State the law of conservation of electric k5y( go0tsbm exo*g9- 1 dr9fqcharge.

  Is it possible for two negative charges to attrgjlt82e6g hv3r:ea y 9act each other?

  Is it possible for a positive and a negative charge to attract etyg;zd8 mth/jbh8-sq-7 z.1ze:kkn bach other?

  A glass rod is rubbed with a piece of silk. During tjprub0y;jl54hug : ;whe process the glass rod acqup uh4w jl;5y:rbjg;u0ires a positive charge and the silk

  A proton carries a

  The model of the atom shows 9whr;ye5 l(bigsj+:c c qjd +,a

  A neutral atom alway +:cv :gr belp7, y rb5rl4 qpkf33e68nvosl(ns has

  An atom has more electrons than py + ;:3shr qqqhuz9u3krotons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refer dbifrv dw )vl4 ujujlk6 8e2ya95.k,-red to r4 jk,6 5)djuvi. dye fb-lv a9luw28kas

  Materials in which the eljftn( ye(: ul*aq,lytn ep1gy/7xj: m s p(;8pectrons are bound very loosely to the nuclei and can move yyptjyj m/ qp sg1n: ( (etalf8e(n*u:7;lx, pabout freely within the material are referred to as

  A negatively charged rod is brought near one 4hwv7zuso4c wlobb c24(59lwend of an uncharged metal bar. The 4 7wl 4o9c5h4 bs(2uwvzowcblend of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They a k.e j.nadq d 2xsmmi527/lwd+re placed near each other on an insulated table. Sphere B is briefly touched with a wire that is groklqs./xn d+ e. 2jma 7m2d5widunded. Which statement is correct?

  How can a negatively charg a3owr 9/y l(.qi:hlsked rod charge an electroscope positively?

  An originally neutral electroscope is briefly toucjh 2x b n/iyk4zhh3i1n-fp: 0dhed with a positively charged glass rod. ni-j h1kh0ihy/ 3fxznp:d24b The electroscope

  An originally neutral electroscope is grht. kz t4ra26g1scwyf 0t/r )wounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electrosyct.0g6)k 4w1zw rstart/h2f cope

  A positive object touches a neutral electroscope,e/* 8tlqy1 6bheyif 0z and the leaves separate. Then a negative object is broug b6ez 081lyhieq/*fy tht near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tablk/7jtq p a8q7de. 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 charge on each taqqj7p 7/8dk ball?

  Charge is

  What are the units of the Coulomb cxe+f h9paozhu13p3 w (onstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chff* 4yf vb 2cv3 2 ,xagbtn0r:knt5va,arge is larger in magnitude than the second cha3ga2nxayrtf,b: vt,5k*vfn fcv4 2b0 rge.

  Sphere A carries a net charge ahs l(7wbp8e8n nd sphere B is neutral. They are placed near each other on an insulated table. Which statemenl88 nsw(pe7b ht best describes the electrostatic force between them?

  Two charged objects attract each other wit)4 ftr.u-7jvnbb, npe z2,ft bh a certain force. If the charges on both objects are doubled witht j-n )2pzft,,vbne.bb7rf 4 u no change in separation, the force between them

  Two charges are separated by a distance d and exert mutua r7ws 7)fm2one4sxj9sl attractive forces of F on each other. If the charges are separated b)ss 7jmx s er7o2n94wfy a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Whatt;zv 9 s o1kd,xnoef,:/t ,sub happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centeo9bt1,: zts,xu s,;vedk ofn/rs is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are sek,-)+w7c im z9wlqrakparated by a distance 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 elewlciq9zw, rk- a+)m k7ctron?

  An electron and a proton are sa *wysno 8h a6/lt(1rql fa7l0 z(4nkueparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a secondl0a 4(* l uhwzk tnsqa6(la1ny /78fro electron is placed next to the proton?

  An electron and a proton are separated by a dion85s)gv 8tbzna0 sama.*sry/a,bx ;stance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closx.sg v8y0s5;nno rs 8*/baa)atmaz, ber to the proton?

  A point charge of +Q i498l 2tb3jx f cdjvg*r g6x.kas 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 tvl46 x 93gk.8jbgr d*xajf2tc he 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 o k;wn 6dku59l pfu6g3mai95kcf an equilateral triangle. When a second charge of waduukmcf 3kg59 li6kn; 596p +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 charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vector?3zz eu4t4hor,nv - 5cm

  At twice the distance from a point charge, the strength of the eth-d,8u3pyrcx l d1h2 lectric field

  Is it possible to have a zero electric field value between a negative and positit.k.o vjnh6(hlc i , 31xnkzxhevr129p, pv/rve charge along thln3jcvh r np pr./9,1khti(v2x h6o . xz,ve1ke line joining the two charges?

  Is it possible to have a zero electric field valujyp*spj b1. x.e between two positive charges along the linxj..1sppyj*b e joining the two charges?

  Electric field lines near psitiqv9io pvc2 evo9j0c5. ve point charges

  The electric field shomofy* .t zp d(-(qq3wjwn

  Can electric field lib w+r9-p zkctmj4,qdhjnj*d67(r (xxnes intersect in free space?

  A solid block of metal in electi kb*a na1hdetk7.2u 7rostatic equilibrium is placed in a uniform electric field. Give a statement concerning.277kbnta*k1i d a uhe the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are o n up0lvl,lqw 5s/k:5each given the same charge, the electric field (E) midway between the csu/knl ll:,05 q5wvp oenter and the surface is

  A cubic block of aluminum rests on a f5ia.;/ novh08iflp*a0a+ jmb(tbj cd(ey y9 wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's 9 e*+ja.h(a fopbltyi im b8vfay;j(n05/dc0top surface?

  If a conductor is in electrostatic 3emp 7zw5nw. go(liy+equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that ,bn9 p1kyes e8is grounded. As compared to the c,p yknb81s9e ease without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conduc4 r:i3 sbrb h41kbbk3ntors in static equilibrium.

State Gauss's law.

  The charge carried by one elec0tri ,b*ezw q 6a*u6xdot2)tc tron 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 moriqj/6 37:szajgc4tmf r4a5ut e protons than electrons does this piece of plastic hs 5tj6: aj4r4 iuzmc/at qg73fave?

  What is the charge on 1 kg of proton,dvh. ykby;h7s?

  An atomic nucleus has9y.i*;dzt z ewpsm-d- a 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 4ljj6v15 v)pt aesz8b charge values of 2.0 and -4.0 mC, respectively. 6j)l51ts8 zva j4pebv What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the for;n+ryn.a l1 ywce between them is 1.0 N. What is the magnitudlyrnwyn+ a.1;e of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart arz.gwye w g-8 x4mdis(0,ge ;sfe they?

  The force between a a 8)g znszexqy2 c9e8)$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience af -pd,w,+r omj 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the e+,po d-,mwrjflectric force between them?

  Three identical point charges of 2.0 mC are placeq/s*nndo;w :i4z,lma d on the x-axis. The first charge is at the origin, the second to the rioz*4w/i,n;am:nq lsd ght 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 +2.0d9makj4sk ) 9mx-z7a2ppw *qy 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 whm*j pkx sa4-ya9 zq97)pw m2dkich acts on the charge at the origin?

  Three point charges are located at the following positions: Q y / d v.jxn-v*oh0c6:g*az/ vkxyvl6r1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = x. ayzjo:vv g/ny*-k 0c*l 6/6drv hvx-1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of tzr,1wqk t o 5iljh8vas7)54 ja 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 center charge if j7v84ka5lr h5 qwjoz 1st,)it 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, 0.10yqb w1z:)w d5ve 00f.hwelw(u m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force ony.bvlf 0( 1qz)w0wuhwwe :d5e the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC i5(vysssr0,xw i. 9ab gs at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the (wb g9,0 .s5s xvsiyarnet force on the 5.0 nC charge?

  Three identical charges of 3.0 mC ar3s( -c ,ky+nkplx khnv-:yw( d8bl.gae placed at the vertices of an equilateral triangle which meassckpl 8xkln( y+ :ga(-bkhn dw,3.vy- ures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separat5u+.2 p xu)q,zwmdo uted by 3.0 m. At what point, uouu5q.m)2 dp,twzx + on a 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 origin and a +9.0-C charge is at x = 4.tciws:jxagdn7m9 t*g+9eq /+ 0 m. Where on the x-axis can a third charge be placed so the net force on it i sdtj cq:gnw*/ 9+ x9amitge+7s zero?

  Charge +2q is placed at the origin and cqgdwih x,xt2h f- 0d,ut:9-tjr9llk0 harge -q is placed at x = 2a. Where can a third positive chargq,xij9f0t:l- t9hk ,0gdul-2 xdtwhre +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 ce br+ :5y*ll om-sv.qg. 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 atk y0,fsq4iy8p .skl.ytraction of a fixed proton some distance aboik l0k,8y .fyqpss4 .yve it. How far above the electron is the proton?

  Two 0.20-g metal spheres ardm -c: x/0semme hung from a common point by nonconducting threads which are 30 cm/s:xm e dc-0mm 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 ob a/ad x61gd9sgy*.yqf +40e. What is the magnitude of the electric field at a distance oy.dqg6a xy*/ d9 agb1sf 1.0 m from the nucleus?

  What are the magnitude and di6m2mb:22wi:klf 8iz q4n mlkkrection of the electric field at a distance of 1.50 m from a 50.0-nC charge?m2lmq 8ii2kflkz:b:4w k 2nm6

  A 5.0-C charge is 10 m from a small tess(:55 ,siomewifz 7 khvvg3/st charge. What is the magnitude of the electric field at thew:/fhi 5 msv7g(z,esoiv k 5s3 location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the yu n ax bh-:2iq qa(:+czo)o3qdirection of the elect +qz( q- oaq3hu:xbci2yo) :naric field?

  A 5.0-C charge is 10 m from a small test charge. What iqly:tpq ns/:t(ws 11f s the magnitude of the force experienced by a 1.0 nC charge placed at the locy l1tw(f:1 ts/ qnqs:pation of the test charge?

  Two point charges eacux7yxh*n w kjk.bd m/d3y3(p/h have a value of 3.0 C and are separated by a distance of 4.0 m. What is mju 73dbkxkdx(y/ y*w3./nphthe electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a met;+ql t+w-cjwx.3wd, xxb5kx ger stick and a -4.0 mC charge is place;kxxxtwb gw-c q3,+ l+w .jx5dd at the 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 o/z,d*,e fzn exf a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At x,z ee zdfn/,*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 place5 mf sjg .ds,p)k0s3wxd at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between them5,s dsjf3gmkpw)sx0 . ?

  Three 3.0 mC charges are at the three corners of a squa( fb-(p4eeiq,h 6tb xo.;li vwre of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of tq w6t -bl4.i xphoife;,b ((evhe square.

  Consider a square which is 1.0 m on a side. m:j-htz/-e)fozep 30 fj1yja 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 a/zjj o:ahfme)0f3j - -y1ztpet (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 of 5.0 mC whe. uv8y7o/:,f,f( m muvmmrjymn it is placed in a uniform electric field. What is tm(.m mvvy:u ru,,yjo8m7 ffm/he magnitude of this electric field?

  A particle with a charge of 4.0 mC has a m9+v/5y9+o3 kqh:.k uazx :swfxa8iaodni h2 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 field of 6000 N/C pm,jfo rg1g)w z+yw ,iti1m-h2ointing downward. What charge must be pw rhgt,g- f m1yj)zi,2iw o1+mlaced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball r , yo*(ou+j/zhpd5h 2rqug j1is placed inside a uniform electric field, and is suspendegjyj*21o /hzd u(o5uqp + rh,rd 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 the magnit 5/ uxeqqu20 pbx+dswz ksk(/docc75*ude of the electric field 5.0 cm from the spxz0qex o/*+d(2c dq usu/kb 57sp kwc5here's surface?

  A metal sphere of radius 2.0 cm p :owbs6 9*onh+z2wv bcarries a charge of 3.0 mC. What is the electric opzb +*2:9wv6hwnbo sfield 6.0 cm from the center of the sphere?