State the law of conservation of eld0*umv--g/qa 5aq atlz4e.re+/ix t xectric charge.

  Is it possible for two negativ*9nltyjrow+kvi1 y 83e charges to attract each other?

  Is it possible for a pon )uj x3d,/h(be0jwslsitive and a negative charge to attract each other?

  A glass rod is rubbed with a piece ofkz( fqdsgg.9 oc n+7(u silk. During the process the glass rod acquir. z(fc7k( uqo gsd+gn9es a positive charge and the silk

  A proton carries a

  The model of the atom shows3-tsmbzr2 n,fa4sueyjnx(* g2z2 is; a

  A neutral atom always vi kxfpflq;; 8ttm,.1 has

  An atom has more electrons wu 6 p1ces+cu)a3dsq(than protons. The atom is

  Materials in which the electrons are bound very ti 85i):,i frnt(jah5(tblte aoghtly to the nuclei are referred to )itj ,bf5e5tnlo( :ah(8riat as

  Materials in which the electrons are bound very loosely t9nztyyfa: 8w 95cfh/oo the nuclei and can mof8cy:nfo9yw 95az t h/ve about freely within the material are referred to as

  A negatively charged rod isc*w0s oins.u jpg-ig, 7ety74 brought near one end of an uncharged metal bar. The end of the metal bar farthest from .in0p7ycjst*s74 w uoge-,ig the charged rod will be charged

  Sphere A carries a net positive chargan2s47ki8 lecawj2 60*n:wns hzp) jue, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounahu72zjc j2n6*p 0i:sk)ln 8wswnae4ded. Which statement is correct?

  How can a negatively charged rod charge an electroscoesfosr0n) j 73kfn -ktyc -j2:pe positively?

  An originally neutral ele)v:xts+6u u umgb 362 to(yctrctroscope is briefly touched with a positively charged glass rod. The ele: svy6)ut3uotucb+m26 x( tgrctroscope

  An originally neutral electrl upg9(ie/;4/e y upvaoscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is r/4 iy;eupa(uvep lg9/emoved, the electroscope

  A positive object touches a vxzg.o44 +7wzrl7qtp0:j 8fy b9g qiyneutral electroscope, and the leaves separate. Then a negative object is brought near the el4w 49g .v0r g:t x87yzpjq7iybzoq+l fectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A nefcg9p*p1s(w futral metallic bc (s*pf9gfp w1all 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 the final charge on each ball?

  Charge is

  What are the units of the Coulomb c1 ppvt c5/sq+zonstant $k$, which appears in Coulomb's law?

  Two charged objects are separategul+)b3qcrrn: c1z)kt*dy 7g d by a distance d. The first charge is larger in magnit7cc*)l 3y qdz1gk+bt:gr )nru ude than the second charge.

  Sphere A carries a net charge and sphere B 6iy9yx22-bjj(j 0 f nlmvjtw 1is neutral. They are placed near each other on an insul6y t2 1-l0v(n29my jjf bxijjwated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the (guyd, afy4h ebyx.xt.8sv05a,mf m6 charges on both objects are doum afy.,4 56dbe.0( tvg mys hxuxy,f8abled with no change in separation, the force between them

  Two charges are separatedyfgp;qh;z2 2k by a distance d and exert mutual attractive forces of F on each other. If the charges are separatq;fzhy; p 2g2ked by a distance of d/3, what are the new mutual forces?

  Two charged objects attregad (+jeo f04 fs(i, :sbdc*5qsatev )g +;rhact each other with a force F. What happens to the force between them ifb f0,s hr*a 4e(dfq+e) +(jav5:e;tsdgsg io c 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 pro/sq oes;cxn kgl u4v55,u,; wzton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the pro /4u5 ze,sw5 nsvu;oc;kl,xqg ton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a d f( z t:a-/w7skhf,.c)zxqbh ub .7mmbistance of 1.0 m. What happens to the magnitude of the force on the first electron if a second q bfa ,mxh(s/ kw7u hzf-)bc:tb.mz .7electron is placed next to the proton?

  An electron and a proton are separauy -6e;cfh *nsx h i,,snt 9wxcu5t,w4ted by a distance of 1.0 m. What happens to the sh9cwsf-t6s t 5c*x e,;,yui u4hxwn ,nize of 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. When j + l-k.r(,2f5ma-elvyf tco la second point charge of -Q is placed at one of the square's corners, it is observed thamo5-( kj.ta,2 eyvl-+ ffllr ct 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 net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the ceivmob7:pw v,90l; gumntroid 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 thatu,owm bm;v 97i l0p:vg acts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is nog:oe 2op;+7 ajg1borig3h4k jt a vector?

  At twice the distance from a point charge, the strength q2 ce 5qfv4.bpof the electric field

  Is it possible to have a zero electric field value betwe1c6kb vi .n,-t5 3fc 5.otknlw4imuxlen a negative and positive charge along the linltbwc6xv i5.tinc4,.uok -k fm3l1n5e joining the two charges?

  Is it possible to have a zero electric field value between two posi 1; d* e. hqdpvdb:4bq0ylydq6lmhc92tive charges along the line joining thy;bq0q*d hqedvlh : 41db92 dlp 6mcy.e two charges?

  Electric field lines near psitive 9mffy y5 x57qewmd.z:point charges

  The electric field shjsf tj+w 7y;ap()+vatf0wy 6t fo 36vuown

  Can electric field lines intersect in free spat-cctq9gw8gevc 0: m 9ce?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ebn2 gb n5e (1bszohk/;lectric field. Give a statement concerning the electric field in the block's interioh(bneo2kg 5bzs ;1 b/nr.

  If a solid metal sphere and a hollow metal sphere of equarv5fb9pmoz:2u11 8 cfvhl4d hl diameters are each given the same charge, the electric field (E) midway between the center and the sur4v2zrff1 u dv8b9c lo5 hmhp1:face is

  A cubic block of aluminum rest,ya 5whhrc:ig3kt l(7s on a wooden table in a region where a uniform elec7k,53: (ralh wh iyctgtric field 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 electric chag 1tx k/8ou8kv wck+f7rge

  A positive point charge is enclosed in a hollow me b7rv7jslsj *l1yxkk3:u;2l 1ywsc6ctallic sphere that is grounded. As compared to the case without the hollow sphere, the electric fiey1k7;u:s x ll6y*2r37v cljjksb1swc ld at a point directly above the hollow sphere has

State three properties of conductors in static *7 rhg(.3b9 ysluv :ahtq:qomjhkaag)x 84i + equilibrium.

State Gauss's law.

  The charge carried by one elec+nomo-p8e 70ac/vdgo 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 hxpnbcyz w,bjb-v-21w ,xn u :-/n5a rias a net charge of +2.00 mC. How many more protons than electrons does this piece of pycvbujnzn--,np bb5a, 21 ww:/x-rx ilastic have?

  What is the charge on 1 kg of protony:cj8ow+y d j*s?

  An atomic nucleus has a charge ov zcco.uv4 -x,4) xqbo2xe fc/f $+40e$. 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 -4.0 +6i3tq pnznl/mC, respectively. n3+/ pz6qltinWhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charg,by8z epw.n4pe, and the force between them is 1.0 N. Wh 4en .zwpb,py8at is the magnitude of the second charge?

  Two 1.0-C charges have a force betwbh z08k.+ x cao78nazteen them of 1.0 N. How far apart are they?

  The force between a ;jmclvhi;gn-p/h f..u3 k -cenz 68j v$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, ex 2(zfw9 k jybsz**oxu,perience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between theofzb(u* *y js2xk, wz9m?

  Three identical point charahvn/g72ud0q/ 2 (*x7swr6onibav j u ges 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 thevaujar6s2h0/(nu n 7*qi wdxgb2 / ov7 magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on tx*n54.cjh mt;buse1dd o b((4efve*ohe 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 toemdbxd(j4se f;b *.5* h4nute1cv(ohe magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Qe645 kzmgi21rv/r)gnji bke(1 = 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 )b5nirm 26ek(1vjgi e4gzr k /the force on the 3.00-mC charge?

  A point charge of +Q is placed at the1vm dzb oj9br+ 0f,w, onap72u center of a square, and a second point charge of -Q is placed at the upper-ln o0b1,oazrm 9p2wu,v fb7d j+eft 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 is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 msxwgh9rw ;9 yk :c+dt8, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is grw98hkcdwtsy 9 ;+:x the magnitude 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 nC i :un vocp:+k2is at (0, 0). What is the direction of the net force on th +cvk:ounp:2 ie 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the v.,-3ppmds thf65hj h hertices of an equilateral triangle which measures 30 cm on a side. What is thps hp3fjt-5h,h 6d. hme magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which ar dah1 l*i)lurvy(zl25ce 2b- ke separated by 3.0 m. 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 zb1kh)uc*l2 v d5yill-2rae(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. Wherw;xssid*jh1 / hrc- *ne on the x-axis can a third charge bes xcsj n;-h**r/dw 1ih placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge t,;slzu nitw1i ; g(zw6t.e y;-q is placed at x = 2a. Where can a third positive charge +q bn6st;z t;.y eiz iutwg( ,lw1;e placed so that the force on it is zero?

  A copper penny has a mass of 3.0 72og c42l:ddox9 qbmug. 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 againsd 3nqp8g2zd.0.cf(t wtp k ww(t the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is dc0nd.w3ptg(2wk fzq 8p(.tw the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thread *,qdm2) a3rphgjc4zfs which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them aparpc, 3f)q*mhr 4zj ad2gt 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 thewv0w0yqc )x6:rcd ob) electric field at a distance of d0 wr)6b0)wvx c:oy cq1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distal gzo4(d1ld 7r8dy8ukr1 i8 tnnce of 1.50 m from a g887rtudl1lyno d4d kzi8r1(50.0-nC charge?

  A 5.0-C charge is 10 m from a small test bwx g ,qt+x:ubm3* 0rcem1om*charge. What is the magnitude of the electric field at the location of the test mcb,1x wqg0 x*e: m+btmu3*rocharge?

  A 5.0-C charge is 10 m fg 0r cq zg 3v: ap,l s*6bglvuwvkb:127gik76krom a small test charge. What is the direction of the electrig kgb qk6:7bzr vcw gua il1*v0,:6 7pgkls3v2c field?

  A 5.0-C charge is 10 m frome3yv9z .fy 6pys9dog ) a small test charge. What is the magnitude of the force experienced by a y3d 9ov y)g.yspz6e 9f1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separatedq0 fnprpd/o2+ by a distance of /pq0 dp fn2r+o4.0 m. What is the electric 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 and a -4.0rnk+(mx(74 cc2fow zm mC charge is placed at the 50 cm mark. What is the electric field at thn24 ccmxmo+ (fkwr (z7e 30 cm mark?

  A 5.0-mC charge is placed at the 0) 6bytf t 2w7m wzw(rtu,x9uk4 cm mark of a meter stick 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 zr(uzutm f)t6 wt 4y9kwx ,w7b2ero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 an:9t/5h zm hood +x3tnmd x = 0.20 m. What is the magnitude of h /t9tx on3 zom+:mdh5the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners o j )d9saxcla105yxqgd ;58v djf a square of side 0.50 m. The last )v a5jj9dldqy0gxx 51; 8 dasccorner is 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. Charges are placed at the coch a9+ktni (6i6 pk/1e.uaod mrners 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/dc6aauok( . pi ikm1t6h9en+ the magnitude of the electric field at the square's center?

  A force of 10 N acts onn ubqfz(g )kgx 8cs.of-79p a6 a charge of 5.0 mC when it is placed in a uniform electric field. What is thc9n7ukaf g 6q f b8x-gps).(oze magnitude of this electric field?

  A particle with a charge of 4.0 mC has a 64hmr.0t5t o pbyh 4oqmass 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 ek ilhquf g,bq;8m+ ry,(og+c /lectric field of 6000 N/C pointing downward. What charge must be placed on the ball for it + gkuo,(lqc+rmbqyhf /8;g,ito be suspended?

  A foam ball of mass 0.150 g carrie )5f lv zxz8a1xwz;3pms 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 elec3a m5f8 xzwz)vzxpl1 ;tric field?

  A metal sphere of radius 10 cm carries a c,1 ig6(dpj* fkt ,hgdcharge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's sur,jht *61 dk,gci dpfg(face?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the iuwz38gyt1; lw,3 psl electric field 6.0 cm from the center of thew8tzu1gwlsi,y; l3 p3 sphere?