State the law of conservation of electric cu93yy ug 8+iaord.8 ryharge.

  Is it possible for two negative ch,f)yg mc , 6c:vo qp4sr8ut-gharges to attract each other?

  Is it possible for a positive and a neg5sepmqw680vjoy97yjcf n h* :ative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Duringmg9g 51*po h* 6bdch;qhx5p:)o9zxiu (los mx the process the glass rod acquires a positive charge andbm(h:oxp m6 )u;g*95x 9dozo15 g iqhsph*cxl the silk

  A proton carries a

  The model of the atom r0 znr0du+/;do hlh9olqp,q ,shows a

  A neutral atom always8whr;liu:7h kb fqk/5 has

  An atom has more electrons than protons.x4h oy*.2 gzga The atom is

  Materials in which the electrons are bound very tightly to the nuclei are r84r4-lj13 mpuu12ybh upzaz c eferred to as cj u1z2u z414a3p -bl8hrupmy

  Materials in which the electrons are bouwqcq:389e aihnd very loosely to the nuclei and can move about freely withiwi: 8qcaq 9e3hn the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal baju;up3 9ps)dr r. The end of t;r) sju9dupp3 he metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphexwumj,n n6 i94 s/axd); 4dimyyis5v7 r4bs;g re B is neutral. They are placedx5 d4 imvr7bmxdnin4w )a/g;y; y6ss4,sij u9 near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an elk.o(-sa y+zivtik8g:6: j xblectroscope positively?

  An originally neutral electroscope is briefly touched with a positit zkwf8ba04 nc)0cvw 0vely charged glass0vz) c4w800 bwktf nca rod. The electroscope

  An originally neutral electroscope isv :6kg;1k7m2je4sefssenaiz aos 96- grounded briefly while a positively charged glass rod is held near it.s9keez1sjaas g- :n; mofvk24e6 s67i After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscm y.cmg .(-5e*tmfpg lope, and the leaves separate. Then a negative object is brought near the electroscop.mtl* 5mg-cfe.mygp( e, but does not touch it. What happens to the leaves?

  A large negatively charged object5; . htf/ kg(bvl1dhdd is placed on an insulated table. A neutral metallic ball rolls straight toward the objkg.lhdb5/(dvt 1 fdh;ect, 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 constant hj:mz(thi ),kt-kuehs* 4 u1v$k$, which appears in Coulomb's law?

  Two charged objects arkt7dnh (w* i( *wl+s-l6uzrace separated by a distance d. The first charge is larger in magnitude than the second chawhcs w*l-+6n*t a7udl (r(zikrge.

  Sphere A carries a net charge and sphere d*zugdr1ja 8el905bgB is neutral. They are placed near each other on an insulated table. Which statement best describes the electej5a9ggzl*d8 1b u0r drostatic force between them?

  Two charged objects attract each other with a certain force.ta3 zcuum(1u /dx fa/- If the charges on both objects are doubczad(- m ftxu1/uua3/led with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractir;niv0h2wyk .ve forces of F on eac 2y;hiv. rnwk0h other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attbs( u7jb*ch l5ract each other with a force F. What happens to the force between the*(hjlbu b 5s7cm if one charge is doubled, 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 separated by c -:8eyp1vjjda distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electred:y-1jc pj8von is placed next to the first electron?

  An electron and a proton are sepal r paxbk72r/byq. u4 40wc.otrated by a distance of 1.0 m. What happens to the magnitude of the force on the x7.qrrt2y0 c.44bapo kl/wb u 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 m. xh /hrl*x68ilq p/t s, What happens to the size of the force on the proton if the electron is moved*h/ti rl/x8s q,lp6hx 0.50 m closer to the proton?

  A point charge of +Q is platr.8 fz5l5 lmoced 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 are placed at the ot mllr.oz85t f5her 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 placei7 d7v 9ovja)rd at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, a7)ia9 7jodvvrn 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 ncz// e9 hoie7 9ju1+ nawsb*dnot a vector?

  At twice the distance from e( jfhe54)bbqa point charge, the strength of the electric field

  Is it possible to have a zy3g5l6t+ di+v3uzojv ero electric field value between a negative and positive charge along+vzt o g5vjduyi6 l+33 the line joining the two charges?

  Is it possible to have a z :t9vb3c1was zrmk* a7j: s1enr5bw )hero electric field value between two positive charges along the line joi)*3vhnkrt1wbb: e w5 aazs :j19s 7rcmning the two charges?

  Electric field lines near psitive poinw3gn p/s3vgk41 hp7bd t charges

  The electric field showy 2:o62;r uvk8a kl7bcqp2c2eu t/t fsn

  Can electric field lines intersza;/j -qlll3jxvsr - ,ect in free space?

  A solid block of metal in electrostatic equilibrium is pla u2lz)bben abine6 vr79h* *b9ced in a uniform electric field. Give a statement concerning the elbl b *2 rva6beu)*9nhnbz97ei ectric field in the block's interior.

  If a solid metal sphere and a holx3buvhu/l)q +8xjtyo: dj (s8low metal sphere of equal diameters are each given the same charge, the electric field (E) midway between thohx:+xb )uy 3t jqs 8vdu/lj(8e center and the surface is

  A cubic block of aluminum rests on a woon7gjw: q)l qi6x(.zdrden table in a region where a uniform electric field is directed straight upward. What cann6d xzlw j i(rqgq7:.) be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric char43w1hw+vml nj ge

  A positive point charge is enclosed in a hollow fa(*nu ,m xud6metallic sphere that is grounded. As compared to the case withdumxu* f, n6a(out the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductorszzvx/ind0:8n5z 6ai1 rqzvp + in static equilibrium.

State Gauss's law.

  The charge carried by one eleh s5bw-0kmj +sfc9m9l 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. How many more eq 2bbgz: rj : bu,gs i.m9a.otx1y3:iprotons than electr:zg 32 bxj.tmg i:q9b,irsyuob:1e a.ons does this piece of plastic have?

  What is the charge o c 48zrl;l r2m:;wpngu6q1on in 1 kg of protons?

  An atomic nucleus has a charge jvz j8hlmp;, (of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5my9 2gie)k zg3 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between them?m)ig9kyg2 e z3

  A 1.0-C charge is 15 m from a second charge, and tcu8i dm //hm q,0ia (1wluhac2he force between them is 1.0 N. What is the magnitude of the se(uhua m8m ,0cc w/21dhiaiq l/cond charge?

  Two 1.0-C charges have a force between them o s *v zfbru);3f(nr incpni;9* d7jt+sf 1.0 N. How far apart are they?

  The force between a rtk: /dajbptg7,f(uhz: (4lh$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exper94 . gx1vdnanm9jlwz 9ience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force 9ndv4g 1.9aj9xm zw lnbetween them?

  Three identical point charkskxhu8rm8 m:4u d,7lges 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 direction8k7k :4sh mxudur8,ml 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 mC is-4kybjp:v .hga,gb:w placed at the origin,: 4ky, w.jag-bhgp bv: -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?

  Three point charges are located at the following positions: Q1 = 2.007i2zbd 2co..h.k sl wu mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC atdwlbz .2c.s2 kiouh 7. 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 cd571a.pcjtx t(xxt 4uppy 4 v*enter of a square, and a second point charge of -Q is placed at the upper-left cot u5x44.pxyjc(7av t1t*d xpp rner. 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); p35q z ve5nip1Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is3zei 5 pq1pv5n the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is av xb2t5dbc+mx/ r;/xvt (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What iscx trv2dvb b/m;x +5x/ the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilaterhu4s rwsv0(.o (-rus kal triangle which measures 30 cm h(k 4rw orsv.uss u0-(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 as5vadb)g 3fceqm :4b( re separated by 3.0 m. At what point, on a line between the two charges,cs5 )a vg34(edfbqb:m 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 at the origin and a +9.0-C charge is at x = 4.0 m. qzp;63avg + 6xfbf8p;ure 5e.n2 rfscWhere on the x-axis can a thirdfea +p.x8 2rqgp6bvc36sze n5 ;fru; f charge be placed so the net force on it is zero?

  Charge +2q is placed at the ozby :uj 7ng4.jrigin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on itgjzjyb4.7n: u is zero?

  A copper penny has a mas tl,-jobfrm1c a mf2 r0zg;*lx5-x8x ns 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 attractioi byq.uo+lsg 67tbx-o(a8;mx/) xfm p n of a fixed proton some distance above it. im ;q6to(-fly+subo)/mb8 .pxaxgx 7 How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a commovnn(kvc63l9 53q9ji aoyki;5w 8p mi on point by nonconducting threads which are 30 cm lo39kjci m35(vy 6q;9 8aionwpnvokl 5ing. Both 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 egkx .oldmm* 8j6k/k5zlectric fm*m j g/k86kdk5zox .lield at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of*qs wcy/x anu:8 wy0y2 the electric field at a distance of 1.50 m from a 5 yw q :x80*nyawysu2c/0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What i 1:cdqlypt1tcke *mmbty- r l7y8,/.hs the magnitude of the electric field at the location of the temy/tq l7:ph1c8,bkc y 1tly- der*tm.st charge?

  A 5.0-C charge is 10 m from as: ktg 5*any3o small test charge. What is the direction of the electric fielay g3n *t5:ksod?

  A 5.0-C charge is 10 m from a small test charge.)9:qmmhala p/ q5isu y3:6ifn What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tei3 :9amnq:l6fuy /m qhi5a s)pst charge?

  Two point charges each have a value of 3.0 C and are separated by a dis (6qzmkm;q wgmzme/f) j -(-lrtance of 4.0 m. kzw- fqm()/ 6(;el qmrmmj-g z What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 pk qt3d0w ,xwbvi:4.a cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is iqvtp 4.d x3ww 0a,:bkthe electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -zw zcmkov-s+6kh.3 gv )f*m:o4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electok-c+ szm:.3o)m6v zwfhk g* vric field zero?

  Two point charges of +3.0 mC and -7.0 mC are peyuaode(xfed,l 5-0lt b: 2.r laced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point .2abuy5-el, 0( d: detorxfle midway between them?

  Three 3.0 mC charges are at the threecz*x.)gxj.g h corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fie.hj*xg.cxg)z ld at the center of the square.

  Consider a square which a3 addg500s 75it.:iw+iziyn vf;spwis 1.0 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 field at the i7;y 0wi w55pa s.ntvziidf3ga+:ds 0square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a ux tz1 h9kan70xniform electric field. What is the ahxz xn09k7t1magnitude of this electric field?

  A particle with a charge of 4.0 mC has p ad;2a p8-y2wby9voza 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(x)achplf+z4 +.on ) ng*nwtk is placed in an electric field of 6000 N/C pointing +nxk* l hf + w(ptnzc).)gao4ndownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g c ,bycz,csv .ti/+e we97wbluw6an6; yarries a charge of -2.00 nC. The ball is placed inside a uniform electric field, an 6 6 av b9b/wietun;ws.,leyw,+yc7czd is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm .7s9 e 0fg.l2eaxqfoscarries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphefegf7q09e.oxla 2s .sre's surface?

  A metal sphere of radius 2.0 cm carries a charge ofrg /m 616rqzpf 3.0 mC. What is the electricpqr66mr f1zg/ field 6.0 cm from the center of the sphere?