State the law of conservation of electrsl0p.p-8mjl *a iop kteb( 1ru5+ w.ic helb7*ic charge.

  Is it possible for two negatfcru wm5c2xjba2dy1a3cw4) 3n; uv2 d ive charges to attract each other?

  Is it possible for a positive and ad8g.:r1 dfp tun6 lif* negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Duringpi q)s.8l7ws/175l c khd bzaq the process the glass rod acquires a positivewlq l7 i7scdq) .hsp58azkb/1 charge and the silk

  A proton carries a

  The model of the atom shcq/*kbla ij51jn h6-faa: p3h ows a

  A neutral atom always h5 m+nwv;uh .ai1ek e:kas

  An atom has more electrons than prgcx ,xb6nq8p*7y2 qks otons. The atom is

  Materials in which the se 9+-ylg;dz8dzbu :kelectrons are bound very tightly to the nuclei are referreb9sdyu: l ;-d e+k8zzgd to as

  Materials in which the electrons are bound very loosely to the nuclei and can:)xpa9n/;h 2jigqe q p move a)phx9p/qj giqan2e ;: bout freely within the material are referred to as

  A negatively charged rod is brought near one end o3e5 i(x1m fc1pp4pylof an uncharged metal bar. The end of the m4xpy(5om1i f3lpe cp1etal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They q/ bxhamlo8q cr52,:w are placed near each other on an insulated table. Sphere B is briefly touched with 8,caqb ml2q /r:whx5oa wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pos8c )jv on19xdt+kon2u itively?

  An originally neutral electrosd y: da2+,u0acrzr40xpvtm1 ecope is briefly touched with a positively charged glass rod. The electroscoev zd0rtx:u24c p a 1y+,a0drmpe

  An originally neutral electroscope in* vug tv/cf-/r *t0wgs grounded briefly while a positively charged glass rod is held n*n vuf/c *gt0v tw-/rgear it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electrosco6 wtvm3b.t bnbd,dk(4 /lpm 7vpe, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to thedvtpm(7 6v4/ l, d. nt3bwkbbm leaves?

  A large negatively charged object is placed on an insulated table. A neutra5 sy8j m;3zkkqt1p;jm l metallic ball rolls straight toward the object, but stops before it ;zpts18jqy 5;kj3m km 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 ball?

  Charge is

  What are the units of the Coulomb constantkv(-p js urq: ,1)xstb $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lark9v g*v+ 0eotbger in magnitude than the sko+tb9 0*vgev econd charge.

  Sphere A carries a net charge and sphere B is neut/k df qt+h:8uj9dx+pk if 0u:tral. They are placed near each other on an insulated table. Which statement best describes the electrostatic fo p:t++9 :qh duk8tffij0uk/xd rce between them?

  Two charged objects mmf *xl 8ya0p r,:6dynattract each other with a certain force. If the charges on both objects are doubled with no change in separa*mp 6nlm f8y0,drx:y ation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forc0std.rjyv-b/4 :3(cjjti kpaes of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forcetjs-rkjjav/ 3td.(c 4y:0 pbi s?

  Two charged objects attract each other witqwd1i.m : g:pfh a force F. What happens to the force between them if one charge is double:1 dfpmiqg w.:d, 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 prhd: -b pxy8vn;oton are separated 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 fiy d-v;:x8 pbnhrst electron?

  An electron and a proton are separated by a distance of 1.0 m.a u8r ;y-yws e4.rorv, What happens to the magnitude of the force on the first electron 8wse ,ruror4.ay;v-yif a second electron is placed next to the proton?

  An electron and a proton are seftnf 0imt*0j.lh.6 a j e)8mmaparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer t.am6 jfm tnam0he*8it f0)lj.o the proton?

  A point charge of +Q is placed at the center of a square. 1m u gp2u;fnfd* 8iif+ When a second point charge of -Q is placed at one of t8muu+f f;g pn*2f 1idihe 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 charge at the center of the square?

  A point charge of +Q is placed at theytf9l4dpi 3 gr1hj-p- centroid of an equilateral triangle. When a second charge of +Q if-3p yhlt- 1jg4ri9d ps 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 jx40nn/w-jy4w. *ypmt dn0lna vector?

  At twice the distance from a point charge, the strength of the electric fi,d5e6gza 5nus eld

  Is it possible to have a zero electric field value between a negative and positop 3jntebh cd( z.3)b3bll: .yive charge along the line joini(ljo.ce tp :b) n3lydb zb33h.ng the two charges?

  Is it possible to have a zero electric field value between two positivj 79 jr2jrp:ome charges along the line joininjo79rprjjm 2:g the two charges?

  Electric field lines near psitive point chargestwaqh) 21c+uxo3yjlj9. u3xw

  The electric field shownbdv -uz(l1j s0.r.t ukw6fz19 zqx)lk

  Can electric field lines intersqv /ghmmgx )bv 9:p:9ject in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ensuv 5 zsp+6n: j ya,c9c27:hp m/vzwzs)n 6jplectric field. Give a statement concerning the electrim56hs wu:+2jzjnpy)cp7v9n vpz/ 6 sa:zsn ,cc field in the block's interior.

  If a solid metal sphere and a hollow metalsbuqq1 5o 25dgxlw n 9bfu,6p* sphere of equal diameters are each given the same charge, the electric field (E) midway between the c bq5*u ,1ln5p69oguqfbd x 2swenter and the surface is

  A cubic block of aluminum rests on a xq.;dgo at7l1wooden table in a region where a uniform electric field is directed straight upward. What ; d1.otg7xqla can be said concerning the charge on the block's top surface?

  If a conductor is in electroc+ zi0x7 xdi vnnoe6+;static equilibrium near an electric charge

  A positive point chargek8q-;bolv q cw--mc73, drbgp is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the holm qrb--op-w v qg3d cbc7,;kl8low sphere has

State three properties of conductors in static equilibpk/5ajc0ittf/:pdx2 js n;;nd fu7 ehhd m(*8rium.

State Gauss's law.

  The charge carried by one ele1d m9k6xoir q/ctron 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. 5,jfn who:x: f How many more protons than electrons does this piece of plasti5jxh, fnwfo ::c have?

  What is the charge on 1 kg of pro9g/up q-p8u obtons?

  An atomic nucleus has a c/4(9r1r.8sn gf wyttkoz auh5harge 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 -40ttn. e,gmx qfie/ ,m4.0 mC, respectively. What is the magnitude of the electric ./qtixte,m,f04emn gforce between them?

  A 1.0-C charge is 15 m from a second charge, and the jrq4/auhue0g 8v /e(rforce between them is 1.0 N. What is the magnitude of 0je 4ug(uv8 qrrh/e/athe second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart aq9-)6e *o+bmc qbvc jtre they?

  The force between a kla2ah 5iiq + aof 80*8oli86vg5ypbd$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.8 oj7x4)jhw8hh yy g4h0 cm apart, experience a 1.0-N force. If they are moved to a new separathjyo 8hh)4w jyx4g8h7ion of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on xh0x xy,). usyph )md(b:x-cathe x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and theh0xu.x(:xy,d am)xyb p shc -) 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 6 oamlvdm6d*ysop+b:0/ 3lcuthe 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 / s yl *db+ucp6 :6avdo0molm3and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 =ml+a y56cgcm/ mc5a;7lh ov.c 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x hal5lm 6m .vocccgc y;75am+/ = -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 secon0:av ycytxbtl6fja);-1 n qo:d 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 centerqva: ajxttl0y:)n- o f1yc;6b. 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./iyo z;j0 -nu wmdx/u;10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 n-wuu/;xy /mj0;zn d oiC charge?

  Q1 = 6.0 nC is at (0.30 m, 0 hx*j0k94osq.ieq 6 zj); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What iszqqj0hkeo jx*94 .i s6 the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placgvn0p)(;jl g c86lb.l/p exxwed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the chlj g) (epb.0/ wl6vnpc8g;xxlarges?

  Consider point chargeswky- *3rwjr t2 of +Q and +4Q, which are 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 force acting on iy 3wjt*r-kr2 wt would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = gi3 :owkkwgt7 u7bp/84.0 m. Where on the x-axis can a third charge be placed so the wgtg u8:k37po/w k7ib net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed 6tg2 v y4lv( 4gr x4g*mpqo/vmat x = 2a. Where can a third positive charge +q be placed so that the force ono4(t gm*x pgm/4yrv4g2 q v6lv it is zero?

  A copper penny has a mass jm8zfu )3c72qi fou( gof 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 forcgc cc6 4irx:8te of gravity by the attraction of a fixed proton some distacx ccg8:4t 6irnce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are h fqe 3nss.r.q z ob7mpe)(j4+l aqg.y:ung from a common point by nonconducting threads which are 30 cm long. :(qj..7p. qs3syg nfz a rbqo)el+ em4Both 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 the magnitude of the el7+.kh(wuziq b y8tne 1ectric field at a distance of 1.0 m from the nuch k7qwez y(ub.t n+18ileus?

  What are the magnitude and direction of the electrch m6s/ 8u7b- +wyrm)j)ir bwlic field at a distance of 1.50 m from a 50.0-nC u) jms c br78y-wwrlmb6+h)i/charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the es tp b3 /t,0rnjy*gr2flec r j0r3tt*s /fp,bn2gytric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. zpqw eqcn(3ohr/ ;h63 What is the direction of the electric fiew3hrzo;cn/ e3(pqq h6ld?

  A 5.0-C charge is 10 m from a small test chadu*a,u. g s3ms3psp:e7y9anerge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tgpd spa9u 33uanees,m7* ys :.est charge?

  Two point charges each have a value of 3.0 C and are: (t g1k,hi:tf;6dczdjvj0bh separated by a distance of 4.0 m. What is the electric fielc bitd t1zk0j:,:6 d j(gfv;hhd at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0dz*ksd.eu)aj2;x;t3; loe xg dm.yd9 mC charge is placed at the 50 cm mark. What is the el;ud .;joxm e)d zdex sgkl3*;a9.dy2t ectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sxs/rtcq h* x* rp6) mzy o;z+i2,xl5bctick and a -4.0 mC charge is placed at the 5pzc+xl*xm y / 6btrqi h z)csxo2*,r;50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and ;xrdkbet l6h /08 6ebxk5njm)-7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point mb kemk8x)0rbd;lt6 e5j n/6xhidway between them?

  Three 3.0 mC charges are at the g)dr2y9r0mp4/l p ohpthree corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fie/ rpphr9m4lygpd2 o0)ld at the center of the square.

  Consider a square which is 1.0 m on a si4 l.z-lkt: eyhde. Charges are placed at the corners of the square as follows: +4.0 mC al -4ekzy:t .hlt (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 field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in az (dob+v:odgv 3cy ,+a uniform electric field. What is the magnitude of this electric field?+vd vcy(zo a+o:db3g ,

  A particle with a ch5 8 yyttnp7d8carge 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 placed in w r5c+in1q/p 1ilz/wqgcd07zan electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it ton w7/crq 1/izg50zi ldc+p1 qw be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The bal:p+ rck a2vl 4h,tjmh 9)+kjmpl is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and tchpl jm,h)kj +ra+42v: km9pdirection of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2txy-p7i ,jg 9d.0 mC. What is the magnitude of th-d9,ty igj x7pe electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the ele-:c8jwq7 xa/ o-u g8s9q)+tes hjcthactric field 6.0 cm from thea9 hh+-saet)/xq jg7sc-t cjqo8 w8u: center of the sphere?