State the law of conservation of electricdhedc a2 wb fx -13gqm9ma3 :bns1m-u: charge.

  Is it possible for two8)u8 r.b 5t m9kcaau)afjr vy1 negative charges to attract each other?

  Is it possible for a positive and a negative charge to attracttsd1.hrt-ox6 /x3e fk each other?

  A glass rod is rubbed with a piece of silk. During the prd6z*j w1 8yw6supnc l4 we/ut*kb95siocess the glass rod acquires a positive charge andyunt6w ud isb86 9 *lz/ecp4jsww1k5 * the silk

  A proton carries a

  The model of the atoa.8 qf:/ehv x1eaj u+tm shows a

  A neutral atom always0:02sw8iq 4ofwg tztq has

  An atom has more electrons than protonf2b 14mq;esrj 6x scx;s. The atom is

  Materials in which the electrons a kn:vfvs,y2+ oz .;aywre bound very tightly to the nuclei are referred ts2ov+, ;y : nk.azfvywo as

  Materials in which the elect8 sto44o .6u nw1qyhudrons are bound very loosely to the nuclei and can move about freely within the mahso uwqu68y414n .dot terial are referred to as

  A negatively charged rod is brought near one end of an uncharged m2m :f10tp5hessjf zw y2t1b2xetal bar. The end of the met t:tzw ejbsffsp150212xm h2 yal bar farthest from the charged rod will be charged

  Sphere A carries a net positive chargvcidb 3 k (i7p0n*zj,olvrt (-e, and sphere B is neutral. They are placed near each other on a,i7cbz*3kvjlvr(ndp to - (i0n insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscopedgw1m3,/xk,vcgs )p g positively?

  An originally neutral electroscope is briefly touched wit1og1t 9p v vv5asq* .lg)md.hgh a positively charged glass rod. The electroscopev 5 ..*tm so1dglpggv1a9vq )h

  An originally neutral electroscope is grounded brieflyb3dv )m :lyrg, while a positively charged glass rod is dr 3yb) l:gm,vheld near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral elelf+ z87rp3y jvctroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens toy7vl r +p8fjz3 the leaves?

  A large negatively charged object is placed on an infnd7 rw2me 8* z,cyg1isulated 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 win7z yfc,8 12d*rmg enegative 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 const7 x 5)hyexksl4ant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larg96da5 vp)5c3c3cacldgx1 c mqk7,tqx er in magnitx55aa7,9vkc)qp qcmd3 cctdc g lx316ude than the second charge.

  Sphere A carries a net charge and sphere B isk 5se;ek6a hc. neutral. They are placed near each other on an insulated table. Which statement best5;eakkh 6 sce. describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges ongawnf6fa 2p d7p-0 az( both objects are doubled with no change in separation, the force betwepzfa6(dn g a0-aw2p 7fen them

  Two charges are separated by a distance d and exert mutu30 n,3fvkp2pyfzm*wtv1 txxf4 s+f ; cal attractive forces of F on each other. If the charges are separated by a distance omskf3;cv 0p3tnfz p w1vx24x+*tf fy ,f d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Wh. avv+r c6llg(at happens to the force between them if one charge is doubled, the other charge is tripled, and the separation disl+vrcva 6 l(g.tance between 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 d9t)d azy x ,mh;5j(he0ewf: gyl:.ddjistance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first elec5ydh)tw9y.xj ;j( 0 mal d:hfzg,e: edtron?

  An electron and a proton are separated by a distance of 1.xhdz;f s 98-xr ne5:fc0 m. What happens to the magnitude of the force on the first electron ifczr-fsh fx58 en9:dx ; a second electron is placed next to the proton?

  An electron and a proton are separated by a distmu43e;m x/dsq+:jzf f f 1b6;et0f +r loem9epance of 1.0 m. What happens to the size of the force on the proton if the electron is 3lm0 e/zmsr;ex6efe9dfuoq:p +4fj+ fmb t; 1moved 0.50 m closer to the proton?

  A point charge of +Q 1cp8(cubdr o1is placed at 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 -Qcu(pbd11 rc8o 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 equi7k i8n x 9glkyvz:k v966pz9nblateral 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:9n8 v7gnzbl66k9kx9 p vyzik 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 isgr-jf+ck+fl (7evg ) h not a vector?

  At twice the distance from a point charge, the strealx ht+u gjb-6rl;fcg0/rvl+0 8t g5xngth of the electric field

  Is it possible to have a zero electric field value between a negative and p 1sv gcxw0bzj9j *-;ayositive ch 1gwy0cjb9j ;sazx-v* arge along the line joining the two charges?

  Is it possible to have a zero electric field value between twoeh )vep;-e4fdf2* ke u positive charges along the line joe;*vp )e uhf24ee-fdk ining the two charges?

  Electric field lines near psitive point ch5mas )n7hs hvu,tcd:qv* af-*up:i i,arges

  The electric field s5lw;b3d5qni gp2* ( dnbmco0ohown

  Can electric field lqxad00ycjqj72x6 6d5y wz pi8 ines intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a vvs ( z.:6wxvwuniform electric field. Give a statementv6 ww zvvs:(x. concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal dia fmp/wln(w//(xl 3w5 o9ixftj meters are each given the same charge, the electric field (E) midway between the i/((35wlp/ /wnxx o9ljw mtffcenter and the surface is

  A cubic block of alumi g+ c;w)n 7ty0,fuivhlnum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the vn,thcigy0+;)w7l uf block's top surface?

  If a conductor is in electrostatic equilibrium near an electriaq (o7e9h9szcjgsp4 0c charge

  A positive point char kpu7h 5e.n.xjge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without tk.np.uhx57j ehe hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conducahvgmhcd+9el0r1/an3:w * l ctors in static equilibrium.

State Gauss's law.

  The charge carried by one electron q .iu: vyv*;b-3f ggawis $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net chargep; 7zrkud6-q * vmmd0m of +2.00 mC. How many more protons than electrons does this - ;v0mmz7qk mu*pd rd6piece of plastic have?

  What is the charge on 1 kg of 8nk 07+umos 0dugi 73w sesbr9protons?

  An atomic nucleus has a cha5pl-f rl5 m/hyrge 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 2:2:agvb3rqzo 6zkdf )il-o-yr3u bn) .0 and -4.0 mC, respectively. ba-r)oz zfr d)3-2 6b yn:vqkgu3o:i lWhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second h:gjf e9t tfh)cb1h.i+w s0te x4n0m-charge, and the force between them is 1.0 N. What is the magnitude of the secow.- t hbs 0mj fexctg940nei)h+h1f :tnd charge?

  Two 1.0-C charges have a force between them of 1.0 N.,q vohv4ic:lov+ev4 1 How far apart are they?

  The force between a 2jmtn 5ovl -8x$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, iza4 2 jt vek0,*)lr yj-x;gvotnitially 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 el0*o 4tvyla,2-v)g txej ;rj kzectric force between them?

  Three identical point charges of 2.0 mC are p-hkne2 8w656xhn gs l ;lqq)rwlaced 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 kg-rw5s )nhw; nexl8lq2 q6 6hforce which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charf;l (ji*h -dcg v3u-xxge 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 direction of the electrostatic force which acts on t(3iuj cvhf*x-lg x;- dhe charge at the origin?

  Three point charges as bt0am a8gypt3nw71)8y gv 6cre located 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 magnitude of the force on the 3.00-m7ayv1a8w6cbgm8tsg y tp3n) 0 C charge?

  A point charge of +Q is placed at the center of a square, and ,fg/+h4ekrq ag49nza 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 fa/k, zar+qe 4g9h4ngof -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 m); Q3 = 5.0 nnv5c0:r n mlvfxt2b 4;C is at (0, cnv 5tr4v: b lnf0mx2;0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); pcv8n,hhdw)88dh8xfacyjj )a 08 z (mQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nCd80 8vz xy(wcaf8jachdhh p)jm) ,n88 charge?

  Three identical charges of 3.0 mC are placed at the vertices obocd, 3m. /znif an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elec. /3znb ,imdoctrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At xh.tl , )/aje7cqj 0(vx etul,what point, on a line between the two charges, would it be possible to place a charge of -Q such that the ele .ah(ev0qujjx )tlltc/,ex7, ctrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is,)j)ki fix;j ru+w isf9)pf4h at x = 4.0 m. Where on the x-axis can a third charge be hi;k) s9 +f) fwirf,4j)xpuijplaced so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. isv 7f2 /+zv:xf+tild Where can :flstf7 ivx z++/2 idva third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tot6f3vs;jxmh/ u al 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 theem+j hkg2 a.eplb8v nu ;8/h1n av.z;q force of gravity by the attraction of a fixed proton some distance above it. How far above the electr+h;gvb. zlupq8n8n./eke2a aj h;v1 mon is the proton?

  Two 0.20-g metal spheres are hung from a common point by n hdv;5ph;p(c,z.0d86o nxwwe*sf km tonconducting threads which are 30 cm,t(zc* henks o;6p.df;5pd mhw xw0v8 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 is the magnitude of ;:exrm +vb1m7j4y93l cdqs hnthe electric field at am7vn l: c;1qd+4 se jb3xrhym9 distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the elbmw:im+t2tde,9g1wxj r,w f-ectric field at a distance of 1.50 m jfr+w 1 wdtmw:-mx2,eit9b,gfrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small te mk1w/ecjdxobci2,4)o *j9y vst charge. What is the magnitude of the electric field at the lo xij9b1e*v) d,4k2ccjoo/wmy cation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What6e2 y a7chaq9b:kvml3 is the direction of the eleclq6 a:y9v7mc 2ab3khetric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thetfpt -upi-6: a k0/uog force experienced by a 1.0 nC charge placed at the location of t /pu:au p6-tt-gf0o ikhe test charge?

  Two point charges each have a value of 3.0 C and hm5.gaxdds)q8 x y j6,are separated by a distance of 4.0 m. .56yhqs,)dmax x8 jd gWhat is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick s3uquc +uv +8gand a -4.0 mC charge is placed at the 50 cm mark. q+8 +3gsvuucu What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mete3h d56uic, a)isrg(lv hpo)o;r stick and a -4.0 mC charge is placedo rgoh csia;u(63pli, )5hv )d at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges oftb0ecw jf1 y 7;3)xrph +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitu)0 tyefx;b3 jh7wrp1cde of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a ns)ouy0 iz vgh wa-p)3pf2k.(square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the sq)k oywp)u2nv( af3pz -sg. hi0uare.

  Consider a square which is 1.0 c;5 .aet - (jzcd)2q*lvss9avf9tgbcm on a side. Charges are placed at the corners of the square as follows: +4.0 mC ata f(l -csv9)t5t *sj v.a9zgq2bedcc; (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 yi zbooojg166 h6hz+ g+oz oa)w-h6m+ of 5.0 mC when it is placed in a uniform electric field. What is the magnitudbz1zoi-o+h6hm 6h6 y jow6a+zo )ogg +e of this electric field?

  A particle with a charge of 4.0 mC has a u*beovynkyu 2+l+5d 5 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 fielde 4x;aq7a*zq l of 6000 N/C pointing downward. What charge must be placed on the balqla4a z7qe;*x l for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plactm(q(xi)ygf1:yz l2r ed inside a uniform electric field, and is susz(1 2ylf itygm(xrq):pended 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. What is/41 zpc m idg(d9kjym7 the magnitude of the electric field 5.0dg (ijz/pk7y4dmc 1m 9 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What ift/k7oimh54gs 2gu* zs the electric field 6.0 cm from thsu*zkgg4mh/o 7f5it 2e center of the sphere?