State the law of conservation of electric charge.ewk7/ms iv (+j

  Is it possible for two negative c3ng8bg tp/ gn/harges to attract each other?

  Is it possible for a positive and a prb-0/ t4ykwqnegative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During gln+ehzeqji+dw-8n1 ( /d 2zy the process the glass rod acquires a ejqn g/ +2+z8z d-ydie1whn(l positive charge and the silk

  A proton carries a

  The model of the atom d* 6;xkpdxfb0shows a

  A neutral atom always hasmhfew r(l1yrcgm 4:e 77kmu 71

  An atom has more electrons than protons. Th( +hqj)sd sry:e atom is

  Materials in which the electrons are bou47wro *u.wu51rizqi o nd very tightly to the nuclei are referred ti wuzor*1 57i4o ruqw.o as

  Materials in which the electrons are boundn0na,:hig2) b 3;6r/kli0 depfqusuy very loosely to the nuclei and can move about freely within the material are referred to/)n0k ,lynuhsid 2pribfg 30 :aeu;q6 as

  A negatively charged rod is brought near one 8qdvv0 kv b,6 db r2ley c,8*aaf0sm4eend of an uncharged metal bar. The end of the metal bar farthest from the charged rod wi y4ql2ab6cbd me8av, k vsr0*0fve d,8ll be charged

  Sphere A carries a net positive charge, and sp9;7 pgx fy+qwh2ce,dhhere B is neutral. They are placed near each other on an insulated 7f9gq ;2hh,d wexc yp+table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electriylki87)l/ k-kekun3) t3 2allwy3c woscope positively?

  An originally neutral electroscope is briefly touched with a6jkiy a3oou/:6er0x-tl;z z x;(bxo h positively charged glass rodh eilr:0 t/(3;j6zb xxxyoooz6 ;ak-u. The electroscope

  An originally neutrac/ .crd3818uwx bc gdll electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electrccdgwd 3.1/r 8x cub8loscope

  A positive object touches *e l4-hjlto:j)k+) nc j8xo uea neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not+to4nljjeu:c klo8- )h je) x* touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated , aoiu +n6*t*h tes ph.agpg6*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 forward, but does not touch the negative object. At no time does either ball touch the negative object. What is the final charge on eacg6aagpe i* .*s,hh *po n+ttu6h ball?

  Charge is

  What are the units of th7qi qm681 g7c oy1mknde Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge wh3optel6gnmj:q6 1r p*batv0 6ma ,3is larger ilro6anq3bt6 1ma 6pp3*g0:j mv ,ewhtn magnitude than the second charge.

  Sphere A carries a net charge aupg1,n28 lrwik3.eabi n wx +2nd sphere B is neutral. They are placed near each other on an insulated tabg8 wn1+p .lin erx,i2wbu2k a3le. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the c*e-sbx14 hm9twn-f-m*mxh z aharges on both objects are doubled with nom mb x1-4nzhe*-h * ft9wasm-x change in separation, the force between them

  Two charges are separated by a distance d and exe+ .:bjcc ) -bzajlskr5 tso,;frt mutual attractive forces of F on each other. If the charges are separated by a distance of ,sl5zj: sjbc+ b.c rkao);-tfd/3, what are the new mutual forces?

  Two charged objects attract each other with a force:5o r3u.tsd(vc;v4/ myqrag n F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separat(yrrc3uoamn;g / 4v tsd:5.qvion 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 dij7a(f04 bkf qhstance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electron?kqf7j4baf0( h

  An electron and a proton are separated by a ) ag/ a 3( s*5c-1rtvqosktpb-*xvvuz7yqvx2 distance of 1.0 m. What happens to th /1-*a 3v* q b us2g qa-zt5ycs)pokvxvxvr(t7e magnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m.f4 rtg. f (0ewefg/:(fq+sznh What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the p nqgtsffee(f4r: f +gw(hz0/ .roton?

  A point charge of +Q is placed at the center of a square.3 ix6 kltyd4i84s hxk* 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 posik8hs xdl 4x6ii*3ykt 4tive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilaterft)l4 1otngpk(b))bnqw8a 6w al triangle. When a sec 14wonbpbwt k)fl 8)(6gqat)nond 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,vu2-c+-hmox u tbo 2 bpzds46 is not a vector?

  At twice the distance from a poii7(1fm-h m6oicc t1 nknt charge, the strength of the electric field

  Is it possible to have a zerwcgqrufh7j)z1f6huf/m:c 2 7o electric field value between a negative and positive charge along the line joining the two charf/q:1mj c 7 uwu6 2)rgchzfhf7ges?

  Is it possible to have a zero electric field valuebo1qevwx7xr a)l3b8t );n g6p between two positive charges along thewv86 7g 31)rbxlbxq)tp a o;ne line joining the two charges?

  Electric field lines near psitive pot)x0i s h3ho(rrl.t xq.ex7 0qint charges

  The electric field shown r 6 wxfj-)t/zy)g0jmtz2 1)8jspvab ;i4najy

  Can electric field lines intersect in bua s;,g3+lahmbe/,lb 8pt 5b free space?

  A solid block of metal in electrostatic equilibrium is placed in a unifore*;zzpxsv*lpki1ue p 23sl,-m electric field. Give a statement conk2i z;p sv*sulx e*p3lpe-z1,cerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters art8pb4l7 miqlhq b,rytgx*n2/pwh ,z:y33s * se each given the same charge, the electric field (E) midway between the ces3ipthrly 4,xg/z2,8*blbpm7:hyq * ws3 tnqnter and the surface is

  A cubic block of aluminum rests on a wooden tabl -,bmwdzqn1z+e in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the blocqn -wdm+,1zbzk's top surface?

  If a conductor is in electrostatic equilibrium xx1cwerz05p3wfm ty-75 a j;anear an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groun* tk 82zfyy9ugded. As compared to the case without the hollow sphere, kgf92u* zt8yy the electric field at a point directly above the hollow sphere has

State three properties o-:zyg 9mu( oblv.g:tnoi 5, llf conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electud 5q7+tz + +brytvb0gron 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 chaj9d 1avh pspx 4778d )/ pvc7l4f dq(xqgzia-irge of +2.00 mC. How many more protons than electrons does this piec zpvjda4-v7 phds)lqpciq/xid4 1 a 9x7 (f8g7e of plastic have?

  What is the charge on 1 kg of prot*-06 hcgsf*a ievjwl :ons?

  An atomic nucleus has a i5t2+jn ovuht3 9wx-h charge 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 - ).l-,(rmd-dux prp ip4.0 mC, respectively. What is the magnitude of the elect(d li-pr).m, -dprpu xric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force bh2 +mtfp w :7yqqhb4j6etween them is 1.0 N. Wt64:pfw7j+hhbqm 2yqhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart ac;x +v-g) asu u/ z/ms,sg.+wxv yefu5re they?

  The force between a 8vh +,xsxtj; t$30 \; mC$ 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. If thes q;y9r db 7moud492tay are moved tod2us rdy o 9q74;mabt9 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 ther48ot . et2:ec s)zcxp 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 c 2ecep).txsz o48 rt:charge at the origin?

  Three point charges are placed on the x-axis. A cbza9k9l;y,nmnqjbmx/dwgr 6 9qn0:5 harge of +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 w 9/qa gnjn9mm0 nx;b:lz6rk59d y,qbthe charge at the origin?

  Three point charges are located g.vn-zly +sq4oi 3)r tat the 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 onrn-.qy igl v43tzo)s + the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and wj)xr6p1fw 2qa 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 wxr f1w)26qp jacts 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 m); Q3 dj8pdr su90a( = 5.0 nC is at (0, 0). What is the magn(u sd8dp0rj a9itude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 n bzagl.bg m0z ly8),*cC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of.80 gb glcy*),bzlazm the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at 5 +ulizb4qdhr 9iju49 the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forcbz 54 uq9+i4irlhdju 9e which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3 f5wk 4d,g9sve.0 m. At what point, on a line between the two charges, would it be po9f,g4k5sdve wssible 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 origin afzq-bsqr6 w ed19e6n j28fb/2gu3 y crnd a +9.0-C charge is at x = 4.0 m. Where on the x-axis cazenb8wsq je29dr1u6g2 /ff6 r3q -bc yn a third charge be placed so the net force on it is zero?

  Charge +2q is placedc0rw :4c d-htcjkb90t at the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it isjc9:4h 0dtb w0 tkccr- zero?

  A copper penny has a mass of 3.0 g. A totazt4:m mu,bb;/rg 4p1nnvii-i l 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 g6t: pch3*vbwu vs-.j by the attraction of a fixed proton some distance above it. How far abvcs jht6p v.:ugbw -*3ove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductibs. v-h; *lesdng threads which are 30 cm long. Both are given identical charges, and the electrostathbsev-.s* d;l ic repulsion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus hao /0 qxni;lftk -;;lcfs a charge of +40e. What is the magnitude of the electric fieldnik x;; ffcoq0t-;l/l at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distancehv32f;8pwq5r w vuhp:x4ia ,p of 1.50 m from a 50.0-nC char843 i u: v2a5f,whxhpqvwprp ;ge?

  A 5.0-C charge is 10 m(: ;: j.d99waawljiieo6trqk from a small test charge. What is the magnitude of the electric field at th:j(;q o kldwj9er9a:wi. 6 tiae location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction 7w mstnln/ mdi/ofvi 8+24o /zof the electric field+/4 m svntnzo2wdfi/l8/i7 mo?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of t.gr9x,ibl tkf4.y n7y he force experienced by a 1.0 nC charge placed at the location of the tesx7,bf yygnk. .9t4ril t charge?

  Two point charges each have a value of 3.0 C and accyj, (dk 3ob )7/tltc: xshvy*rf1( pre separated by a distance of 4.0 m. What is the electric field at a point d*tjxyvcr3bo1c(,ypl 7/c st:k)h (f midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a j/k:vcn;vs : p-4.0 mC charge is placed at the 50 cm mark. What is the elect:nv;:vc /jpks ric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and acx8c/c .y -asz -4.0 mC charge is placed at the 50 cm mark. At what point on czcy .s/x-8c aa 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. u, j1/qykqh3acm35 f gWhat is the magnitude of the electric field at th,3fu j5qmgkh/qyc3a1 e point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m.+l czvf4+o5ag The last corner is occupieol5 +g4zav+c fd by 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. Chargeh ,63 im1yxu.gn. upvns are placed at the corners of the square as follows: +4.0 mC at 16.3mnpgu nh ivxu,y.(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 vv /c- jn tqikf2cy.*,mC when it is placed in a uniform electric field. What is the magnitude ot/ vj-cq.,k icn2fvy*f this electric field?

  A particle with a charge of 4.0 mC has a mas.b1cohs 9wgjoxl: ): gs 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 zronc4gi5o k6 4ciw0g66z)jjin an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspend) 460jrg6oc z56cwkgonz j 4iied?

  A foam ball of mass 0.150 g carries a charn7y.udf nws;voc(5+*bw+mh j ge of -2.00 nC. The ball is placed inside a uniform el5.c d7;b+j (uvmfw*so ynnw+hectric 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 c c 6-p0v73nm)3ql zmcy mtqw7mm carries a charge of +2.0 mC. What is the magnitude of thm6z cm73v0lwtmy) cq3q7np m-e electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a 948 p v0z2 qvsrcw)jzm 96kyfa3xnjl4charge of 3.0 mC. What is the electric field 6.0 cm from the center of the spc9vr6 4wj2 j8xsn azk yp)v 403lfm9zqhere?