State the law of conservation of electric chargt.q1 pj-o2m751v;utal rckuie.

  Is it possible for two negative 0 wcxcu-o(2;1fd)wzfld ogb(e 98zoicharges to attract each other?

  Is it possible for a positive and a negative charge to attract ea2(cjr xc y,9nry*z9fach other?

  A glass rod is rubbed wit3lvmzmr)cb1gve7k az lnnh6z a65) 1;h a piece of silk. During the process the glass rod acquires a positive6;7g 6nkbz lc5z3 )rlm mznae1hv)va1 charge and the silk

  A proton carries a

  The model of the atom shows36qgmo2zjum27m c6z q jewd.9 a

  A neutral atom always 8 eaamx+u ak--has

  An atom has more electrons th 7xuy/rw :fv/i;: m)khoyzt(dan protons. The atom is

  Materials in which the electrons are bound ve(//rmf:gvcx* xv s(sfry tightly to the nuclei are referred to ac sm(vgrv(s/ :/fx* fxs

  Materials in which tne gk o(ktryi/q 2h061he electrons are bound very loosely to the nuclei and can move about freely within the material arygriohkq6/1(e 2 0k tne referred to as

  A negatively charged rod is brought near one end of an unbhzb3 4:)tbglcharged metal bar. The end of the metal bar farthest from the charged rod will bet)h4b b lzbg:3 charged

  Sphere A carries a net positigd; 3-kn2azsx 2lfu: zve charge, and sphere B is neutral. They are placed near each other on an insulated table. Sl;3kfzg zn-2:ux 2sad phere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively. npa uqelqoq4h0 li/ev3s 451( m8fxq charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargevts(dlux56a 1d glass rod. tulsa1 (dx5v6The electroscope

  An originally neutral electroscope is grounded briefly while a positiq7d e,8l+ae 4 g)ft2qtrt5tsz vely charged glass rod is held near it. After the glass rod is removed, the electro2 ,fe)lqas7t g5tq red+ 4tz8tscope

  A positive object touches a neutral electroscope, tu3pw xl2k*hm sghu15, ga m;168wluu and the leaves separate. Then a negative object is brought near the electroscope, but ;1623 g1 u5 m8 *,upwkxt smuhghwlualdoes not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tav63zko(dmv*khfnm s3 dn36y:dcfi j:g(q 3 g3ble. A neutral metalzd 3q6nhym k *i:jo g k6vm:dc((vsd3f3n3fg3lic 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 charge on each ball?

  Charge is

  What are the units of theqej;bq5hrz 59l ep:gai 9,; kt Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatnnwewsyhj i*u6 5z 6)4ed by a distance d. The first charge is larger in magnitude t 5 znn6w e*su6wh4i)jyhan the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed ncbc.c6)vmxf0 84fyoks6 /i ys ear each other on an insulated table. Which statement best describes the electrostatic force between them8c 6fcby.i0f/syv) cmk4x 6so ?

  Two charged objects attract each other wit9 qnn* gtdd5e 5)3oib8sez9ef h a certain force. If the charges on both objects are doubled with no change igne953*fd)q8b9edzsni e ot5n separation, the force between them

  Two charges are separated by a distance d and exert mutual attracw5qhg 5:wd+e zv.i rh(tive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?w 5rdi +qve(.:zghh5w

  Two charged objects attract each other with a forcn 1m3qgr9r9mri dhe 9rex+(9 te F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the sept1 id +grehmxn9r q 9r9er39(maration 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 z6hp: dgao1eg 5cqn,+happens to the magnitude of the forg p5qn ,6:+ehzc1doagce on the proton 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. Whatxal.n1fieu6+u6 c b 5n happens to the magni6nu+6lben i 1a.cf u5xtude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1ont7f g3d5 43ljru)xq.0 m. What happens to the size of the force on the proton if the electron is moved 0.5 f5g 4ox3)utrndql37j 0 m closer to the proton?

  A point charge of +Q is pla,r6rx 6 :zhu-dlm; leqced at the 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 areqer;rl, 6hzm d:6xl-u 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 the centroid of an equilateral triangle. W+o5r/kij c(a ghen 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 veo(cr kg5/ija+rtices?

  Which of the followingosq,jxo,qo9b d/qy; 3 is not a vector?

  At twice the distance from a point charge, the strni: 7zzya7m*hznzu hl;b. 70u ength of the electric field

  Is it possible to have a zero electric field value between a negative s (nn/zira k:1z)y1v l.nu*geand positive charge along the line joining the tweiz ()yr*v. a:ns1kng nuz /1lo charges?

  Is it possible to have a zero electric field valu3by2(8 dkjm uwe8 k6ibe between two positive charges along6 udjb ikwe28(bky8m 3 the line joining the two charges?

  Electric field lines nearo yl8l;k 1vshc7uc(i tx y+/msh1kc6/v7 /xzi psitive point charges

  The electric field shq pedx o)u2f 9k:g;;xaown

  Can electric field lines to /:5x.-n2fstcapj x. ,xkep intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform electu3 q;(s/, cjvvp9r al9dn/hd xric field. Give a statement concerning the electric field in the block's interixp9(,qd39/s ajv;dv /hl cun ror.

  If a solid metal sphere and a hollow medkhm91 bw n4 cy7+uh-ntal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and buc14+9mnyd 7kh hnw-the surface is

  A cubic block of aluminum rests on a wooden table in a region pj2 6ue iuyb(0l-d 0sfwhere a uniform electric field is directed straight upward. Whadui 0sbfyujl-e(0 62pt can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatixab bpa+mbc1zm)w*+)2b )sqcc equilibrium near an electric charge

  A positive point charge is wu08i sc50oouenclosed in a hollow metallic sphere that is grounded. As compared to the case without t w0c85 iouuos0he hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties ofv)eb tb+m40puewa 9 )x conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electrc37rhe2m/ w. gxlr n:qon 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 evif;jfan0v; hx2k cj- /a/1ynlei;f njc-/ aj vy12nf;/akx0hvctrons does this piece of plastic have?

  What is the charge onrq b+i / 5ungj/km8+mr 1 kg of protons?

  An atomic nucleus has a charge ofw j .9q40na-g8riz*h zh keij/ $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1trw r/rq dwucqs9 m5oe:4z ,pzy2an( a,/z,y 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between them?/4,2,r/zaywoyz qn dc5sm,e(1zu 9w :p rrq ta

  A 1.0-C charge is 15 m from a second charge, and the force between them ik6rq40:hg*knh2 qkf)b jg7l js 1.0 N. What is the fhqk*b :gj2 j 70 )6nql4ghrkkmagnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are they?67i4 yxpsc) xwf/jk2 wqb .sh7

  The force between a u q-z/ca+cprp5 y6ac6n,ozm-3l ,w u a$30 \; mC$ 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 dn;kg)khu38k+9dh f j;v/tdc1.0-N force. If they are moved to a new separation of 8.0 cm, what inkfg + 89ud;;3/v)ckkdhthd js the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-ax 4c 1.ckj(o o+5isahfmis. 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 direc+c j5(o4ks.im1co ah ftion of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 qlze /cx)3 chao;b4-:b;ow df 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 electrostatic force which actsd )oacc: f;wbxz/oq;b - h3el4 on the charge at the origin?

  Three point charges are located at the following positions: *4j vd;e)q cosQ1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -e;q v)j cd4o*s1.00 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, ant nz fr agwo77-f-l e9(opm80fd a second point charge of -Q is placed at l-g fw8zat0o7fe or-p9 7n(mfthe 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 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; o;s*a7qh9vb jz(ix c nC is at (0, 0). What is the magnitude of the ne; i7vb9;*acz( ohxjsq t 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+ 0r5:e:jzzx6s,xgg o 4onx ap.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on anz0ps xo:+4 :g6g,ez xj x5rothe 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at h- xy2 ;klgeg bgfqc+:j*ba k)9hjdb-- p qc3/the vertices of an equilateral triangle which measures 30 cm okb-f ecdp *l9:bh2q- kqgh) 3jb/-agc;j+g xyn 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 wmpqgo47a 3 ap*hat point, on a line bepog3 a*qa 4mp7tween 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 au62f4h ,c l8tv:dg pl:0 kobzmt the origin and a +9.0-C charge is at x = 4.0 m. Where on theh2 k ,cztfo4g lumpb8vl0:6d: x-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 at x = 2a. Wheak ct5 cw5p l2- ft c*ya,kpmp;k)y*;lre can a third positive charge +a**,-pt ya;t pml )c w25kfy5cck;plkq be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A totra,c+o0 0vqr0 yf( ntpal 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 ot/lg (vj2,./8digu tre9a tdc f gravity by the attraction of a fixed proton some distance above t veda2,.9c/(irlj u g/gt d8tit. How far above the electron is the proton?

  Two 0.20-g metal sphswp.gtpp :n7a8 dh3 :jeres are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic wptsj:ap3d.g:h87 n prepulsion 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 t,)n,e *gqz/1e v,o5uhyqknzyhe electric field a y 1e*u5goyvq,k,z,n /)nqzeht a distance of 1.0 m from the nucleus?

  What are the magnitude and direce e:/sg )+)mohipgar(uehd 3) tion of the electric field at a distance of 1.50 m from a 50.0-nC charge?/ daep()si :+oh) )ee3hggmu r

  A 5.0-C charge is 10 m from a small test charge. wunva r,y:pum- l;* *dpiq z1/ What is the magnitude of the electric field at the location oi:w a,uyn*u-prpz/ *v 1 ;ldqmf the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dire;iy zs gn;b7+jction of the electric fielnijb;yg+zs ;7d?

  A 5.0-C charge is 10 m from a small test charge. What is the magnimn)ojxql-(x0 p- *c zptude of the force experienced by a 1.0 nC charge p *x0p-l()zqjp m-ocxnlaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are sepsl87tvf;5 ecu arated by a distance of 4.0 m. What tc 5fve;ls 87uis the electric field 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 -4.0 mC cha 8 -dtl.+:hf(eha khf:lpf;jirge is placed at the 50 cm mark. Wh+:f-ah k.il(8 d;hfpljt: h feat is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at *b.j7 j6cbv v a*xabsw5 /ot,vthe 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 thx5*o* v/ 6vtvb. acjaw,bjs7be two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placeiqz/uafz18 d+e ez9iz5f.6ug d at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the pedga5 8feu6q +.f u91i/zzzzioint midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m..sp sg8m0e7nnglc7ko 0 xd90r The last corner is occupied by a -3.0 mC x7 0snmen .s0cr 08p9ggkdl7ocharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a sidn+ crt9esa 59qe. 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 cernt9 59as q+the electric field at the square's center?

  A force of 10 N acts orrn1eet0:rqjf3* iz 1n a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this r1 0 fj:*13erri zqentelectric field?

  A particle with a charge sk n3cws.c(9vof 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 placeic+*v 2b*nw-ck kx6 mdd in an electric field of 6000 N/C pointing downward. What charge must be placxkcd-*b cki nm+* w2v6ed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The k97 vpnebv6i,ball is placed inside a uniform electric field, and is suspende79vi,6 pvek nbd against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the 8 b yc8jj1 li4gfqs6il2/er j4magnitude of the electric field 5.0 cm frjg2ly8l4ii84c qrsje6 bf 1/jom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elef9qbps s ;8l7qcm9r6ictric field 6.0 fs6bi87c9;sm rqlp q9cm from the center of the sphere?