State the law of conservation of elec5hq(;ju)h ig ,as 4wr2s7jpfi.w m-g ftric charge.

  Is it possible for two ner v) ruaegm 10u:yg vs+jv06 ni,f-q4wgative charges to attract each other?

  Is it possible for a positive and a nega 9j;ytmynx2vxq7dk: : tive charge to attract each other?

  A glass rod is rubbed withp )qy ik6t2ld1 a piece of silk. During the process the glass rod acquires a positive charge and the 1l)qtpdyk26 isilk

  A proton carries a

  The model of the atom showz7e :bru0w -s 7;n: aq 3.wrmsc9zytccs a

  A neutral atom always 47z *h c6f,,jfb)-uodamzl9 euocnh 8has

  An atom has more electrons raj2e) b9 h8uqthan protons. The atom is

  Materials in which the elec -u+xrn(a9 1-heibivgtrons are bound very tightly to the nuclei are referred to as xb ern-9(ugv-i1 +aih

  Materials in which the electrons are bound very loosely to th3-4:a3yk t.pcbgax ut e nuclei and can move about freely wapg-x k:b a 3ct3.t4uyithin the material are referred to as

  A negatively charged rod is brought near one end of an uncharged m hesknyve,xd5vz 8/-zhik55 .f l(s; metal bar. The end of the metal bar farthest fro 5hs.ske, meizy /z(v l5-5;8fknxvhdm the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutralgbxqefm)t7a mhz7/ :2 . They are placed near each other on an insulated table. Sphere B is briefly touched with a wire th) h:aqg7 f 2em7xmbz/tat is grounded. Which statement is correct?

  How can a negatively charged rod charge an electro(lsa.hqs i */b-4u yyuscope positively?

  An originally neutral electroscope is briefly touched with a positive:lv1tonacb+7 2)i/zdw ew wk3ly charged glass rod. The electroscovtd/ +kl3o7 2wni)weab:zw c1 pe

  An originally neutral electroscope is grounded briefly while a qa4x6dq2o *cyi0 t+ame4*vefpositively charged glass rod mvtq0i xa fcoqd a*62e *+ye44is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neus 9biwb/ 03oqttral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but doeb 0t9s/3 oqwbis not touch it. What happens to the leaves?

  A large negatively charged object is placed on an vnlql/9emfvc/ oh9 )cjw7*k* 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.loe hvw *jq*/ l k799cvncm/f) 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 constant emn0 k u9bby1. u6serdst9qt)o94(ud$k$, which appears in Coulomb's law?

  Two charged objects are separated by a dislu 5vl a. 2zhpvv0c)3du0qz6h tance d. The first charge is larger in magnitude than tp )d 32qu0lh h.avu50v zvcl6zhe second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed nea t hcbxvll bp)nbxm5vd-,626,6q2he .vqw:kb r each other on an insulated table. Which statement best describes the electrostaebq v, b.)- vcpxl6d xhw,qm lbn2662 :bvkt5htic force between them?

  Two charged objects attract each other wifc g;.1 3rbnb,qu(ul ath a certain force. If the charges on both objects are doubled with no change in separation, the force betla(.n 1 ub3bqfu; c,grween them

  Two charges are separated by a distacp4- vs dtv:az:bz j-1kww7 1ince d and exert mutual attractive forces of F on each other. 1:czwtd-asijpb4 1z7v: w v- kIf the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each zjv9s4rbx:4hi).wpm tlxv, s sed 3 -0other with a force F. What happens to the force between them if one charge is doubled, the other charge v4r0 9p .vd sjlzxw-est)4x b3ish:m, 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 separated by a distance of 1.0 m. What happens rb(9kf k*vghoy)5 3:mg d)uryto the magnitude of the force on the proton iyv3gdk:h m9f*rbkg5or y)()u f a second electron is placed next to the first electron?

  An electron and a proto wpf5d3q3lg0 i cq:oz5n are separated by a distance of 1.0 m. What happens to the magnitude o30fwgiz c:5ol 5 p3dqqf the 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 oz;; cos3(v)cj qpv2mixyrk (n,ec*7 l f 1.0 m. What happens to the sizccv,s r co;nxez3v2(7yj( q* )mli; pke 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.hh5*6em1;f ,hoit tbdt 4 4izl 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 chargt,t44 ei 6b*1i5l; fhzohthd me 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 tdqk)c51t x22 ku/fmso7)0xzn jsa3 hplaced at the centroid 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 placed at one of the other vertice2f)d mts 03kqtjs z2akxo5u7c 1xn/)hs?

  Which of the following is not a vector?713sdb.bi)i9( x yd2 lgoh obc1 obij7

  At twice the distance from a point charge, the strength of the electric fj y )wab3zk8(yk9ki t3ield

  Is it possible to have a zero electric field val quyi)v2o /d: :vba7rpue between a negative and positive charge along the line joining the twoa/do 2 :yqbpvviru ):7 charges?

  Is it possible to have a zero electric field value betwed2qbh+zi d acl2** ri2en two positive charges along the line joining the two 2 zi2+2dr* b aiqhlcd*charges?

  Electric field lines near (9czhg ixw4oo-fsyd9- 5ao 6 rpsitive point charges

  The electric field shocxw-/e( c-yiiqn g2k-d,fx(pwn

  Can electric field lines intersect in free srl l9h3h;.l7uylzw v 4 )tw3wxpace?

  A solid block of metal in electrostatic eq1b5/ psu mw98svpr7 5*h wa)6jqwcg ptuilibrium is placed in a uniform electric field. Give a statement concerning the epp8 t5h q)w 6swpmsr*1g7/9 c5uwbjvalectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are e n fkz( e5.hxg6mze61o6dic:lpjs1u-ach given the same ch zefmzke.gl6n(65h dspcj61ou1x :i-arge, the electric field (E) midway between the center and the surface is

  A cubic block of aluv; wy:.dxxk1 iminum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surf.vyxx ;w1k i:dace?

  If a conductor is ind09*q qaxoq8c electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a how2yg or(nfsi )yz .,s(llow metallic sphere that is grounded. As compared to the case without the hollow sphere, the elect2,zw. rg(syn)f( oi syric field at a point directly above the hollow sphere has

State three properties of conduct 5un/c8vj zeq:f*wp qz-ug- m6ors in static equilibrium.

State Gauss's law.

  The charge carried by z1jc e0fvah1vwb -6b1 8c*jgy one 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 hask3 un+fyxukt x;5lusb/v -vu9,8 b muh3ca)h7 a net charge of +2.00 mC. How many more protons than electrons does this piece of plb85 u,3ulu9fh;3kmvbuvu 7-h y/xks )c+n txaastic have?

  What is the charge on 1 kg of protonj 2cuvf,)4et us?

  An atomic nucleus has a chargpzo kn(joc) 8* d:j9ise of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.)k- sm */gk *bd4coozvyr,(dbi +xb)h 5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude+shv/* ci gkby-)b)mz4bdxr*,d(oo k of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forc,bgjb+k i(;zm,awjv 2e between them is 1.0 N. What is the magnitude of the second charge ka+zimbg2,jvb ,( jw;?

  Two 1.0-C charges have a force between them 0lwm0r7zymqd+a n ,7zof 1.0 N. How far apart are they?

  The force between a g)vx;)i gi snez;d1; z$30 \; mC$ 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 fzl u;6m3a6bii 0hbhz phz35 7u.csd;torce. If they are moved to a new separation of 8.0 cm, what is the electric f7h zt z6h;l .b36 dcuz53i0saph;bmiuorce between them?

  Three identical point charges of 2.0 mC are placed on) ()ru6 ix ndthqg.)sp2kqd;j xl7q5y the x-axis. The first charge u)xdsy6 ) .)p(qj qkt;q rh2g57iln dxis 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-axis. A charge of +2.0 mC i)r+:)klfqd:j90gp qtt0bu dms placed at the origin, -0 tpq +f: mq uk):9jdb)drgl0t2.0 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 a: ox p+g8iq(f +7bnqyh) cu2vcre located at the following 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 ty vf + p7qg(xhb:uoc)qnic+ 28he 3.00-mC charge?

  A point charge of +Q is placed at the ces99fil2rm* /un y j+lbnter 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 l2j+r9msn*/f lbyi 9u 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, 0.1rqynqp ( 1v7)h0 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on thqq)7vy r(nph1 e 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 =f ;+iqr vuo: y+jcls) -8zgxo1 -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge? sog8)y jq:+uczfx-+ r 1;lvoi

  Three identical charges ofg g/)/nfsj yo mb1(ce )xyu./mbk ;ti/ 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a )b/.1yeo /fgjsc/ mxn t(ymi;)/kbguside. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which ar 4dahu zgxomp8p :+2-te separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic fo-+o xmap duptz:482gh rce acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.os/ 7q ijet3 s1(j1ozg0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed /eijg( 13s 1q7j sooztso the net force on it is zero?

  Charge +2q is placed at the origin and charge )ys 3hek0)h2 l06xnp4or lcco-q is placed at x = 2a. Where can a third positive charge +q be placed so that t4o6e2h x)30s hll c0c k)nopyrhe force on it is zero?

  A copper penny has a mass ode5f 5c)i,v,, ym97sih uixcxinr8f0+t y)m nf 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 grase3 : q(gn cein5ev3j0vity by the attraction of a fixed proton some distance above it. How far above thev qjig03: e53c(nn ese electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nos:q e: 3 q6oyjpwqv7.inconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the tw 7qqqjs p .y::o3eiv6hreads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnitude .msnob 6fk0ave+h8.j of the electric field at a distance ofkem j sf 6b8oavnh.0+. 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field g* v o.xa2s;b seiet46at a distance of 1.50 m from a ;xt4vs seiobge *a2.650.0-nC charge?

  A 5.0-C charge is 10 m from 0q 9+yvs gjxu if-t:(ja small test charge. What is the magnitude of the electric field at the locati9qf x:y vtgs-j+ i0ju(on of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction *3a1qzbvqs18i 2c7op t2qc (a mlsvp7of the el2oca mqcsaq172pb 1vlz38 (sp q*7i tvectric field?

  A 5.0-C charge is 10 m from a small test charge. What k- m: d8sc;bt1cswrn-is the magnitude of the force experienced by a 1.0 nC charge-br-d1wsc8m ;snkt:c placed at the location of the test charge?

  Two point charges each havelpwkj+x, j8 u d(mj57csfo ;:e-sgz+q a value of 3.0 C and are separated by a distance of m zfje( jcx:qso;pk78-+jl 5g+uwsd, 4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed atco/i 3hi1hls3wwmaf a 2nlyrr(pl6gv,,c7 1 / the 0 cm mark of a meter stick and a -4.0 mC charge is placfal,/w,y7 l(s 1warcpvrion23 / hlmg1c3 ih 6ed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is pla;qsp: 5pz/tu/niy qy- ced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the pq5t/u :y;piqn /-ysz50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of sy5; df8eq-2y.djpt dtw3/ aq+3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the/qdy; f5 d2q8ate-3 wdty.ps j point midway between them?

  Three 3.0 mC charges are at the three corners ofh clf5q -hzv6e)ky1m , a square of side 0.50 m. The last corner is occupied zh 5 1 k6)fhcmveyq,-lby a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0n-dfth u+:u.j 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 e+fudnjh-. :tulectric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC w8ae 5lxol k*-when it is placed in a uniform electric field. What is the lwaoe-x5l8 k*magnitude of this electric field?

  A particle with a charlx9/z k6x1wu ege 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 electrmceu r+l/+(vmbu . ncvo3r(u -ic field of 6000 N/C pointing downward. What ch+l.ue b(/ r( -mvocuvmrn+3c uarge 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 nC. The ball l6 20fx- ulrrzwc8t9h n).jjkis placed inr98w)- c ltzjk.u0jr2ln xfh 6side a uniform 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 chl3,grm7 q; ,d2t jtkjrarge of +2.0 mC. What is the magnitude of m ,2rjgl,kdrj;3 7tqtthe electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is t ib x38df7hyw *l+ae bk+kicfcb41+u0he electric field 6.0 a0+1fy cibkdc7xbkfb4+i*eu h+38l w cm from the center of the sphere?