State the law of conserv sk*z 8.n0ahxlation of electric charge.

  Is it possible for two negative charges to attract eachy18,zbpdp r f3lh;*;w5 fsvqu other?

  Is it possible for a positive and a negative c 1 .d7jttij,kyharge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glbj* 1kla iyz(-ass rod acquires a positive charge and the silkab y1l -*j(kiz

  A proton carries a

  The model of the atom showp8ivlhg e999 9j fnfx;s a

  A neutral atom alway9fnnrzz.)5iy ns88kaid.r u :s has

  An atom has more electrons thk/c-2v : mz3,,dowwoxv (mig68g qacpan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are referr q;n:uwu(h f9l. jump*kqs5e n*vc,j)ed to u9,hwnkn)uc(e*q fj mp5uql.j ;vs:*as

  Materials in which the el:bl*:evb os*.e miox9ectrons are bound very loosely to the nuclei and can move about freely within the material are re:lm:vbeobe.*osi*9x ferred to as

  A negatively charged rod is brought near one end of an uncharged metal-pdwwd/;g1x iq(dm3r bar. The end orw 1dg 3q/xpm-(di;wdf the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and se/,34) avpsxuk u.ktj c fq mna563(jephere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded.sjxu,)5/a4c 3qaf jetkm( pe6 vku.3 n Which statement is correct?

  How can a negativelys+o ;9hd+5(an wwiith charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positivj; zej)4y bae l0gj5)1o bz0gzely charged glass 5z j)0ggajbj ezyeb04l1o)z;rod. The electroscope

  An originally neutral electroscope is grounded briefly while a poghjh 9lrg zo /,r830yvs2 6haysitively charged glass rod is held near it. After the glass rod is removed, the elec/h2v,9o6y j a03ylzrg ghrsh8troscope

  A positive object touches a neutral electroscope, and tfv.f35v p5 phh ,s1uwphe leaves separate. Then a negative objectpf f,hu1 .5wv3v5hps p is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insula;j h ksadv.ugjm,e* 0.ted 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 ju0 .s;gd*,ejha .mkvthe 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 constant 2c lr2,,6ni eo*oxygm$k$, which appears in Coulomb's law?

  Two charged objects are srmn0/xev2a 6tm /ehfsf7q4t 2 eparated by a distance d. The first charge is larger in magnitude than the sest7nh/ 22fqv t4 rxa0m eef6/mcond charge.

  Sphere A carries a net charge and spheres7xenp mggdk zk1s) ql( u*-1: B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betwud1kpezgx-gs(s q* 7n1):kl meen them?

  Two charged objects attract each other with a certe32i 2y rqjk;tain force. If the charges on both objects are doubled with no change in separak2y2;t jri3 qetion, the force between them

  Two charges are separated by a distanzddxr 3zjyq37dn ukk/ggc ;zdb:-4 *.lb04o jce d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of k u 4.gddzz0z4d3dbg;k7cr by/xq:j-ol3*nj d/3, what are the new mutual forces?

  Two charged objects attract each othe5t.k8axvdy x8m -2s2afyc/cer with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distasy-k.2a f/vx8ca8yx mt 25cednce between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are s0f tr,vl8b43qqqq7snsq 3 u +qx 0ktb-eparated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first elecqs03f3tv 8,bx kbu+q-sln4tq0 q7 qqr tron?

  An electron and a proton are separated by a distance of 1.0 m. What happen(wq beekrh7 5y9;26bodvux. o s to the magnitude of the force on the first electron if a second e9(o;k bd. b625rqwvhyou xe7electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.ultwg) 0r* ey 49gqyy) jdrs+10 m. What happens to the size of the force on the proton if the electron is moved 0.50 m cl+s yg4td 9qg) ujrwe)10yryl *oser to the proton?

  A point charge of +Q is placed at the center of a square. Wheny 2 q(ni;sw;k +.v(pjxt+nzzk 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 z;pkwi.( v(+kxn qjs+2yz; ntpositive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilat zgcqlhp417 ske,xb q3:kb8a +eral 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 versq 7lg1 bbzh p34+ :ekaqkx,c8tices?

  Which of the following is not 3z wbkf *27vp;k.l 2-4wtmica qnm:f pa vector?

  At twice the distance from a point charge, the strength of the electric fie hfl4z:5 nz )eeb8ll2lld

  Is it possible to ha ja/1mci: ijcsv;p2q19nh 8cgve a zero electric field value between a negative and positive charge along the line joining the two char g cqcpc/i;js1v 29nai:1m jh8ges?

  Is it possible to have a zero ec3 3iw*warfy.ny/1ehj t jr93. 2mtye lectric field value between two positive charges along thyey ah3iwn.. r y jtw32f/9jc1 3rmte*e line joining the two charges?

  Electric field lines near psitive point chargesm /dsobl s5y lp glc*ler+7:9.

  The electric field shown l8ii)/d qe(om8fqto u24nj :v

  Can electric field lines :6vc+c p lee5o soti5uvw,l2 7intersect in free space?

  A solid block of metal in electojd kc0 2og:jcr28k mt7-dm-m grx e)/rostatic equilibrium is placed in a uniform electric field. Give a r-jrdoojt -8gm :02g7cm mxeck2 )/ kdstatement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere oms9 d9qll:d 8cf equal diameters are each given the same charge, the s c9l9l:8dq dmelectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region wv y 51ofnperh8 ,(hu/hhere a uniform electric field is directed straight upwnp,(8 f1hyhhvo/ 5reu ard. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic ebg6kcw2 ** ffgtj g n(b9 iepgwc)+s7(quilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spheo71 z hl;sq;otre that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphereol;zo q17ht; s has

State three properties of conductors in static equilibei u)88hoa n3(/epqhrrium.

State Gauss's law.

  The charge carried by one elect6a h eqrv--p+jron 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 prottxsm5 -cp / h.2+wpixtons than electrons does this piec5i pt /x+tpwxc.-m2h se of plastic have?

  What is the charge on 1 kg o y-8b ;qodkmt7hb4rh 56*c qjjf protons?

  An atomic nucleus has a ch0ir-ov/ ) eoe5ds 3o2hwu4gdktnykn/ w/10auarge 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, r l2qjxn + 1;,epzdqg4ha4cjg8espectively. What is ejq j dhpl4+,n;42 81gqaxgzc the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from axk;-t/q jjf1w second charge, and the force between them is 1.0 N. What is thj ; x-/fwt1kjqe magnitude of the second charge?

  Two 1.0-C charges have+x qrf18 +0afpak+ +lunr3nl mduu51r a force between them of 1.0 N. How far apart are they?

  The force between a (ltel5 bl f-5h$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 d:uk c.9(lyip cm apart, experience a 1.0-N force. If they are movi.d:ycp9ku (l ed 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-axi d 2ibr4qm lx(su-7uq:s. 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 theu 7uiql2xs4 d-(m rq:b electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the (e r9*k+ yxg;urnq g7ex-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 atrk7r uee 9n+yg q(g*;x 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 locaio*m+0q3 gkk)zo g lc0ted 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 the 3.00-mC chqk)3 cg limo0z+k*g 0oarge?

  A point charge of +Q is placed at the center of a square, and a second poi4/iwb.a7wamn;l 1 gsint charge of -Q is placed at the upper-left corner. It is obs7 ab;ls i/1an i4.wmgwerved 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,vb: p2q)go+ yo 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0,vo:b+qpo2g) y 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is ar)pc07s4avr /hpmxct92/ du nt (0, 0). What is the direction of the net 7 ch4nr/s m0/tpvacru9p2x)dforce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equil/dl2sys op5*cb/q + cgateral triangle which measurl5+gscod/bc/q s *yp2es 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what :w yy(vzet:9t point, on a line between the two charges, would it be possible to place a charge of -Q such that the electroyz (twt ::ev9ystatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. pcf.m9 j8 cb,mWhere on the x-axis can a third charge be placed so the net force on it is zf8m9cj .,bmcp ero?

  Charge +2q is placed at the origin and charge -q is qsjx( n(5/h,2jbol pwplaced at x = 2a. Where can a th(bl2/w(xpq oh,j5jn s ird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass o+ mp(h,i3 2hj; duzqxpsmde)j hm8l95f 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 attraction of a fix 6zfig83v kl: /vxnd0/u4q-1yt x dnibed proton some distance above it f 1n:v q3k /0/t li-guxddni8vbx4z6y. How far above the electron is the proton?

  Two 0.20-g metal spheres arecyiwyc lai 0jjis4.5dd32m 89 hung from a common point by nonconducting threads which are 30 cm long. Both are given identicalyjidy.ilmds a8j9 ic4w5 32c0 charges, 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 has8u qtv ir9-ov.kqa,r, a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 ,r aik.-vtr 8qou,9 vqm from the nucleus?

  What are the magnitude and direction of the electric field at a distanc7 i7 oc+c6zxbne of 1.50 m from a 5b7c i+zx7n6c o0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the max (l +d,p7e )9awsenkngnitude of the electrinaes9e d,k xpn+(7lw)c field at the location of the test charge?

  A 5.0-C charge is 10 m io*e+ n,vp6 lbnks*4sfrom a small test charge. What is the direction of the electrsk6*eonnp4+bs*l vi ,ic field?

  A 5.0-C charge is 10 m from a small test charge. What is the m;sx : 4x;dts8ca ccxj.agnitude of the force experienced by a 1.0 nC charge plax :c;8cjsc;dxxt 4s.a ced at the location of the test charge?

  Two point charges each havesepism :8 k 1iteme56j1l-v z; a value of 3.0 C and are separated by a distance of 4.0 m. What is m: ees1vi8 k;l-e5j6z1ti pms the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at kz*4)e 6xho(r9 e)qguv q*tl hthe 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mar* o 9rvgt ekhlhu)eqq)*6z 4(xk?

  A 5.0-mC charge is place:+j wf2hz(xkb4d)wpkmgk,l7 d 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 line joining the two charges is the electric fi, fzw dwh2pk:7x l(km+)4g bjkeld zero?

  Two point charges of +3.kqrzt9luz(b(k1) km.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electr )kk( (ztqm.19rzulkb ic field at the point midway between them?

  Three 3.0 mC chargesw)9t jx4 3+zxg x2/po mjid.78tcmk owhfx.5 r are at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC ci g 5h9x/two2dm)z7+fjr 3c kwx.o.8 tm4jpxxharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at thnv8rb o47 w), nd4:p payw 4*syat1sxje corners of the square as follows: tv7wa ) n a4n 8,sydjs:b*1pyo4 xw4pr +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 electric field at the square's center?

  A force of 10 N acts ocdp87vc : e*ljn a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electricpv :c*d j8ce7l field?

  A particle with a charge of 4.0 ce)m7zhuap7 i9to9z v ) 60,cz2fpjaimC 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 electric field of 600a3h/krrqa4fvbef /p ru h))-xjc(2 7 w0 N/C pointing downward. What charge must be ke3vpqax/c27w )j/h)f ahrr-ubf(4r 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 xn1 y1 .a5uffris placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude xy1nf1 ufa.r 5and direction of the electric field?

  A metal sphere of radius 10 cm carriex r5o4ck 6fwy8s a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm frx6ry5k o f48wcom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. pzd lqlj5qi6h8 ).w 8sWhat is the electric field 6.0 cm from the center of the sp8qsidl zj6. w)8qhl 5phere?