State the law of conservation of electric char heeem)(bme-g- z2ac4pd m*2d ge.

  Is it possible for two negative charges to attract each ots/c ckhvip c2bwh3zgq)8 44z, her?

  Is it possible for a pospygt x,fqwfd59w q((0itive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During thka)t24 6q) 7;p5dbhj lbzi sl s.dorh0e process the glass rod acquires a positive cha b7saqd jsiz;)pk2 ht)h4.l6 dl b05rorge and the silk

  A proton carries a

  The model of the atosja,z6bov)e 07eo9lrz ot+5hc 3p 0 k2u p8munm shows a

  A neutral atom always ha29nm4m bdzd ,as

  An atom has more electrons than protons. The atom*9m/tj;u1 nagcmy uoj.w3 so) is

  Materials in which the electrons are bound very tigi6xl vf/:)aw4 gxr.jrhtly to the nuclei are referred to :4g /.valx 6ifjrrx )was

  Materials in which the electro8n,l-zg/)imj2xj-+55dun sgw xcf wx ns are bound very loosely to the nuclei and can move about freely within the material arnzn5-jlji8s2x fg-+dx ,uw m cx5 )/wge referred to as

  A negatively charged rod is 4ey:g-bj 1ovmgg+-yr brought near one end of an uncharged metal bar. The end of g4vm- g- y1:bj go+erythe metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B -hzosooy ;ld,01;ojois neutral. They are placed near eac hzoo 1lyooo0;,j-;d sh 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 an4 j68mu +d+t:vfh vfym electroscope positively?

  An originally neutral electro5enyt,4j2yxmei. *bt2w 9z +vzh pl q5scope is briefly touched with a positively charged glatzp hq,ey2eb.+w5 l9m*ti4 v5xz yj2nss rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positive8mzz *am3:d i-zq.foqly charged glass rod is held near it. After theq*amz.mzq- :3 iod8 zf glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leav65nfrq ))z0p+uzy aghes separate. Then a negative object is brought near the electroscope, b+p5yq0z fn6huzr)a)g ut does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. Aj;pr/i zl v*b5 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 thez *b; li5v/jrp 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(72yqr) yo*hy f xkkx;ucy23l the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatz+, crcqjv l upkjp.k;;fc.) t4n -g/ped by a distance d. The first charge is larger in magnitr pz ujfpj,kp/qc)+.n;.clc; 4ktv -gude than the second charge.

  Sphere A carries a neg no)(s: o muvel z1k8.)i8migt charge and sphere B is neutral. They are placed near each other on an insulated table. l)n8 igozm)18u(.se :oi vgmk Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges rk**:ur uf8m ion both objects are doubled with no change in separation, tur: u f8ir*k*mhe force between them

  Two charges are separated by a distance d and deh/c 5fji:l ;exert mutual attractive forces of F on each other. If the charges are separatejcihf;/ edl 5:d by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a forc(yjaxo/ g ;*ybn4z9bae F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separatiy/bx*a( nzo 4by;9ga jon 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 uzgqx h;:)k q(m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electron g)kxhu;(:qzq ?

  An electron and a proton are separated by a distance 4tafl/3n k xci/+rmay x47vr(of 1.0 m. What happens to t4v7+f kx (yl/m/ita 3anrrxc4he magnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separatedz 6,;ir4zw)w, lfvhx6) twie2.kqljs by a distance of 1.0 m. What happens to the size of the force on the proton if the;h zx .4e q,r tf6kwj2)iiz ls6w)wv,l electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second point nch2;x 0xaa rzlxt+n 00m9vr: 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 pos:nl;00h nzxt9 v x0crxaa+rm2itive 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 square?

  A point charge of +Q is placed at the centroid of an equil /:s ozb-iay5+amd t(dkg 8nd3ateral 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 charge of +(yi5b mdna s-d3otk/8:gzd +aQ placed at one of the other vertices?

  Which of the followinct m 8)9piq-rsg is not a vector?

  At twice the distance from a point charge, the strength of the electric fielay.(z wwjmdd*mbnfgs 9/9r51d

  Is it possible to have a rri xzcp5*v.6v ;cv;w zero electric field value between a negative and positive charge along the line joining zvrrwcvpi c* . 6x;;5vthe two charges?

  Is it possible to have a zero electkgte9eu 1k )2fi eg-a2ric field value between two positive charges along the line joinig9ee2tafk)u 2-k gie1 ng the two charges?

  Electric field lines near/ (9f rg ;tbtd ydgw8uo1(n2rt psitive point charges

  The electric field sh sz w4 jog s8/bc*(oqa70yiwi0own

  Can electric field lines intersect8z;u.o *g acm nx-o8ax in free space?

  A solid block of metal in electrostatic equilibrium is placed im w sf.cvs pn;3wcdoj1.p403on a uniform electric field. Give a statement concerning thejww.fs;p s3 0c1v4om .3pnco d electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamee. od3 *w2j.o()iz bu o+mhrdnters are each given the same charge, the electric field (E) midway between the center and oe uw+ndzjdmho( .3b.ri)2* o the surface is

  A cubic block of aluminum rests vmao )3ll mtd:ze5 w(1on a wooden table in a region where a uniform electric field d1m a5ewv lz3lt:m o)(is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electros2gh j mzem..*rtatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spherc m c7uq5hnp: e* 1jc0kauub1(e that is grounded. As compared to the case without the hollow sphere, the electric field at a poin( u*qak:n7m15eujc1 hbup0cct directly above the hollow sphere has

State three properties of ctt-1n ws1o.. hzbvu lad8*mx9onductors in static equilibrium.

State Gauss's law.

  The charge carried by one es.rd; jw 1nn93ck 8fkk ws+ui6lectron 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 yaz9fk q 79sx+cqizk46ra a9oe;;r.aof +2.00 mC. How many more protons than electrons does this piece of4 kks ia+9faq76raco;q.ra99ez;zx y plastic have?

  What is the charge on 1 kg oftx0qt-b9a- vg lnw t(rx)sc+* protons?

  An atomic nucleus has ad gb i:x97 xln:d ai/w4,8xmb4ily6wt charge 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 valupcp n hdn7 x;).raob86es of 2.0 and -4.0 mC, respectively. What hd6na8x) ppbn. c7;rois the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chfp74+2a a lhscs*zag 1arge, and the force between them is 1.0 N. Wf+ a lcg4s7s1ha*z2a phat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are they?d w9)ika1ps bbl8 0+wgjm*;+o-kn qb q

  The force between a .;qt9p,ey qiw $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiall0uvrs05wyy stftb6/2 y 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 forcy0b5 wsfr uyvs0t62/ te between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. .7slc r)ccrp,gg l r0cm x+xed6q:z(- 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 electrostatic force whd:c 0r7e(cr xx,-m gzrcq+pgs. l)c 6lich acts on the charge at the origin?

  Three point charges are placed on the x-axis. A char tu)sqg kcp9kmhmdxw.b6 ,3;,ge 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 elect,wm6 ,x;kpb)s ht9 3.uqgdk cmrostatic force which acts on the charge at the origin?

  Three point charges are located at the following position mmwm faqk2s)3+4bb:k-p*nx uxe;q:ns: 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 mk qe;m4xk-a:u+)nb* nm ws:mbp xq f23agnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point ch 6i;d jgz0jkm*arge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on the jkz6;g0* jimd 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 i1b6*kcf )izuz1gcx j 0s at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0)fgj x c 1ubz6i)*ck1z0. What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -7o91hgo q8 zfx7l4t/nar+,.wx ecxbk1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direct . z7/x lk ageo7tx1b 4h9cw8frnqxo,+ion of the net force on the 5.0 nC charge?

  Three identical charges of 3.09( *wpo*l obrbyipii u )7hh*) mC are placed at the vertices of an equilateral triangle which measures 30 cm on a si w *p**l7ii) u)ohbbioh (r9ypde. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q*7eaafkj:wx 9 1hn syo7esk0+ and +4Q, which are separated by 3.0 m. At what point, on a line betaej:h9*y7o +wn1 k0fkxse sa7ween the two charges, 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 an2g ns,o5r6wel or bk/ 8*tr3ypd a +9.0-C charge is at x = 4.0 m. Where on the x-axis c/6t 82nosl5wg,e b po 3k*yrrran a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. nxhgr1* 6la2 c4i; ywa) d5spu Where can a third positive charge +q be placed so that the force xrudg1 ;p2h) 5al4ws 6c*iynaon it is zero?

  A copper penny has a mass of 3.0 g. A total of )ak5woi6n/b qxkz 2(z tkxvk2p3v39m$4.0 \times 10^{12} \; electrons$ 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 atte*lj1k sy b;sb,sur(7)s (y 8xc uuf.oraction of a fixed proton some distance above it. How far above the electrone.s ksscu(x(b)7suy* 8j,lf ruy1b ;o is the proton?

  Two 0.20-g metal spheres 5q) k7ogdhpa-0s rsl) are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic rh) dgsoq0p a7l)krs-5 epulsion 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 ele 8nwm( 6f0fakc) f9mtvctric field at a distance ofcw06 (f8ffvmmna9k) t 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distancee uhzshts+1of,-5n89 o.cff e yw45fo of 1.50 m from awe1ohc5 4f9ofn 5u.+f,-t 8seyhofsz 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the 2cu/bz;zzbm2 r 3ewf:electric mzwb; uf/2cb:zez3 r2field at the location of the test charge?

  A 5.0-C charge is 10 m from a sma2oh*6g .dg sprj1 .vhh5m1e opll test charge. What is the direction of the elecmsrhp.odeo*51h6v j. p1g2 ghtric field?

  A 5.0-C charge is 10 m from a small test charge. What u*v-yb0rgovm- *1mg q is the magnitude of the force experienced by a 1.0 nC charge placed at the location of thev*o m1-0gu br*ymq-v g test charge?

  Two point charges each have a value of 3.0 C and are separated by a dist qo8(em aa:9caance of 4.0 m. What is the electric fiel98qam:ae( oac d at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and k*dbz :p,m-; - tourcqa -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mark?*r:z-c- ,om;btkqud p

  A 5.0-mC charge is placed at the 0 cm o3o d.msq*u,zmark of a meter stick and a -4.0 mC charge is placed at theo3m odz q.s,u* 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 at6ob;vn-6b9p1. g5arcgfoh yp3h9lt q x = 0 and x = 0.20 m. What is the magnitude of the electric field at the poino qrg6a691potb - 3byh9vp nhl.; g5fct midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m.-c7fkb6 *lb4ukq3 nd s The last corner is occupiedk 4s-kulb7c63*qbd f n by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m ond5.9yzbl ad wusep +4,b7vaw9 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 magnitv9p+swa, .uzba 497l 5ydwebdude 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 placed in a uniform ftg(q8 y+9 zqvv wwn21electric fielnvw2v+y w8qgztf q(19d. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hsn03dhds9e784 h uw); v+mivqtjb/imas 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 fieyh -bg hn hn4+kdp*93v : xl;ya.0omibld of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended3:;l xy+y -a0 nm4d 9bhv gpboihhn.*k?

  A foam ball of mass 0.150 g carr esky)ot mn6aurs m 470a/3j4jies a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What arra syumt )kesao47 30/jm 46nje the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a cp */)sdg7y .hov 3ufi 2ktj1lgharge of +2.0 mC. What is the magnitudegdh. *ig /jv)1ps2of7y3tklu of the electric 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 the e /1 lg4tcrvg./1lylp nlectric field 6.0 c/nlrgygl 4.lp1c 1/vt m from the center of the sphere?