State the law of conserva ghk0o*o st42ztion of electric charge.

  Is it possible for two negative charges 0zz md:w21(umxts h9pto attract each other?

  Is it possible for a positive and a negativnz9 mtd*,d4cae charge to attract each other?

  A glass rod is rubbed with a pguja /u2 5lddxc3 0f6lz1b jea (n8dw*iece of silk. During the process the glass rod ac5 u8exdb ga/2udcdz 3jjwa 01*(llf6n quires a positive charge and the silk

  A proton carries a

  The model of the atom hh2o; (2;vv9zjx/ p.sedabek :z cxc1shows a

  A neutral atom always um3uglf)k5-j has

  An atom has more electr7 j :lhdf4 ltk:psn+:ff- *wruons than protons. The atom is

  Materials in which the electrons are bound very tig)9dsh/ v/rp my97pj n ykw62jehtly to the nuclei are referred to ashjnk6pye)//vs9 r m y29wj7pd

  Materials in which the electronra z))abje;y fq16x a;s are bound very loosely to the nuclei and can move about freely within the materi zaxfr16a) )ebyaqj; ;al are referred to as

  A negatively charged rod is brought near one 5i0zf uv m b x1ogruq+o(9,po( duj6)lend of an uncharged metal bar. The end of the metal bar farthest fro(v6lg9iq rzfd)o m5ux0,+oo(pj 1 b uum the charged rod will be charged

  Sphere A carries a net positive6 kngig48b t h7m 8.5epmykg,v 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 statement is c.m5vp, 8gghnet6myik4 bk8 7gorrect?

  How can a negatively charged rod charge an electroscope positive v/ia vbcs,b;,/8dpt-qyt(qb *vm8 muly?

  An originally neutral electn58:2j4ppcs 5 bamrpa q+4)ibc+s sbproscope is briefly touched with a positively charged glass4c + mb5cs5s b :p28a)srpib4p q+japn rod. The electroscope

  An originally neutral electroscope is grounded briefly while a pqk u;xf6+ :wl kyqfo/:ositively charged glass rod is held near it. After the glass rod is removed, the electros+kq :kuoxfl6 w/ :fq;ycope

  A positive object touches a neutral electroscopelbq( lzc*v4/cv + b09;xcnj pe, and the leaves separate. Then a negative object is brought nearjc q4(evbn0xvllp/bzcc*+; 9 the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neut5m3nz 6yigcg kr: r4o3qn m:-fral metallic ball rolls straight toward f6gc: 4gqori-:r mm3zkn 3y5nthe 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 Couvz;ytj (tp1g;,(cnc ylomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge iyn e,awsb u875s larger in magnitude than the seco5ye ubn ,8saw7nd charge.

  Sphere A carries a net charge and sphere B is neutrz z z* sm6h ,vx4rm4o(077ktq els4cdkal. They are placed near each other on an insulated table. mc 74r s xqz,lzd z4ve4tsh 6k*70mko(Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. Ixrzz0a1n1grx x mf+ f4 *ea.e/itx. .x0mvf (zf the charges on both objects are doubled wif.x.(4/a.re xxv i1mt*ae0n1 xzfz grf0x z+mth no change in separation, the force between them

  Two charges are separated by a distance d and exert mukkmh+ ;mz.y i/p xmu+8tual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutz+x;kkihmuy/m +p 8m .ual forces?

  Two charged objects attract each other with a force F. What happens to the forcxyve0p,1t m;dy8 9qsje between them if one charge is doubled, the other charge is tripled, and the, 9 m0yqsxdvytp8e ;j1 separation distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton v8tfb a594 c/ ckq+.xguegt5 care separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a secongteccc9gu. bt a+xkqv8 f 4/55d electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens toz pxx -cqy *9f1wciq49 the magnitude of the y1x w qzxfq9ccp4-i*9force on the first electron if a second electron is placed next to the proton?

  An electron and a protjp 0 .) q1kntakl0s4mxx1a5 oton are separated by a distance of 1.0 m. What happens to the size of the f0. njtloak1 xakp1)0tqms x4 5orce 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 6 y;8 -- 7;lvwnzuam( allbhciof 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 hlv8mz-ubn aca;l7-wi ; (yl6the 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 triangle.xuisfmc1 z k5e ,q17l2 When a second charge of +Qlszx,1c 2mfiuq1ek57 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 center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the followin+z-0tlys5z(n; y dcc xg is not a vector?

  At twice the distance from a point charge, the strength of th8kd v/io +es3e:yt 03qrfv iz.e electric field

  Is it possible to have a ze78a h m6lz e;wm3utmf)ro electric field value between a negative and positive charge mz8;3tm am )luehfw67 along the line joining the two charges?

  Is it possible to have a zero electric field a6a. r rx:xwn/3 ;f6onpgk(4np,aku hvalue between two positive charges along the line joining thp3hk x:4 auwa; f rakn(rxg.6/no 6n,pe two charges?

  Electric field lines near psitive point charg to+ rbjbu92q0es

  The electric field sh c(: k6xtivj8xx7;b3:goj bpcown

  Can electric field lines intersect i0t(-s,vmelonuwz b(6n free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform e+p e) pgm+fk/mg xife 7t*ugw;863kqylectric fiygee8*kpip u+t;w6 / f+m )qxf73kmggeld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eachsc 8*/a0;- nmut rrmod given the same charge, the electric field (E) midway mtdua08 */ s-oc;rnmr between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifor4cki n1* gj;m3p tv:9wtgo)bk m electric field is directed straight upward. Whatk:4giwbn ;p1c kto gv*) m3t9j can be said concerning the charge on the block's top surface?

  If a conductor is in electrhcmh ax: 3(g1m+cp +soostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spheremmfje,3m :pj.)tgl7yev .t dpfm(v 5pql/ - .v that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollo(lgp/ 7tmd .yfl -. mp:mjvfpe3v.v)me5q ,jtw sphere has

State three properties of conductors in stat(c7n*.:c)o5r )ukrut)fjo fcxhfr8n ic equilibrium.

State Gauss's law.

  The charge carried by one elecmha+-,cwu/ litron 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. How many more prow*ngd q6f bi,7tcnv 4hr5p e hiv378v3tons than electrons does t3w7n p 6 cvthi*,5gfvridv 74nh e3q8bhis piece of plastic have?

  What is the charge on 1 kg of protons?g:ygy1.ne ;80mgvak j

  An atomic nucleus hascem5s-n r nb( /ow-c0l)mqe*c a charge 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 2.0 ay6d:iuo1n,m x98m jezi +7qpgejgf* 6nd -4.0 mC, respectively. What is the magnitude of the electric force b1+8*fu exj6ej:9i7ygm pm gni ,zqdo6 etween them?

  A 1.0-C charge is 15 m from a second charge,nbpw atw 2fb2dv+a 354 and the force between them is 1.0 N. What is the magnitude of the se wa4bw5f32dnatv2+pbcond charge?

  Two 1.0-C charges have a force between them of 1.0vuq acqjq *8,w/7ms;g N. How far apart are they?

  The force between a b ci );k,kl3yg$30 \; mC$ 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 thh r8np olu4fog;h((vaixvu k 7)j(;1 fey are moved to a new separation of 8.0 cm, what is t rhxk7lv4 ()( uf iujg(n;pof;o1a8vhhe electric force between them?

  Three identical point charges of 2.0 mC are placm. x91xq :ixwved on the x-axis. The first charge is at the origin, the second to the right at x 1xv:x9x. imwq = 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 +2.0 mC tl.j*tp5gjw 2y hxz.2 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 direction of the electrostatic force which acts on the charge at2.p5t *j2tygjlhx.wz the origin?

  Three point charges are located at the followioppeo/xproqfhx3 xn qz6fw *0667j n a3)g3i /ng positions: Q1 = 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 fq3wxo q3j67 0no6pai n o6)p/rx*hg 3fpexz/?

  A point charge of +Q is placed at the center of a square, and a second poing;o o6owr,2xo,wc5rz t 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; oor,x5 2ww,6 rozcgo 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 zufxva.gs42x 0 tlk) u;jdj.9 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of thev)u ;x4x9zu..d tjs2a kl fgj0 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 2.ftaileyy.q/gu- dvyt :) 5 xm); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on t5)qgeixlv-f a.dy.yy/2 tu t: he 5.0 nC charge?

  Three identical charges of 3.0 mC are placed a.szzws4,0 m +: otienlt the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the e,ti0ns4el:m .s +owzzlectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, /qh yfnjzeh ,8s x6xcvd9ya . :1w(lo.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 s (d9e1j 8av:6hywh.xsy nxo,q /.fc lzuch that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C chareip y-q1 3fobvxrn5 vq7 ,nrj-2-znc .ge is at x = 4.0 m. Where on the x-axis can a thir-vx523 p1r y zrbn7qinco -vj-f ,ne.qd charge be placed so the net force on it is zero?

  Charge +2q is placed at tvbv71gjh ;uy 7he origin and charge -q is placed at x = 2a. Where can a third positive charge +q be pla77jhv1; g vuybced so that the force on it is zero?

  A copper penny has a mass of 3+ gij01; vgnfz.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 o3tj6-ucy9d eyf gravity by the attraction of a fixed pro6 3uye9t-jdy cton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductinrlzmkp/h ( )o .x;o-9,xgfw.fa)qouwg threads which are 30 cm long. Both are give az.wog(ho-f/,xw m o ;).rx fq)kulp9n 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 chu(k4 dir cyocwml(uw130- 0hr arge of +40e. What is the magnitude of the electric field at o(h3rccky 0 l u-wi0mwd1(ur4a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.5cztjehhm 00hj 6+(z tzeg4z/40 m from a 50.0-nC chzztzthzhe4 (j+ 6mh400egcj /arge?

  A 5.0-C charge is 10 mb/ 8yijs4qyxm:snn4 3 from a small test charge. What is the magnitude of the electric field at y44 bn q s:imxj/ny3s8the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of tjm,0dmyz5 s)ms m7eqp2 ;x(h the electric 7z5(md)2m,q p;m0h sx sjetymfield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of . -xa0aqn6xz yx ul:-hthe force --h 6x: .0nx aulyzaqxexperienced by 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 ahk yk)-2atyx6 distance of 4.0 m. What is the electric field at a point a ht6x kk-yy)2midway 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 chjv k.bu/4b +2mk k2bqoarge is placed at the 50 cm mark. What is t2kq2b+ k/4uobkmjv.b he electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stiyy 5zij* 9ss2qck and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges59yqs j 2y*zis is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and ej2i dw2krcr3- /xgqi,/zs 1l x = 0.20 m. What is the mags c kii1lz2rgdr3-x q,je/2w/nitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the 02m,bn vty.mjmr b/h .three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find th/2rmb m,. vb y0nj.mhte electric field at the center of the square.

  Consider a square which is f )xu1x.rpwd3 o8p6rq 1.0 m on a side. Charges are placed 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).3r x owd r8x1.)pup6qf What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a chargg3li3p56 kwo ai)nvw+ brp /q) f0ck,be of 5.0 mC when it is placed in a uniform electric field. What is thw5 /3 i6cp)pn0fbq+blagko ikv) rw,3e magnitude of this electric field?

  A particle with a charge of 4.0 mC hngs)*/; yd 1wm3of qlnas 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 electric field of 6000 N/C popi2bdo 6 ym,h(inting downward. What charge must be placed on the ball for it to be suspendidmhpb6,2o( yed?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed ina mgt-;bvo pdh5-k mot1r8 x-1t(9 phcside a unhb9( tapvo1t-mhkgpt 1 85;do-xm-rc iform 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 carries a charge of +2.0 mCk- 0dnoicl 6wbqr58v *. What is the magnitude of the el kor-6qv0nc5i 8w*ldb ectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is th151im :z*zevb8vj0crq o xeq:e electric field 6.0 cm:qr1z*e 0c5e v8q 1 oxizmbjv: from the center of the sphere?