State the law of conse-+585 o wydk7mltxgg hv55px ervation of electric charge.

  Is it possible for two negative charges to attract each ot p/w k,bpyopip3618 rbu;qx7uher?

  Is it possible for a positive and a negative charge to attract each oxl1v( 5ht2npwhn u8 i0ther?

  A glass rod is rubbed with a piece of silk. During the process th3pp8wtr-hhd)4e,d sz e glass rod acquires a positive charge and ,d erph z sp8-dw3h4t)the silk

  A proton carries a

  The model of the atom show ap, qk)ye2u.gs a

  A neutral atom alwayvr21i(;l:og nbr/l yis has

  An atom has more electrons than protons. The 45q3y,0q 8bgql xwewtatom is

  Materials in which the electrons are bound v 6)vo3vpd4 2oi-ra eqiery tightly to the nuclei are referre-v6)o4dro2ep 3iva qi d to as

  Materials in which the electrons are bound very loose+/f70w iinty xly to the nuclei and can move about freely withi+t wyx ii0/7fnn the material are referred to as

  A negatively charged rod is brought near one end of an uncharg1ao5eem nl6q5ed metal bar. The end of the metal bar farthest faqm5 e5lneo 16rom the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutrasx)vyky: c42 ej ks(l9l. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire thj9 cskl24ys)x :v(ek yat is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positi +/; kqehaxlbh7h. mpal0pf4 /vely?

  An originally neutral electroscope is briefly touched with a positively chargednso y5 f miaa9x)+qk0, glass rod. The electro0qkyfs a+ 9maon )i5x,scope

  An originally neutral electroscope i+wbd/u6 zf*e-2 pbdb ls grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, theb 6 zde+l-p/d2bf *uwb electroscope

  A positive object touches a neutral l8m *vyz ;sm7celectroscope, and the leaves separate. Then ;z8mc ls 7vm*ya negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is p c(2jqmletvs(/w8 h-slaced 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 tjvm(/ 2w(ss-elch8qt ouch 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 cowmh cunvs le8.33)h.a(3lxwfe lbd4*nstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is la)wamz /bg1j dbl48a g2rger in magnitude than the second charge.jg4 aab81m/dlb w2) gz

  Sphere A carries a net charge and sphere B is neutral. They arf jnpc5n ;sde8 -*w nox5,x btfp4*tt;e placed near each other on an insulated table. Which statement bef4jw;xttn *5 ;- xt85bdpes *f ,nonpcst describes the electrostatic force between them?

  Two charged objects attract e vliuw)/9y leg6ei- cp+ug-(ms- b*g zach other with a certain force. If the charges on both objects are doubled with no change -- e-gus*iepcg/+iv6(ylb u)g9l w zmin separation, the force between them

  Two charges are separated by a distance d and exert mutuaxw72pnyt)yau7(;pr yhq/2 cxl attractive forces of F on each 2cpax;qyw7 (un 2xp7y/)yhrt other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to . t3mu0zjnuptl);t py o0pb-. the force between them if one charge is doubl; 0tpu ty.mlp3obp.-n0 zut )jed, 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 separated by a distance of h;- xluenbywtg3;)0b1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed3) t0yelwbbhgx- ;;un next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happensha:f i;-w.gnog7gx2 f to the magnitudeg-i.g;hf7na:o 2gxw f of the force on the first electron if a second electron is placed next to the proton?

  An electron and a protow 55bsns,d 5bab gl:e;n are 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 meg, 55 bb ;lnasdsbw5: closer to the proton?

  A point charge of +Q is placed at the center of a sq it9w 7aa0uc.auare. 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 charge7cwa0.uiat a9s 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 triangl bn9qttqw ho103t, unz*5r-p ye. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 uq n9q3tt 5wy1pbon*,0-hr tzN 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 vecnouw9mpxcd mr/),p(* tor?

  At twice the distance from a point charge, the strength of the e-/z+jivb+hx jlectric field

  Is it possible to have a ze.x)h)ad9 3 e;iwtphjyro electric field value between a negative and positive p9.y)dh3;w hi x)eaj tcharge along the line joining the two charges?

  Is it possible to have a zer1 6gp8trffr 5j+g/nv/qrj6a qjj; ,xro electric field value between two positive charges along the/qjrg686gp/f n;r v ,ja fr1tj5jqrx+ line joining the two charges?

  Electric field lines near psitive point 70lzgjw c x49xcharges

  The electric field shozvf.mxr+fhlfpsz y s;l7o69c;+ nm; (wn

  Can electric field lines intersect in free space h8,ynhn/x1dp ?

  A solid block of metal in electrostatic equilibrium is placed in0/uql ztb3q .g1e,cc ,fp2a hy*h5fqg a uniform electric field. Give a statement concerning the eq y/,3lhacz1c,p2 u5fgqte.0 hgb q*f lectric field in the block's interior.

  If a solid metal sphere and a hollow k 45 4wh,axs-locfmi i+a.sw4 metal sphere of equal diameters are each given the same charge, the electric field (E) mci45. sosik ,xwh+a44 lafwm-idway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform el1a-kmh:vqny le 5ys7i/ f6lw3ectric field is dkl7n6avy3wil /-ym : 1sq 5fehirected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrosihsz8it;5 0j y(qb- n9 zk7ljdtatic equilibrium near an electric charge

  A positive point charge is 2 w7b nveda:.acx,xj ;enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric xab.and7jx2;:ecw v , field at a point directly above the hollow sphere has

State three properties ogt x.72 amx:rcf conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is,tif mkm) 85uj;nnq 0t $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net char/n0 g,kqatv2h wi1fvwj ,l3ba0 93jcwge of +2.00 mC. How many more protons than electrons does this piece of ph,3vcnbi90wgfva 1tq0/,l aj 3w jk2w lastic have?

  What is the charge on 1 kg of prhx)1wd3 f d5mxotons?

  An atomic nucleus has a charge ofl /9sqkv+:rue * rqm1k $+40e$. 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 --ss*j6tj l3m r;yp jwcg(w 3 kbn:3t5s4.0 mC, respec jnw*jymp ;g-3 j c5wt6:(ssls 3rk3tbtively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweenfa;l / mod2hy ) ta)(i ;.lc0sm,gu0dx xqjq5f them is 1.0 N. What is the magnitude of the secon(;ajf d5q)lml md;.oy a cfx/x huq0t0g,i)s2 d charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far a)8;d5 j *2mor+kmvk8j/y)cadxwh 8+yo ueirmpart are they?

  The force between a gi+z;o-qi)qcn . mveyj;ir80 $30 \; mC$ 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. lfd,; kxu icz*95+d0m5grs hyIf they are moved to a new separation of 8.0 cm, what is the elect; fm * +ir5dyludz09c h5kgsx,ric force between them?

  Three identical point charges of 2.0 mC are placed on the x-p yfj:j6b:fmz s kic.x:5pl*+axis. The first charge is at the origin, the second to the right at x = 50 cm, and the thi 6mx:fp *k +.j:lyzpcib:j5s frd 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 of +9s. xe/ fe-vash0oh 5x2.0 mC is placed at the origin, -2.0 m C to the right at x5 9e/shs-fex.oh 0vx a = 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 fm;gm m7 h7vff iv/20:ya,jwliollowing 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 mm i;flgv 0v iw7,f 7hajy2:m/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 *gvxyqd/u/. wa 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 -Q is placey* ./qx /wgduvd at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0 dm ey 25a4.6ihqt-sjy); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of a562mh i -q.4etyjydsthe net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0l 6vl5ty9y xa8.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thet89 alx6yy 5vl 5.0 nC charge?

  Three identical charges of 3.0 mC are placed ato ecna4j7h u--v;zd- zn6l0k m the vertices of an equilateral triangle which measures 30 cm on a side. What is theajo-h-; vcl-74me z0nuznd6k magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are l e*r7m i-eb:dseparated by 3.0 m. At what point, on a line between the two charges, would it be possible to place e:7e*r-ldb mia charge 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 ko ly5/y jzwabbg zkpbk43 356h7ylr)zxq--5m. Where on the x-axis can a third chagy/yk )3-bwl7yzbhq zj3kx56l5z k-r ob a5p 4rge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x ,epr j/rf 4qv825uxegq e /6comm:.ch= 2a. Where can axeempcm:c2/gh6. fr/5ej48vu qo qr, third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 gzvyi)5kgz 2;e gka4 caoud ;zl/t0+m77w)zd y. 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 attsx2od jc13ni: raction of a fixed proton some distance above it. How far above the electron is the proto1jc sod i3x2n:n?

  Two 0.20-g metal spheres are hung from a common point by nozb;wkvp b:q:1nconducting threads which are 30 cm long. Both are given identz;:1b: qpbvkw ical 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 the58itd, aucenf 8q/) :sx9h4 sa9uepel electric field at a distance of 1.0 m frsn /u9:xa5sf eph e,ld4ui8ce9a q)t8om the nucleus?

  What are the magnitude and dire0t8 g2dvvc) f0+wnql mction of the electric field at a distance of 1.50 m from a 50.+qgn0lf vcw8) mvt0d2 0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magngg6t;r w+g r1/ twb7rhitude of the electr gg;r+6rtgh1r wtb w7/ic field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. Whath146g 2uypsvd is the direction of the electric fiel4vdh2 61 sypugd?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudlb 3otm 0 r, iplt/f3dg;kb9g.e of the force experienced by a 1.0 nC charge placm.kfgp ,/3otbdl0r 3b9ilgt;ed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dista6 o(1dx5o fichnce of 4.0 m. Wha16if5(dhc o oxt 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 a meter stickrg55u1a w xvwv 2f-k6dbc +1qtu: ob:1qyz,nv and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 c1g6 r1 qvv,f12 k+awd::z n-ou 5 ubyqtbx5vwcm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meters.qll:d0xv en61nm hmneam9)(y ( 2ti stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zerod(269 nl qne(l tsnymx )mm:1vea0hi.?

  Two point charges of 5 8wwjg huq7tln-pb76 +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between tnj87w56 lwp h-tqu 7gbhem?

  Three 3.0 mC charges are at the three corners of a p7md pnaw67+e -2sbmusquare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at +b up6w p7dn2smm7ea- the center of the square.

  Consider a square which is 1.0 m on a sideo3/lw+y4q. vd sur9 xf. 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 mC at (0, 1). What is the magnitude of the electric fielow fsv. qx/dr4lu+3y9d at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uni2ng3d jb3n y ;0erazt/form electra ;3drg0j/3zne2 ntb yic field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hao xxeec7 /0fp+a ql23vs 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 n hg7y9ie k8y1 (mavr,mass 0.120 g is placed in an electric field of 6000 N/C pointing do r (igah 7ymve8k19y,nwnward. What charge must 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. The ball is pij2 sgzi- k:1nlaced inside a uniform electric field, and is suj si2 1gi:nz-kspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carrb+j kq8cfe/d::c0i,8.lwa.*mx : vwlvm dtivies a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm kl:dtw*vbcm qd iv :,vmfe8i+w:/8a.cl0. jxfrom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.04z// ;8p lwyk3riwzkr1l 4eso mC. What is the electric fiele4syl/3/zz wkp il;1r w84r kod 6.0 cm from the center of the sphere?