State the law of conservation of electr d/ /+.wd(kq p-. kpxwqd r.lligzht)6ic charge.

  Is it possible for two negative charges to attrcwhpx1*7( v ub f025kvuguf9t act each other?

  Is it possible for a posi bzs1* yy.h4 le1 8+o:z2x5s kovksznitive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the processu9+sj 8n hx qjmlre02q-jv-btne.62s the glass rod acquires a positive chaevhj-nulqx 0mr+2698jesjqsbn-. 2 trge and the silk

  A proton carries a

  The model of the atom showslf2qv0 tkh i3iv7t (t)j: wb)c a

  A neutral atom always has ptx3wriy wec899a: 9s

  An atom has more electrons than 88 a6h: z 3xs5nz5k+svpxuij2iab*zo protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are referitjoqq+* x6l 3+ ;gjdnrejg ino+*;q d3+6xj qtld to as

  Materials in which the electrons are bound very loosely to the n62b,upl- dgdiuclei and can move about freely within the materialdpgi bul,d6-2 are referred to as

  A negatively charged rod is brought near one end ofrquf2qw3+9m cp hs o01 an uncharged metal bar. The end of the metal bar farthest from the charged rod willspmhqr9qwcu20 o 13+f be charged

  Sphere A carries a net positive charge, and sphere B is neu8th 0e 0eoub4fth(j s)+,mr sutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which staoftehhm0(0s, )ertj+4 uu 8sb tement is correct?

  How can a negatively charged rod charge an electroscope posi qmkiyt rz:,lfe y,o;n p0,a/(tively?

  An originally neutral electroscope is briefly touched with a positively chaiqbd4+ r5 mz8u8uslzg,la3 2 c*h3bdvf6(zyirged glass rod. The electroscopv, z*h83zlf 2bc(gs i r4azbd3 uilm6q5y8u+d e

  An originally neutral ,qy+y;e( gs0sy7hg bci kz-)yelectroscope is grounded briefly while a positively charged glass rod is held near it. After tb,- 7qsk)s+g;zgcey y hy( y0ihe glass rod is removed, the electroscope

  A positive object touches a mz/ahy91 n b.tneutral electroscope, and the leaves separate. Then a negative object is brought near the electroscopea. m yh/ztb91n, but does not touch it. What happens to the leaves?

  A large negatively charg8h9 xoz28fc)zyh slg.y6qg+ bed object is placed on an insulated table. A neutral metallic ball rolls straight toward the objectb hg86oys+fl8)z9 hqxy .gc z2, 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 each ball?

  Charge is

  What are the units o xag+k:9 rtj;sf the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ipkapn97go ),orifn s( qd czrxc2+f6l p*4+3 xs larger in magnitude tha sc rz k9nq6cir2)4 nfog,dl*7o x ap(+3xp+pfn the second charge.

  Sphere A carries a net charge and sphere B is neutral. They g1 g-y5p e+/u4epwdxk .gu vx5are placed near each other on an insulated table. Which statement best describes thxe-e 54py.uug5/pgk+ xgv1wd e electrostatic force between them?

  Two charged objects attract each other with a certai t(qqhner6 (x nw8xn*3n force. If the charges on both objectt q(x83 w*rn6eqxh(nn s are doubled with no change in separation, the force between them

  Two charges are sepanezt4f/: :nu * uqewf;rated by a distance d and exert mutual attractive forces of F on eew* e;ufnq4:fn:utz/ ach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Wh8lx j7rvv9jb *lp 6u(gat happens to the force between them if one charge is doubled, the other charge is tripled, and the separation dista ujpvr*6vxlg9jb78(l nce 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 7spsr1n uxa6 qztuf8ym8+/ic 0;gey + distance of 1.0 m. What happens to the magnitu;z06 tgruq af pnu8y/ +87y+semi1xscde of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What ha8c erqce8d 1hnribks-77w4 w;ppens to the magnitude of the force on the first electron if a second elecdccn rw 871sk8bh- ie;4qe 7wrtron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What (d)6g(pawrbvfe4fc5b59 shbhappens to the size (shrbf(gc bv5e b p5f96w)d4aof 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. ; iivu-.tbkdjvrdi6f-: *0 aq 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 squar6djut;-*kf 0 brqi- d iai:v.ve. 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 equilasp4e)fwy e*l . 0vm.gf2t3w26y( rwilazg z5 zteral 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. Wham4v ylwz rw(.3gzl*2pi5ge0aft 6 z2efs y).wt 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 followin( jig/ e/6t .v.nvhuh+rluu1k g is not a vector?

  At twice the distance from a point charge 77153 x5wb7qccogaxi 4e hjbk, the strength of the electric field

  Is it possible to have a zero electric field zsb3( ;rfhg k2value between a negative and positive charge along the line joining the two cha3z f2br;(hskgrges?

  Is it possible to have a zero electric field value between two positive1vn v+iaca 79hauv,ys0r(ii- charges along the lin( 7av u-iv 1 9hacysrvii+a,0ne joining the two charges?

  Electric field lines nea42 5v0ds-r blez(6diwufs2 4u* wypjar psitive point charges

  The electric field shogff95-yyao1y wn

  Can electric field lines i+dh2,cptpcy1 g t4m k6ct xxld5e. -k8ntersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a unsltuf5 q+(cx)j2 pd6y;i j c.liform electric field. Give a statement concerningd+tiljy q x5.l(2c6jpcs) ;uf the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere0laqt a 1 yz55w3mdtk-74k ve4tf7dqq of equal diameters are each givevftwqztq7 7 ka -de04l5kd y54 mt13qan 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 kh)a3+w- aizc a uniform electric field-a) zhckiaw+3 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 an eleqvh6k47x j7 h1f4a asjctric charge

  A positive point charge i08 zur; w7 rallzmqg;apy.a;ccr058 os enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field aocgz8 7 0 a;zpcqwa;r0m;lr .8u5yr alt a point directly above the hollow sphere has

State three propertie/jjxk9/3auombw fy (n8w nqk0cf :)o3 s of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is * :dn/ cxutfrkhcx40*$e = -1.6 \times 10^{-19} \; C$. 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 proton9. .xj;asjhz+xlk n 2mcc:ixc83 xp;is than electrons does this piece of plastic .cxj k;s: hxm+c8n; 9ci. pz3a2lxxjihave?

  What is the charge on 1 kg of protgp-b yb/zlq v;xu 8q/2ons?

  An atomic nucleus has a chayb :von e9e972yg,9,hbwscl crge 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 cmtut6h+9-d;pbh 2,zwez ,mhq t , have charge values of 2.0 and -4.0 mC, respectivhzp m-9ew th;+t6b2h,q, tzduely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m frqu76tqf+ag *x * yxc1x3. zdhgom a second charge, and the force between them is 1.0 N. What is the ft7x dzugh31cq+x qxya.*6g * magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Hoblmwk/nil h*iz+ z29n; 4: hyvh)5 b hg1oa;blw far apart are they?

  The force between a ;p :o7.io3 h la1nftj41r 0tpcl :xqzq$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallyg7nbf.pw 018lx)1 3hw zgpeke 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric pzlxwe0 .p)fng8e1 317bk hwgforce between them?

  Three identical point charges of 2.0 mC are placf h.cvjn 3zy*:, 6la ne4gbz51pv2hqaed on the x-axis. The first charge is at the origin, the s ,vz6f4a1hbh2q* e3.c5pyznj :lgvnaecond 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 charge at the origin?

  Three point charges nik-t;be -ydo7 s2vv2are placed 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 magnit-vt;7 2 o2 nkeysvb-diude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x = zk *uc-2+jh fh1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is t* k-hc2ufzhj+ he magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a s pznf(-cff p+eb9u y9fo+ i9q/quare, 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 the force that acts on the center charge if a thiioppf+b yn 9qf9f/u-e(cz9f +rd 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 =hf*ywcuu gv w9 owtz2 7u2,,k. 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0tw,gz9uhu,.voy wcfu 2w 2*k7 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC ise ua3xedyml3h8 y/-8 jhaa i58 at (0, 0). What is the direction of the net force on i/m-8x8eja5d8hauy3 el hya3 the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at thep1 rash2iaec12v yl2q42-c l f vertices of an equilateral triangle which measures 30 r ficalcay2l2 s1q-4v1 22 pehcm 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 are separated by 3.0 b z,0fjlvkx*97m qqo) ns 9w0jm. 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 be zer*n 9swx0qf0, b 7 mk9zlojq)vjo?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Whereycy1vw d n-2 rumkc9+; on the x-axis can a third charge be placed so the net uyc -y w92kncdmr1v+;force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. W +f +ioq gz xx+z418jb92vfwal-xor0o-c gu7p here can a third positive charge +q be placed so that the forceaoz 982xvfx-jwq4xgf7+z pg1+uircb -o +0ol on it is zero?

  A copper penny has a mass of d u+,gfgju0g 63.0 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 against the xuj)qwy ji1fdf 0p-*8force of gravity by the attraction of a fixed proton sofpx*w0 18i-)jqfdyuj me distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thred) (gwh2srp8z sv3 h.ymx. ev9ads which are 30 cm long. Both are given identical charges 9vr 23pm8sgx.we(hdh. zy)vs, and 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. What is the magnitude of the ln4u ka 4 904ocsd035sqfusocelectric field at a distancen 04dcous09qoucak f4s4 ls 35 of 1.0 m from the nucleus?

  What are the magnitude as8qr 6lf ;pty3bsiu 4j9z7cf:b6 no b)nd direction of the electric field at a distance of 1.50 m from a 5syqi4l;6fjo7 n): sub 6 zt38bf 9cpbr0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is tdgvo p i1j0g(jwn() 0uhe magnitude of the electri(wndp0o( 01 gj ji)uvgc field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chyty0 t7sw m3+aarge. What is the direction of the el +t3myy07wstaectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the iw35 uofa7,rx*j q+dq force experienced by a uf qo3 id7awr*q,x 5j+1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and arez*1xr c1;bj u4bq9nca separated by a distance of 4.0 m. What is the 19bj*cc;rx u1zqan4 belectric 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 anw)d gs0 :xed8 fhgn*t.d a -4.0 mC charge is placed at the 50 cm mark. What 8txw: ed)0gnf* .hds gis the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the boqt9bb 7 z zsnroe69591oo/ h0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm markzo o1 9b975e69ot zronbqs/hb. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are pl2q 2 3rczwm3p cq,d*9vjua0cfaced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between themcpf cz,wuqj3230c d2rvma 9*q?

  Three 3.0 mC charges are at the three corners of a s)8ryxdp/6akz z 6zad+ q0uh(e quare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the squap6h8ek dqa/x(ryz +)06dzzu are.

  Consider a square which.rh9zukn6alae t * ;.zyl5;vs is 1.0 m 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); -3.0 mC at (0, 1). What is the magnz.y;t;le*6 r nv9hzak.5a lu situde of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is5s5p fljn6p 0g8-o bmc placed in a uniform electric field. What is the magnit6jcg 8sp p-ml5b5f no0ude of this electric field?

  A particle with a charge of 4.0 mC has a mas*wa 9tf z 2d/hv5fwto:s 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. l.gu gso4 ,nw,1c(zkq120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it,l4q.czgu sko( , gn1w to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.0w-o/u)wyg(j t3 h9nltjr z++t0 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. hnr/t w t+olj9)w tyu-(+z3 jgWhat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. 3(c5 m5 t,waza.kgeagc4,wao What is the magnitude of the electric field 5.0 cm from the spher,.agmtka5a cz w (4e oa,c35gwe's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mCe.j;y:zrd* m m. What is the electric field 6.0 cm from the center of the sphmrye.;dmj*: zere?