State the law of conservation of eleck 4 wfjg.45etejn 0v5b2+r jcltric charge.

  Is it possible for two n hfl;t 0ez/-yoegative charges to attract each other?

  Is it possible for a positive and a negative charge to attract 5 6cr3w mrn567ixy;kshsrht, each other?

  A glass rod is rubbed with a piece of silk. During the9olmo mdb(k 8/ha/gz* process the glass rod acquires a positive charge and (/9 ml*mhga8/oz okdb the silk

  A proton carries a

  The model of the atom show+h -;lpj(nentsm/h d3 s a

  A neutral atom alwaysuu2*m g/ bhqkxy443 hj has

  An atom has more electrons than protons. The atom )7 h/.a rfc*c fa6vpjdg 5jr+dis

  Materials in which the electrons kqoyp*w-cy 5hbj(h2 4are bound very tightly to the nuclei are referredo2-5yhckwpqh(by j *4 to as

  Materials in which thi o6sq6j3 5w2 /mlydrzaccw *p* (pfdvk-39wue electrons are bound very loosely to the nuclei and can move about freely within the material z3*l/ y a6mo 3 wwwfsdkcq-2j(ruvd 6ic5p*p9are referred to as

  A negatively charged rod is brought near one end of an unchasizpw)ykt(la ) qs*30gm07 esvym68 drged metal bar. The end of the metal bar farthest from the charged rod will be chargedisv(l86e dq 7s ))ms*0zg w mt03pyaky

  Sphere A carries a net positive charge, and sphere B is neutral. They arez- 9uzxte3zr.t() uo r c7qu4g placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement tou7) (q-z9.tgur4rcxzuez3 is correct?

  How can a negatively f mweo7foal+9prn h 0z*d:p37charged rod charge an electroscope positively?

  An originally neutral electros7s.+*impboh4 xe(aj e;,ku5 m upiae :cope is briefly touched with a positively charged glass rod. Tuaoub5ek:*i4x; mip (s+j ,7p hme.ea he electroscope

  An originally neutral electroscope is grounded briefly while a po1m0-xgr3ul -t 3f podr*, .v 2et.kzx myrc7lnsitively charged glass rod is held near it. After the glass rod is removed, the zdm.ycon3rtp*x -- lxu2gk0l f,er.v173tmrelectroscope

  A positive object touchesst))v1 0o v4ft dgp;er a neutral electroscope, and the leaves separate. Then a vf4)vg e01r;)s ttpodnegative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated td5lf, zorim1 :able. A neutral metal, f1mrio5z:l dlic 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 the Coulomb constld9ryyi 9bakb u.k00a50mrr/ ant $k$, which appears in Coulomb's law?

  Two charged objects yzb+88uqo lr (are separated by a distance d. The first charge is larger in magnitude than the second chay8b+8luz o(q rrge.

  Sphere A carries a net charge and sphere B is ncwwz/qwe*+ 8x eutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force bet8qwwx+*c zew/ween them?

  Two charged objects attract each other with a certain force. If68uyq(q r fqr5 the charges on both objects are doublu qqr658(f yqred with no change in separation, the force between them

  Two charges are sepalees m,avrd 1(9zl;f /rated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated bv;1 sldr zml9(afe/e,y a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What(()lhbve a;.z- v fwum happens to the force between them if one charge is doubled, the other charge is tripled, and the separation w aub e(h.f;l)z-(mvvdistance 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 distlyo:vh, rehaid, 4f0 k0/f5 vxance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electron?,iaxvhhdvyo5 ,/ek4 lfr 0f0:

  An electron and a proton are separatb 5gtt0l;mrshs8 be01ed by a distance of 1.0 m. What happens to the magnitude of t t1r hb0;g8etb 5sls0mhe 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 1.0 z, v)1y:sajshm. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to ,shajys)1 zv: the proton?

  A point charge of +Q is placed at the center of a s6ofu m 2ge-fk*x(qfr6quare. 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 plmk ru 6g *6(xf2f-foeqaced 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 amgdr(oy 4m ,-bv46ojqu,s,6f o1o kud n equilateral triangle. When a second charge of +Q is plao4 dm d yukq,j-s rovf,o g(466m1obu,ced 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 a 9xxq5fuwvby.e1e *o; vector?

  At twice the distance from a point charge, the strength of the s,0o9s lk8:q b3a7b/g uccpqyelectric field

  Is it possible to have a zer e4u-bj-0fj1ab vc)r po electric field value between a negative and positive charge along the line joining the bc1-4u bjr je)- vaf0ptwo charges?

  Is it possible to have a zero electric field value betweenc*ct6t 9o n6f,sfid5j two positive charges along the line jn6 o 5 tf9tfi,*c6sjdcoining the two charges?

  Electric field linesl e+zs 4uj3/n)k9bq mg near psitive point charges

  The electric field sh x s0d2:jlgy l5/:v,;xk9izjvs z*omoown

  Can electric field liuh5 ;yc8wr cd(zi 6-sfr c)2xhnes intersect in free space?

  A solid block of metal in electrostatic equilibrium i + 1ia0h,mawbzs placed in a uniform electric field. Give a statement concerning the electric field in the bloci ,1bm0haz+wak's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eh1 5d.pj1tp5m w.ug jxach given the sa5xp1.1jhg pjd5wu tm.me charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden s(di2f. zti; ztable in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the bloczz2 iids;t (f.k's top surface?

  If a conductor is in electrostatic equilibrium near an electric/zw50orv qv p6 4c(ou,cfq p1c charge

  A positive point charge is enclosed in a hollow metalli )4o5ladusz )xc sphere that is grounded. As compared to the case without the hollow sphere, the electri4 odz)s)lx5 uac field at a point directly above the hollow sphere has

State three properties of conductornzvo7rb8;2nzoc r y5(pi/y r1s in static equilibrium.

State Gauss's law.

  The charge carried by one electron irmlw6hb.lc c iet9-:*s $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a d4p ahx7q)q* lsthaw8-k 2o8knet charge of +2.00 mC. How many more protons than electrons does thx7ohk*p)-d2lq8 a 8 tskahw q4is piece of plastic have?

  What is the charge on 1 kg of pron:2x/jbs r 8 m0yvv,fttons?

  An atomic nucleus has a chch,2sku */r aharge 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 va1 k* (gw0,fgr1fdqvq dlues of 2.0 and -4.0 mC, rq1 fw1*gqrdg,v 0 kf(despectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a seco+ sr0 s4p (x6fo.5pge(mi qjaoqp /d+qnd charge, and the force between them is 1.0 N. What pf rg/do++i ( ae4qo p5 j(q.ps60qsmxis the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. ,fy*w e*b q oqn;/7w;ihfkio ) How far apart are they?

  The force between a 8;u n 8es wu7jbcyn78f$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expeytyhkf24 x ifcg: .pgbszx1 +s /v+2e+rience a 1.0-N force. If they are moved to a new separation of 8.0 cm, wht++zxybfsif:pcy g/ kh+v2eg x2.1s4at is the electric force between them?

  Three identical point charges0dqjlkkd8 d 2.xbc. q0 of 2.0 mC are placed 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 elebkdk qjqx0l 8dd.c20.ctrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-a.(smvfwq ny( tjkan3 n +iv( 7a21:yzgxis. 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 electrostatic force which acts on the charge at the origin?y7w+3t vfz:n(a k(yvj2mnn(a s1qg .i

  Three point charges are located at the following posi m/0zar1:v lcmtions: 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. What is the magnitude of the force on the 3.00-mC charge?zr1mm /c:0alv

  A point charge of +Q is placed at the center of a square, and a secf z wf8 lo,i36hf ohs(p5gs:z4xf -do(i6ck1bond point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic forcs,68posd :f1l(-g i4ixk3fc6zbzwh fo5foh(e 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); Q*xkg1 vgc.6t* aa:bvxd a:k(m3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5m*:aac*kb(xak gx6g v.v1d :t.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2), x td o(*jetw) pym0fm*owv- = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dfwoyj(oe t*,)m0 * tv-xpmw )direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC aral*6 :kedjt +lw13 am1 ryrfo0e placed at the vertices of an equilateral triangle which measures 30 cmwl*3 +0 j11 r l:oer6ftmdayka 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 separaqx+uisky)rtz4on3s* ;t * ;u dted 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 u ;d+t)ro*n z;xqskt s*4y3uion it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C cm 6vom8tev 0wg2,hf4m harge is at x = 4.0 m. Where on the x-axis can a third charwv 86oe4g tm 0hmm,fv2ge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -s( ag/ cdf-4dqq is placed at x = 2a. Where can a third positive charge +q be placed s-f s (4ad/gcqdo that the force on it is zero?

  A copper penny has a mass of 3.0 g76 5v.kxygj;ol1i aae r9l ut5. 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;8:uwrwp tb/m gravity by the attraction of a fixed proton some distance above it. How far above the eler/:b pmwt;wu8ctron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductingwn tc7qyo(h i6bk.iw828 dk0 z threads which are 30 cm long. Both are given identical charges, and the electrostatictcn7i y8dkh. w80qbk(w i6z2o 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 electric5on 45 os:p8ka4 ppk mx2rppp3 field at a distance of 1.0 m from the nucle34p4moopskprpn 25p k x8p5a:us?

  What are the magnitude and atr: :bg2;s viowd-up9s7c wlm4 ,bt/ direction of the electric field at a distance of 1.50 m from-9c7swbdr si,:vlg pt 2w :buat;4/mo a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test char0h+9ay z /ivq cg/wjm,ge. What is the magnitude of the electric field at the location of the test chgmziwjcq+vy h// a9, 0arge?

  A 5.0-C charge is 10 m from a small test charge. What is the directi( ya8 jnm;c6m3 yk*axxon of the electric jn(cm;a max yk*63yx8field?

  A 5.0-C charge is 10 m from a small test chargeu,20va/llwmv . What is the magnitude of the force experienced by a 1.0 nC charg l,0/vlma wv2ue placed at the location of the test charge?

  Two point charges each have a value of 3.0 C ankut b3 gjq wwuyqw qo 6evz7ob0*59():d are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges? eg7j utwywq5obu9)0 6wvk oq*(3q:zb

  A 5.0-mC charge is placed at the 0 cm bk;91o kd.tahv z 5m )leylv,;+zmjb7mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm markz ;eh,z mjatll d7mk51+v.;kv)bob9y?

  A 5.0-mC charge is place9 j.vq vvb9c)x*z /tfujf) mk-d 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 joining the two charges is the electbtf9 mcvuj*) z .v-f)9jvkx/qric field zero?

  Two point charges of +3.0 mjag3 8f;hpk *hc veh4vdh*68d C and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude ofh6h 3d k* chpah8gej;f84 *dvv the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square omie( fe g679q def3-xaf side 0.50 m. The last cgx 7qe-fde iea3 (9m6forner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0e bhi-h*)n7tm 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 field thih) -ebn*m7 at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform elbs c3pxvdchfd gr38/ x- 2q+4a*rol-oectric field. What is the magnitude of this electric fielddhd-gf4/op l3+83scb-cxav * 2rrqox?

  A particle with a chd*xk6a. sdtth v*n. x6arge 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 an electric field of 6bu ;tdl r34o p y9ttcow;2(+y9hv qlbtd;0m1d000 N/C pointing downward. What charge must be placed on th oqruovy12tlbpt+m b (d; 909h y cl3td4;;wdte ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2n;hk*jp.)prtv xbl 59.00 nC. The ball is placed inside a uniform el);v9 rp b5l*x .tjnkhpectric field, and is suspended 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. uov8xa5, r2u t What is the magnitude of the electric field 5.0 cm from the sphere's surfau28vx, a5 ruotce?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is t q 9tvdb0m92z5(ho8c gaj. exjhe electriez xjcmog.td299 (508ajbqv h c field 6.0 cm from the center of the sphere?