State the law of conservatiqda .g-69+lbva5 j*wmm0glw z on of electric charge.

  Is it possible for two negative charges to attract ebiph5 emzsvsnfj j78 5090n qcrk /1.nach other?

  Is it possible for a positive and a negative charge to attract each oth3 u-l ;n m96fxlq1scbhld7pb8er?

  A glass rod is rubbed with a piece of silk. During the process the glass ro xwkwn:s8dn1,d acquires aww:dnx, 81ks n positive charge and the silk

  A proton carries a

  The model of the atom sq42ei er0hzg /9 hkjl)hows a

  A neutral atom always 6txa4 k8u)dq:5gz vn khas

  An atom has more elec,z+)yx8y*b qh 5aq,-rsw.k cm , dwfhitrons than protons. The atom is

  Materials in which the ele,-dpt01 qj1 yzqerl -octrons are bound very tightly to the nuclei are referredr l-e j-tdz0p,oq11q y to as

  Materials in which the electm dmwx)m7cgdog786po9 t 6 d7nrons are bound very loosely to the nuclei and can move about freely with 7)go6dcgd d mmwotpn786 x7m9in the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metalk: m2k-eth )u06gxh ol e-ckq: bar. The end of the-ko2 tmlk6qh-0: g:hxeck)u e metal bar farthest from the charged rod will be charged

  Sphere A carries a net posiv07tm 8u k6fm+4 wejn2mpumoc :add0 ;tive charge, and sphere B is neutral. They are placed near each other on an insulated tablekvmjeu 0m;0:o68tucdpnm ma 47 d w2+f. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged r s7 g9)kmkgi(gor5)-avifa5/ 5 ttq qnod charge an electroscope positively?

  An originally neutral electroscope i3r in1z, h+up-bl fpy3s briefly touched with a positively charged glass rod. The elfp +-nul3y3ipz, hrb 1ectroscope

  An originally neutral electrogp icw20(e ):a2lilaxscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is remop a20a(gwcel ix)2li:ved, the electroscope

  A positive object touches a neutral electroa:4t+ ginfdqn.g8 ,rx scope, and the leaves separate. Then a negative object is brought near the electroscope, but doef8x .ging,:n +q4ta rds not touch it. What happens to the leaves?

  A large negatively charged objecgk x h)4q d6kvv-a:p5tt 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 t d6)gtv 4qpx-akv5k:h he 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 the Coul/w3ey; t n;pyvomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger n1s5a wt+e 0j3l+b.qfoqygd-in magnitude than the secf bqtq+ 0+eaglswy-.d135 jn oond charge.

  Sphere A carries a net chaomxk6+gz*erpq f0i8,rge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describesxgm ro*+ 0,kfz8p6q ie the electrostatic force between them?

  Two charged objects attrak-ek z,ux*y;z ct each other with a certain force. If the charges on both objects are doubled with nx-z k;*ze uyk,o change in separation, the force between them

  Two charges are separated by a dik8h93ym,r e 37zvju histance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the newu,9y3 v7 ehrj3 8mzkhi mutual forces?

  Two charged objects a1jb d o854 q/0xg5ayb0ygkyoew nf5r gr(m/ *kttract each other with a force F. What happens to the force between them if one charge is do o*ryrgy0o/ 5bq d /(g4f 0mk5wbnjaxe58y1kgubled, the other charge is tripled, and the 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 separabc55x*wq*f a c/-zxxmted by a distance of 1.0 m. What happens to the magnitude of the force cz/f5a bx*x 5xqw-m*c on the 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. Whagtstn c5:21 1ws tb;qyt happens to :ttt5sb2;q1 yswg c1n the magnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are setgo:mm6)dttll( ) k/buv y)n0parated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 mkmv tm gdnto)ubl6/ (:))0lty closer to the proton?

  A point charge of +Q is placed a :lc0tgt7n g8r adc05qt the center of a square. 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 0g8c0adg r:7lct t5nqthe net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid5/rq os0w7*f )pfn rpe of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's /e50s fr )nfwp7q*ropvertices, 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 917xkldk srk 7not a vector?

  At twice the distance from a point charge, the strength of the electric fielr 1t sz+ag, dwfw(29uzzwr6-ad

  Is it possible to have a zero electric field vadlxdl n dax7ij /,22;qlue between a negative and positive charge along the lili2d ;/j,qdndl7x a x2ne joining the two charges?

  Is it possible to have a zero electric fielda+d 1mtnuq6y+ value between two positive charges along the line joinm any+d61u +qting the two charges?

  Electric field lines near psitive point gt9dq 3c :thjigi6*clrc so l/o8f94;charges

  The electric field shownr45e xbj sf/ oa0zb9ov 9),fza

  Can electric field lines inte z x(o os*50u:z 4:g,jvolbmrmrsect in free space?

  A solid block of metal in electanm:7nj wd2 ,7wlgkd9 yrz 2z-rostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric fieldd2n7 zdw w7lmk-nj,yzag:r 9 2 in the block's interior.

  If a solid metal sphere and a hollow metal sphere of 3 hq j : c5y5t3k5e7hevuht sch7,v-opequal diameters are each given the same ch5u-j3heth5qvcp ohs53h,y :7 evt7kc arge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden taf:un mh y*szu2*w;/ lfx0.)7bq xtuz rble in a region where a uniform electric field is directed straight upward. What7fsuwrx;lmz)bf u:.h0xqn/t* zuy*2 can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an ely/dy l5.b v7u;:;pihuk(qhsyp x/ /toectric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grr:c,ok (2cwonp b pkkg41 :t64t39n)mgjavoi ounded. As compared to the case without the hollow sphere, the electric field at a point6a3(1 k9rjvw t:p gooc 4 mtk,2p:nkign)cob4 directly above the hollow sphere has

State three properties of conductors in sd cy5llrz57n 7tatic equilibrium.

State Gauss's law.

  The charge carried by one elec:ni *ils1ez3v ss0e: w-j pt2peep53mtron 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 +2.00 mC. zk6l4su/2 oz o vkk2*i How many more protons than electrons do4*/kl ukzo6z 22kso ives this piece of plastic have?

  What is the charge on 1 kg codaw 0ysm . 1t*vy,9wof protons?

  An atomic nucleus has a charge 3 rfnf4b2q3h vof $+40e$. 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 -4.0 mC, r*:j c;vm/c 7sakvcc8 uespectively. What mc*cjcv8v ; :kaus/7cis the magnitude of the electric force between them?

  A 1.0-C charge is 15 m kv1zkmlabkbqo l*z11y8: :ng ;c5x q(from a second charge, and the force between them is 1.0 N. What is the ma8vgbkc kby111ak( loq z*n: 5 mlx:qz;gnitude of the second charge?

  Two 1.0-C charges have a n qw.1fcc xj 2htsn4fc5:te68force between them of 1.0 N. How far apart are they?

  The force between a *ucsv.k v/7hm$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experiexi- e;uktx f3x(0+xnnn0mtk 4nce a 1.0-N force. If they are ntk0i- 43t;mxnkex u(f+x0nx moved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mbonxdjskxoow4 80y ujh 48-)1C 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 magnitude and direction of the electrostaticd bj syx)18h o0ojwk4u- n4x8o force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge ofxw w0tyti-l:r0wx*d(b 1 jfq +2mz+qy +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 the charge at the orit1fy:0(qw y wld+2x r j *+0iwbqmxz-tgin?

  Three point charges are located at th bjiumi wk6-5*c1) szi,xnr.le 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 mag) xz1ln,*c65ibw i ui.kj msr-nitude 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 point cha-but leyl 9)l ka)i32jhg, +lcrge of -Q is placed at the u) lc uyth,ij+k 2ga9le-3 bl)lpper-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 i.zb q7b r2/vzis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 n.brb/ qzvz72i C charge?

  Q1 = 6.0 nC is at (0.30 m, 0t+vnhjjog)3/z k/ 3a a); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at) ja/j3z+nv3 a/ohgtk (0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plaesie; 5;tde u,g 9r4ogz7o* qhced at the vertices of an equilateral triangle which measures 30 cm on a side. What is tu9z7 *de 54iso;hq o;geer g,the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At wh:qiqd+ m96gg zat point, on a line between the two charges, would it be possible to place a cm6d qg:9qi+zg harge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0ogt3ly(5sel.:krv6 e -C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so tol:6 yev(gts5rke3.l he net force on it is zero?

  Charge +2q is placed at the origin and ): cnd3x4ujd hcharge -q is placed at x = 2a. Where can a third positive charge +q be placed hn 3)4dudc:jx so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total of jn c/n:xrnnpv427rc. $4.0 \times 10^{12} \; electrons$ 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 grav9vcudp3nys cnti:fpz u1)(vb3nl /.3 ity by the attraction of a fixed proton some distance above it. How far above the electrpd9nn/l 1c )3yvnfs p3 z:b(i3utcu.von is the proton?

  Two 0.20-g metal sphbh k8: yi v3i6z).(ajszi/mkyeres are hung from a common point by nonconducting threads which are(.kizz/3bj8as:kyi6 yih )mv 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 hay* 2mk*l nfr,ns a charge of +40e. What is the magnitude of the electric field at a d k*r,nyl2*nmf istance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at*c*j jn32lza gar9k whu6,/vp a distance of 1.50 m fromvac3kw,gaz n j*6/ l9pu r2*hj a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What 2qknu 7r n(7dbn ,bv + hs*q)4bd1lyvqis the magnitude of the electric field at the location of the test channy bk v n4b)s2b 1uqqrh7,(d lqd7*v+rge?

  A 5.0-C charge is 10 m fr0ft gz4 h8x1f ho)y*k,dgl5m fom a small test charge. What is the direction of the electri )fz08gflo4 yxmg *hkh,d5ft1c field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the6o3(b( ne lr b- .f(zgcfm4fbt force exper34bc( bgf zt.rf-nl(6ebom f(ienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 370xpxqp8it dfcu 4 o4..0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two fo.04d4p tuc 7iq8xp xcharges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC c2tj39;iixn rp ;, sreuharge is plaunrj3t; r9 ep s;2iix,ced at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meterk2b 8 b.b3j xdge5u1abcn8 n1g stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field x.ab2u 8n81 1jg3 b bge5bckdnzero?

  Two point charges of +3.0 mC and -pw 9eu54szc76, f sutc7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway u7pc4 9t us65zc,wfesbetween them?

  Three 3.0 mC charges are a x8h2ol ki .8r5cr5stft the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC rfi 8okt5hxc2 s.8lr5charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side,tah9j//0 8wslc llkn . 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 ecl/lw 9 anst lj8k/0,hlectric field at the square's center?

  A force of 10 N acts on a charge of 5. ;w sji/8lp)oo/ byxm:0 mC when it is placed in a uniform electric field. What is the magnitude of this electi / ;y:s) bojo8lmwpx/ric field?

  A particle with a charge of 4.0 mC has a mas) cp8yxd; oq/fs 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 N/ fet(b58i a/ka:zrzg4 C pointing downb zez: t4k8i(arga 5/fward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries +8+zbi1dej p ca charge of -2.00 nC. The ball is placed inside a uniform electric field, jzbp 8icd+ +e1and 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. Wh(hh7 m;fsc,4 rghz 40vkcqe;hat is the magnitude of the electric field 5.0 cm from the sphe4hh,70c;s g h(;hcr m4qfzvkere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 maabgg(6) e1 gh6 9rms.gg,cbbC. What is the electric field 6.0 cm from t,r1g . ga6 agc(mbbs)be96hgghe center of the sphere?