State the law of conservatij/- 0acoldvj6 on of electric charge.

  Is it possible for two negative charges to attract eaohl .,c/idhc 0ch other?

  Is it possible for a positive and a negative charge to attract eachyssfq/37 6piqtbp(t7 other?

  A glass rod is rubbed w7v;pfdjb 9 0l) msh8qrith a piece of silk. During the process the glass rod acquires a positive charge and the ml0bfpv 9sd;7rj8 h) qsilk

  A proton carries a

  The model of the atom7 e sv mzngzmq-e2d-*8 shows a

  A neutral atom always bv bc6ec7;q. phas

  An atom has more electrons than protons. The atoc wam(s yap4..m is

  Materials in which the electrons are bound very tightly to the nucd37ijtk05m7f43v r jc os x.,dx3evvvlei are referredf,dv i. j3 k07 e7xdvj4vrvo3sxct35 m to as

  Materials in which the electrons are bound very loosely to the nuclei and ca5cr qf)ta 756ckgu5sb0d 6xot n move a 75g6 dcfu)5 t rx5bos0qtack6bout freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bart90qnsn: gd 9e. The end of the metal bar farthest from dgnq9ns: 9te0the charged rod will be charged

  Sphere A carries a negnt 0wqr-wj r6;2*pz6:jgrs xt positive charge, and sphere B is neutral. They are placed near eac6q;6 ptw:rws0 z -x j2r*gnjrgh other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscelyp3q*r5d-( / lxibzope positively?

  An originally neutral electroscope is briefly touched with a positively charged omxdq8;d8 tm53z x1hj2dxz/q glass rod. The elecqt8 m /xx38d25 ;hzom1qjdxdztroscope

  An originally neutral electroscope i tpkdqb-qp5),s grounded briefly while a positively charged glass rod is held near itd)q,-pq 5 tpbk. After the glass rod is removed, the electroscope

  A positive object touches a neutral tkj30wup odahk33hs/2 bx;o8 electroscope, and the leaves separate. Then a negative object is brought near the e/uhw 0a8d;j3h oo 2tpsk33xkblectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged obnv9sa/t4r s-x ject is 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 balsr-n4ta vs/x9 l, 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 constant 7f d/eij p-)bn$k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fjzs29wd c4iu0irst charge is larger in magnitude than the second chargs 9wc04idjuz2 e.

  Sphere A carries a net charge and sphere B is neutral. They are pl+ c8 gvzxc-uiqzg s5qs(cwd -a,p47t:aced near each other on an insulated table. quqcc -c7v4,z:sgdts z (5w8xpg a +-i Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain f an 58ud2erwo;orce. If the charges on both objects are doubled with no change in separation, the force beu; n85wd2o raetween them

  Two charges are separated by a distance d bk-waxu+ganh(u6d( kzb0+)h6 -m. bx w ,xb qwand exert mutual attractive forces of F okmah-(dw , zbawu xbqn60ub+w)(.kh b+xx g6-n each 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 yg;5el+ 9 qewua force F. What happens to the force between them if one charge is doubled, the ly5u q+g;9weeother 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 distancef9 u-cybpyw+) of 1.0 m. What happens to the magnitude of the force on the proton if a second electrony+p9y)ucfw- b is placed next to the first electron?

  An electron and a protoixo ;)va-qkah, axs*jy, -a n4n are separated by a distance of 1.0 m. What happens to the magnitude of the force4 )yaah,saqj*kanx;-o-i ,vx on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distavc941 b(at0b oas1sjqnce of 1.0 m. What happens to the size of the force on as 0v scb1bj49(1aoqt 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 squarm)p5r; j3iuy y kiz+i: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 oth)yip;uik:i3j rmy z 5+er 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 p)k fw wb)i03wulaced 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 on the center charge due to a third charge of +Q pla)03w wi)ufwk bced at one of the other vertices?

  Which of the followi(mta h,d2npf+w(/ -jb8cze teng is not a vector?

  At twice the distance from a point chargebk5s; h3ahi5d , the strength of the electric field

  Is it possible to have a zero electric field value between a negative p2 6e3isrie a4and positive charge along the line joesir 3264ipae ining the two charges?

  Is it possible to have cqwe(v 2z*c:zcw p7+n a zero electric field value between two positive charges along the line joining the twzw*+ :pn (eczv 2c7cqwo charges?

  Electric field lines near psitisaq 3b6y,x nt)b09pvese om k2.a 7ju3ve point charges

  The electric field showntpvdqkz,ve+)*28la ;bwn/m)1 uj jvu

  Can electric field lines intersect in free spanh.85i qwobdlp-n j121 wa3 gheyj45rce?

  A solid block of metal in electrostatic equilibriud4v3 s t.:mfzs:o cf 7vgoz-5ym is placed in a uniform electric field. Give a statement concerning the ef 4c:7-gzdvm szs:3ot y5.fvolectric field in the block's interior.

  If a solid metal sphere and a *y77figtp6s34 hkt9um fb-eu hollow metal sphere of equal diameters are each given the same charge, the efs7fu7u93*4 gt kpmi te yh-b6lectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region39tfb8.fp9 v* aboxed 7jl i/q where a uniform electric field is directed straight upward. What can be sa l oa.i9jv t*fq9xe p78fbd/b3id concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an y;1h)rwp/ 9)4k dk 6k(aszka+asqb r selectric charge

  A positive point charge is enclosed in a hollow metallic sphere th*;umhh2rh ,ww at is grounded. As compared to the case withou;u wm*rhhh,w2t the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrffc+-wx;xi( + o ;y-yx (scmjtium.

State Gauss's law.

  The charge carried by one electrznkd:tt (qm c 03w3m1uon 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 charge of +2.00 mC. How manpqe nm6efi,k6gpw9+kg (k +g; y more protons than electrons does this piece of plqg+p ke+ m6gi wp(,9 k6gkfne;astic have?

  What is the charge on 1 kg 65ieu3jnpl0s of protons?

  An atomic nucleus has a chark8m7k)z a5 h8iw* ghlwge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separatejev kc0yzlam3 1x3 sh :ad--qnv1,zcx gg-,m6d by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magc1:a0nq kl x1a,mydzz--hme3s,g xv c6 jgv3-nitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge9ng6y75ayddj5qsn g 0, and the force between them is 1.0 N. What is ys 5n5q9gd njy0a67g dthe magnitude of the second charge?

  Two 1.0-C charges have a force between thyc.o)dq 7c i-tem of 1.0 N. How far apart are they?

  The force between a 9 *ijoax;yx p( 6 t;wx5elfj1d$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, inioqm 7a)8b5 i5o ctntgq2ycz1/ tially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what isq55 cz gao1 ym8nb27t o/)icqt the electric force between them?

  Three identical point ch)d xyp4 2k0gpmarges of 2.0 mC are placed on the x-axis. The first 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 whicyk2p) m0px4 gdh acts on the charge at the origin?

  Three point charges are pljn1n7rb ys.( eaced 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,e1 ( jbrnyns7. and +4.0 mC 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 located at the following posiy8k;t(cg 1 8ewye cuw:tions: Q1 = 2.00 mC at x = 1.0(c;e:8w 1 ctw8eyguy k0 m; Q2 = 3.00 mC at x = 0; Q3 = -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 placed at the center of a square, and a second poinxo t;k3,9ib git 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,ibxti ;g39ko 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 (0.3*e-jfq5)pqylq gg xd8p:*)g z0 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magn*xey d gpgl)g*q8: 5 zjqq-fp)itude of the net force 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); Q3 = 5.0 f ks +-2i(x2q5b nl,ec,t+tmr nblni: nC is at (0, 0). What is the direction of the net forc -nf cir2+it:2nnlm+(b qlbe 5x,skt ,e on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertb a)zoi e3 :06jbg,zebices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forc0 o eiazz g)b,6b3:bjee which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m.j-es*pe9n9es At what point, on a line between the two char9 ee9e jss-np*ges, 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 = 4.0 m. W(7 veoe7j-z.v gvv5n phere on thenvv ze 5 og.7jpvv7-(e x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x =trbcmc190k;h q2bl +c 2a. Where can a third positive char c1kb bmht9;c2cq+lr0ge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 ug-c0e*c3fxd t hfz9; 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 txarc9s(wlf7r 5 /n tz(he force of gravity by the attraction of a fixedn c ( xrt7/9as(rwzfl5 proton some 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 gut(*:hfey/s46ijp0 fg5 haothreads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads i 6ousf*hi :tg(a/4 hgpy5jfe0 s $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of 1 i8ilu0f u dmnq17ojn;w1jj,+40e. What is the magnitude of the electric field at a dij ud8 q1fo01,71nj;inwmu l jistance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fieldbd/4 gg-pe 1ay: q;y8(ws lvxo at a distance of 1.50 m frodqbyvl8 w 4ggo/px:y 1a-e(;sm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudeax op0lt + 9i37bw/eda of the electric fiel+il 7pdea0ox3 /abwt9d at the location of the test charge?

  A 5.0-C charge is 10 m xw69ww1 nzj y/u)d1(/fy py ejmrv. d(from a small test charge. What is the direction of the elecyxy y).d9/ (v6wwpwfjrnjz1m d/e(u 1tric field?

  A 5.0-C charge is 10 m from a small testx-un8d7( y; svddokzjwa b,-5 charge. What is the magnitude of the force experienced by a 1.0 nC chas-jo -,a;ybdvzk d75d8ux(wn rge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C a ,dzned:-mx ;qb-yrx)v +awd (nd are separated by a distance of 4.0 m. What is e,ymnqzx ) daw b;: xr(+d-v-dthe electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at t, zm*35d ih)czm-pj(kyvcn* bhe 0 cm mark of a meter stick and a -4.0 mC charge is placed at thdm)vj z m izpyc-*5ch3 b*k,n(e 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chargj o l:h/hojo yhuzgw45a37r+1e l/w :z4+oa1gjh h5ru37 oojh yis placed at the 50 cm mark. 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 placgn l98/ mgrlavo u1s: jovi7:)ed at x = 0 and x = 0.20 m. What is the magnij9vim ug)8la1 r lvo:/:7ngsotude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thrrk y,0sn:x(a2 ; jdmqzee corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thx2rdaz :q0 ,sy(jm nk;e electric field at the center of the square.

  Consider a square which is 1.0 m on a sideu-j s -g5h3ook. 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 magn-k go5-3o jshuitude of the electric field at the square's center?

  A force of 10 N actsdvbbl y.)h erqel;khh .9s(70 on a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of khy.sbd 0 ;qh.7leeh)lvr(b9this electric field?

  A particle with a charge of 4.0 mC,;/ m6bnv98ld7zy*a5helqtj : ru a mh 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 mass 0.120 g is plar5l4j *sc0af3c k4mhu;1kyryced in an electric field of 6000 N/C pointing downward. What charu0yc4kmkj3fa5rr y; *lh4c1sge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge u8.l(zb0x5f voxdsj( (zme l33( rcdvof -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. Whatoducx5bj 3v(z .8lz rfe3(0l(xds( mv are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge vpv,9ah.ap + mof +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's+,. p 9mahvvpa surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What y+9xzuigr+ f6)j g,5wbq jdt:is the electric field 6.0 cm f,6zgr jxd+9q)g:jb iu +f5ytw rom the center of the sphere?