State the law of conservation 5v5 7 .2 xz4vwrgcshuo9eps-c-uif o/of electric charge.

  Is it possible for two negative charges to attract each oth kt,la8z0w;nz er?

  Is it possible for a positive and a negative qr 0fumu z5h8-charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the vgv rm 04:xlo3glass rod acq 4g vx:ml3ro0vuires a positive charge and the silk

  A proton carries a

  The model of the atom shows4 preh, 6s57ubjr9 0tu8gqbvh a

  A neutral atom always 3r 1pls37mt ichas

  An atom has more electrons than protons. 2kq hr(1nmqpldc3;n obv * j6; The atom is

  Materials in which the zm w4bgu/x o*1electrons are bound very tightly to the nuclei are referrw4bz xu *gm/o1ed to as

  Materials in which the electroa c1.4xf3jfwz y;0w7by4vsrkns are bound very loosely to the nuclei and can move about freely within tv4za yfy014rjx w.; b3kfswc 7he material are referred to as

  A negatively charged rod is brought near one end of an unchsdll8)ja 4b q qo7l qaw+6po1:arged metal bar. The end of the metal bar farthest)a7lb46 s1pqa:8qo djw ll+oq from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. x8te; y5h( kuoThey are placed near each other on an insulated table. Sphere B is briefly touchteoky(5 ux; h8ed with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroskjab ov-* 3556qeitw mcope positively?

  An originally neutral electroscope is briefly touched wm2n /b .6kfp3 81h.j6nr tg3scmon uglith a positively charged glass rod. The electro1c hn6jm.t/rng6bp usg nk33m82fo.lscope

  An originally neutral electroscope is 1uudw 3 q5; puptk/ri/grounded briefly while a positively charged glass rod is qwt/ 3/rui1k5;pd uu pheld near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. (ewg,*lqa akjma8 3,d Then a negative object is brought near the electroscope, but does not touch it. What happens to the leavkq m8(a3lejagwd, ,a *es?

  A large negatively charged oc 4qf h/d ei 1zsna3o m+ ,d;dzw3uipe;sz*k:9bject 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 rolls forward, but does not touch the negative object. At no time does either ball touch the negative object. Wmiwe zsfzape1c93+ d4z;q kon u*s ,;i:/dhd3hat is the final charge on each ball?

  Charge is

  What are the units of the Cij+kldq(a9b0rcro6 l15y z +c e.vk.(o)l ueqoulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a diqy6g y*yb 4+ox0 g4wwwstance d. The first charge is larger in magnitude than the second chag 46bxg*0q y4ow ywwy+rge.

  Sphere A carries a net charge and sphere B is neutral. They are placed c5-576qwd.yrrfrek b near each other on an insu6 y5e- .qdcr7fwk r5rblated table. Which statement best describes the electrostatic force between them?

  Two charged objects att u6c043z pw hdb4kmd)dract each other with a certain force. If the charges on both objects are doubled with no change in separation, dkd 04b 6cwu43h mzd)pthe force between them

  Two charges are separated by a distanceqvpl +7yf1-njf.dtr 3 d and exert mutual attractive forces of F on each other. If the charges ar-vtprfd1nl3f. jq + y7e separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attractktby* v:8 fijse85an7*gm:s j 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 them*:: ysnjbi8*k8 gf v5s7aj etir 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 1.7v lidc0g m tlyi)+e/10 m. What happens to the magnitude of the force on the proton if a second electron is plac tc)/l 1 7imy0gidv+eled next to the first electron?

  An electron and a proton are separated m iul t844u4hjby a distance of 1.0 m. What happens to the magnitude of the force on tmh4l8iju44 t uhe first electron if a second electron is placed next to the proton?

  An electron and a proton are separate m(zsh+bx1f/s d by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved1+xhm/sbzs ( f 0.50 m closer to the proton?

  A point charge of +Q is placed at the shqtvl486 lb. igt0 ;bcenter 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 at the other three corners of the squarqbv6st8;b 0l4lt.gih e. 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 equilateral 1yu*i6b vcf7wtriangle. 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 center charge due to a third charge of +Q placed at one of the other vec7b vi6*u1fyw rtices?

  Which of the following is not a vecunkub5 n2fu7k dg)lz ; te*9a,tor?

  At twice the distance from a point charge, the strength of thzutr i d/,k(z6e electric field

  Is it possible to have a zero electric field value between a negative an wwvpk* **x;s p:snxs5f4tzio3u 4ut3 d positive chargep t5*3sxu:w *kxnos4vi uz t4p;wfs*3 along the line joining the two charges?

  Is it possible to have a zero electric field valu)6zxw cuq- u-(qhka;b jm0o3le between two positive charges along the line joiningokqbj(3ca6w;xmuz - 0)lqh u- the two charges?

  Electric field linesq/ -cjhm/ aq90+jgk vy near psitive point charges

  The electric field sedzu;c 5w u.f8l1 w:cbhown

  Can electric field lines intersect in free spact)b)6 3fck nyhe?

  A solid block of metal in electrostatic equilibrium is placed in a unifov/ go7.wkeb j7b t7ib8rm electric field. o.7tbibv8w j7kbe7/g Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of eq/ek.a2hg e5pe ual diameters are each given the same charge, the electric fiehe . epe/5kg2ald (E) midway between the center and the surface is

  A cubic block of aluminum rests on a zlz4g5 un. wu)he09gm wooden table in a region where a uniform electric field is directed straight upward. Wh.4 lm5nwh g9gu)ezz0uat can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chargehlpq +q:u0t +m2cvkf (fg2fi 6

  A positive point charge is enclosed in a hollow metallic sphere that is ground(3jsyb sc6 a wgpbj.;(ed. As compared to th p (6(j3. cssgabjybw;e case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrium.3 h +fcc3fxps4

State Gauss's law.

  The charge carried by one electron g) 5q qo. r.pfti3ww2rh8t6nk l8hx+mis $e = -1.6 \times 10^{-19} \; C$. 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. :v6 yj /tjwurz4mnl35 How many more protons than electrons does this piece ou4mrjyv:jzn tw65/3 l f plastic have?

  What is the charge on 1 kg of zxb v1-lrl 7cv,n*a29nujn7kd(m9 lrprotons?

  An atomic nucleus has ainfyqdya3(6 od4* :k o 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 mCzg7ed sgqz 0(r9(wplq00fsi1, respectively. What is the magnitude of the electrir 1qqgizsp9lf(w(s 7 00d zg0ec force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 Nrfx:cg3+a k) k.i(hqp7nsb6 a. What is the magnitude of the second 3k7ak:(sx gha bfcn.qr i+p6)charge?

  Two 1.0-C charges have a forc+xn n6cgwwl/ *e between them of 1.0 N. How far apart are they?

  The force between a / u8rv o9w6;e/fznlg x$30 \; mC$ 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-N2dk mtw(8mdoxf *m;q bq.2x *p force. If they are moved to a new separation of 8.0 cm, what is the electric forcpdo ;b2k *qmtdxfm82wq.m* (x e between them?

  Three identical point chrgm st5 s)du6 8g- r8u9pqqs,harges of 2.0 mC are placed on the x-axis. The first charge is aqqp96 hsr)usgugr8-8d ,5tms t 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 the origin?

  Three point charges are placed on the.vk6vspd; r62zrt:un x-axis. 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 mark. What are the magnitude and direction of the electros ;dr6vk: rpuns vz62t.tatic force which acts on the charge at the origin?

  Three point charges are located at the following positione ) xguv-8l/uos: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. u geoul-x 8v/)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 second point ch rd9:4sn xaik:arge 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 actd s xkainr:94:s 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 8q0( mzqexs1alp7 ::i aud e,uis at (0, 0). What is the magnitude of the n x: 0(1 smu:qa7iu8z,aeqel dpet force on 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 =*.u(64 kl.yss s5; q eawyrgha 5.0 nC is at (0, 0). What is the direction of the net force on t . s(k6.ueraa4gsq* 5;wyl hyshe 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verti+g i7 ycbnr2rw),-hyh ces of an equilateral triangle which measures 30 cmc )y -hy+bw ,rri2hng7 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 separated by 3.0 m. At whates(q nssvf0abz(:15ufu9 ;gs point, on a line between the two charges, would it be possible to place a charge of -Q such that the elecsqufg(s(su e1s 9 ;bv:5 a0zfntrostatic force acting on it would be zero?

  A +3.0-C charge is at th drqh+l+p/c5sai8 )the origin and a +9.0-C charge is at x = 4.0 m. Where on the p+ sqt8l/)a chri h+5dx-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed af 4y3mbs6yf- ct x = 2a. Where can a third positive charge +q be placed so that thcy-sf3bm y6f4e force on it is zero?

  A copper penny has a mass-*-qe.d.r uo)kb fnk f*)lv nw of 3.0 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 a fix0yw p- y* ;,xkm0,bvwky(ic rved proton some distance above it. How far above the electron is the proton?v ; yiwy,0v-kx ywkr(*cb ,0pm

  Two 0.20-g metal spheres are hung fro9 qo8nr5i yu4oii5 mv:m a common point by nonconducting threads which are 30 cm long. or :5i954yo8mqi inuvBoth 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. What is th 2jf ee,xctc)s8zs8ky3 .v -yde magnitude of the electric field at a distance of 1.0c3e ky.j-fz2y 8vxs,)st8dec m from the nucleus?

  What are the magnitudq(s+6s+ xa-b* ot*r/ic lcysbe and direction of the electric field at a distance of 1.50 m from t+a issycxc+l*(b qro -sb/6 *a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude*ojz 99;jgj a ejmz9v8 of the electric field at the location of * v;oezj9jjmj99g 8z athe test charge?

  A 5.0-C charge is 10 m from a small test charge. rc 1wgyub1( 8p96xc fg What is the direction of the electric fip6xu9fcrb18gg( c1wy eld?

  A 5.0-C charge is 10 m from a small test charge. Whubhy-*;9d0yse :acoe,uvo 4f at is the magnitude of the foucyo 9 e:e f*y ,0suvb4h-d;oarce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value ofdt8wl:ss n 0;3e;dic v 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway betweelns twv:ic ;;s8d0d3en the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick an) vw;ytd0xcg .d a -4.0 mC charge is placed at the 50 cm mark. What is the electric fi 0cv;tw.dgy)x eld at the 30 cm mark?

  A 5.0-mC charge is placta+y+psfi, xgn (0kq:gm 2m ,ped at 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 joi,p+fgt ,s 2( m0gan +xmki:yqpning the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7 0cealq9)fi0j .0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between thema)90 q jilfc0e?

  Three 3.0 mC charges are at theim drn.tb**x;k7e)se three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge.) bmt.ire 7;*xd ksne* Find the electric field at the center of the square.

  Consider a square which is 1eg4cq7. lwlkyt;*x + l.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 magnitude of the electric field7 cy*wqlel;t+ k.4 lxg at the square's center?

  A force of 10 N acts on .c-wp4*wjghtc 8z ) gta charge of 5.0 mC when it is placed in a uniform electric field. tz)tc.*c8wpg -4 j wghWhat is the magnitude of this electric field?

  A particle with a charge y*8 88mn0ofez .jewxe of 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 placemjwi6duh * +.dvp 04u xnig1n5d in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball fj m5dnni1u * w.6ighux0dp+4v or it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is piccr x+tsd6 ( vw/ (.m b;vjliyxc:-p.laced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electricdc rxc/l - ;vt( :xci(m.ivyb6+p.jws field?

  A metal sphere of radius 10 cm celsgn(w 9tvi; h. oh)5arries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 wlhh ).ivsg( t5o 9e;ncm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 1ni. :q*rnt ow.q.danmC. What is the electric field 6.0 cm from the center t qdr noain1n.w:* ..qof the sphere?