State the law of conservation of eurm:tjw(v3 du-f2jv ; qdmqm36p.n l (lectric charge.

  Is it possible for two negative ch p(i4r71wri yharges to attract each other?

  Is it possible for asrj4jmf8 5 jp7yosp2gp 9;sk 3 positive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the- r3- f9ycvjif:*s ((ytdl bdh glass rod acquire(cyjf-d l *h9vs y:bd-3 rif(ts a positive charge and the silk

  A proton carries a

  The model of the atom show ba q m/nduy.2v6,imf2-sx;bxs a

  A neutral atom alwayetvgmgdf ak.5,9 n+l9s has

  An atom has more electrons that5 xpe.f,hymv0 o.h4 vn protons. The atom is

  Materials in which tdk0m9x.t6br ro yoq4.he electrons are bound very tightly to the nuclei are referred y x94q rt6o mo..b0drkto as

  Materials in which the electrons are bound very loosely to the nuclei anf*pzw2f:sel5 /up8je8pyjw 8 d can move abopj2 e uw *8eysj f:/w5f8pzpl8ut freely within the material are referred to as

  A negatively charged rod is brought near ojkrhwcggrs6 3(6s-cukkh v-vf -(9g8ne end of an uncharged metal bar. The ev6-rus-86 9jg (c3fksh kggw (ch v-krnd of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plmlj,0, wo/yohn a:4 do:ox-kmaced near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which stk0oa m:/ -d yonolmx4h ,jw,:oatement is correct?

  How can a negatively charged rod char no; e1p te7ri4saolqz 7/v:m415f woyge an electroscope positively?

  An originally neutral electroscope is briefly touched wi3pqgrxpxm x46b a01, q uuor(2th a positively charged glassux qqp023ox6xupb4gr r(1m,a rod. The electroscope

  An originally neutral electroscope is grounded briefly w/d.tgy 96:x c dg/:mdlwt-i ndhile a positively charged glass rod is held near .-t/6d d xwdgcl m tgdin/y9::it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves 6j(77 m dmtartseparate. Then a negative object is brought near the electroscom7j d6tm r(t7ape, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on apm/4qq(jlunx3ua/l g71 gbwb bndq))g(79e 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)(bb/quqb a 7a lx)9e74nw1u /3l(gqpnjgmdg 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 constanf7-6ru,uu yyewhdeo 6) , f8lvt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargeo u(fnaf (ku4ilcqik.j( zhm ,*c:e+ ( is larger in magnitude than the second cho*(acuujienqk4 +zik(c h:.,lf m f(( arge.

  Sphere A carries a net charge and sphere B is neutral. Th u crf ;c:17(3w(p miasmm6cnhey are placed near each other on an insulated table. c p17 hf(;umccsm6an3rm(:wiWhich statement best describes the electrostatic force between them?

  Two charged objects attract each other wi k.gge:lzb:/aj1n8 yxtg 1i)tth a certain force. If the charges on both objects are doubled with no change ie).y l agi:ng tx8b1g/1k:jtzn separation, the force between them

  Two charges are separated by a it9 h ls q4s.)wwz:4d n*jpe8udistance 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 m d)tnqhpzlw4s4esw.9j*i8u : utual forces?

  Two charged objects attract each other with a force F. What happens to the for14xr52 rmd yemce between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reducee m5d1x 4rmy2rd to one-fourth its original value? The force is now equal to

  An electron and a proton are separated boibrxs j y:p7 ga.; hl-kjcl:k1f9-k0y a distance of 1.0 m. What happens to the magni--9lcjixkg ylfo::7r bsp1aj 0k;k .htude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separa- :zcb ph*n8arted by a distance of 1.0 m. What happens to the magnitude of the force onzn8- ah: *bpcr 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 mz;9z:q dq3g tx2;b1q:kbpiwu . What happens to the size of the force on the proton if the electron qqzg: t;:2k3zb bix 19;dqupwis moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a sqonw0u5oufv5w5rv sc :;lw),gwzk u:3+nhe* uuare. 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. What is the magnitl5o5 vo srw5 fwun0k)u:c*v; uw3:+n,ezu whgude 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 5f3ta y;g a zr7ltyq-2an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N actsa;f3-gylzt rqa5 t2 y7 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+ntote.,q)rrk6sh 4 pye++l f vector?

  At twice the distance from a point charz p0 at6ml).i7fhcw) rge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and 6+pd ef j )5or8fv ,pdo6)aovxpositive charge along the line joining the 6,dfoj8xpep orvo)da + 5 v)6ftwo charges?

  Is it possible to have a zero electric field value between two po*m0d cci, gb:rsitive charges r0cdb:, gcmi* along the line joining the two charges?

  Electric field lines near psitive point charg/pc :ybr tb,(r))8 ind1qrglxes

  The electric field shown :f 2; 3zua:4rubxyq;kju- jo m

  Can electric field lines intern: ld sbl.2 o2z b:ythxg-+k,lsect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ele :uxn7g0xh uk4ctric field. Give a statement concerningx7uk 04n: gxhu the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each gp )cba75s vc98ziaem)iven the same charge, the electric field (E) midway betwe8 ic9pa v) mza5be)sc7en the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifo oylk9o,b;2 z01jkl ,3kv ssdqrm electric field is directed straight upward. What can be said concerning the charge on the block's top surface?31olk ds,ls0 2 obvykjz ,9qk;

  If a conductor is inhdkis v9h4 ;2e electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is i8nv9j *- hx8o hku,-yant98 rvg-9(tvl fumx grounded. As compared to the case without the hollow sphere, the electric field at a point diovk ,v-98(uf- ji8*na8urn - ghylxt9 vhmxt9rectly above the hollow sphere has

State three properties of 8eb2mf3 ,la4vzxvndqp-s (87ui/c mc conductors in static equilibrium.

State Gauss's law.

  The charge carried by one ele6:e1, ur ktuizctron 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 chargtmb; zmeab ; 36+ 93ovkymzqf41mnj8ve of +2.00 mC. How many more protons than electrons does this piecea 4kfmony9e 3+ tqm;3mzb8vz1 6b;v mj of plastic have?

  What is the charge on 1 kg of prot tjbqd3,5 z cpu my9r2sgo-6y0ons?

  An atomic nucleus has a /k;xji0;he t dcharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated 6)sc 3;jb qltahp14bgehw,b)by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What ,bspehtg 3w1;jhb6 ac lb) q4)is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge,*wkxwuz 6j+p 8s6bu2f and the force between them is 1.0 N. What is the magnitudefk 8+6bww uzxp s*u2j6 of the second charge?

  Two 1.0-C charges have a force between them of 1 vn)sio:yc l:-.0 N. How far apart are they?

  The force between a ar4p* y 5o.mnf (;tmb:vwd9sl$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, ej zrp,wjs ,i 2rb,+2qkjezk7b-o -a1r4qv5ih xperience a 1.0-N force. If they are q+zj 2h e2,kz1-5 rjki,va s-p b,rroi7q4bjwmoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first chammqj: 1 bw8r:x8oipx;rge is at mi;wxm j 81ro x8b:p:qthe 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. Al2haf/n77 qoi(6s:dq; v u xgr charge of +2.0 mC is placed at tu s rhqn76ga7o/f(v2;dqxl i:he 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 which acts on the charge at the origin?

  Three point charges are located at thejry 9m+ d6/e.hgtlq9n 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 o6/hljtn9.rd 9gy+eqmn the 3.00-mC charge?

  A point charge of +Q is placed at the center xz/e3 b7jkfyzabt; +(,wua )cof 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. 3axkb7;),f /zbcj +tzu ( ayweWhat 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 at (0, 0.10 m); Q3 = 5.tu1 n6cgw5ne9cap1 p7 0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC cha6w np7gce9ptau5c 1n1rge?

  Q1 = 6.0 nC is at (0.30 g(r(;udq)pwm m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dir)qm (gr;dwp (uection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC area:ghf)/zd7fqql 4q, qrsz2b) placed at the vertices of an equilateral tria)rqfa b,sz2/q :lqdq7)f 4g zhngle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges 0 fo*(lvnk-ogof +Q and +4Q, which are 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 force acting on it would bl(*0oo -nfvg ke zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0g8nm7 ooh.yr-75yq*n zaqqb 6gk3n-j m. Where on the x-axis can a third charge be placed so the net forck8-nj*5 36-n yoqnqaqzroy7mh g gb.7e on it is zero?

  Charge +2q is placed at the origin and charge -q is pu* 0f)rau ;,prktqm4m laced at x = 2a. Where can a third positive charge +q frqap,rt m04k) *u;mu be placed so that the force on it is zero?

  A copper penny has a masscefc2px 3m f 8,0yaod9 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 against tyab+s.yq 37t )9o;zw 0hsu pfohe force of gravity by the attraction of a fixed proton some distansbzo9tw+y.)73psua oyf 0;hqce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threa-p7x4omcdk v1 ds which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between tpk 147v d-oxmche threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus haf*w2y- fag r. i.l4vcv gmzkgg4+-y,ds a charge of +40e. What is the magnitude of the electric field at 4fi-lfr,v.a y gdg4k*ggc+- y m.vw z2a distance of 1.0 m from the nucleus?

  What are the magnitude and directiv5tvwf(uz do*/f;t 4 don of the electric field at a distance of 1.50 m from a 4v(zffv/;wt5* odudt 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the vqdf qw-2izcs w0j.97 p /fm.jelectric field at thesm fj 0w 9q-.fi2/d7jv.czqwp location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is th2qu59qpm d 10(nylnqz8:umxk e direction of the electric fim9nny:8z0(mxqdu 5lpu2q 1qk eld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnituqne/d ksv j- +j3kpj:,de of the force experienced by a 1.0 nC charge placed at,qjk sjk3 nv+/jpde: - the location of the test charge?

  Two point charges each have a value oyo2b t29mpgy, i*e *lpf 3.0 C and are separated by a distance of 4.0 m. ol*i ,* 92y2bytmpgpeWhat is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed af4ym;p *sf h0k1uwieqwc (t84 t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is i4(cukt* 4 wpe0wh8 syf1fq ;mthe electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm 13vuj: fpy7we 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 charges is the electri: jvype 31u7wfc field zero?

  Two point charges of +3.0 mC and -7.0 mC are p0 gok ,bw50vjrlaced at x = 0 and x = 0.20 m. What is the magnitude of the electric fie 5vwkjrob g00,ld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. 6hfgi lo8smbk 3mb846The last corner is occupied by a -3.0 mC charge. Find th83f68lbm s6mb i gh4koe electric field at the center of the square.

  Consider a square which is 1.0 m on a side. C 4epaoq .5m.- lctknfx(/ g8urharges 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 electrica -.5um(o kgfq.xne/c lt8r4p field at the square's center?

  A force of 10 N acts on a charge ooy bx u*tfyu p8722 vv4l;jzn9f 5.0 mC when it is placed in a uniform electric field;7jb vt428u of92vzlypuyn* x. What is the magnitude of this electric field?

  A particle with a charge of 4. /efy.yr z3. ome/cpj.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 mi0 aka s04)- nwuk0oogass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be-aga0ws0kk i0n) oou 4 placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a *0 gywxu7gho4charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the fo40wgxu* gyo7hrce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a c+ 7-v */t y9bh8mleuqmvanay7harge of +2.0 mC. What is the magnitude of the electric field 5.0 cl7 vhm78 vq*uynmby 9/+a t-aem from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is tg +vhzfymelq1 t4u;sz 6)8 b-w.y -unqhe electric field 6.0 cm from the ceng4n l )+b h1mefwzz-y -uqq 6tu8;v.yster of the sphere?