State the law of conservation of eleel 67 bc7elptdw ,g,g-ctric charge.

  Is it possible for two negative charges to attractmp tz4 6mx+gfs1j6.qw each other?

  Is it possible for a positive and a negative charge to attract each5x n/rejp+t(yek4v rjrw,x +/9cfh,s other?

  A glass rod is rubbed with a piece of silk. During +k;tibfk: :qit,gx,jthe process the glass rod acquires a positqg,kktx ;:,:+fb ijitive charge and the silk

  A proton carries a

  The model of the atom shows ua: h-hvlegn3* 2m+ara

  A neutral atom always hlaic 9s n:7w)mo;f hk,as

  An atom has more electrons than protons.ebw a wt479 pddqu,2a: The atom is

  Materials in which the electrons are bound very tibph;6 k 1jazh5ghtly to the nuclei are referred pa 5b6jz;1hh kto as

  Materials in which the electrons are bound very wa 7t:w:ip+v5o6xr 5g;fkecq loosely to the nuclei and can move about freely within the mat+5o: : 7gfc;exri6qw a5vkwpterial are referred to as

  A negatively charged ro+j*gmv6qyn q8 d is brought near one end of an uncharged metal bar. The end of the metal bar farthest from 8 n*qqvjmy+6gthe charged rod will be charged

  Sphere A carries a net positive chargj 6p/gx0 )0ddduaeew8 e, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statemen/ga 6j edup00)dde8w xt is correct?

  How can a negatively charged rod charge an electroscope positivelyh, q;ac/5q jm4+xptwlq3c9z m?

  An originally neutral electroscope is briefly touchb j l/vd 1 ea+vq7*7,iakdgm9xed with a positively charged glass rod. ddgm7q+i,1lbvj v/ e9*kxa7 a The electroscope

  An originally neutra;xfr/ tem l0dru32* bml electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the t rxr/bfe 3;2*md ul0melectroscope

  A positive object touches wmhi+3)8-jwb bimzn3 a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Whatzi ih+ 8wnmwb3)-m3b j happens to the leaves?

  A large negatively charged object is placed on an insulated table. Anw j9hs3l86wtoa65nfk)a; pc , qjcr9 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.wl96p);cc5qhwrao a9n,s 3 jn6t j8kf 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 ofex)zs( l/w*yl the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distabg +9w 97olvbznce d. The first charge is larger in magnitude than the sec 9 lb+9zg7bowvond charge.

  Sphere A carries a net charge and sphere 3:y fzz.cp k (fs32pfzB is neutral. They are placed near each other on a2z.kc3 :p(ffzyzpfs 3n insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attrd2 vue3:laygsn12y (f act each other with a certain force. If the charges on both objects are doubled with no change in sep1fga3desy :2nul v (2yaration, the force between them

  Two charges are separated by a distanceyvbo vo* ck10;f*my.l d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are thevcmyo10vf l bok *.;*y new mutual forces?

  Two charged objects attract each other with a force F. What happens to tqvmv-;4:av a j -mk*j/v ej+mihe force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to o/m jak-*-; vievav:4vmj+ mjqne-fourth its original value? The force is now equal to

  An electron and a proton qwc .je(hpvaox -ox8..8ao5s are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a pv8saw.oxh -.ca8e(5 q x.ojosecond electron is placed next to the first electron?

  An electron and a proton are separated by a distance bv nnhiymm23o 073f e5+b :jmhof 1.0 m. What happens to 0+n523bbmmfo: j3y hin7eh vmthe magnitude of the 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.pmb:ge q1 )+ ytoyrtj2a+np+90 m. What happens to the size of the force on the proton if the electron is moved 0.50 mgt +9aybr) p+m2j np1oqte+ :y closer to the proton?

  A point charge of +Q is placed at the center of a squav r7ay2(+b()hayzi6 dc vijw)re. When a second point charge of -Q is placed at one of the square's corner ()d)aw2h y6v(j+iabiy7 v czrs, 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 placed at the centroid of an equilateral triangle.d8(s j i)p m1p88ffl dcurc7(x When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic ffpf1c(dm8r7l)dsu xi( 8p c8j orce 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 followin/x :qegtu a*+g ..nzlng is not a vector?

  At twice the distance fromhr wyu b2a4/v5do:67soea aj 5ao:et) a point charge, the strength of the electric field

  Is it possible to have a zero el3kys*83 hp xxna k.n/aectric field value between a negative and positi.psa8 *xkh k 3ay/nn3xve charge along the line joining the two charges?

  Is it possible to have a zero elq/czq5d2( w(yfrqyr .ectric field value between two positive charges along the line joi wzc2r(qr(/y5fd q.qyning the two charges?

  Electric field lines near psiti 45rzpl *+u7rnum s,p eahe0a9ve point charges

  The electric field sho, nuimj lsr),dvbl;)2wn

  Can electric field lines intersect in free spz:gse+rg3w e;9 ifki9,r2r hhace?

  A solid block of metal in electrostatic equilibrium is di(:penk* 3 ao/wuw+f placed in a uniform electric field. Give a statement concerning the elec+fp* eon3uwd:w/a ki(tric field in the block's interior.

  If a solid metal sphere and a hollow metal sp9.7x imdirswmr1vpe7uy0 h7/ here of equal diameters are each given the same charge, the electric field (E) midway between the center and the surface is .v m riywrm79d7i1p7usxhe0 /

  A cubic block of aluminum re:x h8 iszracw6n/3/rn sts on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the 6nir8sxh/wz/r ca:n3 block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chagiig j;3bzx5:(q5p5i5zv:zr b6l rv arge

  A positive point charge is enclosed in a hollow metallic sphsd)2 ,b tf1/ dk0rtutqere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the ho2dsftdbr 0tq 1k/ut,) llow sphere has

State three properties of conductors in )+ykbq *a0erustatic equilibrium.

State Gauss's law.

  The charge carried by one ele :stfpzns ;f14hy 5a: zne(v)u2 (nyvactron 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 protdcw/ fx)y7 0ud2fm f+lg o(yg9ons than elecmfxdyc+ l ffod/0yu72 g9)gw( trons does this piece of plastic have?

  What is the charge on 1 kg of protons2k9i*io1-en yis) o o;6aexst?

  An atomic nucleus has a ch8mb, fn pf6+poarge 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 -4.0 mC-v68y a3q tnii, respectively. What is the magnitude of the electric force between8it6-3 qnay iv them?

  A 1.0-C charge is 15 m from a sex8lmnw+qep y:5 ezu-i b;1 j-dcond charge, and the force between them is 1.0 N. What is the magnitude of the second charge?yxjep e1+ :n-5iw-8l; bzuqmd

  Two 1.0-C charges have a force betw+b4jf+f dmw86iu d-akeen them of 1.0 N. How far apart are they?

  The force between a s,qu75n p,;08lf2/ sluyhxbta b lq+nsk by,+$30 \; mC$ 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 forc - fhxd27jn3m78ppgp wyd )d4qe. If they are moved to a new separation of 8.0 cm, what is wf pj7)pn7gyhdq 8 -xdp32dm4the electric force between them?

  Three identical point charges ofk.4g e 0vi-zk uq6hm9ul2f.me 2.0 mC are placed on the x-axis. The first charge is at the origin, the seconm2v9ke m4l.uufh kgi -qz .0e6d to the right at x = 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 of5(dajl1 p5 ,gpoxunruq/2g w) +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 the charge at the o)/5ldog (5p1u ajr,guwxp 2qnrigin?

  Three point charges are located a -3wvo1 d8uejzt the following positions: 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 chao ew3jzud81v-rge?

  A point charge of +Q is placed at the center of a square, and a second poini3 p,hgkk r1 /ze,2ui;sv0 mdrt 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 forchvke1d2g 3pum0 i,zir;/sk,r e 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); - . un/krfd88 8kcsnjnQ2 = -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 cha j u8fr-kd88cn s/.knnrge?

  Q1 = 6.0 nC is at (0.30 m,h)lq8:xoe9uyf (fo7t u.u e+-e o,srp 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the diulxfue - .)(e7ohour8yeptfo+, 9qs:rection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plac.wj lo:,xx8c 8c1scag ed at the vertices of an equilateral triangle which measures 30 cm18:a,cj w8xg lccs .ox 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 separated by 3.0 n+ ,to jhkf4ub66yk;v)nij bmq mp6 3.m. At what point, o6)mh.bt 6j,3 6mny f; jqopik+bk vu4nn a line between the 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 gs/fp.2 i ,kiwfo(j 2ithe origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zeg if2ofij(,p/s.k iw2ro?

  Charge +2q is placed at the origin an8dbq)k. b4 6oh 6zm1b::n9jw q(jqb8ovllxnid charge -q is placed at x = 2a. Where can a third positive charge +q j:i 9qjd z6n b.q4kv6qmxo:l) bwl8o 1 (h8bbnbe placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total par v .xrarkg3b) (/tt9; l-moof $4.0 \times 10^{12} \; electrons$ 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 a8b (q0ggqslsm. jd01pgainst the force of gravity by the attraction of a fixed proton some distancel18.gqbs js(gmqp0d 0 above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductids7q-i f9+z5 4 5 zqoif6wgbprng threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the p 7ibd5rzsqw 9igozf4q6-5+ fangle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What 2biz5 x(;zh oul4;0kvywx h6qis the magnitude of the electric field at a distance o5uw;hh q2z;iv0zb46xo x (yklf 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distancer i6,p rdv,nno3tv,f/ of 1.50 m36rvt ,fv/i,nr odn, p from a 50.0-nC charge?

  A 5.0-C charge is 10 4ue:i2 flneccw6 6bf 1m from a small test charge. What is the magnitude of the electric field at the location of the test chargece1l:u feifbw2c6 64n?

  A 5.0-C charge is 10 m frhq5+, r fzyz;zom a small test charge. What is the direction of the ezq ; +rhz5y,fzlectric field?

  A 5.0-C charge is 10 m from a small test charge. What is 79 gd )m z4wt/kuknjo*the magnitude of the force experienced by a 1.0 nC charge placed at thu4z79kt/d*om)gn jk w e location of the test charge?

  Two point charges each have a valb xmd73kprdthg94 :fv( 6h-hlue of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point gr-9h:(l3v4fxkhb6p7dhdmt midway between the two charges?

  A 5.0-mC charge is placed at thez gm s74+s;w+oaqs zc;y(ehz ; 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 the 30 cm markz e4 zo(yqsw7hm+sa;;c+;s gz?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -41a0.a-+mhnx(dre3 ce s f znr,.0 mC charge is placeds-x,rezhan0( mean3f .d+cr 1 at the 50 cm mark. 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 placedm0 calz3ekr 0y4 dn 9pb0/clm, at x = 0 and x = 0.20 m. What is the magnitude of the electric field/mp9k 4z 0ac0lnc ery,lm 03bd at the point midway between them?

  Three 3.0 mC charges are at the threedy :kp1rh)u-t*xjwb1 corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thx1 dbh-ku jtyr1 )*w:pe electric field at the center of the square.

  Consider a square which is 1.0(27x2 ycrw-y9kenjz:cf* om g m on a side. Charges are placed at the corners of ynjekmo: 2zr-7*xcyw9f2 cg( 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 the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC whv.w zb5e(p, jmen it is placed in a uniform electric field. What is the magnitude of this electrzewv mj.(bp5, ic field?

  A particle with a charge of 4.0 mC has a mass ofzxg 7k;,w/egn98amzq ym p4s 7 $5.0 \times 10^{-3} \; kg$. 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 +yilt2dz,.t w* mvz1h N/C pointing downward. What charge must be placed on the ball forw*tld.ym zz1v+ih, 2t it to be suspended?

  A foam ball of mass 0.150 g carries a charger.+ya* etwhl 8iwh-2 g of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended aga-t8y*helh irw+a.g2 w inst 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. Wo) w p ys2ja:6/q2.*tsaw kw)xa 4hv6rdv/frnhat is the magnitude of the electric field 5.0 cm from the spher./wx*6/v t ofrjs6)pw ara4 y :w2)va s2qhkdne's surface?

  A metal sphere of radius5 5eu+qae5zgyxu;,q1h t9ft8vih swt s3*- ss 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.*;t+ feuui9y 8 h1szgva -5t, 5eqsst53hwsxq0 cm from the center of the sphere?