State the law of conservation ofj-wxc3i + 6nlj electric charge.

  Is it possible for two negative cha p6v8 6lhu-wkgrges to attract each other?

  Is it possible for a positive 5- 8;cmeyt9h f6tmyqb and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. ;wzzq (ivp bjd*z2vq 7 m-*e*jDuring the process the glass rod acquires a positive charge and the silkv2ew7*v -db q;*mzj* (iqjzpz

  A proton carries a

  The model of the atom s.fx4 ws afj- ;q:vvrv(hows a

  A neutral atom alwaysidigu, t6; n7h has

  An atom has more electrons than proto0sbaikt0pt 0e.x m07 vns. The atom is

  Materials in which the electrons are bound vew7/cpjif :up2ry tightly to the nuclei are referred to asp/7wf:ji p uc2

  Materials in which the electrons lx-0 6/qwsy uiare bound very loosely to the nuclei and can move abouxu/y0 i-w6ls qt freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal u:v25r lskr/+oo v zuc,*qt/ hbar. The end of the metal bar fauv/os2c o+/l5:r*,q ukrhz tvrthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B iix 6j5 qptt48thf;-aws neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded.t6w58t qf-x;it hjpa 4 Which statement is correct?

  How can a negatively charged rod charge eftxz .:fsjpnd) ys un6j4467an electroscope positively?

  An originally neutral electroscope is briefly touched with a positivelyzzb7f oet(xi+fk+5 r - charged glass rod. The electr+iktfxz5-fze(o r +b7oscope

  An originally neutral electroscope is grounded briefly while a postkywl y ;.r/,0e,amngitively charged glass rod is held near it. After the glass rod is rea ; n gklytmy.e/0,w,rmoved, the electroscope

  A positive object touches a neuwl)skmve6m+ qc3r5e uee76 yxodw+4 9tral electroscope, and the leaves separate. Then a negative object )e6 9+we65xm s eloe+c7d 3ry 4vmqwukis brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. )mh1:wdz4,od zzk0g jj8aw0 e A neutral metallic 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, andjmz0hwkw jo z4a,:ddz0e)g81 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 thelk ;i h;mv t80 bwboaa 4/*w9d58ahcba 3vwpo. Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ism (5mj2vgn ev :s2n:io larger ini5 :eo n2:(2smvvmj gn magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutr88h7h9svtsd.30 xvrbvpztil7c m. n3al. They are placed near each other on an insulated table. Which statement best describes the electr n 9.0cvb m7l73 srv8z. htth8vpxds3iostatic force between them?

  Two charged objects attract each other withzu qc z. .7-to/wv0ptlkeq -,b a certain force. If the charges on both objects are d/ttz- .ocp .wb ,q qkez-07lvuoubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractivge2* rn0-zm3vf vf 9tle forces of F on each other. If the charges are separated by a dis2v9- t3vzefn m 0rf*lgtance of d/3, what are the new mutual forces?

  Two charged objects attract each o83szubmmc h00ther with a force F. What happens to the force betc 80m3hmbu z0sween them 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 a distance of 1.0 5 nh48j 0rje/npzc+d0re o0kj m. What happens to the magnitude of the force on the proton if a second electron is placed next to the f +jr04 eop nnje0jr5 hd80zk/cirst electron?

  An electron and a proton are separated by (-eh r1/db 54ccnw;n umduf 4qa distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to thb n1r5duh/4w-4 nuq( ; mefdcce proton?

  An electron and a proton are separated by a distance of 1.0 m. What happfh0 z2/plt19n) zvw s*2 msppaens to the size of the force on the proton if the e1slfp*2 )w vt/2phzm as0pz9nlectron is moved 0.50 m closer to the proton?

  A point charge of +Q isbz ac/ 1si;x kb co5gc4dw*-g, placed 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 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 squgw *k4cgz5odb;bx,c i1/-casare?

  A point charge of +Q is placed at the centroid of an e, it4*slg togvids 7)0quilateral triangle. When 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 chd4,si)g*olst 7 gt vi0arge of +Q placed at one of the other vertices?

  Which of the following9 -pqjj mcn.k0z +q(hdi:ek0c is not a vector?

  At twice the distance from a point chaoeb6 mr(kwxm :(v: uf/rge, the strength of the electric field

  Is it possible to have a zero electric finrck- : 0qf5mmeld value between a negative and positive charge along the line joining thmc-: rkqfn5 0me two charges?

  Is it possible to have a zero electric field value between two positive chawrn4).q g 9qtyrges along the line joining the t9t.wg)4qq ry nwo charges?

  Electric field lines near psitive poi. p zs:amcm q0bl/*a5bnt charges

  The electric field sh+6e t az0qbty,own

  Can electric field lines inters,ln3wv/yr6opdn0w89zk -y z- j yi:zwect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elec76b+jhx kw* epgbwwgj,, p 9;ztric field. Give a statemeepj+x,zgj*b kg7h 96;pw,b w wnt concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameter -o+i3v8x2w cpg g8g e*z +rtj5av*r9mw-yyvgs are each given the same charge, the electric field (E) midway between the center and t2 v c og*-i gt v3wm-r+yz+rewg9a*gy8p vx8j5he surface is

  A cubic block of aluminum rests on a mqbi dzv, 7l5a3t,7g3pks 9odwooden table in a region where a uniform electric field is directed straigh33tao5kd d gp,9v7qb is,lm7zt upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equili54bmsd-t7eujwn , w6jl /rn e-brium near an electric charge

  A positive point charge is enclosed in al/3qaon))vi vk1b *33sag hql hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow spherv) *)3kg3 anbs3lqv1liaqo/h e has

State three properties of conductorscxlo u-91zg86r :ckap in static equilibrium.

State Gauss's law.

  The charge carried by ona0 +zh2 dirfz02ny, xd8x e:aue electron 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. ldy:fl0mndg : -mu n7e;nc)7y How many more protons than electrons does this piece of plal7 n dc:ymufen:d)07ly n -;mgstic have?

  What is the charge on 1 kg of prot1o vai 6ni9o/oons?

  An atomic nucleus has a 5a8*wf sg ,alvcharge 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, haver/clx:3 6kfs e 0wtg9t charge values of 2.0 and -4.0 mC, respectively. What is th: ttwx ergc3l6/ s0k9fe magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1ox4 s g2e,m4 wnim00/np/c.t efz 8jrw.0 N. What is the magnitude of the 0 s.nm ejf/cxg4m2or0wz/ wp8t i,n4esecond charge?

  Two 1.0-C charges have ay86fzki 2dt/e force between them of 1.0 N. How far apart are they?

  The force between a h(:tbi whu1 (aj*k6wg dkv5p7 ;ad(fr$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, inn d1 -l 9il-oqkt(2fmhitially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the(-29ilo-hnq km1dft l electric force between them?

  Three identical pointtlml dejnuo dj. k2d) p4m16;. charges 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 aud d6dmepjo1j. 4l;t m2n.kl) t 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 c s1ycl wcy ,8l.lqpk*et 1v/(the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to tc1yc.lvq8c1ll , ket/* pyw(she 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 posz-n yp7ol8ae 91:dejh itions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 1:-he apzjdley87 on9m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the c3,hq .nmm, go v8jc,zkenter of a square, and a second 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 acjhnv83, ,kc qm.,gmzo ts 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 iscer+n0ywlauqsd 893) at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge?r +0)ad9 3wq scyle8nu

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 4z2es9gggbi-qf ,9yxx;q1 binC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the zbqi- g ixse2,9g 419yxbqgf; direction of the net force on the 5.0 nC charge?

  Three identical charges of fk5 jm.to1mu0inxo, )6 xxd3 m3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the e1mnd )x tm3m uo56xj0.oxi,kflectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separw9+j8* w sjtiyated by 3.0 m. At what point, on a line between the two charges, would it be possible to plaj*y wjis8 9tw+ce a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is a dz :,aqb7v;i5djkaf+ -7aacqt the origin and a +9.0-C charge is at x = 4.0 m. Where on the ,;a5:a d kc-f7z qa+jibvqad7x-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 p 5(kqsw17bf ,kui 10jy2gam ivlaced at x = 2a. Where can a third positive charge +q be placed so bkq1k7u wsf 52igvji0 ,ym1 a(that the force on it is zero?

  A copper penny has a mass of 3.0 g. A g0e3b,or y9vvr mzi-2total 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 attx 05 6(jcke qa7/atzbk) t/toyraction of a fixed proton some distance above it. How far above6kt /x c5eatbk/(zqty7o)0 ja the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncond.hebd0dnif v6,;x z0 9z2lg e2iuj9dgucting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until ;gi.xu idveg 6b9 zh end j29l0z02,dfthe 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 magni 26vmt hze 0b,ok,/pgttude of the electric field at a distance of 1.0 m frokpgtv,z 0/ebmt6 ,2o hm the nucleus?

  What are the magnitude and direction of the electric fi m nz*05 :i-3agjgy7k+xtjvjaeld at a distance of 1.50 m from a 50.0-nC 5zixa3 j 0n:gjy* mtk-g7 +ajvcharge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of pa/-a1fbu hn:the electric field at the location of the test chargu1haf b:/n- pae?

  A 5.0-C charge is 10 m 6k+h0lkm u*offrom a small test charge. What is the direction of the electric klo m+6hkf*0ufield?

  A 5.0-C charge is 10 m from ;s ae2k8xpz2jqx22 oqa small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the 2xk2;2qxqj pseo az28test charge?

  Two point charges each have a value of 3.0 C and are separated by a diwly::c5pz or3 stance of 4.0 m. What is the electric field at a point midway between the two c :zrpywo53: lcharges?

  A 5.0-mC charge is plac mw8iko2,ct(9xwu wj .bf4*dped at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electrc,ww94o uix *pjt28wk m(bf.d ic field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick 6.uv8hsiz bv2 and a -4.0 mC charge is placed a86s2bvv.uz hit the 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 -7.0 mC are placed atm s90y1k a om.8tr zcr2,7ar.awfyj*r x = 0 and x = 0.20 m. What is the m1y*7.cs8t ay,amr0o9 .wra rjkmzr2fagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The );e t cj n4yfjm3z3*trlast corner is occupied by a -3.0 mC charge. Find the electric field at the center of th3m)3r;y4tjn*z te jfc e square.

  Consider a square which is 1.0 m on a side. Charges are placed at th9iu767 00efczl xfd/vvrhh.6f e raj *e 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). Whl7* u6f xef 0haz fdir.7rv9j06/cv heat 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 placedd+6((xxw 4t15 zsritb ube5x l in a uniform electric field.x41 t5bxl6(+ z5(eriut dswxb What is the magnitude of this electric field?

  A particle with a charge of 4.0 mv8*ykpz.w/d l4r sqb 2C 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 electric5a3): g5 7yw3doczzbfj9fyzo field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspendedooz:ywz3 5df3z9b)g7 ca5 fjy?

  A foam ball of mass 0.150 g carries a charge of -2.00kj) l,v j6blq: nC. The ball is placed inside a uniform electric field, and is suspended against the force of g:jk, lv ljqb6)ravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 c.p;ssu wx a qf:wch)*:m carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from th):w hqfpwus a:.scx*; e sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the e ncna9k wya* (n15gfa:lectricg 9 f:k(5*wnn1ancaya field 6.0 cm from the center of the sphere?