State the law of conservation of electric c))i0j a n9ty4v7as7lllivy; s harge.

  Is it possible for two negative charges to attracll. 1a)h4yp;e prh of614 zcdet each other?

  Is it possible for a positive and a negative chargeif g3 g3uwyo3h)xde89 to attract each other?

  A glass rod is rubbed with a piece of silk. Duringh(2:han+e s,xf s pjn) the process the glass rod acquires a positive chargs+h aj2pf)h (sx,nn:ee and the silk

  A proton carries a

  The model of the atom+ 5tsvmqivrs/ ia5jsrb5/r m)i-oje +;+c1fc shows a

  A neutral atom alwayy.6 kd) fslb0bbbr v./s has

  An atom has more electrons than prot hz*ol u g,owayb1u17nyg*kmn /6r68f ons. The atom is

  Materials in which the electron /dlhlk)jlcye9h7f77rd aw 3(s are bound very tightly to the nuclei are referred to asfc7 h3ke(drlw/h79ajd 7 yl)l

  Materials in which the electn2j0a b26x :dvmxr hmge kcoo08nt52h6ml ;+nrons are bound very loosely to the nuclei and can move ab;5h xlvbd2m:26on+mh nkre n8mj0a06o t gx2c out freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal+e0hx+mp)8iy(b-tkj c 4 idlr bar. The end of the metal bar fa-xih) ct8em+jr+ky(p d0l i4b rthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is n0t;jev .azdf5e kp-: *mkqx9- pok/sneutral. They are placed near each other on an insulated table. Sphere B is briefly touched wit - so*vfk z e9d-pe:axjk0p5;n km.q/th a wire that is grounded. Which statement is correct?

  How can a negatively char oopb5fj0yza8 yeg0j :/r 7y,qged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a poos2;,o:fs9se 0r7kt 8mwr rcasitively charged g:t2; ko98oarsc rmss w 7er0,flass rod. The electroscope

  An originally neutral electroscope is groundedx.4 d n8tpljseu5 7u4e briefly while a positively charged glass rod t.84 p4 eluu7es d5jnxis held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electros6vfsf34fzl5;aallj (et w7(z cope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happez3fel(a tw5 s f;( l4vj6lf7azns to the leaves?

  A large negatively charged object is placedpl-pr5 (9w-:myr;zlk-czn p e 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 rrmz5(-pl ;k9:nz py elp-w-c 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 kz7i5f9:nbinthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects aj4 l0-kfv 5kig+bb z4b)6ef lfre separated by a distance d. The first charge is larger in magnitude than the second charge.40f-f +jlz6) 4l5b kfgb evibk

  Sphere A carries a net charge and sphere B is neutral. They c43v-hpr7ku 2eg) zt-r sni9h are placed near each other on an insulated table. surek7pr) 4-923 zit-cvhng hWhich statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certaip2zd6 n+a q8qq.k+c,h/csan dn force. If the charges on both objects are doubled with no change in separpdszdac ,+nqh8qqk. 2n +6ac/ation, the force between them

  Two charges are separated by a distance d and exert mutual attractive hb2:zhad ck6+ ewlpxqx7 ogj;b32 (v 8forces of F on b6 k:lezpa xc(djg h 2+28qh3w;7ox bveach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract pc v cr r5n -cnojj1+/1)w8clreach other with a force F. What happens to the forcejo w/l+j c11 cnrp5 -cr)cnv8r 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 original value? The force is now equal to

  An electron and a proton are s ,qf/n7bmuu-keparated by a distance of 1.0 m. What happens to the mag7u /n b-q,mfkunitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happp)(k4pxs+h mi ens to the magnitude of the force on the first ele(hpk4 pxi+) smctron if a second electron is placed next to the proton?

  An electron and a protkfp76gm v8coo.ol2n 0on are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the ele c7mv oo2p.lkgn0o 68fctron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second poine.qtp/ q yg.;ut 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 other three corners of the squa.eup t;/qy. gqre. 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 triange gl1wb 2jw4.exlk;z8 le. When a second charge of +Q is placed at one of the triangl4l1zl ej kgb8.; xe2wwe'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 vector?sjg1;(ctvu,m )4* .a(lcg frggfx7vi

  At twice the distance from a point charge, the stb (8 gsbrnkd63rength of the electric field

  Is it possible to have a zero electricp(t58j7k ppyc field value between a negative and positive charge along the line joiningp(yt 78 5jkppc the two charges?

  Is it possible to have a zero electric field val0orzs2y7 b3v. g cm (,rgmy1fhue between two positive charges along the line joining the two chargebco gfz07ymr r( ,yh s31.gv2ms?

  Electric field lines near psitive point c8t0s w+ bkbm,kharges

  The electric field sm ue .a gq(iny(6;3-sdswj:fr* snu8bhown

  Can electric field lines intersect in free s7m o,qq a*-9sj pbiyy4pace?

  A solid block of metal in electrostatic equilibrium is placed ib4knv mtn(+ x7n a uniform electric field. Give a statement concerniv+4nx 7 btnmk(ng the electric field in the block's interior.

  If a solid metal sphere and a hollro; u 8w 2fshxkolk r;x45-;xrow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the x54fo;2kro- ;8xxk;urwrhlscenter and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unif.w v69 dyyo2wcorm electric field is directed straight upward. What c9 cow2wy ydv6.an be said concerning the charge on the block's top surface?

  If a conductor is in electrostas6 4e3lh-w o)*hsuqgntic equilibrium near an electric charge

  A positive point charg sm8wcy1 j*exhkaz/2w7 a7+bbe is enclosed in a hollow metallic sphere that is grounded. As compared to thk1w mha/ je*a8y27 cbz7xbws+e case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of cond-nj (es 0)wvzeuctors in static equilibrium.

State Gauss's law.

  The charge carried by one electron o p-.c- pb2fhp;.2xvlr*zv vk 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 t(vv,9k s2*1z/b+cah zk d onfqhan electr(1d2zhf, /cs bzvvqa +k9 n*koons does this piece of plastic have?

  What is the charge on 1 kg of proxzszz 151mjx.tons?

  An atomic nucleus has a c-1,kv pr l8qscharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated ey5bakl akk044 w/m4bby 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force ama5/l4kk4wbey k04b between them?

  A 1.0-C charge is 15 m from a second charge, awqoeh y.ej ga* 9f84jz1ko.d. nd the force between them is 1.0 N g oh1d.e e84qa .*k9ojy.jwzf. What is the magnitude of the second charge?

  Two 1.0-C charges havemra7i a9o kkhc33/j 5z a force between them of 1.0 N. How far apart are they?

  The force between a iy 8uctp /hde;d4 j9v/$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experiz17w)7 tej (o wlmaxh(ence a 1.0-N force. If they are moved to a new seph )7oejt(mxa ( w1w7zlaration of 8.0 cm, what is the electric force between them?

  Three identical point cfz+d-y+c4gwx r;1jfwharges of 2.0 mC are 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 mark. What are the magnitude and direction of the electrostatic force whi4ycw dxz+w;1f+fgj-rch acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed zvu3nl3uj52 u d9m;h uat 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 whichvujm92dunz5 uu hl3; 3 acts on the charge at the origin?

  Three point charges are located at the following position 2wwv(u9s 6max;( qmnis: 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 magn n9iwwm vuqxa6 s(2(m;itude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center ywqt 4)k8cjtiu(0i6 pof 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 chii8y4w( k)qjucttp6 0 arge if a third charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 od n/n,hkqyr4+eg6p8nC 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 ch+ y/ n68q4prno gde,kharge?

  Q1 = 6.0 nC is at (0.30 m, e )inb7 kh8/rj0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directiinhe 8 k/)7rjbon of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are p/txx0 s()igd slaced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electsd(0 )isx/x gtrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are sep i /fy1x:0f0bkw++ntiuej d m6arated 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 that the electrostatic force a0 ftij++:y16ufi nxek 0b mdw/cting 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+ 2vj,q6bz/kjy9k;zx y fo /dd. Where on the x-axis can a third charge be placed so the net/9k kj;yy/dxdf62jqz b z+o,v force on it is zero?

  Charge +2q is placed at the origin and chas,p qbwu7 ::7byzvf2yrge -q is placed at x = 2a. Where can a third positive charge +q be placed so t7bfz7s,y2wp :q uv: ybhat the force on it is zero?

  A copper penny has a mass of 3.0 g. A u2+7v 1( kiyh;bf wn*gu31 tsy+nfngb 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 graviyh baigb2f/fc ,b4)x5 ty by the attraction of a fixed proton some distance above it. How far above the electron is bgb5xh4f/ ab)f,y c2ithe proton?

  Two 0.20-g metal spheres are hung from a commp2jt jew-.w y3on point by nonconducting threads which are 30 cm long. Both are given id- w py2jw3je.tentical 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 o2d v f;qm-zq zwwsx3f6 r+x.3kf +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nuzmv-w3wqf .6x ; k+qdszf3 r2xcleus?

  What are the magnitude and direction p+ow+fxx:) y:h lh3glof the electric field at a distance of 1.50 m fro :)wg+fxop 3yx:hh+l lm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tew0mejd gqu /,*8e blag w))(zrf l,m-qst charge. What is the magnitude of the electric field at the locatidgebrw j *ql0 ,f,a u- /gz)wlmm8(q)eon of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direll 4x: d*pe,dhction of the electric fiel, dlh:ep *4ldxd?

  A 5.0-C charge is 10 m t 3 .x jg85vb*qanvph*from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tesgv 5jpbtva n*8*xq3. ht charge?

  Two point charges each have a value of 3.0 C and are pb7hya: 5 pbd: fxw5myq(y)/ yseparated by a distance of 4.0 m. What is the electric fie(:b)d5p w7y/fyx 5p:q hybmya ld at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter 8p+xx 3fvkkvpnf lv; vg 3+:y-stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric8yl3vk :vngx;xf p+ -vf+vkp3 field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm m( cgg 8vk b/zcje -(6npvt(lx0ark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a li (z 0t6lkb8egjcg(nv(/vpc x-ne joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0yin hne6+ p8i85osa 4s.20 m. What is the n5i p8ey+ahns6oi48smagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at6z ;+ 6f.4a zgopg(n0c fjmflm the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the cenf(z f nm+cgg6;j0 al4pzmf6o. ter of the square.

  Consider a square which is 1.0 m on a si/gzz 5zzawba.h5 uq++de. 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 mz.zzazq5++ gw /u 5bahC 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 w*(t eziu ff1u6hen it is placed in a uniform electric field. Whautff e*1 u6zi(t is the magnitude of this electric field?

  A particle with a charge of 4t(djr cd8ntm6 yd;43f.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 placed in an electric field of 6000 N/C(bv jg ps1,)le pointing downward. What charge mustgs1v(b,eljp ) be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC.yae0hfuv7 q1* The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are tu1 ya7 qhv0e*fhe magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries - d6l8lk/p6tu9 schxaad93pxfoev7 :a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the skd 93-col 6vhxepft8x96d:aap/7sl uphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. xxkze 5u)t (t/6rwvg/ What is the electric field 6.0 cm from the center of ktr (u//6xgw t)ezxv5 the sphere?