State the law of conservation of electr1pwjel4c 6( m gvx1g q,s0 (;cqxxpzk4ic charge.

  Is it possible for two negative charges to attract ejji+tv u;7sm2 bm9uz 6ach other?

  Is it possible for a positive and a negative charge to attraccdnkfc0lu0 odq ); *vqkzk )41t each other?

  A glass rod is rubbed with a piece of silk. During the process tpt/6jf1s cw :yhe glass rod acquires psc/f1tjwy 6: a positive charge and the silk

  A proton carries a

  The model of the atou6z)tdj 9:,q .2irc lepj gtqv: (,ycam shows a

  A neutral atom always 2dl:t*g xxez:l z h73nhas

  An atom has more electrons than protons. The atoxmbeq u,vg8e-x0 fgsw5vv;.zip9 c :3m is

  Materials in which the electrons are bound very tightly to the nuclenalz0 abgjq6+ji 6(a:i are referredq6 na( g:zia6 0jjabl+ to as

  Materials in which the electrons are bound very loosely to the nuclei and can mot+f8w ijw )1 akwq1l+85rwdtvr(pu 7 lvellk 15rra1w w(+t+qdvtpf878 j uwi)w about freely within the material are referred to as

  A negatively charged rod is brought near k0d3ytt*amd8a/p5x g one end of an uncharged metal bar. The end of the metal bar farthest from the charged ro/a0t3a8xddt 5g*pmk yd will be charged

  Sphere A carries a net positive charge, uavi5eu b2k+ bfz6e0;and sphere B is neutral. They are placed near ea;b+eb2ue6 kv uiz5af0ch 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 ce*15 gwujp pm,- z0iok) c7+v +oenvxuharge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positivelzdnh,.gy bmd +:aox,q +f6h7dy charged glassdx:hf oyd,6,mg +ndbq+z.ha7 rod. The electroscope

  An originally neutral electroscope is grounded brio b p-bzte:;c7efly while a positively charged glass rod is held near it. After the glass rod is removed, the electrosce tz- 7bob:;pcope

  A positive object touc sr2dqkr,4 8icwn1gk ,hes a neutral electroscope, and the leaves separate. Then k2rn qs,c1 8gk, wi4rda negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed o37aomy zwq+ m6n 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 fi7 3amoymwz q+6rst 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 kw1la +7i x0dl$k$, which appears in Coulomb's law?

  Two charged objects are ses usolr,b;uo+.ik nktk/. . u-parated by a distance d. The first charge is larger in magnitude than the second charge s,ubtu. . / s+olkr.nok;iku-.

  Sphere A carries a net charge and sphere B is neutral. They go)u7aej9vf, liidwc c / 4g.0are placed near each other on an insulated table. Which statement best describes the electrostatic force bl74,ijdiu/vc9 .woc egfa )0getween them?

  Two charged objects attract each other with a certain forceus6)27ox1kjs.2 iojtuz tre7 rq u8 *-+ lmxtl. If the charges on both objects are dou lum1 tr7ji*e2rju-x 87sts tl o)qz.2+xok6ubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive f7b- qb ;r :d5 w xg*vbuww6,kuris/yy9orces of F on each other. If the charges are separated bywb6/w 7u,rbd *bkr: ;sg9y5xw-uqyiv a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the fvp:(ogyw ud 9:nhyz31orce between them if one c(y3 w:opvg:d hu9y1nz harge 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 happens tpgy 01*togh )is- oh7)gd mzu-o the magnitude of the force on the proton if a second electron is placed nexto- hg)ztuyi pd s gog071m-*)h to the first electron?

  An electron and a proton are separated by a c3r6 r,9 ;r2 k,0l7cs4ygy smodxm sxldistance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the proton? ccsrd,,9y3 xxo0ykrlgs 7ms6l; r2m4

  An electron and a proton are separat5 -c7 5ps4if/evn fnabed by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to thin75fs5 ape 4-fbnvc/e proton?

  A point charge of +Q is mvs)s fo45;e 5e,tgeiplaced 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 charg5);vgte5 eimesfs ,o4es 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 placeog h:5pfky h a066.llld at the centroid of an equilateral triangle. When 6fo0:hg l5pl.ka6l y ha 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 placed at one of the other vertices?

  Which of the following is not a ;h)q h93i es7x ;g* elwc1c umqxu81vivector?

  At twice the distance from a point charge, the strength of the electric u;0;/*; brtkpi vathv field

  Is it possible to have a zero electric field value betwee1y g+t/yc;xv k(ggq r5uak;n1n a negative and positive charge aloug;t/yvxy g5 ;rcgknk1+ q1a (ng the line joining the two charges?

  Is it possible to have a zero electric field value between two posic:j+u-q 9emha tive charges along the line joining- u9h+qajecm: the two charges?

  Electric field lines near psitive point challbwi:l/ ;x-s3ut 1q grges

  The electric field shown ,i fq r nlik)ue),y31v

  Can electric field lines i)q k n vq.znvbg/11pi oo -8-nto;owh1ntersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ees7 + q-hjdxa *lag h62dn+rw.lectric field. Give a statement concerning the electric field in the block's in +6-d+7rxgldwa js*.q hn2hae terior.

  If a solid metal sphere and a hollow metal sphere of equ3n4tg4d8ds6 /qhj.s cil h(gr al diameters are each given the same charge, the electric field (E) /hhsl r4d 4n.iq6d3 gsc8t(jgmidway between the center and the surface is

  A cubic block of aluminum resguu(x 1 o)bu,qts on a wooden table in a region where a uniform elbo uu) (qxg1,uectric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrost* 80hiaw 5rsidatic equilibrium near an electric charge

  A positive point charge is enclosed,h5n yka8 5wgk in a hollow metallic sphere that is grounded. As compared to the case wig8h,ak5n5 wky thout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriumbay eu)b cjvqnz5(dc/+tamv0 *5bv 0*.

State Gauss's law.

  The charge carried by one el7 8ae03ph*ijbexw ig. h,b 0aoectron 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 ch 8gnlx4 1j9 ossv(why)arge of +2.00 mC. How many more protons than electrons does this piece of s4xsj9( whygvn1)o8l plastic have?

  What is the charge on 1 kg 1cq,gg 2ecpxn,ivrze f30il2 7 2 c(njof protons?

  An atomic nucleus has a charge ofl; z + ckddxr17,mmn9a $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cmpppq9iwo.ul; gx: *n ,, have charge values of 2.0 and -4.0 mC, respectivelynp ,*w.g:pq oplu;i9x . What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them i6pnxuz:)x j;zs 1.0 N. What is t;zpnx ux:)6zj he magnitude of the second charge?

  Two 1.0-C charges have ak* 0qfj)eq wg+ force between them of 1.0 N. How far apart are they?

  The force between a mhk m1f4q.t3u0 cr*n o$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart,;;ru)g r9kwt(7anwcv m8vr 8g experience a 1.0-N force. If they are moved to7w8)rvt;ur cr89wm gk ag;n(v 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 xq k wps5n23n2z-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 ez 5wksq npn223lectrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC ila,bxhfj 3(36pvd p1is 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 direction of the electrostatic force which acts on thejh1vl,3i 6(a3fd p bxp charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.0a et, .9c;0m0 znncwsg0 mC at x = 1.00 m; Q2 = 3.00 me 9 s0ntnm. ,gw0zacc;C 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 (siy f w8gc,3,trtvfszp*i tp-au1hy ;9pp/7center 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 thatpt9psw r1if(-vyhi/u*tz8g ,fs yp7t3pc a;, 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 m, 0); Q2 = -1.0 nC is at (0, 0.10 -a -1nhm-igzj m); Q3 = 5.0 nC is at (0, 0). What is the m --iz 1hnajmg-agnitude 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,y l 3 zc:fl*d.;do4wpo 0.10 m); Q3 = 5.0 nC is at (0, 0). Whad.p;3 *wllcoy 4dfzo:t 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 an equilateral t:fi 51uo ksw.. ,zaxodriangle which measures 30 cm on a side. What is the magnitude of the electrostatic force whic.wkx zf o, do:.5iuas1h acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are s5 /eb-tp5: . kjpdytlbeparated by 3.0 m. At what point, on a line between the two charges, would it be possibl5tk bp d:l.t-/bj5ypee 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 ori0vhj6 9hx prolkgy :3c,p6qxpa)2 )u cgin 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 k :c6ga,p3)2 x opxvhjl)p9c r06q yuhnet force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = er,kmvfn :k 2mv+,d.u2a. Where can a third positive charge +q be placed so that the ffkmkr: ve,m u.d+n 2v,orce on it is zero?

  A copper penny has a mass of 3.tk*r8yvilfv +pvz l l+9i+7n 20 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 gravity by the att mwuxb)m:ymp87f;e 2nraction of a fixed proton soyxf2:mpm mnw eb8u 7);me distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncondux yom rxda/5j7s14ul8cting threads which are 30 cm long. Both are given 14 jasl7d 8rxy/o xum5identical 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 magnitude of the electrii8k l kr(t.8dtc field at a distat lk8 (.tdkri8nce of 1.0 m from the nucleus?

  What are the magnitude and direction of the he-0 uiekxf0m q/g.r7 electric field at a distance of 1.50 m from a 50.0- xmf./ki7eh0e0rqu- g nC charge?

  A 5.0-C charge is 10 m from a small test charge. Whatq2;hse+z ec(mni tk-s m a(r1o:+4uvv is the magnitude of the electric field at the location oz2iaom-unvv q+1ths + mrees( ;(ck4:f the test charge?

  A 5.0-C charge is 10 m from ne 4p;o*v7zfbbz /n5ia small test charge. What is the direction of the elp;5z4/b vbi* z7ne nofectric field?

  A 5.0-C charge is 10 m from a small test chainzf49v9h f0mrge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the lo0f nmi94h9fv zcation of the test charge?

  Two point charges eap3.i h8ny5: mqoy+m6yy vkz5 ych have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges?q35nhypovi z+:m yk8myyy 56 .

  A 5.0-mC charge is plac( hk,- fbbdrp+ed 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 eb-(,fd+h prbklectric 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 chargf1 ; 4pe(aah,3 j kep flm)aqbag9,*xpe is placed at th ja,h 93eka,4xplg;a)febpf*m 1pa(q e 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 placed at x = 0 and x = 0 no.v cks:2;gg.20 m. What is the magnitude of the:gs 2vo;gk cn. electric field at the point midway between them?

  Three 3.0 mC charges are at - ,rf4+iox jsythe three corners of a square of side 0.50 m. The last corner is occupied bys4-jy,r +oif x 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 a1hfk*8rl 5in0 l:v ocho z1t7yeu0eq-t the corners of the square as follows: +4.0 mC at (0, 0); t8:0-rloyv71* e i5nhl 1zk uoq0chf e +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 placed in a uniform e*t(x4 dcg)nuj 3); xxmza,hl)b5ls,igu+c belectric field. What is the magnitude of thisj4d+es*hit)gcxu x a)b5 ,l n()z ;bcx3lumg, electric field?

  A particle with a charg),uimm1qd.x x+/rc ame 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 0.1cgzw:k9( o) vg20 g is placed in an electric field of 6000 N/C pointing downcw(gk g: o)9zvward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 8:i+fswrieiq2vy fi ,sw 3s5 /0.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravise 8v:/iw+sq ,i 2i53risffwy ty. What are the magnitude and direction of the electric field?

  A metal sphere of radiuy3cj8l 9.qhcz s 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field yl3 c.cqh9j8z 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What l86i63x (jr 0b(vxr,x kvm ewyis the electric field 6.0 cm from the center ofb( r0(6ke8,ym wjlx6vvxi3x r the sphere?