State the law of conservation of electric char8led61 d5b 4fowb4muhge.

  Is it possible for two negativad2m ,tesa1 yeab 0cdq3t622 ge charges to attract each other?

  Is it possible for a positive and a negative charge to attr0 jlw*ijn9ro0 act each other?

  A glass rod is rubbed with a piece of silk. During the process thgn as0jw2v0aq6v4 0f9- yxange glass rod acquires a positive charge and the sijayn4v00 -v9axfqsg w620gn alk

  A proton carries a

  The model of the atozuobo xv((n zt*m6a:7pdv 7 fx8)e d:em shows a

  A neutral atom always hakq:ibn hyl) 0,(woyrrfbpc9 r i2 g:(7s

  An atom has more electronbm*3i ix3 up-b2v p)qls than protons. The atom is

  Materials in which the electrons ac 7fi3v;h1qsc tpq60i7hz ,aore bound very tightly to the nuclei are referred to ,0opqt 1vh s;6ic hc3a7f7qz ias

  Materials in which the electrons are bound very loosely t0.9 n6l-bg ef yh)2tiuu0vpsvo the nuclei and can move about freely within the material are refe eh-09vtg vlui ys.pubn260f)rred to as

  A negatively charged rod is brought +c y0d).z5e wwjyxk6p: /selznear one end of an uncharged metal bar. The endwc.:+ wd lezp5)ysy/ej6xz0 k of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Th,qclo w/+;d xq4hg7sy ey are placed near each other on an insulated tabld qg yo;+cw7s/h lx4q,e. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope - t+ f8bvyk/zfpositively?

  An originally neutral electr850mi,kicpnlq4 n n)o/tr/t ooscope is briefly touched with a positively charged glass rod. The electroscoppt) 5qr/nnt 0o, ic8nli4k/ome

  An originally neutral electroscope is grounded briefly while qya45 (x fbk:ya positively charged glass rod is held near it. After the glass rod is rex4fy:a k(5 ybqmoved, the electroscope

  A positive object touches a neutral el6a(r2zh.r(ku uim z a)ectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not toucz i.(ur(a ua2z6 hkm)rh it. What happens to the leaves?

  A large negatively charged objvb-fyyg6 n,e5ect 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 forwardb,5eg6f -yn yv, 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 consta ire /myt5f5j;nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger ik0j6bfk:vq ( sn magnitudbf:qk v( j6ks0e than the second charge.

  Sphere A carries a net charge and sphere B is neutral. Thedv .hqj+wdv; y i2h5f)y are placed near each other on an insulated table. Which statement best describes the elecdj52.fi;d hvyhv + wq)trostatic force between them?

  Two charged objects attract each other with a certtlc rcq.y ),3hvv3,p(ux;re oain force. If the charges on both objects are doubled with no change in separation, th3hcxpuy; ,t)vr3o qc,( vr.le e force between them

  Two charges are separated by a di. kp*e. v,ry sw)pn/t5:eqjp nstance d and exert mutual attractive forces of F on each other. If the charges are separatqj.t5pp w / ,rnkvye)ep:*.sn ed by a distance of d/3, what are the new mutual forces?

  Two charged objects attract eachx9xz)c+ qhry qbv.p 6/ other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and thq6xrqvyb /x9.)pch +ze 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 hasz, t ssie/sy(+l.z e8ppens to the magnitude of the force on ts ,z. eis/y ez+s8(lsthe proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happenss+5 y)y(0ena t is1bbs to the magnitude of the force on the first electrs)ssea+ny b5ty1ib 0(on if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happe3acw 9c)tko mb)fh 24vns to the size of the force on the proton ihm4c3)c2) b a tkvwo9ff the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squc w6jw-.d)hw vem,x0nh + u;doare. When a second point charge of -Qxw.djh,vw )cd +-h 60mwe;nou 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 charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral4p9ysm-k z*y5bx : kuk 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 p*y-:x mku9b4 kyk5s zcenter charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not +s83v l7uasdqt jrx +*a vector?

  At twice the distance from a point charge, the st(gskr7w8wt( m; -;axk cocg,b u4gw)srength of the electric field

  Is it possible to have a zero electric field value betwd9 l0rsry:l52: jami yauwrwc1 cw+*)een a negative and positive charge along the line joining thwws9 r)yyumrrcw250:a:* c1d +lal jie two charges?

  Is it possible to have a zero el v+dhotrkot6 (;ao2vn/q(h /gectric field value between two positive charges along the line joining the two charqkr /+ gaon2/ thhv(v6o(od;tges?

  Electric field lines near psitive powoo pl8jo( 4-fi;7 yagint charges

  The electric field shown -m*w npld 86o8vbxgn.

  Can electric field lines intersectx(hej6viw7g2(sbih eo /p;1. /vcb fi in free space?

  A solid block of metal in electrostatic equilibrium is p34/q9ioy9me i :jgykb laced in a uniform electric field. Give a iio4qke3yy mj9:9b/ g statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameter8 d2tf:5p t(rrg+apkhs are each given the same charge, the electric field (E) midway between the frrp(kht:datg 258+ p center and the surface is

  A cubic block of aluminum rests on a wooden table in a bj5 dqmpdxvh koif( 5m0 e32.j81bw8hregion where a uniform electric field is directed straight upward. What can be said concer dj(mpf dkh5qvmwe 51o j80hxi8. b23bning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nea.t1p lp(gmfl .r an electric charge

  A positive point charge is enclosed in a hollow metallic yuxn ( ,u6 - p4x.*r ba3sqrl/awpv-xu/zi3 casphere that is grounded. As compared to the case without the holnuysvzlc a4*r. x r3b, uuppxq(ia/-3/6aw-xlow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static 7 urh rhx/5vh*wc4jc+equilibrium.

State Gauss's law.

  The charge carried by w jgo5lb8 g0w m;vl6d6h6(vbs one 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 has a net charge of +2bv j9rz20ofs .+*k hai m/uq9l.00 mC. How many more protons than electrons d+ lq9bsf.vo r zku*9aij02/mhoes this piece of plastic have?

  What is the charge on 1 kg of proton*6fzk imozjjrqt 4 /)9s?

  An atomic nucleus has a chap ; yx)5 jch;ib8wzin5vj)h)rfcl9s8rge 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 x-b).m40yei:): ,u ym2gmgacdy hny o.0 mC, respectively. What is the h g:0 dgb4c-moayynmy x)ume.y2,i:) magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 7 *lztz,frq 4yN.l zyr f4t,*z7q What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are theywq9e1s w;dxa g:)4lm x?

  The force between a *ctpckj1f-k(kvzl cb o 1( 2v2$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienc;3y w lilfp7:z24bvq v,h:vnvn48ba fe a 1.0-N force. If they are moved to a new separation of 8.0 cm, l4qi34;n:7 :z l vh2y8v,bnw favbvfpwhat is the electric force between them?

  Three identical point charges of 2.0 mC are placed on theit z79sad 0,fvyl 4hm8 x-axis. The first charge is at the origin, the second to the right at x = 50 cm, an0i4myladz9, tfs8 hv7d 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 placedbu7n3vb kyjct v/a.+ e 7l/)zk on the 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 bb ze/ a3t7.ykul)cvvkj/n+7 +4.0 mC 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 located at the following positiob stf0;)krp -qj ao+t9ns: 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 tfstbkj0 - rq) p+ao9;the magnitude of the force on the 3.00-mC charge?

  A point charge of +Qy5ej1fnq u52:mse8j5 w 9i ned is placed at 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 thirdw mnj8ief5 e5es: 1u9yj5dn q2 charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0)1x j7,fca+c2 fjcte w5; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). We 1j+ 7,c fcac5xjwf2that is 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 ;hishrr)-o4xm5 mopkpj ;) 1im); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thki;5rh4mpx )r ;hsj)mo-op1ie 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateralq.a4 k evq*c 0lwsh77h3xg.zd triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any d.xkqzhwghe. 3lv 0 *4s7ac7 qone of the charges?

  Consider point charges of +Q and z6uzr (qj79ry+4Q, which are separated by 3.0 m. At what point, on a lr 6 yuqr79(jzzine 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?

  A +3.0-C charge is at the zrf+* emg;tblt(v /;dol1 j7morigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third chargj f;d/bz;gtvrl+*1o tle7m(me be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Wheretv bifj(,f 1,s can a third positit fb1(vsifj, ,ve charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total of7hp mztiaq.t ;t0uhv *.i;.le $4.0 \times 10^{12} \; electrons$ 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 )ll;6bqu 17wy5xml.otd 0t sqfixed proton some distance above it. How far above the electron 7l0.1 ;qtuo6 s5qw)xl m dybltis the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thread ajf:ilsk52h:gs 5h:rs which are 30 cm long. Both are given identical charges, and the elec2hlafh5srs:5k g: ij: trostatic 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 mszc mn9)7jkuyx7n7f -yv jd7.wbw9 l)agnitude of the electric field at a distance of 1.0 m from the nucleu-7lc. sy7um 77zfvbk)n9nyd)j w w9jx s?

  What are the magnitude and direction of the electric field at a distanceezku/-xb 7h s3 of 1.50 m f-e sz 7/bxuhk3rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitu3ibx rh j 76 )zbnnzishm h)f5,(qv3,cde of the elecxjh, 6i3c)bs,i b)znvh7( z q35nfrhmtric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charg+l4c rtv(7np1a tpi.s e. What is the direction of the electric f p l4c.apn+17ttisvr( ield?

  A 5.0-C charge is 10 m from xj,atr+) tf+tz,/lmi a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the lo/f,a,+r)jml tzt i xt+cation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dist3sv.k -)nrhy8y1gw weance of 4.0 m. What is the electric field at a ye.vg1s)3hw-k n8 yw rpoint midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of antzg+ dvr 91) zl0v8wr meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field vlrtn9vd8zg+wz )0r 1 at the 30 cm mark?

  A 5.0-mC charge is placed a-ap6 v1 uhqu6jt the 0 cm mark of a meter stick and a -4.0 mC charge is placup6au1hj - vq6ed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3 cw*v4tppjze 9hno ;4*.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway be4*n ;9 pjvpzw th*ceo4tween them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. d2g2nzjn4a+ u5p9 h bve cd t31ztp00,(pkb bcThe last corner is occupied by a -3.0 mC charge. Find the electric field avgdnek9ub2(a3j0b p bc 2 ht+zn0p5pdc t,4 1zt the center of the square.

  Consider a square which is 1.0 m on a side.d+okfy5 kgj8p. 73m jv 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 magnitude of the electric field at the squarp5 kokg3j7vy.8+fd mje's center?

  A force of 10 N acts on a charge of 5.0 y9.h2,obo w0unng f/kmC when it is placed in a uniform electric fi.go u 2hofb9kyn n,w0/eld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a ,e 6 wtbh5x0qamass 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 electric field of 6000 Np58el3m bep)3k-y)cpv,bx8 (d uk mof/C pointing downward. What cu) my-eck,lxb8pdbp8 (v5)fokm3p e3 harge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plapc d6veg( vr8;4oanr) ced inside a uniform electric field, and is suspended against the force of gravity. What are th;r)( n4a co8d rve6vpge magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. Whatg9o g6 beffzf6l h+8/,p dpo*t is the magnitude of the electric field 5.0 cm from the sphe/hoeoptgl zd6 pf+*f9 fb ,g86re's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electr: j4/geg o80g)z u7pbcdqviu7ic field 6.0 cm from tgpqvo4jgiec/db :) 8gu zu7 07he center of the sphere?