State the law of conservation of elecu t3hbbz q9q(djq4i+o:n r-0btric charge.

  Is it possible for two negative charges to orpw1ub2c0/im uhn ez(en(5 .attract each other?

  Is it possible for a positive and a negative charge to attract eachd 7.rvysrfp)thkg w cjp62* *b/w;o6 v other?

  A glass rod is rubbed with a piece of silk. During the pr+r ss p 4(qbm72vjtgq;ocess the glass rod acquires a positive prm7s 2bj tvq+q;4s(g charge and the silk

  A proton carries a

  The model of the atom 1j ;as0e28usvz h*kqhshows a

  A neutral atom alwayzxv vyir/1vig 4woy+7n,dv;(h6 : wdas has

  An atom has more elegxlpd2a5nyr7 e0t aq62h /hl-ctrons than protons. The atom is

  Materials in which the electrons are bound very tightly to the n-lf /glqwg o/.j.+e hxuclei are referr xfl//wjg+qg e. oh-l.ed to as

  Materials in which the mec +h )7ph4hfelectrons are bound very loosely to the nuclei and can move about free)7 c+fm4hh phely within the material are referred to as

  A negatively charged rod is brought near one end sj rqw* se.p ,(g6i(l8p.yfzz of an uncharged metal bar. The.l (ryp8z,p sqj.ew(6*fzisg end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net p3 0n8 3aeqjkwcositive 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. Which state308 jk cnewqa3ment is correct?

  How can a negatively charged rod charge an elect;u a 43ya6epkrrr dt3/roscope positively?

  An originally neutral electroscope is briefici zq q2ym*98ly touched with a positively charged glaci*iq z82m9 yqss rod. The electroscope

  An originally neutral electroscope is grounded briefly while a post2goj)dinf9reng w;m . ,j9 *:ese .asitively charged glass rod is held near i,mrgi.:a9nojn e9e)*.;j sds fwte 2g t. After the glass rod is removed, the electroscope

  A positive object touches a neutral electro6- r e3ll*34 o(tfpenrw)i fckscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happensp(nrwc*l36e4 t 3f i-okl)efr to the leaves?

  A large negatively charged object is -uyfh0a .hyh /a;9)dh0nlnk rplaced 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 rol9rhn hd0 luh.)fk 0-an/yy;ahls 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 th um-( xr5iyz1te Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is8c a/hnq7u-s tb;p to2 larger in magnitude thaup/8bc 2 -attsh;q7 onn the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed nx01tda( bz6hs ear each other on an insulated table. Which statement best describes the electrostatic force between 1x(06as zhdtb them?

  Two charged objects attract each other with a certain force. 8( wz k m*jipdiev/:wit 80bf- If the charges on both object:8iw(*- /tkzd8v i0 efmb wipjs are doubled with no change in separation, the force between them

  Two charges are separated by a distance d an d x-kyrajco.2) aek.1d exert mutual attractive forces of F on each oty.ekcjao)d .-r 2x1kaher. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other*kxwqd bajfq 0(b1;(t with a force F. What happens to the force between them if one charge is doubled, the other charge is x(;bf0 q1bdqw ta*kj(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 a distance of 1.)f(mg+faq,lr 0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electron g (qfm+r,)fla?

  An electron and a proton are separated by a distance of 1.0 m. What happens to2c+llj,e6pi /lu; l r,k uyp*k:nfvo4 the magnitude of the force on the first electron if a second electron is plapufp6l+ ull e*n:v ;k4rc/, 2oyjkil,ced next to the proton?

  An electron and a proton are separatavr1y s,r pfo:1 xm).sed by 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 tomps ).:a srr1y1v,xf o the proton?

  A point charge of +Q is placed at the center of a square. When a sewj2x0zcc2yv8*5ujf 0da g e )icond 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 positive charge at the center of thjv0e2 8fy c2 0ga udwz*5xc)ije square?

  A point charge of +Q is placed at the centroid o7/ui l7bqpmpc i: pqc e)z)(h2f 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 the force that acts on the centerl7pz: hbp7 pcu/(m qi2c)iq)e charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following rkj op(1)daz+is not a vector?

  At twice the distance from a point charge, the stren) ytkh9dz7cadx .h/t+gth of the electric field

  Is it possible to have a zero electric fie;n5 xzk44nz,r qhh fl5ld value between a negative and positive chaf4 n4n zq 5h;xr,lk5zhrge along the line joining the two charges?

  Is it possible to have a zero electric field value between two pos.+h fxntbxnhp+ c*t(1pn iw :*4riq3sitive charges along the line joining the tw+fhsnip+*( nh.pt bq 4twir3:x*c x1no charges?

  Electric field lines near psitive +f) n5.m5,j1ze xa:yowk t5tyz 6rvh jpoint charges

  The electric field shx vhjh11 ee3l ;+o9i:o1rsm.sep*qy qown

  Can electric field lines intersect in ftrureh 5)5 0z)czm 0n 1weum2pree space?

  A solid block of metal in electrostatic equilibrium is placed harsd8 sxh-6b79 argcc7v9k. in a uniform electric field. Give a statement concerning the electric field in the block's i6 7.csv7gh -9ca9hdxr ksa8brnterior.

  If a solid metal sphere and a hollow metal sphere of equal diajf0e/ hx- fpo o7jh0o6meters are each given the same charge, the electric field (E) midway between the centerof-p7x0ej6 ofohh/ j0 and the surface is

  A cubic block of aluminum rests on a wooden table in a region qz -po/ ;kjl7vwhere a uniform electric field is directed straight upward. What can be said concelpzvkq7/j-;o rning the charge on the block's top surface?

  If a conductor is in ,ud(oe3 ljky(kh. vs5electrostatic equilibrium near an electric charge

  A positive point charge i-jupo1bad2j5 s enclosed 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 hollu-d25 pba joj1ow sphere has

State three properties of conductors in static equilibrie9b ln z0d6;rzsf70ocum.

State Gauss's law.

  The charge carried bl(1hei9--bwd q m9f afy one 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. Howv ki.y9 k+lmd9 many more protons than electrons does this piece of pl.l9 ikkdv+my 9astic have?

  What is the charge on 19;67 scic d vq1*r9qtet fp *n2g1q +u5rkncfj kg of protons?

  An atomic nucleus has a charge oft/2p:6epzp 9iqrc q7g $+40e$. 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 -4qfkiyu y-266tbdno 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between th-nty6 2qidfy6 ob4- ukem?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.08e/.svu(n( g u evl3lwr 5(xlm N. What is the magnitude of theu(l.3 rx wevungl 5 8vls/(me( second charge?

  Two 1.0-C charges have a force between them of 1.0ntmzs g zg2lu*/* (,gb N. How far apart are they?

  The force between a wj t1j0,pio r($30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exwwqt,k z 10hv9perience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric whv1k0qz9 tw,force between them?

  Three identical point charges of 5wmb-zi )vfux06 mou3g enbpxq1-( 8l2.0 mC are placed on 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 are the magnitude and direction of the electrostatic fo bn3 mulbxeg1z-m6 )p (w 0xf8qouv5i-rce which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.p(vunk12z 0hdi9 +iwy 0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC aw p1k0i2nyiv z(hud 9+t 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 )xbjjce;734i wkf l9i= 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 force on the 3.00-mC charge? ijce9j wk l73)4ix;fb

  A point charge of +Q is placed at the center of a square, and a second poinky yf 5s8s:s:bt 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 charskfy8 :s:syb5ge 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); b//di:wsl j/fQ3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charg iwl/b:s fdj//e?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is 3h 3e b;vr*qywat (0, 0).3we*q r hy;b3v What is the direction of the net force on the 5.0 nC charge?

  Three identical charges ok0vxh zc1rr;7 nwl2. rf 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 rr2l0rvhw z1c7; n.xkacts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whah qcm/ : rx29(lccbrj:t point, on a line between the twj b:cr h:/c9x l(mc2rqo charges, would it be possible 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 or6rb (v..go,ag fugka3 igin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed sokg,b.a ov 3.r6fg gua( the net force on it is zero?

  Charge +2q is placed at the origin bsc b+p rp6. birl 2yksw:g-;9bq87xmand charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zero?b ;lcsrw p + i.qb296x r7ms8bgyp:b-k

  A copper penny has a mass of 3.0 g. 2xdya7 i/(vbb;eck ) y2v5stqA 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 gravity by the attraction of a fixb pbn..wrddb /w4g3 h7/htqv3r v8l p+ed proton some distance ghdww/ dbnv.br48.phl r t3qv+73bp/above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by 8ckayy b (t+0lnonconducting threads which are 30 cm long. Both are given identical charges, an(ykyc0l8abt+ d 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 the magnitude of thedk2nq j-. bivx2 (8dms electric field at a distq(sij d kn28 2v-x.mdbance of 1.0 m from the nucleus?

  What are the magnitude and direction* hc5u zwl88vh/hbd,f of the electric field at a distance of 1.50 m from a 50.0-nC whd l8uvbh 5,8fh/zc* charge?

  A 5.0-C charge is 10 m from a small t .h/vaw dwsw( )e16yib/znx+yest charge. What is the magnitude of the electric field at the location of the test +bxw dv iywa/y ewz ().s1n/6hcharge?

  A 5.0-C charge is 10 m from a small teyl e 0ozudz7g ohw-eg2wmw*:9/v dd -6st charge. What is the direction of the electric fielddw7:ouzeww0z2yvmg9l *eoh-/ 6 -g dd?

  A 5.0-C charge is 10 m from a u3n+ ;ml gmop-hw) u+43*wr9ad dohr ismall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location o* mm3dig+h rw4o urowh9a;n)+dlp3u - f the test charge?

  Two point charges each have a value of 3.0 C and are separated by a di*-2x(qjbz jv: m2 ,agnf6fuwl8 v txi.stance of 4.0 m. What is the electric field bnw uf , 8*6 -fvlg.mt2iav(xjxj z:q2at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm bwb 7,lh7c(jqndns v1- a6w+q mark of a meter stick and a -4.0 mC charge is placed at,a 1(qnbwq6 7 clbnsh-7vwj+d 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 mars-ia2 * -tc:8we otgf/l gug8wk 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 i-cg*/wi a88- tls fw2gu :etgos the electric field zero?

  Two point charges of +3.0 mC and -4ht *czlge4 y;7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at ytcl;e4z*4 h gthe point midway between them?

  Three 3.0 mC charges are 8:duiyfm k74 hat the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the cenmu4y :i87hdk fter of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners;-pylk/r d) dbixy z7m5m)s+ f 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 field at the squarsdb rmifp x7 z-dky/5;y))m l+e's center?

  A force of 10 N acts 2+gkh76agm *uh f9c6lw d50zucw 3z wbon a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of 6bl3 6 cw g0ufauzh7w52md9zkgc+*wh this electric field?

  A particle with a charge of 4.n.qh3ws8/k t *s )rd+)lwb hhy0 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 +llh5hw qf-)g/f1:vyexg 9d hmass 0.120 g is placed in an electric field of 6000 N/C pointing d+):g 9hflq xegdhfy-wvh / 5l1ownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 q g:/i3aexr,l,o ,(efr;aaz kg carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the o qk,; :ieg, l,a(rz3 f/rxeaaforce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What9*k:tzi/xwqs)k m p ly+t o./v is the magnitude pk): kszi/q9*y xtmv. w/+otl of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wuc.np ws ug*x33,th+e/hzy e 7hat is the electric field 6.0 cm from the centhpn 7w+xu.cgt*y se3e hz3u /,er of the sphere?