State the law of conservation of ele,3s9nra7q+ncelmh )u9) mawrskn- 4zctric charge.

  Is it possible for two negative charges to attract each ozsb hb723c/6sy1m+0c;ownja/u j asa ther?

  Is it possible for a positive and a negativ 6ycxt a3yd.uadw/:)tm3 s ag.e charge to attract each other?

  A glass rod is rubbebv4 e7 d4tq0xt4t.ku l3ka4 lnd with a piece of silk. During the process the glass rod acquires a positive char laetx4 4t4 kq3b0tnv.7 4kuldge and the silk

  A proton carries a

  The model of the atomqb;o -d(7m8 p iyshrz+k1y)l/zux1 pd shows a

  A neutral atom always 4*w ypl-x3ut56czhx 0xcd n/* .hsuab has

  An atom has more electrons than protonje+f x 03m .;6ddfd2ec w;anxy,ilws8s. The atom is

  Materials in which the e ; 7rcat.d*kwjlectrons are bound very tightly to the nuclei are referred t;.jcraw *k7tdo as

  Materials in which the electrons are bound very loosely to the nuclei .o:skqxp8temdclmu, .2z o54 m0cypyh9xt./ and can move about c t5y8pmo0e x9 .mqhl.4:ktm/oyx.,2upcz sd freely within the material are referred to as

  A negatively charged rod is brought near one en1r6rs+*l aa rzb w5c:qd of an uncharged metal bar. The end of the metal bar farthest from the charged rod will:l ar+ r5wab1c sr6qz* be charged

  Sphere A carries a net positive charge, and sphere B inu/bh tx5z 0o2s neutral. They are placed near each other o u0x5oz2thbn/ n an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an e9(6*bl jf37 1 ocjrsjhqct6 dhlectroscope positively?

  An originally neutral electroscope is brsfpkd2 ;cra,* g x9o,niefly touched with a positively charged glass rod. The electrdsrk a2, *9x;on,pcfg oscope

  An originally neutral electroscope is grounded briefly while a positix/ xmi 5:, y tbbx3,,fygtn*wkvely charged glass rod is held near it. Afik ,,:b/ 5ynxtxg3xytf, bw*m ter the glass rod is removed, the electroscope

  A positive object touches a neutral electrosv1gtkmu . -m0y ja,k;yp/yzn3cope, and the leaves separate. Then a negative object is brought near the electroscopy/zg t-0u1ny,3jm .kvyk p;ame, but does not touch it. What happens to the leaves?

  A large negatively ch) oehsot7nr;* m:0 e7cmzj-iiarged 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 fi;7 ) o*ht0 mminr-sejeic:z7o rst 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 t+dex;,k ,m cks 0*bbxkhe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated c s eza.w32.f8h*kmpwby a distance d. The first charge is larger in magnitude than the secz*ke8mhcaf 3 . w2sw.pond charge.

  Sphere A carries a net charge and sphere B is neutral. The1dq01ei6t, xh mhvqpsz t6f + nq;q:o8y are placed near each other on an insulated table. Which statement best describes the electrosta tv0n168d qieqom6:qhx tz+sf1p;h, qtic force between them?

  Two charged objects azf dk4 -n:u0xwttract each other with a certain force. If the charges on both objects are doublez:xk4un d0 fw-d with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attrac:, xr53cjfrs4 3e h0kd q*fwystive forces of F on each other. If the charges are separated 0y f*wxr: 3qjc3k,e r4ss5 hdfby a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What h 5rni/ggeaxq ,1x5,k;kx zv (nappens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance bkg,x;n (vkg ni,xa1 r/x eqz55etween 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.ms lea i(q*0 r4y8ths.0 m. What happens to the magnitude of the smel4 a8h( q stri.0y*force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are sov 4jv*34bq kcwpik/w, )o4hp eparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a*o w 4ipjkboh 4 3v)v4pc/w,kq second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happehk xbduxmi,9 d/ s*g;uf5 p7i1ns to the size of the force on the proton if the sf 71m9 /x5hp; u,iixddb*k guelectron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a segue2 ff8b7/ c c cyk98qsz.ao3cond 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 the3o8u byq7/s fc.ccgez2 98kaf 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 tri /i5-sxjs/a3 fmho* 6ckyv nc0angle. When a second charge of +Q is y anc/k0ix/hmsof *j653sv-c 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 vecmslp47 2fm9vg tor?

  At twice the distance from a point charge, the ste7k o(lvht6:s rength of the electric field

  Is it possible to have a zero elcvb3w 6r8ld ,jectric field value between a negative and positive charge along the line joining vbj 8,rc 6w3ldthe two charges?

  Is it possible to have a zero electric field value b-, wbwc 8/lemeetween two positive charges along the line jowc,m b elw8-/eining the two charges?

  Electric field lines near psitive pol831kpi q 2q42pnb bzuint charges

  The electric field showndv+p1kyto+ n:g0fy 2t

  Can electric field lines intersect in :+nzot vl9 w pb.5gpg5free space?

  A solid block of metal in electrostate*sncc) ;xp t;wik;i9 ic equilibrium is placed in a uniform electric field. Give a statement concerning c e; ki*txisncw);p9; the electric field in the block's interior.

  If a solid metal sphere and a hollow metalf ay, mc-;;n:z oy5mr0ogdw. y(8pski sphere of equal diameters are each given the same charge, the el. zik 8;;c-ym,ds0fmy or ypo:5na(gwectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where plof4pn6 9 l-da uniform eleclno ppfd-9 64ltric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium ne5 .57 .dwc8fjbdxfho: b0b-i mr jzbw9ar an electric charge

  A positive point chargeeriw9a, - cj0q /2*mfq7febkb is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollor2beq j9-kqac0if, webm*/7 fw sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in jg eb17-m :vyd7br) uf:x (raestatic equilibrium.

State Gauss's law.

  The charge carried by one electron /ry17+hf -9ogww2 e3 xuxwg9l1dy mmcis $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.00 mC. How many more protons than *(u. wmeqc)w..u qsoj electru*j q.(u .c.owsqw)m eons does this piece of plastic have?

  What is the charge on 1 kg of protl8lxy83a ja u1ons?

  An atomic nucleus has a charge o(9kxfgaw9x 7o f $+40e$. 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 erhdm 3ve1l6 miff6 pa-.qw. 6values of 2.0 and -4.0 mC, respectively. What is the mq.-3aidlmrmf e16hp6wvf e. 6 agnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 0shf5lqa v*r uxuer0:2hy1 v(1.0 N. What i*u0lyuhvx5:h 0 fqr 2s1 vra(es the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are foni 4e8g:/str2wpz,they?

  The force between a .j 0;bg5ni fwh *5eifo$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience4(c2- mjjanoax ,0pih a 1.0-N force. If they are moved to a new separatioihxpcm0 a4j, j- 2na(on of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis.4n4uca-2xg h7 yxkx7 m 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 magnitu ukmxc4g-n xya7x4h72 de and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges arc.y fn7hd d-,z;6k4r ccvrfr+e placed 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 +4.0cr 6kfcd-r4,yd vhf7;c +r z.n 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/; ga 46frq;dd2 xr tkszxhk/3 at 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 on the 3.00-mC chrgq x24d/ hr s;x dak;/kt6fz3arge?

  A point charge of +Q is placed at the cf2t tvh m)qt)xrl0g9074xbph enter 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 third ch)hmg 20vq txp7l)xf0b htr4 9targe of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is(bhxr,s 3lpy57-ky e e at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on th,hes7k 5exl-p3yry( be 5.0 nC charge?

  Q1 = 6.0 nC is at (0.av0igft r(0x *30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the axtv00f *( gridirection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equifuqy:a f m5(:mlateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on aum f(5yfm :q:any one of the charges?

  Consider point charges of +Q and +4Q, which are separated bs:qa )):en 3 m5vixulry 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 ze5:ma3 s :)erixqvlnu) ro?

  A +3.0-C charge is at the origin and a +9.0-C cj imsa)9fxoa* zr2q,t: 0pa1rharge is at x = 4.0 m. Where on the x-axis can a third charge be p:rip9sfx2 a*,1oj zat )a0qmrlaced so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a2kiqp3gp i. r.. Where can a third positive charge +q be placed so that the force on it is zik 3pg.qi.rp2ero?

  A copper penny has a mass of 3.0 g. A total o+4sdx4y;4h: sy hf-hb sz5n-xwwj ym1f $4.0 \times 10^{12} \; electrons$ 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 attractiob c50pqfq41s9fh1o m gn of a fixed prot41 fsg1q9cb0mqohf5 p on some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thv8si 7adv 3 +x gru(fa-1rou,sreads which are 30 cm long. Both are given identical charges, and the ea8s oguid-7sf13x(u v ravr,+lectrostatic 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 id j0qz.x xu sv+-mbgbo: )u;o4b lj/8of +40e. What is the magnitude of the electric field d .q)b:o8g;mo0jv +4xbz/ubslxj - iu at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.zymb,w7sycr ph/qd62gw,q) ptf17 9 m50 m from a 50.0-nC ,1d f6/hqq)prc,2m7ms wy79gyw zpbt charge?

  A 5.0-C charge is 10 m from a smvpf:ul4o81,kk pt4 saall test charge. What is the magnitude of the electric field at the llouv p4s8t,1p :fak4kocation of the test charge?

  A 5.0-C charge is 10 m from a3a+rn.+iwkok yqc 8l; small test charge. What is the direction of the ek+ + no8cq3ilk y.wr;alectric field?

  A 5.0-C charge is 10 m from a s (m /e8u3nbg6uix xwuir-rv3+mall test charge. What is the magnitude of the force experienced by ag (xiuxebnv +m3uu38 rw6r- i/ 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 k.sri 135y.b x y 7b ix3ie(9wqwykzg5C and are separated by a distance of 4.0 m. What is the elek57b (iigx r5 9y3 weqzsk.bi .wyxy31ctric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC ceyy 3u7slv1gj8m s l,*harge is placed at the 50 cm mark. Wgmlj3yy*v esus1l 7,8hat is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm1blq:4jb p ;ky mark of a meter stick and a -4.0 mC charge is placed at the 50yk:q;j lb bp41 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 aryvqj) 8gzyu2vqmf)0po z*.o7 -k4kb 6yrir 2ze placed at x = 0 and x = 0.20 m. What is the magnitude of t m) p7qvj4kv6u2fgyq8o k-2zb. y i*yzro0r z)he electric field at the point midway between them?

  Three 3.0 mC charges are at the three cornozl6yb4 tck.x; .v (kv5o2v juec:n- xers of a square of side 0.50 m. The last corner is occupied by a -3.x(y.46kencz 5; x :c2kvootj.l v vu-b0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a sid+cnzvi2 5m)k+( ;xs,jt,y u zjeu5h dve. 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). Whjn;(,yjuihm5t2,5)z v+ zux vkeds +c at 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 mb0yq4+f-y b7le2e22 pygt ffwhen it is placed in a uniform electric field. What is the magnitude of this elect feg+222y7- 0lpbfmy4fy tqebric field?

  A particle with a cha3iw.9ywi1p-jx6 gc ijrge 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 placed in an electric field w279pezeo0 d-mz unlo 2k+ 0d.*cjks fof 6000 N/C pointing downward. What chad zkzof72+ 0*e0pokjn.mwld 29sc e-urge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g cf*37 ylo3q1ts -lniwavu8q p/ arries a charge of -2.00 nC. The ball is placed inside a uniform q/np71wuo fl-y*si8q 3v3 talelectric 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 ca j.g70v4j zxd3jvdfa5rries a charge of +2.0 mC. What is the magnitude of the eax57 jfd3.d vjjz 0gv4lectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge ofr2 /xp rumm6i- (0npmn 3.0 mC. What is the electric field 6.0 cm from the cent pr(i/02mnu mmp-6nrx er of the sphere?