State the law of consmqp k5heq,.r 0q-w+ m6ry i6r q1x4qxpervation of electric charge.

  Is it possible for two ne4 9wzuyczg19lz h zr)n)zh3j; gative charges to attract each other?

  Is it possible for a posut5(o9hp+w) *9cp qmc/ eng ajitive and a negative charge to attract each other?

  A glass rod is rubbed with a phu*+*em iv8xlfsx;m. -x p0driece of silk. During the process the glass rod acquires a positive cxex*-dih8r .um sfp;+xm 0l v*harge and the silk

  A proton carries a

  The model of the atom showsgfs0 p:u/gf;i a

  A neutral atom always hasmi4 r j8i8b dml3vgb/7; yfyn8

  An atom has more electrons than protons.xbr fe*- irvln 1z-1f8 The atom is

  Materials in which the electrons are bound very tightly to the nuclei arktg3s .+k;xch4f+*o zg xn;tje referre gn;kztxjfg4ko * hc;tx3+s+.d to as

  Materials in which the electrons are bgl;(q8ohm 9e 4lvl vux-7f vu7ound very loosely to the nuclei and can move about freely within the material are ref-o lvuxv7;elh f( lu948qv7gm erred to as

  A negatively charged rod is brought near on . a(kf702g+sepyawjx6 xa.gye end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be y a ksw fa+a0ex6.(gygp. x27jcharged

  Sphere A carries a net positive charge, and spi w,g djvm i-e1(g,pik-3gr/hhere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wih-ekm(diiggr/pw1,gj , 3vi - re that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope g kkid 6+fe:;m,dgb, ppositively?

  An originally neutral electroscope is bri (zp c4;+kl xtbkkatxw3 /rb79hxz99hefly touched with a positively charged glass rod. The e9 (ztl+r 4bp/9k cakhhwxtkbx7 9z3; xlectroscope

  An originally neutral electroscope is y pq+4m +no: .,llekfkgrounded briefly while a positively charged glass rod is held near it. After the y:+kp4,oml+kn q el.fglass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the dh/y l1 p 9fnpj0g(uq:leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leav:(fjduhp0 ynpq 1l/g 9es?

  A large negatively charge0,b8h5 9 n,c7kj(ddjuycebg gd object is placed 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 rolls forward, but does not touch the negative object. At no time does either bale0 d95kug7 ,bcn j,8jbd(y cghl touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constv(a8r) v79g 6blxunmaant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Thjv3vl ( s0lkn9lfa:/g e first charge is larger in magnitudekf gnv 9l(/lsv3j:l a0 than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed ne zyh++dw7i k dphfo/i6 *4h2wjar each other on an insulated table. Which statement best describes the h/k++ hhwid ipo f2*74zwdj6yelectrostatic force between them?

  Two charged objects attract each other with a certain force. Ixt:3m *3kq1eok- g lnzf the charges on both objects are doubled with no change in separation, the forck k-z1:o *nme 3g3lxqte between them

  Two charges are separated by a distance d and exert mutual attractivew. s9u,-0 cux6erh 6t(kjorqn forces of F on each other. If the charges are separated by a distance of d/3, what are the new rje(tq-urs6n c 6whk. x0u,o9mutual forces?

  Two charged objects attract each other with a force F. What happens to the forj2z9en;ap:uu8 l ( )qlie g-mvce between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is r -lui 8l (v;ej:2a nue)qmzg9peduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by n fax bj wi2/4p4fl5w; 1p,mima distance of 1.0 m. What happens to the magnitude of the force on the p;/ mi ,xnm2jpwa4iw1fb4 fpl 5roton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a diswzq7)czq cy (6tance of 1.0 m. What happens to the magnitude of the force o7zqw zc)qyc6(n the 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 d- cl01s/5;guv/bemq ka*x z im. What happens to the size of the force on the proton /klg;/ *1q suad5im 0ebv z-xcif the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed atqw-. )5ifda)rt,,ji3fok1qxd sjs g * the center of a square. When a second 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 the squarw jaid kdq1x,s3r -tiqj s5f,g )f.)o*e?

  A point charge of +Q is placed at the centroid of an equilateral trianglezjvcpcq 7z-)-. When a second charge of +Q is cp-c -zv) qj7zplaced 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 center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a,gllmvx6yr2(fj 2 ih.c0rg v;/ zw gl. vector?

  At twice the distance from a point charge, the strength of the electri ngz/f8e dxvwnnm3)) beg-)w0c field

  Is it possible to have a zero7u75yac 2xe clfac*.v electric field value between a negative and positive charge along the line ja*vc7c7f5x yce .2ula oining the two charges?

  Is it possible to have a zero electric field value between two positive chargeso,zd n7dbpo/fr 1 /)l 0-iczqt along the line joining the two charges?/ on1qd/f 0rzptzdiblc- ),o 7

  Electric field lines near psitive point cn,wwuiqbeag3r x(e axv m65l0kw40, 8harges

  The electric field showdt/ (mief;+aw n

  Can electric field lines imah3qrjm 7kvxb ,+9t sc:s01lntersect in free space?

  A solid block of metal in electrostatic equilibrium i cc/lt2ue4 -s w+d abj:y3y3wo*m6glhs placed in a uniform electric field. Give a statement coc*le wugh/ l:d w 4bj2a63sy3 mocty-+ncerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphe 2fts4 yehyz;x+m v*9hre of equal diameters are each given the same charge, the electric field (E) midway between the center and the sur;z yyf s hh+xtv24*em9face is

  A cubic block of aluminum rests on a wooden/pm dap ,bmjp2p/p,)i table in a region where a uniform electric field is directed straight upward. What c/,am/jdmpp 2 p pb,p)ian be said concerning the charge on the block's top surface?

  If a conductor is in electrostat,fv1s( y(l -lt*yshxdic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere tha/ehmg* c(3l: -lbsxzvt is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abovhg -c :vlzb*x/se3(lme the hollow sphere has

State three properties of cou l jk-:5wsbqm0ck,v1nductors in static equilibrium.

State Gauss's law.

  The charge carried bys9 d,w;g3:2gt)lu 0kc, lddiar u8 hpy 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 hass1oq2;hj/gh x a net charge of +2.00 mC. How many more protons than electrons dh1q/j ;osh2 xgoes this piece of plastic have?

  What is the charge oiz;imz7jj-g s(pq o bcb0+1;tb*pq8 c n 1 kg of protons?

  An atomic nucleus has e3+38qy hy ylvregu t-z81d c*a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separatedg7n) hb. jjdb/p +nuztn(qrwrjt(*5 8 by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of z btpw *bhjjd()r( ntq/un78g n+r.5jthe electric force between them?

  A 1.0-C charge is 15 m 2 deyl v m:id,q3r zu+a5ojm()from a second charge, and the force between them is 1.0 N. What is thelozj, y )+i:vdmue(qr5md23 a magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How y 2 ec;x3ha ajkr:3qu*far apart are they?

  The force between a ;pxpm,2a +hcd $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2cwbe3 tps7b lye.9,6e ak-wv,.0 cm apart, experience a 1.0-N force. If they are moved to a new separpw76wk3vb,lbeteac9 s.y e- ,ation 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. Theqmzlxg(bh60oh;oj-+f9z u5gkg no t2 y y6m49 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 eloo y9gfn9 z ml;+h2(txu0o6mkzb jqh- g5y4g6ectrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge 3i c8r id4ohi,of +2.0 mC is placed at th3ch,8r i4 iidoe 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 electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 e)bz8:n buro, 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 o ber) b:nz8ou,f the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and af-a8.hhc qc f x2-uj -zear9t3 second point charge of -fja-8rqzftc2. 9ua3-e- x hhcQ 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 w kqd u zq79nj):mj4j7g: .ymn= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the q:j49:n wgqd 7ujm) kmyn.zj75.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -6-)r ;vrkv o9 gd huaqdhw.0*r1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the9wvru.g r*dhq k6d-r;0) vhao direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of. 7i2 cpmu/(1t jowj6qwswf k1 an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force w1.utqjo j w7ki1fc/2pm 6wsw( hich acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. ibpao wi 8;42wwlzvk jb:j8)1At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force j i8owbka:4bvw 1z ;wpil8)2jacting on it would be zero?

  A +3.0-C charge is at t g:jscgy8*b u. lz1es gou0g; o61zqr1he origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis c geoozqs1bj 1:zc us1*g.0;gryg8l 6u an a third charge be placed so the net force on it is zero?

  Charge +2q is placed at thejk 5) fsydp/ivg 6n5j.qxrx/. origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is q6yng5. jvj./x/fsp )5ixr kd zero?

  A copper penny has a mass of 3.0 g. 0a.,3flu /pb-tiyyy p 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 gravity by the attrac.m es ean l;vt9t(e,j(tion of a fixed proton some distance above it.s ;(ej(t,.nlm 9aetve How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduct +31 nk5id gii)m 3+gwgheudik(2wqi2ing threads whichnd 1qgi3md2)+ggk u(i2ehiwwk3i+5 i are 30 cm long. Both are given identical 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 ik4sp c5)jh4ij s the magnitude of the electric field at a distance of 1.0 m from the nucleuchj4kpi )4j5s s?

  What are the magnitude and direction of the -ik mzplp+* i;electric field at a distance of 1.50 m from a 50.0-nC charg + ;z*lipmkp-ie?

  A 5.0-C charge is 10 m from a small test chargyho *1fqidwn1 ;* ci9 jnkp/4)m3px kze. What is the magnitude of the electri 9 iypqi *3;1fpzm w)*d4ncj k/nxohk1c field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chak/*o(y pt.v xhrge. What is the direction of the electric field?*y(tx/.hpk o v

  A 5.0-C charge is 10 m from a small test charge. ifyi2yj g :d9tybu**g5ns 4/wWhat is the magnitude of the force experienced yty in*swjgu4fb*2g i:/5 9ydby 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 by a disixx+(6, sfm .+9jvg3q lbini* , u+bnbpyfgn.tance of 4.0 m. What is the electric field at albg n(+ q39psy*xiixm+,nib6 u . .gjn f,+fbv point midway between the two charges?

  A 5.0-mC charge is placed at,cv e8mt) q-lpnjk2 a7 the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30l2 qtnj7cmav8pk e,)- cm mark?

  A 5.0-mC charge is placed y (mj u,cqc1r1at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on 1r cjcy,qum (1a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC a 30(dh iq5bed8plb/vlre placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway betweenb0 lhdv5e(lqdpb 8 /3i them?

  Three 3.0 mC charges are at the three corners of a square of sidlu5fv5ke 7198mouh( llg;(f erx)v y de 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of thul9(5x5v (mof g e klr;f8dvyuhl)17ee square.

  Consider a square which is 1.0 m on e(ouag*az2m7c x 1y*d1e1tnf a side. Charges are placed at the corners of the square as follows: eo2y gtnxmzd 71ca*1 uf ae(*1 +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 charge of 5.0 mC whenvh8 mv:vtkk8l)j u7o ww1.*dmi a6ce; it is placed in a uniform electriched*wv c1)a vjm8vtmok78. u:6 l;w ki field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mvra*z)7llo9e ass 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 electric field of 6000 N/C po eypsqwip9cv6109of*inting downward. What charge must be placed9psie6y9vp w1c fq *0o on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is ppq(2kddq4qd u p7r;x 3laced inside a uniform elecd dqqxrp qu(;2 7p4kd3tric 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 carries a charge of +2.0 m.edpe- 5g ap;sC. What is the magnitude of the electric field 5.0 cm from the s;dp.5e -sa gpephere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.00pp ect 2uvf,. +6mcbaca y:n0 mC. What is the electric field6fa,t2y+ pc0 e mncpau. c0:bv 6.0 cm from the center of the sphere?