State the law of conservation of elec5jhv4yi4 wp3lm49ai ctric charge.

  Is it possible for two1 t*f03af.u;hzf4 wx )w:cs6 bdpmdgp negative charges to attract each other?

  Is it possible for a positive and a negative charge to attr3i lbm3ac473 jqsbie1act each other?

  A glass rod is rubbed wi*c5 1oujvvu,f th a piece of silk. During the process the glass rod acquires af*uo cu,v 5v1j positive charge and the silk

  A proton carries a

  The model of the atom shows rr/ b*8,qg p+z watzg vn3+xg:a

  A neutral atom alwaypju v89w0.qw.d9jsi6 l bi dx8s has

  An atom has more electrons than protons. Tpefo2v.y vm)v8uyp y +lr h74; 17qieehe atom is

  Materials in which the electrons are bound very czb8)u y,u:3jha) bjltightly to the nuclei are referred t ):yc83bublaujz ) h,jo as

  Materials in which the electrons are bound very loosely to the nuclei and can w2f xuxcbf 9,k7v(/h ymove about freely within the hbuc/xk fw2x79v ,(yf material are referred to as

  A negatively charged rod is brought near one 08 q.h/eyo wrcend of an uncharged metal bar. The en qy08/ rcoweh.d of the metal bar farthest from the charged rod will be charged

  Sphere A carries a ney 9s*dbo,gr ( 2a e+w4u jteh(it-r/mrt positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statemeear2mtogys9iw r*/+-et(j hdub4 r,( nt is correct?

  How can a negatively charged rod charge 5ht1huto4 v b3orf0 q1an electroscope positively?

  An originally neutral electroscope is briefly tvoo z5jcc+o* 7ouched with a positively charged gjo7+cz cv o5*olass rod. The electroscope

  An originally neutral electroscope is grounded briefly w v5 /hljphgt g72j61gmlm oz70hile a positively charged glass rod is held near it. After the glass rod is remmoz01lt7lv h7ghgm /jg2 6 5jpoved, the electroscope

  A positive object tofo,e74.*tz rxhtk cy.uches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not to etxh,z tcf*47y r.k.ouch it. What happens to the leaves?

  A large negatively charged object is placed on an 5jpu5 )lxjyx,9eob9rinsulated 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 f)9jr9yl uo xjb, 55epxirst 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 constant r7r( 1o q/7de)yudj3 ltdq1jw$k$, which appears in Coulomb's law?

  Two charged objects are separated by a diiyq3:vlcva +w34 xow* 2u 1uwpstance d. The first charge is larger in magnitude than the secou p ow u34wxc+*vawv:i2y1lq3 nd charge.

  Sphere A carries a net charge and spheree9c .h: uow;nboc+ mkhwzq:t0,i): lt B is neutral. They are placed near each kol ne:t hcbcm.w ;hzu+toq)0iw,: :9other on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attractzpv9e, nebq12-cu4ox5vn yq /11 xs mw each other with a certain force. If the charges on both objects are doubled with no change in sepz- oc p52nqx9 1/wq1m xsevb ,uynev41aration, the force between them

  Two charges are separated by a disr r i4wgfo5uwrdlc w729xaj7d ciq 4;t-jy5+0tance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/-i 552q4yx l77awjdg4 urtw9i cwcrrj+fo; 0d3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the *oia4 d9k(m rtforce between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced todk a4*m9t(roi one-fourth its original value? The force is now equal to

  An electron and a proton are separk i -qz9hy9.yuh16/( gewmgszated by a distance of 1.0 m. What happens to the ma/ez( g .iu symh9w16hygqz9- kgnitude of the force on the proton 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 ha1vf-hj l13ohi.j u p2;nhr/p appens to the magnituau1v ;i3 .ho-h/2nf plr hpjj1de of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separ t3z963/hk 40psdb2ln2mztdivl f ih 9ated by 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 thenzdt6 2 slip/f4v03t hmzhl 2db 93ik9 proton?

  A point charge of +Q is placed at the center of a square. e gq8vtm bd)o0+* w e(idd,-r 0.k5lmz fltcr3When a second point chargdb,05l8lidtre tf *)k d.eo 3m cq0 mzgr(+w-ve 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 charge at the center of the square?

  A point charge of +Q is placed at the centroid tji(+f0 3dzm v y9gjk2of 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 ak (3 fvzj9+2gy mj0tidcts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is no hx( d2yn;e5e9dk+tur2. u0p, qnt xidt a vector?

  At twice the distance from a point cy5mxu),5pky-6cjoe q0 j,i rcharge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative:b u/wt-ep+;z1xc ;q8 xje lu op4qhc8 and positive charge along the line joining thezpw/ oechj:uxl c ;uq-;t81x e8p+q4 b two charges?

  Is it possible to have a zero electric field value between two positive char 198gm)3ua wy.i62dud eplct fges along the linea wg8u2ltyu9)me 6d.if1p d 3c joining the two charges?

  Electric field lines i:e ja p;5myi v2svez79:r )lanear psitive point charges

  The electric field shown qs+*2;7zmaexs1 nw6aae +ggd

  Can electric field lin oi-u r0d:/zytes intersect in free space?

  A solid block of metal in electrostatic; tw4yt m8lbxc2n 8ok2/phk/e equilibrium is placed in a uniform electric field. Give a statement concerning tw/h/xoc;mp 8y8tb 4kl22etk nhe electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters193kg h3mw:zl+v zj4 xlqp/ wm are each given the same charge, the electric field (E) midway between the center anz k+m lzw/3 j:w91 hg4vqpx3mld the surface is

  A cubic block of aluminum resttuugli twttv:p;8*x7s ,b 02x uwh -5qs on a wooden table in a region where a uniform electric field is directed straight upward. What can be ss-h2iu0lg8tx ttu7wt, u *xbv5 q:wp; aid concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric ;lc;.e9:7eft-j ue guhfp 5chcharge

  A positive point charge is enclosed in a hollow metallic sphel72vo,dvlvr (ae7d3d re that is grounded. As compared to the case without the hollow sphere, the electric field at a point directl7dv vdol3e 7rl,( 2vday above the hollow sphere has

State three properties of c5pi0heaqbm;,,m p k*oonductors in static equilibrium.

State Gauss's law.

  The charge carried by one ec9 in:kr)i5 lwlectron 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 protons than elexs pz+o2 4:pmf7iosf; ctrons does this piece of plastis7:z2pms 4fpi;oxo + fc have?

  What is the charge on 1 kg of protons?k/ztovr84rt 4

  An atomic nucleus has a 2cpibxkg;ptj1y; a*3 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 charge values of 2.0 and -4.0 mC, r7r3mrrer*kqcrl 5*w(i urtq22+ /b35jz medxespectively. What is the magnitude of the electric force betc mqxm2zerkrrdq+*(*luir 3rr wj7e355bt2/ween them?

  A 1.0-C charge is 15 m fz4 ,l-b7ce +yv a+i/minxo hrf.w41s arom a second charge, and the force between them is 1.0 N. What is the magnitude of+7zm axws+br.1if, ol- 4 ceahv4y/ni the second charge?

  Two 1.0-C charges have a force betwee:j-ls wu;*qik0h 1qybq zz1 *in them of 1.0 N. How far apart are they?

  The force between a +2 rlwop2p x9c$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experiencb(rd2d,p+ v vj)ux +ex2hcux,e a 1.0-N force. If they are movv e+c,uj(d+vx)u,h xr2xp2bd ed to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. 63x k c)s8iaihThe 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 arc36i ks)xa h8ie 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 cdvob/eg *kt wn:b+ .: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 the charge at the or:t/gkdn+ve.bbw c :o* igin?

  Three point charges are located at the followi 6f01odx;rsu png positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 31o;dfrxups60 .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-mC charge?

  A point charge of +Q is placed atnzj7j 7hau 7qm3(ddqy+ :6dce the center of a square, and a second point charge of -Q q7aj e+cz(n6jq77mdh:uydd3is 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 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC i zemkb 6r ,on:0zv8(yvs at (0, 0). What is the magnitude of the net force o8o,mn:6v e( v zy0rzbkn the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = ,z (v*daya/xo 5.0 nC is at (0, 0). What is tay zv/d,xao *(he direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the veryfx7i vi 97,iy+ pal) 4cnht)gqkuv)6tices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of thepyl+9xc7gh7u)iyat 6qv) vn,k i4 f)i charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At w7jw6cljin f*u/1cw:. sr k7bi3zup z6 hat point, on a line between the twiwu k:c7bsj cz .1w6r/f*z6 pj n3lui7o 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 z*7fz pzk+, -egx fra0charge is at x = 4.0 m. Where on the x-axis can a third charge be zfgza7+,- z0xef p* krplaced so the net force on it is zero?

  Charge +2q is placed at the origin andxdtv t8g)n0 x1sn6cm0 charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zero? 0xg0nd1v tx6cstn8)m

  A copper penny has a mass of 3.is2z 4rf 5fil6f 9ilp50 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 nw,, zx5xwjy46c m bsx/9-iysby the attraction of a fixed proton some distance above it. How far above the electro b,5mw /z6c,siyxn- ysx94wxj n is the proton?

  Two 0.20-g metal spheres are hung gv86anl .b1arpb.gx/p+ nlz : from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the azr/.abxg annvgp1.b6+8l lp: ngle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus ha9j/oc gze3 cm(s a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nuclec /(z3mce j9ogus?

  What are the magnitude and direction of the electric field at a distash5ht ml m2 1+7/pkgddnce of 1.50 m from a 50spm dm7/2 khd+5 1gthl.0-nC charge?

  A 5.0-C charge is 10 m from a small test chw j,x-dm93fl nfv5v6jarge. What is the magnitude of the e5dfm-69vjv lxjwf ,3nlectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the .;btamb:ktdkwe o;,z*a 9yp3zy /9 *a )uxroselectrico)ubor ; y*ymzt 3*;abkdkt,a9 z9:sxwp/a .e field?

  A 5.0-C charge is 10 m from a small test charge. What is the maht 7ozr6lx tla: 435ragnitude of the force experi:t l5z 3t76ra4olaxrh enced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distanccvjpo 7sugh+ 4/xz8gyp x o94q0 (w4dpe of 4.0 m. What is the electric field at a point midway between the two cha9 / cx p744u xwgpvs8ozgdqh4poyj(0 +rges?

  A 5.0-mC charge is placed at the 0 cm )e)jhi ikdp2:mark of a meter stick and a -4.0 mC charge is placed adh)ep : )ikj2it the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 kpu:q0.xh +olsljck*r4-)uq-lxw n1 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At whcr)4n.1-x0*jpho-: uk+ul wqxql ks lat point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC ar(x,zwjf u)n+0py+ a-e2 )npolpyy g4 be placed at x = 0 and x = 0.20 m. What is the magnitude of the eley,eplu-+(bof24w +x 0j)pnz pngya y)ctric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a s d3bxhp-mzb c.3)c vah/o12xxquare of side 0.50 m. The last corner is occupied bvodh -h1bxz )/ p 3xab3m2xc.cy a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a sid1 ( +h/sypen5wxm hmea;q8cj3e. 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 electr; /hesaxyecmwp1 jqm38 nh+(5ic field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed iht2oy-s;nln /z e1pbggm :0b-n a uniform electric field. Whatogbgz ht :ye;2 /p-10lmsnn-b is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a massixj.l x*x 49c0rar qi2 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 in1 nflw/ +5ka xto;n3ap an electric field of 6000 N/C pointing downward. What charge must be placed on the a1x+ fkw;n5npa o3/l tball for it to be suspended?

  A foam ball of mass 0.150 g carries afd21ea hn 8og7::nfgy charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. Wh 71fye8:ng :daof 2nhgat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC9du pa;7,s7 4zpbvjyh. What is the magnitude of ;hv7 papy7u,s9jdzb 4the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius+ia,vk5i pnad o5h;8w 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphere?kwada;o+ i 585pnhv,i