State the law of conservation of electric charge.8kpro,)as k6un98c o e

  Is it possible for two negative charges to attract each othe- b q+rzx9ztly/d7gsye /u( +wr?

  Is it possible for a poizam1/p7 s: resitive and a negative charge to attract each other?

  A glass rod is rubbed8-1ma3 d )uh)woscw)uygoqv 5 with a piece of silk. During the process the glass rod acquires a 3)-w dygmuo 8c)a5)whvoq 1uspositive charge and the silk

  A proton carries a

  The model of the atom svpk/47wxzb.uhm y ka ( ln/;a)hows a

  A neutral atom always hahh;.l 8tqtz t2s

  An atom has more electrons than protons. The atom itwpb9ia xa fa4a*.789koo q f0s

  Materials in which the x ;d4d*oz vc/zelectrons are bound very tightly to the nuclei are referred o;dzz xc*4v d/to as

  Materials in which the electrons are boun-wzi(i (hehk) d very loosely to the nuclei and can move about freely w )ihzhek(-i(w ithin the material are referred to as

  A negatively charged rod is brought near onpk 2:5y 5y atzvc81ajx3uzh; ze end of an uncharged metal bar. The end ofzpt58 31cxyu5za vz; yah:jk2 the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are place 5eyqesyomuk:u2y/9 .d near each other on an insulated table. Sphere B is briefly touched wi9sy ku.qm: e/u2yy e5oth a wire that is grounded. Which statement is correct?

  How can a negatively char2:7 w* rwrmhlwged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with lpunec 1;7alqsf ebpg95 /g(:a positively charged glass rod. T bge/(g5 c af:el1pqsl9p; n7uhe electroscope

  An originally neutral electroscope is grounded briefly while a positifg(6:.v siqvf o9a u+uvely charged glass rod ivf9ofq(6uv :g.u+i as s held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separatyc8f 5 :1 xehb1ehka2f+rf/une. Then a negative object 5 f1n/uec2k:ff+ar1x8hb yh e is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged objectkfr2t*bx7 - d1d a;mac is placed on an insulated 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*xdkfat; -cm 1arb2 d7 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 cc j8ii30nffef /vp b 1kbo3z31bgj8b7onstant $k$, which appears in Coulomb's law?

  Two charged objects are sep.poiec;4re5 c arated by a distance d. The first charge is larger in magnitude than the second chc4;cro5 p e.eiarge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near 98ploo0z.oczz i 3s d0each otherdzcs3 zo z0oo89l 0ip. on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a c * pmo*ou4fve:*(vrukertain force. If the charges on both objects are 4pu( uomkf* *vvro: e*doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive fogz0cec . uf/nsq2q z1:rces of sn .q2ez/ucfqz0 g1c :F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract eachs/ww+*sonw l,,c,pdhb km 0c3 other with a force F. What happens to the force betweenp 3 kls ,sow, c,/dwhnbmcw0+* them if one charge is doubled, the other charge is 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 happe (z vxhcvy08w+ns to the magnitude of the force on the protyvc+x (h8vzw0 on if a second electron is placed next to the first electron?

  An electron and a protor rku-6e8pq.bdc0m u: phgh)(n are separated by a distance of 1.0 m. What happens to the magnitude of the force ongp80u 6(prud.k :bmh rcqh- e) the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0h s8s0 d) v22g9qminax m. What happens to th0qng 2sm9)iva2dhsx 8 e size of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at (zcpwm6-;whggk j;rz q1 9br9the 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 the positive charge at the square's center. Now, identical charges of -Q are placed atz9gw wrj mgk(; pb-9cqh;r61 z 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 equ:b:e22ir wa kiilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices riawbe:i22:k, 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 ilpq+ dp /dj;tjsgrgob4s o2 (4aienq(lj/3-3s not a vector?

  At twice the distance from a poirthqs5dl5 7xq/v;p2b nt charge, the strength of the electric field

  Is it possible to have a zero electric fiel;6. *i)wb kn6nvtm(l jz7zqyl d value between a negative and positive charge along the zt7wlbn(*k qn vlj6im);6z .yline joining the two charges?

  Is it possible to have a zero electric field value between two positivfbydlis:; . jk;p:y-qi +lzs 7e charges along the line joining the two chargesiy l;lbps:f +:-z kjis;q7 dy.?

  Electric field lines n9qralzf4k* 9a ear psitive point charges

  The electric field show2bt)az ii7ar*otl s,3v0 p( ddn

  Can electric field lines inj:ja xv);yfd.8l *haeft a66ttersect in free space?

  A solid block of metal in electrostatic equilibrium is placep +ai;zo9trf5 4 g5rfed in a uniform electric field. Give a statement concerning the electric field in the block's inter5;prf+o e tz45ra 9figior.

  If a solid metal sphere and a hollow metal sphere of equal diameters alc/37 ilg)kvs re each given the same charge, /)ks3c ivl7glthe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a rm,)f 27d*uuz ts.jvcxyk*q9yegion where a uniform electric field is directed straight upward. What can be said concerning the charge on tq,j*zky9u*cdut)x y.vs2mf7 he block's top surface?

  If a conductor is in9l; ) wzhsb l2pwy4hg20 p0zp +jc4mbr electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metalliey* tin1of70d c sphere that is grounded. As compared7i*0 tfyndoe 1 to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrm mk9t,m s/c7mm(3z2gh-c xpu ium.

State Gauss's law.

  The charge carried by i5 kyx84evd:z one 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. How m5k-+ vttzlie( u12 hnwany more protons than electrons do -l(tku +nvwitze12h5 es this piece of plastic have?

  What is the charge on 1 kg of protons?+os dp.48d22 9 xvfjksrdkm8p

  An atomic nucleus has a charge of/ rv z-0h +2ghji*dein $+40e$. 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 che/ 0fmuclj8 nmn z/qyqa+1(x /arge values of 2.0 and -4.0 mC, respectively. What is the magnitude ofe (mly8m1cfzxa j 0u//+q/nnq the electric force between them?

  A 1.0-C charge is 15 m fr1.mml71lw czwkpso9 /om a second charge, and the force between them is 1.0 N. What is the magnitude o9mlkzsw m.l1 ow /c71pf the second charge?

  Two 1.0-C charges have af;/efs k6wly; c sm7s; force between them of 1.0 N. How far apart are they?

  The force between a 6gz dz,ulne3/$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initialpa)pqb25 v -wyrcfu 6:ly 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cmqucv p5-wy6f )r:b a2p, what is the electric force between them?

  Three identical point charges of 2.0 mC are ncyoi sv03+u p-d,xa 3placed on the x-axis. The 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 are the magnitude and direction of the electrostatic force which acts on the charge at thipo+ 3xus3vy c n-a0,de origin?

  Three point charges are placed on the x-axis. nal2rj g t/aetq1 +-br*m 4gpsg)/n3 r A charge of +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 1l4snbpqt*an jrmggte3ar2 rg //-)+mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC atq/1 :xpagslqh( .pwn * x = *q:xp wq1lpg. h(/nsa1.00 m; Q2 = 3.00 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 at thi)ze-b;h sg g7e center of a square, and a second point charge of -Q is placed at the upperz)hgb7 eg-si ;-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 at4eg1ki) su(flr89wv* ndgpt / (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC cht*nd8)g(f9 k1 uersi gwlv4p/ arge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atc8nhe8 de50om (0, 0). What is the direction of the net fcmn8h o850eed orce on the 5.0 nC charge?

  Three identical charges b -7jd2i+ok:(jb g; mlokxu o n2wru,*of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the -o o(2:gx kjkjb 2u,mub rwdno;*l+7i magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges 6,0lyl,: pi.q wxkvo i-9i6*r e aofsrof +Q and +4Q, which are separated by 3.0 m. At what point, on a line betw-okx lwo if.,,lp 6v09irrs6a i:*qey een 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 = 4.0 m. Wherebfp(o6ri/4 tir97y 6ub g ,zrm on the x-axis can a t b, 67 f4rtyipi6(rzobm /9ugrhird charge be placed so the net force on it is zero?

  Charge +2q is placed at the origz kf 5.8e/d9kjtfs5 nxin and charge -q is placed at x = 2a. Where can a third positive chsxkt.n5 f fzjd8/5k9earge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A std+ w/(f zp8ctotal 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 al+4lw itdz f3ay+gen,11k6 bt gainst the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the pro364 b1nt zwkyl+dlg,i1 a f+teton?

  Two 0.20-g metal sphet9hq500 b hnmv9jbh5 b 4epzy.ulk5m) res are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostalh5hqh v9b)ut5bm pb m yn49k0e.jz5 0tic 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. hvx/lz) y -w/5a/k/kklv21bc g 4w ysiWhat is the magnitude of the electric field at a distanccl 2s yh/v /kwal1k-i)/5k y/4xwgzvbe of 1.0 m from the nucleus?

  What are the magnitude and direction ofp;f9skhzt xc km6)8boa3xl b(p8 bp6) the electric field at a distance of 1.50 m fro8ofb3 klkmx)6 b)pc ;6(9ptsa xbp8hzm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude oobdx * lh3jlx.01q urojgz r*a)*x *x,f the electric field a. lxqb*r0a r hooj zuxx)x*,jdl13*g* t the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. kv y77kpgwc(n y,9:fuex0 *osWhat is the direction of the electric fieldn7we,cy( 7ofxgsu0:* ky pk9 v?

  A 5.0-C charge is 10 m from av9q3: 9qhpxmmc:)6b v; hcvm i small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at t p mh3;vh6 m99ibxcq c)v:q:mvhe location of the test charge?

  Two point charges each have a valubth ftx 8 4pvd40ss2 etda59 3-f2hbhul4.hj ze of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two fufhd e4t 5-42httzhj3s0hdxbp8ab.9 24ls vcharges?

  A 5.0-mC charge is ptnoxah72s9 c+ laced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at ts x279+otnc hahe 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at4b dq,zw4 ia7t the 0 cm mark of 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 is the electric field zet, d7iwqaz4b4 ro?

  Two point charges of +3.0 mC and -7.0 mC are placed ny ,*dc2xtql u0 59uxoat x = 0 and x = 0.20 m. What is the may5n*t uudlc2qox0x ,9 gnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of )y+(no1e ngm3ojlzv:a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thev3o)1 m:l j e+gyznn(o electric field at the center of the square.

  Consider a square wh 1r+ - n(7y aajcazz++g+dw ynoqprl50ich is 1.0 m on 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). What is the magnituderw+y+q+d0jz51ponlarn z( -aa+7 gyc of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 m j vvw.njzlkx/+)o9 e3tb+g4eC when it is placed in a uniform electric field. What is the magzjwlev9)4 x+ bnt+koge .v3/ jnitude of this electric field?

  A particle with a charge oe ;p-yf lqm + ddy34 c5a)(qlf8rxah;crbq7b-f 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 field oj*1za dg6ry/y9p m4a*q sns0 ef 6000 N/C pointing downward. What char4/ ap nszayq6*gj*1 9emsryd0 ge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g cde h17qrcs;6garries 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 magnitude and ghc6 e s71r;dqdirection of the electric field?

  A metal sphere of radius 10 cm carrcjech cjm r+0v*6fd+ 1 cjx9+cies a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surfacec0c6c f*+1xjd+ cv+mh jr9 cje?

  A metal sphere of radius 2.0 cm carries a a c9p9/9g cenw:d;iricharge of 3.0 mC. What is the electric f99c/gwa :n ii 9pr;cdeield 6.0 cm from the center of the sphere?