State the law of conservation of electri x; dt-3 bq2*9pkhjpckc charge.

  Is it possible for two negative charges to attract each oh1n9j ;jv.w ujther?

  Is it possible for a positive and a negative charge to atxql4 0 ewu-eo*tract each other?

  A glass rod is rubbed with a cp60-i .b) p;z,e0*afgsi dzt,nycx opiece of silk. During the process the glass rod acquires a pos *dg,, s0ie6xzo bfpz0t)ip. ;ycca-nitive charge and the silk

  A proton carries a

  The model of the atom s7fpp ,h 9emu6-4h vqu1h)tdh rhows a

  A neutral atom always l n;oyhj br:e(wr:3lb) ;9mic,bdq mbii..h2has

  An atom has more electrons thalb,enyx-) *czzk;z2*p lbiio 9f/h6 wn protons. The atom is

  Materials in which the electrons are n797vy o9/d:uk3x zaeng9 1ayqu *ktt bound very tightly to the nuclei are referred to as 3t9yzq*ugnet7 koa/ 9yu7va 1d:9kn x

  Materials in which the electrons are bound very loosely to the nuclei a o2 j5.nnkttyb2mo*3 pnd can move about freely within the material are referred to nt5by. kpnt23 m 2*oojas

  A negatively charged rod is brought near one end of an unch- yxw8ja0 vu9vxnc./(tao(nt arged metal bar. The end of the metal bar farthe-nnv ja.v(c8t0a /yu9(xtwxost from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are pl/c u)r cu78httaced near each other on an insulated table. Sphere B is briefly /7 r)tct u8uchtouched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively? uwa( .ylrqloh7-e-,(i dpml.

  An originally neutral elect(+i zloqbn(3k1m ynoo7nc b3 )roscope is briefly touched with a positively charged glass rod. (3bcnqnk)l1(oboi3 z7m+ oynThe electroscope

  An originally neutral electroscwd ,lv3v -nfv4m1yscj7;2r wn( icy7 pope is grounded briefly while a positively charged glass rod is held near it. Aftycp27nvldin rc ,wfs 17mv- j4;3y (wver the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leavesvwj5 1k)8r bhw separate. Then a negative object is brought near the electroscope, but does not touch it. What happenshrwk8bv)5 j1w to the leaves?

  A large negatively charged object is placi2 apr 8x2ip4:fxrn 9ped on 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 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 e:x r9piinppfr42x8 2a ach ball?

  Charge is

  What are the units of the Coulomb conhace1/1 fv t79t j(joistant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a 6ug(.2 u73 z euereiebdistance d. The first charge is larger in magnitude than the second charige2 uz6bu7( eee3.r uge.

  Sphere A carries a net charge and sphere 13tn ;ui8 tlrxB is neutral. They are placed near each other on an insulated table. Which statement x31 ;utr8lint best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If lr ;j1-cf9bt 6u0rixz the charges on both objects are doubled with no change in separation, the forc 1i0trj9-u;r lb 6cxzfe between them

  Two charges are separated by abrvch11 0 m e p.i0xw4jrg1wz7 distance d and exert mutual attractive forces of F on each other. If the c1c.7xiz 1v 0p0r1grwhe 4jbw mharges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hat/p5a3rkc h, mppens 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? The h5k m /,3rcpatforce is now equal to

  An electron and a proton are separated by a distance of 1.0 m. Whafl+7faxp k4)r t happens to the magnitude of the force on the proton if a second electra+ )74x pkflrfon is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. W;pz /bgvn,c. uprb86j/wd v c)hat happens to the magnitude of the force onvv) 6cpg,rw/cupj8 b./z bdn; the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distanc)l7op1jfe6vxv04ssu ,;l gvce of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the prcfsl,;0 vjp ve1 l4gv7)s6xuooton?

  A point charge of +Q mv3axup n9v69 is placed at the center of a square. When a second point charge of -Q is mvv639 9pnxu aplaced 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 of the square?

  A point charge of +Q is placed at the centroid of an equilateralg+9wc2a q*uxr 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 o* 9ga2c+wxurq f +Q placed at one of the other vertices?

  Which of the following is not a .a uw:l)9o)-hol6e , bnqfzjz vector?

  At twice the distance f3ehto p64lig36 9oli;hjxe :wrom a point charge, the strength of the electric field

  Is it possible to have a zero electric field val.s9( ffe nlm7pue between a negative and positive charge along the line joining th(9f7 l mfsnep.e two charges?

  Is it possible to have a zero electric field value between 1 ;-vaz: ddbpbtwo positive charges along the line jozvd- d; 1bbp:aining the two charges?

  Electric field lines near psitive poin2k9tf+08z,chagqh tpt charges

  The electric field show+az8azfs 1w 0wn

  Can electric field li+ fjtuha-8i) bnes intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a tcz73it:; ze iuniform electric field. ezitc ;zi37t:Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal s,/3c mn3p-y; xv gotxhphere of equal diameters are each given the same charge, the elth x pxmc;yvo3-,3g/ nectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unif+8vtjne1je;67kl y odorm electric field d;vtj8o+elny6 k1e7 j is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic hb 3: 8 anzds2jsl3dpga 0na47equilibrium near an electric charge

  A positive point charge is enclosed in a a 7u8b*npjj-q hollow metallic sphere that is grounded. As compared to the case without the hollow spherjpb j*qn7a 8u-e, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equ0 7:wl6m +y pxhd41kasbz1i slilibrium.

State Gauss's law.

  The charge carried by one electron is n hu4 x087katn*zr 1xu$e = -1.6 \times 10^{-19} \; C$. 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 npuwj5b*wvmbb7)89 6qy+z-6 go pm9ag v cll 8more protons than electrons does this piece of plyl g)bmql -69*c 7 6v+8ajvgunbbm p9op5w8zwastic have?

  What is the charge on 1 k ss:s8bb19z1:(su 3xdpg fohp g of protons?

  An atomic nucleus has .olrdl 6we8jf,d( umum )2+lha charge 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 ofkzwle o dp16y7yk b)n/ (4x5ce 2.0 and -4.0 mC, respectively. What(e7n ok5)w/dkyxc ybl e6z1p4 is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from zx45y.;tptgru8jj y,ck / 8i ka second charge, and the force between them is 1.0 N. What is the magnitude of the sjkrp j k 8yt. ;/t,gix8yzu54cecond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apya(f9 ek*.7 5xdq0ifsbg lp6u art are they?

  The force between a ofw xv;8l2o/r$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apar5tbk9q/f:ze r t, experience a 1.0-N force. If they are moved to a new sepb /9ktfer 5zq:aration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed onkd ir6bg3:e d a06u z/t9xtc99xf,dwh the x-axis. The first charge is at the origin, the second to the right at xcdza6b g6dk9f 3ttx/: h9u ,xe9r idw0 = 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 placehaexm6q.)auyw)9q( w d 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 t 6)qy mq.ua9a)xw(we hhe charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x;s b7 a x,zs5dtcd0ov5 = 1.00 m; Q2 = 3.00 mC at x = 0; Q3sd5 sv;5 abxtd,o0 cz7 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placedg/u5w o8p +cpd at the center of 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 a58cwpu+d/gop cts 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, 0); Q2 = -1.0 nC is at (0, 0.10 m3nns /h d -179tttvwkd); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net f9dn-3tdtv 7h1kn/sw t orce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0);m(q-/2as,noodzu, je Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5q , ( 2maudj/,ooe-zsn.0 nC charge?

  Three identical charges of 3.0 mC are placed at tm7*-ha ik/ 7hymr(hewm z-ouh(ec5k0 he vertices of an equilateral triangle wau -((7*khwm5h0 / emoihzcm7k-ey r hhich 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 of +Q and +4Q, w sutvq(:ptrz31fsq ;5j 6a+t yhich are separated by 3.0 m. At what point, on a line between the tuqr 5pta f : ;z+sj1qv3t(6stywo charges, 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 the origin and a +9.0-C charge is at x u*gr je,uki, bi45qi 2= 4.0 m. Where on the x-axis can a thi ij, *ieb5 kruuq4i,g2rd charge be placed so the net force on it is zero?

  Charge +2q is placed at-clak(h uw*r- the origin and charge -q is placed at x = 2a. Where can a third positive charge +q balkcrw- h -(*ue placed so that the force on it is zero?

  A copper penny has a mass ofhnv ,l,6gxc cu ;du3z: 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 *jjj4 f6 kscrh7lf,4/eyii .dagainst the force of gravity by the attraction of a fixed proton some distance above it. How far above the eyedfj hf6* kjr i7ljc,4.4s/ilectron is the proton?

  Two 0.20-g metal spheres are hung from a common poihk :su(-gu bl;nt by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces theg:-sluh(bk;u m 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 +4k o1r n1)ct9hd0e. What is the magnitude of the electric field at a distance o1o 9 d)nh1ctkrf 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distanc 7jhue3tqjna4(:48 i ohqu:f pe of 1.50pf4j u4qa3o:(q:n j huh8ti e7 m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tes4 ejfr:- p(tjet charge. What is the magnitude of the electric field at the location of the test charret pefjj :(-4ge?

  A 5.0-C charge is 10 g4c*iwbd5 jm9m from a small test charge. What is the direction of the elw49mdgb5i* jcectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of+u.cbxm el5k6 obn) gp;sxo:: the for.ox g:;bselp 5+6mu)bokc :nxce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distagg7so*l dzh3/nce of 4.0 m. What is the eleol3 g d*zsg/h7ctric 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 and a -4.n(i31hg zm a-f0 mC charge is placed at the 50 cm mark. What is the electagf1-(mi z3h nric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter s gxlzgg20 v+wf5:0rh ltick 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 field zf2hx lwvz0 l0+g gr:5gero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.2 0 .ijr:tp:lcxk/pf 15bjuua)k1y9f n0 m. What is the magnitude of the electric field at t 1.pa5ff :t: i9nrplyckk jxbj0u u)1/he point midway between them?

  Three 3.0 mC charges are at the three v8:qyvbusb( x vw6*l-q.km+i corners of a square of side 0.50 m. The last corner is +x :vlqv. 8mqwi *v6uk-bs(by occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.vbqpewty/ ;( ./xabz20 m on a side. Charges are placed at the corners of the square asq bvaby.2(et w/;/zpx 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 electric field at the square's center?

  A force of 10 N acts on +hbe/ay *zj s8hl :8eba charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electri8:hjy lzsb +8eb/he*ac field?

  A particle with a charge of 4.0 mC da*ma-cva*yi r9 9/cf5z/y0rbpdn +chas 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 60055ton9 ) d 7pmugai*+z 9whuzt0 N/C pointing downward. What charge must be placed on the ball for it to be suspended?td *zht9u5 u)wmog 5+ z9an7ip

  A foam ball of mass 0.150 g carries a we0 4)y5y5ijkwrv, hocharge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnit , wo545i0jyhe)ykwvrude and direction of the electric field?

  A metal sphere of radius a*.u r .cn4zph*vqq1 w10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the spzhv*uqn. *qcp w4 a1r.here's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electri5va fc t0rd3;zc field 6.0 cm;3td0 rvz5a cf from the center of the sphere?