State the law of conservatiw b rp(bb(:i7mrgf. ,don of electric charge.

  Is it possible for twax2e5 lvf(d0 * 0otlouo negative charges to attract each other?

  Is it possible for a positiva) ,67ysc b6lpz sgcp5e and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During th4 pjf-(/h s6zpq dumc)e process the glass rod acquires a positive charge an(4p -6mzd cp /uqsj)hfd the silk

  A proton carries a

  The model of the atom shows +)7 ary* rh+z)7w d,jpxpequw8 6 fshea

  A neutral atom always hag .x.;c(/ecpgpf xz9es

  An atom has more electrons th(n xy0k)2cy.i d tvhj9an protons. The atom is

  Materials in which the electronix 9/,pcduu4 eu1d(o ns are bound very tightly to the nuclei are referred toc9dnd4(u exup u/ ,io1 as

  Materials in which the electrons are bk-o) 2ypdqux e54 nh;oound very loosely to the nuclei and can move about freely within the material are refe ;py 4 nd)2qoxkoheu-5rred to as

  A negatively charged rod iy , ),0auwktcus brought near one end of an uncharged metal bar. The end of the metal bar farthest from the char,kcy 0ut,a w)uged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral.z+di;muxkw e-zhdd*7(y 9d 9+uv2ywx They are placed near each other on an insulated table. Sphere B is briefly touched with a wi-*k+( yz;ewui9ux9dd 2dvm 7xz w+hdyre that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pro3 : rmez--4jvufqjs03o,gu ositively?

  An originally neutral electroscope is briefly touched with a positively a3m .0q* ghc wmzr;:nycharged glass rod. The electronr y30 :hmzcw;a*q.mg scope

  An originally neutral g 4x c*:x;awtoelectroscope is grounded briefly while a positively charged glass rod is held near it. o:cta;g4w*xx After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope,x- 2ptit98u +j*xljxj and the leaves separate. Then a negative object is brought near the elecu+8 ij xt*-xj9lpx2t jtroscope, but does not touch it. What happens to the leaves?

  A large negatively chargecycam 1 84+7wu:xil qzd object is placed on an insulated table. A 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 the first ball, strikes the first ball, and stops. The first ball rolls forward, but does not touch the negative object. A4ac1 +qmcxi ul7 z:8wyt 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 Co:fyxp6:k*2.oyi,jt s b;uihc ulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fi546w*4 m7l uev to+nbnq,dggmu,w4pl rst charge is larger il o+nlw 4 b5 w6gq,me ,vugpdm4u*nt74n magnitude than the second charge.

  Sphere A carries a net charg4 c58d wc9 5ippjrm0yge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes tjp9cgpm 5 dc04r58yiw he electrostatic force between them?

  Two charged objects attrx3bt/y1z jax zn56 mh2act each other with a certain force. If the charges on both objects are doubled with no change in separation, the force betw2bxmznt/h y3z6x aj15een them

  Two charges are separated by a distanc(yimv gy-marj23 0v4m e d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3,amyy jvm(m4vi- g0r2 3 what are the new mutual forces?

  Two charged objects attract each other with a force F. What happeqo0z2asnwnb 1g pjbe4tf 2 1;)ns 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-four102e jwgf nozb nb4 qp)ts12;ath its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happens ty 0vvc j6pegi*.eku04y4w h m0o the magnitude of the force on the proton if a second electron is4k4i p .y0u eg6ejcw v0myh0*v placed next to the first electron?

  An electron and a proton a;vni7a:x a0 .wuilmw 5re separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electrow7a av5n xui.m il0:;wn if a second electron is placed next to the proton?

  An electron and a proton are separatggbyz;+x 0 sgxkp :l7cd.g3k -3nq v4teqt (;ded by a distance of 1.0 m. What happens to the size o 3g407d3n k :zb;cxpd+(t gvesx;-g.glqkyt qf the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is pih-*ojz1bg. +3c nisb) ebiu4laced at the center 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. Wh bu*b4-ij o)z13nbics .iehg+at 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. mq 2jjulbe(d n*1-ic4/kog;z When a second charge of +Q is placed at o(/i2oljqd*nzbju - ;ck m 4g1ene 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 placed at one of the other vertices?

  Which of the following is not af2w 08qzov+y tmt2h k13:sec n vector?

  At twice the distance fq 3.smq:)8wio km kgw+rom a point charge, the strength of the electric field

  Is it possible to have a zero electric field vpy*ker+e;ez :20x c umalue between a negative and positive charge along the *er;0ezmykxe :+2 upcline joining the two charges?

  Is it possible to have a zero electric field value between two positiv(u+tq9ftq42hj; cug ge charges along the lifquc 9g2t ;u+qgjht4 (ne joining the two charges?

  Electric field lines near psitive poipl c35xk7tw blb81fg7nt charges

  The electric field shown i;q+jbk 3 fk;q czb,y;

  Can electric field lines intersecr ;p6qu2)p sxrt in free space?

  A solid block of metal in electrostatic equilibrium is placed in f3 bum xj)je5ki3);qwa3ais 9a uniform electric field. Give a statement concmk ;a u5w3iji)x)e3qa bjf3s 9erning the electric field in the block's interior.

  If a solid metal sphere and a+vzn10l gs/f k8 y,bzhw:v.vo hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surface h+lv1k:v./f ,sv8zgwnozby0is

  A cubic block of aluminum rests on a wooden table in a regiol.j k3sv *fjw*hw8 v;jn where a uniform electric field is difh*vjwsv w8lj*. 3;jkrected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an ed 3)sm*kkg8s:kbt. vj lectric charge

  A positive point charmsjiwme 5z9 a1 6-g,5dq(t5s gfzh n-oge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the elec-sq t f91do5 hnmezajws556,gzm g-i (tric field at a point directly above the hollow sphere has

State three properties of conifer(v xmj:) t)r 5t3bductors in static equilibrium.

State Gauss's law.

  The charge carried by one elect.4rord 8 9z(ys amom5vron 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 of +2.00 mC. How many more protons than el11vo0prp9 bo 2ufxg1 gect1gbouxg 1 rofpv1029prons does this piece of plastic have?

  What is the charge on 1 df(9:pw5 d9.doax pzsx m*u )nkg of protons?

  An atomic nucleus hasjg2jjxe. 6ctxj9un( / a 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 values of 2.0 and -4.0 mC, r9) smombna7*r espectively. What is the magnitude of t na*sb9mm 7or)he electric force between them?

  A 1.0-C charge is 15 m from a second charge, and th,clg(tip.l n 8e force between them is 1.0 N. What is the magnitude of pn,.8itgcl l(the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are the 2be,hizc2 gyef c0 7: y9x5ioso6r*lq/v* vxly?

  The force between a kcft;k 3 y*(iela-t rh.q-jw0$30 \; mC$ 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 forcy-boxb8b;c+xy5qn, v, 3 dpzn e. If they are moved to a new separb 5ocy, -38 z bn,+qybxd;xvpnation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC arexxw qo ,w;2m.ao qdmi;f/), rg-voq c11vugb) placed on the x-axis. 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 which ac / i ;;1uv2dvrxwa)g-wqg 1 oqcxom.,fo) m,qbts on the charge at the origin?

  Three point charges are placed on t/ pgb pw inxq w/j q22yz )db/3rk40vtyo4c/b,he x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +4qyb g/j//kp2qibyvn0 2c4 z4b,dpwo/ 3tr)w x.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 following positions: lc,hq 9pa8l syj.pk;3Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x h3pq8ys. c,;al9l kjp= -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 cent/e5 a (xr/1*dsq2ftok*kgnw oer 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 o5d x qtso2a*1kego */ (rkfnw/n 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 n39/o( gi5yuvq7m+clx, nhyj kC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the n9oijyk y(+hx3 /cg7un5 q,lm vet force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC ionjn :xar:0-e:f1c ry s at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thej0c1 n:ra:rx -:n yofe 5.0 nC charge?

  Three identical charges of 3.0 mC 8w4 ax6ckfe8uip*eooz v77(b are placed at the vertices of an equilateral triangle which measures 30 cm on a sf*4xe 6 v7iw bcu87a(zoop ek8ide. What 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 bw**h vlp5)vk my 3.0 m. At what point, on a line between the two charges, would it l)*v*h5 kwvmp 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 = 4.0 m. Whkq4. asnt70ex ere on the x-axis can a third char tens.407xqk age be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q i.53wrah5yr4f: b 5v iwylm 0 0)bbspkis placed at x = 2a. Where can a third positive charge +q bh.bmr 5 aywbbpiw 0)ski:5rf05 3l4yve placed so that the force on it is zero?

  A copper penny has a o/6m ke wzxg7 9y7(+w eu-stoxmass 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 agai* 9scmp8x,b u:ey akf:g x-w5vnst the force of gravity by the attraction of a fixed pro9x s,:f*vmyk8xapgu:-c e b 5wton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncon6ncw z 5zcznz1q8kb 37ducting threads which are 30 cm long. Both are given identical ch b c5zz3zkwnqzcn76 81arges, 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 k5n gs-(,qrryd8 +9o+gfx a6jg7 kfou charge of +40e. What is the magnitude of the electric field at a d 5 j6ggqyru 7fk+g +8xofao nrk,-sd9(istance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at aeye it2e 58qr2 distance of 1.50 m from a 50.0-n2 eqit8 eey25rC charge?

  A 5.0-C charge is 10 m from a small test charge. What is th7ho; 9svoo r +cb;5vyiw7-ubpe magnitude of the elew-;chp9i77 br;v vuosy 5bo+ octric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chareut g;rls ip7g y7tdk82ee93 8ge. What is the direction of the electr ygu;2877 8eit3srpktdge9 l eic field?

  A 5.0-C charge is 10 m from a small test charge. What is the ma bahhtl iivw5(xt s1-+mq 79p+gnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?751w++t hi9-x( vbsqitmhap l

  Two point charges each have(i1ix( c6dn:qi dbtklq2pt 1/ a value of 3.0 C and are separated by a distance of 4.0 m. 2:qic6 1 ddxtb/(1iqnli(kp t What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mev;a4 iv-3( ay iz93u1d4 zkki .icsqndter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at t4q3idk z.i9kivc;-ua i z1y(4v3as dn he 30 cm mark?

  A 5.0-mC charge is placed at tgcod d*l sx0rm1+t5 7-mm-vlyhe 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 joining the two charg0golmsddc1+yrlm*tv x -75-m es is the electric field zero?

  Two point charges of +3 47ddrleeu*8s*rc s*u.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the ed* e8r4 u7rcdlusse**lectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squarcrkva,6kk70c* q6m6g.z 8o k; zy/ppvlj) btfe of side 0.50 m. The last cyp),j tp6 k7l /k6v;og8ckqkm0r6.fzaz *bv corner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. C 3f*3ozxc.qnw harges 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 magq3fw3zc n*xo. nitude of the electric field at the square's center?

  A force of 10 N acts on a-4 da) *rp 34yb er9 l5o2tdovr-jj io(ztg8sk charge of 5.0 mC when it is placed in a uniform electric field. What is the mlk34- ergjtr)*sobdav9- j 8 izp2yr (d o5t4oagnitude of this electric field?

  A particle with a charge of 9j5za-.bt ./; fuw ikdceil 3e4.0 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 electrir1/ixg2ou( ,3ucrlqi c field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspendeuoixul 2rr1g(q/3 ,ic d?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. d o(ow0lmk8q*The ball is placed inside a unk08w( dom*olqiform 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 10 cm carries a charge of +2.0 mC. What is the tiz f1nj cruem.p9(ch8 s:o0pne: ,z2 magnitude of the electric field 5.09pnr0io.m snz:zc 28cpetj, f1eh(: u cm from the sphere's surface?

  A metal sphere of radius 2.0 4iqerd*wosi(w +f+1j cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of w i(es 1dq*+wofi+r 4jthe sphere?