State the law of consec+frjxy oj0)z 4mgz.f: b1w5z)x 8cnjrvation of electric charge.

  Is it possible for two negative chargugo5 dnxcby/ ;om ,w4/es to attract each other?

  Is it possible for a positive and a negative charge4ug2lo 8p*o fm to attract each other?

  A glass rod is rubbed with a ppmyt yft :4vix.g jz,nx;pg64ml;y 2:iece of silk. During the process the glass rod acquires a positive gt4xmj2g :; myn yvtxi .:6lfpp,z4y;charge and the silk

  A proton carries a

  The model of the atom showw;ke yqaui4t9:(y 2 ees a

  A neutral atom always ha6n y;q;*iyn9r z+ec mjs

  An atom has more electrons than* 7ot3,czwk0qk zzj +l3znzj , protons. The atom is

  Materials in which the electrons are bound very tightly to the nucle, k+y.ba sg)t1pt ;awx bk:ry-i are referred to as .ttxs)-yy+b a;rb ,1pgak:wk

  Materials in which the electrons are bound very loose ,ox tui(f;fpa47tyj,ly to the nuclei and can move about freely within the material ari (t,7j,;ypfafxo4 ute referred to as

  A negatively charged rod is brought near one end of so28 ; un.we(0h-lrf.e +vh*yugl rw,qn 5idlan uncharged metal bar. The end of the metal bal nlsh0ro2vdq u ,+.rw*ef; nw(lyg-u8.5 iher farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is nk7c 8,d 0 cyz-1lzt6saikir; keutral. They are placed near each other on an insulated table. ;0 8zkca6sidik z1 ktr- l7,cy Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope +0eg16 eoqe / h3v*,jw jfmh0gt2y ngzpositively?

  An originally neutrall6axgtt(y8xy np2 (: t electroscope is briefly touched with a positively charged glass rod. T(86xpgytl:na2 txy ( the electroscope

  An originally neutraljwqkp*y(ov .qx+2 v4l electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is remlvoj 2qk+ *yq4(xvp.woved, the electroscope

  A positive object touches a neute n7fmdwm-2t(f*9mt: pq zki9ral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens mtmk-n m*i9p:f(qz2 79td fweto the leaves?

  A large negatively charged object is placed on an insulated table. A neut ac7;37t7dwq mjc6wgz58a hpural metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rowm gaq5 z twjd37cp6877ca; hulls 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 con rqtphrl)* *z;stant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. . g0qrfxkti:)p yv(/ixb6r 2*bs ze 9rThe first charge is larger in magnitude than the e0 y/ bb kir6fgp) (v9s *qxr.:2izxtrsecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed n+;rg lxlpz22ty8 5ze near each other on an insulated table. Which statement best describes the electrostatic forcrp;2yl +lz8n x5e2tgz e between them?

  Two charged objects attract each other with a certain force. If the cjkfmcy l/ 3i74harges on both objects are doubled with no change in separation, the for4k j/fi3c yl7mce between them

  Two charges are separated by a distance d and exert mutual attractive forces w2x8.yh6+ tpmnuap3lof F on eaa+3hxp6p.82my wt u lnch 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. What happ(ow( lpm 6rrl3 z6+o.zo1yky pens to the force b6p ory1zmy+(lr63 (opko .wzletween 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 value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What haprzima) e75uc 2b6j 4lypens to the magnitud)4bicjm e275ua 6ylzre of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated byun*0v58 k0: vwjmhtka a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second e8jv v:0kkwu n*5tm 0halectron is placed next to the proton?

  An electron and a proton are separated by a distance obm9iy n tc6w55 vy,g bkhh: 9ci3 /l77id3ldrif 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m cn5i,7 i9db 5wll d3gkh /rym6iv: 3 yciht79bcloser to the proton?

  A point charge of +Q is placed at the center of mglt :d+pl-1t(yhoh07t b (t/vzvj-b a square. When a second point charge of -Q jm/- h bg(+ 7top(vtt1-lh :d0zvltybis 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 charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilatero4j*l4.;lcvptq+p1h 1 xk rdv )nl1kwal 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 charg) l1t1x l1nvw ph4o 4j;r*v+pqklkc .de due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vectorkimgs+c;-(.0 :bl f-ye bdbed?

  At twice the distance from a point chargecup,v b31spk0npmj6 5*2:d+c jct rwq, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and pos(z+y25wz pnmxh5c*i ao ndm 57itive charge along the line joining the two charg5 x* w5y ah+dzicopm( zmnn572es?

  Is it possible to have a zero electric field value between two positive chargelzpg0d,6z,qog6 2e vg s along the line joining the 6dg ,lpz0g6,z2 veqgotwo charges?

  Electric field lines near psitive p 8a ;,u(nbs::a mlgfswoint charges

  The electric field showcdo s+*w01 ndjn

  Can electric field lines int)2zv6 1v4p qd f7vqebzersect in free space?

  A solid block of metal y /)t: kxez/p(9fukljwvx 21d in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in(v: l1/k/ 9pf) xy2wkeu xzjtd the block's interior.

  If a solid metal sph pkwce 3e )..qejuqu* .t2fs*tere and a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the sure .*q2 s)*.tw tckjeqepuuf.3 face is

  A cubic block of aluminum rests on a wooden table in a region where xx9a54 lvc)bw hrg26x a uniform electric field is directed straight upward. What can be saidbg4w)axl2rx6v 5hx c9 concerning the charge on the block's top surface?

  If a conductor is in electrostatic im8cc8c),ivx dc 8lb4equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spb43ywl,w*pud -9tg lh(3+ mesz:at nshere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphereb4mwe:sls3 zd*g9+3u la (wy ,-tpthn has

State three properties of conductors in static equilibrc2 rtz1qb5efx a(*b3hium.

State Gauss's law.

  The charge carried by one electron is 6mdo8yd rrc52 $e=-1.6\times {10}^{-19}C$. The number of electrons necessary to produce a charge of $-1.0C$ is

  A piece of plastic has a net charge of +2.00 mC. How many mu9q6;z- bkvuy ore protons than electrons does thi9q k-u6u b;yzvs piece of plastic have?

  What is the charge on 1 kg of protd3 nttf( 2aqp 4:h2fgqons?

  An atomic nucleus has a charge of q8 ) fms;yji*tlt0qt(8ktf-d$+40e$. 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 char c2otyp6n ou08k2gs+p ge values of 2.0 and -4.0 mC, respectin yo2s8gc 6 ot+upkp20vely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from pd30wy 9 uos*.8hvtjna second charge, and the force between them is 1.0 Njv *huds8 on 0wp.3ty9. What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them -yy /og msg:7 g rzg7uk/c:7aoof 1.0 N. How far apart are they?

  The force between a n) acv/0bjsf kv ;8gg6$30mC$ charge and a $-90mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallye-6/3hq0 x5izh lqy pvqtz: 2hk66fbh 2.0 cm apart, experience a 1.0-N force. If they are moved to a new0tx /h63ez6ph5qf iq2 hqv:b-z y6k lh separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placs n,v2owh3pwc+pk t zue r3d04d+:,/0rynw jaed 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 mar3/,n 2rvka t nzu+ d00c4:w3owjp+wrdp,hysek. 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 p)ias yndpk 66)laced at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 1006psy6)a in)k d cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are locatpezixe1xxu c3 8,03yp.l -vnued at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x znx 8i0,vueylu.p3-e3p c xx1= 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 secuw,p4 cvwifm*x,il 2.ond 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 thiw 2i.fv,i4muxl* pw,crd charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 =l6a8/uw,wp o,nh i(bb -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net forcea8,/l6ipwbb wn,hou ( on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 1 +*zgr bew1tzoqpasg8x)i:8nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0g1*+gzqit8os8: zebr1pw x a ), 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0/-ktzcid (l2 si icl++ mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatiic+kz-cs2td ilil/+( c force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which arohbv59 u*26yqhm xetu1x u,7z e 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 it would be zero?mht2yo hbxuz7* 1u5v6 uq 9,xe

  A +3.0-C charge is at the orig/,adm 1x i;1ycj: bdjt7 u*qbvin and a +9.0-C charge is at x = 4.0 m. Where on the x-q;davdx7j1 cm,*/iju: ytb 1 baxis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and kui0fl ez.p -x5bs.t3charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that tk .stbf 0ip.x35 zl-euhe force on it is zero?

  A copper penny has a mass of 3ui 8vkyw0r 3 txeb wtjm.(9r05.0 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 of gravi a gjcijpm- :c3d61(idty by the attraction of a fixed proton (i gccd31 im6-dpjja: some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are nte4u,5uqwl4 hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the qw44uun 5tle, 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 e7m+/mg ewg )tgu0 s/bglectric field at a distan0w/+7um bst/ggg )g emce of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a bgl b 1,3cke+ydistance of 1.50 bk ,ly b+gec31m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Wnv3 c8 )ibyxk)i8mardu: x(0 vhat is the magnitude of the ele8a0(b 3vvxu)idyc )rimxk8:nctric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of fed*z6wi,q xmk;zl+1 the electric l 6,zfq*wz;edx+i1km field?

  A 5.0-C charge is 10 6ewpgmfgz1a*pcc- : 0 m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at t1p:*-pgm 0gaecc 6zfwhe location of the test charge?

  Two point charges each have 6t yb3fp u5e*g yu8 uqq tdw./7gb88uta value of 3.0 C and are separated by a distance of gg u/*b 8uwqpbqet 3utd.78ytu85y 6f4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0hmt es, ,ki)7x,ao0 bw cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark., ) m, okwxs7bteha0,i What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm magdxui c4a.l y*, 2te2frk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joinin.c4y* e,atil2x d2ugf g the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 vv z+b5dx7j7 vcabm6. and x = 0.20 m. What is the magjbzvb5 + dax.v 6vm77cnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three c7y-: eppbncw*crsfb0 d) 8n3a 2qn fc)orners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charg)w0p p 32*b y:cbcsn8- r f)nqnc7daefe. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges a:; hzm /b3/jccenlvi) re placed at the corners of the square as follows: +4.0 mC):bijm h cvczn//l3 ;e 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 when it is z/ tmhw6c2:kbn7u 0at placed in a uniform electric field. What isk2tznw/huc tm :a70 b6 the magnitude of this electric field?

  A particle with a chavwzs q9f a-a 1 jxd;70,mb)xkqrge of 4.0 mC 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 placej9gqlpf 2+8k y*q (z qttr8dhzp8p(3ad in an electric field of 6000 N/C pointing downward. What jr 8pqd*fzqpyl8 ahpk(2 +qtz3tg 9(8charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g,c/ s( ta5o dkzs;ebv( carries a charge of -2.00 nC. The ball is placed inside a unifoa,bkt(5 s/z;vdse(co rm electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What id8wt )/dtlr 6ss the magnitude of the electric ft/dl t)swd68 rield 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 ele z)l gq pe(o vt7:f5w*zfy*4(uk:qdndctric field 6.0 cm froe fno 4d7z*k g*z:qfd((vqyt)up w:5l m the center of the sphere?