State the law of conservation of fg ndf 73gluoc(-n* f8)lgh(melectric charge.

  Is it possible for two negative charges to8)fw 2iba6z no attract each other?

  Is it possible for a posisnc;;0h-cq t utive and a negative charge to attract each other?

  A glass rod is rubbe6 qh 4p1wxz8har1u -nid with a piece of silk. During the process the glass rod acquires a puwaq4inz8h 1r6 1 -xhpositive charge and the silk

  A proton carries a

  The model of the atom showxcwc8e b+;u .as a

  A neutral atom always*c p o5up ll69,cq+i zm7az3kz has

  An atom has more electrons than proton3lxyjvx7 d8 3srp/bo9 io d7h0s. The atom is

  Materials in which the electronpr7e /e)w6uf js are bound very tightly to the nuclei are referred to r6p w 7ee)/fjuas

  Materials in which the electrons are b d1sik5b few4,5 wkrc0ound very loosely to the nuclei and can move about freely withifwd ric1s,k 5wk4b0e 5n the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. Tlmi6p5medj );he end of the) lp5 ;mde6mji metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They y8 .:jslck(xe are placed njc k 8elx(ys:.ear each 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 an electros0(jww6oi dgd vsth;q jl.,w)9rug; o( cope positively?

  An originally neutral electroscope is briefly touched whb flaj0 u 9;lassn28*ith a positively charged glass rod a*; lusb8jahf0lsn 92. The electroscope

  An originally neutral electroscope is grounded briefly while a positi:faaor/mf80 v ww.(2zlm/;pc ngx yp4vely charged glass rod is hel/vf0mxrc w/ gyn:2f w8.ola azp4; (pmd near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and tpoud/ ob; ;.rzc+bd 6ehe leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Wh/bddp;b zcoe 6r.o;+ uat happens to the leaves?

  A large negatively charged object is placed on an insulated tablnu78o /,hcjne-u1km cwroi8 mj3i6 +ce. A neutral metallic ball rolls straight toward m3c+,jh6unc 1oo8juikwi /-rcm7ne8 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. 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 Coulomb constantplg1gaz*dm ey 4ypn -f;,pet 4li39-g $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge isjf0jwbngkh6 z k.h li72u /37o larger in mag/ g07k f7hjnol6w2.bzuihj 3knitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placedg;ve f-gny03)q u 3nsep3s7 mx near each other on an insulated table. Which statement best describes the electrostatic force between them?xg70sfp 3n m; 3ugvq-y)n3ese

  Two charged objects attract each other wi xdafh rs)xmq;:*18rjth a certain force. If the charges on both objects are doubled with no chrq a r;8fh):d1xjmx*sange in separation, the force between them

  Two charges are sepa*u8 de7m h2ks)urfl4s rated by a distance d and exert mutual attractive forces of F on each other. If the charge 8fr7 sue)mkuh *l2sd4s are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. . p8h1.fqws --uk gyt+ *cvgkp What happens to the force between them if one charge is doubleg+ qvc-kws*pu k1.-8.g pythfd, 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 ared. o)1xc0rv jl + gtc-q(z8vgs separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second e.g0 l- d xsc8rtcz(v1vq +o)gjlectron is placed next to the first electron?

  An electron and a proton are separath0 wnxz ce;s,;ed by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second ezx0esn ,;;wchlectron is placed next to the proton?

  An electron and a proton a+ cad reg)28:mqbg n1qre separated by a distance of 1.0 m. What happens to the:br) 8 c+dmqqgae1 2gn size 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 cente wp8bbid)n)u2r of a square. When a second point charge of -Q is placed at one of the square's corners,8ub)pb2ni dw ) 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 square?

  A point charge of +Q is placed at the centroid of an equilateral triangle. Wasfz k 29ojc k89(nvv4hen 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 for98zfn oj 9kakv(s4c2vce 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 nn w/+(s+vt mtr93 6)gqwr bpcbot a vector?

  At twice the distance from a pointe,e /qc vwq ofh;i9 (.uuwvg3) charge, the strength of the electric field

  Is it possible to have a zero ele6f.m:fh2 hi xxn0fs) sctric field value between a negative and positive charge alonghnf2.: smhfxsix)06f the line joining the two charges?

  Is it possible to have a zero elrbb-ropf g q9*0p8q7lectric field value between two positive charges along the line joining the two charggp9*70lb q b f-8oprrqes?

  Electric field lines near psitive point-1o+o(xf hevg 9eky)u charges

  The electric field shomyc:-a9;wovk yh);5w ia/th awn

  Can electric field lines intersect in 011ud9 l3ztpnka xupz,-1qg vfree space?

  A solid block of metal in electrostatic equilibrium is placed in a uniformxfs:qgleymz2k ;.7n * electric fiel f:g;x*ys qnem. l27zkd. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a a, e2zno sc:iqkx4 cq8yv644yhollow metal sphere of equal diameters are each given thy4c4 sk6 xn8,qc evzoa:2i4q ye same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rn5j7e0 edepy(. uvc*x0xocf j 49fg)jests on a wooden table in a region where a uniform electric field is directed straight upward. What can be x oxfe p y*u )jv(.e0 jdnfgcj9e047c5said concerning the charge on the block's top surface?

  If a conductor is in electrostath.d3 f jd7rl9tic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spj2*lko0xwum 2q6 8vny here that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hnv 26jy8kql*o2 mwxu0 ollow sphere has

State three properties of conductors in static equiliqdb(jq0 yc9wu 4oz cw93:ii40ipqhp:brium.

State Gauss's law.

  The charge carried by one ele:sak 1gocj 0jje6+0v1 vhziq+ctron 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 k p3v3a)l l.vsnet charge of +2.00 mC. How many more protons than electrons does this piece of plastic have?3psla l v3k.v)

  What is the charge on 1bov ntzvpnde5 k;-5 t :r4nl:- )(qkuk kg of protons?

  An atomic nucleus has a chug+:kr l0-)( zhq hxfgarge 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 values of 2.0 and -4.0 mC, ngn+0 eyey-jng2dh87i (hh:2*glt crrespectively. What is th- 7yenricy hh0 h2+: dneng*2 g(8lgjte magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them ise(0t ll. ,6gkrk t3qpc 1.0 N. What is the magnitude of the second g cl,krte.360qlk t(pcharge?

  Two 1.0-C charges have a prvz/v-.wy5k ,cx1lh, p.ymf f)gk k.force between them of 1.0 N. How far apart are they?

  The force between a n(xv 22 :wyiymi(b/gj$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2 jpr8i48.kajqnlj*3 i.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 between jki4*3rl jij.88aqnp them?

  Three identical point charges of 2.0 mC are placed on the x-axikv wn -ai, ly 13kou3cjep/ b/uqav:)/s. 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 lcuy: v,3/ -oukkavi1) qj /enb w/pa3of 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 i5cee:+iui31vxsq ;emC 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 electrostatic force which acts on the charge at thvq i1exe3 cuisi;e +:5e origin?

  Three point charges are located at the following positions: Q1 77sn6hr. cxd q= 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC6s7n7dqc. hrx at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center ofj; n,swqkms + n3w4/0o *gbwhh 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 - nh n/g;qbmw3kjw w+ 4sh,0os*Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0)n ux-: g;mhyvio;2hm e,y7ro7; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on themxm7yig;o2 ,yeu : 7h;ovrh-n 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 =zo7y8 xikg oao *5k*7 l*/hark -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0*yhx7rao8**z5aloi7og k kk / ). What is the direction of the net force on the 5.0 nC charge?

  Three identical chargf ozy4p(bv7aztpe9 mg *;q9t+es 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 acts on any one of the *4tafp zzpmot7+;(q 9vg e9b ycharges?

  Consider point charges of +Q and +4Q, which z8b 6yfusof(c 9l mv*3are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to placfv bz3y*m68uof9 (lcs e 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 ay oq2xx. gc e,1dnd*6x +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on d*1 6.gcoedyx 2qxxn,it is zero?

  Charge +2q is placed at the origin and charge -q is placedxq dfx68 u0-ew(e.f jg4t*bn e at x = 2a. Where can a third positive charge +q be placed so that th4fn .eejq d8 (*0xbe fwg6-tuxe force on it is zero?

  A copper penny has a mass of pb2f3hm0 s,(z 4gpgqv 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 by the attraction of a fixedz 16zjr a-d7kc proton somej7 6dzca1- rzk distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common poin9)q us3ymx al+t by nonconducting threads which are 30 cm lon3lms u+ qa9)xyg. 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 anjruu7 bge n4zovz.462( h*h e charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m frrh2 vou4* z(6jen gznh.b 74euom the nucleus?

  What are the magnitude and direction of the electric field at a distmgz:f uu q48r zqw:k2(:ye5jfvtg+.+:o evk nance of 1.50 m mkv(o 4zw:ezy5: eg2rf:gu ftu+q qn.8 v+kj: from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a smallr 9gq9y 0ru1vr3;ube a test charge. What is the magnitude of the electric field at the location of the test chargga3r9;y u uqbr0v9r1 ee?

  A 5.0-C charge is 10 m from a small test charg*zke8t3hgh;xchb f0in8 8:xne. What is the direction of the electrici8c:fbhn kz8*h 3 nh;x gte8x0 field?

  A 5.0-C charge is 10 m from a smaral , 4dgjyf34q)as w*ll test charge. What is the magnitude of the force experien *aa j4,s) 4drwq3fgylced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated bykng +oq l/ a8 /,gzuex4dvvtf0wf0 ,2q a distance of 4.0 m. What is the nzwal+f//qtuk00gv 2ef8g 4d ,xq,voelectric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark ot4zb d46ggngb: ih. 8rf a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the. bi48 z:gbntg6dg h4r 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a y4nw en6p.87w-b1 l r4az hjpfmeter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charb4wp hw14- jp86zr.eal7nfn yges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20w- yip5uvucc ;)hqt6 :tj2( ia m. What is the magnit: j2a-w)htpq5t c(u6vciu; iyude 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 bm * 7wyswi;(hlast corner is occupied by a -3.0 mC charge. Find the electri(;w*mi wys h7bc field at the center of the square.

  Consider a square which is 1.0 m on a side. Charh,hdczut(3 jwaztr; u o4ic+;+ff8m; ges 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 +h4tma 8j hd o;(wz+;,;riuz 3utc ffcmC 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 of 5. 6 :hjb/swpmrzfy;1 )f0 mC when it is placed in a uniform electric field. What is the magnitude;m :j bpyfr)h1s/z6wf of this electric field?

  A particle with a charge of 4.0 mC has a ma6l*h c4: eh./dnpww8izg yb 9jss 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/k v z58 vhgnyee j3h3z-a,r:)q:4mt9cmm0 yfbC pointing downward. What chh)8cf:m-khm n4,vrq 5jbztm:30g9yzya ee v3arge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 z9h u88 fa7scvf)nz+znC. The ball is placed inside a uniform electric field, and is suspended againsnf)f7z h889cazsu+ v zt 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 is/ ezibd/s/+dl8(qfto the magnitude of the electric field 5.0 cm fro/lzif/d +bdt oe8s (q/m the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the ele * s4lt(- i; vc dba+fjlnc1vft5;pa9ictric field 6.0 cm from the center of v tpci sf5 a;j+cnt-d4iv llfa1* (b;9the sphere?