State the law of conservation o ami9)82fnj tam.fbo:dlo7jb5 :u/ maf electric charge.

  Is it possible for two negativu7 b2gsb:o1,xlzv om:n7;+tq 9:)zf jeldz vxe charges to attract each other?

  Is it possible for a positive and a negative charge to attract each x:n4ol 3*7 q k.u tzzhae7kay0other?

  A glass rod is rubbed with a piece of silk. During the*:0 yijowto kt0h*sk: process the glass rod acquires a positive charge and the0t kjito*0 sh:o*w k:y silk

  A proton carries a

  The model of the aton b0v)jt2 ei8v(9 d-.mbyilpk m shows a

  A neutral atom always c jgq01 ; zf.lt,ed5fahas

  An atom has more electrons wj ksd(i)+)z,:p/qek(oi dmt than protons. The atom is

  Materials in which the electrons are bound very tightly to tz r /3ea7,xptkhe nuclei are referred to aspexr 7za/3 k,t

  Materials in which the electrons are bound very o v,,55f fuvgb;ym: joloosely to the nuclei and can move about freely within the materio,b v;g,ffmy juo:v55 al are referred to as

  A negatively charged rod is brought near one end of a 0nz.uaa/x 4xhn uncharged metal bar. The end of zxua/0n4.xah the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive rq 9q 3lcldwozfl /:*/charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whwz9l/d/lfc3 *:o q qlrich statement is correct?

  How can a negatively charged rod chy6 fsavtyp/i4+ jbaec. xr.1:arge an electroscope positively?

  An originally neutral electroscope is briefly touched with a p9koaktru2( h/ ositively charged glass rod. 2a 9(kh rou/kt The electroscope

  An originally neutral electroscope is gr+;tt*ggy my )dj 1 3xhopavr66ounded briefly while a positively charged glass rod is held near it. After the glass rod is removed,mdovh 6ya)y1gj6+g3r p*tt x; the electroscope

  A positive object touch+bjksc.ozu1x yt3(fq/ jpaj w1+*yn8es a neutral electroscope, and the leaves separate. Then a negative object is brought near the e .a*1 nbfz/tqjcojp+y+k8ys( wj x3u1lectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an intrho1 0u (cbw ,z8gug6sulated table. A neutral metallic ball rocu ouwbrgh8, 16tz g(0lls 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 is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constaz8y*i;1kyk h,e xww m8vj7o 3knt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lar)nazf7-+e.u5j(aebe *x7vm-rq skt iger in mx--fs k7uiaj(te vb* ra5 e7m z)qe+n.agnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed neaskcv+nb 0ze,c3vb 2 f.je o/lzx.q3.ir each other on an insulated table. Which statement best describes the electrostatic for. ofx+v zbsj 3bq2/e3c.v l0e izn.c,kce between them?

  Two charged objects attract each other with a cer+up.l 2lq 79y0nq hwux(jhu;wtain force. If the charges on both objects are doubled with no change in sew(p 7hy9whu jqu+; .qn2l 0uxlparation, the force between them

  Two charges are separated by a distance d and e8 t 9r(,ysrxqhxert mutual attractive forces of F on each other. If the charges(rsq tr,8 yxh9 are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other +++fr+iecs xxsr-n: r : sxf9cwith a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the sepacx - +rcsr9si:xff:++x rn+esration 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 bym i g qp0c8;bgb)bak0.qwd+9b a distance of 1.0 m. What happens to the magnitude of the force bbbq+aqdg0)pmk b. ;w8gi09con the proton if a second electron is placed next to the first electron?

  An electron and a proton are sep8j gpi 2c;yd,qy;jh; iarated by a distance of 1.0 m. What happens to the magnitude8gi;2cq; yip d ,yhj;j of the force on the first electron if a second electron is placed next to the proton?

  An electron and a protons sh,qz 6qx-n x) 1;4wurz20k3 9uqyii*ervvd are separated by a distance of 1.0 m. What happens to the size of the uy6x i3d e2wr xs; v)h9z1i,4 s*-un q0qzqkrvforce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. Wheh3ik4hodh o h,j9:ur2cxai -3n a second point charge of -Q is placed at one of the square's corners, it is observed that an elrk3 , 2ajhou-i9i: h xch34ohdectrostatic 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 trieg+ ,w/5l8zkvt0twyutd ;7dd angle. When a second charge of +Q is placed at one of the triand8gw/e,t tvd dy+;5z 0tk7 ulwgle'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 ;b vf*cgm;r*o is not a vector?

  At twice the distance fro u ts)ryki)85 si:c :gx9rr9bnm a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negapvt:4l 5ra/mmue z m52tive and positivem4e/alzp55:mr um t2 v charge along the line joining the two charges?

  Is it possible to have a zero electric field value betwink r *q-5sqk/een two positive charges along the line joining the two chargeqqk*k5ni s/ r-s?

  Electric field lines near psitive point okzj8ov .(9spnq81 lvcharges

  The electric field shownjn c(zce jr;srj xu,-iv5 d(d8(y(ze asqf:)4

  Can electric field lines intersect in+c kcgqa/fn8 u4e v/6qdbga0( free space?

  A solid block of metal in ele6 fc(uv 2fyow3ctrostatic equilibrium is placed in a uniform electric field. Give a statement concerningyofwu2(3 cf6v the electric field in the block's interior.

  If a solid metal sphere and a hollow met k/( 3 ptq944:wizenz2n0.mobpk wlh aal sphere of equal diameters are each given the same charge, the electric field (E) midway between the ce /k0i e4lp4k9o:abh2 qwz3.wzm(tnpn nter and the surface is

  A cubic block of aluminum rests on a wooden table isex6r0bth+ y 7n a region where a uniform electric field is directed straight upward. What can be said concesty 6xrb+7h0 erning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chv:;tlqjf6 3cr arge

  A positive point charge is enclosed in a hollow metallic sphere +ljgww. ) mroysqlvkh o0e/(+*n zz85that is grounded. As compared to the case without the hollow sphere, the electric field at a pje5l+ +z* 8o0q.k ws )z(h/nogylw rvmoint directly above the hollow sphere has

State three properties of conductors in static/-fsvw t f.0xa 7+ vz3itpzh,e equilibrium.

State Gauss's law.

  The charge carried by one e yht:imu 5y / )uh(hodz7zkfmgn-7k/( lectron 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 mkv- dkb5 pmn,pmt) c61C. How many more protons than electrons does this piece of plastic 5pd nmmtp1k6 -v),c kbhave?

  What is the charge on 1 kg of proff5 +q,fu p0dqtons?

  An atomic nucleus has a charge ofiz7bv9p emg07zl, : qokg3(ii $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 br2z c4b(,o* bv6puqmcm, have charge values of 2.0 and -4.0 mC, re*4,o bbvu6 pzm2qb(crspectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forcev s8zxw6 hy jwzep756+ between them is 1.0 N. What is the magnitude of the second cha6ezz8h7x 6s+w y5jwv prge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are tevh qgv )ce-.v8;0ddrx cy(,ehey?

  The force between a ev tgohw00.4ry w 5h2y$30 \; mC$ 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 / hr50hk+gshhi(v cwq *+v k)aforce. If they are moved to a new separation of 8.0 cm, what w(gh5+v0)i* aqckhrh svk /h +is the electric force between them?

  Three identical point charges of 2.0 mC are placed on )37te-lhxmnq fa28jhmqv -9y the x-axis. The first charge is at the origin, the second to the right at h)exm3aq-tl - 8yf q7n2vj9mhx = 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-axis. A charge of dr t6/m .rgq5n+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 directinqr/5 6gr dtm.on of the electrostatic force which acts on the charge at the origin?

  Three point charges s.g,*z.pv8qd w c hrq*are located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2wv *qhrz.c8q,g*ds. p = 3.00 mC at x = 0; Q3 = -5.00 mC 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. y8f . z;btdt8nwv5ib a second point charge iyvn8df.85wtt bz ;b.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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 mbpl. /u r7es6e); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 ne pl7 6b.eur/sC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 mrs+h* *-*h vslrc )ybb); Q3 = 5.0 nC is at (0, 0). What is the direction of the - h*ysb*+bcrls)*hr v net force on the 5.0 nC charge?

  Three identical charg q uqhtxy7(+;-euvz5e es 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 f zxe; q-7h5 eu+yquv(torce which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separatedc.(nj comk 9, cc/7oks by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q susjmo,9c7.(n /cck cko ch that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at :gqo,b(/vlknqr *vi)u0d ww-the origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on i)qlb,* invwvk u: g0w-oqd/r (t is zero?

  Charge +2q is placed at the origin and charge69a9fgr s,*p3 uv 5mnp a1/u5if gyvnu -q is placed at x = 2a. Where can a third positive c vu6gp,av* f g9rnun9i au15m5s/pfy3 harge +q be placed so that the force on it is zero?

  A copper penny has a mass ohi45(mp;4 j fh:gasc/uh v i,cf 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 gra4hcd ,2n55 v +wlt sv s6l1dfzj-tjbf1vity by the attraction of a fixed proton some distance above it. How far above the electro6bhzw2 ,l 5t-tfvj 1j+4sldd 5sn vfc1n is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threadsgp42o ;ptm5s 2kbnvz 0 which are 30 cm long. Both are given identical charges, and the electrostatic repulsion fon4tz 2kgbs;5 mv 2pp0orces 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 i8ji1d e/s s89 +wytrops the magnitude of the electric field at a distance of 1.0 m from the8 +8s/eo t syji1d9rwp nucleus?

  What are the magnitude and direction of the electric field at a distance ofun3xetu+s6+kd (mbx / 1.50 m from a 50.0-nCn+d btekuxx3 6s(/u m+ charge?

  A 5.0-C charge is 10 m from a small : u6pw3k yb,4:hpucbi test charge. What is the magnitude of the electric field at the location ofyu pk,u 34h 6ib:bcw:p the test charge?

  A 5.0-C charge is 10 m from a small test charetz sa;vb )f.ib:-1ctge. What is the direction of the electr;t1isb)v a.ec- : tfzbic field?

  A 5.0-C charge is 10 m from a small test charge. What is the msily12 avq2-o u ye,r:y ,mv:gagnitude of the force experienced by a 1.0 nC charge placed at the location of the test v :as,2yiov lu-:,egyyr2qm1charge?

  Two point charges each have a value of 3.0 C and arx- u77pba+ g: wp zgdku2m8 wxu -k,k1tr7sex:e separated by a distance of 4.0 m. What is the electric field at a point midway:mkxzk2gau u1 ,7w bgstx+pe 7x- dp w87-ru:k 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 chargl u t3 mp(4hz7.fcdv/ye is placuyl 3 t.z d/p(4mvfhc7ed at 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 maru ,em5 mxr fjqzlrq3l y-t1am8pqq-kt:03 *(gk 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 chal :m1p-80z*rt u jlay3qq(m,3 -kmqre5gtfqxrges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x v huqnep 8/4o qw,,zsgez1,w* = 0 and x = 0.20 m. What is the magnitude of the wohz /g1 *u4p,,,qv8snzew qe electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of siuge n5vj0y9 .k58zx3y ojsq h+de 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the ele5jz jh y3s0g q9nyexu+58ok .vctric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the 3boh )70g lczjv,t:v qcorners of t:,3t7o)cl j qbhgv0vz he 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 square's center?

  A force of 10 N acts on a 1r(ks o2 ph0chn akjl,teac uy(-1a;)charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric n,1ct o u-kaah)rjsy( a ekl (102h;pcfield?

  A particle with a charge of 4.v6scl fkv6wk q fn3w piu56/240 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 e1)2xk: z2whqykvp+h x lectric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspenw h+k: xy h21zpkxqv2)ded?

  A foam ball of mass ts2r:d cld:wu34s e rk 9im83d0 hw1 3wauokb)0.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended ag)iowdk0bcds a:u e3h34dr3 l 9218wu:w tkmsrainst the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10:fdd ( t16 piutsb)287ifaf omy; k9ym cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm fm7fpf btd otm):2d8i6yyf19 ; ka(siurom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 hs g/uiqv+ y+p;yqv56mC. What is the electric field 6.0 cm fiq+;6q+syvhv p/5ygurom the center of the sphere?