State the law of conservation of electric cykm ( .m4s*gq m 3:s ior1cdso(88nwjxharge.

  Is it possible for two negati+6 dmcmc- hd2hve charges to attract each other?

  Is it possible for a positive and a negative charge to attradr* iue:cz9soyodnb w0 2:e 4(ct each other?

  A glass rod is rubbed with a piia (e1z9s0y7hvn6yk gece of silk. During the process the glass rod acquiresykgnhy7 zas9v( 01e6 i a positive charge and the silk

  A proton carries a

  The model of the atom shows afml7-ezr uo*ko1 t5w/

  A neutral atom always has5z7 ag:az(xwx l* krb h.fn/)1- mzbth

  An atom has more electrons than protons. The0tu iqq5)q aahe5 9t5n atom is

  Materials in which the electrons are bound ,in/u eb wczgv4--c13 omcq9rvery tightly to the nuclei are referred ,c zu/3-bn9o iecrqc1vg-m w4to as

  Materials in which the electrons are bound very loosely to the *a raxr m0m*u0tr a4)r;qyo3+/i cxhanuclei and can move about freely within the material are r qm+ar0a*ort )x u/ a m3arr4;ix*0cyheferred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. Tws)7avx t5vjw* ow q5.qh6/as he end of the o*asv .7qatj5swhwq 5/v) 6xwmetal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral.i b0u;7y;kq xg They are placed near each other on an insulated table. Spher0;u7iqk byg ;xe B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electr*cq+qnx9a ; kmoscope positively?

  An originally neutral electroscope is briefly touched witti8rtu 2 q dbl ;9tuwh0p2w7xje3n)chwve4-8h a positively charged gw8 7u 2vwt4 l8x9tnd0urb)w t3h e;2i-ejpqh class rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positm qwl 7e-(d9mvively charged glass rod is held near it. After the glasdq9 (lm7 wv-mes rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leam:b 2:e ju2g9ill7-ubpry- to ves separate. Then a negative object is brought near the electroscope, but:blrb: 9-y2gu 7-oj eui2 ltpm does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tabl.g tfll1 br hzv0+y-8ve. 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. hy0 81v-g.t +zrl bvfl What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb consta/kigrt s(m. jkv9a *)ynt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first )7c2 hevz;tz bee. /e7txrre* charge is larger in eezzt)* 772veh/etbrerx.;c magnitude than the second charge.

  Sphere A carries a net charge and sphere3ta9 4gsd2 wok B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrosw49tgo s3d2k atatic force between them?

  Two charged objects attract each othemy tzb:- expdev)h20 7r with a certain force. If the charges on both obje2pzb7 v)mt: xy-0eedhcts are doubled with no change in separation, the force between them

  Two charges are separated by a dimbp t :xxm)40nstance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forb0 nx mp):x4mtces?

  Two charged objects attract eacdj+e.wx *t2 i) del-mih other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers isd*-m)i dtej l xi2w.e+ 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 m. Whai.cpe g,(kl s2r zo,uy cw.2v fex:(l:t happens to the magnitude of the force on the proton if a second electron is placed next to the firscpyle2:x. (i :,gwurlsv fzk(oe ,c2 .t electron?

  An electron and a proton are separated by a distance of 1.0 m. What happxp 7or0 pg3.84k yw vkrwxoc30l7gho,ens to the magnitude of the force on the first electron if a second electron is placed next to the proton 3p w r73ogo0 4wovplckx7 kghyx,r80.?

  An electron and a proton are separatp*/d:pedy/x: ,tg etped by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer toep,gtt/:/ d ye pd*xp: the proton?

  A point charge of +Q is placed at the center of a square. Wr : n1qqn 1a 2ybl)m12nq.jbyvhen 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 th)b ly2q.yvrnb mnaj 1nq1 q2:1ree 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 ofhk.s )*kbq9r m an equilateral triangle. When ahbk qr *s).9km 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 placed at one of the other vertices?

  Which of the following is not a vectoyej. +4p1*llmn n rdi7r?

  At twice the distancnmo0c 7z4tw(v d6ts4. xja2ove from a point charge, the strength of the electric field

  Is it possible to have a zero electribnjnu 37ev xgn2 :lw8(rji a/1c field value between a negative and positive charge along the line joining theen2lj3 78/x (ugi1nnarb v:wj two charges?

  Is it possible to have a zero electric v ql* if2 y)f58q:zbuxrgl62ifield value between two positive charges along the line joining the two fx8ql2 )z*v6l rygui2f:5 biqcharges?

  Electric field lines near psitjq/upu rqz u2o vi 7l/.m:(z0oive point charges

  The electric field shoy8cedl)5c)2.t9tlw sh ju,aj wn

  Can electric field lines intersect in freejk4ij.fby64y)ix l nc6hl1. ww6fl q3 space?

  A solid block of metal in electrostatic equilibrium is placed in a uni,as 0d yw f+9pb:pvyx7form electric field. Give a statemb7p v9wy,dpsyx0f:+a ent concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal spheh8o dxntb*0ih f p656ire of equal diameters are each given the same charge, the electri0*dth f8 i bixo6p56hnc field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regi/o oer/v9 v)ztc9k/odfu2h j4on where a uniform electric field is directed straight upward. What can be said concerning the charge on the blov/9ev t rfo 2cku4hj/d/9z)o ock's top surface?

  If a conductor is in electrostatic equilibrium near an electric cha, xq;jv dfus/7rge

  A positive point chah*pm;(a/8xs)k6 z8xkyyfr6 fb avfh rwut;(+rge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, t 8 ; /8t r;x6f+w6)aps(hvf rbx*mhfky(uay zkhe electric field at a point directly above the hollow sphere has

State three properties of conductors in static v;wxcdwn g19 .7,0imeifcb5 zequilibrium.

State Gauss's law.

  The charge carried by o/wh7,tr kexo st4fi (5ne 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 prot7j b/./v vkdjdons than electrons does this piece of plast j7/.k jbdvvd/ic have?

  What is the charge on 1 kg of protot;okv8u gb0gg.j4 dynm8)7 qcns?

  An atomic nucleus has alr:kj5 xv .7nn 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 vala,2elqrzb1v/ wwgm6il* c2y:ues of 2.0 and -4.0 mC, respectively. What is the magnitud /c6w1wib q r mlea*g22lvzy,:e of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the f8ix 17jy7t nw vz(iy+z dij:6qorce between them is 1.0 N. What is the magnitude of the second chii w+7q6z(:ji78nyvy xd j1t zarge?

  Two 1.0-C charges have a force between them of 1.0 N. Heyiw5irtas 9,; gb*iv; u ll/;ow far apart are they?

  The force between a 8nny::m/ z thj$30 \; mC$ 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-rh fw:ot mn5qsrvj;.qc +7oo 4-ix 0+uN force. If they are moved to a new separation of 8.0 cm, wha4o :5v++x o7qt isjofm-wh ;r.unc0rqt is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first f6l, wl:od7j,7urp+t nn e)m lcharge is at the p,7wn l +rutlfd6neo ,:mj7)lorigin, 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. A charge of +2.0 mC is pla -siwl/ngf 4e2ced at the origin,i wlsfgn2/-4e -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 the origin?

  Three point charges are located at the following positix3wg:x;o56 lkk :o n5e1kw dtqons: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = 5ewk o:qtx 6x3k; 1d o:5lnwgk-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 of a square, and a secm,s kb n dh.+ zby8vaayay.+99ond 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 +yvabm s9,8an zad 9.y yk+.bhacts 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 at (0, 0.10 m); Q3 = 5.0 39yjy* jzkp7f 1 ojoo:nC is at (0, 0). What o yop*1 yj9zjj3: o7kfis the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0t7utj8,-nzw e .30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). ,8eu-tjtwzn 7 What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plac4 / c;2nrg6rzgorb.l xed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic6; 2brgrgzc./rno x4 l force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are ddqx-+r9n i0f,ob zq9l3kz9aseparated by 3.0 m. At what point, on a line between the two charges, would it be possible to+aloz df9 q,39zr -qd9kin0xb 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*pq 0g nbwde*6 charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net fo 0begd*pqn6* wrce on it is zero?

  Charge +2q is placed at the origin and charge -q is plgdz/*;lwq,.cy lr ,2fsq2wwcie v1k) aced at x = 2a. Where can a third positive charge +q be placedww).c/s rl;dqce 1y vi*lgw ,qzk,2f 2 so that the force on it is zero?

  A copper penny has a mass 3w1/* qal4ud octg.brof 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 attractioxdy25 f msc)mis8pta39* 2jwd n of a fixed proton some distance above *at58 j3xs ms cpd)29dfw2miy it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductixsa+*.; nqrtl )/cielng threads which are 30 cm long. Both are given identical charges.r/)x qti+n*l; acels , 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 charge of +40e. What is the magnitudgn-f.kzmg,n. 5j fg t.+: krntqv1gc 1e of the electric field at a din q gkcj.ftg1z.-:n n5r vtfk. gmg1,+stance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 24 o3zvd;7uh eiros:j1.50 m fr7u4o2eovdh : jz ;is3rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude8,a:k (p yboye of the electricp:k e,8a b(yyo field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the d33 w:dzbouug+rle b rva2989jirection of the elecdvg u329jzr+l :a 39rbou8 bewtric field?

  A 5.0-C charge is 10 m from a small tes83rbhg owd,igf9* lz6 t charge. What is the magnitude of the force experbd*r3f goig,h68w 9 zlienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each h;kk5z y;okq 2qa f0mm3ave a value of 3.0 C and are separated by a distance of 4.0 m. Wh3zoyqf 52m k;q0mk ;kaat is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mf*i smb m q-nl8q::sg.ark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric g nbqs-mfs8m l:*.:iqfield at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark a,2. t hxey lers7+ap+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 charges is the electri2a.lp7 t++ exea,hrsy c field zero?

  Two point charges of +3.0 mC anl4/+0 weof1k fk r5bj;nroy-wd -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the 0wk1kjrre f 5ob ;f-n4 /ylw+oelectric field at the point midway between them?

  Three 3.0 mC charges are atxne13h,3 yvw9.x nkik6tg jne9x9se * the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center o9*ewsn . jh9n6n3v9xi 3gk1yk eet,x xf the square.

  Consider a square which is 1.0 m on a side. Charges arngh+:pmiw eseam4h z52.i;zxl2- ) s te placed at the corners of the square as follows: +4.0 mC .i5hle 4es n h;z-w:)+2ximtpz ag sm2at (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 center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform elect fz(g/jlu4 h(fuxk p a;--pz a,ny:eu/ric field. What is the magnitude of this el;(j afxnlu gfz- u k- h,(e4/apy:zp/uectric field?

  A particle with a chz8 rm6qlt 5rr0arge 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 in3 9kds yz(ic/m.m7 cl7pd hk;v an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?;7mpzyk7h c 3l/m.kd9d sv(ic

  A foam ball of mass 0.150 g )r9-dbfv hok/carries a charge of -2.00 nC. The ball is placed inside a uniform electric fielo9v r)dkfh -b/d, 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 caravsvu5m9 0ufi/g;f z6 ries a charge of +2.0 mC. What is the magnitude of the electric ;09vf s5uuzfv g/ m6iafield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What k0clhnujl pz7v rwb87(03i k4 is the electric field 6.0 07c4w7jukh kivrblnz p80l (3cm from the center of the sphere?