State the law of conservation of ele4xpm2: 9w7p8c whqwwt ctric charge.

  Is it possible for tgtl+a ys. /.4z;ny hrz;vyy q,wo negative charges to attract each other?

  Is it possible for a positive and a negative charge to attra2o s830m t;) f0wmxltl;xu xfict each other?

  A glass rod is rubbed with a piece of silk. During the process t,hccb 7w;tp j;he glass rod acq ;jcpt7;bc,hwuires a positive charge and the silk

  A proton carries a

  The model of the atom cy egpl33p.d.; )p.i he/ 1k6worpuh rshows a

  A neutral atom alwaysm*aqc zf3o y8, has

  An atom has more ele63pl4,5mcrr8hu1 enu o7 kc dectrons than protons. The atom is

  Materials in which the electrons are bourxe g 2drqqk/qb8 ,kjqu:37s5 nd very tightly to the nuclei are referred 2qsq5e krqg 87jrb3x,dq k/u:to as

  Materials in which the electrons are bound very loosely to t(/gbz 0v;e /;wfewww/c6zfrzhe nuclei and can move about freely within the materialz wev;/f/6zrb 0fcg ww/e;z(w are referred to as

  A negatively charged rod is brought 6r 0 xk4 2ojnqiwjqh0+near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rj4i0h0 w rq 2n6jo+xkqod will be charged

  Sphere A carries a net positive chq7r8gfnso 0 ba 5 3 mr(:fxo-vunwdlvzov/.*7arge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that 8d vroqg u-xa fmvn*r0/3ns.(o:ob7wv5 zlf7 is grounded. Which statement is correct?

  How can a negatively ccox,h2m nx136p4osp;bgge tg9;/vj w harged rod charge an electroscope positively?

  An originally neutral electcxw179*urq3xgm xf/ ;qd j1v mroscope is briefly touched with a positively charged glass rqxgw mmvru1 jx/cx*7 d ;q913fod. The electroscope

  An originally neutral electrosbs69p(5qs7 .td puaq rcope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is rdapt67.p(sqru 59qb semoved, the electroscope

  A positive object touches a neutral electroscope, bo q o5q 0l 7chi:ln-al3vld27and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What ha7q-hc v7bqoo5:l02la3 ndl lippens to the leaves?

  A large negatively charged objec:;tx/ dqg(o fct is placed on an insulated table. A neutral metallic ball rol/ofq:c(d;gt xls 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 thdgwxdyb np /usb6x+4l a3o( .9e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largefhaj; u.2f7 hkr in magnitude than thhj;7f.fa uk2he second charge.

  Sphere A carries a net charge and sphere B is neutr l 30y95oxhm/ jroc9tkap,,f nal. They are placed near each other on an insulated table. Which statement best describes the electrostat9 mxl,copt9/35fnj,ka yhor0 ic force between them?

  Two charged objects attract each other with a cerv;;wz8(imp bstain force. If the charges on both objects are doubled with no change in separation;ibzwms(v 8;p, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces of 4rlr-hxzo)3 xsk3pno 62m0h nF on each other. If the charges are separated by a distance of d/3, oph4r h3)slmr-n6x20kx3on z what are the new mutual forces?

  Two charged objects attract each other with a force F. Whatwf m5apdd;ma+yq:9vqc7 2 hl 7 happens to the force between them if 7wvdmy; apd7qcf 9:ml5+qh2aone 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 separated by a distance of 19(us obip: hz(o ()ne+ qymzgn) k)uo0.0 m. What happens to the magnitude of the force on the pe0 ) 9:ougy zzkibq)(h upms((n+n )ooroton if a second electron is placed next to the first electron?

  An electron and a proton are separvzlfc6ll7c5 /u oa+6z ated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second eleclcollzfv c7 z6+a5 u/6tron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. mblj5 ml+db 6;What happens to the size of b6jdb llm +;5mthe force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is p6g7v u) buf(x.ysw:oflaced 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 net electrostatic force acting on the positive chwv f.) 6sg7bf:(u xoyuarge at the center of the square?

  A point charge of +Q is placed at the centroid of anr. c9a:f3bzt/ moo7 vz 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 o fm/.7z3b9 a:zovr tcto a third charge of +Q placed at one of the other vertices?

  Which of the following is not a ; gjq)xac/bd) vector?

  At twice the distanceq ;,yfk 49yakc from a point charge, the strength of the electric field

  Is it possible to hal v9;0;w+nuh:fjukiu , xutn+ ve a zero electric field value between a negative and positive charge along the line j; +f0;,+xuuhi v u:tn nwjkul9oining the two charges?

  Is it possible to have a zero electric field value between two pma7mlwd:+ rp:c oj5,yositive charges along the line joining the two chargesyl,ocw mj7m d:5r+a: p?

  Electric field lines near psitive point dw+(g/:;/hq .nau/iirnd bdm charges

  The electric field sho6n o i-e9j+ue7y1hwg8+gmaj ezr 3 *twwn

  Can electric field lintmjb )bs8 ljiew1i:jvj83m(+ es intersect in free space?

  A solid block of metal in electrostatic mhe po3nbv2; osd72 c*ur)b6vequilibrium is placed in a uniform electric field. Give a statement concerning the eldr;mh*v o2n 36ubvbso 7e)c2 pectric field in the block's interior.

  If a solid metal sphere and a hollow meta:8xqgywz )mvoh z/axsm5 9 kiy6 k67:hl sphere of equal diameters are each given t/xz87: o) h6yik :mashm9k yqgwv5z6xhe 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 a unifodva4c tlz :qc d6h5r9 aa1b*5crm electric field is directed straight upward. What can be said concerning the charge on the block's top surfaced* r6ql5:daa9ctv a514bczhc?

  If a conductor is in electrostatic equilibriumrc -ps eo(slbk 3vt+7kkc47f5 near an electric charge

  A positive point charge is enclosed a4c7eg/ cgvupl ) rx59in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric fielg ae4vcg)75 r p/uxlc9d at a point directly above the hollow sphere has

State three properties of conductorsnbi y3/xj8 rc- in static equilibrium.

State Gauss's law.

  The charge carried by one electro3 v.833pdfvne+le (zcaboo k2n 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. dk shg5-jaa9uro.80j5 e *rkt How many more protons than electrons does this piece of plas k-drgsko0a 5hrj8jtue .*95atic have?

  What is the charge on 1 kwtjpv) -*di l2k ijzvfu+v)86g of protons?

  An atomic nucleus has a v e8n5nlua j+,e7r/ nvcharge 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 or +d6sk7p;elm m8gw 9h 4.uotqf 2.0 and -4.0 mC, respectively. What is t.t+; h6p mm4 87w or9klguedqshe magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a seca*ig dn920 ur0ps6kts l5o 5dbond charge, and the force between them is 1.0 N. What is the magnitude of the second chargentdd*kl09s p0a6og5 2u s r5bi?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are tc4q (b+uze y/qhey?

  The force between a 5usmvb 2.beql bzg 2c.cx j/h4j.la3,j o m2c2$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exp) qd5n-;lapyk erience a 1.0-N force. If they are moved to a new separay; lk dn5-q)pation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on t hpkb:s9mg(+l8lxq 7m5gw;qk he 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 which acts on the charge at the origg( +gqlqhm:;w 8m 7kk ls9px5bin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC iah. p a(y:;v(wvf4iave2q l* gs 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 direh(aq(alvw2y*pfv.aev i ;g4 :ction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at thej,4 )e8alcj *kkgxul* following 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 force on tk84xa cel ,*kj)l guj*he 3.00-mC charge?

  A point charge of +Q is placed gj na: h4y )/y8e8yeznat 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 cente/8g:8 eezny4jy)nh ya r charge if a third 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 = 5.0 nC gv2dgq /n6o4s2 +pp ugis at (0, 0). What is the magnitude of thg2n 4og u/sg+q6v2ppd e 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 0jl5; eswg8gm is at (0, glw jems58g0; 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of anp5tsllj2ryxetu a(* uz/ x-hs z+q(7 ) equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of t uhysez* s+xqu-tzp2 7)5 j rtxal(/(lhe charges?

  Consider point charges of +Q and +4Q, which are separated by 3v6s 0 todui)mpbr-.. z.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 it would be zeros-. o) t.dz6murpi 0vb?

  A +3.0-C charge is at the origin:uvf9ez; th:. 3w mmorgrn7 g. 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 zero?9:m3 fmogwe.7trvr ;h n :gzu.

  Charge +2q is placed at the origin and charge -q is placed at xgludt- ..y-+sr b0qxgr75s: ameje -s = 2a. Where can a third positive charge +q be placed so that the force on it is zer- sxs+u j7 qb .rmy50-td:gle -aerg.so?

  A copper penny has a m*hv h/7x3bytd4i; g muass of 3.0 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 force hwlc32uim91vebvd*j x-k zsz 9;8t/o of gravity by the attraction of a fixed proton some distance above it. How fawkz * z1ce8d;sv3h2vobj9t lix9 /u -mr above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads z4z:(:a c s7qnq6i apiwhich are 30 cm long.6pz:a7 sn:ii4 qq(azc Both are given identical charges, 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 magnitj3 u4x(c3oyt0j7 e dsswjc+w 6ude of the electric field at a distance of 1.0 m from tw +jdxjssc37uo 40(cty 6we3jhe nucleus?

  What are the magnitude and direction of thj sh(c,:c j4p -w7urj4ntu*xje electric field at a distance of 1.50 m from a 50.0-nC charg(44j*h-w pj uxc,jnutcj 7sr:e?

  A 5.0-C charge is 10 m from a small test charge. agdy bm)e m0 dh)+0 zsx8(hb-o What is the magnitude of the electric field at the locat0h(s y)z+g m) 8edxbdm-o0hab ion of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directd*,r-2( zlz5 g2kr kz6vfnqdeion of the el fr*dz,g5q e( n2rz6l vk-2zkdectric field?

  A 5.0-C charge is 10 m from a small test charge. Whgn/a60 :gnx ..etklptsb ::yuat is the magnitude of the force experience stgl06kp::b ux./t:ganen.y d by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distanzxvm sc:j16d+ 6xol* nce of 4.0 m. What is the electric field at a point midwaj:+ 1lo6*6 nzsvmxxd cy between the two charges?

  A 5.0-mC charge is pl b;g op;t1.kdzirm3y6t1w47h ck6rt eaced 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 electribr;mti1kry ez4k. 361h d g;6tco7twpc field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meri5/waf v:j2o-pl4wzvat8 * bter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the fl-v5b*2pjv/arot4 z:i w8 watwo charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 c.fr /4ehdcg/0 lpju2x:kf)(p y; ebfmC are placed at x = 0 and x = 0.20 m. What is the magnitude of the f0 key ); xu.:(rb gdp e/pf4fj/l2cchelectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of apzc -ih:py j(7 square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the cenp i(7y :z-phcjter of the square.

  Consider a square which is 1.0 m on a side. Charges arti7 5tuu 4(ngre placed at the corners ofn t 7iut(g54ur 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 magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC whe1)dhuna:tfiwepm6 vz) b:* ;z n it is placed in a uniform electric field. What is the mwm:; )anpzft:vh zi1be ) d6*uagnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass9izdgai-y4l*5t +t dj ti +oa8-s(uuy 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. fah4neihlc4e6q kn3ec+6/p 4g 0edc in an electric field of 6000 N/C pointing downward. What charge must be pla. ehf43/c06e6 e4cq+ c4 dghen ainlkpced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries u7k pc*7vdo 9ga 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 fieldc*9pok gdvu7 7?

  A metal sphere of radius 10 cm c3 jg5qx /xry5uarries a charge of +2.0 mC. What is the magnitude of the electq5/xu5gj y3 rxric field 5.0 cm from the sphere's surface?

  A metal sphere of radiu+lcw+z pmi d9-n rl*uf- w1bw+s 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm fr*dlr-c 1wb+ lu p+n9-mwfz+wiom the center of the sphere?