State the law of conservation y.,deb43 orfq of electric charge.

  Is it possible for two negat s m*a2bv*jzk1xk5/iu 3.ns plive charges to attract each other?

  Is it possible for a positive and a nega1uir43ij7cbd d:jp o5tive charge to attract each other?

  A glass rod is rubbed with a piece of silknuy/xae .4wxd v6( oa3. During the process the glass rod acquires aewa /4( x ya.uxnvdo63 positive charge and the silk

  A proton carries a

  The model of the atom showstro7p cu--ra/8sj zkk)(*+v qvuyb )a a

  A neutral atom always has qt 9dv;+t i 8r*;-vjsfqzspe)

  An atom has more electrons than protonng bv gtz6-810,nrjlps. The atom is

  Materials in which the electrons a) x4jsk/p.le o/lny/p re bound very tightly to the nuclei are referred s/jyp .xlon p)lk/4e/ to as

  Materials in which the electrons are bound very loosely to the nuuwrefde x .g*bfkf /u2t*3;/mclei and can move u2*/3dk;rf/ebu.*g m ffxtwe about freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. :+-laq wt1mtf - 0ybfaThe end of the metal +t: f1 lbtqw-f-ama0ybar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. T wcaq:1bh0 jw gu0l(,ghey are placed near each other l(u,hjbc wq1 w0ag: g0on 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 electq vchd+ha s b1;-p6j.proscope positively?

  An originally neutral electroscope is brd3 flvosh,f/mn22b *q nr 4sq9iefly touched with a positively charged glass n2*rfvf3q2h4, dm/n9sbsloq rod. The electroscope

  An originally neutral electroscope is grou 4z k./rzdt1mixa6d-ynded briefly while a positively charged glass rod is held near it. After the glasrt4 az.dzik -xm 6d1/ys rod is removed, the electroscope

  A positive object touches a neutr(1ohd5tjm j/ 9n .v aeyymrru4kz30jkgm *.y.al electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to mjy0.9zj35k dy(kt.m m 1 *hrjr o.n4vye/uagthe leaves?

  A large negatively charged objes2 +i6qjy k xztz4+:pe.aamb,ct is placed on an insulated table. A neutral metallic ball rolls straight toward the p4.+6xb2z, mz: qsatk ay+eij 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 each ball?

  Charge is

  What are the units of thwut s+un -pv:(waa1d7e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargicn- qz9cf.v4e * l7(l+ -lhhk -qdwmte is larger in magnitude than the s7nvmed -- lf-zk t4hiqc+ hwq(*c.l9lecond charge.

  Sphere A carries a net charge and sphere B is mm 8i u9p8 (zfx5wwvh7neutral. They are placed near each other on an insulated table. Which statement best describes the uf pxzhww78im v(895melectrostatic force between them?

  Two charged objects attract each other with a certainvh0g. *fvhsusnu/. e+ force. If the charges on both objects are doubled with no change in separation, the force u efg/ sv*n+0u.hv.hsbetween them

  Two charges are separated by a distance d and exert mutual attractive f+gyj8:m jg-b :(jyldlorces of F on each other. If the charges yl y:dg jm-gjlj: (8b+are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a forcnjhi +rug b.*r *2m)fril(:j ge F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their chjrru (. bgnr)lgf:*mii2j*+enters is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are septk y panvy*0xn v*05j8arated by a distance of 1.0 m. What happens to the magnitude of the force on th aknnxy5 j8t*v vp*y00e proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0g861 bor v5cvrc6kks9d:*xtv m. What happens to the magnitude of the force on the first electron 61cdbvtkv 9 g5c 6x:kr*s 8ovrif a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 s;dl y iye*h,a/df,9u m. What happens to the size of the force on the proton if the electron is moved 0.50 m ce,dl i/s;9yu*f, hadyloser to the proton?

  A point charge of +Q is6i2yd k50nr wu placed at the center of a square. When a second point charge of -Q is placed at one of the square's uk 0w2 6diryn5corners, 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 pla jgaso6a i0u4 t041flyced at the centroid of 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 place6o l044t 0 f1gyajsuiad at one of the other vertices?

  Which of the following is not a vdw3*uhb*;u; zts q5trector?

  At twice the distance from a point+,qkvgj 27qay charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negamkrj sg h5)4*htive and positive charge along the line joining hjgh r4)*kms5 the two charges?

  Is it possible to have a zero electric fiel bu+e l o d,7q1oth12e3)yrvnvd value between two positive charges n ,2) oree1v7yu dv+hotl13bq along the line joining the two charges?

  Electric field lines near psitive poip :xcvvm8) 3sfnt charges

  The electric field sow )q2 e rf58o su66psua3znx6hown

  Can electric field lines intersect in u9hbqi w*rxc54 * bgomfz4z.(free space?

  A solid block of metal in electrostatic equilibrium is placed i 5y zb,q3siz6 ;dve5sjwoc 5(on a uniform electric field. Give a statement concerning the eleczqsdw,yo5o je6z3v5s; bi5c (tric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of eod)uuw746)vpiya hr2 qual diameters are each given the same charge, the electric field (E) midway between the center and the surface i4 6)rw )yod7hpv 2aiuus

  A cubic block of aluminum rests on a wooden table in a region where a uniform el)sg +-v2)j iq nhe.xgjectric field is direin+).j -2gxq)ge sj hvcted straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric ca-+ ok1bpre;charge

  A positive point charge is enclosed in a hol pd:/ic/;w8x w vdj9psi97d pxlow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow spheresjpp9dww:p 89/;iddvi /c7x x has

State three properties of conductors in static equsfgd7c )m *yi d:6-u .xyxlsb;ilibrium.

State Gauss's law.

  The charge carried by one mm i;mx1.xyh(0c ohc 9.2lvzbp7y;h nelectron 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. How many more proqm x9 lb3ah2ykx byp:l1)pc34a) 2vtq tons than electrons does this piece))ypm bqql3 39t1xbk v24chxap2a : yl of plastic have?

  What is the charge on 1 kg o*ls:*h i fi9/g:q,uvx(goohz hk(: ilf protons?

  An atomic nucleus hap 8 24men6fx nblcloy2ag00sf. hvh4- s a 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 -4w-ul,lfkz5/v;pe v e12 uac, ,ud8siq .0 mC, respectively. What is the magnitude of the ele2cv efaeuk/sl vqldu8 5zp1 ,,u; w-,ictric force between them?

  A 1.0-C charge is 15 m from a so60bkat*m x5k onc lpdp/ n)50econd charge, and the force between them is 1.0 N. What is the magnitude of the sp* a5bxmpnt0/65 )ok l0k ondcecond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How fpr duo0:3ica,ar apart are they?

  The force between a s ;at s(2zwxpwk547qf, e1alpr/. scb$30 \; mC$ 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. me: sif1*plqym76 sr9If they are moved to a new separation of 8.0 cm, what is the electric force between thim:q6y9 fl*s r7ep 1smem?

  Three identical point 5:hxk wy(4vmp charges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at xkm4p(w hyvx: 5 = 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 xyku,, ex 7feu0e) +.arsrj/ bof +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 se,.ue/ae)rurk j+7 bf0x yx,the charge at the origin?

  Three point charges are located at the following 2tp86 kk7o o.mz gq nt0j//rxqpositions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 7qkmtrgon.8 q pt/x6z0jk /2o= -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a sjywcglkv :((( econd point charge of -Q is pla(y (v cwlkjg(:ced 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 =- jlea q/zkp osw6:d9/ -1.0 nC is 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 nC chargop: kzs6 ead/-l/qwj9e?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.sxp7 3x xi6x4c zx+ra.0 nC is at 7ip +63xxz r4x.sxcax (0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateraloch w.c0b43g v triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one ofhv43o wg0 .bcc the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whatjy8 j7dzg 3/85j,dpdk )xvtom point, on a line between thdtpk 8jz,j5jy dd/m8)g ov 3x7e two charges, would it be possible 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 charge is at x = 4.0 m. Wqxij4xs2:b )a q2 6u+1tirziuhere on the x-axis can a third chax+it 21)j 6su4ar :qiu2q zxbirge be placed so the net force on it is zero?

  Charge +2q is placed at the origin andulmp p2 u0fy y,/n7fcg)w)a 4o charge -q is placed at x = 2a. Where can a thiy0a)pfu 247wn,l / go)uymfcprd positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass av*9z .d.xt+ zvbb4un jl n,rpzl3*i(of 3.0 g. 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 g itnv*d,+.h :rll ghqis .ob9+ravity by the attraction of a fixed proton some distance abovei+qilh. o:9,vnl*t+ b dsh.rg it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from ale.mqz r)) cjpf i5n.fry,7v o .pdb4/ common point by nonconducting threads which are 30 cm long. Both are given identical charge/ f.eqr5bv).zj lr,y7 icpf4. pnmod)s, 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 has a charge of +40e. r ho(qb8(q20 bpvv;bvn evu,0tusz u*1fa+3wWhat is the magnitude of the electric field at a distance of 1.0 m from thv(snqr2 o;uv0e10(+ut b wh3 fbpzbvvq,*8 uae nucleus?

  What are the magnitude and direction of the electric fi70 vevrny 3ml-eld at a distance of 1.50 my-e vmn3r 0vl7 from a 50.0-nC charge?

  A 5.0-C charge is 10 m frggjj dfw 9:tm 2t6.7.l luqvi m/;fad*om a small test charge. What is the magnitude of the electric fj/9iwut;jl.6gl tgvd 7f m.*m:2qdfaield at the location of the test charge?

  A 5.0-C charge is 10 m from+5j 2dvb,r 2i b o-aya-ksm(jqko 9ho7 a small test charge. What is the direction of the electric 9r bbiyaskq vo-kj-j+27m a5d, 2o(ohfield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnu60m/tcg/ 8k 4vbqqve h(2l( sa 7yhufitude of the force experienced by a 1.0 nC charge placed at the location oclah7u8s vk/qtv ( 2b/ egq6m(hfu4y 0f the test charge?

  Two point charges each have a value o1iad/ap mjybz;k+c 9 4f 3.0 C and are separated by a distance of 4.0 m. What is the electric fiez j +bcd4 9imaa/kp;y1ld at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0d+u1o4qyby - cmrvq, 9 cm mark of a meter stick and a -4.0 mC charge is obqu+dyv,mr - yq19c4placed 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 c.xij)6zvy 3z;gz 0 zhh7wonh 3m 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 elecg6z7;n z 3 ozxv zwh)3ji0yhh.tric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.23q9jr:tn;rd1y . duy t0 m. What is the magnitude of thy 9t1j.ydd u3qrnr;t:e electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.5eyx.fac4mn3h t 5:8mr9kpi f30 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at f43ha c:ip.n 8rky e3tfm9m5xthe center of the square.

  Consider a square which is 1.e:e icj 6rkq3 g6jq:j 5ek2/yj0 m on a side. 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 jje6ieyk:g5rjcq3 /2qje : 6 kthe electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in w t4,oh8z ibp.a uniform electric field. What is the magnitude of this electric fielw8o4it.hp b,z d?

  A particle with a chargrg hie95d 4.(hmxj lr7a;7 tkp(yi+hz e 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 ,gf4 )lwj dif 0b tz3j;x88emlplaced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspeljt8e;jf0l ziw bgm3,8f4)dxnded?

  A foam ball of mass 0.150 g carries a;yj.8kg6(fqog pcy z/ ;v w0yl charge of -2.00 nC. The ball is placed inside gpz(w;8.f 6y0/l qgojvc ;kyy 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 ofk4rvpj p;36va +2.0 mC. What is the magnitude of tk;av 4rp6v3p jhe electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC,ai7 icq;n (to. What is the electric field 6.0 cm from the c(,niqc; tao7ienter of the sphere?