State the law of conserv jms5a n67o1gwation of electric charge.

  Is it possible for two negative chs2d( v2ebh 1r*m ojj0garges to attract each other?

  Is it possible for a positive and a negative charge to attract eachh-ar*- skdxj4:el by3)w3qw i other?

  A glass rod is rubbed with a piece of swjw kv a/ry l0j,tbsr0-7d 8 -zq,yvq;ilk. During the process the glass rod acquires a positi 7jwqvrt- q -s;,0k/v lzdjy8w0y,ba rve charge and the silk

  A proton carries a

  The model of the atom showsvr8kzmjz8v 97 adh*y( a

  A neutral atom always hawl21b:ear(h( l nz2m os

  An atom has more elect2 yo;;hra y;dirons than protons. The atom is

  Materials in which the electrons are bound very tigw njksy +d2k3 cup7b:(7yp(behtly to the nuclei are referred to +bp7 ckd(73sj(ku ye2n yp:wb as

  Materials in which the electrons are bound very9hoz;.aebhp: zeg oz v6 /cot4v9ak;11 r-ual loosely to the nuclei and can move abou ;tzbh- .goke1oa4 vu:1cerp;z a/lv96zo9ha t freely within the material are referred to as

  A negatively charged rod is bro+*.mnbggr- ))yddfez7 iec6 z ught near one end of an uncharged metal bar. The end of thecniy)f d6*bg) 7z m-d+.greze metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphertzdh/7mjy33h h;iz ;-+we ktwe B is neutral. They are placed near each other on an insulated table. ;wwy3z/t kdhe i-3m;tz+7j hh Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod c7bx35vb mi9h0vttfd- e0n cj 1harge an electroscope positively?

  An originally neutral electroscope is briefly touched wit4qmt t 6*p5fqph a positively charged glass rod. The eltq4t*f6p5p mq ectroscope

  An originally neutral electroscope is grounded briefly while a positiv ;n5 1rrrsqfr(ely charged glass rodsrr; rfn(15r q is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electro0a3,uz z:tm+ k.pqni/ px9 ltxscope, and the leaves separate. Then a negative object is brought near the electroscope, buzi :pam/t+0 t x.3,9qpzuxnk lt does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an instqy ,5p1f udi3*j xfm4ulated 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 negative object. At no time does either ball touch the negative object. What is the final cha j mpi4*yxt ,f1qu5f3drge on each ball?

  Charge is

  What are the units of the Coulo+))ts eodd oxu-y.2yl8:imepd7n (ysmb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fb j u 3+ab.1:;olyxvzqirst charge is larger in magnitude than the second charge.yojq; bb. vl xz3au:+1

  Sphere A carries a net chargew*8q jr+al 4sx and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic8srjq +al4w*x force between them?

  Two charged objects ce 4b 21 1rkpl1+vxetdattract each other with a certain force. If the charges on both trpv+ 1bl11 2ceexk4 dobjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exit f)-uhm+0*. tyz2bmi4embdzr(k 6p ert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are th(4i-.mik2ymh fmr* 0) tztpbz +6udebe new mutual forces?

  Two charged objects k5stk,k n 6 +ctzyh-y1attract each other with a force F. What happens to the 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 origins-kyk1 , +5h ttz6ykncal value? The force is now equal to

  An electron and a proton are s.r qtpeu jv7l 1m7beu(kl n-0tk(rx:.eparated by a distance of 1.0 m. What happens to the magnitude of the force on the protonbrk7eunlx7e(p 1u m 0:t rl(-t.vqj .k if a second electron is placed next to the first electron?

  An electron and a proton are separated b)7 y(h-zh. r qgb;zyndy a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron i)y(gzd;z- b7yh hn.qr s placed next to the proton?

  An electron and a proton are separatedgirk;xhl (pvbn, af yg50:1h5 by a distance of 1.0 m. What happens to the size of the force on the proton if the electrkh;f:5l(g1pih5 abyx0 ng v,r on is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second poin/l cwq;3s vupd5o*q p7t 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 the net electrostatic force acting on the positive cha udqvo5 3wl7q;spcp/* rge at the center of the square?

  A point charge of +Q is placew m9::i/zw crbo,p8(u1ngqtowwz j69u e+n;cd at the centroid of an equilateral triangle. When a secon6zbu og,w:uwwi+j 1qr :o m9(9w;c /tnnz8 cepd 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 charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vec bk-eq 5qndt3q hepq,-t 5)-zotor?

  At twice the distance from a point charge, the strength of the elelty/ e5pi4v:r3br ,byctric field

  Is it possible to have a zero electric field value between a negati bc5 bkry05e6jve and positive y0 ejkbr55 6cbcharge along the line joining the two charges?

  Is it possible to have a , ukdrf1schv3c 6a)eq9su )*pzero electric field value between two positive charges along the line joi))fv, 6s1hd*9 e pua3sckucqrning the two charges?

  Electric field lines near psitive point j.qmeojc2 edz/n *lhl5m z --4f,8abocharges

  The electric field shm7ehns;y8 (: a)r9arqoxe 7o oown

  Can electric field li t0ld7 .ay+8 uhs3tomvnes intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform e/aw2ts 85bf -bx,a6 rpevd /kl1-ooielectric field. Give a statement concerning the electric field in th/f1t,ibo- dep ak w r285v- ale/b6soxe block's interior.

  If a solid metal spherwqrl*x7r4 h)o- qkg*m e and a hollow metal sphere of equal diameters are each given the same charge, the*-q wrmg oql*7hr kx)4 electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a re. 5wqadk;f;mx3 ijmy3 zrfl:6 gion where a uniform electric field is directed straight upward. What can be said concernz jr; wk ;3mq56.ifxm3 a:lydfing the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric + tvqpxp366a vcharge

  A positive point charge is enclosed in a hollo) ;v3b,jzj zhf yk;vq8* rajg-w metallic sphere that is grounded. As compared to the case without thek qgj8y;hza;b,j vz)f-vj* 3r hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conl zwye4ta 2k p392azm1ductors in static equilibrium.

State Gauss's law.

  The charge carried by one gg;w8m hi9n*k 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 h-co4qtk ;1 hxhq6 ilj9as a net charge of +2.00 mC. How many more protons than electrons does this piece of plastic hav6i9t 4k; q-ojhlcxqh1e?

  What is the charge on 1 kg of proton+qn *c29ux yqos?

  An atomic nucleus has a ch*xntxl66cfztfar 2iej , c3i;( 7s-mxarge 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 ;+ya uuctnr;c-wtqk e .jg,x 138ald1.0 mC, respectively. What is the magnitu aql1 3+gtadw.u-kteny,ccxr 8 1;;jude of the electric force between them?

  A 1.0-C charge is 15 m from a second chargeq vlfm8joh*b0q s 72:n, and the force between them is 1.0 N. What is the magnitude of the se 8*l n:b2s70hfqvmoqjcond charge?

  Two 1.0-C charges have a ++* avz-bjn.u*j:pnv d gnw;dforce between them of 1.0 N. How far apart are they?

  The force between a w8mg5 sc7.p*1 u gtepj$30 \; mC$ 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 they ar. yr*hyg*o.vvs f 45s o.nu0zfe moved to a new seog *h5y.ouvsnvf.yr.s0f4* zparation of 8.0 cm, what is the electric force between them?

  Three identical point charg pm5p syfc(wutfk uz:r1,+1( e h7edr7es of 2.0 mC are placed on the x-axis. The first charge is at the os p1kr1du7upc ,(hrw+: fz(fe7 e t5myrigin, 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 n9m01hs5qcp h +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 electrostathq50msp1h 9 cnic force which acts on the charge at the origin?

  Three point charges are locate m+-u -latnu :p*w8yhw cr*hj g)d3,wbd at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = nr-tpd: jw -*,lw bymacu*g+whh) u8 3-5.00 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 at the center of a square, and a seco7puqp) ufud, ,nd point charge of -Q is placed at the upper-, ppudq, uuf7)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 =ileu75 +5as/z w9 vpw6j3tgvi 5.0 nC is at (j5piv5za l9st 76ge+ vw /uw3i0, 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); Q2 =tgs tu6/4rc4.2xp azv72lcgq -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net.q72/6cl g4va4tt ucsr zp 2gx force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilater/2(- eqixw lliy d(5uyal triangle which measures 30 cm on a siilqd( lu wei/5yx -y2(de. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which area llliz ;47p8s separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic al pz74l 8il;sforce acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Where ./qej rjhnz g46r,4 dkon the x-axis can a third charge be placed so the net force on it ijr4, 4q hrk .6gd/jenzs zero?

  Charge +2q is placed at the origin dz2 4z l lbs4z19ncfd wa/50uwand charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that twad2dl9 zb zu ws 44z/nl051fche force on it is zero?

  A copper penny has a mass of 3.0tpluj 9ekq+d (d -um+3b4/avn 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 by the attraction of c75x*t6 ,b egiammxj;a fixed proton some distance above it. How far above the electro,6i7m;tc5bx*xgejm a n is the proton?

  Two 0.20-g metal spheres are hung from a common point*s(b:mgyc ao ,(rtvdrm/21 kj by nonconducting threads which are b osc:kv/(gjrm(*1ma t,y2 dr30 cm 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. a b:dknb.x x-xpizc;rz8i 710What is the magnitude of the electric field at a distance of 1.0 m from the nucleus?81c -xb xk.; b 0anpxrz7d:zii

  What are the magnitude and direction of the mspekdqxtc:dt;9*t8(j: pd q03u5s7 v(jk w l electric field at a distance of 1.50 m from a 50.0-nC charge? 9 8ddc(xjv(tuj0m pq pks537tkd ; wt:es:*lq

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudeo2zfd*(pb d6n of the ele( 2dzfd bn*p6octric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directionnmhqchbu: 1;5cedxrk0ho r/zb4 /+s 8 of the electric field?xz mh 0d 8s 4c+eh bbrn/h:uk1;o5q/rc

  A 5.0-C charge is 10 m from a small test cha( laeo/ s8we+wrge. What is the magnitude of the force experienced by a 1.0 nC charge placl(wwe oe8+ /ased at the location of the test charge?

  Two point charges each hacvll bnj8yb+( 2ku*s+ve a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field b*u kv 8l(y2+sjcbl+nat a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sti ;1img( 8: jphtiinw9yck and a -4.0 mC charge is placed at the 50 cm mark. What is8 ytiij(g1;:9mihnpw the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at thqr02 kufs9e1isx pfpt6m731fe 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mtk1 q fr0u7fm16fsisxe9p2p 3 ark. 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 c i569i)/x (twjt :kpn.kauk rmC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midwki/tj : a. 9r6wxi5kp(unkc) tay between them?

  Three 3.0 mC charges ae)ywurw4p a:1*7nejx re 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 electricn7wwxua)e :rj *ep41y field at the center of the square.

  Consider a square which is 1.0 b8 enact r.y)a *t:x5tm on a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0*ny xtt:etca) 8.br5a, 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 of 5.0 mC when it is placed in a unj+e3j .h5nz9vsi4cu z iform electric field. What is the magnitude of this electri+en .hj5 zc9 4v3sjziuc field?

  A particle with a charge of 4.k+)+d 0 i2,d e9aaac(6oexikyk4omfn 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 field of 6000 N/Cn((-v ye.lfge pointing downward. What charge(ve l(g-. enyf must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. ;uj3qpgcg0an; s) * jxThe ball is placed insc0 );;uxpgajs jg3* nqide a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of ra:ou :0g l/plini+juw7 dius 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric fipliuug o7:j/w li0+ :neld 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. s, ;zp,ta sia24pu*x sWhat is the electric field 6.0 cm from the center of the spherua;2 , ip4stpz*xs,s ae?