State the law of conservati )vth a+1mv a6sjcku;0on of electric charge.

  Is it possible for two negative charges to attract eyb,.;i m esy45pc4l muach other?

  Is it possible for a positive and a negative charge to attract each other?ikfc9 xjqr+*x 9 q8x+a

  A glass rod is rubbed with a piece of silk. During the process the glass r,uagwe 78p2 h1 k6hhaqj-os2hod acquires -hhepgkujo6,a h28 271q shwa a positive charge and the silk

  A proton carries a

  The model of the atom shows atptkbm r8+ c ;osw503q

  A neutral atom alway1tfpe -mogkhj .wc.58s has

  An atom has more electrons than protons. oi;jz)36 jvgkh 5l8 j 1n7)dk jnueid; The atom is

  Materials in which the er o*l7e1fhy:8(cvdq hn-6vqnz+9v yklectrons are bound very tightly to the nuclei are referred to *1-dnfvzryc9 hvh7eo:ly+6v knq8q ( as

  Materials in which the electronb/ypm :av(qhb50; ouasc/g tq)7le7s d /zcp+s are bound very loosely to the nuclei and can move about freely wit/( dap 7m bc5pubesvtc7zo;l+) :0 q/shgq/ayhin the material are referred to as

  A negatively charged rod is brought near one end of an 2puiro+5 py9mnve+ 0w uncharged metal bar. The end of the metalupwrnv y09+ 5ep o+2im bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and spher.ii)ku.j su -ahr2i w1e B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touchea .-s hji.u21u)kr iwid with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pg )jrez(okuf b9n6 c03f ef4/positively?

  An originally neutral electroscope is brieflgm b di88-s6gry touched with a positively charged glass rod. Ts6mg r8 gbdi8-he electroscope

  An originally neutral electroscoplb;kujd1 t* 2we is grounded briefly while a positively charged gl klw1 jtb*u;2dass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, a,myr6)hsreg ++ik qu6c9 n2phnd the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Wh66pr,gn km+he 2r c )9yhi+usqat happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral me r p3 i kqq34i-8;2divpsr;axstallic 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 forwarar rvxi8qdq 3si3;k-; ip4 p2sd, 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 constxlrl 1szekgg* 1o2y04 ant $k$, which appears in Coulomb's law?

  Two charged objects are separated by7l2 vzb9 ffmr7 a distance d. The first charge is larger in magnitude than the second charge2zbr9f7fvm l 7.

  Sphere A carries a net charge and sp)cxctp,m i * abp,*ro /pgg49qhere B is neutral. They are placed near each other on an insulated table. Which statement best describes theg p m)po*, *pigr/at q,9bc4xc electrostatic force between them?

  Two charged objects attl3 x pdlr 15af9m(l:skract each other with a certain force. If the charges on both objects are doubled wkp 3a f1slrlmdl9 (x5:ith no change in separation, the force between them

  Two charges are separated by a diswq5hes, ium97 vepd70tance 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 m 9hs7q7idmep w0v u5,eutual forces?

  Two charged objects att/ :v*bg,wf4j 9vhrmxkract each other with a force F. What happens to the force between them if one charge isf:/v9 kvw,bhj xmr4 *g 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 proton2-h5s 8 yq 4lnk6so2qhk n2z ct((otzj are separated by a distance of 1.0 m. What happens to the magnitude of the forc (n(l-2zoohq2y 6kkh 4nt8qcs2 t5sjze on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What hapwb5;p5 u8wgmcl3+hxmow( zn0r ao 4f*pens to the magnitude of the force on thboom;0uz+xw p4hc *f 5l(5a r gm83wnwe 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 to u(k x2 3 p,ajr.ivok q/yo4x2uthe siioq, ar (x4kuu/vpoy j2.2 k3xze of the force 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. When a secoo+:o-d -4*7 b bdu3,an eycl wqw8gcncnd 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 ad,4gweco :dnub-c3w8b*- c+ ayqon7 lt 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+ rijaol(8xk - 4) aledzfou3/ the centroid of an equilateral 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 theaj-lo +3k/ 8rl zae)4of dx(iu 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 vectowdl 1 bi4i; b1:hqk4rpr?

  At twice the distance from a point charge, the strength of the electri93tyepf87,nfy ui wc +c field

  Is it possible to have a zero eit0k,p hsl m85lectric field value between a negative and positive charge along the line joining the two,0m l5pt8shik charges?

  Is it possible to hava(hk kucbk;t d79rl 7(e a zero electric field value between two positive charges along the line joindl rcu9a;hb7kk((7k t ing the two charges?

  Electric field lines near psitqzuo kyb+t-n)m0s 62 yk+y61xt0a tuaive point charges

  The electric field shonckag:g-e.n: wn

  Can electric field lio5c:u ljfp-od,a4i 0gla* h- wnes intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a 2f8:n y tfs.;kbf uk xu6g47r1+2uzselv5 oyluniform electric field. Give a statement concerning the 2olu.rk:fs7 4 t6lbvzgy e2 uf1; x8+fnykus 5electric field in the block's interior.

  If a solid metal sphere and /2eqp5:w v2ebc i)p)hiur al-a hollow metal sphere of equal diameters are each given the same charge, the electriepp:u)/qiea 5rc- b) wv2il2hc field (E) midway between the center and the surface is

  A cubic block of aluminum reg t-w 9ifk w1p:q8.eh9zv3xkests on a wooden table in a region where a uniform electric field is directed stke i1wgx -zv8k3htqf w .e99p:raight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an elect/x5sfz 2zikr,o 3gw8j ric charge

  A positive point charge is enclosed in a hollow met+:p;xikjku .n allic sphere that is grounded. As compared to the case without the hollow sphere, the elecnkxu kip j+;.:tric field at a point directly above the hollow sphere has

State three properties of conduz l(ij)7rnz b8ctors in static equilibrium.

State Gauss's law.

  The charge carried by one elec3 a)mo fmxbf 32qv0v3ftron 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 chargeirzryx d(o4u kv jsb*x8)2kyf7g;8 a- of +2.00 mC. How many more protons than electrons does this piece of plastic hayrsu8j iky7obk( r ;2vx f8a)4 d-gzx*ve?

  What is the charge on 1 kg o glw9gh0 /95vdhpim -d5ml4 mbf protons?

  An atomic nucleus has a chargei+, +7 tlo x)ytjv/lcc 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 2.0usatv44w 23,q/k8 vvz fg 2rhj and -4.0 mC, respectively. What is the magn tk2arsz8,j w 3vq4vh4 gu/2vfitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between th g23av0d+ ax vtg,*tigsp(1r6 t)lpfcem is 1.0 N. What is the magnitude of the rg t,atxcvt*p12p l 3 6vi)(0 af+gdsgsecond charge?

  Two 1.0-C charges have a force betweqjl6rtn-og/ex-5m )gen them of 1.0 N. How far apart are they?

  The force between a .j,((yue k1j( a le0pvho c:sk$30 \; mC$ 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. If thn0z :3- )vqkos c)xo e u8--ctbxivx8oey are oq vzxc )eob:-cn - i388x)xo uv-0tksmoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis.yn6wf;gj 0h b; The first charge fjhb ;06wny;g 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 direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charyty qg s b5yzcb5*6b3;ge 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 mat*z b5y6 bgbys y5cq3;rk. 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 y6i qaff1ud: 4= 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 foi6:dq4 uf ya1frce on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and aecm)8 -jap q0qpqqs72v i3ak9 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 posq8q3ijeq0mvp2 -as k9p ca)q7 itive 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 m); Q3 = puv4v:p fo-q5 5.0 nC is at (0, 0). What is the magnitude of the net force on tho4puf5:- pqvv e 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (x4.u q+pnoe 27viu78l m)type jg +x9i0, 0.10 m); Q3 = 5.0 nC is at e p8 ii+qt7.nuxv94 )7 l+ogmjyx2pue(0, 0). What 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 equilaterap4/0 ifri4xd njmq5 y2;8 mr(jr0hwotl triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on ir(/ mq;40ti rj08rnwj4o fh5pd2mx y any one of the charges?

  Consider point charges7co,cf1st k( s of +Q and +4Q, which 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,7oc1 k(fssc t the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin ann e3 3y/prv2vy*tfsm2nfr d-4d 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 34 m y32reds-r yv2nfvp tn*/fon it is zero?

  Charge +2q is placed at the originkc7)zd7v+rg xlkg(6 u3bc as()y z ah8 and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so7) z a a(3kh6 sclg+buxvk(c7y8zd)gr that the force on it is zero?

  A copper penny has a mass of 3.0 gkki8buj z4 2wu +m,mbj6xv0b8. 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 agai -sf+ar* mcx(dnst the force of gravity by the attraction of a fixed proton m+d-as(rc*x f some distance above it. How far above the electron is the proton?

  Two 0.20-g metal sphddv4 0 r1-ldsneres are hung from a common point by nonconducting threads which are 30 cm long. Both are given identicalv4sd10rdln-d 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 th0*o t /xcfzvcow4m6 p-ag6( bye magnitude of the electric field at a distance of 1.0 m from the nucbo6t4*wf-omyzg 6p/va0xc c (leus?

  What are the magnitude and direction of the electric field at es63,r gw3 bz. rs3suza distance of 1.50. rszs6z rw33s,eb3gu m from a 50.0-nC charge?

  A 5.0-C charge is 10 m frof yp4ih1*z* llm a small test charge. What is the magnitude of the electric field at the location of the test chal*f 4zph yl1i*rge?

  A 5.0-C charge is 10 m from a small test charge. f .ived:g 2+-ylh vc9aWhat is the direction of the electric fi:i9-g l e+fyavv2h cd.eld?

  A 5.0-C charge is 10 m fros.n23fa/ sqz am a small test charge. What is the magnitude of the force experienced b3a s z2nsaqf/.y a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated bdez 7 4)olssn)kyx ;-hy a distance of 4.0 m. What is the electric field at a point midway between the tws h;y) 7xd4-z)nklsoeo charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meterjo z5v3zv z0v l7gu9-p stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm7vl9j5 v zpg-03zv zuo mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a74,kut0c bl ju -4.0 mC charge is placed at the 50 cm mark. At what u40 u,jlcktb7point on a line 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 x = 0.2i+h+jwy+ba2kvz-zuxvk: b( ,0 m. What iu vx2bbz+i(,+zwv - :kh ja+kys the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thshf+.d.nqg mev7 lu29g76 yq -gdbuy +ree corners of a square of side 0.50 m. The last corner is occupied by a d7g7q gv+lq2ufh+ ged6. y mby9sn.-u -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are p )s 0:9zu,x2+ kr4krvodzqajalaced 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 fiel0,+4kxsov2 za :k) dura9qjzrd at the square's center?

  A force of 10 N acts on a charge qwm9 k +ok8 o0lw+foi(of 5.0 mC when it is placed in a uniform electric field. What is the ma kiw(fok q9+8+mw0 olognitude of this electric field?

  A particle with a charge of 4.0 mC has a ma2/zjd k1yf; r t-n0avyss 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 inwn64b v-/ts )m1 rh0 c:;aticy fydr7q an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it cr4h bin:y7fr)t -m 6c0ydtsv a;/1qwto be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed iz ycgp*u,gw;l,9e( ti nside a uniform electric field, and is suspended against the force of gravity. What are the magnituig(9;tc*z,yw ue,p glde and direction of the electric field?

  A metal sphere of radino*+c2wcd4ip:kxmkl)) ua(s* +k wdp us 10 cm carries a charge of +2.0 mC. What is the magnitude a u2:*p )pwcw*dd(x+nm oc+4s)lk kki of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm ko1dfo ax. rd,7ute9)carries a charge of 3.0 mC. What is the electric fielekxr 179t ddoa,. o)fud 6.0 cm from the center of the sphere?