State the law of conservationlyey ;8bvh43vh+hzjmt6xl/ , u2u2 iw0p9llm of electric charge.

  Is it possible for two negative charges to attract each orh . o scu9ngr/bc-v*4j6ox6xther?

  Is it possible for a positive and a negative charge to attract ssoqheh. 1(n1:4x bm* unhha92x gd3 peach other?

  A glass rod is rubbed with a piece o8)m nbsf(g7iyf silk. During the process the glass rod acquirei gb 8f)y(smn7s a positive charge and the silk

  A proton carries a

  The model of the atom shown87mr .u(wcr cs a

  A neutral atom always has z0ppx3s6* 1f5yqdxyi

  An atom has more electrons i 0;w.onrgd -qthan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refh h*l jir5d/2a ttqg,;erredt,*;tlh/q jr5 2iahgd to as

  Materials in which the electrons are boun :rz* oegme-)biz 3w8vd very loosely to the nuclei and can move about freely within the material are referred to aszbi8we :eo*-mvgrz) 3

  A negatively charged q5x;(3gvst3dp, ge ad rod is brought near one end of an uncharged metal bar. The xdvgt 5pqsea g d33,;(end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They trjk,c8ageln x 3( pfb807v/ /n;dvcrare placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is c 7/gcn 0er3b8/k lpjc avrf 8nvx;t,(dorrect?

  How can a negatively charged rod charge an electroscope positivgq7a9eei05y p/2g vy nely?

  An originally neutral electroscope is briefly touched with a positixj 0mtuvmm4j*/z5- wrvely charged glass rod. The e*5r x/vj -w 0utmmjzm4lectroscope

  An originally neutral electro5gy;deu (roz4 )pwa6hscope is grounded briefly while a positively charged glass rod is5rou()p ha g;z6we y4d held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope,fv4sm( i gg9m i.1wi5l and the leaves separate. Then a negative object is brought near the electroscope, but does9 mfiivml4(1i gsg.5 w not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated7(s1fqyu 6l f3c-wq a4jri-irwov- r3 table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along-(-rcq 3 rqs 7l yfoiwivj-fw341u6ar 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 mgt5m: dy4tjb9v 6 q m(b;p)fhthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separazjwz9. t(ggc lw4 ol78ted by a distance d. The first charge is larger in magnitw ( zg. z7j9g84wtllcoude than the second charge.

  Sphere A carries a net charge and sph(7 iu7*k ihwea88(l qzewn ul-ere B is neutral. They are placed near each other on an insulated table. Which statement best desl*i8wqal uhwnk7e ((7 -e iu8zcribes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the k5(jaxlto9l7 p*mqs3 charges on both objects are doubled with xtj9o(ll ka7pqs53m *no change in separation, the force between them

  Two charges are separater ts +57 vg ,y+mndm)m;m7mwted by a distance d and exert mutual attractive forces of F on each oth;5m,e rm7) n+mywmt7t mvs+gder. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F 391pprdm rd +4abu p2kav-w:y. 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 r3+-yv41mu2prp:bkd awa 9dpto one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance oya)+ ss7 dvs8gn v:o8kf 1.0 m. What happens to the magnitude of +8:s)sg ad8n vkosyv7the 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 havfrf bdw27)dh jhv00cy*c7 2 mppens to the magnitude of them2*j2cr7d bhcfvw 7 y)dv00hf force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance dfblehk b-) )fr6 (n(r6rfsn2gu 5qu8of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the)8sr()2bhlfk b ruqfd56ef-ugr( n6 n proton?

  A point charge of +Q is placed at the center oft6( :way tpy.5emzpx9 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 twzp9 x6e.:yy (mta p5on 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 square?

  A point charge of +Q is placed at the s. stlzh2)1or:;hd iqcentroid 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 on it. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placedhdh 1srziot:.l q2; s) at one of the other vertices?

  Which of the following is not a vector?. 0 4otft qfay s-upt)j9v5l+x

  At twice the distance from a point charge, the strength of the e+abi8f9 pw4;k a sae4dlectric field

  Is it possible to have a zero electric field value betwe)sh)ai +z+j oh,-kjiuen a negative and positive charge along the )o-kzsauh,j ji )h++i line joining the two charges?

  Is it possible to have a zero electric field va+ cng(. 1*k,2evpj k7qer hvhflue between two positive charges along the line jo.qvh7(1gr2 + pkek,f*h n jvecining the two charges?

  Electric field lines near psitivejkibb2p6z t-efx4 1b* point charges

  The electric field shown b*f urwp,6ck1 ,epx,dt- yc*y

  Can electric field lines intersect in freo;ywuvmr 1 0r:e space?

  A solid block of metal in electrostatic equilibrio9lz pfx8 7t /n3bhr) 37iw zs0ueg(jpum is placed in a uniform electric field. Give a statement concerning the elerj/0snhw9b33zf g)p8ole77 xp(ut i zctric field in the block's interior.

  If a solid metal sphere and a hol6xo2yv:m mzzj4gsba 1 6(qpo/ o 3ofh:low metal sphere of equal diameters are each given the same charge, 1ofm6pgyo:(xm:4h / zz2s3bj 6ovaqothe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table inj9r0;mm nc osz*7s n;s6b2e ns a region where a uniform electric field m ns;s 9*ebs;nn6m2 zs7crj0ois directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium neaxj;81k:g ya2- snrc,d tbud5gzws7z 5r an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that isxb5,5*xj(:t u azllzllct5x8k aq 9 p2 grounded. As compared tlxk:5qj55x*, lzaa2 c b89lxt uzlt( po the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertiestpstk 4g8eo1( of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electr,xy 7prb, 7kkjb**3srd oar4 zn, jm*oon 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 chit 9: y9lrkhefa1-s 9w(fykd+arge of +2.00 mC. How many more protons than electrons does thisy (eaws d-99+ihrtfyf 1k9l:k piece of plastic have?

  What is the charge on 1 kg of protp /6+ksf; ;uimb;f x1ejc5)tqxwkc (y ons?

  An atomic nucleus has a +o,nyq/cq*a( 2jt cfc charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by ps- i4py;uipo)v,, nh1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the eliyu;-phvo s p,n)i,4 pectric force between them?

  A 1.0-C charge is 15 m from a by bsy+nvrn 1 c 9t,xf.-mae,7vi:jm9second charge, and the force between them is 1.0 N. What is the magnitud9ys+a. j: efbm,m7x9n rbyvc-i ,v tn1e of the second charge?

  Two 1.0-C charges have a fqfib8 ff im2)8orce between them of 1.0 N. How far apart are they?

  The force between a jufz(ugq,w5039: -tac afl np$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initial o iguu+puy4pe)q1x* ,ly 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm,,ioyx*pp1 uq) +uu eg4 what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axivm2bu(pb8 j:hs. The first charge is au pj2b(m:v bh8t 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 which acts on the charge at the origin?

  Three point charges are placed on the x-axis. Avo y;sl(8hw.m charge of +2.0 mC is placed at the origin, -2.0 m C to the right a mo(.hv;8wys lt 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 followingt6h)nn q*inx1 k* ysk+ positions: 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 magnitude of the force on then*6qns *yk h+1x)t nki 3.00-mC charge?

  A point charge of +Q is placed at thecp0rr))4k;r 9rxk,pxukern ) 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. What is the magnitude of the force that acts on the center charge if a third charge of -)04r xun;r 9)pke,kxrcrk p r)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, 0.10 m); Q h*mj-nlsb qc q8plx394)tno5 : *pt ywogc3x+3 = 5.0 nC is at (0, 0* pcp:t qjx8golnx)sb nmc 4+ o*5l -9y3w3hqt). 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 = -1.0 nC is at (0, 0.10 m); Q3m;0. ea;34f uamvnwrimd6p 0y = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge?fnwe60v;;4 ammdup m 0. iy3ar

  Three identical char.i0z+0n nrqki*mc au g2dy:tf 0bo b1f8e/sf8ges of 3.0 mC 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 act0 iacoebiq uk1 y+8bz. r:0fd*nn2/0gftfs8m s on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what 6o4evmnu8eli80* y 5i ninib0kpt9d/ point, on a line between the two charges, would it be possible to place a copi*b /e64 0 5nvlen808ki9itiunmdyharge 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 torn;n.tku54r . : luow4 ci)aat x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is z.rw)ualc4t oti5ku .n:ron4;ero?

  Charge +2q is placed at the origin and charge -q is placed at xrd .wdgoc h774 = 2a. Where can a third positive charge +q be placed so that the force on it is zer74hr. dwd7cg oo?

  A copper penny has afnd t4)n.zb hww vh-x+63sy.u mass 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 gmv9z;y ;ydmt+0sa 5: zdh v/igravity by the attraction of a fixed proton some distance above it. How far above th gv:m/;;5dasv0+mh9ti zyydz e electron is the proton?

  Two 0.20-g metal spheres are hung from a common pyivs34e*pwz7t 7c7 l woint by nonconducting threads which are 30 cm long. Both are given identical chwts 7l ycpvez7347 *iwarges, 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 char,g9w9 ts)emj vg) xu+cge of +40e. What is the magnitude of the electric field at a distance of 1tg 9jx m9cv)eg)+,suw.0 m from the nucleus?

  What are the magnitude and direction of the electric field8 dur;w5)w*b eesjlr: at a distance of 1.50 5 e)8b luw: s*j;erdwrm from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What io2 u ,y)t-zz5 hjxdz xt,-myj7s the magnitude of the electric fiel 7yu mt 2x,zzj5d,hy-zo-xjt)d at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge.fn.:9j4 696x c+pqtvxtgba m m What is the direction of the ele p4 :jc xtgt.nmf a9+xbm6v6q9ctric field?

  A 5.0-C charge is 10 m from a smalvthc.y8d9av y-1l 2ps-: bd zhl test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test chargbhvv .z1l8: 9 dhp -ds2-cytaye?

  Two point charges each havrdjh (8hroq 8j 75y 0-z0cqszpe a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway bet8 7ozcqjq 0s5j dhr8yr(z- hp0ween the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick a uj1e(6 8 -of*6noxlmcbg m:vsnd a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 3:m1f n(cljo ex*6u-m6ovsb g80 cm mark?

  A 5.0-mC charge is plackk3w lp m( -/xcjyl x f;q1((c-j:oieoed at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line j;k-f(1 lkix:w(o-j o qm/pj3(e xcycloining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are mpg3 zcf t2s0p*ak)y0 placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between t )pyg3*c0zast pm k2f0hem?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The leyb*no i edvw8 i3-k,4j78yedast corner is occupied by a -3.0 mC chwb-vki*dj 7,4d8ine3yoe8y earge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are plimd ewoi3vf20 b b*n7*aced 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 magni d7b *20 iio3w*bfnmvetude 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 placedy9-s1n.l4e 3 rq x2 :kvek5hgktkk-ro in a uniform electric field. What is the ms5kk94te3-.1- klhy nr:qkkoev 2gxr agnitude of this electric field?

  A particle with a charge of u4qj u7:s( pht(wtgu(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 electric field of 6000 N/C8oejqtc5 99m 91 )aivzf 8ptju pointing downward. What charge must be placed on the ball for it to be sus vpm)8e5fji1t9zu ot8 jc9 qa9pended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The j/he6 w p*dvv2ball is placed inside a uniformdj*e/2hv w 6vp electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius pml 9gfb /hm.+n,i -yg10 cm carries a charge of +2.0 mC. What is the magnitude of the ele9pm il-,f/+ hmggn by.ctric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Whar;d:th j1g i ++wwyrn3t is the electric field +:t ;hwg31yj+nwrrd i6.0 cm from the center of the sphere?