State the law of conservation of eles-4e0bqabva4 cjgq 1.ctric charge.

  Is it possible for two negative charges to attract each o:/6oc +3zp 5nrnvxxakther?

  Is it possible for a positive and a negative charge to attract eawof) g,;e6 ai g1v7uwpch other?

  A glass rod is rubbed with a piece of silk. During the process the glass rod achn7;5c:p n tv l2c3jlpquires a n h3 ;75 cplcj:2lpntvpositive charge and the silk

  A proton carries a

  The model of the atom shofi6xtcv3xz xr. u :bk/kh)z5/ws a

  A neutral atom always hasa2rn) xm:yjm.d2+v sc

  An atom has more electrons than protons. The atomn lpc2q m6d/ 0m-nf)(gg0ebsq is

  Materials in which the electrons are bound very tightly to the nuclei are oa80of1j d8v-ihftt5- p w*xb/h+ klyreferre1t j8yb- pfi/5v+w*k hxh- f8dt0alood to as

  Materials in which the electrons are boun txomhz0*;tjzu*z0b w zv t 81our;p47d very loosely to the nuclei and can move about freely within p jz hxturzm*o8tv01wb4 z;t7 *;0u ozthe material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. xlu /x*qvq7hr6 jw,zi:du(kv+* qag8 The end of the metal bar farthest from xqv*:vaqk i,7lu/g wzrdxq(8+*ju6 hthe charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plac g;+z/4rsl aabed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. rg; 4l+z as/baWhich statement is correct?

  How can a negatively charged rod charge an electroscope (e()qcz x 6l ox:/lolhpositively?

  An originally neutral electryfn u(m 6801kxctv 7ivoscope is briefly touched with a positively charged glass rod. The electrosc7n1 m8y uvtfk60cvi (xope

  An originally neutral electroscope is grounded briefly while a positively -8hz3/fewes:nq(xk j9e1anm /g 5kwscharged glassw ex8:3h /gmfa1k5n s( 9 jzkqe-e/wns rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, an 9ukodi:k tjt0)*o 8fkd the leaves separate. Then a negative object is brought near the el 0f o8tk)judktk:9o*i ectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is pldiykd(z4hk 1(2btb j1si r c/*aced 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. At no time does either ball touch the negative object. What is the final charge on eac1( dbr(j 4/i kickzbs12t* dhyh ball?

  Charge is

  What are the units of the Co-cpv/: impa:rrckhzz,lg 8 ;6ulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated)-whoyv ,o hd2 by a distance d. The first charge is larger in magnitude than the second charg)2-woh o,y vhde.

  Sphere A carries a net charge and sphere B is neutral. 7 uc.z 4)rbzzoThey are placed near each other on an insulated table. Which statement best . 4uzc robz)7zdescribes the electrostatic force between them?

  Two charged objects attract each other with rbyq1p+5b ars ki8im: iy9 .-ua certain force. If the charges on both objects are doubled with no change i5s1 +i rk8qyi yb-bprmu:9.i an separation, the force between them

  Two charges are separated by a distance d and dpsb6 f7ik 9*jexert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the ned7fsjk*9b6 p iw mutual forces?

  Two charged objects attueyt:-n4e; gw ract each other with a force F. What happens to the force between them if one charge is doubled, the other chgt-4uye wn;e: arge 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 are sd(bpeva ;7a;ks3d*y 1xefu 5aeparated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the fiee a;x v* ad3ku7 by5pdf(s1a;rst electron?

  An electron and a proton are separated by a distance of 1mpo8 rl-mw/5obt0vau +k.aq) .0 m. What happens to the magnitude of t0rak.apw8oov +/t m-b lq5u m)he 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 of 1.0 m. What hapu4wxbr(b *g1y pens to (grbb1 x *w4yuthe 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 center of a square. When a second pca 2iu4prq dapl- 0a5*oint 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 plari-0p25 a*alqp4 uac dced 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 centrpko wqlenqw7 3sh5cqd9 ;w4 ,;oid of an equilateral triangle. When a second charge of +Q is placed at one of ;3qnw l,qpw 9dkcow;7eh q45sthe 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 ajsb7h09n/ r:wnn qpi4 vector?

  At twice the distance from a point charge- xu51qt gn6ci, the strength of the electric field

  Is it possible to have a zero electric field value betw k)meyir: l-n0een a negative and positive charge along the likne-)m 0y l:irne joining the two charges?

  Is it possible to have a zero electric field vewp0q,7e:-)yoki1m t g :p5,fvjaimz alue between two positive charges along the line i-q7pj5tegm :ymkp 1:,ia),f0zeo w vjoining the two charges?

  Electric field lines near psiiqd+ ,1o*n he45ijnxl tive point charges

  The electric field showvz yh9hm 7y t4kv0 m6(,pqp6qen

  Can electric field lines intersect in freegz6z, 8br ml)-1dgt hh space?

  A solid block of metal in electrostatic ,kyls o;9rt-r equilibrium is placed in a uniform electric field.t y,or9 ;rk-ls Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each fd* )p.zqrv*j given the same charge, the electric field (E) midway between the crjz d.*p )qf*venter and the surface is

  A cubic block of aluminum i xrnd-,akd/buj7x(3 tg.6dk9 5 rdobrests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge oni7/x6(nt jr a5dr3bkbugk,9 .d odd- x the block's top surface?

  If a conductor is in electrostatic equilibrium near an /lv7e3g77uzcq7qc wtelectric charge

  A positive point charge is enclosed in a hollow metallic spdv(x8k;x 0br shere that is grounded. As compared to the case witk (x;rdvb08s xhout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrium.lbz(w ;+g vy(t

State Gauss's law.

  The charge carried by o3;z .5vm-bfzhsa 6-i f6 lxzvjrjalcj)f57n+ ne electron 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 protonsb3xe o m*l1 sk *z9(yw7; qau18cspwgg than electrons does (lw*p9gsc1b7yao q z1;sx*e83gmuw kthis piece of plastic have?

  What is the charge on 1 kg of p;nrj)a8 pg (wpi0y7n)sc y0(o pwk c:protons?

  An atomic nucleus has a ch hpfbiu 2r9qt50gv7q +arge 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 valuetu 5ad1a4rn 0us of 2.0 and -4.0 mC, respectively. What is the magnitrnu0utad145 aude of the electric force between them?

  A 1.0-C charge is 15 m fr)fmy +yh,q+u7g 2nufoom a second charge, and the force between them is 1.0 N. What is the magnitude of the secondg2ofhmq fu,7n +uy y)+ charge?

  Two 1.0-C charges have a force between them of 1.0 N. Ho1zxk:d2 2z*g me pkr(tc4 c0,t) geqomw far apart are they?

  The force between a aw6f 637hq xal8 qqgiw/ k/sw4$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienceqpb ,vp,feg,9; *-ix4vk chxb a 1.0-N force. If they are moved to fpiqv,*b 9bg,e,phk;4x - cxva new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed ou*bfs- 9y/zoa5ucd padc+e-3yn p .g*n the x-axis. The first charge is zsoc5*upeaf+gauc.-p ynb39* /d-dy 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 acts on the charge at the origin?

  Three point charges are placed on the x-a*ow3ubhk972bf(q 8,vuibmn8aue g.ixis. A charge of +2.0 mC is placed at the origin, -2.0 m q be a9wu uo .v3i8fm,kn*(bu7bgi 28hC 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 the origin?

  Three point charges are l;d1+ x+ jhfmauk.0 dek4l uks yr5 /i-(:eriwtocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 rdy5femwh t1+s- ukx/0i .( iur+e:lk ka;d4jmC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is plak cr ;zbz tu4 cvqg/1r6,n83ewced at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic forc k ebzuc;t r1/g34zqc,w68r nve 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 ain9ws0 a7s 46-ikge cr sjpy.0t (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5k.w -gra0ij40p esins 7c6ys9 .0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nbwkylc8 ;r((l( 88g adv1: xps db+ulgC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the p( 8( r1 ul g8wak(sgddbc8;+l:lyx bv5.0 nC charge?

  Three identical char +b3qi66zp+4ebcemc ( yhds7gges of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude o+ci3 7zygbq bsm4+dep6ce6h (f the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, wh c2ts+ t+ pctp ks/,2q6oorpw:ich are separated by 3.0 m. At what point, on a line betwe+p/os tcqo p wkt:2ts62+r c,pen 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 and aozvn :)pu,pafjs+2*n +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third cha,p* zvp: osn n+fu2)jarge 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. Where chd+8 xuxmo*f57hmin,an a third positive charge +q be placed so that the force on it is zero?,muxh7 n8f5+mxho *id

  A copper penny has a mass of 3.0 g. A total odt;+(xahb0 tq pm9t k7f $4.0 \times 10^{12} \; electrons$ 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 againz .:utj4z vuq/st the force of gravity by the attraction of a fixed pr:zuuq jvt. 4/zoton 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 noncot)- + 0yo+c oylxxp, rc;-xuojnducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle b; +j,xo0xoy+o) -cctxl rpu-y etween the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge8y4ece ; lb:ab of +40e. What is the magnitude of the electric field aab4l e:cy8 ;bet a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field a ,e+jbkpmh16zvz / 1(xi7byiat a distance of 1.50 m from a 50.0-nC chargexa1khp7e(/ m zvb6ib,y+i1 jz?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitiei5 z yhmrja1d+,4u2ude of the electric field at the h5 ae 2zri,14mu+iy jdlocation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of theboth* p /61cmw e*o16 hptmbc/w lectric field?

  A 5.0-C charge is 10 m from a small test chaitue+ 2uq-6jh rge. What is the magnitude of the force experi2uhu i6qe+-j tenced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value o3ya4k1 x .b;p 7ymfk2rybp 5lqf 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a poinxpp 1m7bkyal4 3y.yfq2 ;brk5t midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and esl l2 **hn7;u/g (i*eowmos ja -4.0 mC charge is placed at the 50 cm mar sj7 (*2oloe eg/lmi *usnw*h;k. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mete gs 4zq(vkckz1i 83)g*wl4 wver stick and a -4.0 mC charge is placed at the 504ws)v wk8g4c1gvl zqi k z(3*e 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 at x,l0iohd 1bx5o jf(m x/ = 0 and x = 0.20 m. What is the magnitude of the electric field at the l /oxj 51m,( 0fixbdohpoint midway between them?

  Three 3.0 mC charges are at the threei 0h.i6igmi/t.bfw 2nx-e/ qkuos28 vb j5dp* corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electxu*bf niihtig2m6 d bpo/v s.e.jw0 2k8 i-/5qric field at the center of the square.

  Consider a square which is t5tippbw2c, ydgy8k jmr8a,/ 0/of;y 1.0 m on 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 magnitude of the electric field at the square's centm;cdk/a,toyy tr/ i82yg5 pjbw , 08pfer?

  A force of 10 N acts on a c lf yvwa6:3ta5harge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electra :5watvl3f y6ic field?

  A particle with a chargkk ws/o.yqh71m5ivd 6uo :as0e of 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/C pf-5kul3 eze1cointing downward. What charge must be placed on the ball for it to be 5 fecu- elk3z1suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 t3wc:oz).i lo nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are o: .3oi w)tczlthe magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. )y r-te r:9-pur)q 0bol tguvdf)n9e p c(js*5 What is the magnitude of the electric field 5.0 cm from the sl (p5)rr*9gp t yef0jcn u u:sr)d9- bt-eqov)phere's surface?

  A metal sphere of radius 2.0e- 23rj y 1*ta i2zjoaqlktx- 2ugfs2/ cm carries a charge of 3.0 mC. What is the electric field 6.0 oga yza3 2i*2xt- r f tjeqsu2lj-k/21cm from the center of the sphere?