State the law of conservation of electric c e01vsz+d hkg*harge.

  Is it possible for two negative charges to e pz0lx*8 rj1gattract each other?

  Is it possible for a positive m22woq kg6-lhtgh/ w: and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the proc2y4pk e c;/ehh8.jrov lwz7:xess the glass rod acquires a positivepxo2v7e ycr/:e ;h.z48wjhkl charge and the silk

  A proton carries a

  The model of the atom sh cu+6-y8 s*na7u aj,vp ibjo4vows a

  A neutral atom always hash- t3qq90+ czrb 5*uke2 +bk*zx nfgdg

  An atom has more electrkw3k8f s:jo dfv(,cdjb7;f b.r -yr2tons than protons. The atom is

  Materials in which the electrpup(e s:7 +-uj8udtvfons are bound very tightly to the nuclei are referreue- :vs( +t7dfup8 jpud to as

  Materials in which the electrons are bound very ydmygj )x8bw/q58; k-cewuhcm ,hy9*loosely to the nuclei and can move- 8mmg/ j5*dhyyckqe,8w)uxbyh9 w;c about freely within the material are referred to as

  A negatively charged rod is brought near one end of95 r7n a)k9m,1kxfs m wvgjwndr6ee5+ an uncharged metal bar. The end of the metal bar farthest fromxf69n 9)ewkke5+wamg1 n m jd,5 vrsr7 the charged rod will be charged

  Sphere A carries a net positive char+v*0 yl,eoi6uf 5h kizr,l/li ge, and sphere B is neutral. They are placed near ,il0ol ifekz 5+yiulrh ,6*/ veach 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 chargx rx xjg5 26oxtf59lq6n:o bh8e an electroscope positively?

  An originally neutral electroscope is briefly touched wcnqv ;k:hf0:rith a positively charged glass rn;h0: fv:qkcrod. The electroscope

  An originally neutral electroscope is groundg;fb1p vqa)ou1pqzs3k ***dred briefly while a positively charged glass rod is held near it. After the glass rod is removed, the ele ; fs*1z b1 ouqg*rpdvpq)ak3*ctroscope

  A positive object touqq n l10c2j:.hxrj*oo7ljw (d ches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does nj:j1won* qrojdl.2l (0h cqx 7ot touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutraquz/,e8n 9eggw k9q7o l 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, and stops. The first ball rolls forward, but does not touch the negative object. Ak9o 7/wgeqe8q n9 ug,zt 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 fj8jo 7z2 l j;jj9ajs4$k$, which appears in Coulomb's law?

  Two charged objects are separated by a /qrqb ;hpps.az1ar*/a /8t pldistance d. The first charge is larger in magnitude than the second cha l/p/pa *1barrz th;/qaqs.8prge.

  Sphere A carries a net ch7gd.i cfmo:,q arge and sphere B is neutral. They are placed near each other on an insulated table. Which staf id.:mcoqg,7 tement best describes the electrostatic force between them?

  Two charged objects attract each * szvrd,r (a0rother with a certain force. If the charges on both objects are doubled with no change in sepavr,rrd* (a0z sration, the force between them

  Two charges are separated by a distance d and exert mutuahf4 ktkkv1plbv:63 ;x+ ts 54cvtysi:l attractive forces of F on each other. If the char 5v:ki vhty:b kxs+l14 64ktt ;3spvfcges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force 4d,0p:z;ud d t vi w2fnu(-nste;gky*F. What happens to the force between 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 fdtd4;* ku:vng yzpd0tu(n;s 2,wei -force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What svc p5 n4bh;q:happens to the magnitude of the force on the proton if a second electron is placed next to tv 5nshcp:b4;q he first electron?

  An electron and a proton are separated by a distance of 1.0 m. g(sd*ap,;pq;ag nttx 1n x* b2What happens to the magnitude of the fq n1 tggppt;n2,*(;b*xd aasx orce 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 m. What ha 6wo jo9ro4lrd3n;in by1 aay5 wk:e(8ppens to the s o86 ey1:nwr9a i4d5no 3lwby;k(r jaoize 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 cendwhfgn+j0w*p : g wgq-qxt7+7a 0jdj ,ter 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. g+jq ad w+ t-gwj7qjd0xp* :n,g70w hfWhat 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 aeqh:iq;hfm1 (* i*o :zj,c g 54if)ydqwr+pa centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts og a1:mqo, pfze+dhi(;qqcy hi*iwr)45*:fa j n 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 vecto k-p m9,+gti ++fj yqma1g8rshr?

  At twice the distance yx2- (/ rfpetpvgk;c j)7. tw/tu(txifrom a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between bod0/z b): 6 2kzqjvme)+ft fxyn9p6aa negative and positive charge along the line joining the two charges?/j+0))bzk:d66e anmty2qbxf oz 9pfv

  Is it possible to have a zero electric field value betweenhf sgw b,ulmv: /zx-zz) v(9em3.on .sulu(y0 two positive charges along the line joining tlzwsz9mb-)(o, .f0u3 z.xhylv( v /usn:gu mehe two charges?

  Electric field lines near psitive dfn/jtmxr8. -jl(9 bz point charges

  The electric field shown psd54ss7m-hjw93l me

  Can electric field lines intersect in free sp v+;8 3.dtda do.3,xeqncfafoace?

  A solid block of metal in electrostatic t*dr r m+) 0lcivj7nt4rxb3h6equilibrium is placed in a uniform electric field. Give al4vcjtn6 bdr)3ti07r* m+ rhx statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each grki4, -*n/wupaw 8 mfj r:h)/3ngqfge ivern//3jri,a*hew8g) kfugp- fqmnw 4 :n the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminufl p0gu/gf. 8. znu(vhmy:87aha)vn gm rests on a wooden table in a region where a uniform electric field is d8v:g./)0(a8 h 7aggly.phuumffnvz n irected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostati r:k4qj w;fz ,+5fzuhxc equilibrium near an electric charge

  A positive point charge is enclosed in azxvs:bkx/j 1 2v u+up2pzs,v/ hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric fiel 2:xj up+v,/vpvxz/b z 2ukss1d at a point directly above the hollow sphere has

State three properties of conductors in static equi /uxhpbtoz5 h79o59;f etahs)librium.

State Gauss's law.

  The charge carried by one electron is 9 u,nyny+ow/j $e = -1.6 \times 10^{-19} \; C$. 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 pru oyws/23 o6ocqp.q7sotons than electrons does thiq7c 32w6s.o oq uoyps/s piece of plastic have?

  What is the charge on 1 kg q olj:jcw 5()ljc5zw7of protons?

  An atomic nucleus has a charge of r gi 2.kjf55gp$+40e$. 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 values of 2.0 and -4.0 mw mxal-m( w5jem.yh 0s : r4abu4v4;gpC, respectively. What is the magnitude of the electric force between them?j0 ;4r4p(hes ay5: u-a 4 mwvbwlmm.gx

  A 1.0-C charge is 15 m from a second charge, azwqa 20 itj +vwcb4-4snd the force between them is 1.0 N. What is the magnitude of the second chargeq0v 4 zi2+st-wbj 4awc?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are theytegi9 i4zfj93 ?

  The force between a .:tw fzi)+hu)rp5eajm e 6r z1$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initi;trkau6l: d2h kn6m* /nvu,(o4s(ko gq ql zm-ally 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 electric force beaq(4sd rkhkn ,6/2*n: ug6tov q(-zm;olk lu mtween them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The filn+4q 2o.eqjyiwtpt /,1 8larrst charge is at the origin, the second to the right at x = 50 cm, and the third is .r4l+1 8aj, pq/qnetlyio2tw 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 placed on the x-axis. A/ujyb j1dw p hoz0 f:xpr21o68 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 thujwpojhd0 8 1/:p2b1orxyz6f e electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = utwytjdl/o- -2+ w6a b2.00 mC at x = 1.00 td-talyw+ b6-u2jw o/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?

  A point charge of +Q is +qfv ww87b/xh )h)dcmplaced at the center 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. Ww8c)/v w)hhd7fqb x m+hat 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 (0q l8mgb t a1/m7:wz2ub, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on th7qtubwg 1 z8a/2 :mlbme 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = 6yu0ax8a-djg+bzw7oz y ;rq7e0w xg6 -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 th 6z;oj zu7b+a7 8x waeyd 06rwxy0gqg-e 5.0 nC charge?

  Three identical charges of 3.0 mCck336 lkxsox vkbt +25.uai0l are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charg l3ubv+6 c25xkk.ktx s0io3al es?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At why, 4kg/x4 ngneoe( 9urat point, on a line between the two charges, would it be possible to place (/y9,nre44xkggn u eoa 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 xu (fqw 962on-+art del = 4.0 m. Where on the x-axis can a third charge be9luwotfan dr2 (q-+e6 placed so the net force on it is zero?

  Charge +2q is placed ato4hkcg )kbp27 the origin and charge -q is placed at x = 2a. Where can a third posi bkck7op 4gh)2tive charge +q be placed so that the force on it is zero?

  A copper penny has a mass ;;via n1lo)(otjs e)nof 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 bpmi md4l u5gxrz :r8mr6yu7du:9 3ur9 y the attraction of a fixed proton some distance above it. How 95d3im ud87z lru ug:u: myprr64rx9m far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common eje c08(*o fyzo9j6vnpoint by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repu9zno 0ejf 8jcv*6(o eylsion 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-j f058e7nlgvyu 3wyt is the magnitude of the electric field at a distance ofgnuy elyt7v j0-5 83wf 1.0 m from the nucleus?

  What are the magnitude and direction of tq9 y l02ngj:tbhe electric field at a distance of 1.50 m from a 50. tn9j20bgq: ly0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magn to;t bwmqn63)4;- h:qbli kbl9w-vbditude of the electric field at the location of the t i k3b-;m4qhb-:b v;wq)ldbotn lwt69est charge?

  A 5.0-C charge is 10 m from a small test charge. What is thg +blz2 thep:. pgu)*ie direction of the electric fielg 2 ghb zu)*i.eptpl+:d?

  A 5.0-C charge is 10 m from a 264qqlf5 djo qjn6w pk0q5*od small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the wo *6q0l nqj qk 54pfd2q6djo5test charge?

  Two point charges each have a value of 3.0 C and are separa bp0 whv9:g ve5-r1ethf2; vyfted by a distance of 4.0 m. What is the vv;t w52f f0 h 1yvghbere9p-:electric field at a point midway between the two charges?

  A 5.0-mC charge is placedg8r0 d1zwpl9fo7* r;vhhpz8b at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cpz8rf*h0;8l ghrbd wv79p oz1m mark. What is the 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 -4.0 mC chargzdvo5flh4ah-a n7 ;8xe is placed at the 50 cm mark. At what point on a line joining the dloh f48hzxav5 7;an -two charges is the electric field zero?

  Two point charges of +3.0 mC anms yr+.;fi5vr d -7.0 mC are placed at x = 0 and x = 0.20 m. What is thyri.+m f5rsv;e magnitude 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. Theey;1 ; dkeyx) 50nq, nyzoxo;p last corner is occupied by a -3.0 mC charge. Findy y1ypeeznx dk)0,x ;;5;qo on the electric field at the center of the square.

  Consider a square which is 1.0 m on j(u.+v.rd iqva 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 fieldv.di.jv+u (rq at the square's center?

  A force of 10 N acts on a charg-nut bx 0k4k+7 ra2.e db.whmqe of 5.0 mC when it is placed in a uniform electric field. qm 7bxke-w ra4h0t+k.d2.unb What is the magnitude of this electric field?

  A particle with a char- exg-aunz3r a 0oo0h3ge 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 elecei w), i wrshcp3(8xeu**ihv4tric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to bpir8, wi*ce*vs3hw (eh4 x)iue suspended?

  A foam ball of mass 0.150 g ni5w9 i5rgl;nzrp 4;qcarries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force ofqn95g5i r rl;ni4;zwp gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries awnbxc : mq750r charge of +2.0 mC. What is the magnitude of the electric field 5.r :bqm xc7w5n00 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carriep2 sjlq zkiq.1ah25y wc.2eswu7f)8jb ;w yb ,s a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphq2kjb1 ip, ).u87sl5fz22ajwhwyb ecqysw;.ere?