State the law of conservation of electric chargew l3j8r1jbgp0 .

  Is it possible for two negat sg yzbwir7vr 9v996rc*d 1bi3ive charges to attract each other?

  Is it possible for a positive and a negative charge to attract each othf6 jcb.0h.yzuzw2arbn;n;z- er?

  A glass rod is rubbed with a piece of r/* nha 1(n44ks;dv2hkdb8 bdtif/rdsilk. During the process the glass rod acquires a positive chsr 1k2vn d(tkbhh*an4f d/i/4d;8rbdarge and the silk

  A proton carries a

  The model of the atom shows k4q;r5qr,xal)3ti2 2eorxlo a

  A neutral atom always9t q9 l 8b-wlb;k w0.1i km3aipr,jcmr has

  An atom has more electrons than prouh* n;rt6 7so94( bdqpdbqjkmg5vj5 +tons. The atom is

  Materials in which the electrons are bound very tightly to0uy:) 7jdlsx8 kd j3o fm:lcz+ the nuclei are referred to as)kd7m+8l zl3jfjudsx o:y0:c

  Materials in which the elehrarh o-cyvlz*j0hrj 7m7k)/; n. do* ctrons are bound very loosely to the nuclei and can move about freely within the material are rjnh*c m*dr 7 rhvzrk0 l7h;/yoa.)-ojeferred to as

  A negatively charged rod is brought near one ec x3( 7a fupbsv yigkaa+674u;nd of an uncharged metal bar. The end of the meta6 uu+bakf7(7p4vaais yx cg;3l bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge,vl *bzp8dhh3t2:r(p k and sphere B is neutral. They are placed near each :pvd(lr h8h2* kb3z tpother on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an elec0zc,(x;vhoeve v0 +aqtroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargy -jaq7+ti8ge(*c dml ed glass rod. The electroscm tcd+il a78y*g e-j(qope

  An originally neutral electroscope is grounded briefly while taiyqodz c7h8-66) si wwt.o+ a positively charged glass rod is held near it. After the glass rod is removed, the elect sw +6qad iw6-iotyt7hc8z.o )roscope

  A positive object touches a neutral electroscope, andden6yel)bw4 5j,p3.ptl2v1 cde 2nl a the leaves separate. Then a negative object is brought near the electroscopeplwv) dlbjned. p1 c2e23 ln5a 4e6,yt, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an 5bdtt 5sl4xx2 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 negatb4 txsx 52tl5dive 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 constq x yas8ivm kby c0u;w(3*1u2hant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. 4n1j iz18349xfsnf eazf de i) The first charge is larger in magnitude txined389f fj na)ifz 11s4z4 ehan the second charge.

  Sphere A carries a net c75/5 i rch:i dpfp 1shxboh34nharge and sphere B is neutral. They are placed near each other on an insulated table. Which statement besi5h45h3rf1pb psodix7:c n h/ t describes the electrostatic force between them?

  Two charged objects attract each other with a certain forbvg -st5rw4lw,7mv( yce. If the charges on both objects are doubled with no change in separation, t-bs74wt5 (lrvvmgy ,whe force between them

  Two charges are separated by a distance d and exert mutual attrac9d i5c u/ozsf+ ve; r)duay*9ctive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual foreoid9*c95 ;)y uravf s cudz/+ces?

  Two charged objects attract each other with a fncwsdu,w6 f:g/lct j5.ff h*(orce F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation wd g ch/6ncffjt u: (f5w*s,l.distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separat zv.fck 7lrj9.ed by a distance of 1.0 m. What happens to the magnitude of the force on the protonkzj.f 9cr7l v. if a second electron is placed next to the first electron?

  An electron and a protonm0st5 x6(5e. wmlyzdt are separated by a distance of 1.0 m. What happens to the magnitude o5xtwzme0( 5s. mly6td f 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 ;ujmz.sg ynu92spctz w0.u)h h c18i4 1.0 m. What happens to the size of the force on z yc;mi 89s.2zpcuhujg4 . )nu1tw0 hsthe proton 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. When a second s7v;ui zyw4 (g5ul ngat1a5.( zcsf(h point charge of -Q is placed at one of the square's corners, it is observed that an electrostatic foy vu5f(n zgt lch (wz(a;45guas71si.rce 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 xj nky; dp 9,pp+lb6q-the centroid of an equilateral triangle. When a second charge 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 verti9 dlp6;+qyk-b,n xppjces?

  Which of the following is noma;+a6y+h tuvek, d(v t a vector?

  At twice the distance from a point charge, the strength of the )(luub twa,/ 5r(ovrmelectric field

  Is it possible to have a zero electric field value bemckrz ixp kltw u4lv+ 8n::446tween a negative and positi4t w nuklm46rvi4lk8p:xz:+ cve charge along the line joining the two charges?

  Is it possible to have a zero electric field valupdp1 emg1bn q)7qv+(g e between two positive charges along the line 1emn+v pq (gg)b71qd pjoining the two charges?

  Electric field lines near psit2d 4rtseu5s:1ql-r8y mnt v l6ive point charges

  The electric field shownkih b1+)1 qslkee53v l8ka7b c

  Can electric field lines intersect inmx41tha:d h 4h free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniforq vmtroao;s)w n+b. 1/m electric field. Give a statement concerning the electric fi mab1vt+ o.no;wrq s/)eld in the block's interior.

  If a solid metal sphere and a hollow metal sphere ofdsa.21jgu 8lz equal diameters are each given the same charge, the electric fielgu1djl.2sa8z d (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden 5a iut+3skoh0 k+: qne(t3mt jtable in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surfh(q3 +oej0n+ausm3t t :tk5ikace?

  If a conductor is in .t l:kbai* d-qh1ata8 electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundeokspzzg.l8* /g+1hwg g 2z)fud. As compared to the case without the hollow.ogz k+f1 z/pw8*g lu sgh2g)z sphere, the electric field at a point directly above the hollow sphere has

State three propertiecao x4rf*;r+4nd1ta es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electc2+nk4uirls2lg6d e: ex7z0i+ l6nse ron 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.w*w3vv g(;xk vkmzu693 msl0g How many more protons than electrons does this piece w6ku 0vzmvg9*3 mg svl3k(xw; of plastic have?

  What is the charge on 1 kg of protonsxhy-q0 gi 9 2pjxup+.mb39 vvo?

  An atomic nucleus has a cmwo k:1oe )n m:yp9f8gharge 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 of9y/-7xyooja(ri 4ygu 2.0 and -4.0 mC, respectively. What is the magnitude of the electric j9/gio(r 7yy- a yuxo4force between them?

  A 1.0-C charge is 15 m from a secondyz.;mgyqu 3n9 charge, and the force between them is 1.0 N. What is the magnitude of th3 qzum9yn.yg; e second charge?

  Two 1.0-C charges have a force between8fm sq/jn84tas8ms: dtrwn 99 them of 1.0 N. How far apart are they?

  The force between a 5k2e)8tgz+x fepgt 2se*5ima$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2 8zzv / :dqf)8fzhvl1u56xo fb.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electr)l8o58z vx:ff6db1 /zh ufvzqic force between them?

  Three identical point charges of 2.0 mob-tjdk5mv43ho*o6g v l yq+ 9C 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 tl6 5q9*+kvd-oj yg4vbohom3 which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC j2(o 6j76- fu oyizrjd6 00kfvp:vf lcis 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 magnf2j60i0 fcvpj6k6d 7r:lvyozf -( j ouitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 :apf1,oehbvx9g f0 * s= 2.00 mC at x = 1.00 m; Q2 = 3.00 mf0soh p v:b ,*9xegf1aC at x = 0; Q3 = -5.00 mC 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 lojx wmyuu+v 8:fo4*iz26k*n center of 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 charge if a third charge of -Q is placed at the lower-v6i *nf2wzou m+:8y 4l*u okjxleft corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at-a+kk-fpp mxaxtn/jjl4sh3r 38 w- 5a/il(kf (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net fxhjjl/r mt aw-4f k-+ -3pl8k / f5siaap3(kxnorce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Qe/ (y-hei:2 wfl .jk xvcxo/7a2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of2vlcxwj y/h:fe.-7 aki(x/oe the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an xcia+j +m* yx6equilateral triangle whichjay6 mx*cx+i+ 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 separated by 3.0 m. Aty z i;/e + yeu1z+mxny(nv,y:d what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic fouiz++y dmzxyeyn(y/ 1v,e: n; rce acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C c;4vnue/0l um,exw3ze ;) kw5 zz.f 3s le:vtnqharge is at x = 4.0 m. Where on t3z eq lz;3nlv:vwzkuexf/,ewu)n s e tm.045;he x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pl:gp.:eh4e.b2n h;kj l:yls0w j;iiq naced at x = 2a. Where can a third positive charge +q be placed so that the force eibe:iks:lh.0:;n. g4np qjjy l 2hw;on it is zero?

  A copper penny has a mass of 3.0 g. A total 9pb(5pgz9mtth9 kvu8 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 again5qial* tiqg6 +st the force of gravity by the attraction of a fixed proton some distance above it. How far above the electronl*a+6qqti5g i is the proton?

  Two 0.20-g metal spheres are hung -w kc3h3t:gizfrom a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the elk3zh c-3gtwi: ectrostatic 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 *ptkcd z dj 14eofgn0m/ -rdmk7;)zl(magnitude of the electric field at a distance of 1.0 m from the nuc)g- / *fm7crdmp dd;o0tljzk4(k1zne leus?

  What are the magnitude and direction of the electric field at a di uu7vdab ;:+ffstance of 1.50 m frab v :fud7fu;+om a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Wh yot .8foovbkvyh+z6 v2yqbi /8vj-6;at is the magnitude of the electric field at the2 i8- v;vbvyjyb zo8to6qvo+yfh 6/.k location of the test charge?

  A 5.0-C charge is 10 m from a n +5*qlbso+5sqeeawa. glq // small test charge. What is the direction of the electriceqnb*q+gol /q +5/laaes5 ws. field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitud4 hoe x/us-z2se of the force ux-ss heo2/z4 experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges ea ok1p -be59zs qu:hk2hmu.nc4ch have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electrick4 u skb zmhun5qhco-p e9.12: field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a m,d9ckznl louv;+k3(heter stick and a -4.0 mC charge is hc (oluvdnkz+39l k,;placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm ma/p1 mlrf f. kc5 tp:*yz0myue9rk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line jommkf/z9. ryypcp0 l5u 1*e t:fining 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 = 0.20 m. 6g x/( + wo.q9/1omk duvnstfmWhat is the magnitude of the electric field at the point midway (q/ g+otxdm6f9 1suwk omnv ./between them?

  Three 3.0 mC charges are at the three cornerj13e9)4yfq xz isg+7a :pd 3sfe.yfnes of a square of side 0.50 m. The last corner is occupiejy1s9)qe ngi.pea4fzf 7yfdsxe :33+ d by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed 3kaur;bt-/ m cat the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +tb/ka-ur3 ;cm 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 ix k tp5a: 37obj(qn: l:ou2caqs placed in a uniform electric field. What is th :qalcoaktq: 5bxpo(: u2j37n e magnitude of this electric field?

  A particle with a chargenah dv1n5d:v z;wc0 p. of 4.0 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 600fjxh y:x l(4m pv,iu;k(t. ba30 N/C pointing downward. What charge must be placed on the ball for it ( .a,ulf3 j;k:b4xpv tmiyh(x to be suspended?

  A foam ball of mass 0o2 rgk/nn6;n l:iniv*.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction o ; ki2novg:l/inr nn6*f the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What m zr:d1*0ybnp w (j4vlis the magnitude of: ( 0pbm4rynz*wdjl1 v the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What ob1 .vjoec j0c *1rnl-.nydqm4(r+yqis the electric field 6.0 cm from the center of the spher*c1moq1.4 0y.cn+rj y(jqon ebl -vdre?