State the law of conservation of electriw 7phafe2p 6g/c charge.

  Is it possible for two negativ;0-yl28qe d zic iw0iae charges to attract each other?

  Is it possible for a positive and a negative charge to attract each otherpsfbagzp4g ae++a;r r2 d;(j2x e.g0x ;qtc6s?

  A glass rod is rubbed with a piece of silk. During the proce rmzd9(j uqlr3)d t2oyp8.hk3ss the glass rod acquir.p3dhl )o m 9zdu 3yk2(rt8qjres a positive charge and the silk

  A proton carries a

  The model of the atom/7h,.m t5sd 867z ifwoanx zor*ubjy4 shows a

  A neutral atom always h. trwols4 8l.nas

  An atom has more electrons than protons. The atom 5np/b kg( zi3 6xe) fmrx4ueh/cp i,7xhf ur-1is

  Materials in which the electrons are bound very tightly to the nuclei are refer 1o/vwhnoy9: dred to as:wn 9hoyo/d 1v

  Materials in which the electrons are bound very loosely to the nuu nf,zxicnbb.tw);m2oc9mv y , 57xq4clei and can move about freely within the m),9t .zfbm, bnyncxm2iocq wuv74 x5; aterial are referred to as

  A negatively charged roddk8:k.j9 mj3yahijbaml(m, 1 is brought near one end of an uncharged metal bar. The end of the metal bar farthest from theyj(9 d. a8:hk1,lmkjjmaim 3b charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. y +yq 0dpsc3s6They are placed near each other on an insulated table. Sphere B is briefly touche3q dc6 sp+0yysd with a wire that is grounded. Which statement is correct?

  How can a negatively charge xqio(01uojs9+xz uo 5d rod charge an electroscope positively?

  An originally neutral el):b xbbjuw 2p7ectroscope is briefly touched with a positively charged glassb7jb)u2xb w: p rod. The electroscope

  An originally neutral electroscope is grovuxc)u :)ytw*ph(h;e wsj 3e3unded briefly while a positively charged glass rod is held near it. After the glass rod is ewu uh*)yj: t(h v)3;cpexw3sremoved, the electroscope

  A positive object touches a ne7 krflqc2)eif d 1.r)wutral electroscope, and the leaves separate. Then a negative objeqcdr7ik.2 e) 1f)l rfwct is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on wshvc0**iz-mx z i30ean 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 negative object. What iscem*wzvh0 i0*3 iz-xs the final charge on each ball?

  Charge is

  What are the units of the Coulombpzkt 9h97/ ,nck1srvf constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lu ca/urj1h*:n:s 4pszt,pn ;karger in magnitude than the second chanjz s;tuup,/rs:4ch*: 1a p knrge.

  Sphere A carries a net charge and sphere B is neutral. T1vuy7,hj1 a oehey are placed near each other on an insulated table. Which statement best describes the el17ahey1u,vo j ectrostatic force between them?

  Two charged objects attract each other with a certain force. If the cha/ia1hd-; 5b)uhk9p3yo,e jfrtw0/hldh q9 ccrges on both objects are doubledcrhdh51;cphh 3-qljutf9 9k/wo ,y ai0b)/ed with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive for10a xnw8itpk0 ces of F on each other. If the charges are separated by a distance of d/3,axwnp 8k 010it what are the new mutual forces?

  Two charged objects attract each other with a force F.rnh -13n.o1alrdw; p v What happens to the force between them if 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 torwap.r1o 3;nd1ln v-h

  An electron and a proton are separated by a distance of 1.0 m. What qn( :p( s 60 wo6p.uusymsejh0happens to the (: np0u0sswoypj( 6m q s.e6humagnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are se43 on ,r1: ox1nepv:uu(j; s k,pvpbxoparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if abjrsoo4nv p1 (x,e :n;3p1uxk u,o :pv second electron is placed next to the proton?

  An electron and a proton are separated bui ewx.b v4v.v+2xhy0y a distance 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 thexv vw+4vu.b.h0e2yix proton?

  A point charge of +Q is placed at the cb 3-3oenbtnr*g17 bz nenter of a square. When a second point charge of -Q is placed at one ofgnoe1zbrt3nn7- b*3 b 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 of the square?

  A point charge of +Q is placed at the centroid of an equilateral trianglo5 .vou)9gm5cxhz 3.+btjlhk e. When a second charge of +Q is placed at one of the triangz5+b 3.j)ktm5hoxh9g.uo l vc le'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 followingwq/ psy*s: -me is not a vector?

  At twice the distance from a pointzcwvi e3t*pv1 3;3qyv charge, the strength of the electric field

  Is it possible to have a zero electric field value bep4nyvk3+;qudhzb* i. 86 - .kp fkahmstween a negative and positive chargfbp;a. q zhk ph4d v s-kk6n8imy*3u.+e along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive charge yq9b 2p8qqa;u68euu rs along the line joining the twoqb8 ryea2pq u9qu8 ;u6 charges?

  Electric field lines neanumx(nt yq(,/r psitive point charges

  The electric field s/ w0*ghh luuqg )xg1m6hown

  Can electric field lines intersect in f+nfk: j. 8d/bdnh fa3free space?

  A solid block of metal in electrostatimlh8d4-tnsxr 5:: 2tet fena)c equilibrium is placed in a uniform electric field. Give a statement concerning the electric field int2t:rtn- fn) he s:l mx4ed5a8 the block's interior.

  If a solid metal sphere and a p/c,gz kv l) o(je,4xuhollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the centerzxo ce, ,kj()g4 vupl/ and the surface is

  A cubic block of aluminum rests on a wooden table in a regetru6s 5pv7z:s zi++. .erjz*gzb4x dion where a uniform electric field is directed straight upward. Wh+j5 p.v4 7zs* d.+zrs: bezzxgui 6terat can be said concerning the charge on the block's top surface?

  If a conductor is in eloa jr-4)6lot(2l6c tlelxp59vv u( hwectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere ::3emi;*nam p) :zf ze,onz kjthat is grounded. As compared to the case without the hollow sphere, the electric field at a pointfone:mazmij z: p,*3e n: )zk; directly above the hollow sphere has

State three properties of conductors in s y-(5dytzq,m y9+;mqy lc7slgtatic equilibrium.

State Gauss's law.

  The charge carried by onem0th(tqv) ) iblq )uj/ 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 many more,nn-v4 v esigs gu)7 t.alyc/o/b2uf9 protons than electrons doec4/,uvnyi -g/v t 9l)ass2un ofeb7g.s this piece of plastic have?

  What is the charge on 1 p pw8vjvm )j2+kg of protons?

  An atomic nucleus has a+,vn8givd59 .u 6l76.qmhnypooykav 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 2.0 and -4.0 e5mq i .i)tlc5nxx:bif4 5o0 amC, respectively. Wh 5 fiamx5ci) .bq e5t0:onx4liat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is+jvs5uq ( xxt,:by7 oy 1.0 N. What is the magnitude of the second ch u+o,xq(tyyj75 v:s bxarge?

  Two 1.0-C charges have a force between them of 1.0 N. Hz *. +t9qzr6en8scq mhow far apart are they?

  The force between a z0d(b0mj hwo 2c6t 0pav;n6pn$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, b+-l3cupe.t yexperience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric forcp. tye+ ub-3lce between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. fboai ,l2(a355 -e dswl3kgrw1rwwnw 3ph/6f The first charge is at the origin, the second to the righ3rl3kwa5-,w/ 5fswa hb6 wf2(1 wnrplidog3et 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 placed on the x-axiswunygyr+cs ;h7146g h ui w,v3. 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 elec ywy6 igwu; 7uchshnr14 v3+,gtrostatic force which acts on the charge at the origin?

  Three point charges are located atys3i0,n9vhy x 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 magnitude of the fo s,39iv0xnyh yrce on the 3.00-mC charge?

  A point charge of +Q is placed at the do*edb.zp +fzg*7b5k cq6 0facenter of a square, and a 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 placed at the lower-lefekgqb zb 70cza6 pf*5+* dodf.t corner?

  Q1 = 6.0 nC is at (0.30 m, 0)mwmrohn rx95u3 ja(p-1kkc8, ; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of c8-okrx(mahrw9,3u 5mjkp1 n the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.3e,sp8 pla+ v/m0 m, 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 nC charge?, vpsl ap8/e+m

  Three identical charges of 3.0 mC are placed at the vertices 4x+-a 8 5my tj3zo)vgk lldr65y)qtfdof an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic k 6v-x4 ) 8)at5zd +jlfm5lq3rgydtyo force which acts on any one of the charges?

  Consider point charges of +Q and +4r.+p.4ji s9 8ledow: okou5zqQ, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possibl: 8ooe+w9r u..5zsk4jp lidoq e 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 is at x = 4.0 mls4bzh, obk 9rj.5ic/ . Where on the x-axis can izsk/49b .ochr j5l,b a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2al0 piuyb ( k*tr5abt 9g6x+npwa6t(r(. Where can a third pbxbap g*intr wau0( l6(6(y+rp 5k9ttositive charge +q be placed so that the force on it is zero?

  A copper penny has a mass arb3q;lf j6bk f m1n3*of 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 against the force of gravhx3;pumjy j )/ity by the attraction of a fixed proton some distance above it. How far above the ej;h x j)3y/umplectron is the proton?

  Two 0.20-g metal spheres are hung from det kz+ +.b6,5lcb0+jdl1ckiu fv /bna common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart unt /50 kzclb6 jbt+++vcbkddueni.f1l, il 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 ov9j v*hspd j5 hww92)the magnitude of the electric field at a distance of 1.09 h pdovj*hs2vj5w w)9 m from the nucleus?

  What are the magnitude and direction of the electri hd(l+vcz52 ma2 ry7a e-jm7kjc field at a distance of 1.50 m from a 50.0-nC charge? lyv7cm rdj22a( a+h k57-mejz

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ofee) rxhs:;r;uccrq)5 the electric field at the location of thcx curq5rs ;:)e)h;ere test charge?

  A 5.0-C charge is 10 m from a small test charge. What is gs,ev6u bwr(1 the direction of the electric fi1r bw,6s( ugveeld?

  A 5.0-C charge is 10 m from aek (wi97g+vg;3p xin q small test charge. What is the magnitude of the force experienced by a 1.0 nC cwvk(3iipq+gg x n7e;9harge placed at the location of the test charge?

  Two point charges each have a value *jxmj artb 5l-s; qt,gf/m1v5of 3.0 C and are separated by a distance of 4.0 m. What ibfj/ g q j1smt5m;x5,*tl-ravs the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mare 1fs.1gnpk 0 pm2gdq.k of a meter stick and a -4.0 mC charge is placed q1emgd fg np10p.sk.2at the 50 cm mark. What is the 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 mCumxv-,eh,5h3dil zbl8:4 xxm charge is placed at the 50 cm mark. At what point on a line joining the two charge ,m-xhmvbe 4iz8l xx3 lud:h,5s is the electric field zero?

  Two point charges of +3.0 mC anaj inp7yo9mqf7;6 ;tjd -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of 7ojqp6ajyn7 m;;tf i9the electric field at the point midway between them?

  Three 3.0 mC charges are wd cb8 bkee)uk +.i.g7at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. eb.iwdb+gk eu 8 ).c7k Find the electric field at the center of the square.

  Consider a square which iess npshbic5w16bo597 g q b+-s 1.0 m on a side. Charges are 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 mC76hcibg b+b-wqs s9n1eps5 o5 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 when it is placed in a un7j+jz1g dhf0 (f qty -foy9r6uiform electric field. What is qfjz (6g 09oft dfy1 jry+7uh-the magnitude of this electric field?

  A particle with a charge o3 ;2gobh41 47ifd9 pznfeh3r eydg/g hf 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 en:;j e-r/bziqvs4wl8.g(5c * gh cya an electric field of 6000 N/C pointing down.*w4gehlvizq:sy8 j -n gce5a rb( /;cward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.1502iq, cr e tye 4wv.w6yh72gze1 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direc6 rvyww ,gceqhi4ze 2 et1y.72tion of the electric field?

  A metal sphere of radius 10 cm carries a chary)cr w-3q v-zdge of +2.0 mC. What is the magnitude of the electric f-yd3rqwzc) v- ield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. c;l nn 7zih94uyh(b0-(pi xrjWhat is the electric field 6.0 cm from thjriyl4 x 9nhhpz ;0nbu((-7i ce center of the sphere?