50.0-nC chargqxu: x*tip15 c )0gjhwl0 jq)ge?

  A 5.0-C charge is 10 m from a small te2 :mx)bnr gey9st charge. What is the magnitude of the electric field a 2bg:yr 9nx)emt the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What iylg7-6 hupij*s the direction of the elect7l6*y hp-gj iuric field?

  A 5.0-C charge is 10 m from a smrgcrn svt5au ( t(1 jxs*4:,hhall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test char r1 ttr5s:( 4jxan(,hhusv*cgge?

  Two point charges each have a value of 3.0 C a)btb*r nh 1nw xko a.a20te:4ynd are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charg21y 4a*:b tt bxrkheaw.on)n0es?

  A 5.0-mC charge is placed at the 0 cm mark o as.v jhnt/q:9f a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at t snt:9.va jq/hhe 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4n1mq(wmy1zyoddm kj+l d644).0 mC charge is placed at the 50 cm mark. At what point on a liom y+q4z4kjyd dnmlm w6)(11d ne 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 a**kgj poog g45wb,p6x1fr,h,b q h jq(nd x = 0.20 m. What is the f 6b,hogqk,x 4o(*g1qh *wgb,5j r jppmagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cornerey- 4tau w/tt3s of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find 4- ut yte/twa3the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed atp41(am. w e-ozads k(c the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the squar cmwa1(e(a-dsk po4z. e's center?

  A force of 10 N acts on a charge of r3/i9 iekd 3qy5.0 mC when it is placed in a uniform electric field. What is the magnit933eikqiry/ d ude of this electric field?

  A particle with a charge of 4l;l* cn*r0 xnx5 l;l;t*zxscu7nokg 1.0 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 8optf ;ri6p ))ofp sr:mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?ppr;8 fo:s6 tp)rfo) i

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plas+pewau(z-nnv;y 8+ l ced inside a uniform electric field, and iw+nn-s eyup;z+(la8 vs suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carriesi,le zww1w v t1poy8h.b5/6rb a charge of +2.0 mC. What is the magnitude of the electric field 5/iy1 5v6b orw8.hbpz1,w ewl t.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carrie( 4sonw 5x/bbas a charge of 3.0 mC. What is the electric field 6.0 cm from 5xsa/bw(4o b nthe center of the sphere?