State the law of conservation of electri y8d+-x5c4v u)zd vvoqc charge.

  Is it possible for two negative charges to attract each ot)zqnahx),panh1pw(o.n k +- mher?

  Is it possible for a positive and a negative charge ti+h e6c uka8ewxo(9p .o attract each other?

  A glass rod is rubbed with a piece ofjji 5. tupz68c,cxn6e silk. During the process the glass rod acquires a positive charge an 6, 58epntzujc6c xij.d the silk

  A proton carries a

  The model of the atom shon2 0ya(x j:kpiws a

  A neutral atom always huzoh;r,9o+z hu4 ,w+ky luh+was

  An atom has more electrons than protons. b+0 8pivuis:, yqezp0The atom is

  Materials in which the electrons 2+umpq3lp:sd 5g-hs dare bound very tightly to the nuclei are referred to 3pud+2: l 5ssp-gdqmhas

  Materials in which the electrons are bound very l6bu,uw)courcwiw. c,61z,o n ,q( ct5 kvgxu2oosely to the nuclei and can move about freely within the materiaw,uc i1b w(2z c6ko )q5c,uxtu6,nc. uvwor,gl are referred to as

  A negatively charged rod is brought near one end of an unchargj76g qj, *ljzied metal bar. The end of the metal bar farthest frojg*j q6zil 7,jm the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They .7oo m ela)t(ed ;ao7yare placed near each other on an insulated table. Sphere B is brl7e7;e aom ( td.yoo)aiefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posxjwqg-mk6 j2l/ v- ,jzitively?

  An originally neutral electroscope is briefly toucpoc+qb wq9w(i5fv vv0b7-ghhlz-,; fhed with a positively charged glass rod. Th0-wh(,h-c9 +;i5gv oq bf7lw vzpq vfbe electroscope

  An originally neutral electroscope is grounded briefly while a positively char4z;5y 3 mfneyh-qu/elged glass rod ;/qz5e u4ef - n3lyymhis held near it. After the glass rod is removed, the electroscope

  A positive object touches a 6q8 peyr(v i/uneutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the le8/ieqypv u6(r aves?

  A large negatively charged object is placed on an insulated t+ 0 -xy3ylb*vk 09.nzufx ahll6wq5rcable. 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 sto y*nlvzx-q xhb.9wc 6fl5rl ukay0+ 03ps. 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 constanr.r /k.m* pwg1z4j ; j pbia3sf-kkhh*t $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lsi)z a2 l3v otvrq;m9:arger in magnitutl)q9vmsa rov;3z : 2ide than the second charge.

  Sphere A carries a net charge and sphere B is tsgyuzujbgee,) 3 6/gnfj;9 )neutral. They are placed near each other on an insulated table. Which stat uyzjg3/ u;etne,) gg6j b9fs)ement best describes the electrostatic force between them?

  Two charged objects attrac 8h rc/10hw8silvqeua*8 k8c:6m fp qlt each other with a certain force. If the charges on both objects are douc1w0mp8 sr8qqil / 8u* :ahhe6cfvlk8bled with no change in separation, the force between them

  Two charges are separated by afl ca xg zf/ 347,s(3camsak9t distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, wha gkast,s za94l (x3 a73ccmf/ft are the new mutual forces?

  Two charged objects attract each ot eywpgs,fo+/txj5j8lx 9ymnb / go(1.her with a force F. What happens to the force between them if one charge is doubled, the other charge l/yxj1 o9/g,gjno8 5emt.y+(sxfb pwis tripled, and the separation distance 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 distance of 1.0 m. What happens t-7cbge f5jl +io the magnitude of the force on the p 5bfl cgej+i7-roton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What ityf) tcp,8 f3 k6erj6happens to the magnitude oc6jrpt6kiye8t )ff3 ,f the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated ue f75)rz*, e6l ur,uj- uitrtby a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the pu7e )lrt,eu z*5 uurrf,i-j t6roton?

  A point charge of +Q is placed at the center of a square. When a seconh :; t+x3-yd)fu9)j1ygvlvblw 6y wne, y.klxd 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 tuw hted:vl6 )f9)yljxyby x1n vlw;y 3kg,+.-he 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 equq 5+i, j/vfwsfilateral 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 chargevi, f/fj +qs5w due to a third charge of +Q placed at one of the other vertices?

  Which of the following is w-kvz-8rr9if not a vector?

  At twice the distance from a poinz7xg9qss-1p+42rot hj 1rcuit charge, the strength of the electric field

  Is it possible to have a zero electricoolu/a2+5m5 pug cx3 s field value between a negative and positive charge along the line lao mcx 2p/+g35o5uus joining the two charges?

  Is it possible to have a zero electric field value between two ii tov2*k.wqe 9,xbr0positive charges along the line joiie r2bxt*wviqo 9,. k0ning the two charges?

  Electric field lines near psitive point chzu42c a3qny0(np ,o yzarges

  The electric field shlf3,u le)bwpru -f )-hown

  Can electric field lines intersect in05)u xnvcdm vl 26ax.a free space?

  A solid block of metal in electrostatic equilibrium is placed in aup kpal6-mya9oi:9k. uniform electric field. Give a statement concerning the electric field in they9a poiu-:lpm k .9ak6 block's interior.

  If a solid metal sphere anjm8twsf) 1 :qid(81xkz5xelf d a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway )zm i1tw1kl8 8d5je:xsxqf(f between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unrzu5pd+ e7(uoiform electric field is directed straight upward. What can be said concerning toudr(75eup+ z he charge on the block's top surface?

  If a conductor is in electrostatic equ 7mb0 4y-5:s 8:xd pmgwsjehoiilibrium near an electric charge

  A positive point charge is enc ak13h b-cummmy/s4 0ee,x5 uwlosed in a hollow metallic sphere that is grounded. As compared to theu,ymmb -/34 ehc 5x1wm ak0ues case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equ3h,vwfsx8 h5 dilibrium.

State Gauss's law.

  The charge carried by one;7ter g+gg z;,m)wqkz electron 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. Hps3*nbw) t+ sro y 4to,csy-)pow many more protons than electrons does ty ssrow,to*ts- )3 bpyp)4n+chis piece of plastic have?

  What is the charge on 1 kg ofac(a+f1 w xbqx9 xcr+/ protons?

  An atomic nucleus has a4bkno l2 cfr2cutd 75. 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 c8ap2;fj-zb. ) yyfa xcd4.mfk7x3ood harge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between dxx yofa7p ;4fcjz )da-3b.2 of.8mkythem?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1e7iqhkd .:oh7 n 35hpx.0 N. What is the ma xon:3q .7h7 kd5pehhignitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart ak. qpr- f3dwbu7z wa58re they?

  The force between a rc)8esof g s/8$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expe iwa*13 1 qzh5nx:lbbgazxg5la(, mj ;rience a 1.0-N force. If they are ibg3z*mq1al x: 1 ahj ;(ban,5w5lxgzmoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC y3e q6 gup)vj9are placed on the x-axis. The first char)ujyv 396gpqege 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 charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed at q 7ge4).netj-gv k-) q oek4qczex(1nthe origin, -2.0cg74q.)j 4vx z1on qkgee en)t-ekq(- 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 at the origin?

  Three point charges azpl38lg xgkb8 -qtj; ,re 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 = -1.08 gg q,pj kzb-t8xl;l30 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the c/x/.f yvq-jh1yk.g*p7yl* w;c atctj enter 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 on the centet7pa / f-gyk cj1.;hq *lt*v.cjy/ywxr 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 uulvs*8a+ pl*;kobm5 at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). a5b ull* p;uv+*8som kWhat is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Qld.nnpd9u1e 9 2 = -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 thend1 e99dp ul.n 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the v- aj )3tb0iu-lecyk m6ertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any onetkj3i 6 ey0 -aul)c-mb of the charges?

  Consider point charges of +Q and +4Q, which are separated b.m,o)ul6 keop y 3.0 m. At what point, on a line between th,lpm.eo6)uko e 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 origin and a +9.0-C hj1wl8k l;q7xcharge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zeq lk8 h;xjl7w1ro?

  Charge +2q is placed at the origin and charge -q is o.qc5jxijwg h9+d+5 d placed at x = 2a. Where can a third po++c5q xoigjd dj9.5hwsitive charge +q be placed so that the force on it is zero?

  A copper penny has a mass oft ce, s:.uqn s++t r/crxh;4ku 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 gravit:oxhs 1n+ka 97+zyj gxy by the attraction of a fixed proton som91sho+: zx7x+ayg njke distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common pointpwpxm5aek29 v8 vgp71 by nonconducting threads which are 30 cm long. Both are given identical ca185mppe9 v xw2gkpv7 harges, 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 sqpo tr;mfik1a,s)n 9z/) 7 bpof +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nu;t)1m/ pksioa9 )psn ,zrfb7q cleus?

  What are the magnitude and direction of the electric field at a distance of,u8wd8jo7 fv inz )pe* 1.50 m f7fjz8 )oeun,pv idw*8rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What b z 6of3 zn69o8gmea,wbng*9lis the magnitude of the electric field at the le9gz ,mnno6 6g8lb3ofzwa*9 bocation of the test charge?

  A 5.0-C charge is 10 m from a small test char0:dnhh czxr3kf5y xg .)51 ntuge. What is the direction of the electric field? r15 ytn0zh35:hnx.)duk gfcx

  A 5.0-C charge is 10 m from a small test charge. ,m ewv2g2kuiuhj;v(9 What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the testju9gm,( v2ev; uik w2h charge?

  Two point charges eacm xg;19 /g jsitlp)fw)mw/zjr: k -;rfh have a value of 3.0 C and are separated by a distance of 4.0 m. What rm-ljjg:wxg9 ;) f) p1/im/sk fw ztr;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 zrhk,(d r/- itmeter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mark?hkt(di,r/ zr -

  A 5.0-mC charge is placed at the 0 cm mark of a *pv55pso4d7li/ h gkrv q-s5vy . dlk6meter stick and a -4.0 mC charge is 65/sd5hpdlviyl7vk sp -g k.vqro 5* 4placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed4v klkrznq3:ou/) d b:)rd.tm at x = 0 and x = 0.20 m. What is the magnitude of d)4 /:k. rrmkv)boqtuld3z:n the electric field at the point midway between them?

  Three 3.0 mC charges a(6 c-cq nid; up zxfgrta-64 me:mpc3.re at the three corners of a square of side 0.50 m. The last corner is occupied c4 c; z6mp-(reg:dmnfi.3 atx pu-qc6 by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m op7bvzc (x:i1x n 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). v 7bi:czpx1x(What is the magnitude of the electric field at the square's center?

  A force of 10 N acts wf ly *j 61v+ge+a3qoson a charge of 5.0 mC when it is placed in a uniform electric fiel3* +fevqg1a+wo 6yjs ld. What is the magnitude of this electric field?

  A particle with a charge o/civeiv.hyr c22 5 g 9oe(dil: g8(xmyf 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 electric fieth0-ssi f9e0.xvrsvdz h:b0,ld of 6000 N/C pointing downward. What charge must be plasshrsedzv00v:h9 x-,.f i0t bced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a6ncwi) mp y; )jri.4vt)+taj t charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the forc)jtwt64mitrviyj ;+) .cn) pae 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 mCxa 9 z:h9 zv46yokxn6o. What is the magnitude of the electric f4zyovn69xha: 9kz xo6 ield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries aq;4r( 6x frqg1o8hfnd charge of 3.0 mC. What is the electric field 6.0 cm from the center xqgdrhn qo 8(1fr;4f 6of the sphere?