State the law of conservatio6y2x0 o*.dd9 wkrs gopn of electric charge.

  Is it possible for two negative charges uxvo5r(n crm; bo5 (7zto attract each other?

  Is it possible for a positive and a negative charge c/)( yt2sc vkjej .7qmto attract each other?

  A glass rod is rubbed with a piece 3lz5 k-574km0)q axrb8srg8 mdrhrc oof silk. During the process the glass rod acquires a positive s )rkxm8g85 qb5 7rcamlr3o-0zdhr4 k charge and the silk

  A proton carries a

  The model of the ato phy4lbfr 1 1tn7.l bmg.rk3(xm shows a

  A neutral atom always -/jis9ue i4xqhas

  An atom has more electp:ah0ivrlk 5liz9(wf1j - tl;rons than protons. The atom is

  Materials in which the electrons are bound very ti l b68dip.xac/-*4c ftu0ovgxghtly to the nuclei are referrv/aoxt08u lpi.bg f4cdxc*- 6ed to as

  Materials in which the electrons are bound very loosely to the nuclei and 7dim6b/c 9gw 90+wazgmdo:a 5nee.wd 8 h5 aypcan move about freely withinc5bieo0a m87wy 5a .nd9:dw+dzp/ ewggh m96a the material are referred to as

  A negatively charged rod is ,j6mn5nw, uuoxmaprf84lm9j-w 0 h5gbrought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged ropu9 u, jhmxg5w,0r8 4nm5a onl6mfj -wd will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plac,y er(;*rjd sjed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is coryr;dj,e j*(r srect?

  How can a negatively ch svw4 h:3yjcj g-by7;karged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touc6i *wo;wgp3o e5oyw/zhed with a positively charged gla3*g;oo 5wipw zy6/weoss rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively 9q hv o: ewn6s*ranug)1.el-gcharged glass rod is held near it. After the )6gon h gn9lu.:ve*sewa 1rq-glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and 73shrn,zv8v 8ouh0 o pc0us8rhw oa:9 the leaves separate. Then a negative objech, w:8c7 0zsa30uh u88n ooops vrv9hrt is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively chargh -n x.fh lj1nzy1c32 rqpq;j:ed object is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops befo-j h2. xzhn1q1fq jy3l c:;nrpre 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 charge on each ball?

  Charge is

  What are the units of the Coulomb constant spl+i 9uu1 0k9ly8nly $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge isw:mk 80:bntn j/fi91w-*cirrmalb1 v larger in magnitude than the second vbf9n8l0-1tw rr:bw kj/c 1mimai*n : charge.

  Sphere A carries a net charge and sphere w r/kbsgb6,c/ B is neutral. They are placed near each other on an insulated table. Whr/bgw ,sc/kb6 ich statement best describes the electrostatic force between them?

  Two charged objects attract each om1 e7dz6wzbbd2k; kf)ther with a certain force. If the charges on both objects are doubled with no change in separation, the force betwzwd1 2f;debk6k)7b mzeen them

  Two charges are separated by a distance d and exert mutual attractive foad ig7jqrsqb r(l;k2me34*(m f3 0s/ ns2m fhorces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual (7n43ie/kmf 2*grj hlq2 mq( rosb;3a0dsmfs forces?

  Two charged objects attj1- q00hhoy)opm t19 x7is b/hxrbsi1ract each other with a force F. What happens to the force between them if one charge is do )/i ob1hh90hijp omqx0srbs1-7t y1 xubled, 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 separaf+n mfa//:u afm.frq/ted by a distance of 1.0 m. What happens to the magnitude of the force on the proto/.maf:ff / +/fmanuq rn if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens totzyt5;ks8fj, sy m9s- the magnitude of the force on the firstyyts -z,s8 ;kmstfj59 electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distancew vwssem128t35 :wpje of 1.0 m. What happens to thv5w :wtpw ms38j21 esee 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 the ce9gg76*sx -jcx y2syfenter 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- x*fgs2je6yys79gcx 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 b+af jc-b;5q st:u8h wof an equilateral triangle. When - sawb8qf+j; bt5uch: 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 vertices?

  Which of the following is nowoy 3*6kw2 nlht a vector?

  At twice the distance from a point charge, tf6u.2lxhmdm0 he strength of the electric field

  Is it possible to have a zero electric field value between a ne 5 w8r q2-0fu4bhwluf*osae1 hgative and positive charge along the line joinibwr u w- 52ulah*f4eh8 sf1qo0ng the two charges?

  Is it possible to have a zero electric field vyns- nwlj;)he+xc 4pezn; 9f;alue between two positive charges along the line joiningps - +49z n ;hcfyjl)ex;;ewnn the two charges?

  Electric field lines near psitive poinla+a5 vtk5y:ft charges

  The electric field shown.1t7dsgm i4eriauihouuz 1 eo*(d.x,vz ,8d )

  Can electric field lines intersect in free spacehax s+)*2a7fftzy x 1y?

  A solid block of metal in electrwdzjxjcr1-rrun mt ddz;-/,ry8 6 0j(ostatic equilibrium is placed in a uniform electric field. Give a statement concerning the elect-j8uj(dx zd,zdrt cm jr1-r/yr w;0 6nric field in the block's interior.

  If a solid metal sphere and a hollow metal s9rf )wn+a7b l.a(yk1 bqiwv :fphere of equal diameters are each given the same charge, the electric field (E) m97br1wby+. n:wka(vi f)alq f idway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform4ce7- 0 ge rnphulih,- electric field is directed straight upward. What can be said concerning the charge on the block's-,pu neli4r cge07h h- top surface?

  If a conductor is in electrostatic equilibrium near anb/)je 0 mbzjr( electric charge

  A positive point charge is enclosed in a hollow metallic sphere that i6wkkv:o h*(ens grounded. As compared to the case without the hollow sphere, the electric(o*e6: hnvkw k field at a point directly above the hollow sphere has

State three properties of conductors in stmusro33/e r d,h6rid3atic equilibrium.

State Gauss's law.

  The charge carried by one electrrkxkk gl9..:q3wccq3, aq(9 xta rab3 on 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 many more protons than ele q, tqabz2;n(wq;z/uf ;qwq;2,( banzzq/ tufctrons does this piece of plastic have?

  What is the charge on 1 kg o5p5)fem vos 4c/ 35xdoc6uzt xf protons?

  An atomic nucleus has jn te6s/6,d vp)ca nqf3 b3eddqm4bfwl97d8; a 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, have7g, c,xf36: alm fv3vn5fd xod charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between thgm7xal5 vv df ff6n, dox3,:3cem?

  A 1.0-C charge is 15 m from a second charge, and the force,5hgek:c-0l l9uo lzz between them is 1.0 N. lzck:09,g e5lh l-uzoWhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them ofss e81un) ,xhk 1.0 N. How far apart are they?

  The force between a b de5k88mue 1* 17kaagri2iqn$30 \; mC$ 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. If5namds1w 2is.2e dwv/ they are moved to a new separation of 8.0 cm, what is the electric forcend2msvi2 5/wa wdse1 . between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Tha4cgedt xa s+f445;e 16braewu5u d;fe 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 forc;4wa6affe5ca5 drt esd;u+4 4 xe 1ugbe which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC ib e7m f4o4c0qzs 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 electrostatic for4q7emf0zo 4 bcce which acts on the charge at the origin?

  Three point charges arejal+0xs(vu + f located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC v(u fjxsa+ +l0at 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 second lcn3gm kbp e8up: j04s4.vkrkgo j +/(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 center. What is the magnitude of the force that acts on the mp rjoc0j4bglngv+k :(3 s.8k4/ekup 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 isz:t nbg n0;9e7x+ p at)botd/i at (0, 0). What is the magnitude of the neteot9 p + )ang;:titb/0n7dzx b force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 zxc;zlb4i8;hm+v825a g tf v cw +81kvis0hwr= -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 5.8xgzf2wlhv;4+8hi;5 mzcks + r10 8wvvca tib0 nC charge?

  Three identical charges of 3.0 mC are placed at the vd7gjg6wh2 u/rv3h*hd 60lbrjcgt 3l . ertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrosta . ch3v3h* uhdtg6brdjg2 rl/jl7w0g6 tic force which acts on any one of the charges?

  Consider point chargei;py klt7qfjktwhydr)2i(f3 3*n 7,cs 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 suf (l qc,j 3wip kr7* )nft2y7;yt3ihkdch 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 at1 *t1dj:flqht x = 4.0 m. Where on the x-axis can a third charge be placed so the *1tt hdf:l1qj net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. a:;h+5ki .s nxxdbh 0oWhere can a third positive charge +q be placed so that the force onb nx+d5 osxkahi. h0;: it is zero?

  A copper penny has a mass of 3.0 g. d) , 5 0s3pud(sgolfbp 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 7os aynosan*y p:2aj ogqm b;,7xd)4di(n,q( against the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the pr:gx d*oqpa;,n 4,q )(b7ny s7ooa2y(majd s inoton?

  Two 0.20-g metal spheres are hung from jg poq1*zt,6orj5ml k5pg(q 6 a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion ,mrool( g5t6kz56gqqp*j j1pforces 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 th2ef)vff 6 k72 )ybm -pki)xryte magnitude of the electric field at a dista)k) m-6i2bt) 2py xyek frff7vnce of 1.0 m from the nucleus?

  What are the magnitude a6e95f k..y hs .clqddjnd direction of the electric field at a distance of 1.50 m fr9c.yqe6 hk..l sjdd5fom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thet./uw-bfzj+ s electric fiszbjf+-wut. /eld at the location of the test charge?

  A 5.0-C charge is 10 m from a small ,-lyy+)txb: j yh gtrku9e e21fp;4ug test charge. What is the direction of the elehyujp ;4 e9+e1b)f y2lxug-tk,ry :t gctric field?

  A 5.0-C charge is 10 m from a small test charge. What is th 7/ 8fnp8hixrde magnitude of the force experienced by a 1.0 nC charge placedr8xf 7/dn phi8 at the location of the test charge?

  Two point charges each have a value of 3.0 0 genf yk .a):squm7rimp9o:6 k4uy2zC and are separated by a distance of 4.0 m. What is the electric field at a pointokm67azer yimq:p)9n u.ygku fs:402 midway between the two charges?

  A 5.0-mC charge is placed at thuho zz) zgq22t09zqq- jjyi33e 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is t)g9-ti2 zy2 z0oqzj 33zjquqh he electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0g8n, sw- ;okiq 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 c;8ksqw-nig ,oharges is the electric field zero?

  Two point charges of +3.0 mC mx;ilsw1 9 zx;and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between them?lx1x 9zs wi;;m

  Three 3.0 mC charges are at the three corners of a square 9 ox.eold40nwof side 0.50 m. The last c0newoox .4l9d orner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0h7b9b0p/y *tqljj+af:d+c o r 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 fi*: jqdl7+yb+br oht pf0aj9/ celd at the square's center?

  A force of 10 N acts on ai g9grj plv,sh+;js 2ajv2 (k. charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude.kv,ja; grp+l hgvjs9(i22 sj of this electric field?

  A particle with a chargesa/) +itdb1zh 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 pl:ornnmq/e2y uc op:1u8-i g6 caced in an electric field of 6000 N/C pointing downward. What charge -:ogpiq8 1 6:2cmnu/r uceoyn must be placed on the ball for it to be suspended?

  A foam ball of mass 0.1l.*j1vhw8 texv6e;0kk ckk2 w50 g 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 magnitude and directiocwhkkw.0evxk; e 8 *jtv621 lkn of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. rqz q o)tt+m-;za s1 2+bept2g What is the magnitude of the electric field 5.0 cm fro-)a+z+et zbm 2;sqqt2opg1 rtm the sphere's surface?

  A metal sphere of radius 2 + 1owzxl;0vcz ck,l(3ojwuz 4.0 cm carries a charge of 3.0 mC. What is the electric fi zokzcwxc+o,j llvw(14 ;u0z3 eld 6.0 cm from the center of the sphere?