State the law of conserva(l/ n+7:rj3w5(nav0dtttn:l2 hii it8 uwcfqtion of electric charge.

  Is it possible for two negative charges to attract eakvp1as1- if reow7 t vomo 41my+lql/g3)5b3pch other?

  Is it possible for a positive and a negative charge to attract each otheaqsa9 w 0tm4pve37 pw5r?

  A glass rod is rubbed with a phkq+c0 c r46rriece of silk. During the process the glass rod acquires a positive charge and the 0 q r6r4kcchr+silk

  A proton carries a

  The model of the atom shows a7mz4.d:*t5d q1 kndms6idqs u

  A neutral atom always h2o3hv) mlk:e v cj2v:yas

  An atom has more electrm:oaj( pmy *(nons than protons. The atom is

  Materials in which the electronsxsn)10-uhsi;kcoz)n/ ura - 9y grz3a are bound very tightly to the nuclei are referredcg)z;h-nkausr09ia o nurxs)-3/ 1y z to as

  Materials in which the electrons are bound very loosely to the nuclc7p.l8n iain0ei and can move about freelyl7n8n.ic p0ai within the material are referred to as

  A negatively charged rod is brought near one end of an unch0yqpx , 8z1k4pojk2xxarged metal bar. The end of the metayxk j,041z2q op8kx xpl bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are pla 9uzw/ ot1+wbxsiow8 37etn7 7qq5j ymced near each other on an insulated table. Sphere B is briefly touched wiijwmq73us5x987y+ tq/1 oze o7wnbtwth a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posig rhn v+qz*u wqrc : (0e3/bgw-ycb)/mtively?

  An originally neutral electroscopzv0o/b3r3 itfe is briefly touched with a positively charged glass rod. The electrosc vrft/zb3oi0 3ope

  An originally neutral electroscope is grounded briefly while a pocu 9 q6st2nafsj )73.o huin5tsitively charged glass rod is held near it. After the glass rod is removed, the elesnat uq6 7 sjuo).cn2h9 ift35ctroscope

  A positive object touches a4e 7odnese1cz65u w0l neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope6cndw 7 50z1e osue4le, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral mkc 4;qqzjyu;t-s 2bu; etallic ball 4su-zu k;q;2q ;jcytb 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 on each ball?

  Charge is

  What are the units of the Coulomb con vi-;j/.as. 7gxf kdi, lgpn4ystant $k$, which appears in Coulomb's law?

  Two charged objects are sep:4bbgemkc tjtc hho0 xndv z216b 9m8/lg2t0(arated by a distance d. The first charge is larger in magnitude than th02 8ngkjx(hm46mtc/v:2e1ch0zl obbtdg9t be second charge.

  Sphere A carries a nkai9*0qk: wc8vut y:b2v *fw het charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betwev:kvawq9 b*2kt:*h yciw8uf0en them?

  Two charged objects s* -8oe+i75glvywuf gattract each other with a certain force. If the charges on both objects are dou78+g* s-gleioufv5w ybled with no change in separation, the force between them

  Two charges are separateucdph* ssj.: 4d by a distance d and exert mutual attractive forces of F on each other. j*scp4d:hus. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each *:p,bnus vm.j *ts*awother with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their c.b ss *j**wtpa, vm:nuenters is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance 5 tav pdok-64r;5sr(,4n :aasmnmc9juy 3dc gof 1.0 m. What happens to the magnitude of the force on the proty5n4,rc;a:dn 5- a4(kp3astcg6j d usm or9vmon if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 15 yo4t3 q 1h2.ravs8 ztg*ndessyq/4rhw8a8g.0 m. What happens to the magnitude of the force on the first electron if a second elnh43*rdts1osga8.hy2 g 4/e a 8zw r5qv8qystectron is placed next to the proton?

  An electron and a proton +7,yrrij(p6/ ks gpw p;p i7ssare separated 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 m closer to the pr jpi( ppykrs/w+,sspgr7i; 76oton?

  A point charge of +Q is placed at the center of a square. When a second point otilguq. * i7)charge of -Q is placed at one of the square's corners, it is observed that an electtguq o.ii*l7) rostatic 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 of an equilatera(tik xxxj- 9*bc7j kj-l triangle. When a second charge of +Q is ix9 jxc -ktxj(7-bj*kplaced 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 ve-w j.nj1hp2q uctor?

  At twice the distance from a poin,u 5 ,xs(+ s.rqqee9ca mgf(d+t8f vfit charge, the strength of the electric field

  Is it possible to have a ze 8z2c1t)gize,lrl1 (cs2yzua , n;b bgro electric field value between a negative and positive charge along the line joinin2c l,z(b n,12cisg1ulbezatrg) ;z8 yg the two charges?

  Is it possible to have a ze1r g7co 5/szadbo 1z*oro electric field value between two positive charges along the line joining the twos/o1dz 7z cor*b5ag1o charges?

  Electric field lines near psitive point ch* 0waptj (.m/vcfvmfwj6a/ * varges

  The electric field showdhbhx,8ki(n - n

  Can electric field lines intersect in fredx6947z ar:jmwsa+nhy)ilk7 e space?

  A solid block of metal in electrostatic equilibrium is pla1, pe7ku0zfl0ej nzz9ced in a uniform electric field. Give9 pu j,1n7lk0zezefz 0 a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of z3w( f jg9l/es 0utsc:equal diameters are each gic/(s zujfs09tlw:g3 even the same charge, the 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 a uniform el9y4jx/r(vmni2 dhr3xa ar s(:ectric field is directed straight upward. What jhn4/y(x:a9ix sdr(23v rmracan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nej0,pap*p bq(u4jf q 7far an electric charge

  A positive point charge is enclosed in a ho tid x7/xp:c)cllow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the ho:ix/dcct)p x7llow sphere has

State three properties of conductors in static equilibriu) s-)zgq1nbtv m.

State Gauss's law.

  The charge carried by 0 moz +,iwf6so nl22mzone electron 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 protons th bz,d b9aw6xx s5o(p:exa *((9eepkxfan electrons does this piece of pla(((x aaoe 6pp9xe, 5 exxzdsb:*kfbw9stic have?

  What is the charge on pq,c,-t7dt uoj l esea.u(+y 51 kg of protons?

  An atomic nucleus has a charge ofyxhm6mt; * ox4 $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separ qk5j;ab:.ak1wo1 8ap ngqd:f ated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electrib8:1 1a;aow:5p kqqjfna g kd.c force between them?

  A 1.0-C charge is 15 m frommimk9g1 kt;(a a second charge, and the force between them is 1.0 N. What istmik (k9amg ;1 the magnitude of the second charge?

  Two 1.0-C charges have a force between th osq;7nw2e rp1em of 1.0 N. How far apart are they?

  The force between a :6zaw6 2jd1qc k/nznf$30 \; mC$ 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. m n eak+q.c dsr6);n8yIf they are moved to a new separation of 8.0 cm, what is the eqa) d en r;6+y.nkms8clectric force between them?

  Three identical point charges of 2.0 mC are py: ,pv ws+(k/ zmikk2amc 74lilaced on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, c2zk 7y msm:+ki w/i4 (vkalp,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.8mt: xd) mhb5n A charge 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 magnitude and direction of the electr)xb 8nm5hmd :tostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 e2el :+lj*p1x;koa glmC at x = 1.00 m; Q2 = 3.00 mC a*lolepa g;e12 :lk j+xt x = 0; Q3 = -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;k yjjd42*if5 nsm6gy 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 charge of *i46yn s;d25gj mjyfk-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 = 5.nizafuq u xh(/69 i,d)w n9*zq0 nC is at (0, 0). What is the magnitud6zai)u, qnif(w hz99/q*ud xn e 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 ata*:nqv jk( mf2 (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directiam* kvq :f2(jnon of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral tubx+lqkk82ybwl528-fhan0 g riangle which measures 30 cm on a side. What is the magnbk ywab8 x-8lu5n2h+f0g l2kqitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated ;q-fs8vvpai h 4j1k7pby 3.0 m. At what point, on a line between the two charges, would it b7qf avvjph4; 18ki-pse possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is alw7vpynskd no 3*o46 (dfo3 n+t the origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axisd7(pw*3kyn v+63 4nndlsooof can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the rm+v0o.mjas )origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zeroojarv )sm0m. +?

  A copper penny has a mass of 3.0 g. 3o28flhrn(hw 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 bb,lv)yc zea1 o01i.b against the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the .0 y,ai 1zblc)v1bobe proton?

  Two 0.20-g metal spheres are hung from a comjmuv 07z1)xwq 40sahh xs 9b*gmon point by nonconducting threads which are 30 cm long.b4has7m xg)hq 9u0 x1s0*wvjz 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 has a charge of +40e. What is the ma 4p9i/dqjt (meyh5j+(gci2s fp;gtr9 gnitude of the electric field at a distance of 1.0 m from the nuclptyrj(tm9d i+ j 4/(5p cgi9se fgq;2heus?

  What are the magnitude and direction of the electric field at a di76g2 ,ypryq1 ltfz6)afa xz ;nstance of 1.50 m from a 50.0-nC cxay7;1 g6faz nq )t6rzf2l,py harge?

  A 5.0-C charge is 10 m from a small test charge. What is: j ya8dv+z8guv(um8b the magnitude of the electric field at the location of t: v8ug 8m+ dyuz8va(bjhe test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directionbpb2;8g7 u, 5f+ktimeswe kz( of the elepgm 7k +5fe2(esik zw8b;bt, uctric field?

  A 5.0-C charge is 10 m fr: c13fjtdch8 2gfzzuggb7 :q .om a small test charge. What is the magnitude of the force experienced by a 1.0 nC chd1b:jz:tfg cz7 hqc 2g38g.ufarge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separaxl g rm28d+/jtted by a distance of 4.0 mj8 /+lgm2rdxt . What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of ypkz bg ((kr1y 8af2t6a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elec 2bakzty(y( k6f18p rgtric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC b+ce:c rxs5 g.charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric fieldcc.g+ sx :re5b zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0 w.fz 76(x xmd4kqoytx.f -d.t.20 m. What is the magnitude of the electric field ak-dw6d.ztxym 4.(fx7 f .qox tt the point midway between them?

  Three 3.0 mC charges are at the three corners of a squajswdabd(y.o9/ (k: q hre of side 0.50 m. The last corner wkj b(d:o.h qy/dsa9(is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which x jazc*bowa (d:*kfck: n *6/pis 1.0 m on a side. Charges are placed at the corners of the square a:ko: *x ab(n/c*dzjc6kfwa* ps 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 square's center?

  A force of 10 N acts on a charge of 5.0 mC -(1wuw6yv.er ogcde*uf4o c7 when it is placed in a uniform electro6uoeccyw* 1r-uf 7(de.w g v4ic field. What is the magnitude of this electric field?

  A particle with a charge of 4.kh .:qx7;tyw )t h4)(ev xenrv0 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 mm3e)55hno.a p.jhs mt0h m8v gass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be susp5 j. )anmm0h3h.ghs5 8tveopmended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ba * ydr445qg;gcxivx )tll is placed inside a uniform electric field, and is suspended against the force of gravity. Whciyq4 54vx)grt*gd ;xat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a chargw1k,+yz raql-z qk(c *e of +2.0 mC. What is the magnitude -lzqrw(a1kkz, c*+qy of the 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. What is the el rwhed( zk3/yv)uni)4ectric field 6.0 cm from the centerd3v keinr)z )/wh4y u( of the sphere?