State the law of conservation ofln7tw01t)lv* lwk54jvmngf2 electric charge.

  Is it possible for two negative charges to attract eacqswbd:*9ohb/11k xi eqv - gj-h other?

  Is it possible for a positive and a tfu 18ggh671qkw-stw negative charge to attract each other?

  A glass rod is rubbed *f1q+ )0qaqkfdhan;6 noq wj 5wyo*ij*k/dd7with a piece of silk. During the process the glass rod acquires a positive cj*01khq/;q*)kio*q5 fq dw a7jfn d dw +ynao6harge and the silk

  A proton carries a

  The model of the atom shglx/a(c gy(+ hpu/1;n .yyhz kows a

  A neutral atom alwayfr ;82z ydugd9s has

  An atom has more elecyow +:ie1 epo;trons than protons. The atom is

  Materials in which the eler 8j21c(mltggy+b:g/ v,nrcnctrons are bound very tightly to the nuclei are referred to as,jrgnmry:1t 2vlc cgn(b+8g /

  Materials in which the elect-nv) rgk3 oc1orons are bound very loosely to the nuclei and can move about freely within the material are referred to as3nor )vo- 1kgc

  A negatively charged rod is brought near one end5c,c y-0o bh15rianq4 . 1fb*z hfxknp of an uncharged metal bar. The end of the metal bar farthest from the charged rod wilhxnkzf5f * c ho-cb, p 1a.y45inq10brl be charged

  Sphere A carries a net positive charge, and sp sd s4z.(kw0yyctj;,fraex q/)d7s (shere B is neutral. They are placed near each other on an insulated table. Sphes.k a xcqr)w/7z;dsse,jf(40ty ys( dre B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope.;mk21kh lh aj positively?

  An originally neutral electroscope is briefly touched w/pv9 *zixm0kp *bxkj7cr: hp (ith a positively charged glass rod. The electros0p(xrm/ * pc7zjbh kpx9k* vi:cope

  An originally neutral electroscope is grounded briefly while a posityapq 8vxe n5f6d(/nd a.7rip;o* a;mbively charged glass rod is held near it. Afteriqmd enoa6( fyna7;5db8 *p; a/p.vxr the glass rod is removed, the electroscope

  A positive object touches a neutral electrosyo6z1cnt5)0n l:ly fg cope, and the leaves separate. Then a negative object is brought near the electroscope, but does not6o5y:ygzf tc)l 01 nnl touch it. What happens to the leaves?

  A large negatively charged objec l.3 4s 3ly,f1tp37qtlu*tkw5i swa cuc, ia1xt 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 baist13i5 pcu 1w7ty l 3a3qlc,*. alfus,4wktxll touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb consgqkk5 ,09 kvkntant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge iswv/ naag4 bv)8 larger in magnitude tha /8avbva)n4w gn the second charge.

  Sphere A carries a net charge and sphere B is neutral. q ,ydq7w7eq+b9 nmh)d gscls/ 56i7x k They are placed near each other on an5h7qn+6skdyg)ixq d7/ clsme9 ,bq7w insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each otud 2t+rfygqo3 xrulz+/ /4ox,her with a certain force. If the charges on both objects are dot+/4rx goxdl zuf,r oqu23/+yubled with no change in separation, the force between them

  Two charges are separaec,yf(3 uiq eis4 :)yated 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 mutual forc)yesciua3e,:i 4 fy( qes?

  Two charged objects attract each other with a force F. What happens-kjidk7)q ci 57gos 9 0i56ou iqqvgw) to the force between them if one charge is doubliji6q-)ik qd) 5gvos c w0iu9o5qg77ked, 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 separated by-76rn-rs1h5k afgxzz(vn+4j ua0nu h a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second elen x4jurzv671ra 5knshauh 0- zfg-n(+ctron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Whata*5n94,q vxirxncg (a happens to the magnitude of the force on the firs,9x 5ni*4narcqv x a(gt 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 to8j2ho)qze r8vsna2ue-01dm k2x i ad6 the size of the force on the proton if the electron is moved 0.508ar eh2damu- dx0s 2i12qn8vzj )oke6 m closer to the proton?

  A point charge of +Q is pi(juj .rhyu.h n7w9wde k*kf/d 46x3klaced at the center of a 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 electroste6r..jh wji y4nkx9fu k7wdukh3 */ (datic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an u- 4p ktxhs3p +8,tzphequilateral triangle. 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 due to a third charge of +Q p8,x 3 tut-pzkh4pp+hs laced at one of the other vertices?

  Which of the following is no*/mgn :7iw g5hrshg:st a vector?

  At twice the distance from a point charge, the strengthugeew /)fzi g1k.+4o f of the electric field

  Is it possible to have a zero electric field value between ang cj83 ui0h,ei mi96k negative and positive charge along the line joining the j ei0 gukn69 m8ic3,ihtwo charges?

  Is it possible to have a zero electr k+so.8ntgil pi058xcnze. 7tic field value between two positive charges along the line joining the two char5l .8ikxzognt+8 .pne7cs 0itges?

  Electric field lines near psitive thw izjxx.f3:f x8xnv/9p, s9 point charges

  The electric field shown d gzf( :)q8e s8dmrxu(

  Can electric field lines intersect in free(xmkqimrohztp5p)d, )wi q+ 99/ohe/nljr*: space?

  A solid block of metal in electrostatic equilibrium is placed in a (8*6x-ydcct 0, susymx)n2cxo quti 9uniform electric field. Give a statement concerning the electric field in the blocc q(uy0x9 d6mx s-8,*cn2xu yctts)iok's interior.

  If a solid metal sphe7,3m ecok;pz jqe5k9sre and a hollow metal sphere of equal diameters are each given the same charge, the electric field (E93peqe 5 jokz7cs;,m k) midway between the center and the surface is

  A cubic block of aluminum r:k zvmivm5k. (+e wcb2ests on a wooden table in a region where a uniform electric field is directed straight upward. Wha z:b25c immkk(v we.+vt can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrigy w/ gcb.y l0ddwiiqi -hw4q393 x20r 9qgfg+um near an electric charge

  A positive point charge is ex8 ufer 5ow51*y2ozkenclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the 58uowkee* 5yro1 xz2fhollow sphere has

State three properties of conductors in static equilibrivwffi;: +r --nwz2 s7, sijcjlum.

State Gauss's law.

  The charge carried by ony17l. axqbehsi2bj )rp/ )ek 5e electron 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. How ma.eq2uwu+or oc3rl 05 qny more protons than electrons does this piece of plastic have.0 leqc5 uu wro2r3+qo?

  What is the charge on 1 kg of p vbrq34xhe*.) -*xtws-t -x x7ac(pkww gbln0rotons?

  An atomic nucleus has a charge of r qhh*as03 yr/ebur-5,oj lt: $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, havu;a(2 , 6raie/trzuoa+bj 6qxe charge values of 2.0 and -4.0 mC, respectively.aa2t /+qb6 (a6r,r;iz uju exo What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chargmg8m/pi zzvh, tll b5)a5. x(ky9s at0e, and the force between them is 1.0 N. What is the m)a5/z z5 atl.y xhi9(l8tpm0sbkg mv,agnitude of the second charge?

  Two 1.0-C charges have a force between them up9mg:e9eu 4v of 1.0 N. How far apart are they?

  The force between a x pwk 57*7:qyfl/cjge $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, ini dx8yr hnv(.y(n:(knl a-h e3atially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the n -.n8 y xakra(e(vhd(:nh3ly electric force between them?

  Three identical point charges of 2.0 mC are placed opt/ 8iry+cegf ;ofsp()-8)2ef.dtf/ hol rqm n 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 pre /p i;ey+8o hq r-gf 8fm sfct).t/)lf(2odare the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed at zh :.nmn-8bwpthe origin, -2.0 m C to the right at x = 50 nb:.8h wp -nmzcm, 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 following positions: Q1 = 2.00 mC at xe0y.z3fvu bhp:-mb 1q7oi ej6 = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of thf uvbqm1 e3ob6:ye7 h.i p0jz-e force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a s tlfcwtm2349x-7h ujdism m22econd 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 -mwd jmi-sx4t22l c37 2u9fmht Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); 1h5y jb4xak49zu: f bizt5u+qQ2 = -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 the 5.0 nC cfuxbq ya4bhz9j+t 14 :5z5 iukharge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = p lzi qjdg92z*k . v05o92rytl5.0 nC is at (0. ld29p5 2v okqj*iyt0zgz9l r, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical chargesdnebx8.gqzmmqtth-hpo(w59 ; ,05q u of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on anquq,(p-t 0gh8zmm5b h9; wqxndt 5e.oy one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what ps;0 *cb5vtty qoint, on a line between the two charges, would it be possible to place a charge of -Q such that the electt c5*t;b qsvy0rostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at /gk l(cj(-dvkm6yl ;cx = 4.0 m. Where on the x-axisgvm/ ;k-(llc(dj6 yk c can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and cha kmr/ a)w(9guw. kssr:;h c-hht;3oj lhr;ug/rge -q is placed at x = 2a. Where can a third positive charge +q b sjc/.l;k/3g;u (r:taskwr u9m rhhwh) g-h;oe placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total 7lej2zu.jn. eaa0 v/y 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 fia8nlitk5w ioxi k90)d 07te9 exed proton some distance above it. How fan9 t9 wexd)5 0liok7iak8i0ter above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonco/7d32sds ulofnducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between thdlfdo /uss237e 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 elecw1vrjl0n +4 4tnr 1tzntric field at a distance of 1.t nl jn4w1+r4rzn1v t00 m from the nucleus?

  What are the magnitude and direction6by-b7*bgw* n6cy g ;inw1wnr of the electric field at a distance of 1.50 m from a 50.0-nC charge-ngnc16y**i n r;bw6gby7bw w ?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude 33d3fmno)2oa- a fn9l6jos i0k:dovz of the electric field at th2 ldnj)o39 3o o:kfaom3ad0s vizf6n- e location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is tz)6wd7nzn* 8a4zxzmx he direction of the electric fx nzn4xma6*z8dz 7zw)ield?

  A 5.0-C charge is 10 m from a small tes k rg1tx8(epx,.f.c*yrt 8e zxt charge. What is the magnitude of the force experienced c gtx1fx.ypzketx8e.8r (r,*by a 1.0 nC charge placed at the location of the test charge?

  Two point charges eachy7 yak- m(v-ce(s isv0 have a value of 3.0 C and are separated by a distance of 4.0 7-s-((ayk0veyc ms vi m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 )b9 xva);objiuzu* nf0 g.w0d cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What)du0x f) ;i0*ojb.vuzn 9bgwa is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed a+ aae.rtd 6b8qt the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric a8dtqaer b6.+field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 1vbgo3x,zy;e 0.20 m. What is the magnitude of the electric field at t x ;,bz3y1eogvhe point midway between them?

  Three 3.0 mC charges are at the three corners of a sqbdwjvaf k;oxy *:5u46 vw3/asuare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find j6/* fxwovw5:a3 ;akdb 4syuvthe electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges a;2r co ab*a; rpf38:ev0sop oqre placed at 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 fiela:a s2p crovof;o80;3 er *qpbd at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is pl l:3e3lhcq t4laced in a uniform electric field. What is the magnitude of this l 3lq:hl4etc3electric field?

  A particle with a charge oz*0z ;zyxz (jru ic-7 4xe9tgrf 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 6n/rvzm 2ocakq01 f+:nojrgq ;gva:0electric field of 6000 N/C pointing downward. What charge must c;kgm1rro :v0anvg z6 o2afqn :+/0qj be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.0(thisr2 au *s 8j hvqxxgn9w +66;veg30 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. W 9 huswgng8vi x2;*ev+6x 3t6q(arj shhat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carriek(b62f 5ne cgm6hr)og s a charge of +2.0 mC. What is the magnitude of the electric hgf5(kne 6 gb2)mr6oc field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 my2zqr klr6w )2C. What is the electric field 6.0 cm fromqrz l6w2ry) k2 the center of the sphere?