State the law of conservation of electric chargedm f2wl37fsn/pbr t .2.

  Is it possible for two negative c oatqedr1u :r-3ncc+run- 8:g2n g8op harges to attract each other?

  Is it possible for a positive and a negative5 0dhc.guhxtxf 8n k03 charge to attract each other?

  A glass rod is rubbed withun o 8fx:x(i(h a piece of silk. During the process the glass rod acquires a positive charge andnf 8i hux((x:o the silk

  A proton carries a

  The model of the atom so+wg4,j3tpz 7p-y .sg(t0: tkn ayzsf hows a

  A neutral atom always67hs-8 2 udewc s4kbrs:j6rzq has

  An atom has more electrons;1m d:ae czxg1 than protons. The atom is

  Materials in which the electrons are bound very tighl+1ynl ord1 4wtly to the nuclei are referred to 1+lwo 4dnlr1yas

  Materials in which the ped u89is fk4f)m2) odtpb 5s2kg7dy. electrons are bound very loosely to the nuclei and can move about fsip8 g9dde) fs.2p umdfyk 7t2o k)b54reely within the material are referred to as

  A negatively charged rod is brought near one end of an unx ,tj8. au fk m2:yx0nq-8gunxcharged metal bar. The end-,xang 8:qjx0 .t 8 2ufuknymx of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positiveyv5 wckcw oj,oyc,ij.(6+u kv mxa )3: charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched wita,v6j + ,.kuyic c 3w:cy(vw)j5xkoom h a wire that is grounded. Which statement is correct?

  How can a negatively qguod 6m / 45ej.t,wkacharged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a posnyhx 2a85 xjgj2/xw:6bgw 2er itively charged glass rod2ng2 x5xarwhg6 82exbw/ yj:j . The electroscope

  An originally neutral electroscoz iwew4 num6) ef2.4ocpe is grounded briefly while a positively charged glass rod is held near it. After the ze.nwiw)644e uc2m foglass rod is removed, the electroscope

  A positive object touches a neutral electro l*,/ llsibqsw.5*bdkscope, and the leaves separate. Then a negative object is brought near the electroscope, but doe.bwl lsb*5lis*,qdk /s not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral me be6tupkg659htallic ball rolls straight toward the object, but stops before it touches it. A second neutral metalep5gt hu9b 6k6lic 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 each ball?

  Charge is

  What are the units of the Coulomb constantvq12boa k.+xh $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first ch5g j5tyfzm3,warge is larger in magnitude ,m3gj5wt yzf5than the second charge.

  Sphere A carries a net charge an6je.15 dkn c6so6tclw 7f 1apfd sphere B is neutral. They are placed near each other on an insulated table. Which statement best desc 6.7tdkl1p6c16c jewn 5sfo afribes the electrostatic force between them?

  Two charged objects attract each othew a qb.8/kp ,za c58nxky6b.fbr with a certain force. If the charges on both objects are doubled with no change in separation, thz6yp.kb bx/c5a b8nq8.w,fak e force between them

  Two charges are separated by a distanceww7v c cbz2nb2:m0yx 2 d and exert mutual attractive forces of F on each other. If the charges are separated by a distancvc wm272 2xwy nz:cbb0e of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the forcm e u6t7hsom94e between them if one charge is doubled, the other charge is tripled, and the separation distance between their ch9etmu7om s 64enters is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distad0;1seyn0th2j ,q5 9zlcgyjf nce of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the fienjs,2y0g590lyqz1fht ;d j crst electron?

  An electron and a proton are separated by a distance of 1.0 m. Whnupyqc,:jf 55 at happens to the magnitude of the fon u:5,yjqfp 5crce on the first electron if a second electron is placed next to the proton?

  An electron and a proton are sen 65lwrdb+8t gyz,y n.parated by a distance of 1.0 m. What happens to the size of the forceb+8rw6y,n5t.zd lyng on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of l6q.;vob d ue/a square. When a second point charge of -Q is placed aq ./dovl 6e;ubt 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 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 cent5hmrs h7*5u-zosz,, kku r o-aroid 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 i-o *uz rm h,rh5z ok75u-k,ssat. 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 no)(mm:oj. br4d, j1 x qd0+ xiyzm2guozt a vector?

  At twice the distance z53,/ czz yzstfrom a point charge, the strength of the electric field

  Is it possible to have a o0wvweiz2v,9 zero electric field value between a negative and positive charge along the line joining 0vi,z9vwoe2w the two charges?

  Is it possible to have a zero electric field value between tw6/-ew,ui j-m5*cpqibmo4ozcyr ; 5we o positive charges alongcci/zw6p4jmyoq 5 web5 uim-,r ;eo-* the line joining the two charges?

  Electric field lines near psitivetr6n ikbr; .1yo 4/+ufnvisd, point charges

  The electric field shownzhf+fc0q/ b5)hw * imn

  Can electric field lines intersect in fbrwn6c* adt, suq(fd 9+:gay, ree space?

  A solid block of metal in electrostatic equilibrium is plac:oyw+m cr. 9sh93 qmb9 1trysfed in a uniform electric field. Give a statement concerning the elec s9 sqo39fmr 1rytc.m+w h9:bytric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamezm u1se hst251jc-0x4js fa6 jters are each given the same charge, tj0e1 jmas1 cu 2- x6fh4zst5sjhe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a woodenjcx 5- zzibsl-*a0d3e table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's t*0zla es3 5xbizdj c--op surface?

  If a conductor is in electrostatic equilibrium near an electri 3lyf a345detlc charge

  A positive point charge is enclosed in a howd n/ x)it)7g6rw/q)fai fj 9mllow metallic sphere that is grounded. As compared to the cnj 6w ))7ftfig) amid rw/x/9qase without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of condv85qc ab xn6,guctors in static equilibrium.

State Gauss's law.

  The charge carried by one 9zi:i f. /bveyy(u4ofelectron 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 pr4v v w0 mu0qodf9/9vndfvxa7(f09 uv xij7p/cotons than electrons does this piece of plaij(/daw 0nmcx9 97ovvffv q 0 u/fpd7409xvuvstic have?

  What is the charge on 1 kg of pvpohx .n l;5x3+ unjo;rotons?

  An atomic nucleus has a c. woul5gw8mtw6) 5aie ib,(mpharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated byd:qp5vgy(t:1qqkb( e 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the egkp(q vq: :(bt1y 5eqdlectric force between them?

  A 1.0-C charge is 15 m fromy5r yq,v5j(hn a second charge, and the force between them is 1.0 N. What is the ma r,jnq5h 5v(yygnitude of the second charge?

  Two 1.0-C charges have a force bezl5lqof; c;:gtween them of 1.0 N. How far apart are they?

  The force between a vpuz*q. lmwx7 6.-4 8vyneg gdglr2 i)$30 \; mC$ 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. cn9. 5yf+muy/c7ix, c05vgpa ipfb9t If they are moved to a new sep . u 9am,pipyc705bicx5tg +/n ffyc9varation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on thcp 1rp(x -snl60x6lt xe x-axis. The first charge is at the origin, the seccrpn- xlsx601x ptl6(ond 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-ax oohc9.hk4qoj,g) f9/ kvo :uy5( dumvis. 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. uckhy uq 99h.(ovo/j)kfogv4,d5mo: 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 following p ()qta x5gqe6xsmz3p0t b7v r4ositions: 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. 4tq 5x)p(ba 70xez6v 3gqstmr 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 square,: k j ev1o g21k/f-gdg.jcjv/e and a second point charge of -Q is placed at the upper-left core/ 1ej./gjc d 1vkkog- jf:2gvner. 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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.jg+02hb2iluz8ddmgw 2u7 6 uu0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force o uu2 g+z i87m6hdjgb du22w0lun the 5.0 nC charge?

  Q1 = 6.0 nC is at (03 s;evqv:e2ejld4 t0e.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 ft:4e;q 3lvsvj 2de0 eeorce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices ofia/9l;-neq5tiduv p:wkx9 o 2 an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forcl9/v-ix9u :q ;i tnok5adepw2 e which acts on any one of the charges?

  Consider point charges of +Q and +4Q, whi1wxsg j;r jq1w*zi+2u0gct 0y ch are separated by 3.0 m. At what point, on a line between the two charges, would itgcywux*1 qi 0 gj s+rj0tz1w;2 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 the origin and a +9.0-C charge is at x = 4.0 m. Whv xfy(bl4 ,(yei 8mr;lere on the x-axis can a third charge be placed so the net force o;,bvlf8xyile r y 4m((n it is zero?

  Charge +2q is placed at the origin and charge -jdqgy, 804ffxa, sbfw e/t 5s.q is placed at x = 2a. Where can a third positive charge +q be placed so that the force osx w feqfa8 dy5f tb.,jg04s,/n it is zero?

  A copper penny has a mass of 3.0 g. Ay 1d 4br22e cxceo.-vn8v6hb o 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 attraction of a fix; y zs g:bhk8mjay3u/8ed proton some distance above it. How far above the electron is thjmz :b8;8y /auky s3ghe proton?

  Two 0.20-g metal spheres are hung from a common point by noncondndln-th 271yc ucting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsio2d1y ht lncn7-n 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 electric x6usn ,btz ;y,uaa()j78;i0jvxbo jcfield at a distance of 1.0 m frj ) ;7;uj xytbacz6uixb n0s ,(j8ao,vom the nucleus?

  What are the magnitude and direction of the electric field at a diste +f0drgt e6ke eoik/: a/++t ;jzwb/jance of 1.50 m f6kjd/;e/ ejk+fttw+0aee+o g b: ri /zrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test cha9l -7 wqqvag7urge. What is the magnitude of the electricg7vqq9 lw u-a7 field at the location of the test charge?

  A 5.0-C charge is 10 m frctb7;n 5e8eqk om a small test charge. What is the direction of the elect bkt7 e5e;qcn8ric field?

  A 5.0-C charge is 10 m from a small test charge. What is thel2*1 3+r5i yq m04xtlfawvmhw magnitude of the force experienced by a 1.0 nC chargel2ma054 vh 1y 3wqwi tr*xl+mf placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated bych5b1lo +ea ;w a distance of 4.0 m. What is th la ;5+hcewbo1e electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm m)tarc9 g7 )jlsark of a meter stick and a -4.0 mC charge is placa)ct9 jr g)7sled at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at n4 mdg)yj+gaj(z bosa79-kvx 3 kj:;rthe 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what+ ajx-)kg97; 3z4dynsjjrgav ko: m( b point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mr,,)v f4 os4yq 7ymqc0ws)mnwC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field amy,qvn4fq)cr0 my4,o) w s w7st the point midway between them?

  Three 3.0 mC charges are(/ jo5amcx6rc :rdu;5e ka0ag at the three corners of a square of side 0.50 m. The last co r/0g5o6a:; 5cjxce(karmd au rner is occupied 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. 7,,wrsspx-+cqz sw(* aluu j) Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1,wl+ z)jau,*sc -s(7u,wr qsx p 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 plan4v/7yg2ark*1f mer 2 jhztolz)6v e: ced in a uniform electric field. What is the magnitude of this electric field?zovh 2zke7jrr a1m:* el6 v2/gyt) n4f

  A particle with a charge of 4.0 mm. pflq21u0 ,umd s+kxC 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 anlu9na7v yl.u 5 electric field of 6000 N/C pointing9 ayl uv.5n7ul downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge oze1+/ b7auf*ksgj0 z91 glzawf -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 of the elez1sk j aa/f+z ul7g 0zg1w*be9ctric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC.5f9xo r .vxtv(d 5i)jo What is the magnitude of the electric field 5.0 cm from the sphere'(v.j)x95iotv o 5rfxds surface?

  A metal sphere of radius 2.0 cm carriesw*9rff 1di, nb a charge of 3.0 mC. What is the electric91*fidrw b f,n field 6.0 cm from the center of the sphere?