State the law of conservation of ele;x5i mdhds5h(ctric charge.

  Is it possible for two negative charges to attract each /fwpn y2hye)hbo4 8-c other?

  Is it possible for a positive j+jwng20(nba.1 e rq eand a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Durinn v0k pi(b-do)g the process the glass rod acquires a posip0ki(bdov - n)tive charge and the silk

  A proton carries a

  The model of the atom shszx,9p, 7(nq*qhrz n(ul+b 9 rg-glv sows a

  A neutral atom always b -x jooh, 3,3kdcy(clhas

  An atom has more electrons than protons. The atomumj1i4lq 0dp6 is

  Materials in which the electrons are bound very tightly to the nuclei are re9cx5kc 1y6drmxytu 8, ferred to dcy5c86mx,u yx9 1k rtas

  Materials in which the electrons are bound 3qap*)z q6 fmx1ji l2hvery loosely to the nuclei and can move about qjq16zam ipl2 h*x3)f freely within the material are referred to as

  A negatively charged rod is brought near one einu1 n,k0e* lepiep ;2nd of an uncharged metal bar. The end of the metal bar farthest from thelpink*p0;i e eeun21, charged rod will be charged

  Sphere A carries a net positive charge, k lm4ua0(j7,mg yu 68s gf1 q3bt9phvfand sphere B is neutral. They are placed near each other on an insulated table. Sphere B is bry 01mmlkfg7bgh(sva98u f 3,p4qtuj6 iefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electrosc,yg d.sjak9k9ope positively?

  An originally neutral electroscopfrya y/gtl ( j7,d7u vz)+fle msm,7x5e is briefly touched with a positively charged glasryl7+f jx ,u5( elzsdaft,)gm/v 77mys rod. The electroscope

  An originally neutral electroscope is grounded b(rr*v.w, 0ey* d0hxprl l7kfw riefly while a positively charged glass rod is held near it. ll0f7 r,*rkwprey( d v0.hx*wAfter the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope,)xyt ,n53qch l and the leaves separate. Then a negative object is brought neart35)hqlcn xy , the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placedcbxu-5t l.zg/i; eoo 1 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.ctx /oug-;b ole5i1z . 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 constd0;o *w3 jib o5u.keahant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largtg+f.9bcjhp a.v6*5 1u mxgpfer in mhb + c1.favj6gpp 5gfmtx9u *.agnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They areuyfhsx)il , s2c6f(n* placed near each other on an insulated table. Which statement best describes the electrosty)f lus (cn* ,sxihf26atic force between them?

  Two charged objects attract each other with a certain;(iivesm9h; ifd :ii ) force. If the charges on both objects are doub is:iv;;i 9 )(ifdhmieled with no change in separation, the force between them

  Two charges are separated by a distance (t/svn/p.lhqhcb/v 8z2 e(ird and exert mutual attractive forces of F on each other. If the charges are separated by a di./ bcrp2(tqin/vhe lzv 8(/s hstance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happensvyy j;fa0c:+ ,oqax a; 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 valueaa;:0yo+ ; vfx jqa,cy? The force is now equal to

  An electron and a proton are separated by a distanc mj.or:;mzab)e of 1.0 m. What happens to the magnitude )mbomz;. :rja of the force 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./u :05pe 3vihgs)m iuu0 m. What happens to the magnitude of the force 0 v giu ):upem/ihs3u5on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distai/.otv7 y,xs h x((tjonce 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 the proton?/o sxj.tx vo(yth7(i ,

  A point charge of +Q is placed at the center of a square. When a seco hlk0 ,z:u)eih +ny0jjnd 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 positiun+0,:0h k)h eiljyzj ve charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilate(o(a4t ;l i yq2+qvcgcral 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. W ;iyvc(+(l o2 cq4atgqhat 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 vectorj ) -,wgmi*ixf?

  At twice the distance from a point chakxa b954c69 qeqoa:o5n e:falrge, the strength of the electric field

  Is it possible to have a zero electric field value between a negat/bws-v6a :p luive and positive charge a/vau6bws:l -plong the line joining the two charges?

  Is it possible to have a zero electric fie bnhwc6.m3b 2uld value between two positive charges along the line joining the two chaw3 2.bumbhc6nrges?

  Electric field lines near wkie;oo l8h58 psitive point charges

  The electric field shoig;aeh-bj /,d.kclp 01el3 azwn

  Can electric field lines intersect in f* 5kp:jz n ykqaw,a9s5ree space?

  A solid block of metal in electrosq me-g1 gdj-s+tatic equilibrium is placed in a uniform electric field. Giveg1s -q-m+dge j a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal gncon gg-2ui.9-r w2 qsphere of equal diameters are each gignqo-.9nwg2giu c2 - rven the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region wher:f.qofkq- n )d; k5tyj- d.jlze a uniform electric field is directed stzoqd:. - qjjf.nyk f-tdl;k5 )raight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equila* 8lcv mldz.nbty47) ibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere ty1nfkug8rwr)(zyh k(;ha , :shat is grounded. As compared to the case without th w:k y,yhfa81(zs(gu)n ; krrhe hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertisn 1f4dx5 /s pzbs/ybwz69n b(es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by q2t5v7 jvulawc.g 7v 4one 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 netqmxhf;qv7 5*y charge of +2.00 mC. How many more protons than electrons does ty7qh;5qxf vm*his piece of plastic have?

  What is the charge on 1 kg of protonsr0scbjjuip3)x dd-3n0 :hhvx5 1c1 ;pe umh,e?

  An atomic nucleus has a chao6tsfk4u fw* 4rge 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 ybidp( cb,g4n3,n qoseo-2 u22.0 and -4.0 mC, respectively. What is the magnitude of q (g43sn, n,bobdy2-poe 2i ucthe electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forcun s; kx3ctdoju4en.o*by+7 +e between them is 1.0 N. Whk * suedou34c+jxt.+no yb; 7nat is the magnitude of the second charge?

  Two 1.0-C charges havedd2) )l0 j txj(vbs7oc a force between them of 1.0 N. How far apart are they?

  The force between a g e 1( eoiwz:i5a5pwu88wag(x$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experien:pf3arv,qf r99. q: cf zhss;wce a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force betwe s 3:s,wf9 :af.f;zqp rqr9hcven them?

  Three identical point charges of 2yl g + zlju3c/(gmz5l(.0 mC are placed on the x-axis. The first charge is /uglgzc3 5jzl+ym( (lat 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 sg3 3tshjk9;hnqcve ;1o: nz,are placed on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 v th3s9s z1,j:nq3;nch g;eok 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 which acts on the charge at the origin?

  Three point charges are locat wyx0. oid)zu/c1d0ss8yl.xped at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.o8scysx0z0)d lyxu w.1/ d .ip00 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 pli-do s3 hhwr.1.wys/laced at the center 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 . wos13h rys-.dhlwi/ 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, 0.1x5 fbvvusa;4z f xtt;c6ag+2 /0 m); Q3 = 5.0 nC is at+ fu5fat ; xgzatv6csv/4 2;bx (0, 0). What is the magnitude of the net force on 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 qbx5:xx6m(wv; tx2xn/od n0 g= 5.0 nC is at (0, 0). What is the direction of the net forw tm0xx5nnqg(ox:; xv bx/d 26ce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of a;qq4* pczt qvi1qj /:ln equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts onq :;jqtqzc1iqv 4*pl/ any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 6aplpkg-zlb kc 893c+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 the electrostatic force acting a9c b+l lpk- zcgkp386on it would be zero?

  A +3.0-C charge is at the origin and aep*e0skm *rf5 +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be5* eprm kse*f0 placed so the net force on it is zero?

  Charge +2q is placed at the origin and cj0 r7.1/- hjeusdskn aharge -q is placed at x = 2a. Where can a th7 ess/anuj d10rh.-jkird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total o6 .(hch k,1kvxrg ing3f $4.0 \times 10^{12} \; electrons$ 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 f zb:bp9vsru/wg3b) 2yorce of gravity by the attraction of a fixed proton some distance above it. How far above r :2pszyv/b39gbbu) wthe electron is the proton?

  Two 0.20-g metal spheres are hung from a commo* qanpnb*)b 42(xle 3e1ijjt/4 mygyqn point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces tb n 4jb**1 i)gnxyp y( qlemq34a/tej2hem 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 +40- xhdt2azc )w(e. What is the magnitude of the electric field at a distan) zxc2(awdh -tce of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fiuv jak0/saaxfx 6vf)2 nj;:w;v,nl ) held at a distance of 1.50 m j nv wf2/xvv0u:6;),sfaax)alkjn;h from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a smallw:(al *avh6xu 8eq,pj test charge. What is the magnitude of the electric fiqa jxvl(*:, hu 8wea6peld at the location of the test charge?

  A 5.0-C charge is 10 1s4* pfeb dy(blit9) wm from a small test charge. What is the direction of the electric fie4plbs(wby 19e dfi*t)ld?

  A 5.0-C charge is 10 m from a small -d41mq 6v/ektchws qgl6i04bdtmxz .2h6 +attest charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location+-42/sqdha0zled6 c6m m gtb46tw v1.ihtqkx of the test charge?

  Two point charges each have a value of 3.0 C and are separated by-1o5oy p+j fwmtwb+tp5+on/ d a distance of onojy +pt+5p tw5w+of1b/-dm 4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 r+tga+pn.y+6 nqnaa2 mC charge is placed at the 50 cm mark.2yra+nnaatq n +g p+.6 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 8umnvj t 0k9nn66ejc5stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charunnt08nke 65m6v9c j jges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = kgl :x54 l/txfqe /c *rmby)dd2z8l+b 0 and x = 0.20 m. What is the magnitude of the electric field at the point mlc8rm/fb*g/dx lt e :)5xlq +dky 42bzidway between them?

  Three 3.0 mC charges are at the three corners of a squaw eo43vz6ouu(o t;8gmq,uiu -re of side 0.50 m. The last corner is occupied by a -3.0 mC charge. F 3ougwu4z uvi(m t;-,qou6eo8ind the electric field at the center of the square.

  Consider a square which is 1.0 m on a side:hk*krp.n w x(a5+ka i. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +wha(r *p +k5i.x a:nkk3.0 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 o f9zwz;9hoc5 jvz u.)charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this elz)f j;zw9z co5h9u.voectric field?

  A particle with a charge of 4.0 mC has a mass odrd 2v26h/ag2 ikgf2 lf $5.0 \times 10^{-3} \; kg$. 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 el5g2. gsgn 2higt90emd(pvda1 ectric field of 6000 N/C pointing downward. What charge must be placed on the1at.sd 0 gm5( dg9 2nhigepv2g ball for it to be suspended?

  A foam ball of mass 0.150 g carries a c .u w0dbsf,1iy;2 c1ir-nzk; qaor)sgharge of -2.00 nC. The ball is placed inside a uu w0gno )q sd-;kycbira;r211 si.,zfniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm cakq2xwpac cfm f;j 2x/j-3u :n5rries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphekman :x5f2j-/c; px3fjw c2uqre's surface?

  A metal sphere of radius 2.0 cm carr6 d 7ia.nos4ories a charge of 3.0 mC. What is the electric field 6.0 cm from t6oa.od4 r 7isnhe center of the sphere?