State the law of conservativ cufrrmc2(4 hjws :.x9q)pg3on of electric charge.

  Is it possible for two negative charges dve;crl 1o/ u4to attract each other?

  Is it possible for a positive and a negative charge to attract each tr2 bxkn y83w(9m+dte other?

  A glass rod is rubbed with a piece of silk. During the process the glass rabiy p .u2qf/tv5mrma6c6 c7 ,od acquires a positi vymp7i6/ r6 muqf,2acc 5bta.ve charge and the silk

  A proton carries a

  The model of the atom qs5h:5gmmk ls0p u4 wh 3q0jl3shows a

  A neutral atom always has, mt:if z;kc.n/vld9s ucsm/(77nky w

  An atom has more electron 3fc)d1frogz4s than protons. The atom is

  Materials in which the electrons aru /xutz64.p 84 ceqitamdd8p3e bound very tightly to the nuclei are referrex8 epu8di 6z. 3/t dpaqu4ctm4d to as

  Materials in which the electrons k3rb75wa f1s6 vyv+gqare bound very loosely to the nuclei and can move about freely within the matewqa3by6 vv5+ 1fsgr7krial are referred to as

  A negatively charged rod is brought near one end ofk/c4lup 7am ic- .6tim an uncharged metal bar. The end of the metal bar farthest from th/-li6miac mc4t7.upk e charged rod will be charged

  Sphere A carries a net positive(*jbz-5 dj3ywi y 7zjx charge, and sphere B is neutral. They are placed near each other on an insuyjj j37zb i d5*zyxw-(lated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope c--(ubg:akv cpositively?

  An originally neutral electroscopey 7uz588 c i14q0ouimcbz9reh is briefly touched with a positively charged glass 9 7zhcqie1zu 54ui88obrm 0cy rod. The electroscope

  An originally neutral electroscow+pja31evxqd y1 sb1 h(, kpn0pe is grounded briefly while a positively charged glassxnpv ,1d(ajps3keqw0hy +1b1 rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, annagz3/lsk, s k6q,j9td the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens t6/knq,tks3 9jzg, also the leaves?

  A large negatively charged object is placed on an insulated-n46xmxzz4 g s 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 the negative objec z4z6gm -xx4snt. 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 Cou j w d7,sx0,wg;cik3vxlomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance l.rak)ug8 rb3)aft 3ad. The first charge is larger i)r t3r8fuaa.bagk3)ln magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are plj4;al+ hlryk4aced near each other on an insulated table. Which statement best describes the electrostathlkr4j4+ly a;ic force between them?

  Two charged objects attract each other with a certainqt70qdaa.u190 mma iv force. If the charges on both objects are doubled with no change in separation, thet 0auq7 mi0d9a .avmq1 force between them

  Two charges are separated by a distance d and exert mutual attractive forces 3 15 zfy axzzmwwz2si80-(6.fyxsxmcof F on each other. If the cfz mxzai1x wscw6m8y 0x- yfz23.s (5zharges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects ai+eniw1 n5t0grp ,zq*ttract each other with a force F. What happens to the force between them 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? * qiri z5w+,np1 0etng The force is now equal to

  An electron and a proth7bb *6yf:pxu on are separated by a distance of 1.0 m. What happens to the mbp: *f hub6xy7agnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton ar5k; yph: h26aktxq*tn e separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electrnx pha5th2k q ;*yt:k6on if a second electron is placed next to the proton?

  An electron and a proton are separated by a diva hjqu 9xt20 tzxh4+ lznhfp)i1/e/ 0stance of 1.0 m. What happens to the size of the force on v 0p0 z4/j+lithetxzhqf )2xh 19n/uathe proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When anj1kp1. y yi-s second point charge of -Q is placed at one of the square's corners, it is observed that an eksji1 .-y1ypnlectrostatic 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 of the square?

  A point charge of +Q is placed at the centroid of an equsm k+:hwl*l; lilateral triangle. When a second chargk*llwms+ lh; :e 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 vertices?

  Which of the following is notciks*,f c * ,hhz17yd4l3-aca2 ysskq a vector?

  At twice the distance from a point chdb;jth*;i85af ,a qt6 -bxk/r2tbx anarge, the strength of the electric field

  Is it possible to have a zeroc q,k2lts*ny q6td(g6 electric field value between a negative and positive charge along the li2(ktdsg lynq *q66,tcne joining the two charges?

  Is it possible to have a zero electric fiel :fegagg8dz*b6(fr) ld value between two positive charges along the line joining the two charaf8gbe() * :6ggz fdlrges?

  Electric field lines near psitive points6e+ en24f( 0)d jt ov4swgtdg charges

  The electric field su gz8-f8g*ju5pjd6 a/tkd; iqhown

  Can electric field lines inff2dliua to wy, cky,/:2j:;l s4 9jkutersect in free space?

  A solid block of metal6 qt*r35*rty 4k1. mkzsm*e 0ieecjal in electrostatic equilibrium is placed in a uniform electric field. Give a statement ** 6qjl4m.rk1 t ms5ekie*tra yzc0e 3concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere ntf zix0e:hd e92xbodp7,*htv2p6s.of equal diameters are each given the same charge, the electric field (E) midway between thevp,sh.2xbe zx t:d9 pe inft7*o2d60h center and the surface is

  A cubic block of aluminum rests on a wooden table in a region whereymcav (07q9 tx a uniform electric fielyqc x9vma(t 70d is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near a x.yoiu.hq0ja 4b+k b2wd*l1wn electric charge

  A positive point charge is j2+zou0ph6 2 cg/wy o*a5cwalenclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electcg6u5*j2wapl+0 caw/oyozh 2ric field at a point directly above the hollow sphere has

State three properties of conductors in static equ,j5q,;u n bcvn1n7zsailibrium.

State Gauss's law.

  The charge carried by one elec;jpp3 7e 5ee;txv n8vktron 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 .pl ,: hys.g syjx0r*u1w ar0kelectrons does this piewr, p gjy.ha:us1r0*xyls. k0ce of plastic have?

  What is the charge on xbkr/ n eovc6o*)o63v 1 kg of protons?

  An atomic nucleus has a cg:9j+ v )l/ ml1mzhuiss -xc:fharge 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 cmf lgrw b7q,1f68xb g(p.b1q j; su;ogm, have charge values of 2.0 and -4.0 mC, respectively. What isfl 1mq;b,w b(f;bsx jg pgq786.1gruo the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between thm 4iafhgb2 iin/7d/c1 em is 1.0 N. What is thenig71fb dia m2h/4i/c magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1 .tbz2;.hz ddl.0 N. How far apart are they?

  The force between a yfu*-3i rt kkmdk1q.-$30 \; mC$ 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 /d(z5astbk: d-N force. If they are mov5:bkst az(/dded 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 firstg61*r tbh7nnh/ vmte 0 charge is at the origin, the second to the right at x = 50 cm, and the third te nbvmh n/60t71 rhg*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 pla0+9 0;k s jdwkgzwfha8ds16dzced at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 100 9a08 h0dz z k+kwfdwjgs6s1d; 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 the following po gm57+4bb0q y*w: kmbyxm* 2v ov5iwrvsitions: 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 forcv my5:vky52gbw7rw4ixv o 0+ bmq**bme on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a sq:4 myiglr2by 2u4+f0ow(fbe 5.ek vem uare, 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 magnitude of tl0.2f(ei+ w24yg4e 5mkmuboe bfvy:rhe 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., li3jtylo( oqp,l008vy et5lrmhgp 6r5h d.9 10 m); Q3 = 5.0 nC is at (0, 0). Wha03tpqh6l( t8lg.9 ,ro5ipmo yh, ejy l5rdl0v t 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 coysm1 q .8 h l,l5rblnh 2bu*lp 55wgoe/ov);nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). yev5blmh s,25l/*on)ho8q bcwog 51 llur.;pWhat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertulfh0ciz6 e0)eg4qw2ices of an equilateral triangle which meh2l6 )fqeuc0 ze40g iwasures 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 rm7c 4*h dui)hare 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 bei* hh4mr)cud7 zero?

  A +3.0-C charge is at the origin and a +9.0-C8bhw/dz5vh4*cf h8lk charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the dl kw/c58b4 hh*h vf8znet force on it is zero?

  Charge +2q is placed at the origin and charge -q idu;joec59 qg/s placed at x = 2a. Where can a third positive charge +q be placed so that the force on it oegq;d /cj59u is zero?

  A copper penny has a mass of 3.0 g. A totagxb85 w 9.( nsk+zrioll 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 am4xdii e,939wmj 5 f0zpwmp /s fixed proton some distance above it. How far above temmp5 s4xw9d0wp, 9if3 i jmz/he electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thre mbe-t cg5j(*n; di;w-qa, ahev)xmt2ads which are 30 cm long. Both are given identical charges, and the*5ta) x(a2 ncjwibdm- qeh e,v;g-m;t 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 mah zq (7vv u*thg,(b:cfgnitude of the electric field at a distance ot(bhgc*vv h,fuz (7 q:f 1.0 m from the nucleus?

  What are the magnitude a)bgemq; +-e e 6stmdauhkl */4nd direction of the electric field at a distance of 1.50 m from a 50.st )*6g/e k md4el-qea+hbu ;m0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thqsxb e(u t5,x+o, s1-brj,fhme magnitude of the electric field at the location of t, 1(-semj,r,f5+hotb xuxqs bhe test charge?

  A 5.0-C charge is 10 m from a small test c0-fajpk4 4md pharge. What is the direction of the electric fipjfk44 -pd0ameld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the ru.s;c5 5bj6 1nn8ktfn+4 vlbchbbk+ force experienced by a 1.0 nC charge placen.8bn+5j46vb c5n crl f+;htsuk kbb1 d at the location of the test charge?

  Two point charges each have a valuy k+t4.m n6e2da8*+ wmxw:ozsd f/gnme of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midwayzx.y:g2f m omkt*a4wnmd+8s wn/ 6+ de between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mei)8pymlyu*mo foyt, i-)tv (q.r/ v,i ter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fimyofl )iqm-oip)/*it 8 vv,r.uty (y, eld at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm makbg( trk( o*,2bnd9 jys9tt-rrk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a j bn kr99t(gybo(-trtk ,d*s2 line joining the two charges is the electric field zero?

  Two point charges of +3.0 gko**ti +23dvwo7pqm mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is twi+o okg*p2q dv7m3* the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thrf:p3rbl be5k*ee corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Fink*p e53bbfr:ld the electric field at the center of the square.

  Consider a square which is 1.0 zs+qrop cpszjj* ):78j jv/4wm on 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); -3p s8)jvzqco s*p j:7rwj jz4/+.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 )64re pqtn-*k,otpttof 5.0 mC when it is placed in a uniform electric field. What is the magnitudt ntt,-kto6e qp*r )4pe of this electric field?

  A particle with a charge of 4.0 mC has a mass orgr, tb7avz)x*gzh9 / f $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g c mw g1 ,pev6. 4yafvvk2f9yf8is placed in an electric field of 6000 N/C pointing downward..k 8v1v2a fgeff wpym,yvc9 64 What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries) o 2(, xw7zxinandrl3l8zmn( a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended ag i3 lra o8)m n(w27lz,(nnxdxzainst 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 mC. What is lu,l7sx6m /irthe magnitude of the electric field 5.s7 6,l/rmu xil0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. l.m loe(7x0vkjil8 ; hh sd6q2What is the electric field 6.0 cm from t0d .6hi;2ll k8xq lmov7( shjehe center of the sphere?