State the law of conservation of e 6o v:t56 xdj)j6s*l8jla vjqblectric charge.

  Is it possible for two negative charges to attract 6 -,7 ynor9iocz ylw4ueach other?

  Is it possible for a positive and a negative charge lu/:o s)4o0 ;6s npnc ijaz6n7atg /ctto attract each other?

  A glass rod is rubbed with a piece of silk. Durinuz7e2c,f1 y)i zo.l(ng)*/mbetnok sg the process the glass rod acquires a positive s) bi1eneo, 7nzl.( 2cu f)otgy/ m*kzcharge and the silk

  A proton carries a

  The model of the atoitb+((pxv-sq +2c7xp cgzdxbe 6j,(xm shows a

  A neutral atom always ha/ ynb*yj gms0n5. d w,zstkb*se3fq; +s

  An atom has more electrons than pg-v;ebnl/t7c)qbb z p*,:wn m rotons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refe m/vs 3j5h rd 46oefkb*df)d1jrred ) hdf1j dd54ejofk*/r3vs6 mbto as

  Materials in which the electrons are b33 ean;kuo7 blr f:l.cr 1d/ckound very loosely to the nuclei and can move about freely within the material are referrfklou:ck/a73; b nc .1ld3erred to as

  A negatively charged rodu)e5q bl07 ygqz8 ,yra is brought near one end of an uncharged metal bar. The end of the meta bz 5r78le0uqyya,)g ql bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They aroh cko+ we;90de placed near ea;k+oohw9 cde0ch other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively ch5 ;)b)m9x.p yj imfiqparged rod charge an electroscope positively?

  An originally neutral electroscope l v9x46rsz12n0 *v- j gep6dt/lkpz eois briefly touched with a positively charged glass l -rv04nkg pl6612 jtz dz*v xe9s/peorod. The electroscope

  An originally neutral electroscope is grounded brief(d ub6 ba.pmn0ly while a positively charged glass rod is held near it. After the glass rod is remuab( 6dn.p0bmoved, the electroscope

  A positive object touches a neutral electroscope, asvz,+ap t,ce /nd the leaves separate. Then a negative object is brought near the electroscope, but does not touch it.az,+/sptve ,c What happens to the leaves?

  A large negatively charged object is kl+tzya p7 .e.placed 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 negataepl..+k7 z tyive object. What is the final charge on each ball?

  Charge is

  What are the units opieb5c3 c93 muf the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charkcdd, f6*jz7 nge is larger in magnitude thankc d,f67*d zjn the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near esqj h)l l,2ht; y*wex4ach other on an insulated table. Which statement best describes the electrostatic force between ,4etlq; hxw2lhs y)j*them?

  Two charged objects attract each other with a certain force. If the charges on v( eecw nnv ua;6ec7mk4u,t*) both objects are doubled with no change in sep7;k a(w,)c 46venune mutc*evaration, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces omo ej:84mm+g0w5b9zjvnl0 ow5)ioylb8r q f*f F on each other. If the charges are separated by a distance of dw4 )qroomjjz l e0+fbl5 yo9vnm0g8 :8*bmwi5 /3, what are the new mutual forces?

  Two charged objects attract each other bqh9rc pf8.2c 4 hz0doixes/6with a force F. What happens to the force between them if one chargef z4hx.h ios crbe9/c 0d682qp is doubled, the other charge is tripled, and the separation distance between their centers is reduced 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. What happens xgb 1llzw130y.koyx 2 to the magnitude of the force on the proto1xyobl2g1.w 0 yk3 xlzn if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance w rz6 xnr0m1..5ximq*dh*+y yq.xy raof 1.0 m. What happens to the y w.0 r +1ar6*x.. mi xnzyd*5mhrxqqymagnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated bys zqacwj0v+gx 201*flgx k.e5 a distance of 1.0 m. What happens to thvgs2j qax k1l50w*cxzf ge0+.e size 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 the center of a square. u,+hhxt, :3jkuhuoh spe*e*/ 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 fuhp,h/xuu te :*,so+3 hhk ej*orce acting on the positive charge at the center of the square?

  A point charge of +Q is placemubju4z+q sel/;mb-n (ds)8xd at the centroid of an equilateral 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 mlqe4+-s zb8 mdb;n)(juxu/ s on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is nothdmjw)4xy.r 3 a vector?

  At twice the distance from a point y fh4rut+qc/a18 wz6i charge, the strength of the electric field

  Is it possible to have a zero electric field value bet:fks,8t nsz- f*ymk2kween a negative and positive charge along the line joining the two chams2kkfk8z - sft:*yn, rges?

  Is it possible to have a zer+g)*/yel m spco electric field value between two positive charges along the lisy cm/peg+l )*ne joining the two charges?

  Electric field lines near psitive point chard ,eqqzr37l- fges

  The electric field s :pk55fvjk691cc(b qi n2 yrzyhown

  Can electric field lines intersect in free sb4tgrwbqia: +*9 uk 8ypace?

  A solid block of metal in electrostatic equilibriumqxki7dkln y.i22d6,z1u0,,hr npz pn is placed in a uniform electric field. Give a statement concerning the electric field in the block's inte ki2ldquin,,ykh1xzd,07 np. rpnz62rior.

  If a solid metal sphere and a hollow metal sphere of equal dikh5t +4 3wjnrpameters are each giveht3np k4+5wjr n the same charge, the electric 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 utn e /oo/+sg,yvl+m/,b++atnq (igrbniform electric field is directed straight upward. What can be said concerning the charge on tno/+ l(bmasgir t/qe, ++to /vg,bny+ he block's top surface?

  If a conductor is in electrostane l0 3-kg/h sj(8 5mkg.gjiiatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spherg;+2m ccj53a)r*pkr95ix wl:p rnwcxe that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abover95) w 2ppi5 gj+c :3lrmc xrxcn;w*ka the hollow sphere has

State three properties of conductors in staticw4s+ufib),a 7dvt-gnfx f 6.c equilibrium.

State Gauss's law.

  The charge carried by one elep 1dt dirz6s*1y4gv qt0y1-nbctron 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 cha3t ,vdb1uwia e5s/f m-rge of +2.00 mC. How many more protons than electrons does this piece of plastic mdbv se-aw/ u53i ,f1thave?

  What is the charge on 1 kg omrh7 (asuzfty7/m 0 3rf protons?

  An atomic nucleus has a cha2prta rnr,ioqzt1-c-3l xt*:;n qf l9rge 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 cmai;+;a ctpimt/k)sgh b :2c 2o, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric forit/ gs +m2tcp;h2;aak) ic:o bce between them?

  A 1.0-C charge is 15 m from a8-i18bupq16i n e* nsf7zgij a second charge, and the force between them is 1.0 N. What is the magnitude of the second ifne i7jpnsu8 81 gb-i1za*q6 charge?

  Two 1.0-C charges have a force between them of 1.f7ssm1 h.x3f m-ex6zr 0 N. How far apart are they?

  The force between a ,kb3iby6hrb; $30 \; mC$ 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 f3uckebfevi0dk .4/ s* orce. If they are movefs4*vdb iu.k3/0ekce d 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 *:h9uynm gu6wj1hmb4 f 8m2e bfirst 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 which acts on the cne1b* h:mb9 uj6yh2mug4 w8 mfharge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is pl-f b/f5 pv4 cwfe,b vclt5;3imaced 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 electrostatefb b5 /5vp-4c wtiv f,;m3flcic force which acts on the charge at the origin?

  Three point charges are located at the following +4lp4vh. bsy jpositions: 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 magn ylhj4+ b.svp4itude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a squarc-8u*at9q8zl td;s b gs,oy4t e, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatia-;t9ycs t48qtou, z*8 sldgb c 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, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 )lp5v+xaa kn/h65 ,6vozn0wqoq xx3ml,8n eq = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nCx+z0l o pomv5k6qn8 ,a3/,qwnna hvle5q x6) x charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 ofdoi gcgepy/ 94h7 u 0o72iy3/r fwh1= 5.0 nC is at (0, 0). What is the direction of the net force on the o4fi27dp1ghco/ 7 gi ewy/r0yofu9 3h 5.0 nC charge?

  Three identical charges of 3.0hr djx0 :f5cnk0z kq29 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude o kdrkxq9h25 f0z: jcn0f the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, whilz-hl lo72l 5bktd(*oa+(4jh-idb phch are 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 electrostaticl5dt7 h(b da-p iklh+lzb( *-4joo2lh force acting on it would be zero?

  A +3.0-C charge is at theibvb7buw0.d+va- xm 7 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 the net fobbx07m- .va7+ i wdbvurce on it is zero?

  Charge +2q is placed at the orig/3ttmm;qs 6e)o dr d y+2vj:avin and charge -q is placed at x = 2a. Where can a third positive chamq trsj)3t;ma2:d/e o+ 6ydvvrge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g :no a67tzsaxk;*hv: zxn2sl5. 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 fmw 6:a.;pfri2:j+xg:ji pke.c o 9bl xorce of gravity by the attraction of a fixed f 9:p.w 2crp+x;:mog.i 6 bjklxa:ejiproton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres ar5,+ /ewsh i v3 i*j:7yqulhptde hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apaq,d*+ :tjih s7y/u5 l3pevhiw rt 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 magnitude of the electricb( j ,q2*hnoomng6rt 6 field at a distance of 1.0 m fro62(o q*g6b omthrjn, nm the nucleus?

  What are the magnitude and direction of the electric field at a5x.xzg ox/dw0 distance of 1.50 m from a 50.0- ox/z xwd.5gx0nC charge?

  A 5.0-C charge is 10 m from a small test charge. Wz-o*ij pn:fzzf2u m; u2(i, dvd-x/ pphat is the magnitude of the electric field at the location ofuz ip(pi2x/pdjnf,f dvuoz*2:m -z ;- the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction oq*x)txik /q /)fm/vr8 c2migcf the elec qi )/)ki/*mrqt/ xvgcxf mc28tric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magogpu7,h0d p9yg+ ( hianitude of the force experienced by a 1.0 nC charge placed at the locatyhi,p ha7 (+opg dgu09ion of the test charge?

  Two point charges each have a value of 3.0 C alk)xeo- onn,hl h3 z(e5k)cl9 8e ekf8nd are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charge llz) -c khoenke8)he,e 35foxnkl9 (8s?

  A 5.0-mC charge is placed vhm.zlapij,8no+ol ,n16b/uam fs +8at the 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 tza8,o l8vf/a n+sl 1.6 p,omujhib+nmhe 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.9by/gh sr6krf9 rr-xvmy,0,d0 mC charge is placed at the 50 cm mark. At what point on a li /0h, drrrgm 6,yxs9b9vkyr f-ne joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 6hu1b3l *iqoo sw,0rblt hr-*mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between tw*o-t1bisr0 hu*b ql ohr6,l3hem?

  Three 3.0 mC charges are qogz e n(m,a5:at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at5gomn ze:a,(q the center of the square.

  Consider a square which is 1.0 m ot jkmlh8gc0m ia5l) 6-n 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);a kjim05mglh-)8lc t6 -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 ch(/h+ooinap5u 2z y9abarge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric field9n auoizah5+/oy p2b (?

  A particle with a charg*6w;. zsxk lgdj/er sbk1)kzltd 15e- e of 4.0 mC 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 maf6:4qu+j zglx ags7 hk1,t4a q/ hx2suss 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed q6g4 sj 4+k27:tuq1ux,z hashxlf/agon the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of fe0yks: rw 7-b 1)jtot-2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field? 7eyf st0)twbk: -rjo1

  A metal sphere of radius 10 cm carries a charge of +2.0 mCseyu +no8(dxjz- hl5trbd b(;dt*; 0d. What is the magnitude of the electric field 5.0 cm from the sphere's sbnr xytod5d(d (;t0s+je udbl8*; z-hurface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the 7bxm v upy:y).bia/4e7u n8 hselectric field 6.0 cm froxi 4 e7s)b87v.:pyhuu a bm/nym the center of the sphere?