State the law of conservation of ele5e( (z+t.odrqtjtv9k 2qt udp (1vp i(ctric charge.

  Is it possible for two negative charges to attrac.6za gca jj( :5zai:dmt each other?

  Is it possible for a positive and a negative ch ie8p7h:xq;8d 4da.u9sz nlaorhu. 3 targe to attract each other?

  A glass rod is rubbed with a piece of sikk* qhtv-(j u s k+kigss40)o3lk. During the process the glass rod acquires a positive charge andj*)tk 4+ k (s-kgovhu3s0 kqsi the silk

  A proton carries a

  The model of the atomg ;snh6x-/ic hvp(-n35r-qlwde ,e cv shows a

  A neutral atom alwaysjjiej,s ha(18.i,jt l has

  An atom has more electrons than protons. x0 rgf582,sp-tehpv0 kpc6v zThe atom is

  Materials in which the electrons are boblw, . el bq5*s3f4zczund very tightly to the nuclei are referred to ab34f*wzs l., bezqcl5 s

  Materials in which the electrons are bound very loosely to the nuclei and cansx9 rs)fd+0 mj move about freely within the material are referresxms )dj+f09r d to as

  A negatively charged rod is brought near one end of an 1n z7, wrr;7g+ukxnujuncharged metal bar. The end of the metal bar farth uwg,urznjkr1+ n7;x7est from the charged rod will be charged

  Sphere A carries a net positive charge, and sphjz1x+:os 2pp*.g;y ugcsxjb :-z4yzrere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wir*; gbrc2 :.s+y-zzg xppzj :o41uj yxse that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pos+li hb 6)x9px/gwt f84pj7z ih l+rl0bitively?

  An originally neutral electroscope is briefly touched with a positivel8fr.wl w6x;fr y charged glass rod. Thl wr;fw86x. rfe electroscope

  An originally neutral electroscope isr / yvwgjc0k ur6/o.8s grounded briefly while a positively charged glass rod is held near it. After r6/sg 0k/.rc wv8youj the glass rod is removed, the electroscope

  A positive object touches z6p7c5)hd-lt5s(yg y , jhuh qa neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touchjh5yq (du y7, zcg6s5th-l)hp it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neu2b02wgmw+48ai ( h dxte-yc b5 pjjr0htral 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. At no time does either ball touch the negative oy82ip b5t0e4wj hh-mdr 2c+xjgawb0(bject. What is the final charge on each ball?

  Charge is

  What are the units of , wknvnak 3t)z1ybb0 5the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatei (m rglc-4bt-d by a distance d. The first charge is larger in magnitude than lbimc -(r4g-tthe second charge.

  Sphere A carries a net charge and sphere B is neutral. yvkrno jguaq3-1f r:m9u7xe+ 4 (f )xf They are placed near each other uvx -rrx(q 7 f: jngfm4u+13oek)y9afon an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. 7y0jmqa9j:05 ooe5l qq fb bu*If the charges on both objects are doq 5 qqb5b*jo0a el9:u m0jyf7oubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attract n :*q;rlt onbjzys,48k0.hplive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mbnkt.ln :0*srqzo;jh lpy,4 8utual forces?

  Two charged objects attract each other with a force F. z eq6b8 qd1 h/*bxtd)gWhat happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is re 1q86zqxbehg*d/dtb ) duced 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. Wha qyza e*p) 4kn-w- 86qk at:qrv(nnq5at happens to the magnitude of the force on the proton if a second electron is pq4(ta q- qeaqw y6vzk5 nk*-ar:npn 8)laced next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Whatnhs;q:h0mts zi 1l.8h happens to the magnitude of the force on the first electron if a second electron is placed next 8h. ;ln:iz1 ssh0qht mto the proton?

  An electron and a proton are separated by a dikl nmhs7k9(g6) (yql tstance of 1.0 m. What happens to the sizeq(h)g 9y( 6lmk kl7nts 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 t b i0 u38,+ufunrpduwo5vh,-xhe 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 positive charge at the center o-+ p bruxwhf3 5uouui0,8n,vd f the square?

  A point charge of +Q is placed at the centroid of an equilaterj./f4zf )idh4t w8prqd47p n jal 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 thedj7fwzq4ph4f/ jr4.d)8np ti center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vectoraqz q50q4/ qu,f+dazw?

  At twice the distance from a pxk. (gnkephlt.dh16fwi9; - qoint charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative 8a f idvfwoeil73)(yt6 ;bpv2and positive charge al) 7l 6v3ey8iow f;fd2vipatb (ong the line joining the two charges?

  Is it possible to have 6/e4vh)u6tcc lw knt9a zero electric field value between two positive charges along the line jw/vu)9k6nhe6cl 4c tt oining the two charges?

  Electric field lines kgg60p ,1 c otalgwl))yhu: (dnear psitive point charges

  The electric field sho8 : a)q kh5kihp+tc2)z x(myrtwn

  Can electric field lines intersect incrsf;jn:gt t 1 ;l8x7w8nu1.kiax1x a free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform eley )ffhs: wu9l6ctric field. Give a statemew9fs6 )fly:hu nt concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal di7cdf9f7zl j67f 5 shphameters are each given the same charge, the electric field (sf5pjcdf 7zhh9l7f7 6 E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden tabl iq08 gtomo4 p25yrnqkpes66-e in a region where a uniform electric field is directed straight upward. What can be said concerning th5tq4sn2pr oe 8q6y6pmg-0k io e charge on the block's top surface?

  If a conductor is in fx 8/cjl vwc0y8 kr3g3g 2ael/electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in dshof,9h+u )e8 ye;d b(l;kbta hollow metallic sphere that is grounded. ;9ye(t dk h+)eboh8;u,bdfsl As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriumxa,6f6-w mha us q:7fm.

State Gauss's law.

  The charge carried by one electroo):)u xry,0zn 7- l*aqww xltd)ze0pd n 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 manfa-t:;j6 smr+hsb8 ray more protons than electrons does this piece of plastic hah:a rtf+;86 sj bmar-sve?

  What is the charge on 1 kg of protonsz c b5a.w9h*qe?

  An atomic nucleus has a ch8wfk,hj b6k:2vo.t n+b4tq/zumi- p barge 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.zv ;i3brfl4b:b 1vpeb /hy4 t70 mC, respectively. What is the magnitude of thevbh7b tev ;lpy4f 43rb:bi/z1 electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force bp.m*sti::gm *2fjcf5i m2(y rt9 rmsmetween them is 1.0 N. What is the magnitude of the second my.cf ms 2i(:f5*irmj *: rtmg2tm p9scharge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are7u 1im 26uhx/7pww8lua(i bth3: hu wd they?

  The force between a v6p bq lv131e,)rb- t:xx (wisabm,ov $30 \; mC$ 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. I7rl g)i2 7aabtf they are moved to a new separationtr2gb7aia 7l ) of 8.0 cm, what is the electric force between them?

  Three identical point charges om35p* ru:et7 8si:simrm4kju z ks4.ff 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to :p j7s83u4mi ss rikkz 5 *re4mtm:u.fthe 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 place 5j c+cr/hp3vtd 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 mag/cvt 3h5p cjr+nitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are lg8 dlqguz5ws*/ews (, uqy(m1 ocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC atslgw/du8g5*zq( ,we( s 1mq yu 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 square, and a second poin-f2q -pgh4gkys)a8tet 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 the center charge if a third charge of -Q is qsgt8 a4eg- k )fy-2hpplaced 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 = 5rw,td5c6xz)liyu + z +ex6:un.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charz)y ei:ruu56cx+6+d xzw,tn lge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is j4 wo1 q;1;tx*ffjyz*kry8w w at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0;wjfz r 8jqkwt1f ;yyxw*o1 *4). What 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 equila -n x:v8jrmis/gqxgk*n+,/kr teral triangle which meas*k vr/8g/x +q,smn jxkgni-:rures 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 8 kco0 f0 wu e,v4whwnvv9*ig m+nc 5yu((j.pfand +4Q, which are separated by 3.0 m. At what point, on a line between the two pfvvciej ,o+095fv*w.0mwh8c (wn nuuy k4( gcharges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at th.s1igb jj.yk :e origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so thsiy1jb.k.j g: e net force on it is zero?

  Charge +2q is placed at the origin and charge -q isholo8d 7m0ya; placed at x = 2a. Where can a third positive charge +q be placed so that the for ho80 7damo;lyce on it is zero?

  A copper penny has a mass ot; g1jmrlm, fjhq *k1.f 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 fo7pwfzw;.x:b rrce of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the proton?. z:fpbr7x;ww

  Two 0.20-g metal spheres ao4k*r gs9x3mfre hung from a common point by nonconducting threads which are 30 cm long. Both r*o34f 9k xmgsare given identical 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 has a charge of +40e. What is the magnit:yhpk; mb-:xf fusc38ude of the electric fieldc-xyfmpf ; :u:shk b83 at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of pyelgg523 oh8j ho ez6pn,y/. the electric field at a distance of 1.50 m from a 50.0-nC e5 ,2 o.yjhggylo ep/hn3p8z6charge?

  A 5.0-C charge is 10 m from a smasz2-dz: jaz.vf: mst u86k8szk.oy0d ll test charge. What is the magnitude of the electric field at the location o2u y sok zzj0:.z88.asft- m:d6zd skvf the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dg +:yu ags,h3tirection of the electric:u ggy a3+hs,t field?

  A 5.0-C charge is 10 m from a small tes9,seyktlck a k7.58eljj u7/ wt charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test cha/w8 y juk7 sj et7cea.ll9,kk5rge?

  Two point charges each have a value of 3.0u0g73n1fqmw-e/ v*yk9j66ikr rzsh c C and are separated by a distance of 4.0 m. What is -ur/ny7hq6v0refz61 kgk9 sw*jc mi3the 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 zf (c+gss. h4kand a -4.0 mC charge is placed at the 50 cm mark. What is(c 4.h+skfszg the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meteecsc+f)1iu 0hsy* /uig4: gaocn/s +rr stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges icgusosay:1++u)i4 ir g0cncs// hf*es the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m :jfw 57zujtvpc7 b8m6. What is the magnitude of the el f7c6j58uj:tz7mwvpb ectric field at the point midway between them?

  Three 3.0 mC charges are at fjkp++iq lqv8*bk n+e7q:m,f the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charniq*evl+f,p : b7 mqf8j+kqk +ge. 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 thxzmr 9o:bz9 i7e corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1);7 r:im9ozzb9x +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 on a charge of 5.0 ee*e8d2ht1 as mC when it is placed in a uniform electric field. What is the magnitude of this electrich2eea8 *t1s ed field?

  A particle with a charge of 4.0 mC has a masg 5 -7fk*6jg7ya4*vm xrta;dx,e cbp ss 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 ft s2jhf567+ifa+yg a vyiak,m82ck h*ield of 6000 N/C pointingia*v 2,6fgc+y8 f amayk t+257khjish 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 plac-wkje3*+fxfc e 7.z6a d /ls 9i6qxxzied inside a uniform electric field, and is suspended against t3 zq*a-iezjk/ dfe x6xc x+7 6islf.w9he 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 mC. What q kswqs kde40.di.6;qs/(m hsis the magnitude of the electric field 5.0 cm from the sphere4 6m iss0wqeq k/.;sd( hsd.qk's surface?

  A metal sphere of ra(nxud emi/gxq9qc+: 0k )vt: edius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphe 0i(qx)/g: dt qx+nkmc:9u veere?