State the law of conservation of electric chary.-aujmu/ru6u y9 ys2ge.

  Is it possible for two negative charges to attrac 2f-v(x 6/t ywd,2jaq g+b7jqcc+etqlt each other?

  Is it possible for a positive and a negative cvg6)lol: o4xynjntj i5 (*ef 9harge to attract each other?

  A glass rod is rubbed (ccirvbse x0mw2 3) 9swith a piece of silk. During the process the glass rod acquires a positir 3cm2 9sesxcbvi0)w( ve charge and the silk

  A proton carries a

  The model of the atom y ts v:c.v(.e 6zyo:ffshows a

  A neutral atom always pi/g r0 rwqrjng6b6.8has

  An atom has more electrons than protons. The atp*6 aw.4rw mrem1b5g rom is

  Materials in which the electrons are bound very tightly to the nuclei are rob5 kqf)j+ . (gnod4qgeferred to a( fnog.kqbojq+ g54d) s

  Materials in which the electrons are bound very loosely to the /oy wqn3s b-a*nuclei and can move -/ysoaqw*3b nabout freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged mq ;ee49;-7zwo+a*5osc wg9 dj qgvdoketal bar. The end of the metal bar fae jdgzq;vao59k9-7qsode *w; c 4w+og rthest from the charged rod will be charged

  Sphere A carries a net positive charge, an5t pf6 ib73:x0jcwl3hkzbwmp s6cs7(d sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whicbi3tszhwc765sl:m wj07 x k 6( fb3ppch statement is correct?

  How can a negatively charged rod charge an electroscope positive07vy-uhl8dx8usrf8m . 7 b bqjly?

  An originally neutral electroscope is briefly touched with a positd jlon-i05p1lb/nbtu7 mfugc 6u:r 27ively charged glass rod. The elecu nb0 u2ptlug1i5j b cd6l7fn:-mro /7troscope

  An originally neutral electros791 za g3*k;ktmt ir o.xd3onxcope is grounded briefly while a positively charged glass rod is held near it. og;ktak9tm3.31 xn* od7z rixAfter the glass rod is removed, the electroscope

  A positive object touches a ne9k+. nsp9i ljxutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not +j99 is .kpxnltouch it. What happens to the leaves?

  A large negatively charged object is placed on an insuuafi)5 5ex+ xelated 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 thee )+eaxf55iu x 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 6 ncjjl qu 7y(,nae;i1Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ai jm7*1 ck7e2, htj0ww unf*his larger in magnitude than the second charge.anckeh uf i*wtj *jw270h1 ,7m

  Sphere A carries a net charge and sphere Bli06ohqsc y3n d36 s ))h3kyad is neutral. They are placed near each qdsc sd6niy oh)36)3al30hy kother on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attfjrxqhyzn /k *58+4 ep/ hpzt6ract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force bethhq+64x pz5/rkfy 8 n*tje pz/ween them

  Two charges are separated by a distance d and exert mutual attractive 7 z-k)fg3kzqcforces of F on each other. If the charges are separated by a distance of d/3zk3 g7z kfq-c), what are the new mutual forces?

  Two charged objects attract each other with a force F. What happamoa ln7wq0 ,7ens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced t oq0ma,7w7nal o one-fourth its original value? The force is now equal to

  An electron and a protd;8f1tij+igf +, i yo5wq51 of)hjxdqon are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a secof)i y5qih;gjojo+fw f18it, d+ 1xdq5 nd electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1. k ns gw3zblt))0epq:6l no,r60 m. What happens to the magnitude of the force on the first electron ifgsq,nw: eltzr)63n6 )kop0l b a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens to p2c/ hvfz(m g1the size of the for(gvmc 2/z1pfhce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is ,x6wi (pz+ okiplaced at the center of a square. 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 magnitude of the net electrostatic force acting on the iw(k6,+opiz x positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle. W9 bx:*geu gnw68xzu1*jzn ilc: gmlfh3/qs 59 hen 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 m:sq99 zj*mgfux l1l:8h*3g gnbze 56icnxu w/agnitude 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 f 70gohbyzdtn y( k37n80d8 kevector?

  At twice the distance fs5a:4;y1anuce eb aov.) vz7crom a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negativa j do2ai8ua97e and positive charge along the line joiau aadi9872jo ning the two charges?

  Is it possible to have a zero electric field value between two positive charges91(6pg6vvbeee28kkhx tch 3f along thet bhk(8xfvg23ve h9ce6 1e6kp line joining the two charges?

  Electric field lines near psitive point 5u 4iwpw1dn:cj4yp cl , l)*.zo7tuuicharges

  The electric field s:zf9uoydq va687j9 nussb 5a 5r v2c6ohown

  Can electric field lines intersect in free space?1jduz9gk*ho5p wcg7q;h 5 +t c

  A solid block of metal in electrostatic equilibc5/j 94agpw dq /tut.qw)p cm(rium is placed in a uniform electric field. Give a statement concerning the elwuwd / 4cmjt9g). pcqta/p(5qectric field in the block's interior.

  If a solid metal sphere anwwa(op aw2xy,-f* 2 6uq ;thwxd a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) miqw(a uap f*tx ;6,2wwhy-2oxwdway between the center and the surface is

  A cubic block of alumi22 hlmw mil+q(num 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 surfallh+mim w2(q2ce?

  If a conductor is in electrostatic equilibr 0ifn ,f0nib oluv0v/4k)kui.ium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere tha.nsk0 dv8l-q( cdpv v2t is grounded. As compared to the case sk0 . v8dqdlcvnv2-p(without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in m hg8ifs80domi:/ :su static equilibrium.

State Gauss's law.

  The charge carried by one electro -w/wlx( w)c4s;fmp +zib- yb arn:o+mn 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 protons than elek h : zb; e8aqs+wpve,hl /hb*e2q8fx(ctrons dl/8h ehqbsxve,b 8e*2z(p; h +qak:fwoes this piece of plastic have?

  What is the charge on y hxs(32hk zst;3yjw4cw7x5 u 1 kg of protons?

  An atomic nucleus has a charz ae:,wxmw2*i: kvj4j s t9r23x dt.nvge 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 value 5sxzty9j3wu0 ,md8fp0v z me,s of 2.0 and -4.0 mC, respectively. What is the magnitude of the 5,8yd 0 m3,tx mj0vefz 9szuwpelectric force between them?

  A 1.0-C charge is 15 m from a second ch 0 5)+jym,pwgq7jsx(qdf-t zsarge, and the force between them is 1.0 N. What is the magnitude oftfwj pj70+gq ssd,zx y)-m5(q the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart vq+;.koo(zaoqcb) :d x3x- jfbw: xmy9 ,:rixare they?

  The force between a p 0m5suwz v h0iaz *m)(ejwh.h w1-prmz;p0x9$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2 u6d46q/r pi jpkj2*qb.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric forcep/ bud j6pi r*j462kqq between them?

  Three identical point charges of 2.0 mC are placed on the x-atf9sqw (ic 3s-7cf9))yglb cj xis. The first charge is 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 wi 9y s)bf)cjcc3t 9(7fqsl-g which acts on the charge at the origin?

  Three point charges are plac. o5l 1m coghvl)ik*no8b .9iqed on the x-axis. A charge of +2.0 mC is placed 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 which acts on the charg1o) b*o8g kivm l9.h5.qoc nile at the origin?

  Three point charges are located at the following positions:ou //owhk xz(c ct8i07a4sg8m Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 /m /o8iz akug(soc80cx7 wt h4mC 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 ao i5bk.xcc(eguw7d k8pq. p;,:u0qhw 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 khq5(wcgqu ck; wp ,o .:ip x078ud.bemagnitude 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,+ s: fiu4g6urhkab 03l 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on thhus4+6u k r fi0g3alb:e 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); ;wt*f1 kaf93g7lx0gaz9lhw yQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0aygtkxw;awf7 0 9z9* gfl hl13). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC a+ vxl-4k;lpwx7 s2qsore placed at the vertices of an equilateral triangle which measures 30 cm on a side. What i+xqsl-7ovp;lx 2s4w ks the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated b;wb- amhh99i doy4sy1.vf0asy 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 ya o bmafdshy09 i.;hvs4w19-the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin *qz:rr7r e4(8hbbcrko ff+3jand a +9.0-C charge is at x = 4.0 m. Where on the x-axis canhbkrrr zcfq (3r*o+f:ebj748 a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin andia )ej.x zi 9-tr zk8rd(mqz(4 charge -q is placed at x = 2a. Where can a third positive cham t(i) xqzej9z .r(z-a8kdi4 rrge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A totalev9hg8 no4(fu/whq( g.: hzwe 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 a5 z; b9ye23,c fowae3ufrj i/ygainst the force of gravity by the attraction of a fixed proton some distance above it. /c3w5y,affuyo;r2 3e9 eb ijzHow far above the electron is the proton?

  Two 0.20-g metal sph 7j+n j mmy5l)7gauwl*eres are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic rj77mgan)w ml+y*j u5 lepulsion 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 magnit 8 f,;mnhmb(iyhak4o+ude of the electric field at a distance of 1.0 m from the nyo,hf;in m(4m8hab k +ucleus?

  What are the magnitude and direction of the electric field at a di o iobysj39 ,nrhljv:r 84.r,bstance of 1.50 m fj 4,b.3os:,iv rjb8hrny9lo rrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude t+qxm 43ouh: wof the electric field at the location of the tesqxumo w+h3 t4:t charge?

  A 5.0-C charge is 10 m from mfvqb;2.c1j*g;-j phf 9m 9b jlejh/ta small test charge. What is the direction of the elel.e c;-tpg;h1 j/jqbfj *9 bm2hvjfm 9ctric field?

  A 5.0-C charge is 10 m from a small test chargoi,g bo9 lh08de. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?gh98o0o,d ibl

  Two point charges each have a value of 3.0 C and are separated by a dista+1)au) vh8m jx:ud:wf sf a3xqnce of 4.0 m. What is the electric field at a point midway betwee1q)a 3a8 :dxx:v fu+)sjuwfmhn the two charges?

  A 5.0-mC charge is placed at the 0 cm mark:r wgu8fbe4 d;(n0s wubk6j sh r75p(t of a meter stick and a -4.0 mC charge is placed at the 50 cm marknu5(eu4grsrhp 8 w0j7dt;s:kfb6 ( bw. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4ti q:aw upac5 i3d-2z0.0 mC charge is placed at the 50 d3zci52p wa0qt-u: iacm 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 = 0 and x = 0.20 g 0d,nei 0e4xd hu3l,pg) gc+ srioq(.m. What is the magh,c)+l( 3g40sx i 0puo.ggd ed qner,initude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squur )crd(8:f xxz:uu6pare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at rxxf u6:c8udrupz):( the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the cor f:sxg*9i+u0o.vd go mners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0);gvo.i* ugm df9so0+ x: -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 yw b6zpq 5h5apufg:8su;;ts; uniform electric fi:g6q w5pusabyfs;z 85p ht;;ueld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has7c*c9d x p,fke 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 place(x 6ckd r:qrpz. ex35yd in an electric field of 6000 N/C pointixyxe5rpcz k6d:.(r3 qng downward. What charge 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 is pptm )f:yde)k0zq+sd3 laced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and directionm3ysd)p0d+z) :ftke q of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. z8neta.7 up7 ;9euqq,k nrzo:What is the magnitude o7queu k9 otn.z; r78zape, q:nf the 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.yj:w5e-lz, s9 . muuyt What is the electric field 6.0 zlsj:yu tem 5yu., -w9cm from the center of the sphere?