State the law of conservatio-aht4qe1 h8o bn of electric charge.

  Is it possible for two negative charges to attrx(d6c2emip6 nact each other?

  Is it possible for a positive and a negative charge to attract eac1m 3k; cpum3ne-n7sluh other?

  A glass rod is rubbed with a piece of silk. Duringmjb3 ldg (q-eo8 pb;2g the process the glass rod acquires a p8gboj lb2-d3 (mqep; gositive charge and the silk

  A proton carries a

  The model of the atom sh(hajvdi.;s- v-m*ebc ows a

  A neutral atom always 20 c9bzcp3-ru zbk sa-fy6k4 nhas

  An atom has more electronsyy7-e b5b 9mn- mf)mis than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are ref 3 8m/wvjaom4sxwi9f.errjw4 xw3/o9 mmfvsia .8ed to as

  Materials in which the electrons are bound 5xyw3uyf qtoc3/n r h8*vyi ,9very loosely to the nuclei and can move about freely within the material aryc9qu*ny/, t5hi 3r3o8wyvxfe referred to as

  A negatively charged rod is brought near one end of an uncharged metaj zxwky)j8 4:sn60be r3z3q x filuc9,l bar. The end of the metal bar fa xb,sikz6e nl y )0zw3qcu4 f3:rjxj98rthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphe3kv /5vm.oh b,ogw4f;xo)ewwre B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grou/)5vo ow ;3e m,kb.oh4v wwfgxnded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posyl ; tnrpp:83)ylm a6hqh1 ge5itively?

  An originally neutral electroscopei8y2*z p) ftsio5dz4 b is briefly touched with a positively charged glass rod. Tofi5t*z piz 8ysd4b) 2he electroscope

  An originally neutral electroscope is ground15jg v a2mkkg/ z0jkkg)8-dfirf/bz( ed briefly while a positively chargedgj2v/)- gkfrmz/8kb 0kik51fjz d( ga glass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutr3 ;wyl 8h62n0wg oeoixal electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch ith n2l i;g3o6yw8w xe0o. What happens to the leaves?

  A large negatively charged object is placed ywp4j m/ezh q(r rllf;16j0 m8on 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 ball touch the negative object. What is the final charg48zj6/ lr;pmye1fmhq( w0 lrje on each ball?

  Charge is

  What are the units of the Cji)a-ivrfby4oh i62l(g 82u s:oao k0 oulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Thetn9n .jcb pqbm20ery/wj7i *5 first charge is larger in magnitude thjq0w9 57brcn*y ej b/2. tpimnan the second charge.

  Sphere A carries a nety8 q2sh2+keiogi yw71 charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describe gkqi 7o1+2yhe2 8swyis the electrostatic force between them?

  Two charged objects attract each other if i r yoc+wm2;5i*cs*with a certain force. If the charges on both o* m;o i+ws*ciryi2 5fcbjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual at ,oq5yc 5g sc9knrn.r.tractive forces of F on eao9n.,rk cq r.55ncs ygch other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happeni*.xrxy ;/r fz ,-zojns to the force between them if one charge is doubled, the other charge is tripled, and the separation distance betwee fr x;/z.- nyr*jiozx,n 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 1.0 m. What hah/osyd 7j ai23ppens to the magnitude of the force on the protah2o y73 dis/jon if a second electron is placed next to the first electron?

  An electron and a pr6y 7k,c*g / yapq2bsdd;( eazboton are separated by a distance of 1.0 m. What happens to the magnitude o7(sk2 qb;y aagy p*b/c, d6zdef the force on 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.yfy 88 nmwzowc , +q d,bt2e)6+ryh4ql0 m. What happens to the size of the force on the proton if the electr6 ym+ 8 b4yzeqntcwwyo,8 ),hqd+r2flon is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at tjwb8ut k- 8x9fhe 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 ch89 j-fwkb8ut xarge at the center of the square?

  A point charge of +Q is placed at the1kru5vk7 r 9va7(z fsw a(cy (y+t,ful centroid 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 cha+rys(tv 9f1alvrz7u7 (a kf cu,wk(5yrge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vector?iur my ot8)w(8rfn/ f4

  At twice the distance from a point charge, the strebcn4-ldh,h,vr c0 fr2ngth of the electric field

  Is it possible to have a zero electric field value betweel*pe puc/e a8(d;b- ys0p 3lmhn a negative and positive charge along the line joining/*- l(c0pmudslh8p ypbe ;ea 3 the two charges?

  Is it possible to have a jk zd.agh)32vjm;h5 4gl7wa 3hr,juo zero electric field value between two positive charges along the line joining the two charges?;h ajrgu)k7 4 jaw2hz3.g3 odv,5ljmh

  Electric field lines near psitive pgly3-e a kc60koint charges

  The electric field showqlo ; dd6yjv8e0szo *8+vml2qn

  Can electric field lines intersect in free spagej38om9st m ;ce?

  A solid block of metal in electrostatic equilibrium is placed in a ur5r rs3i .oq7:9xwyq 3wq, vayniform electric field. Give a sta5o. rs ,wiwr3qvq 9r3ayy:x7 qtement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere0t 7kif6ke:ie; )j jwn of equal diameters are each given the same charge, the electric field (E) midway between the center and the surface ;)ej :knjkfit6 7wie0 is

  A cubic block of aluminum 4tqsbqs+ 3y:o -ufrvb4 d-kv9 rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning bqy4ku9s r4v+tf-vb:s- 3q od the charge on the block's top surface?

  If a conductor is in electrostatic eq-he/wudog p3( uilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spherf:f7vp )j ta+ue that is grounded. As c7t+j fvfup:)a ompared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static3 o on) a,/y)ig8tbpzkbp nazw5mu 025 equilibrium.

State Gauss's law.

  The charge carried by one electron i 2v, qx9jyffa,8/ vyokgc(( xws $e = -1.6 \times 10^{-19} \; C$. 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 protons cra.tau/)9eaaj ge .. than electrons does this pia... r )ajuaaecg/et9ece of plastic have?

  What is the charge on 1 kg of prot24am x( hxv8,s mplbe(ons?

  An atomic nucleus has a chs2f i9dlv/:ipom e,m6i:up 1. f8pigparge 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 a,bnud7t k-(pcfhaaxbe iv3 (7 s73. bof 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between theb .s 7a3it7 vchun d,f ebak-(ap3xb7(m?

  A 1.0-C charge is 15 m from a sen 0l f(k/m1bg copwo6nb3 :mk2cond charge, and the force between them is 1.0 N. What is the magnitude of the second cho2nw/nkfkmcg(1p3 bbl 06 :omarge?

  Two 1.0-C charges have a force betan(mz q;4gn1 n2jshl. ween them of 1.0 N. How far apart are they?

  The force between a shnt/eo6e*brk:.+ ay ra 87ws $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, init03vyzwdgf wp.l-y o5-9.nz 2rrfqud,ially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the el r2-qrzu pfv05y ww3.yf,-.9gn ldozdectric force between them?

  Three identical point charges of 2.0 mCr:my ty:;.tpx 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 directionr.m:pt;y: yx t 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 is place)r+b 1y+.gh tc am1yqyd 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 tb mytg1a++yy.r) qc 1hhe electrostatic force which acts on the charge at the origin?

  Three point charges are located at the follokcnkks ya:r 3qo w/ (p7k*tt)(wing 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 3*sy( k:kqc7(ko/atkn p w)rt is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a ul1lz /p- -jhlc/v.o -zw npu6square, and a second point charge of -Qnzlcz vu o-l./p lu-w /p6-1jh 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 mbz 48badd f(ypa hw :(i*u(eesk3yg:2, 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 fo: ( ( 38gd: efd*4yys paahew(kub2zbirce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); m+e 7.vfcia1qm e *2v*cz,eaq Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0) 1v2vafm*a +ee,eq c c*qmz7i.. What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of w8s8 36qn dwhey hhy3+eng7g(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 eleh838y6hw+ 7(e3qsgnwdhne g yctrostatic force which acts on any one of the charges?

  Consider point charges of +Q an:hmjq yv 0a.c5d +4Q, 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 such that the electrostatic force0jv5y ah:q.cm acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Wher8ba2;ehyj; pf e on the x- j f;;h2yaepb8axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placv ibmpg(w+/w y0.s9i f east:(ed at x = 2a. Where can a th.sbei a(tv/fgwimws+p (y:09 ird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 guk- ppm:9l7xc n g6 ((/kizqwr. 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 athvq ) i2 r-2mjc zrsat7*2an5ptraction of a fixed proton some dr2aa5)m chp q*z tnr-v 2i2js7istance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from az bxz* 665nlp1q jlgl1 common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until thelxzqj1nz56bl g1 p6*l 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 magnit gjlzc :b-.-m uvn1qx4ude of the electric field at a distance zj v 1n.qm-c-ugx:4lb of 1.0 m from the nucleus?

  What are the magnitude and dire2 gt5ubrm6qh +, 0gciiction of the electric field at a distance of 1.50 m from a 50.0-nC c6+0muiqgg,i2brt5 h c harge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudez 64ek rm2ta7wu/ 9;3v. cf ugdofxu5crzlw/3 of the electric field awx. a5/c uf u/ cdtzmw3; 6z4gvor7fr932ulekt the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. hp6 3,1pcv3m rn c e+ rv.vywa llk6u7ch-.hd; What is the direction of the elecdpnkw-+pmvhhcr veu.hlr c63.67c31v ,ya ;ltric field?

  A 5.0-C charge is 10 m from a lbx9 3 pm0zla+small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of thep+0l9 3x azbml test charge?

  Two point charges each have a valuerreoxz3z*b)6)i r l +c of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the tworlr+ xzrzie)o b36c)* charges?

  A 5.0-mC charge is placed at the 0 sb.d9 rt1r:o/o0kia e cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fier.ad9rosk:/bo0ti e 1 ld at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a 2mdq t8mqp5 d/;m7z04b9 aiolob ht;o-4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field z ;o db85aom4;9p bm qmtz/o7 thdqli20ero?

  Two point charges of +3.0 mC and -7.0 mC0rdsv+4 br:p sbu. g3a are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between them?abuds 4.rg +rsv:pb03

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. T/zh 1fyz( 8lbx*f bn5zhe last corner is occupied by a 1 x5hyzb8zz(f*n/ bl f-3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a .dyp d7/.pqrck ff.r/side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0fd d rk .p./7fpqrc/y. 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 ovja u:* iy-h5u2k;yidn a charge of 5.0 mC when it is placed in a uniform electric field. Whaivuy;52i-adh jk *y:ut is the magnitude of this electric field?

  A particle with a cha46 t m8rhiejt)rge 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 elect 9o4k/lw.m oeyric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be sus./o wmly o4ek9pended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placedudba6 ewjr ra1;ge/2+ inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric fielw/+er u2 g6 ara;j1edbd?

  A metal sphere of radius 10 cm e)8q j2-6bzq umsy2 npcarries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surup njz)bq26my-q2se8face?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elecyblwbm6:fn7 or) u0)b tric field 6.0 cm from the center of the sphere?ru :boylb7m )b0f6) nw