State the law of conservat r nt 00tzq)t29zzorqbajdx+ .*b 1p*bion of electric charge.

  Is it possible for two negative chargj e)3( uiu oyvwi1mv76es to attract each other?

  Is it possible for a positive and0ava9zd i.sk .m5sr8 j a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. D4)uirn65wpxla ) g9a curing the process the glass rod acquires a positive charge axcawl ug)rp56)n49 iand the silk

  A proton carries a

  The model of the atom shomp9scy7sv rjqe5 75 tfzh: i ,e8q0o3jws a

  A neutral atom alwaylp; fk6o /wpcz9tz *nq,ap1ugq3a8)ws has

  An atom has more electrons than protons. The atom isnw3k sq:bt:t:.mfl i 04d +xv*+ uzpqf

  Materials in which the electrons are bound very tightly to the nucllyu;e4qyn3y6 ei are referred to6;y 3yn4qeuly as

  Materials in which the elect4ab5 n8-ug wunrons are bound very loosely to the nuclei and can move about freely within the materingnw-4a5 uu b8al are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar.9:a0mh1e 3tw jw5mtqk The end of the metal bar farthest from t0j3 t km9wemathq5 w:1he charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is ye f4 6 pd79asenniega*9;0qeneutral. They are placed near each q *f;daee6i7e9npne a94y0gsother 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 charge an electroscope positivel,e 1dipu)cdb* m1x qb+y?

  An originally neutral electroscope is briefly touchb 3c5us5ipadr/ n(;w:/ r u3u vis/nuied with a positively charged glass rod. v;w/ss/n5/ cub u: ni53du3r api(uirThe electroscope

  An originally neutral electroscope is grounded briefly while ab qq 5n uyr*5zw9:uaa2 positively charged glass rod is held near it. Afb5q5:w nrzuu2 yaq* 9ater the glass rod is removed, the electroscope

  A positive object touches a neutral electrosco tl;l 5knjp2zrpe5al8 s +t-9epe, and the leaves separate. Then a nentpe-25 rl ;lpz5l9 s+8kjate gative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charge8(uvgg-u mfl +s 0tcp9r isd*0d 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 firsil v tcurmd s8gp*(u0+fsg0 -9t 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 thawp(bg yq9k 9rt/(unaa yh+ .)e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is large7;++ktfkmow ki6bbogn s:v 81r in magnitude than the secs kkfo1+t mv76;ob b:ig8n+k wond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed ns2wa*i 1zddtyv:dp/ 1zs0(mc ear each other on an insulated table. Which statement best describes the electrostaticdw sm2* :d(a0s1 vzzcitdp1/y force between them?

  Two charged objects attract each other with a certain force.mfou 2 :t p 8o2xu:i,b/oajsw) If the charges on both objects are doubled with no change in separation, the forceia8,xfop :jbot s uow2:m /)u2 between them

  Two charges are separated by a distance d and exert mutual 4m6(eboiqtpm.p) l.a attractive forces of F on each other. If the charges are separated bp)6.aeq mi4m(lbtpo .y a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hapi3biw o9hl6 69zu for:pens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its o9rw3iob i6luh6:fz o9 riginal value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happens toe mv7k6w pi(0eze8 y9l the magnitude of the force on thel ep076 e(wvmk iy89ez proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a dist0)77nwh s f 0swisp-bgance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to)b7 wh07ifns-0gswsp the proton?

  An electron and a proton are separated by jafxha8(9s :*5kxvbl a distance of 1.0 m. What happens to the size of the force on the proton ilh as5vf(*x8 xka9j b:f the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the ceni068 dtmrcrc/ ter of a square. When a second point charge of -Q is placed at one of thr8c/t60i rmcd e 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 ofq y+tkw)9ew2 zm qzfssh06f* ( an equilateral 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 0*f t ye96wfs)khqm+2 zszw(q 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 vz/9*i1hv baw(9blhe zector?

  At twice the distance from a point charge, the strength of the nb58 qy /ax6thb.qwc)electric field

  Is it possible to have a zero electric field value +or5 xmz3kqa(between a negative and positive charge along the 3kzaox 5qrm(+ line joining the two charges?

  Is it possible to have a zero electric field value betwtog)b*fx rd/. 3vcq( z ,6jsdkeen two positive charges along the line joining the two charkvg),f6o*st 3.c rjd z/bdq(xges?

  Electric field lines nen +fo ;ca8j4053 hjknz3johazar psitive point charges

  The electric field showkq .-8m r2 jyq.l)ujabn

  Can electric field lines inters2irt j6 ,p-/cj5hxu sso0cj3q ect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniforr0kb:t l:m3zrz2, f.z b;/y sbe/iy xfm electric field. Give a statement concerning the el0fs b rk xe3 l/zyibz2,:r/ yt.mz;b:fectric field in the block's interior.

  If a solid metal sphere and a holloi3ida9l5r.sl 3c/pq m w metal sphere of equal diameters are each given the same charge, t3ca 5mis r/ i9.3dlplqhe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where yziy64o yz)y 6q vl8l2a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surface?)qi6yz zvl oyl4y6y28

  If a conductor is in electrostatic equip rld7z3u7aq 0z00xo 40rts9y 3zif onlibrium near an electric charge

  A positive point charge is enclosed sq65v(a yfo9lgipq mnss:,0 fq87bf 8in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field oqyp ss,is0avf8qf8:n 7 5gq69 bfm(lat a point directly above the hollow sphere has

State three properties of conductors aw2:i7 qlwyz;in static equilibrium.

State Gauss's law.

  The charge carried by one eleca0)d6 +bwyo jaux(1d k7qmup6tron 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 chargvxi+/l5 h.mlsx+bk nn2ve: ; rj2wc,6;d wf pze of +2.00 mC. How many more protons than electrons does this ldi,bwn f5/s2x.;jnm+vhp:;l2r k w6 vzc+xe piece of plastic have?

  What is the charge on24xq9e zp8 tfw 1 kg of protons?

  An atomic nucleus has a ch mif5bofr6vvc2 - 3u ve80pf4barge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by k7bfm*zh e3s9 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electrbkh37fs*z9e m ic force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0gxuv tojdsk ,cb3ns)i( .,73v 2*lmvd N. What is the mas7d(cd*xg buls2.v iov, ,mnt j) v3k3gnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 Nl 6/ 6gagju35c*qg*1ei5xzqu6 uesx d. How far apart are they?

  The force between a 4t5.z0utjdi t pi8n6dv7xk7f $30 \; mC$ 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 forcet i+ gy5(rktn*. If they are moved to a new separation of 8.0 cm, what is thitgk *+try5 (ne electric force between them?

  Three identical point charges of 2.0 mC are placed on )3g 61ubeweber +*g bdv3bo:athe x-axis. The first charge is at the origin, the secondea6dow bbb*3ebrg) e :+u3 g1v 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 charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is pl2o,dn c vd arne:(((dzaced 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 dirno:( (e2c(add,znvd rection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 cz97 k,etkiwuv2,w un-eh1q0mC 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 3.09kev2, 1uw7- zte,uikq cwnh00-mC charge?

  A point charge of +Q is placed at the center of a7 dx9lnnii/;*mwycyf )8p hj61l5ru b square, and a second point charge of -Q i 58c nm bwdln1fl*)hir9yjy 76xi/p;u s 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 is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC iwt :ke/b-nz)3cr(7qme x;l, sr i: btis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thr:):z (c-tt,qn7/ xb;kiwlsm rb3eeie 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 m); Q3 = 5.0 nC iko-:ieq- +c ahme 3ic+s at (0, q -ec-he++imao 3ki:c 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC 8q3o dmkhz+m2are placed at the vertices of an equilateral triangle which measures 3khzm3 q8m+2 do0 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are sepvw:mu2 /w, zz(txgfb*arated by 3.0 m. At what point, on a line between the two charges, would it be posu,2:*gmzfbzt(w v/ xwsible 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 and a +9.0-C cha; kbehc; ao35 y*qwcd8rge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the nebd5o 3 cwk;q8;*ch yeat force on it is zero?

  Charge +2q is placed at the origin and chargtmzpi 5f*45afu u/rt(e -q is placed at x = 2a. Where can a 4taf5 zpmu5 f(ur /i*tthird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. wadk10(eaip7 n/u3 hr 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 gr zt.yrn* lc w,fg:uj5)avity by the attraction of a fixed proton some distance a ) r*yfzutgjc:ln5 w.,bove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threa7f4 3vig3 ttmbds whic mttvib4f73 3gh are 30 cm long. Both are given identical 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 ha94dl9) bjx rtm. 3vbjus a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 9x3r ulv b m)9tj4djb.m from the nucleus?

  What are the magnitude and direction of the electric field at-en wv7)ab- p+rv.rx w a distance of 1.50 m from a 5 n .v+pw ab-r7)ex-rwv0.0-nC charge?

  A 5.0-C charge is 10 tej+1 ;k/lnpum from a small test charge. What is the magnitude of the electric field at thek;lu t e+/pjn1 location of the test charge?

  A 5.0-C charge is 10 m from a small test c.wb jj+qej4fm)(l 4i xharge. What is the direction of the electric f .)qx wfel+4ibjjj(m4ield?

  A 5.0-C charge is 10 m from a small test charge. What e(gpwrl7 -/n vis the magnitude of the forcenr7 /lv-ew (gp experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated byst8fx zu6 iw*9 a distance of 4.0 m. What is the electric field at a point midway betwees8t69 wzf iu*xn the two charges?

  A 5.0-mC charge is plavl z6fn./rqxz /cr0vy4 h8zy-ced 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 electric field at the 30 cm m0z f.6rzyxlhv/-c/ qr4zv n8yark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC 7+tz+hm(dy lqp /biuraz*3i 2charge is placed at the 50 cm mark. 7+l mt(3bzidy2iq zuhr +* pa/ 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 ap0kx0e ts.jd wa.)bh -nd x = 0.20 m. What is the magnitude of the electric field at the point midwayxp a.h0- db.wj t0es)k between them?

  Three 3.0 mC charges are at the three coro:rem8n:s px1 ners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the cenp:e xrs8o n1m:ter of the square.

  Consider a square which is 1.0 m on a side. Char3bj:h5 oa:j bzges 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 squajja: o3bhz5b :re's center?

  A force of 10 N acts on 3m 7w-c.ai f)whadde;a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this7-hedm3c wd)aa.wf i; electric field?

  A particle with a charge of 4.0 mod+) x /t ufnja+ysd*,C 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 ma 9wv2j. wdjy9ibn4qr; ss 0.120 g is placed in an electric field of 6000 N/C pointing downward. What i9v4 b2;wrwqdy9j. njcharge 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. T1r1ix0n no,n( f bh v+pi;ad(zhe ball is placed inside a uniform,ro 0ab dn +11i(i; hxz(fnpvn electric 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 ja s) + lyqgor:3d190vd*j opjf/hn-z+2.0 mC. What is the magnitude of tndl-dz qho :p90*3aj 1 fvo gr/j+sjy)he electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm ysdeyaqwq-g52/ 4 kl1carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of thed1 yqsg5w/2l ak-q4e y sphere?