State the law of conseudanfe44 0l.j5kevmapp)a +x71 hf2 frvation of electric charge.

  Is it possible for two negative charges to attract eah*pc0 ikz 7x9 ;5tpulnch other?

  Is it possible for a o/t*+v0akpob qud.)upositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of si5ql53mghf / -38y sbjg/yrbs qmwc:7 ilk. During the process the glass rod acquifq/mw85 3j5r gcmq 7yg-sshl ib3:y/bres a positive charge and the silk

  A proton carries a

  The model of the atom show.cror8z/j7iy s a

  A neutral atom always hasz)qy7+xnaag.,t0 ch n

  An atom has more electrons q8+8hoenajhu9b q . -bthan protons. The atom is

  Materials in which the electrons are bound very tightly toltvrf /j:3(yx,oy) ra the nuclei are referred to asj: / at(oy,rxr) flv3y

  Materials in which the electrons are bound verh0vbfuw/)n * ty loosely to the nuclei and can move about freely within the material are referred to av/*utf 0n bw)hs

  A negatively charged rod is brought y/qgjliv +xrt--t+.fuh: v/2w m4 djlnear one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be charge f/r+q.ilj jthu/w:2 v xt-d4y-lg+mvd

  Sphere A carries a net positive charge, and sphere B is neutral. Thet:u c:bpheaif+o-e l mz6 )7g1y are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which state6galtch o1:ue+p -)zi7b:emf ment is correct?

  How can a negatively charged rod chh+ma 8sgrc+ 4kz ik( le:k13imarge an electroscope positively?

  An originally neutral electroscope is briefly t(wi1+y g gvbt5v rg g+.pow.w7ouched with a positively charged glass rod. bgi. wg+5o.yw 7pr (v gw1gtv+The electroscope

  An originally neutral electroscope is grounded briefly while a positively char(p2viv jht.-ia qry88 ged glass rod is held near it. After the glass rod is removed, the elecjp8hv. ivy-2i (qrta8troscope

  A positive object touches a neutral electroscope, and the leaves separate. ekjc+ 6l 5aw-k*pkffem1 b/s *Then a negative object is brought near the electroscope, but does not touch 1 f fsea5+ /kkk* cj-6epw*lbmit. What happens to the leaves?

  A large negatively charged objectp2+zn( xc3gt n h+bfo7 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 bcnn +2p (+ tzfogx3h7path 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 Coulomb constante0xb 0isyk tgsr5:u bxy;05q ) $k$, which appears in Coulomb's law?

  Two charged objects are separated by a dis9 a(d7u6 kq6trky0 (x6 dzhvoctance d. The first charge is larger in magnituddtckkr 69q 0dy ov6hxua 7(6z(e than the second charge.

  Sphere A carries a net charge and sphere B is neutral. Thuob3pyd 5 re 9i3/wyo(ey are placed near each other on an insulated table. Which statemen o5 oepuir3 dyw9/by(3t best describes the electrostatic force between them?

  Two charged objects attrac5(jrp g q7em1 3ycj ocn5p6(tht each other with a certain force. If the charges on both o5g cn5pe j6pcj71m3 o((qtyrh bjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces o0*ugjolel9d m c1+f il2:ww-8 ps zg)mf F on each other. If the chargescfm wige d)ls21pj9o m: +*z0l-lguw8 are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other wj1c8-h 60;65 34 .tdnb nrxbi3 zmkgchgywoqtith a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance bet g5h40mj cnn1qod 3z3rt hcx6y6.;wbk tg8i- bween their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a prot9hr o64df9cm s qkk.o2v 5mn)mon are separated by a distance of 1.0 m. What happens to the magnitude of the force on the pro6d9 2h9rm4cksfn ) ov 5mqmk.oton if a second electron is placed next to the first electron?

  An electron and a proton are separatec/gkt c)bc::gyn, 8u vd by a distance of 1.0 m. What happens to the magnitude of the force on the first electron ik:cgu/n )yc tb:8gc,vf a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Whah03xzz(mrqna/g . (oq.3jw; exev nw1 t happens to the size of the force on the proton if the electron is movh..j0;(qz3/(gx z n rw3xeqe an m1woved 0.50 m closer to the proton?

  A point charge of +Q is placed at the ce hys3mr) nhkj j9 uqm,r.+t3g+nter 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 chargegr 9y +,nmhh)3tjsrmu+3jq. k s 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 square?

  A point charge of +Q is placed at the centroid of an equilateral triangl-6+ )kvce.,pbd93j zk7da i rbu1agtpe. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.p6 ztua.+ gv)r9kjpk,ce3ia db 71db-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 vpe w 0vcwvm tx7,t r*4x8x3f)oector?

  At twice the distance from a point charge, the strength of the electric )u/et4p r+95ef5mxk+vgh )v 1kfotzkfield

  Is it possible to have a zeror k7v1 lm4c;3b;opq;pp bww wl/zf/x5 electric field value between a negative and positive charge along the line joining the tl4/7xm; p; bwrq 3w5 pfo1vkw;bl /cpzwo charges?

  Is it possible to have a zero electric field value between two positive c-mp 6a (g(jexl8sy j1iharges along the line1y6j x-(8psma (iglej joining the two charges?

  Electric field lines near psitivoe:t6:;dg dbs 8uycqwp(59 mje point charges

  The electric field show. nx+xko4g/af n

  Can electric field lines int l*ro2rkip8l5ersect in free space?

  A solid block of metal in electrostati8(q 2a( s(50yy nvbd.a1v qvyrbkbw;qc equilibrium is placed in a uniform electric fiel(y5rbwnv q81as qvq(ky abdvby(. 2;0 d. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphe9wlsfn;2rc +z-1kj sl re of equal diameters are each given the same charge, the electrnc2 swj;l1 s lrz-+9fkic field (E) midway between the center and the surface is

  A cubic block of aluminum rests on ar40kwv2 or 2d5 jw,zca wooden table in a region where a uniform electric field is directe,r4kd vwo5z0 crwa22 jd straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near;j 0t2(ieafsx an electric charge

  A positive point charge is enclofx0 -ruv)xnw .73qu-m rnwe1g sed in a hollow metallic sphere that is grounded. As compared to the case w0r e w-3wx.vmu)ng xr-fn7 q1uithout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in st uxu:xbk jz+:o r8*8baxz +v/eatic equilibrium.

State Gauss's law.

  The charge carried by one elec *tvu1npa f54ctron 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 prwnf vd.m5l: *sotons than electr*nlw f:ds .vm5ons does this piece of plastic have?

  What is the charge on 1 kg oh8 vy-sjn g,;v5q:kje-un v -qf protons?

  An atomic nucleus has a chazv9qy2z wno2+ x qxm2/rge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated;n73i(f thfcx by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between them?i f(7 hftnx3c;

  A 1.0-C charge is 15 m from a second charge, and th zd1tbwe 9zphq;st;, +e force between them is 1.0 N. What is the magnitude of+z et1b ,t;q z9sdwhp; the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far appq0os -g+:uozk r99vh art are they?

  The force between a 7 xnjpwyn+ n*52-cokl $30 \; mC$ 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 1.0j jdsev ;*se), 4fji.s-N force. If they are moved to a new separafjsd4;.s* vj j,e)isetion of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis0qlasak0 svv i,ym977-gm/i q . The first charge mi,qqsgvy9vk7/ l70msa0 - iais 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 charnfyd-2b/ 5cyt a l*z6tge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, ztt-f bc62yya /5nd*land +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 cm.t6 5rie3b n,u,qmdp ox1(w2z. y poat the following 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 3po(y,2o. 1u mcn.5,pbmq xt3d 6w ierz.00-mC charge?

  A point charge of +Q is placed at the center of a square, and7zdeor ig5f45 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 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 ag5 7oe5i f4drzt the lower-left corner?

  Q1 = 6.0 nC is at (0.30ujyfscr.4+p iqc, dl*a./ oe5 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net f+r5dia. f, e juscqcy.o /p4l*orce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0);bd ;qd.v t3j+j Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net f.j;3vtjb dq+dorce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of +;j g+5xcwiit an equilateral triangle which measures 30 cm on a side. What is the magnitude +iw;xjgct +5iof the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 mwm(zc2q )7i n(wnxxx d(3nef( . At what point, on a line between the two charges, would it be nxzew7 nx(iq c(m2fw(3(d)n x 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 origin and ao 0kw5kjum1n mfq4(n, rqm443 ceofv8 +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be plac 4,vfe qnu3oq4fmk1w mrc0(k5o48n j med so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = ofg(v0e;otv.,of89o q kju pg-z1.cohcy g /32a. Where can a third positive choj-yzo o1fc 3. (g 09guooqc8h;e/vv kg.,p ftarge +q be placed so that the force on it is zero?

  A copper penny has a mky.rkb1n 0za2u a cu10ass of 3.0 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 of gravity byx o2j4trku+2l ry1t0t the attraction of a fixed proton some distancr2u 0 tjy1+t4lo trkx2e above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noah 1cd-.vc d2bepit:.nconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until thebt1.. d e-c2cph:dv ia angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. Wha i ,,p.qy pflvhaqc163t is the magnitude of the electric field at a distance of 1.0 m from3 cq,hpa.6lv i,p1yfq the nucleus?

  What are the magnitude and direction of the electri hyj*w3i (*nbuc field at a distance of 1.50 w*( b*nhj3yu im from a 50.0-nC charge?

  A 5.0-C charge is 10 w1gxia ;7c nue-m3uond+v+r7 m from a small test charge. What is the magnitude of the electric field at the l7vcx+ u 3e 1nr g-minu+wod7a;ocation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction oc9jwe et /r;*p8z(j6x h0ki fmf the electric field?wr the*zem p(9/i6kxj8cf0;j

  A 5.0-C charge is 10 m from a s97 hk,zt pet/grz95j(dqnl.d mall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the loca99 / 7etzzp,k r lnqh5(gdt.djtion of the test charge?

  Two point charges each have a value of 3.0 C a *cyb 0v .22ojcqcij4rnd are separated by a distance of 4.0 m. What is the electric fijr i2ovy4c* 2qc.b j0celd at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mar7g1rcyl *mxpcck4:o , k of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. omlxcy,c4:kpc1 *r7g What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placedue w6i elo:-: xa89dp 9qjqit6 at 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 a line joining thqw6xp 6u:9d eti9-8i:qjloae e two charges is the electric field zero?

  Two point charges of +3.0 mC and w7x5wj9h g0g jy9mc s3-7.0 mC are placed at x = 0 and x = 0.20 m. What is theys07g x9j hm3c wjw9g5 magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of at(0 (a5y8 z+8jf svlc1zil ylmo4hc :r square of side 0.50 m. The last corner is occupied by a -3.0 mzc8cv(0ozy+llyah 45rf 1j(lsti :8 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on aac1 1nutgo:0k side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 1t10g unc:okamC 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.k d99aavxe + 6o1hj:yj0 mC when it is placed in a uniform electric field. What is the magnitude of this electric9xhe+ a1jj k6o9av yd: field?

  A particle with a charge ofzb (bsc:k0:s m 4.0 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 mass 0.120 g is pl)f:t xkjvn)6.f2uzb b aced in an electric field of 6000 N/C pointing downward. What charge must be placed on the balnvfz:jx2 6) bktb.) ufl for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.04,ca*-d nodlj/ bugs :n:mf 7rz(z 5bw0 nC. The ball is placed insnj d/:mb dz (:a*zl-c, u4fgnrb5o7wside a uniform 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 mC. cpo hn0nqn,q)*ajwcs8m 2 1 r7 What is the magnitude of the 8 ,sjr1 an2*hc0nomqc7pq)w nelectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 ms:ds wvwd**e5oq b+z7C. What is the electric fieldo7sb dwwsqz+5** e:vd 6.0 cm from the center of the sphere?