State the law of conservo 5j2 gogz-;0aqb8iaz oa f5k/ation of electric charge.

  Is it possible for two negative p4.l.a0mjbywcharges to attract each other?

  Is it possible for a positive and a negativeh: k (w3ut.-yjy 6c).; a(tzvywzt iqz charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rod tdao0d nh ezcel**zs(kar8t 5x( s+/h:,+jjt acquires a positive charge and the si/t :ds(5cth elahz*nze dkjj (,t * +o+xasr08lk

  A proton carries a

  The model of the atomq qvxos0*7i80u/ijxn shows a

  A neutral atom always2 e 1ti/w638p ew vcl*wf6bqd;wcw4ya has

  An atom has more electrons than protons. The at p9qnx/v:urrg v1r)y: -y6quyom is

  Materials in which the electrons are bound v5/ dxy4tzsn1very tightly to the nuclei are referrn41 x5yvstz/ ded to as

  Materials in which the electrons are bou1-b(zkcr5r tn5d mn0f nd very loosely to the nuclei and can move about freel0n(f5 kmrr b5z1ndt-cy within the material are referred to as

  A negatively charged rod is brought near on ri(:nc7 jrpxttks17 3e end of an uncharged metal bar. The end of the metal bar far7(x73snct jrirp :k 1tthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B i76tbkxy* 3 8sek wa:sas neutral. They are placed near each other on an insulated tkka7w8x 6:syea3*b t sable. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electrosc43ugqnwt4bp2yiu1ji 6o 8,. xm:fvs iope positively?

  An originally neutral electroscope is briefly touched with a poskr2nhm8 3jtr7vwd 7;pu; b/o/h 3rg nmitively charged glass/h/b 27;ntkogm prvjr r;u 3h8d73nmw rod. The electroscope

  An originally neutral electroscope is grounded briefly while b g.(9wzzdlm *le ,ob9a positively charged glass rod is held near it. After the glass rod is removed, the electr9m,d9 lezg(. lzwobb* oscope

  A positive object touches a n,cv9zse(rs4v2 lp5- p13gpkk(m l zoweutral electroscope, and the leaves separate. Then a negative objectr,4z 13 z(9clsspegw(2l5 k-ppomkv v is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tabei4by 9 3cqyam )8ic7apv,te,le. A neutral metallic ball rolls straight toward the object, but stops bm,v 8ci ,qe yac7apt9e34yb i)efore 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 negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb con800ve6 nc h*gr cbp vq*ts1kw5stant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largeeiatz *p ct+ 41s4 omft:hu32cr i:f*as zu2p+tmoie c3ht 44 t1cn magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neut e51inao feql3/ d eexde56m:-3x guu,ral. They are placed near each other on an insulated table. Which st/- x 63eam,d:3xi5denqf el1uo5u gee atement best describes the electrostatic force between them?

  Two charged objects attract eaxo n5,gicaom 6 abhte0)0n*b 6ch other with a certain force. If the charges on both objects are doubled with no change in separation, the fore nogac6bibo*h 5)0,mt0anx 6 ce between them

  Two charges are separated by a distance d and exerttkef-umft78dq0 t,hx id 8f9 quj8 a0no:9:xv mutual attractive forces of F on each other. If the 08 tktd 8n9x ff -:7da j8ixuqf9,tv: hoeu0mqcharges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects c:h72:e qs xw:-qq:c z 8kcbunattract each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and th:sbc 7 :qqk:8uw2q ezx :ncc-he 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 0bw/:lga+16b+wr h y5xrktd l separated by a distance of 1.0 m. What happens to the mag+ xr1r/w t0 gwldy5b alh+:6kbnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton a :*dw6 )zi:uh2amyjeire separated by a distance of 1.0 m. What happens to the magn*iz2ye :) m6iadwhj:u itude of the force 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 happens to7tykueu306 k67xb yauwk 09hv the size of the force on the proton if the electron is moved 0.50 m ywv0kauu b6 9 67x3ukk07yehtcloser to the proton?

  A point charge of +Q is placed at the center of a square. When a ss9;fg db8hqv:;o/:xj wgxyz9 econd 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 the positive charge at the center oxxvdw: ;/ bf8o9gghzs: yj9q ;f the square?

  A point charge of +Q is placed at the centroid of an equilateral triangl j x3h njjl8i(/;.v- vvvuphf-e. When a second charge of +Q is placed at one of t jn;jhf3 uvvx8(hvj-p /v-l.ihe 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 vectsj:h 6r i1(xvcu; zot0or?

  At twice the distance from a point charge, )-vz hk+(6fy2bs to k;nu*,ayiyzj0 ithe strength of the electric field

  Is it possible to have a zero electric field vm2:ijac+i8j34j,uvlx7job)zk qt6 x alue between a negative and positive charge along the line joiningxx2m) tqj :bcj+zviui oj3,4 8lk6 ja7 the two charges?

  Is it possible to have a zero electric field value between tw/u3jb8 bx3 o6xtw8c.g i-zvxc o positive charges alo3bcu gjxwo-x8 i3tb.vz/ 86xcng the line joining the two charges?

  Electric field lines near psiti)hozv d6:u8q0mudvv 3ve point charges

  The electric field shv:39+n9e+59find *cu z nm - y*epcymw6wzfkwown

  Can electric field lines intersect in freei6(o/h/xc m am space?

  A solid block of metal in electrostatic equilu.1qehcbshf:/o p50 yibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's intec1 oh yh:qb.f0 u5pes/rior.

  If a solid metal sphere and a hollow metal spherszht.(ud q7iqfcb5y 0ay97/keua 1-ye of equal diameters are each given the same charge, the electric field (E) midway uyb0 tz7-aasf.5y 7/u(dqck9h1eiyq between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regiq tq3ydq1((/bb5nftd on where a uniform electric field is directed t fqq35ydbn1(dt(/bq straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilib+1qx 1ize+iut rium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere thap96)fj kl .hbbt is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere bj p.l6kh9b)f has

State three properties of conduc+pepm mik y*hp-,,r 8ktors in static equilibrium.

State Gauss's law.

  The charge carried by one elenryd;i4ql pytxj1 vbz95/ ;np(4h7jb ctron 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 s /7g:p+i0+p2ydl d,sich d fqcharge of +2.00 mC. How many more protons than electrons does this pi d+yqshd7p/0 s,p2fcdi+ gl:iece of plastic have?

  What is the charge on 1 kg ofpw,v t :9ztf i*b,)hmw protons?

  An atomic nucleus has a chardj:g041sxge 3y 6 nypkge 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 -4.0s(+6aviaxlz , mC, respectively. What is thvazl 6,x+i(s ae magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betwee .blstxf/2u w2 z(itdk+nd);h n them is 1.0 N. What is thi;whd udlxfk.+2sn) z t(tb2/e magnitude of the second charge?

  Two 1.0-C charges have a force betweenkog.t ff*m3p. them of 1.0 N. How far apart are they?

  The force between a iz9.mq.,eo jhx op-p*$30 \; mC$ 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. (7f2l p,bs+f; gltjg wo.y*l9g)tytf If they are mov .g7)yglj,pyl 2g(*tbl f+ wt9f;so fted to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are4d0fnm.c buah 2faq70 placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and thbu0 fa h42 qfda.70cnme 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 placed on th o: wim(kh-,wte 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 whic:-im(t wwok,h h acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 87hd z(re r5ksmC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.0 shr5(z7dk8 re0 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q isng7d j r:j5+gv x-iuk7 placed at the center of a square, and a second point charge of -Q is placed at the upper-kijj vurxng+5-7d7 : gleft 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); Qqxw5gq ec 7 5z+/od g9+uv1sxw2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on qx1g/ u5+s5ew9zg coq w7dv+x the 5.0 nC charge?

  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 at d3j gz 1y5/ky)5,86ona opgca: atc vujjw8a* (0, 0). Wha8vgaz ya 1a5t3cdjo okajnj8 ,/cg5puy6:) w* t is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an eq3 slnr-*j0y e *+d viia.x.ylquilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force whi *n.yld x3-r+i yvqj.i0e asl*ch acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are ea2 ee b96:c8*jsenxoseparated by 3.0 m. At what point, on a line between te*:2 96j ex aosn8becehe two charges, 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-h;fh s5h , wl;k-d+sqnC charge is at x = 4.0 m. Where on the x-axis can a third charge be plach k s5-shn;q+ l;hfdw,ed so the net force on it is zero?

  Charge +2q is placed at thezkuj0zru,, i6;p ns -e origin and charge -q is placed at x = 2a. Where can a third positis 6p,juez;0k -nzur,ive charge +q be placed so that the force on it is zero?

  A copper penny has a mass v35*w+m sghd r,5yg oqof 3.0 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 agt7t.f 3( zos hlug6w; ftj)boad1.,pzcp4(mkainst the force of gravity by the attraction of a fixed proton some distance above it. How far aozs uc6af..wkdt((hpb jozfm;gtt 1l7,) 3p4 bove the electron is the proton?

  Two 0.20-g metal spheres are hung from avhb 0/wk*0hbk common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the thrk bw *v/hbh0k0eads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnitude oyg gt82(cosovr -- *esf the electric field at a distance of 1.0 m from the nucleus?v-yro go-*2g 8 ssec(t

  What are the magnitude and direction of the electric field at a di)jj(l zn)ax04 kioi:l stance of 1.50 m from a 50.04i :ioa lx(zjjl0n k))-nC charge?

  A 5.0-C charge is 10 m from a small test mh;+8jgytkcri1)w 3 telz9 li1;4irgcharge. What is the magnitude of the electric field at the location of the test chkzwt jhlir+mt)ri;4;yeg l11gi 3 8c9arge?

  A 5.0-C charge is 10 m from a small test charge. What i,vi,6f pj8a)4x evoz*i)h4:mjji bj y s the direction of the electriv4jxmjz8 b,viij6hep 4a,:)ij ) oy *fc field?

  A 5.0-C charge is 10 m from a small test charge. Wham( j1 zz.tf2npt is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test ch(j.1zmp z2fntarge?

  Two point charges each have atad4.u :uwg1 xygq(n5 8+z ndm 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?z(+8ud.ag45m1wu gxnnyqd :t

  A 5.0-mC charge is placed at the 0 cm mark offlsh4d2lr)ie xvj(-0 lq6 vl 7 a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is thfxe idlhv7 vq0llj4rs)6 -2(le electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mCfjuc 6h (vs 5ogn72h+a charge is placed at the 50 cm mark. At what point on a li76 sg(a hfcv2 uo5jnh+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 and x29c2gt845kot1kv.bj kaiw pu = 0.20 m. What is the magnitude of the electric field at the point mi 1w.k iub42 ogt2ck5tp kv89jadway between them?

  Three 3.0 mC charges are at the three co2gh dx- y64j)o kxmf;brners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC oybgfk; j24d m)6x -hxcharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are pcjp(a x ek*g/5laced at the corners of the square as follows: +4.0 mC at/a5jc(kx * gep (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 square's center?

  A force of 10 N acts )-xmbxd+ agmir 6 ay ,074fq*wsgvp0l on a charge of 5.0 mC when it is placed in a uniform electric fiexgm ,6lx+af*aq- 7 wrpi) 40gy v0dbmsld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a massc 5ut/-u9nnp o2ql4 rn 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 pl (p bye+p4f +pekw3u7laced in an electric field of 6000 N/C pointing downward. What charge must be placedep7 b w4kup(e +pf3y+l on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball ib2g *uo ew1iw.s placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude*u.eo1g b iww2 and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 m f*iis6f(icz2l(p.gn2)u)ult vb -yy mf,4gwC. What is the magnitude of the electric field 5.0 cm from the,v mwc6 lfgy.ub)2gp i (siy*i4t - nl)(ffz2u sphere's surface?

  A metal sphere of radius 2.0 cm carrix( a7favs 6 5ir45xwt zvz03mees a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the awve4z 5vxatzr xf(5 i6 m7s03sphere?