State the law of conservation of eles57tggc-pj,e y1 7-d enfld2rctric charge.

  Is it possible for two negative charges to fe 6j- 1m eu85c;hjbgc*-vy deattract each other?

  Is it possible for a positive and a negative charge to attract e,8mx 8; a*ahbnd*n apa0jt;boach other?

  A glass rod is rubbed with 28j i .im;lbgzst,1sza piece of silk. During the process the glass rod acquirii,; jzsbs8 tzm.1lg2 es a positive charge and the silk

  A proton carries a

  The model of the atom shogh( g+sacs2 w*:f5m8bdgs 5 djws a

  A neutral atom always hah803x hfyh 49mbrxg5j s

  An atom has more electrons ;651ub*yh*2mhqsccbcrjyp 9z 0*q j ythan protons. The atom is

  Materials in which the electron3y0pyaj1xe zl8mfl+4 s are bound very tightly to the nuclei are referred az +y8l 4p1jmfe 0yx3lto as

  Materials in which the electrons are bound very loosely to the nuclei anddgn t4(h.ia+gxc ob*o .5r cdhyg*a.ka 9(3rd can moh**kb cad c.gaa.i4 od grrnx.yt9hg(do53(+ve about freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharga:sdlji- yuy9f8w.8iwe a.t :n+ 8zv med metal bar. The end of the metal bar farthest from the charw:8i+y8avys wmjnd l-.f ut:ia 8e9z. ged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neu5 1rmry5 )gsy ;n-7jw piw(zmulzj3snf 3 j)-xtral. They are placed near each other on an insulated ta;3 jzjgmwjss)7n )(mir3-puy1wfn 5ry- 5zlxble. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively?p7717ap4l;dh1 rwmsib xl r.) 0wyuha

  An originally neutral electroscope is briefl/wqp. b nxrw5xd5l g9.y touched with a positively charged glnqpd lxw95..r gwx5/bass rod. The electroscope

  An originally neutral electrosco - rlkvg6m gsm40rm/9ipe is grounded briefly while a positively charged glass rod is held near it. A4lgmr6 m rigkv-/m9 0sfter the glass rod is removed, the electroscope

  A positive object touches a neutral electro.xf:j n ko7dg(scope, and the leaves separate. Then a negative object is brought near the electroscope, f( j7x. dngko:but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on 94u3*wjxdn fr5s. dmyan 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 on y3dn4jw9.r fm*u xd5 seach ball?

  Charge is

  What are the units of t zi q)1m6*ekbwbzkwn +t 1kt- w(j05xfhe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger )sz* j a:jmhh;yu5q*s in magnitq*h:u*js a)m yhz5 ;jsude than the second charge.

  Sphere A carries a net charge and sphere 1i8c kpll9c (th tdk *.-az7(hgmhpj9B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic k aldgtctchzh9-mh i1*j8 9lpp7.(k (force between them?

  Two charged objects attract each shr2 yp7+2 muiother with a certain force. If the charges on both objects are do7ism2pu 2+ hyrubled with no change in separation, the force between them

  Two charges are separated by a distance d and exmmkwe pj4p 0k8 l1kdn*gf7z:( ert mutual attractive forces of F on each other. If the charges are separated by a distanc4*e k71p(0kj mfdgnkzpml 8:we of d/3, what are the new mutual forces?

  Two charged objects attan599:z7icp0 +caqj sr iu h1iract each other 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 on9ijp u9 5r17zqc s0+na:chiiae-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happek tz irb)z*v:ct 8;y17cmisp3 8h:wvjns to the magnitude of the force on the proton if a second electron is placed next to the first electron78ti1mv j)c:8i:vwk3hyrz t;z*psb c?

  An electron and a proton are separated by a distance of 1.0 m. What hay8js*du8 j xp*ppens to the magnitude of the force on the first electron if a second electron is placed next to tdx*jj8p y*su 8he proton?

  An electron and a proton are separaj pp- 3 5bpscdv4vc)t+.plji0ted by a distance of 1.0 m. What happens to the size of the force on the pri03v-cp + dl ).stvcjjppp54boton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. ngm/l xa obyd5 s7akkx2b qt4,: /b0/wWhen 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 othag 0a7tbs2/ 4 xdbyb mq5n/k:ox wk/,ler 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 isugw09zzi qd(e;c s vxs1 aqgr-ie)0 59 placed at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices,v-xi9sw(;zz qrs9)0a0gece qd 1gi 5u 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 vector?rbb p/8 lcvx;-

  At twice the distance from a point charge, the strength of thc(bvj, kui9k +e electric field

  Is it possible to have a zero electric field vamgmp+gg c6exy1/-* t6u.koou lue between a negative and positive charge along the li6 umkm c yox/t 1*gpe+6ogu-g.ne joining the two charges?

  Is it possible to have a zero n .2v*jmecbi 4electric field value between two positive charges 2 v.e4cnj*imb along the line joining the two charges?

  Electric field lines near pqh x )wg6n:3pssitive point charges

  The electric field sh2dj9jon/mp1ic f fbtm8 27gp9 own

  Can electric field lines intersect in free spacu b y xyc1s);kgoff.12e?

  A solid block of metaruekjsc02 ne +m+l q:.rq7z;k l in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block'q kecsuq+:e 7;zr 0kjn.lrm+2s interior.

  If a solid metal sphere and a hollow metal sphere of equal 6m kx e9zpqa6ia,i)4x fyw8a3diameters are each given t6ix 4a6yima3)f x9 kp8 ,wqzaehe same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum resw9qt wj j6d+h0ts on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning thwhjq0t6jw9 d+ e charge on the block's top surface?

  If a conductor is in electrostatic equilibrium n q63ttq,nfk1 near an electric charge

  A positive point charge )bvchd szms;mg8imk0.2ed *s euowzp5,q,0 ; is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above th*;m;5h vsd,iob0es .kmp z)0w8c,umed 2qsgz e hollow sphere has

State three properties of conductors in s.lwa+-xkxrh +z v9eq9 tatic equilibrium.

State Gauss's law.

  The charge carried by one elecg9: a3/fmwllhtron 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 pal rdskm1 (iq ;dz-06than electrons does this piece of plastic havk61dli(m r0qsp-dz a ;e?

  What is the charge on 1a totw0ax9k12x)a z7x6s( nrp kg of protons?

  An atomic nucleus has a charge of h+i (cq mfalh96xz4f*xi( pq2 $+40e$. 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 -4.0guh3ylh; 33pzfg c1oht9y;- vv:/rne mC, respectively. What is the magnitude o;yo hv f 3rc ;/ pngle-y9hgv1:zt3u3hf the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between the.qbi0+c2 y6y egv4gwjvw7y *fm is 1.0 N. What is the+qc0 g4y. e7 wfwg6y2j*yivbv magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Hoq5p z+18b n/d yfrixs1w far apart are they?

  The force between a u;o w) r32nbdk$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apartalv5795j *6aaffb vin , experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between the5bv *fila7an 6jv5f9am?

  Three identical point charges of 2.0 mC areyb y,mb*38,si6fqhba 5wuzu, 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 maw *,bf5qhu,bu s,8ymbiayz63 rk. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges ar( l3. rdgagc*u8m; jsoe placed on the x-axis. 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 magnitud jgdoc;a(smgl .8u 3r*e and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are locn5o0aacag y( 4ated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 macn5gya ao0( 4C 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 s5cfud bn :ycp9e on mas(*q,30quare, 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 on b(s,qn9cf yacmu0 pd:5 *e3charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0;zh w3y-oim uv3v( h8x nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force whhyvx mo; (z 8ui-33von the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0,.ecb(luz8ze vf/ew20 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of thl w ce2bvez0z(/.8fuee net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placefyyt1 *r;7vi 7 nl.alc rt7gpy.ir2x5d at the vertices of an equilateral tryytx f 2 ivra7rt*lpcr7 i7;5yng.l.1iangle which measures 30 cm on a side. 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 separaid kz .;x;5siuted by 3.0 m. At what point, on a line between the two charges, would it be possible to place a d;z ;ksxi.ui 5charge 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. Where o d3)yduvkll 41ku grcr qiu762+h)z5 dn the x-axis can a third charge ygdv 76c i+lqh2r) )kkr53ldd14uuz ube placed so the net force on it is zero?

  Charge +2q is placed at tp+dusuytz5 pd6x501n9jq. w qhe origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so thas5t9j +q50qzud6 dnppw u xy1.t the force on it is zero?

  A copper penny has a mqdqig- 4tc nuu14t 6 idut/f(.ass 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 gravity by the nn bsji/dr73f5 h9i7xattraction of a fixed proton some distance above it. How far above the ele9xs7jf5 b/n i idn37rhctron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads pbu-/c/4 -qxq mo n:eawhich are 30 cm long.n-x 4pb:/e u-oacqq/m 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 magnitude of the elecznox/6b )8;r nlvdn +itric field at a distance of 1.0 m from the )oxznb;il/6 rn+dv8 n nucleus?

  What are the magnitude and direction of the electric field tfzohtaqa9,4, 99- ngy z7lg2yyu6pk at a distance of 1.50 7 fq al4g na2tz ko69zu,9y9tg-yy h,pm from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tes3q le*9hglc;trb. p- nt charge. What is the magnitude of the el; t3c 9q lhg-r.lpbe*nectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direcxgm7/ ha4l;9eu fvaonch0 2i ,tion of the electric fiexmvf9 /lh70ciohen 4u ;,2agald?

  A 5.0-C charge is 10 m j2zkl :z8 - 6z*:wqexp+cdo qufrom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the locatioo cq+ ekz:qp *dlux-:2z 6wz8jn of the test charge?

  Two point charges each have a value of 3.0 C and are sep-29w z(iu-jy ib5jpaaarated by a distance of 4.0 m. What is the electric fiel2w5ijz9ajby u p--(ia d at a point midway between the two charges?

  A 5.0-mC charge is placed w sh83d l*)dhyat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elecy83h l* hsd)dwtric 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 chaz5dmot5h e),rn p.h /zrge is placed at the 50 cm mark. At what point on a line joining the /5 5e ndmthh) ,proz.ztwo charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are dvh,fo yl -/4mma5mn9placed at x = 0 and x = 0.20 m. What is the magnif-/ h 9,avoym mmd45lntude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners ixgl4*5 foitj)a9g+ ap)g 0a pof a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Fi0gf i*5g)+)apoti gjap9 lx a4nd the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charg.zn rb3qg324 ot0.e1n bvcjases are placed at the corners of the square as follows: +4.0 mC at (0, 0);e 1c tzsr0g vbn.nojq3b4a .32 +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 when it is placed in a ukj jc,o fi ilj87,t4y c-/m0tpniform electric field. What is the magnitude of thisjtt,li07 if8,k/ jmy occ4p-j electric field?

  A particle with a charge of 4.0 mC has a mass ofzp k/vf( ju.7b $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is placed t* rje;l51lh bin an electric field of 6000 N/C pointing downward. What charge must be placed on thee1l;t r*h l5bj ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of 41/ kgk3i5s3zn 1jxm5 a ikolk-2.00 nC. The ball is placed inside a uniform electric field, an4ikm35kkoiaj5 glxskz n13/ 1d 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. gtf(dy:1 he9 5* 1bum t+ m(izu2yxc:vl+cis y What is the magnitude of the electric field 5.0 cm from the sphere's surf 9i(t :fx2uy iz dyg1mse+:l(*v+ccyb 1hmu 5tace?

  A metal sphere of radius 2.0 cm carries a charge of 3.p8qy ql 5 s-,kw*6eyb-v,haxh 0 mC. What is the electric fiea6k-8 be*-qqyhw v,ly5 x s,hpld 6.0 cm from the center of the sphere?