State the law of conservation of electric chd ka 3o,jfuq;+(v u4bzarge.

  Is it possible for two negative xq;q gr4ug9q.zd2bto..siu5 charges to attract each other?

  Is it possible for a positive and a negative charge to attract each9hhjw3fwt. n0 o4 ea7j other?

  A glass rod is rubbed with a piece of silk. During the process the glass ro( uitf)h)ti3meu* (6ft qzs4 d p1suz+d acquii (u(4ssut )3e*fpmdzht +quifz6t)1res a positive charge and the silk

  A proton carries a

  The model of the atom showsmi(kdz ls1tf zkd0k2/a r5x/tn (p/m 1 a

  A neutral atom always :1 7t/3wlti:c wq nsedhas

  An atom has more electrons than protons. The atom oeb6 c ln,k7*dis

  Materials in which the electrons are bound very tightluq9;lvxiy+ u22azv1 z y to the nuclei are referred to +yz2 uli;zx12vq9v uaas

  Materials in which the electrons are bound very loosely to the nuclei and cmsapo* ,(bv4v1+5za hmlrv:zan move about freely within the material are referred zav1* m(v,a rv z4lpbo:m+h5sto as

  A negatively charged rod is brought near one end of an uncharged metal *qd*-co s0fo ;exgc( pbar. The end of the metal bar farthest from the cha* 0xco * ceqpdfs-g;o(rged rod will be charged

  Sphere A carries a net positive charge, and s* khm1tz ; 1o29l7a,rjvjvbpsphere B is neutral. They are placed near each other on an insulated table. Sphere B is brieflylt1*kmj zha j,71vsv r92;obp touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod c( r9gb j xnv i2rq) utx+buz/mo+2/jb1harge an electroscope positively?

  An originally neutral electroscope is briei*da4, uov9fl/i oc+doh d5/j fly touched with a positively charged glass rod. ji*c od45/vuioah ,+/9odlfd The electroscope

  An originally neutral electroscope is grounded briefly ; cm1 gymp:wmk *4c*vv3f2qndwhile a positively charged glass rod is held near it. After the glass rod is removed,dp4 m v;2fw3qg1:m *cvmykc *n the electroscope

  A positive object touchj;fg2qrs x.k 7fd +gd7es a neutral electroscope, and the leaves separate. Then a negfgdfgqk7dr2 7j;+ .xs ative 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 insulated table. A neutral me71 dh evljd.4gtallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path fol4he7jdd g1 .vllowed 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 each ball?

  Charge is

  What are the units of the Coulomb constantdp.25mjtv sy5ut5ff) $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fir6. r8cl pjg/-g 9pqvkast charge is larger in p9j.c8- apglg 6vq/kr magnitude than the second charge.

  Sphere A carries a nt i0 8qy ywrgr*2dto5own)6 5eet charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostati25 t5ero6 y)y80tq*owdwnr igc force between them?

  Two charged objects attract each other with a certain force.lu5-dm1ho.u w5w 2wlg If the charges on both objects are doubled with no change in separation,wowdmh5 l.ug 1wl 5-2u the force between them

  Two charges are separated by a distance :e-uw0cb:unu d and exert mutual attractive forces of u- uncbu::we0F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract )(g, iu2l g gjgb/)t33xaognaeach other with a force F. What happens to the force between the a(gb/g)j23tixgaogl un g3,)m 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 force is now equal to

  An electron and a proton are separat (-nq2 h6rdblhs5 .rp2 kyr)keed by a distance of 1.0 m. What happens to the magnitude of the force on thbhr- )y p 52(ed.sk 2qnlrh6kre proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance dln.*6cf .mqurmh6 mr+dwl+ +of 1.0 m. What happens to the magnitude rcm+q un+wm +md*lfh .6rl. d6of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a di8jz3/ rjpbnlh+sd q0 *z3 ym)xstance of 1.0 m. What happens to the size of the force on the proton if the elezdm+sjz xh /j3b3l8 n0qr)y p*ctron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second point cg r0* cgi zd2yl*,5objq/3gngharge 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 ar,3 n50og qd*/b2g rzciyjglg*e 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 isy7mji9ml 3j ,w placed at the centroid of an equilateral triangle. When a second ch y9m j,wmijl37arge 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 n/ iaan+v0n*ibdp 71q yot a vector?

  At twice the distance from a point charge, the strength of s4)rz:b9.ywuvdepx2i q-p5v the electric field

  Is it possible to have a zero electrty1h3 e8l;xa .lw 4e3r gu7rlpr h9l+qic field value between a negative and positive charge along the +hw q347 e8lrllrea.g 39rh xutlpy1 ;line joining the two charges?

  Is it possible to have a zero electric field value between two 5x5k3 yy)z ;hk0 a8x5 lxkkxy:jaim+tpositive charges along the line y+8yka0kxkaxk tj; zym535xi :)5lxhjoining the two charges?

  Electric field lines near psitive point hq(,vtd w10a scharges

  The electric field shf1vxsjt0-kk88qgcltj6 b e + tpd)9n /own

  Can electric field lines interse9ppmv /z6mbpd-u9t0.p6ycv2xnvwa ( ct in free space?

  A solid block of metal in electrostatic equilibrium is placed in a unifzaxymbo5 s 6(8:em 4tzorm electric field. Give a statement concerning the electric field in the block's interior. mt64 ayzm5sze( :b8xo

  If a solid metal sphere and a hollow metal s7/1pa8a6; eca.swz ;lzwzqcwphere of equal diameters are each given the same charg c/pze8zlaw s q wa7.w;16caz;e, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wox i(qlp8l i-n2yi.-c qoden table in a region where a uniform electric field is directed straig l2niy(c-p iq-.xi q8lht upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium ncqz20um4 vm gphy-x4+ear an electric charge

  A positive point charge is enclosed in a holljj/ e/xkp 4jto*sndzy 1;(8euow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has*1zp;ets8 ox(nujdky /4ej j/

State three properties of conductors in static e 8kafoz+ ( gfrj7(j1jvquilibrium.

State Gauss's law.

  The charge carried by one electbshv q96+8td3z6 txo tron 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 mp6ut 2h+ u+uncs;x .utd*-naa net charge of +2.00 mC. How many more protons than electrons does this piece of pla hx*n+u.n+ usu6-td; u2mac ptstic have?

  What is the charge on 1 kg;bcok i4bf w.hnh5)9ru un3c: of protons?

  An atomic nucleus has a chargea1v7 g(9 xp+wqg,ptob of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5tf oh(,/r5 kajg.vulh6z;ba* cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitabt( *zrk lh5v.f,oa6 /ug;h jude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and t/q,po zcfwd.f.8et s*he force between them is 1.0 N. What is the f *e.,q 8po/dtf ws.zcmagnitude of the second charge?

  Two 1.0-C charges have a force i vb,kx;as /,fkf/k y+between them of 1.0 N. How far apart are they?

  The force between a bdy(qmbmxl +,:v iw5)5pu g)q$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expe vnd)4f-s-cw; ra:ye qrience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric forcaqv):ye-w ;-sf4 rdcn e between them?

  Three identical point coa yl.-op9f;v1u+o 8z7dh wt wharges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = zt+1vd lwpa9 hoo o;8.f-7uyw50 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 +h u 8o2v/sntp7m x ky:nggt.s7w5g1:o2.0 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 forcgogmn7vxy:sh5/p1k.g82: t 7onwts ue which acts on the charge at the origin?

  Three point charges are located at the f 8r-uv-mvto 3j6(6yxwm5o- j2ln bkfwollowing positions: 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 fbw-r(j- j2vu6yvl-5xfo3n6 twm ko 8 morce on the 3.00-mC charge?

  A point charge of +Q1xj *k0m npcb:9c r2vx is placed at the center of a square, and a second point charge of -Q is placed at the upper-left c9p*0n1br cjkc:x2v x morner. 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 placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.3je.q2a9-qqs l7au5i j 0 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net forca- 9eaji.2jsq7uq q5le on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q33 0lcq ht6*v 00xgrsbvm4zg7f = 5.0 nC is at (0, 0). W0b t4rv0hg0 gqm 7xvcz3s* 6flhat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed aci(g - zvwt0 n)7ga5xto5 xlf3mj: rc9t the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic for 9nm-0axtvgw 5jc3 c5f(xt r)7 iglz:oce which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which arev.2u :w81 )zuoi9fixbtau o:z separated by 3.0 m. At what point, on a line between the two charges, would it be possible to pl8z)ux2 1:9:buu tvfiwoa io z.ace a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the owlh(8lzt p6.k rigin 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 on it is zeroplh( 8kwt6.lz ?

  Charge +2q is placed at the origit.pt zwf47k*334 5ouyg r,ylqtcpsff5 nld 6 ,n and charge -q is placed at x = 2a. Where can a third positive charge +q be placed 5 n*z,spkltp dgff35 fyuoq 3y7.4w tc4rtl6, so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tom8(+3l uu:db yc37mcximf 0natal 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 attrac jjv6 a;:yb*e1 ki7bzrtion of a fixed proton some distance above it. How far v1byb;:z7r a k6*iejjabove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads wqrlk6eia83s8qg7z7; 7u hl xn hich are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until7r3h laz g87eqks67xqu l n8i; 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 iojf p*zc1:x*27b3yox snke.mx*sg j 7 s the magnitude of the electric field at a distance of 1.0 m from the :emg3js*xf x*2xz*jpb 7oc .1noy7k snucleus?

  What are the magnitude and direzthe, 8uh (/dt2kkl 2-irun-action of the electric field at a distance of 1.50 m from a 5 rke,2 kt -/(udhzh t2ni-lau80.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the macn;qcl0:p yz0gnitude of the electric field at the location o0y:lqcc ;n z0pf the test charge?

  A 5.0-C charge is 10 m from a small test charge. Whlk 7 dnm: .wpjl--. ;u w8j;tpmsolk7oat is the direction of the electric field?ukpklo.7:w -8- pjd mmw;t nlo 7.ljs;

  A 5.0-C charge is 10 m from a small testn;.p5 g6ra wq.rjnee, charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test preg5.j.;nnq e a,6rw charge?

  Two point charges each have a value of 3.0 C and are se4ji 5zqjusfp ,/ke :rz ,rb0s2parated by a distance of j,ru0r jks5zsfp:/2 iz, q4be4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is pla b jebcm2)t)g0s*+ll tced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elegbc)0tm jls)b t+*l2 ectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sticmmkb awk46*r. +w ve+xl8t fs9k9xs 8wk 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 w9w 4mf t 6x*s8 +vlk8wk.x9mbk rsa+ezero?

  Two point charges of wgjh;+ulm7f,yu9 i2 e+3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the m h 9l muufg,7;2+iwyejagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of std dy)/pw7v 5o1luy 4bide 0.50 m. The last corner i )bo 5y/vdypl4 u1twd7s occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side.yjsj7p)2 1h bw 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); -3.0 mC at (0, 1). What is the mwjbys2p jh17 )agnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when itxk vs+8d+ovd r qva2l70;qaj3 :sx q4j is placed in a uniform electric field. What is the magnitude of this ele 8vxx3d j: 2aa +jo40+ksl7qdv;qs rvqctric field?

  A particle with a charge of 4.0 mC has a mass of689iqm, mzyb 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 is placed in an electric )6dg,(o: u e ifpusr o7eqic59k7d6wffield of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspende66):fuf o o(q7de9i sw cde5urg,i7pkd?

  A foam ball of mass 0.150 g 9,hucq, mwk+avl)3 xzgo w8w: carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the forw)w w v9zcl 3umaq:h+kxo 8,g,ce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radiuzii1z(b6.(m xc( 2 i9j btsxqgs 10 cm carries a charge of +2.0 mC. What is the magnitude of the e x (i.cmqgbjsi(z 62(1ib txz9lectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elecevk djm.n/ vfhp 8)3,rtric field 6.0 cm from the center of the spherefe)jp vv,rd /n8. m3hk?