State the law of conservationc-j x 094avxji of electric charge.

  Is it possible for two negative charges to attract .w0g:-l/sd(uojtmui hb 3gtbv5 : 9sp each other?

  Is it possible for a positive and a negative charge to attract eac24.t0g+isnb hlh*h ynnac d-:h other?

  A glass rod is rubbed with a sj0 typ29n+ kzpiece of silk. During the process the glass rod acquires a positive chjyk pt2+ nzs90arge and the silk

  A proton carries a

  The model of the atom shom9dx3wnw 1c.zws a

  A neutral atom always hass( qk dwct5(s :t*msr5qt834;knsegi

  An atom has more electrons than protons. -au cfuw) - 8ddki*8ypm/4uni The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refoj xnmzsxavc3n.5/on9dkl.5:: i t; werred to o i :sa;twmv 9k5nx 5n3:zn. .l/odxjcas

  Materials in which the electrons are bound very loosely to the nuclei and can bnm3xk t603hck z-1vw 9cdd7 vmove about freely within the material a9c 3tdkkb -xzv0chw31mv n 7d6re referred to as

  A negatively charged rod is brought near one end of an .z 1ap*y9+t lhgzf: 6po0qjbe5/ qtkduncharged metal bar. The end of the metal bar farthest fr*t d + .:lztfpqpa5/k6g1hzoy0bqj e 9om the charged rod will be charged

  Sphere A carries a net positive charge, and spherg0(/x0-(mu tahtk mnteytd/,v;c 2wme B is neutral. They are placed near each other on an insulatek d2,wy c ;eh 0(u0atntx-v/m(/tgmmt d table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively chargefp)d-t7ysr* hl:/ajo d rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched5quyr+3 :*rqumta3t y: a.pop with a positively charged glass rod. Theuau 3 5 q.:pt:qp+y*motryar 3 electroscope

  An originally neutral electroscope is grouc y. g20dc*erunded briefly while a positively charged 2rcgued*0y c.glass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electrosci:waug2xz;x:b7g )k c ope, and the leaves separate. Then a negative object is brought near x:2i:wg)x u7kgca ;z bthe electroscope, but does not touch it. What happens to the leaves?

  A large negatively cf d:oy3v mwy65harged 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 yy65fo3mv :dwobject. 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 Co a.xshka lk2sdlra8*: fb6 -mn1fuh;3ulomb constant $k$, which appears in Coulomb's law?

  Two charged objects atp/dgew . +drx 8db3v6re separated by a distance d. The first charge is larger in magnitude than the second chargr.g8bvp xd/w3+6d tede.

  Sphere A carries a net charge and spo1 kgsusj1r43here B is neutral. They are placed near each other on an insulated table. Which statement bes3ko1 1ugr4 sjst describes the electrostatic force between them?

  Two charged objects attr h-7 7r+ bzwi2/xwz ijyw9m)lr)- yllract each other with a certain force. If the charges on both objects -2i jhiyrbw/wwy mr+7z 7l -lr z)lx)9are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert69wfodt* ra) a mutual attractive forces of F on each other. If the charges are separated by a distancdor6 t 9)w*afae of d/3, what are the new mutual forces?

  Two charged objects attract each other-m056pwjnf 4wmigzl yurf*/ 4 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 centers is reduced to one-fourth its originaiw 4- 45pmnmwu*g 0 6yflfr/jzl value? The force is now equal to

  An electron and a proton are separated by a distafgw e4c+n*jy,nce of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to thejwc +4e*g,nyf first electron?

  An electron and a proton are separated by a distance of 1.0 m. Who aw/x-9iy1pwat happens to the magnitude of t -a/wpy9i xw1ohe force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Wha3)dogaxdjbk9; 4u: p4p9euur t happens to the size of tb ep3 kp4: dxju)u;o9a4ud9grhe force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the cent +yi dh28it0g1: xds.9ieuai j dso3n3er 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 placedi3+:hi2sxid i 9381ged u ny 0dojast. 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; cf z9a;uy1jn at the centroid of an equilateral triangle. When a second chacn1jfaz9uy;; rge 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 one of the other vertices?

  Which of the following is notds q7ri)kmus:a7 w,m1 a vector?

  At twice the distance from a point charge, the strength ofre -ua59q/l st,avtn5 the electric field

  Is it possible to have a zero electric fiel k ulbsh+/,b8j2t:t4 cq-lp drd value between a negative and positive charge along the line joining the two c+kqp2c/u,4ld 8 -s: brtltbjhharges?

  Is it possible to have a zero electric field value between two positive80au *sql w oye1oh*7f charges along the line joining thf*quooah 1s*w70y 8e le two charges?

  Electric field lines near psitive point charg-c0fb gjdi2e: es

  The electric field snpg; )ba-t a6 a1fmc2fhown

  Can electric field l7jwee9 40gxd vmt0g s2nm.- jiines intersect in free space?

  A solid block of metal in electrostatic eqkldfj bw :j/y*m l1ql i0-2b5auilibrium is placed in a uniform electric field. Give a statement concerning the:fjym*i 1/qb5d bwj 0l2klal- electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are uy;oi jp1t tx1.clc+ qx(u./beach given the same charlxxq1. o pt1. ub;jtcy/c+iu( ge, 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 wher *isqb,kc3z6j e a uniform electric field is di bkz3 s*q,ijc6rected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostaticy gduoony42zsj( oko*bdj(y42 wume9 f+0 +1v equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that imt y h1n63qvyinw.j9-da/ .kts grounded. As compared to the case withot hia 96j3/nwmy-qkvy 1d. n.tut the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in stati 2 ugugff l1dwak48,snrm d+9*c equilibrium.

State Gauss's law.

  The charge carried by onq8(f wisc/92k x x(yjxe 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 pro 3;yyc:4an m/ :lpczdotons than electrons does this p:m ylnz4c:p3;/yca doiece of plastic have?

  What is the charge on 1 kg of protono*9 i8o( k /s2(hi3czks 9bbmy-yqpjl s?

  An atomic nucleus has a charge of qufw9334zuwv $+40e$. 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 charg 2ihj skzsco.b75cog5 d/c/:ce values of 2.0 and -4.0 mC, respectizh2.iok 7/sgs ojb c5 /cc5:cdvely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forppgc,xm4;b8 ba- pt4o ce between them is 1.0 N. What is the mx g-4 ,btcb4 pm8opa;pagnitude of the second charge?

  Two 1.0-C charges have a force between them of 1ykqj u /::/ ,epyv6dd;jp2fbh.0 N. How far apart are they?

  The force between a + :r9gu2uz(b twht aiw*8vr1 r$30 \; mC$ 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.ptvqv6.a w:,o1-if0bv2*w tpd2c+) j qpkmnq0-N force. If they are moved to )qpftwv.1qcbpw p6 o-vd: 0iv qkt*22nj+ m,aa new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are pl0;d1s pr* )(pog4r5bgu iiiga aced 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 )gprou sipb;gg* a50 id(14irmark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are ,rs9 e4cru 9vzplaced on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to thc,vs 4urz99 ree 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 origin?

  Three point charges are located at the following positions3cfc paew/ bw9orjru;,vkfs. 0 co7)6: 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 magnitude of the force on the 3.00-mC cs/,o709cuk6ercbj 3 of. afw;p)w rv charge?

  A point charge of +Qszk9 5u jvr c1(m3m:tw is placed at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed t(t:m s13m9 uczjrvkw5hat 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 (0.30qp 9b1i(ir:8qy ; jmfc m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (01q(cmyrqjf b p 8i9i;:, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 z:mlwy( i;tg51 io.k y= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dl : ky.1 z;(goiwi5mtyirection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placeg+ 9* hd4 3ipulgc7yzxd at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forcxyg9pz7 +uh4g*c il d3e which acts on any one of the charges?

  Consider point charges of +Q and +4sent,+tl7o (j Q, which are separated 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 tht,( n je7slot+at 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. Wheu gqs:ks4ke*heq1q) rff,i *7 re on the x-axis can a third charge be placed so the net force on it is zerqei*h r kkgf:*174sfequq ,)so?

  Charge +2q is placed at the origin and charge -q is placed at x = 2j l5u(rqp0hotgnv i/os: :,a8a. Where can a third pos tivrp0:,ou5qoj: sh (gna/ l8itive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.mk3hj;uuvlx0 s u 42c20 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 gravity by the attraction of j(h)7lezou.oyppazk i-3w9 *: b-f uwa fixedu*pulho pzf-b. ewi7yz9) 3 wkj:(a-o proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonuy*3i h)dpo/yxfkx/c2/ s2 peconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the2 2) */p o xieu3ycpdk/x/yhsf angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a ch+u8lat5-tsa/h1 ss gaarge of +40e. What is the magnitude of the electric field at a dist5as8h ut ags-t1as/l+ance of 1.0 m from the nucleus?

  What are the magnitude and direction of the ei .haq/5v2nn slectric field at a distance of 1.50 m from a 50.0-nC nsh. na/5ivq2 charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudeycic jme 1e7e(+ef16f of the electric field at the location of the testf mj16e17 +yf(eeceic charge?

  A 5.0-C charge is 10 m from a small test charge.x*x 2cy bw. fyrbb,t:. What is the direction of the electric field:cbf.wxyb,y.* r2 txb?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitlbka c4zx,fu- a-jrshw 1;9q *ude of the force experienced by a 1.0 nCzh -;4sljf* aaq-x r1b,wk9c u charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance lj6rav1i/mml0p) 0pi2k (f mm of 4.0 m. What is the electric field at a point midway betwe/lpvm)p1rmf0 j a(il m0im62ken the two charges?

  A 5.0-mC charge is placed at thn:pg6: 4y m( zjc4d;vixfa-ahe 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 t :hg j ynv:md-6p ;4aczx4fi(ahe 30 cm mark?

  A 5.0-mC charge is placed 9p ob )loz4q9.j;oq3skyo; k4k4ob w dat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm 43okkl o)w;9p49yjdqoboqoz.s4; k bmark. 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 +t:h sfgr,(yrplaced at x = 0 and x = 0.20 m. What is the magnitude of the electric frg s+:t(,rh yfield at the point midway between them?

  Three 3.0 mC charges are at the three corners of l(lii:6 t1zoo axy*r4 a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of thy(1i4ol* oa:tx 6ir zle square.

  Consider a square which is 1.0 m on a side. Chargeptb )5;:f yvfsm0y1 ghs 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 tf yb);sp1v h :m5f0gtyhe electric field at the square's center?

  A force of 10 N acts:1x u7 a( yoxxiy1owj73v bdl8 on a charge of 5.0 mC when it is placed in a uniform electric field. What is the m x l3by7djw17xxo uoa( 1i:8yvagnitude of this electric field?

  A particle with a charge of 4.0 f(n o8)j/xp,z q4rofomC 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 placed in an electric field of 6000 pm19of3ax pj5 N/C pointing downward. What charge must be placed95ajo xpfmp 31 on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge:tg)p;zc6 kg7cwen /j5m6zbb of -2.00 nC. The ball is placed inside a uniform electric field, and is suspende z/)kggec :n5j ;6wb6mt7 zcpbd against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10qo; 5 29alrfeap r4bphh:1g 7f cm carries a charge of +2.0 mC. What is the magnitude of the electric field:7fqalp fh5 g;b192haoerp r4 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 thehnc)zlu+ia0moes pgw, 1*d 12 electric field 6.0 cm from thw*+1legim 2 z1u)phsn do,0 ace center of the sphere?