State the law of conservation of elect*6i gd rau-:l g,zsck)8, xcnlric charge.

  Is it possible for two negative charges tr0p8*jh pe l6 z+jek+fo attract each other?

  Is it possible for a positive and a negatw6ujj,;0k pf( ddm x+tar7zi 6ive charge to attract each other?

  A glass rod is rubbed wituk 2 un04hqrf.n.8v nkh a piece of silk. During the process the glass rod acquires a positive chargen hn2uuf.rq.8 0 nk4kv and the silk

  A proton carries a

  The model of the atom showiz mk ksrq5,/l 5p:v-/ssm qr/s a

  A neutral atom always haa4kwo i4 /*vzos

  An atom has more electrons than protl6of2fcv;te51 piy 0o 2yk-7v gord;vons. The atom is

  Materials in which the electrons are bo sul nki;dx;xu76u8+p und very tightly to the nuclei are referred top ds67 ;kunl;x+iux8u as

  Materials in which the e- nsurn4rra)sze 2 9j7lectrons are bound very loosely to the nuclei and can move abjr9s)-e7rn2 zun4 s arout freely within the material are referred to as

  A negatively charged ro8o;k mp wolk6;7z. xpsqbc f;;3vpbz5d is brought near one end of an uncharged metal bar. The en .pm lqbzzk;b o8op3kv7 s;cwf6;x;5 pd of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plk+ 6itlp;lh/y aced near each other on an insulated table. Sphere ly k6h/p+itl;B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posit3u-esja b *tv )u4 hl-nt/w:hkively?

  An originally neutral electr c6ek 52x64nvh /0fo atariac+oscope is briefly touched with a positively charged glass rod. The elect+2ti5c nav0/akac o6 rxefh46roscope

  An originally neutra6k tp,h z8t3 mykgo3qk(y2wk.l electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod iy qtw km 3k2.o3hg,(t8zp6 kyks removed, the electroscope

  A positive object touchntx -a;- nwh/6n jev/xes a neutral electroscope, and the leaves separate. Then a negatinx xnv;wh6j/t --/n aeve object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charo lyh0lmwq 1fad. fftlx 7033(ged object 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 h3wf q10 y.(fof0 mad73ltxllforward, 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 Coge) m77otc* +ayrgut*ulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The n1kc 1by .liwxt3zi l*-t58qofirst charge is larger in magnitude than the second charge.3 b .nl11*5 yztxqok8i il-wct

  Sphere A carries a net charge and sphere +ryere 2s44:b j.rkq iv m;0shw40y ieB is neutral. They are placed near each other on an insulated table. Which stab40jr0w. seqyr+r h:yi4 e4 v2e;km istement best describes the electrostatic force between them?

  Two charged objects attract each other withbztg o vo7xf-m5 n6)u/ a certain force. If the charges on /on go)7tf5v6mu xb z-both objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert ;+d l;u uoftgr7 /g :1fxzbyw)mutual attractive forces of F on each t7;zgo+f/g r;y)d :luxbuf1w 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 Fzwp)eprw1x n*t1/* nnrzq c+5. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their t/ww1 5xn+e z)1ppq zrcn *n*rcenters 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 u5dp,k*6 o(9b sid+7kk zyc ptm. What happens to thk( ,k s p7c+i*5pb9tuoz dd6kye magnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton aq5,9-fl3ly yt ozpbx6 99nvuere separated by a distance of 1.0 m. What happens to the magnitude of the force on the first elec, px3unq95lzy y99feblo6t v -tron 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 e7 9qgcp53mlbzv:cd, happens to the size of the force on the proton if the electron is moved 0.50 m closer to the proton?gecv9 bzp5dc,7 :3 qlm

  A point charge of +Q is placed at the center of a square. When7l )-w:nnpp1lb u8wnc a second point charge of -Q is placed at one of the square's corners, it is observed that an pwcb1 nnl8 uw-:p)7ln 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 equilateral ha31ms h*s) yxyi99vntriangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 9ms x v)3 yhsyain1*h94.0 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 i,,rfey6tkz4 8 juaoh-s not a vector?

  At twice the distance fr qs-m5i*gx2z p0w7df l3nq+eoom a point charge, the strength of the electric field

  Is it possible to have 5;3*hz ix e)zf6t7ylysp:sz p.zlq +da zero electric field value between a negative and positive charge along syl+ ti67:pzh xy zlp5q* ed.3fs );zzthe line joining the two charges?

  Is it possible to have a z/l.n-wj,x ona: tt n*zero electric field value between two positive charges along the line joining na-w.tzo:tn,nl */ jxthe two charges?

  Electric field lines near psitive point chaf1+9l24tja kjavs2 qh rges

  The electric field showaf:gjd 14;zuen

  Can electric field lines intersect in free spatw) fhagte u zu+:z,z6 x+: fva0f4g:ace?

  A solid block of metal in electro-rsrtohc7l j,cm/3hg v9:8 ,/drfuj mstatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in tjv u8,drjg:ht mrs ,o//l3fc-cr7h9mhe block's interior.

  If a solid metal sphere and a hollow metal sphexbx1 ,7i hhg.ire of equal diameters are each given the same charge, the electric field (E) midway between the centeb1 i.,hghxix 7r and the surface is

  A cubic block of aluminum rests on a wooden table in a re(-:2a ffekto (sclf5hgud,q 4vi*7acgion where a uniform electric field is os,5vi-ufe2((fgk h4aat7 cq c f dl:*directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibflrm-v-2hasg1 y(sb-rium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundewg a 447bwrw237rd urkd. As compared to the case without the hollow sphere, the electric field at a point directly abbg2akuw7 r r rdww3474ove the hollow sphere has

State three properties of conductors in static equili)s(hjiw tsq f;)iiyb*u 3k-l/-* ouhf brium.

State Gauss's law.

  The charge carried by one electro;9 axf3rq ofd5n 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 hasz/wm721 qh0-md )0fnng snrdh :mcey9 a net charge of +2.00 mC. How many more protons than electrons does this pngw hn :z2mnm0 7fq90m1derd/sy) -hciece of plastic have?

  What is the charge on 1 kg of9u/4vi:el xci protons?

  An atomic nucleus has a charge of 3 v8kqi 4a0axi$+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 2pwb-/7 xrb idcm, have charge values of 2.0 and -4.0 mC, respectively. W bxrd p27-/iwbhat 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 is 1n n qhw:bic( yz/zbq/m)b27b3.0 N. n3qnh( wcb yzm72/ibq:/)b zb What is the magnitude of the second charge?

  Two 1.0-C charges have a force between the8l- jav qll4q:m of 1.0 N. How far apart are they?

  The force between a s 4a flce(wnei+(yo h:-j-go+$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force. I0m0q*zak4m5ix2p e .+sb ehegx,s1naf they are moved to a new separation of 8.0 cm, what is the electric force betw a+e,0bephi s2*0 aqx1g5z.mx ksmne4een them?

  Three identical pointw*x.d5rwuw/ h b: kd9h charges 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 the magnitudduk.hw5h9r:/*dbx w we 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 o,r5 ozx0yd xr3 7aa,v d9+imeof +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 the magnitude and direction of the electrostatic force which acts on e5,x+ 9dzi7d rmooa 3v0yrx,athe charge at the origin?

  Three point charges are located at ttkht8):: ls ai3nekvk9;xt* ohe following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = t lxkioa9 e:v:s *k8kth;3nt)3.00 mC 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 center of a square, and a second poin/; jq/4 l6dff e+rswtkt 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 third charge of -Q ikt+sqewfrd /f;j/l64 s placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 zc /,f ;0d/ek-kb qmxsm, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, kz0;x -de b/mfcqs/,k 0). What 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 a*roo1 m77,hqpw d vvlrox3m7tjp4: a2t (0, 0.10 m); Q3 = 5.0 nC is at (r ,a4m7o:pqvr mljv2 1ot37 xowph*7d0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical char.jv/j t1tv ox;ges of 3.0 mC are placed at the vertices of an equilateral trianglx; o1jvtj/v. te which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charg:xl0(27kjmb wwd uge.xy+k y) u2vhl4es of +Q and +4Q, which are 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 dymj exk( 2v xh.+)04yklu:wb7glw2 usuch that the electrostatic force acting on 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. Wh,u*i5u kig/ wot (*yxuere on the x-axis can a third charge be placed so tu (ygxw /io k5uu*t*i,he net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed0 .egmwks1-no at x = 2a. Where can a third positive charge +q be placed so that the force on it i w1e -gmso0.kns zero?

  A copper penny has a mass d y49; um/rwdfof 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 of gravity by the aj 4 irlos2g(:zozk4i5 ttraction of a fixed proton some distance above it. How far above the electron is the proton?25rkj(z4g s 4oliizo:

  Two 0.20-g metal spheres are hung from a common po6fo )iu-b/ v9j*gxejo int by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threadi 96ejfog-/*)ux jvbos is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge o4(7d:no3 u,)sl mgfyx xq 63ldsr4 plbf +40e. What is the magnitude of the electric field at a distance of 1.s( q):sxp7lb3ddyl6u mx ,gf n 4o4lr30 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of q0ip(z muiot5+tvw .n1 - fy-u3hfa5i1.50 m from a .+iwa mi-v 15 -hn itt3zfquup5(0ofy50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the eo+i.v06b1 ei e2 pg1om)gi n 7bvst,ablectricv7e.b b e1tpm,b61ii)g vo n2o0i +sga field at the location of the test charge?

  A 5.0-C charge is 10 m from a small tes-(up jw 0jv3l29 w)wfuc ve;e)dub 2bet charge. What is the direction of the electric fiele wd03j;cvwuj(fv9 uebe )) -wubl22pd?

  A 5.0-C charge is 10 m from a small test charu w8kju 6w.6a x)t(cqvge. What is the magnitude of the force experienced by a 1.0 nC charge plwckx j6w qt8a.u)( 6uvaced at the location of the test charge?

  Two point charges each hah,; uopjju 5,6mnbgp:ve a value of 3.0 C and are separated by a distance of 4.0 m. What is,6;m np: 5 ,jpbugoujh the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm ,(bs34-18 vyvlskmi1km d rnwmark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is th318mys4drvkkm-lv snb ,i 1(w e electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm marku 0)x50mk(fzy4o6 pt7voqtjz of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on 4xzz u5)jtmpf70 06oko ty( qva 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 = 0.20 m.-j4tw u 60dve)gelquzn)l/(m What ist-u) wu(vjg0/nmdeql ez46 )l the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a)/q9p +x35tbq rfhz/vot (1rtwym ml 2 square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center q +zmh5qxw//rtp y3mr (lof vt)1t2 b9of the square.

  Consider a square which is 1.0 mw+hwp 9kl .7cl on a side. 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 k+7lwhp9c. lwthe square's center?

  A force of 10 N acts on a charge of 5.0 mC 5 1kt0zg sq5cpwhen it is placed in a uniform electric field. What i5 tgsck05z 1qps the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mayl) ,z.7acql)bz c4lp;6cg ra4qs hf,ih7; fe ss 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 electri1l ph o t)/x,+rvy*jpwc field of 6000 N/C pointing downward. What charge must be placed on the ball for it )*,vryp jwtox1/h p +lto be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The barcg 1a4oho;8nll is placed inside a uniform e gorahocn8;14 lectric 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 is t17 uo-z+gm qtehe magnitude of the electric field 5.0 cm from the sphere's suzugq etmo 71+-rface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electza g/ qnf+hom-u -b62xric field 6.0 /a+nhz 2-x -bu6fqmog cm from the center of the sphere?