State the law of conservation of elx9u*osq u ne8xu4mtnic 43u)4p z 7vr,ectric charge.

  Is it possible for two negative charges to a(y sk:orke6 07hptur 6e8evn3ttract each other?

  Is it possible for a posi7oeoll4mfwz*1 *9-ojk k5 s*xq0x psy tive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During tho ldl-q3 *ua5he process the glass rod acquiresaqhd*5ol lu-3 a positive charge and the silk

  A proton carries a

  The model of the atom ghs+)*/dukifi3m(ycm ou ; n -shows a

  A neutral atom always h j6oilrwd0x. a: h aravp5v.gw-hn0 9/as

  An atom has more electrons than q4 k/1sxfulp1 protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are risqm r+-v8ci9eferred9i+mi qv8cs-r to as

  Materials in which the electrons are bound very 7yyk/df lz)6z+n, nx floosely to the nuclei and can move about free) n ff l,/+zzn7ykyx6dly within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged mecn) rzie)c 1r(tal bar. The end of the metal bar)n)rc r(ze1ci farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere Br64w 41huw lqa is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement w4 uhl6aw14qris correct?

  How can a negatively charged rod ch3d232nec z 2awdf 7ac02vl oo ytkre*(arge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positive,z- 9l:fmwsjc. jh8 gh9,sqgply charged -fq9s jhgp,wzs 9g8mc. lh,j: glass rod. The electroscope

  An originally neutral electros xvf14 sc9uf4acope is grounded briefly while a positively charged glass rod is held near it. After the glass rod xsuv 944 a1cffis removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separzxla 0l4xo7)c ate. Then a negative object is brought near the electroscope, but does not touch it. What happens to th zxal4l 7)xco0e leaves?

  A large negatively chjaaha,;js:o cg - lvo on5x1i1*f.zx)arged 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 follo,z51na-o ol. fo aih*j aj:1x)gcx;s vwed 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 consrm.hox+w4-qsw*. yz y 6c *jws,lva)ltant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ir e;w1ai7n67+hz4hi jk3oc(mirjxtfa7,n n5s larger in magnitud+57n7 ; r3r 6wcm4it(fh,o1 zih ejak7njxaine than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed ne3niahh).8 kz.-rlgj uar each o.n) jiglh8hk -a3.ruzther on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects at,s ob62nx)mp9vfro n zl4 ;w6gtract each other with a certain force. If the charges on both objects are doubled with no change in sepa9n6w nb4)xvpmsl6foz go2 r;,ration, the force between them

  Two charges are separated by a distance d and exert mutual attr7pp o)1 ues5la5 v;ybmactive forces of F on each other. If the chargessbpu15ev 5m;a)o 7 pyl are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each ougos jdp 9 2flj+4p4dx 999ptdther with a force F. What happens to the force between jsxj+d9p 9 pto2gpdufl9449 dthem if one charge is doubled, 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 are separated by a distance of 1y-1 nruj;qa0h.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to tyr1 qhja;n0-uhe first electron?

  An electron and a proton are separated by a distance fethipd 4 m)(jp15u q8vzaw)2/)aqldof 1.0 m. What happens to the magnitude of the force on the firz4)au/l1q )ijq8wh a)pft2 ev dd (p5mst electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a dis-193ce tuj6 cphan)gp tance of 1.0 m. What happens to the size of the force on the proton if t u 9ap-tjnh31ce)6pcg he electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squ b b(x/1k.ao1sg5vwfpare. 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 centex(s151pa/obv. bkfw gr. 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 ix g/5,,fv jrjy yk0xf6(x)b oas placed 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 thef (,,a y )y60kxjrx 5fx/jvgbo 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 33q /plafpyf.d s.8xjis not a vector?

  At twice the distance from a point char/ bultr2u1ftue2r++ mge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative acf5ec3niebm 6, ap68w8zom)z2v,vl fnd positive chargewz2vn36 ) p8c 58m6o,ff,miev ca ebzl along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive ogl7 : msxtt)pgx 45;ocharges along the line joining the4px g;oltx7s tm5o: )g two charges?

  Electric field lines near psitivbh5xif4++ w9s) a0 kctat o+ycqmm()tt)d;pa e point charges

  The electric field show86 +y8dw8r6sbmdtdlpsij 34f n

  Can electric field lines intersec-bv37it pk i-sw h a m.46sn.(1qiovtwt in free space?

  A solid block of metal in electrostatic equilibrium is placed inkca v *8;4+h.eazg.fin +qckn a uniform electri h*cne+vki .ackzg qf.;n4+8 ac field. 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 gmjb h grajnqcv4*1 szn9i 34.9iven the samhi.ngc zjr9n34s9v 1ja q4m b*e charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests okedg9cv 8r 32tn 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'v8ctrde3k9g 2 s top surface?

  If a conductor is in electros/ivx;5r38bybb d/n+nl qy*hvtatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundedm0x ( c)1ipbmf. As compared to the case without the hollow sphere, the electric field at a point directly cb( xp1fi )m0mabove the hollow sphere has

State three properties of conductors in static equili p -qiw 43csf6ca6+mfwbrium.

State Gauss's law.

  The charge carried by one electron is05jsl047qw*m3 qvtgeo8c wwx $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of wgzofux:c (b 7x )v5b4hk6r3wb8 *uj ,7gkw jv+2.00 mC. How many more protons than eleckox*b:x( w g7z ujbw)r,7 cg53vwkj486u fhbvtrons does this piece of plastic have?

  What is the charge on 1 kgs6cc0rbu, spo:, l-wsqme 8-o of protons?

  An atomic nucleus haspre1g)zr1;ea: muq +l 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, jrf. rj7r oa/rj:;ur3c f/e j:respectivelj 3e or/.:fr;uj c/rfr j:rja7y. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweeuge0;,y:pch ko:nsm l9 /c ol6n them is 1.0 N. What is the magnitude of thmph 6y :lno ,l;s9:0o /uckcgee second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are lwrxcy z2;4.xpr ,covp,2i i) they?

  The force between a 7)bdu4d *hdl5er ,tww$30 \; mC$ 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 force. If i-n4z1c:1pw(oe17 zvexf *guyap .nfthey are moved to a new separation of 8.0 cm, what is the electr efno1 agzvy: zp n1f4 (i-xp1wc.*7euic force between them?

  Three identical point charges of 2.0o*lon ;i a*-h g 3mus/5uoxvg. mC are placed on the x-axis. The first charge is at the origin, nvo h oo-5au.gms*/3xlgu*;i 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 plaxz / 1kqnnna.ppu:k 9h( 51jziced 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 which15z hp:zk( akjx uq/9pn1inn. acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 26elvk xwj-*rr .k;- uo.00 mC at x = 1.00 m; Q2 = 3.006 k-*ur e.r l;-wojxvk mC 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 placed at the center of a ghm - rtl3vnc/f)ac,9square, and a second point charge of -Q is placed at the upper-left ch t ,)l-fm9cr3gcnav/ orner. 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 -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 =:lt2 +nxcown ;( jvg56tdvc i. -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of th( nv o:dj.+cgtcx6i nlvwt25 ;e net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is aotqw ,28g )pbtw ;,usxt (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Wt,qs2 ux) b;wtgp8ow,hat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an eqiya),x d qim/c50x*e6i)n0ey tp vm;huilateral triangle which measures 30 cm on a side. What is the magnitude of x)0acii* 6xn5/q evmtpmyh;iy)0ed, the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated 1hgdy/epx8eq8 pvda4r80/zph4vojp 4y/ s-fby 3.0 m. At what point, on a line between the two charges, would it be possible to place a chavpp-4s 0hvg4zd8 4rhxdqjp yyepafo/81 8//erge 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 charhm*jm-)l q;*g wohu3oge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net forc) glmw*3q;*ohmju -h oe on it is zero?

  Charge +2q is placed at the origin and charge -q is placeua+iq awj* ---v0hlmrd at x = 2a. Where can a third positive chargei-la-w-q* mj+vh r0au +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total wn-8wan46te.lq h o+y 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 atdp1za( a.l 3/+m,mgmylatg .jtraction of a fixed proton some distance above it. How far above the electron itgy.+( djg l3/amaalm1,. pmzs the proton?

  Two 0.20-g metal spheer u/+3(xgbms9s+gu) 5kg h qures are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle betw b/rqm 59g3u xhggs++u(s)ukeeen the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chargr-,5r/l a0k.p d*u;g xl0i iey5w5 n4qrdeedpe of +40e. What is the magnitude of the electric field at a distance of 1.0 m fromixenr 5;rdew* ll,dy.ep qr0k4 50/p- d5 uaig the nucleus?

  What are the magnitude and direction of the electric field at a distance7s tnx-u 59giy of 1.50 m from a 50.0i 9sn75 tx-ygu-nC charge?

  A 5.0-C charge is 10 m from a smalimxa fp56lbf, 3igp +9rq67ud l test charge. What is the magnitude of the electric field at the locatioia u5pr fixbqgl3+7 m6d, p9f6n of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the pty f-o:v gv 1h5ik jusk3+j:(ele5:o 3yjkv p-:fj v+sg(u 1khitctric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitu*n(fj4 wk, dlexp0a5jde of the force experienced by a 1.0 nC charge placed at the location of the tesj*0wdj pea, k(l5f4xn t charge?

  Two point charges each have a value of 3.0 C an;/:a0 gahjnr sd are separated by a distance of 4.0 m. What isrsag0njh: a/; 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 meter stick and a -4.0 mC dr1bk sw-1r fn1 4clk3charge i 3kb141s1rcfrdw- lnks placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is plac ixn9y 265bioh:t +fuwed at the 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 liwi2 tbfh6n+ 9oy5:i uxne joining the two charges is the electric field zero?

  Two point charges of +3.0 mC angp: o-kn c: l6feh1;ptd -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude;co:pnhp l ft6:- kg1e of the electric field at the point midway between them?

  Three 3.0 mC charges are at the threw le ::zw,o1uoe corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge.o:u wl,zo1:w e Find the electric field at the center of the square.

  Consider a square which is 1.0 m oni t )z* go+wkgfmd (j 70oh-xm9:i4ppc 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 atf *ztp -g4i m wooph+xm i)(:0djg7kc9 (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 unifoqbp/ypz y 5-b;rm electric field. What is y/zy5pbq-pb; the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass of l/j.w8pr/ :9h zp jcey4vyz+x $5.0 \times 10^{-3} \; kg$. 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 600p mjd) s/al+.gj,t 7hat jkqd1i;c; q60 N/C pointing downwar7ad,q t;cqj k.g61jljm/;h )p sdti +ad. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g cilufk+ *tafw)yu 4r4dn3 /bz 2arries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is yaw 4ku)bl2 rfit*fzd /n 3u+4suspended 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 o6 s5;0tc olc2h1jhefmC. What is the magnitude of the electric field 5.0 cm from the spher;1tofcch0j he2 l6os5e's surface?

  A metal sphere of radilq-d7uzhh ,( ka))kbsus 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphdkz 7),qub)a -h (lshkere?