State the law of conservation of electric ch1st3( 3uuu52 ubelkquarge.

  Is it possible for two negative charo+z-vz . gw -d b3epww (aa9v323episdges to attract each other?

  Is it possible for a positive and a negative charge to attract czyqo,2w8 xnz 0(9ww:o f+hl zeach other?

  A glass rod is rubbed with a piece of 7(dd *agjzv i(t*om/jsilk. During the process the glass rod acquires a positive charge and the sm a(dti/j(7 *zov*jgdilk

  A proton carries a

  The model of the atom sho:rh(r83d qtzd ws a

  A neutral atom always has :cz zjh xgxx168gyn4,

  An atom has more electrons thaim fst88x.q)yn protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei a q7dg,gn(zl d)l3xujjsr2l,9re referred to as ljzg dd9r( lg3q,,2uxj)7nls

  Materials in which the electrons are bound very loosely to the nuclei aodhkzk3v f7c r0765i f4 : x*cli.ochgnd can move about freelzcivx rgc:o3df7o chk7fh.i * 40 lk65y within the material are referred to as

  A negatively charged rod is brought near ongtizrrls::kbo)6.1 i) hf +hhe end of an uncharged metal bar. The end of the metal bar farthest from the charged rod wi: )+sro hg kr)ihz1t6 hfb.:lill be charged

  Sphere A carries a net positive charge, / o8*/swn-m1*wm2 mxcridcuvmn:e* q and sphere B is neutral. They are placed near each other on an insulated tab- 1w mc:mswoxne*q2m/**drv8u nmci/ le. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an 9wec+ 32kc:pysfgd0e l 6:vw oelectroscope positively?

  An originally neutral electroscope is briefly touujxm 1;m5 h hfip3k ,k.ljn4j5ched with a positively charged glass rod. The elect4jmpn l;k.j5k5h ,1h ximujf3roscope

  An originally neutral electrojizwj +h; w,z7scope is grounded briefly while a positively charged glass rod is held near it. After ;w7hjw,iz +j zthe glass rod is removed, the electroscope

  A positive object touches a neutral eln5nq 0vnstvzi3jo- .:c us83 lectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does no-n83 vl5tz .vn3sq:i0cjsn uo t touch it. What happens to the leaves?

  A large negatively charged9x op -lj.6mhr object 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 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 th r6pjo9 x-l.mhe final charge on each ball?

  Charge is

  What are the units of *tu8k.v5wtspje*+is the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largotf3jkk) n3+ j0*hsblhhz 3c:er in magnitude than the seco 30hfs+zj*hkc3:k tlnjb 3o h)nd charge.

  Sphere A carries a net charge and sphere B is neutral. The62dvt)x t3-vzw+4g;mtrc ram yk/dt8y are placed near each other on an insulated table. Which statement best describes the electrostatic force between 26 /wvda-cx;t 4kd tvtrm8)mg3 tr+z ythem?

  Two charged objects attract each other with a certain force. If the char;sl1 i6dskdgcyxv*s2p /cl+o+x 7z3t ges on botydkszo2 l x*s; psl/g+t 3+i cdvcx671h objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and s29u7 :wv o abcsn9fo :u9myf1exert mutual attractive forces of F on each other. If the charges are separated by a v nyb 1uos9fmcwuo99:: 27s afdistance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens*i4n hw g k*m1gj4tha- to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its original valueajht1* w4n - *ghmi4kg? The force is now equal to

  An electron and a proton are)kanw o3--*wj zhb6s f separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is pl fkz o63 *jw)-wansh-baced next to the first electron?

  An electron and a proton are separated byzo;n(gm. 2t*tzg2z ff ,w ujb1 a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is plaz; (.g 2z2,jt fzgun of1bm*twced next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happd.k tecro00 j wx.ff8hh((y8g ens to trch (0. jfh(xky 0ewg8o.d 8fthe size of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q ik1 xqd+ icwxw 673mrh:s placed 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 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 nx:dwk 1hrm673wqx c+ iet 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 equilj0 mmquj2lp;cbs.r, kz,s):dbj/ah6 u1s-h c ateral 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 ofmcdsjj:u6,)0cahup,sj; 2/ .1bksmlb- h rqz +Q placed at one of the other vertices?

  Which of the following is not a /v0cmi: *uu+d;.jghacg fh)zvector?

  At twice the distance from a point charge, the strength of tho qla lr5/e).te electric field

  Is it possible to have a zero electric field value bw21h1ouih:nq nke *8fv 6we -ketween a negative and positive charge along the line joining the tfkoeik:8uq v *n612- wwhhn1ewo charges?

  Is it possible to have a zero electric field value between two poi oa qzpbjouyp(h t*2/x9.(-sq4z:em sitive charges a-bq9x*o: (ztq/a p(uphi. e mosj4y2zlong the line joining the two charges?

  Electric field lines near psitive point charguxk9*zy)i g05pc2tbv es

  The electric field show-nefzh y1w )2z d.,jcln

  Can electric field lines intersect in f9t9vzu u;a wwnf,ft yw*63zo 8ree space?

  A solid block of metal in electrostatic equilibri q7przws /nau2ay:e 5e.4n2shum is placed in a uniform electric field. Give a statempanz4sen. 2r5/e:s2wq hy ua7ent concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphercwzy3sq9)onf rp-*/1 m 7o*hx)nmu yze of equal diameters are each given the same charge, the electric field (E) midway between the u)hy yo-o*p1fc *nrm7/3s wqzn zm 9)xcenter and the surface is

  A cubic block of aluminum res,0,x f . pw4ibab8mce2j7hfscts on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the chargic jpm,aef fs4 ,.bh28 7wb0cxe on the block's top surface?

  If a conductor is in elepfxy nj3q mdz613(jq ,ctrostatic equilibrium near an electric charge

  A positive point charge is enclv da:1rbm;t8mosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the el mv81a :rt;mbdectric field at a point directly above the hollow sphere has

State three properties of conductors in static eqc*j -e.6tzp ihuilibrium.

State Gauss's law.

  The charge carried by onerq ).fkmgbw/,il -5zb electron 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 hasft+j:w vn36 wg+ili- b a net charge of +2.00 mC. How many more protons than electrons does this piec ftnibw-l :jv+ w+i36ge of plastic have?

  What is the charge ono f .6 p3)oyptb/glw/w 1 kg of protons?

  An atomic nucleus has a charfg-ef 6pk jqx/)4y +lmge 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 values of 2.0 and -4.cy- hb.oda;: .gcmt0 s0 mC, respectively. What is the magnitude of the electric force between themgtosyh mc. ;0a -:c.bd?

  A 1.0-C charge is 15 m from a aheisu-((/6-:s 5isjozfruq second charge, and the force between them is 1.0 N. W s-qfs rsez/(j:a5 6iu ui(-hohat is the magnitude of the second charge?

  Two 1.0-C charges have fvias ;-fd: ;pa force between them of 1.0 N. How far apart are they?

  The force between a u71 dy9 bk227fv0jox zu*xuyl$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initialli q pbc5-c6i6oy 2.0 cm apart, experience a 1.0-N force. If they are i5cqo6p -6cbimoved 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. Tdlxn*xz rk).n si53a 0he first charge is at the origin, the second to the right at x = 50 cdxxs.*) 5ninz0a lkr3m, 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 +2.0 mC is plajjlq(m 1xj5kc8fh5-) jk : fatced at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at 8jqcjj 1 f5-j)t5(kh kla: xmfthe 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 positions: Q1 = 2.0 6rd sctsdn5q2u+ 8si70 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 magutd rn78s65 dci2qs+snitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at -yvbqcqv3 j91 the center of a square, 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 third charge of -Q ij9 3qyvvb -1qcs placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 f.)makr n 1q+m:piuq4 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 them)quqir.kmn 1:4 af+p net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0bzb 5p 0zez./r.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of thezpbz e0. /z5br net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the v jcll5r2te/. qsi( 5btertices of an equilateral trianglejt(.5tqsl /r5ecilb 2 which measures 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 x;pg9 ymv g;bk7od+,pkc5r)s+Q and +4Q, which are separated by 3.0 m. At what point, on a line between thp ;7cx5sgdbmv)p+ r;o, gk9 yke two charges, 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 atlgd5x c6+j ;e ak/3ghy the origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third chare +5l 3a 6kgxdhcyj/;gge be placed so the net force on it is zero?

  Charge +2q is placed *h)l 84nl;z;4jltfbtp tyn4hhg32n w at the origin and charge -q is placed at x = 2a. Where can a third positive ) ; tlhnlyn3njwt 42;z8fbtg4* lh4ph charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 x*b; * sie9*nef +vnuvg. 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 force of gravity by the attraction of a z ffp .;yoy51lkz)2ra x8f9 rmos)6fpfixed proton some distffm)r 2 1yf;kofszlpx .po98 r5azy6) ance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduj*g5cipxz0kvo gb0l e,4ps 7.cting threads which are 30 cm long. Both are given identical charges, and the electrostatic repug 0zjl 47*p,xv0g 5ek.ibpocslsion 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 tyi 0 j1o2r 7 4sv,qg2bepc(bwnhe magnitude of the electric field at a distance of 1.0 m from the nucleusq12vewb yn(ip2rb4cg j7s, o0?

  What are the magnitude and direction of the electric(pxjt q0e006h 0m uxm02mwdj n.frjc2 field at a distance of 1.50 m from amm0jp w jrc0uh6n0 x0j(dmte2xfq 0.2 50.0-nC charge?

  A 5.0-C charge is 10 m from a 8 g6gor3+fw zw,xq ew(small test charge. What is the magnitude of the electric field at the locatrqww+ zgfeogx(63w 8 ,ion of the test charge?

  A 5.0-C charge is 10 m from 9+k)u zcwo mp-a small test charge. What is the direction of the elezc-) wokpmu+ 9ctric field?

  A 5.0-C charge is 10 m from a small test c hgnfqqj(g-h-5m l/d/99j hvc harge. What is the magnitude of the force expef/(/dvlnhmgc9qh j9j 5ghq --rienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 Cgmzy l5 +m51gc)v/* qza uyhi/ and are separated by a distance of 4.0 m. What is the electric field at a ph/yuzgcl maqg z )+/v i1m55y*oint midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a 8 azoew;b u sh;,he6e+meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field awhe6, ab;ho+sz 8e;eut the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick andss99g2v ;9nxe( yicgi a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is thein; 2s gc9sy gx(vi99e electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placewg jq0 ,,uvn *uquj6y9d at x = 0 and x = 0.20 m. What is the magnitude of the electric fieldguj,q*jn6y 9w ,0uq vu at the point midway between them?

  Three 3.0 mC charges are at thv;yo:+ts ) z2schx)xhe three corners of a square of side 0.50 m. The last corner is s+hsh:xzvyxc 2) t;o )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 sifzu)ml)x7e;z de. 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 magnitudz) f xl7ez;)ume of the electric field at the square's center?

  A force of 10 N acts on a charge 6f*sh gch*ccie( g72 xof 5.0 mC when it is placed in a uniform electric field. What is the magcs gc(he2cfx* 76hgi* nitude of this electric field?

  A particle with a charge of 4.0 mC has a mass1 *,j n,f.t blw;pqxxtye i8r; 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 elefzx62b4hi e1 fctric field of 6000 N/C pointing downward. What charge must be placed 6bf14hezfi 2x on the ball for it to be suspended?

  A foam ball of mass 0.150 :. mhqs et :be:(hx 77oflvyo(0tx 1qlg carries a charge of -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 fi o::fx vmt7qo1l7:lhe. (tsxe0y h(qbeld?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC -af(ytr( ind*niinjdr 65jv*gf /c4-. What is the magnitude of the ela (i-t yrj(f6/n5 *4nnfirg d-ci*jdvectric 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 elegyf6s *mj:na4(fg) vtz1+ o -h5jmpq tctric field 6.0 cm from the cea+ 5nz)qf6-4m1gjypg *tfsj (oth :vm nter of the sphere?