State the law of conservation of electric cha56x9:fb z pe8byd6ed vrge.

  Is it possible for two negative charges to attract each otxm4m.vtrieos16;ve42 qr:3 7 to tbhoher?

  Is it possible for a positive and a negative charge to attract each othernu-xh* n y.w i8.tlvwk5/ 4wic?

  A glass rod is rubbed with a piece 0h;3axez prp6 of silk. During the process the glass rod acquires a posite60p3x zrahp;ive charge and the silk

  A proton carries a

  The model of the atom shobe 0 cuhzi9e6(ws a

  A neutral atom always unph6f. gll6,vy:ir3 has

  An atom has more electrons than protons. in.hmgybz;i+i/o: .h The atom is

  Materials in which the electr o7 su1iiu 9 kopimbg2:2a.v,nons are bound very tightly to the nuclei are referreg,k:siioi1o7b u29.2n ampvu d to as

  Materials in which the electrons are bound vxue (e pxvz4;x2p/np6 ery loosely to the nuclei and can move about freely within /p4vxnxue6ze (xp p;2 the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metaiv*qq(v(ys i5 l bar. The end of the metal bar fiqv *sqvy i(5(arthest from the charged rod will be charged

  Sphere A carries a net posit1ta,i 1ywb:zu:zu jv 0ive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with zt:v0 11uzyb:,juiwa a wire that is grounded. Which statement is correct?

  How can a negatively c; -w2jz d.8 bfhnvt,bbharged rod charge an electroscope positively?

  An originally neutrafmzj50n6vu4v4b3yr n0op 7ibl electroscope is briefly touched with a positively charged glass6bvfbjn7 i4o0 y 0pu53mvz nr4 rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively charge z (yzsmdm4y1mcrkt3 */t9+n z/t4 uobd glass rod is held n st4du +3kzmzc zybm(to /m ry91t*/4near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral e1kpgr lgn50 u :nb41v2n03o; eftcdt dlectroscope, and the leaves separate. Then a negativ 2104 g3;tfdb 1tl50nvkeon pug r:cnde object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an*1d jrf mc :ia2pg+g;p 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 touc g dpji+*c2pf:1;rgmah 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 r9o2f9c6(hg l)bkw0;no sg,yzj oeh5the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fir(k q*puq b;d88on)p um0tq u2fv*j:mtst charge is larger in magnitude than the seconu(:dqt*8j;p 08n)utm fu *pqobqmk2 vd charge.

  Sphere A carries a net charge and sphere B is neutral. They are placezt 4b cet,3rx(d near each other on an insulated table. Which statement best describes the electrostatic force betweet3ebc(xr,z 4t n them?

  Two charged objects attract ewb,ef9zxyf (.kjy ,nr3;fz-y 6v i cg/ach other with a certain force. If the charges on both objects are doubled with no change ikv, g;e9fiyz-,c(zbyy 6x w/3f jf.n rn separation, the force between them

  Two charges are separated by a distance d an9 i x.wsfqq)b3qwfd5 t)9p+x nd exert mutual attractive forces of F on each other. If the charges are sep 9s5) +3wxqf ) qwpxtqib9f.ndarated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hthhm)cju7m uw3/ug y8t2 xf /(appens to the force between them if one charge is doubled, the other charge is tripled, and the separation dis/t/c72 ( uj)um fhx8 3gthumywtance 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. W7gqsr-fh ln0,hz8pof tavg :l2 v)h(3hat happens to the magnitude of the force on the proton if a second electron is placed next to the f30v:htq7a,vhhlp zg snfogl )- r(82 first electron?

  An electron and a proton are separated by a distance of 1.0 m. Wqf4j5p dxxii;0-3qi enzyq ,*hat happens to the magnitude of the force on the first elefq, ixqp ynqx4*5-3zdej;0iictron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distanczn) vv nt863px9n) kohe of 1.0 m. What happens to the size of the force on the proton if the electron is mpnv9khnn8 6 3xt )z)vooved 0.50 m closer to the proton?

  A point charge of +Q is plas.rntk-yuwol)oq4wyv+ ;n :4 . j 5r puvvx-x4ced at the 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 + x5.vu u -- :rkr44nlxqsyv)ponwj otv;w4.yacts 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 1gzefd;2rpxqqp : cn, :+vkl ;fn h:h:an equilateral triangle. When a second charge of +Q is placed at ox2d;:gk1z: : qqpe nc,+r;ffpnh:vhlne 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 not a vector?g+z7nvmmip(ls he 3hc4 - q-8n

  At twice the distance from a point charge, the strn:vnbqpi91i ,i3*lb l ength of the electric field

  Is it possible to have a zero electric fieldwafudzvw54g.c q.z 1) value between a negative and positive charge along the line join. 1.wz gdca) qfvz5uw4ing the two charges?

  Is it possible to have a zero electric field value betweeng,:-p: udq nsd);q wftbeqe*8 two positive charges along the line joq*wq:un8bfqpet : d,s-de);gining the two charges?

  Electric field lines near psitive point chargopt,m w9t1p 81 depnw:es

  The electric field shoj hr5/7mfz) l 25:eg/ cj7 iydk5md3ezbdw *rown

  Can electric field lines intersect in freek+q. jn,bh8ap:fhe u3 rkp(s, space?

  A solid block of metai2m(lh0 dzi e-l in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's intml2-0edi(iz herior.

  If a solid metal sphere and a hollow metal sphe9s7 1nbft9jn xre of equal diameters are each given the same ctj 19nxnsf97bharge, 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 d 1ep k9t01j y/cw6enfa uniform electric field is directed sj k/0yed f6ecwp9t11ntraight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric cmzp8((lf 6biu harge

  A positive point charge is enclosed in a hollow l6w, esoq22(ybt8;ukr* gb udmetallic sphere that is grounded. As compared to q b;t uydw,g8k(*u bsro6e2l2the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in*gl; a2na1jgczzoj5 4 static equilibrium.

State Gauss's law.

  The charge carried by one electron is, nwcv*x2dh;6n5thz u $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net chargekyj9q - 049-xgak hnf9 bx.-z*bhbhdm of +2.00 mC. How many more protons than electhdj0b99z bxh -g-xa- *kb.94mq khfynrons does this piece of plastic have?

  What is the charge on 1 kg of promw1y bcksbq .*;-2tlsnat6: btons?

  An atomic nucleus has a charg,dtkbfqdry3+ 8f-if :e 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 valuej+xke/ ( 2zvk9wxh;rncgc:s 7og;2g hs of 2.0 and -4.0 mC, respectively. What is the magnitude of the e c9k /gwgj2rk:n gx7hv 2s hcxo(;e+z;lectric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 Nye/3 ik27tab(mv rw8q. What is 73y2q (m vwtrkb/aie 8the magnitude of the second charge?

  Two 1.0-C charges have a fovln 6 ;9inw(nsrce between them of 1.0 N. How far apart are they?

  The force between a 3i (;g k ppgiz swjclb-1v0k:-$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienc5ql6aung 1-m ye a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electrul65n1agym q- ic force between them?

  Three identical point charges of 2.0 mC auy jfyq(276m. rj jfghha(qii560ro(re placed on the x-axis. The first charge is at the origin, the second to the rjqj5 0yjh(.72u( qfy (arg66ihrfoimight 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 plac dgw 7369deyn;zmxo ix4u()+if g2dc ted 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 w dz (tegx +n3d x fd9cg7myouii24)w;6hich acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = ;a;m/(jq)yz z dk n) xhcrjz/: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 mak; (zr jmczj/nd)/qzy xh;a):gnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a sadzn,. p*tx/+kvy,i 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. Whaxkvt*a,szd+ /i n. p,yt 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, 0.10uu;b*, xto8dfc6t a.2apq.ua m); Q3 = 5.0 nC is at (0, 0). What a8 tp2 t*uf6abaud.xq.o,;ucis the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 4/dl7ev:+b ms9s uk kvm, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the divmbk+ sks4v d:l7eu 9/rection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed atf00/s4 mfgc/xmdmc hr70spq * the vertices of an equilateral triangle which mea0mp m*7/ gcdrs sm0xcfh4/0fqsures 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 a.fe0z: /j;il3d gbz0o /yoc fare separated by 3.0 m. At what point, on a line between the two charges, would/jobagf:l.3eoiz0;z fdy 0/c 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 orib b *bpmi c80iea 7ea(m(--/ckhzi a0sgin 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 force m/i0e*p-(zi 0c (ehc a8-bbmi7a asbkon it is zero?

  Charge +2q is placed at the origin and charge 5-;zgzuhedp8d)a 1 cb-q is placed at x = 2a. Where can a third positive charge +q be placed so that the 85dh pdz1 ;a zge)bu-cforce on it is zero?

  A copper penny has a mass of 3.0 g. A total of +b;0mpem u: w*e-q(zx h+irwh $4.0 \times 10^{12} \; electrons$ 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 qoj60 gvke.o, mpna;h:k8y 9 bthe force of gravity by the attraction of a fixed proton some distance above it. How far above ngv9 ;mo60h:oypqeka b8k.j, the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting tbmts(i22e x;.ik9qnb7 j ;sev hreads which are 30 cm long. Both are given identical charges, a. 2kxi2(js7 mte9 b;;bsvqeinnd 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. Wo eof 6.a3htth2xn.,wj9o.: kk4oekb hat is the magnitude of the electric field at a distance of 1.0 m from the nuclkoo 2nxe:jh k.h.a,4ke o.t fw b36ot9eus?

  What are the magnitude and direction 8*ve.de 9c inf*gwkg :of the electric field at a distance of 1.50 m frk c8fg9gei*.nwe vd*:om a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tesihld;u2d7+ ;px 4rptc t charge. What is the magnitude of the electric field at the lod 7xlc 2itrpu4d; ;+phcation of the test charge?

  A 5.0-C charge is 10 m from a smf-: xbk+pa46 l1(ge)*gs c2lf fffi foall test charge. What is the direction of the e(aifg21obfc:kg lef4* f 6f)pfx-s+ llectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude d( z1ava( )6/h:bjgboei 9kvp of the force experienced aobvij1zd 6 k:agveh 9)/ (bp(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 disto 9. 96h9e2xut:kjstz pe5nbkance of 4.0 m. What is the electric field at a poin.6ehpbe jx29 knok99sztu5: tt midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.p. +eu z8vwt)p*l;lbj a)n.kt 0 mC charge is placed at the 50 cm mark. What is the electric field at the 8k+vb .pjwp.e;))uz tt*laln 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC cha;n6iiy6 qf xh+*v1sqfrge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?if+6q*1v y;inh s q6xf

  Two point charges of +3.0 mC and -7.y-vu/1 /wsa szaj:2oy0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at t :ya-a j ovz2ssyw1//uhe point midway between them?

  Three 3.0 mC charges are at the three corners of a square d j bur;jphz3gc)5 h1*c)bfw)of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find g ru1pjw*c3bzfhbh);jcd ) 5) the electric field at the center of the square.

  Consider a square which is 1.0 m on a sid/w(/gv/rj t p260vwk8dc ihoqe. Charges are placed at the corners of the dr/p6cjg2v (/8k qvwh /iw0otsquare as 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 a charge of 5.0 mC when it is d1fa7um;t2f4b 1h trvplaced in a uniform electric field. What is the magnitude of this electric tf7f1t1u4;avb2rdh m field?

  A particle with a charge of 4.0 mC has a ;: pxu y3c:dlfmass 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 6000 N/Cu06u 0ui 8smbw pointing downward. Whats b0 86umu0wiu 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.1(/2kl jhhuqs09 brdm 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 f0 ludjh1(s h b/k9mq2rield?

  A metal sphere of radius 10 cm carries a charge of/f2 sge ei0q9s +2.0 mC. What is the magnitude of the electric field 5.0 cm frfes/902 i eqgsom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. hxm b1-0uy(r c What is the electric fieh -rucyxbm( 01ld 6.0 cm from the center of the sphere?