State the law of conservation of electric.-fgv +pvx3d y charge.

  Is it possible for two negative cha,. a hidb/uogu7(4ef qrges to attract each other?

  Is it possible for a positive and a negative charge sb5f /rr vi3.bto attract each other?

  A glass rod is rubbed withwtwo:pd.qk6k a(/pp.oo p uz*-8 pb2s a piece of silk. During the process the glass rod acquires a positive charge k. 6o:a*ow(do p8sqtp2- ppwpb.uk /zand the silk

  A proton carries a

  The model of the ato e( 9svvcpzy 2,f4vab-m shows a

  A neutral atom always haslw5ax382fif l k. rf3h

  An atom has more electrons than pro r y8h3qtj4hrv4p 4k1ctons. The atom is

  Materials in which the electrons ax,+u4 9v 2:o:aqtgv4az9 wxpw9us daf re bound very tightly to the nuclei are referred to ,wqvgaz x99ufu42 vx a ::swo94tp +daas

  Materials in which tb35/ms 3b6ocgsh.z d; e4elxj8d 2pl jhe electrons are bound very loosely to the nuclei and can move aboug46bm 3po28 cjhe.des bjdl3ls zx /5;t freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. Th4v zry2h yp(*rzv,w6 he end of the my4ph hr(r6z,2 z *wyvvetal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutralb bwc5.o96ot5rmkv vkk4 tok e 0z1:;z. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is g.ok zrz;tmobvt 6b w k4:k5cv19 5keo0rounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively9v u a)o*yul/ns;slrrt*n 8w0 ?

  An originally neutral electroscope is briefly touched with a posiq;)kj +txdguhd ,7u ;htively charged glass u7 u;dqtd )g,xhhk+j;rod. The electroscope

  An originally neutral electroscf ; 6xftybu )+jmes-3fope is grounded briefly while a positively charged glass rod is held nearfxj 3)buffye-+s m 6t; it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electr p)aflw :awjb/uyc+: .oscope, and the leaves separate. Then a negatuaa/b)p+lyw:j:.wc five 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 table. A neutrazd6d y5,7 hdtqr mt+7il metallic ball rolls straight toward thed+i mdtq5,7zydt67r h 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 Conh:-l5 dx s.vuulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatedfqkrm*fw(hvuif*-xc o;f6 *g -;:qpb by a distance d. The first charge is larger in magnituwrcq xi- ;ghump(fko*6ff-*bv: ;f*q de than the second charge.

  Sphere A carries a net charge and sphere B is neutral. inr0ng 7k1j4x.m0pumThey are placed near each other on an insulated table. Which statement best dek0.4gn pmi0ur7njx m1scribes the electrostatic force between them?

  Two charged objects attylbds+ug1e6v p h ;j q4.ik5q9ract each other with a certain force. If the charges on both objects are doubled witeuyjh v qpld149b5i;6kqgs+ . h no change in separation, the force between them

  Two charges are separated by a distance d and ijp st35*z7z1d :z7 s he3oyngexert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what a:37 jdz hgs pzyz *i7n1est5o3re the new mutual forces?

  Two charged objects attract each other with a foxn2;ug2mybx/wa k2y 8 rce 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? Tyau8x/g2;2k bm xyn2w he force is now equal to

  An electron and a proton are she:xz1la0b ga vnu+ xsyo- 0*5eparated by a distance of 1.0 m. What happens to the magni o naa:bgl*5e-hxux s0+y10 vztude of the force 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. What happens toyk1/d5i;g5jw09l lxenz gsoh2b-j p+ the magnit ; hpljg klxob2-y95dnz je1/i5 gws0+ude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separ6y 1 gpd7lmb,c 33dw2aaihkb *ated by a distance of 1.0 m. What happens to the size of th,2wy3a cl1idb* 7dbgmh 3pak6 e 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 center of a i/k8y,tns1b ww )(czhfcw:m6 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. n 8/t)w( ww bics:,1h6yk fcmz 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 square?

  A point charge of +Q is placed at the centroid of an eqp 99v+ k:lermmuilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an elmvk9m9pr+ e: lectrostatic 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 vectorl. ywto7(fh +lov/a c9?

  At twice the distanc;*zueb0qr.gk, 2 wjp w10hetve from a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negativevfqjg9al3;6vlsr r h 3c ,54t;c.eipbkm6y +z and positive charge along the line jotp;a;rz y3v4qsv f 5,ebm+li lkr h 6.9cgjc63ining the two charges?

  Is it possible to have a zero electric field value between two posfc vpa4 cm f.7(dj3k3yitive charges along the line jaf kdmvc 73p3(j.yc4foining the two charges?

  Electric field lines near psitive point chah3yqvxy26v +36( zx+nxy1 lzc/iy cw7 b(aseorges

  The electric field shoa4/m vpgrrjxf/o5, ez, z7 /pgwn

  Can electric field linesf zcib ya rsi0/3od3+* intersect in free space?

  A solid block of metax9bs6ko yazube0n 0z jeva-p8c9(4( jl in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the kb (sx ab 9eoz (4acvn8jj0z puy-069eelectric field in the block's interior.

  If a solid metal sphere and a hollow metal ifcs0f .m78rh9i,xrosphere of equal diameters are each given the same charg fiir7x8h.frc 0o9m s,e, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a ron5/ge)xcw, w egion where a uniform electric field is directed straight upward. What can be said concerning the chargeo,x )wce/nw g5 on the block's top surface?

  If a conductor is in rsaxa1 q 1cx87electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a dbkxt ;ggb.3n:eq mq,m::jj5 hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field attmgjdb :j k,5 :bxm geq;q:n3. a point directly above the hollow sphere has

State three properties of conductors in static equim)5 e h;/zwic8ctof0 blibrium.

State Gauss's law.

  The charge carried by one electron 35e*,yamioam 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 cha4,4ud0+3gf kploncf r 3us4 ckjas/(lrge of +2.00 mC. How many more protons than electrons does this piece o a,o44jn43u kk3 fd(l/clr0 upfss+cgf plastic have?

  What is the charge on 1 kg of pro ;zm7)8,g;fe:mvakvz ujly9 htons?

  An atomic nucleus has a vi (yaov 49/dkwgg9.ccharge 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 c(:o odw.afw2-czkrv.u+ i4pcharge values of 2.0 and -4.0 mC, respectively. zc:oaoc+(2i.-kwdu. r4vf pwWhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m fromrbbyl11i xcp+, d7s6d a second charge, and the force between them is 1.0 N. What is the magnitudx r6py b,lscd+i11b7 de of the second charge?

  Two 1.0-C charges have a forpr n-8byfaoc *feks 7ru- :q5/ce between them of 1.0 N. How far apart are they?

  The force between a (i7nd7lia 2 yfgvt6 :w$30 \; mC$ 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 1.0-N force. If they ar g:gsjy t (sxew+e 0+:5.fvgsoe moved to a new separation of 8.0 cm, what is the electric force between them?stgx(gy 5 +f0j+w::sovgees .

  Three identical point (getyvb. : hl2g5 vkg3charges 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 thirdg:h.v vlb 3ek2g(g5ty is 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 charge of +2.0 mC is p,0yh00iox) e zs cdkq2laced at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 100 cm mark. What 0)xezik2qsoh0, ycd0 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 p kd 0vjh7) .b/hok87:j6mcx gx6nkwvwositions: 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.kgo:mw.6bwd7v6 0x/7xkh n8 jchj)vk What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed a rmpykcp.7i+.kp; 3ofn x-l r(t the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that a ir poyx7+mkrfk.-.np;3 p l(cn 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 (0,72 2q *ysiddlk;b:q b,mqt1t ehoa0s9 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnituo*91adt mss0e;t, h ly2i bbqk:q2q 7dde 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 at (0, 0.10 m); Q3 = 5.0 nC i ss2)nulw5kuyql;1 u/s at (0, 0). What is the directionlu/ nsy2 1u)wqlsk5;u of the net force on the 5.0 nC charge?

  Three identical charges of 35p hlsh.4)s1k puf1d ylm:2sl.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. Whampsd1k54 ) .l syup1fslh h2l:t 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 +q0(dvm7r9 tx/ rs aqnm. At what point, on a line between the two charges, would( xt9r+anrv0dm q7/sq 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 = ph*q n2 cppi22cs 7c wqg11d2j4.0 m. Where on the x-axis can a2qpqc p1 7hpc2*g2dn2sc1iw j third charge be placed so the net force on it is zero?

  Charge +2q is placed a qy: 4z1tcsun68 3zeuzt the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the forceuz6y e 8z31nqt uc:sz4 on it is zero?

  A copper penny has a mass of 3.0 g. A toe9w2g z8upi5d tal 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 the51( o i yman..zyid9op force of gravity by the attraction of a fixed proton sdy.omopa91iy zi(n5. ome distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are v 4yan-xoqhb+x w7kx+23)j g pjyc /q0 kav,.rhung from a common point by nonconducting threads whiwponaky xkx q,04x3bg ) -v./cj j+q+yr27ahvch are 30 cm long. 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. 5x;ag7e u*tuyWhat is the magnitude of the electric field at a distance of 5egxuuat;y*71.0 m from the nucleus?

  What are the magnitude an2me +7ry3gnf c-n j7kqd direction of the electric field at a distance of 1.50 m from a 50. j7f2q+rng c37ymn-ek0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thet3* ifz0jxiw3s ffs0wcd1 + v* magnitude of the elec3c310+ivfs*zwfws 0t i jf* xdtric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What -hl kdsu a2 (ib93dev6 l1z.qais the direction of the electric field? 2 .6a1lil(b a-s9qeuhdk3zdv

  A 5.0-C charge is 10 mgvgwg93a8 f5o yd0 0tr dka;3m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charget 3vrdf ag0d3w0aky 59og8; gm?

  Two point charges each have a value of 3.0 C and arqb *qo7;o ks3we separated by a distance of 4.0 m. What is the electric field at a point qo3wsb* o7 ;kqmidway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sti2dc gw q0t3df(ck and a -4.0 mC charge is placed atq0 gdw 3(dtcf2 the 50 cm 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 mojnty4gx6y 40 C charge0 gyty j4o6x4n is placed at 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 p2x *kv;i3ar xzlaced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between thxxk3* ; zvr2aiem?

  Three 3.0 mC charges are at the three corners of a square o7l m ebk jsy/dw,:jn03upmi ;2f side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at theue2/i;kjp l7 3jmm:wsbyn d,0 center of the square.

  Consider a square which is 1.0 m on a sideekn;gm tn)* zs ma58fi6/+ojh. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, *) mk6m5 gnznf;jot8s+/ihae 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge ,i4( gm;l4)drbb cowcvr 6g6j of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of thi4ovjw, 4b);g( 6cbgi lrrcmd6s electric field?

  A particle with a charge of 4.0 mCvi,m/)l f ca99 l v(ikv,4wwxl 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 eley f)dk j )ewyd-c. m.:o7a9ctb)f fmx(ctric field of 6000 N/C pointing downward. What charge must be placefy))md wmd)j9ayox7f c e(.tcf:.k b- d on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of)pga tv2,a+o:fd/:(f jfts xf -2.00 nC. The ball is placed inside a uniform electric field, antxffj vo)p gf2a:d( :fs ,t+a/d 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. What is0pne ciknn7 4( the magnitude of the elecn 0(7 4pnckenitric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is eu4v18fwf.yp ;d.4g xoi z4akthe electric field 6.0 cm from the ce4xaf4;.4 p.vg oefd81 kuiw yznter of the sphere?