State the law of conservation of electric charge. 182fkg; av8rarv9gw) i me4( n)w ti26akvilb

  Is it possible for two negative charges to attrac28 f5drgdt: e zwj8j0dt each other?

  Is it possible for a positive and a negative charge to attract each ot 2+j;euky(v03w6 qi f 1h77(gbohzzqumri0 waher?

  A glass rod is rubbed with a piegyj/(t,og( noxmk9py0v2 f(z ce of silk. During the process the glass rod acquires a positive char(x (j mkg2v( zt9ygnyf,/p o0oge and the silk

  A proton carries a

  The model of the atom shoajubo(rcic;3 tw*jui- m 8 1e6ws a

  A neutral atom alwaymwk0fvb; 0sy oytv 0z/:8,inds has

  An atom has more electrons than protons. The atomf l(znk*.rhkg+q q80b is

  Materials in which the electrons are bound very tightly to the nucle ,cs/jvf.de ko/ solxd(5*ey,i are referred e.s*edody ( / 5vx,l kcjf/,soto as

  Materials in which the electrons are bound very l/*8k c:b:iyqii3-3ha cp*c zr i +lxohoosely to the nuclei and can move about freely within the material are referr-*c:rh*3b :y/hoxzi+klapqi8c c i3ied to as

  A negatively charged rod is bi 1tzms;ib,d0rought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod1s0z; ,m ibidt will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They ai+l3ryqtr xipvu*z)hcdv/ . gq -c99l)9 kw,lre placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which )-rcl k+*lh3w/ p9q)q y tcxri 9zdvu,gv9 il.statement is correct?

  How can a negatively charged rod cpaab4 8ch4l8+ v zvs:fharge an electroscope positively?

  An originally neutral electroscope is briefly touched f303i5 ue ssa2-. o/rddk8kh*dn q xylwith a positively charged glass rod. The electros sdo2.sx5n/kd ya03ld3* khq -efiur8cope

  An originally neutral el q.1 b/j2sm pta7) 5+yyr4 95eujc ;ajwrunmanectroscope is grounded briefly while a positively charged glass rod is held near it. After th7j uw+s4m2j ayta ubqmcy19)an.je5rnp ;5r/e glass rod is removed, the electroscope

  A positive object touches af1yt*jawhwsg0-ae ) h;; ox; a neutral electroscope, and the leaves separate. Then a negative objec-h 0;;a*jx yafs;)oteawg h w1t is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged- rxhr0o 3t0sx a,je6b 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 forward, but does not touch the negative object. At no time does either ball touch the negative object. What is the final charge o rshoe j-r6x0,0a3btxn each ball?

  Charge is

  What are the units of the 3,utn*+4k/5xtr srgvm-zk wg; wpkt 3Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects 9na w1(/39nryr kj ywhare separated by a distance d. The first charge is larger in magnitude than the second charyar nk31rjh 9/wnw 9(yge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near enfvb3;q8 3;yunv )h( jo,n mfdach other on an insulated table. Which statement best describes the electrostanovjb3;()q;y8 3 nm uhvdfn f,tic force between them?

  Two charged objects attract each other with a certain forcg j/12dy.oz uovdsn5exta 9/3 e. If the charges on both objects are doubled with no change in separation, the force between th axo 5 jvdyd //1.o3ngtse2u9zem

  Two charges are separat6b clu;ghl ;4vmfypf n4:2 +aded by a distance d and exert mutual attractive forces of F on each other. If the charges are separated h4f g;nf24 cyau6lm+:;ld pvbby a distance of d/3, what are the new mutual forces?

  Two charged objects attract eachil . ;1oarfr0i other with a force F. What happens to the force between them if one charge is doubled, the irrli f1oa; .0other 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 pro6eb*0tzjz qisy17 53bkvz- np ton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a sk es* zb zbzvi -653qj7yp0n1tecond electron is placed next to the first electron?

  An electron and a proton are separn ycw*5q;mj;fated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placenqfw;y;* cm5 jd next to the proton?

  An electron and a proton are separated rerq9krx(p q5 -9o)wj by a distance of 1.0 m. What happens to the size of the force on the proto9ke)9(qowqrr j- p 5rxn if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the zw.g(5-6upe 4wiy2rah0vm:x kuzz8 o 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 Nz 46-pu m.(2:8zh 5oixkyz0g wauewrv 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 q ,b o5afud8r:65j7 n*w b1zqp2x ybnmof 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 is the magnitude of the force that acts on the center charge due to a third charge of +Q placed at,wmdu:fj 2q8aoxnn b5 qy7b b *6zr15p one of the other vertices?

  Which of the following 6d9ke-uv/cx p is not a vector?

  At twice the distance from a point charge, the strength of theydakzb :61;1lcfa hn./r3w u( v.i2up qnen)p electric field

  Is it possible to have a zero electric fis:tuba01 a /lo:owqnjpdv,:: eld value between a negative and positive charge along the line joining th qlp1,:::naoda :0t/jbovw us e two charges?

  Is it possible to have a zero electric field value between two positive dslmm+0:z) wcsvqv.x(sd5c (i lv-: n charges along the line joinin(()-isw +.lsmz :mcxvcdq 50v:ldnsvg the two charges?

  Electric field lines near psitive poyl.sid2 o*xo8mpz( f8 int charges

  The electric field sho0hxmi/m 69,4 mcn iboawn

  Can electric field li -nuuo7sh 97se2apbsak38f)h nes intersect in free space?

  A solid block of metal in electrosta xzlc,dtw.x9g9lmb4yn raq+xf3)* 5i tic equilibrium is placed in a uniform electric field. Give a statement concernt5c 3*x,rlxifg 9l)wybzq4+ m9 . adxning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diaidf 36zwkvj4p +r:;pkmeters are each given the zpf63 +iwdj :vkr kp;4same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table .s :mp;kt0ivsbg47 xn in a region where a uniform electric field is directed straigh .pmg sbn;k4 svx:i0t7t upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric v suv:s.1a no:charge

  A positive point charge is enclosed bv: 4 4q5t1poc-pdz asin a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the elecda4tzs:bq-c4 5 pv1potric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriu6ao)t1z ek z-rm.

State Gauss's law.

  The charge carried by one 2js ylbhcvsn 1hr1 e0xo+0/5lelectron 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 cha4k8up;9;fuf +k z 3xjgma+fiv rge of +2.00 mC. How many more protons than electrons does this piece of plaafju3 fgi+9z ;mxpv4fk 8 ;ku+stic have?

  What is the charge ouu 26ybs u-umxt3 n;.sn 1 kg of protons?

  An atomic nucleus has a chargep 5zixie0x j4/ 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 atrhvdb p7t:* c,glg*kqcgo,08/.y bc nd -4.0 mC, respectively. What is the magnitude of the electric force betweehp/r7 . * gd: yc,,tgglvqc08bckbto* n them?

  A 1.0-C charge is 15 m from a second charge, and the force bev ib 3bk;8-jz y-lvs:ztween them is 1.0 N. What is the-3vy bvjzzkb:l- ;8s i magnitude of the second charge?

  Two 1.0-C charges have a force between them y*a tb lso(q76/9iml jof 1.0 N. How far apart are they?

  The force between a o* obba, /xx4ltis4 ser)7sd* $30 \; mC$ 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 fax,(xq)bxf 3/g 2u y xnna3u9rorce. If they are moved tox(r3x 2auyf3, nx)nabxu/ 9qg 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 the x-aki6q p 5r*78 ,akqacfk ukx5f+xis. 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 magniti8 k7kk rq,kf+xcpqf5uaa5 *6ude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A cainv +1+c 4l5hyscpv 5harge 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 maisya h45 l c+cp5vv+n1gnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 0mzh-mi4js h72i v j7w= 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 7hizsivw4jm-h7 20m jthe force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a seco2y(ceo b)bi6t1v 1at gnd point charge of -Q is placed at the upper-left corner. It is observed th(e )cttv1 2yo1gb6a ibat 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 is at (0, 0.10 m); Q3 =k2 e- ydg5/vri 5.0 nC is at (0, 0). What ie-i/5 gdky r2vs 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 at (0f svdke(wa by5;g5 f71, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the di k;v7 eb(w5 1fdafsg5yrection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an s,39oz4qi :+vsua48h,rgf kf zqixe0 equilateral triangle which measures 30 cm on a sideq:h ,k4qvo azsgru4sfx30ie i f9,z+8. 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 separ(az)*kiubfn jpzb dm ,,4k03wated by 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 elepbf()jz4,ib * mu,n3d zwk0kactrostatic 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 =u;:hy*y dd h1z 4.0 m. Where on the x-axis can a third charge:yhh d1;udyz* be placed so the net force on it is zero?

  Charge +2q is placed at the origin and v3t:gu)8ze 3 ng hdb,ycharge -q is placed at x = 2a. Where can338y:z)bvgned, hutg a third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g.v -k 2g3i+z6mfjxjq7v 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 gravb qm.;)m- ;eoypqh 0of: :vtulity by the attraction of a fixed proton some distance above it. Howqpq t-::;o0;emv ly h.fubo)m far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by non ,tk17waczy d(conducting threads which are 30 cm long. Both are given identical charges, and the electrostati ,c1 k7(wdtzayc 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 of +40e. What is the magnitude of the0hcum0 vl(a q1w(icx7 electric field at a distanca1l 70xmuw(h0c cq( ive of 1.0 m from the nucleus?

  What are the magnitude an:glp4 c)g l5je.up4hkd direction of the electric field at a distance of 1.50h pgp)4u4j k.ge:c l5l m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a d6)pd +kz8txe small test charge. What is the magnitude of the electric field at the location of the test ch 8x6d) +pktdzearge?

  A 5.0-C charge is 10 m from a small test charge.h863yvc;z; +mzomw+t bnd8 nz What is the direction of the electric field8mtnv;6++ y;3 zn hmzo8cwb zd?

  A 5.0-C charge is 10 m fc of/+x mgr5f vqloh*ou l7d(r),er0.yju 70nrom a small test charge. What is the magnitude of the force experienced by a 1.0 nC chargo, f7+r y7l/u *hf05 reu)rocm dnq.lg0ojvx(e placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separatesx 1he7tj nj-rvz :ylmom93 e(m/z i(7d by a distance of 4.0 m. t zex7:hyjn m7s 1mo9el mri(z(jv3/- What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm m ,rv)oi f5kv7ctx 0najthnc(66o 4au -ark of a meter stick and a -4.0 mC charge is pl aau6onr6( vxfh4o-jnc 75itv t0,k c)aced 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 c3*9rslrdyh)ycj5us./*j s*fqle -c .wmmr9om mark of a meter 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 electricm5cso.cr/f-l rws*uym93r y dj9les.qj )* * h field zero?

  Two point charges of +3.0 mC and il dtii:9lh):p*z w+1nhg2 v u-7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fzv 2nlh:ilw +u1 :)di i*gpht9ield at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m.04wtwn -,itbbo-ov 0/ krv s7kzs1hk5 The last csoob0 -r v 7swwzki14ntt k,k-hb/05v orner is occupied 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. Charges are placed a,7)yd6k rqf+k(pdznk t the corners of the square as follows: +4.r ydfnzkk qk+(dp7 )6,0 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 square's center?

  A force of 10 N acts oc9at/)hb i2lmn a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this 9al tmib)2c/h electric field?

  A particle with a charge of 4.0 mC has a mass u g7 kf)atn: e6*v7naxof $5.0 \times 10^{-3} \; kg$. 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 j18 4a zau/up)+gxnsbdo8-mf electric field of 6000 N/C pointing d8pgaumfj dx/+ zs 81b- ao)4unownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2uipu z e1.- qqst.f()(ssp o9p.00 nC. The ball is placed insi )upo 1(tqi(- zssfq.e. up9psde a uniform 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 +2.0 mC. What is / so7:l/ciy-goce pd2 the magnitude of the electric field 5.0 cm frs2occyi-//7p e:dlg oom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is t) 27hpk41o) xy eqcojdhe electric field 6.0 cm)2hdxcky4ooe p)qj7 1 from the center of the sphere?