State the law of conservation of el.y+p3aanz64rebyf -aectric charge.

  Is it possible for two negative *y-j yq5mi ml(charges to attract each other?

  Is it possible for a positive and a negative charge to attract each other7tyvr *at3ovi*/ -pxw?

  A glass rod is rubbed withm k d);q zek9jb10nrj9 a piece of silk. During the process the glass rod acquires a p9zqbj 0dk1;m j9kre)n ositive charge and the silk

  A proton carries a

  The model of the atom s0c t.p 1hq+lfihows a

  A neutral atom always hasylvh2 t //1yan

  An atom has more electrons t eo8rqhx3swj 7fy/7;bhan protons. The atom is

  Materials in which the electrons are bound very tightly to the nucl 3ezpnirrp85 3ei are referred to as3p5 i8prrz ne3

  Materials in which the electrons are bound very loosely to the nuclei ad2 swa,3u0k37ju cqland can move about freely within 3j,a d 70u3uc2aqkwls the material are referred to as

  A negatively charged rod is brod :hx0lsmf0 p(r p:0rought near one end of an uncharged metal bar. The end of the meta0f0xpp(r:0mro d l: hsl bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge,00:kfb)k zq6p 7a)ft:qmhgnz and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched wit6n)bt:)g0 7qhkk0:ff azq zm ph a wire that is grounded. Which statement is correct?

  How can a negatively charged+ 5bidau l5e;,qp4jqj rod charge an electroscope positively?

  An originally neutral electroscope is briefly2a4i7jl+f0u20lqm hvy: zfi h touched with a positively charged glass rod. The elecl4+2 la0fu2 0 hjviy7qi :fzhmtroscope

  An originally neutral electroscope is grounded briefly while a l-qeg,yd ag5e x3ut*7 positively charged glass rod is held near it. Afteyd3q ea* xgge-lu,t75 r the glass rod is removed, the electroscope

  A positive object touches a neutral s3h:5ym9+4dzyu 1lxzguqh :n electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the lqy:h+ s z 5913gumyzl :4hdunxeaves?

  A large negatively charged object is placed onh(. tjk*gorr 0 an insulated table. A neutral metallic ball rolls straight toward the o gk(oj r.0*rhtbject, 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 Coulomb aho .g:vkyl:58jkc l-constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largeqftit -god*ebp2 6f8v *5 qnv.r in magnitude than the second charge. 2b.8ndvoqt * f*v- 6qtg5iepf

  Sphere A carries a necju-u 0rbt 4/nt charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between th4c0b uur/tnj- em?

  Two charged objects attract each other with a cf7xc+q x(dq0l qvh(k:nyo4hs0. e8 r4 )cezi kertain force. If the charges on both objects are doubled with no change in separation,e80 : 7d(k.+k s(qc nflxh4zyh0x ecq oi)4vrq the force between them

  Two charges are separated by a distance d and exert mutual x:6d0dkqu ha9attractive forces of F on each other. If the charges are separated by a distance of d/3, kdd 9xu:6 qh0awhat are the new mutual forces?

  Two charged objects attract each other with a force F. Whlmy av996npnn; 0w1 c :eb(ubaat happens 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 value? 6yvcnaeb na0blw;9 p: 1m9un ( The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. Whal3fl +6apnlsxg-(qn ;t happens to the magnitude of the force on the proton +apnx(l f3 ;qgn-l l6sif a second electron is placed next to the first electron?

  An electron and a proton are separated by a distancelzn.*2 ng ffa) of 1.0 m. What happens to the magnitude of the force on the first electron if a az2. *) lnngffsecond electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What r z/:19+djr zi+lt+7zy mlxcjhappens to the size of the force on the prot9 xcj:r+jml1zz y+i+rl7z td/ on if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a shs a/hb7f2k6xhc d0 i0econd 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 charkcx/h20b0hhd6aif s7 ge at the center of the square?

  A point charge of +Q is placed at the centrfpuy 1 2q*ngv:oid of 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 center c1uf*n g y2vqp:harge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is5w4gyv rhvfh,..+q n w not a vector?

  At twice the distance from a point charge, the stre kwgp:/gw )e) p-drt/vngth of the electric field

  Is it possible to have a zero electric field value between a negative and po4ix8+qa r0ts usitive charge along the line joining the t+ 8iqua4tsx0rwo charges?

  Is it possible to have l(49ld a; htzqa zero electric field value between two positive charges along the line jo9qh;ltlzd ( a4ining the two charges?

  Electric field lines near psitiv9sy9akfh7h i 35jaz*be point charges

  The electric field shownd rs8 1hfvkbg8ci 80s3

  Can electric field lines intersect in fz12. feh8rtal ree space?

  A solid block of metal in electrqb- njirq 7a1oim9) y/ostatic equilibrium is placed in a uniform electric field. Give a statement concerning mq)qj o i71nb9 r-/aiythe electric field in the block's interior.

  If a solid metal sphere and a holaq07sw s43/e ld8epgzlow metal sphere of equal diameters are each given the same charge, thels/4gqde 03psza7we 8 electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a2ovh7xei*, ue region where a uniform electric field is directed straight upward. Whatxiu7ve ,2 oh*e can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic ebzn--qg l; *pxquilibrium near an electric charge

  A positive point charge is enclos3l+ c0pwe tf3sed in a hollow metallic sphere that is grounded. As compared to ts3wlf ec+30pthe case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of condum,p fi;sql, 7yctors in static equilibrium.

State Gauss's law.

  The charge carried by one electro h :s*,(pz t4qqhibv7qn 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 0r96 r- j-c ;npsackiiprotons than electrons does this p i9rpr-n0ia-c scjk 6;iece of plastic have?

  What is the charge on 1 kg 5+g3s2fp ih uzof protons?

  An atomic nucleus has a charg )arreh7wg-.se 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 1kjxu ihkepw*3 m: o .g-o4rg0of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force g wi4kjr ook*h-mxu g:e13p .0between them?

  A 1.0-C charge is 15 m from a second chargei6pb.uu3avcw nv i a,(/+b jq), and the force between them is 1.0 N. What is the magnajcu n6b/a 3+uv. wq)(ipvi,bitude of the second charge?

  Two 1.0-C charges have a force betweenv;sl 9(wv h weo2ueu)5 them of 1.0 N. How far apart are they?

  The force between a df2k 5xz 6k7+)pf )/grsslshn$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, ex; 2ig:g9m:wbey+jv euperience a 1.0-N force. If they are moved to a new separation of 8.0 cm, wha9v;y2i +w:jugm : ebegt is the electric force between them?

  Three identical point charges of 2.0 mC3 u q)o01r8yr x-m )s9b sy vrcvmb7ij13b1lgs 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 force which acts on the char yv8xru1-9byb713vjs)m c)1roms 0s glq3b i rge at the origin?

  Three point charges are placed on theow+(drp dc ,o*p:jdf 7 x-axis. A charge of +2.0 mC 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 di7,wco: (*pdd of pdr+jrection of the electrostatic force which acts on the charge at the origin?

  Three point charges are tutx+ zs- i0*)9jfarzlocated at 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 maziu0a-f xt+9stjr*) zgnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the ce,)mj .fe7p/aenymt o 1nter 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 positive charge at the center. What is the magnitude of the force that acts o .ymfa1 n, e)pjome/t7n 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 0czt m 7t r7awhx22k1pat (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of tp1 mz7kta 22r70whct xhe net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0m,pds)b9 sg6n wl04gy8jppe+sw2 e0m .30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the n p+mwsj2ws e6l9,8mpeps 0 g4gy0b) dnet force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placep qm5 c/fqk4*ed at the vertices of an equilateral triangle which measures 30 cm on a side. What is4 kp5feq/qc* m the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and rz05b:g,+simvwn/ x/am g7fr +4Q, which are separated by 3.0 m. At what point, on m0n/ ax+vr:5iz r,gsbw / gfm7a line between the two 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 or zc kq6qbra 7wp2:49kiigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placeqp62b7iw zqakc :kr94d so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is plaidj/m 0lxa5 a9p7xq0 (d).wgqy0op ve :j;jcf ced at x = 2a. Where can a third positive charge +q be placed so that the fojpyld)pcivjx fd;.gm a7:j 0(5qqo0 /x 09ea wrce on it is zero?

  A copper penny has a mass of 3.0 g. A tot f:fmnof245b3me7 wggal 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 g;-bn1oo eeyqyu *53sjravity by the attraction of a fixed proton some ;3eqn-sboo yy 1euj*5distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by )vi/ pz4eac. vnonconducting threads which are 30 cm long. Both are given identical char zv4.ai )ve/pcges, 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 r;1ux6 cevq/kzt+r9o of +40e. What is the magnitude of the electric field at a distance of 1.0 m from thtkzo/r+ce 6 ;vx1rq 9ue nucleus?

  What are the magnitude and directyu3 iyzbh-dvfp **j o3v, 1 z2mp9e,ocion of the electric field at a distance of 1.50 m from a 50.0-nC chai933 p,ybpvc*,y o1hzv mz- *e2fo udjrge?

  A 5.0-C charge is 10 m from a small test chargeeov02r ;ry c5u. What is the magnitude of the electric fielvruy5cre2 o; 0d at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction o4 ozb-:yg,hx c 2btul6 6-atzdf the electribgo,4ay62dzu: ct6tzx l-h- bc field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude:6 yfimd /k+9a7jm nm7r)pegw of the force experienced by a 1.0 nC charge placed at the location ofmer :) ymampnfjiw +/d77g9k6 the test charge?

  Two point charges each have a value of 3xog*r: xj/5ha .0 C and are separated by a distance of 4.0 m. What is the electric field at a point midwayhx/x* 5aog:j r between the two charges?

  A 5.0-mC charge is placed at the 0 cmog4 2:om dxj* jtwn ji(h+j8l5 mark of a meter stick and a -4.0 mC charge is placed at the jj:4xnwd2(tigo8+ 5oh mj l j*50 cm mark. 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 stick and a -4. on9)jcim49:ktpt7rfygv / 2u 0 mC charge is placed at the 50 cm mark. At what point on a line j/ vitu2r99ktc) jmfpn7:4y gooining the two charges is the electric field zero?

  Two point charges of +3.0 ) wm/o-.3 st mqza.i.n jdd/lfysf65pmC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fty.- 3pffsm5.)i do/wzd/mj a.sl6qn ield at the point midway between them?

  Three 3.0 mC charges are at the thr) v;xvo.kp 64kpeq*dlee corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charg6k pv ;*ovl.)qpkxd4ee. Find the electric field at the center of the square.

  Consider a square which is 1.0(q;l+odey ls+ 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). What is the magnitude of the electric field at the square'slo ly+(+e;qds center?

  A force of 10 N acts on a cch5+*qcecv :*b z euq)harge of 5.0 mC when it is placed in a uniform electric field. What is chc ze**cq5qu:)evb+ the magnitude of this electric field?

  A particle with a charge r+zm,z tuap 5,of 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 placed in an eo r)5zsk1vc7d-se:l4onqgj ( lectric field of 6000 N/C pointing downward. What charge must be placed on the ba1e-(5 :o k7 vsr4lj szdcgnqo)ll for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plaf3oo wvx :1o 3tk:mo87rxzxc1 ced inside a uniform electric field, and is suspended against the force of gravity. What are thzormw:1o kx178t :3cvoof3 x xe magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. Wh8/ldhh9,yii fat is the magnitude of the electric f 8lfy ,hhdi9/iield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chargxzal -d7i6hp7e of 3.0 mC. What is the electric field 6.0 cm from the center of the sli pxza67d7-hphere?