State the law of conservation of electric rg5h0gy3,nf7veq;t c charge.

  Is it possible for two negativ 7qr/ege awp35e charges to attract each other?

  Is it possible for a positive and a negative zylak6k 7g- r(y5:q sqcharge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the gla5y6k wyo,y. ynnovp 4hc/l1c3ss rod acquires a positive charge and the sw.py6cn3l ,/oyy5 k nocy1hv4ilk

  A proton carries a

  The model of the atom shows apt k 5bp (0y;cjpe-r h9osr-4o

  A neutral atom always h znp1m l7/r4meas

  An atom has more electrons than protons. uy0 itim-hr7+ The atom is

  Materials in which the electrons are bound very tightly tdw 3e/xj.) eidyli 4+lo the nuclei are referred to ) d+liyx i4j/dwe3. elas

  Materials in which the electrons are bounxki:87(fi q mnls2i.pd very loosely to the nuclei and can movsiq(pilxmf8i :k2n . 7e about freely within the material are referred to as

  A negatively charged rod is brouqm ebr*vc24s. ght near one end of an uncharged metal bar. The end of the metal bar farthe.*sv cqe2rm 4bst from the charged rod will be charged

  Sphere A carries a net positive chargit s)4hv f-imv+ti, -dq 9bux5e, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is brief --dt4thiv)9is+vi5q xu,mfbly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope n 8d 8 s0xjc .9ozbdhix5smx43positively?

  An originally neutral electroscope is brie mxulwqh2p+, *fly touched with a positively charged glass rod. The electp*x,+mhql 2uw roscope

  An originally neutral electroscope is grounded briefly while a positivexe tbuxvuqmc)*u-kci bvw-,()m.v 6/ ly charged glass rod is held near it. After the glass rod is rem/ vtcxq)ew*vkm, 6)vu(xc.buium b-- oved, the electroscope

  A positive object touches a neutral ,4-hzq* c+ux 2fsu,woyc6 vflelectroscope, and the leaves separate. Then a negative object is brought near yu4f+uzxqcl ow6,2 h, vc-sf *the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutr b9gizte)yd: 0)z2zpwal 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 :zz)d2t b)w giy09peztouch 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 con) 2sn.fpugzp i.yquc8vs2 8 a:stant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a drh0v p *+o9uboistance d. The first charge is larger in magnitude than rv+h09bp*ou othe second charge.

  Sphere A carries a net charge and sphere B is neutral. They are plax -m*7;/x k- om+ryyj3jkvv )smfs1s gced near each other on an f7k3k ;m)-g*msvsxy- +/vmsyr 1ojj xinsulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with xnp3b/hr9+5f +rljsxa certain force. If the charges on both objects are doubled with no change in separatiosprbxf/x +rn3l+h9 j5n, the force between them

  Two charges are separated by a distance d and exertb;t x1p;.sh( 7 vzc.zwkfd2v m mutual attractive forces of F on ;hfkxp 2mwdz; .csz7b vv.t1(each 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 happens to thev2c4 xzp ja.;k force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its orig k4xazv .pcj2;inal value? The force is now equal to

  An electron and a protoz5qd 3 e+w2 ya92:n ep)pqc(rnbjwd 8:ob:klmn are separated by a distance of 1.0 m. What happens to the ma b(poeb:dqz2+wn)cjpay8 q 9 ldnr:wmk 2e 35:gnitude 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 xqumbf;uqdy g 7o6n**(z *nq8 of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placd qyu uqxb8**zonn;fg( m 6q7*ed next to the proton?

  An electron and a proton are sepah x ff64j5s:ograted by a distance of 1.0 m. What happens to the sh:g6f j 4ofxs5ize of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is plajxx-nf(o2b y ,ced at the center of a square. When a second point charge of -Q is placed at one of the s xxj ,noy(-2bfquare'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 of an equz3d/mqz6 f8q okrb /f0ilateral 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 c0zzfq 8fqd/3rk6mb /o enter charge due to a third charge of +Q placed at one of the other vertices?

  Which of the followin0ns g5cku8 qz c3g 4+dtsoc+1-/dn/t h2bkeoig is not a vector?

  At twice the distance from a point charge, the strength c/vo+b)d/ df27qdrbe ;r6ayg of the electric field

  Is it possible to have a zero electric field value between a negative and positrkq ea(r;hqs)w/+t a .ive charge along thew;sh/+q qa( r r)akt.e line joining the two charges?

  Is it possible to have a zero electric field value between two posilaz+qclcv:. e0 39qxytive charges ale3 cv9lz xlc .ayq+q:0ong the line joining the two charges?

  Electric field lines q t;-vuc:qzal:r.tv9d-i aa3near psitive point charges

  The electric field shysiv me ))sj5mz *n8p6own

  Can electric field line 3r346w6k;fkkxvtnszs intersect in free space?

  A solid block of metal in electrostatic equilibr+n gcfk5iu1zp q2)8oqium is placed in a uniform electric field. Give a statement concerning the electric field in the block's interiufz)i 28q5kn cqgop+1or.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each gqybk6a r: ;e,l7pez hs 0onb6jr5.j,aiven the same charge, the electric field (E) mid ba elhr ,;k6jajq0r6bp,yo5zs n7e:.way between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifor)uhvf 7udr p 0i8*sixp.u0l) zm electric field is directed straight upward. What can be said concerning the charge on 8xv pu .0is)r0h7puzluid )f* the block's top surface?

  If a conductor is in electrostatic equilib kl(nmmk 98bmx7g i-5mrium near an electric charge

  A positive point charge is enclosed in a hollow metadgvfi(2 ie7q(n.q: ae llic sphere that is grounded. As compared to the case without the hollow sphere, the ele(d(:.g2in ei qv7f aqectric field at a point directly above the hollow sphere has

State three properties of couyx3ecq1*2i v nductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is ghc1e9her43r 4n cu;-ce4ju z $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge /l +i3dgazb )p2z*jaaof +2.00 mC. How many more protons than electrons does this piece of plastic h /)ia3 ajp *zlb2d+zagave?

  What is the charge on 1 kg of p hsn yus,v9)r2l/ 3mczrotons?

  An atomic nucleus has a ch-zlxi jvaoh+0w;u; t2k- c mu9arge 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 -4mwo 95zmo*u217/ ufhduf7dm9)go zfe.0 mC, respectively. What is the magnitude of the electric force betweewf mh5f)uomu*zde d7m g 7oozf991/2un them?

  A 1.0-C charge is 15 m from a second charge, and the fot matw.3pf s:czr6 :jppbwx3y4:)g 8vrce between them is 1.0 N. What is the magnitude of the second chz:bp.8w)jt6:tp mg va :3c pr4 w3ysxfarge?

  Two 1.0-C charges have a force betweexwfy 9s.qqnu8 ,8eb k +k9yk t6oujj-0n them of 1.0 N. How far apart are they?

  The force between a utre7s -7tuojo 7m zol9h:s ;;$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force. If the)9tmf6az;6 ubzi 2di jy are moved to a new separation of 8.0 cm, what bzt9ija6;z2f md6i u)is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axi(s2 dcyn6bao kj/,q+w.ku ; ias. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 ,(/; o s.ja ud2bkka+wn6 qcyicm 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 0cuqx/v5f;sl 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 origivqucf; 0s5l/xn?

  Three point charges are located at the following positir+fx lkziz+ v/o.a- 5dons: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x =zafox r+ d-iz5v+/kl. -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q 6hk fcd+;wz66(voicfis placed at the center of a square, and a second point charge of -Q is placed at thedh;c vocf 6+6z6(iwkf 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 n/pw6p jd*bp6f C is at (0, 0). What 6b*df/jppp6w is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.31 v:;blkvr5 m5ll7xwl 0 m, 0); Q2 = -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 55kx:v;l llm17 5vl brw.0 nC charge?

  Three identical charges of 3.0 mC are placed at thei+4b va2q b6fg vertices of an equilateral triangle which measures 30 cm on a side.2+ 64ifqa gbbv What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charge5, fu.7 *hgtfwi9v /p6u mnsjrs of +Q and +4Q, which are separated by 3.0 m. At what point, on a l u, 7*pm js unr/5v9igw6tffh.ine 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 origis9xj*r6 8yt-kl8 .)umwi zvodn and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge86dor )im*9 j.u ly8x wsv-kzt be placed so the net force on it is zero?

  Charge +2q is placed at the origpql )2ntca rerx+,+ a*flg4.jin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so thapr4g+a,rcefa*lx+l ) 2qjtn.t the force on it is zero?

  A copper penny has a mass of 3.0 g. 9x2 +0 ,i1ibkpk9b zdihlmv-w 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 attraction of a fixedrpouaz1vb:,;-akk)a *e u ee/ pra/1 ;o-)pkkvre*b:,euza ae uoton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thread8whfc1z 3 e)wp7axr j2s which are 30 cm long. Both are given identical charges, and the electrostatf w zcer)ahp8w2j1 37xic 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 +40ei-qq-cl8ads( l5 yid+mt (l h:. What is the magnitude of the electric field at a distance of 1.0 m from the nucleus? (m-:dc5qshil +-alidq8lty (

  What are the magnitude andnufhk;9l8 0mliun0) r direction of the electric field at a distance of 1.50 m from a 50.0-nC ch0 80ulin9 mkl)urfn;harge?

  A 5.0-C charge is 10 m from a small test chargzfws:f0obh 330,ml,t 5d x duae. What is the magnitude of the elec0 ftsowb,u5lxa d,:hf3 30dzmtric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test cha0)yaz xjj/x c;rge. What is the direction of the electric f /xzx )ja;cj0yield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ofimxr 1h*q o*y/)ix4lf the force experienced by a 1.0 nC charge placed at th1xq*or4mx f/y ihl)*ie location of the test charge?

  Two point charges each have a value of 3.0 C 75q(,ck ,wwcu 4oy jj.md,vaa and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two cha o. k,wj,7q(,5aac jym4vuw cdrges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 t i76jozkj1q8cf g-6fmC charge is placeof 1 c-t8k766zjfqijgd 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( qlip -/;4 o .2peclqfbohh;cf a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges iphqi(-l .o;c f2;4pl/ecoqbhs the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC 02-a ieyo+mynnd-v v( are placed at x = 0 and x = 0.20 m. What is the an0 i 2-nm( +deyoy-vvmagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are ;gk3 xv fw)l0v46teyy at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electx y kv64yt); wlg3v0efric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges arex 5x 46 62uvd cgsbivyn/wky+( 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 s 5xcyy(6givdv2kw 4/+ubx6 n of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed ir4j1/ckb9 d mk5.egr5 tn arfy)2hyf4n a uniform electric field. What is4 n5yck at2hfdmyfe9g1r 5/r.4)brjk the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass ofqx672f+mb tcbkkuby*.h 0+yv $5.0 \times 10^{-3} \; kg$. 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 ,,5p9 j7h/ ;e-7fvoas c) mrixoouwi z6000 N/C pointing downward. What char -ap9oz5or7)ei j;hs,imuxfwoc v7/ ,ge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 a juo/,x+p br2g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnr jb u/xo,p2+aitude and direction of the electric field?

  A metal sphere of radius 10 cmoz6t96p, hloh,p 3y jl carries a charge of +2.0 mC. What is the magnitude of t,9loz l,6yppjoth6 h 3he electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm can4 nrb3(. gsnc u9poc+jqf3 h)rries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the(bh4.nspq+cco 9n)3gnf jr 3u sphere?