State the law of conservation of electric charge.apo5cgbq+-dsmq8.j9 b + -szh

  Is it possible for two negat 6 iv8mtd5ekofk5.2 wbdsio:,:olea ; ive charges to attract each other?

  Is it possible for a positive and a negative charge to attract eacymqib t/.y(5 * )rkm7vfwm0zp h other?

  A glass rod is rubbed with a piece of silk. During the process the gl ls wh9w9r0-g x6*nx ;sjece;vass rod acquires ags*cs6rvhxjw ;;0e9l 9 en -wx positive charge and the silk

  A proton carries a

  The model of the atom sj;awg k3uca;7k+9yv7q wvgcs. 8fk/ shows a

  A neutral atom always hat o30eg-pa ,shs

  An atom has more electrons than protons. The atonz8w lg6,nclqs-z +o7m is

  Materials in which the electrons are bound very tightly to the nuclei avn4)c exf m/6tfc1byb: ofs1/yq; g/d re referred to byy1 4o;s/demx)fg1n//bfc c6t q:fvas

  Materials in which the electrons are boun+nu.h gt)itw h1 ke84hd very loosely to the nuclei and can move about freely within the material are referred to ai.h)t8 wkun ethh1g+4s

  A negatively charged rod is brought near one end of an uncharged metaln n2g7gboglr5/ wli 7uf /k(*znrdj43 bar. The end of the metal bar farthest from the charged rod will be cru/bl wkg*ln(/ dgnj74 ngiof732 zr 5harged

  Sphere A carries a net positive charge, and s7m(8u pdc8wjmphere B is neutral. They are placed near eachdmcj u mp(87w8 other 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 electroscope pol.4zt a0zb.xpsitively?

  An originally neutral electroscope is l- hy c:ny:p +/9xsxqzbriefly touched with a positively charged glas/:+y-z p9sxcxn yql:hs rod. The electroscope

  An originally neutral electrosc 5kr+l lqo68s* .k wugx.xin5aope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, thi lrg.5x +ok.aq*n85lksx6uwe electroscope

  A positive object touches a neutral electroscope, and the leaves separatey k7urhu9 (ni 5t2ns)p. Then a negatuu 7knnpyri9)25s ht( ive object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charh) bt78wj4kr nged object is placed 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 touch the negative object. At no time does either ball touch the negative object. What is the final cha7r8)b khwntj4 rge on each ball?

  Charge is

  What are the units of the Coulomb constant. zv43uwtlq *yv5- mf/fxbcwi.t8ni) $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distan+g 0 fjlpbwy4f;.ua do+:tx3 8mo se:fce d. The first charge is larger inm+yl d a03osw ju.4pe :fgb:tfo8+; fx magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral.5ny0 e netb;: p)degwiax6g8 + They are placed near each other onb8en;w gn:ae p0e6+tgxy) id 5 an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain for y2.irt-(pywebo v7en j:52dc ce. If the charges on both objects are doubled with no change in separation, the forc.jb2reo c5 p( 7e:wt2ydin-vye between them

  Two charges are separated by a distance d and ex9n j):plpa 7wtu.ft +tert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, 9ltu:ptn7.+ft) j pwawhat are the new mutual forces?

  Two charged objects attract each other with a force F. Whtrf11tym:x :4.n))yznzt uhn at happens to the force between them if one charge is doubled, the other charge is tripled, and the separationx)t)n tut mny:hyr:1z1z.f4 n 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,nh5 ,hyf/ zwm a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electry,hf zmw5h,n/ on?

  An electron and a proton kk7fr9jzkdj1/ o;a9nare separated by a distance of 1.0 m. What happens to the magnitude of the force on the first el97;jrnk1/9o k adzf kjectron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.06 ;): ;c if(f4 vyimg zxeo/2(ugmwnud m. What happens to the size of the force on the proton if the electron isz ;mw /6i v(4c n(uf2d)xgg;u:ye mfoi moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the centedie7k9(k 8c uqr of a square. 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 cent( ik ue89kqdc7er. 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 atmd)j1f;mx (tsk f(z*z 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 at)zzjsk fx*f 1(;md(mcts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is1uw,q.ohvz- c not a vector?

  At twice the distance from a point charge, the strengt)fktv:s1 ;fhm 78w.muzdjd65 zd h;tk h of the electric field

  Is it possible to have a zero electric field value between a negative an kzb+6kc,j:b/u* ce9t*ffkj ud positive charge along thejfzu+9 *cejuck fk/,* t6:bk b line joining the two charges?

  Is it possible to have a zero electric fielwlymhvdfw84+:eac.*)r bc : ad value between two positive charges w wr 4m8.* e:)adc byc+hf:avlalong the line joining the two charges?

  Electric field lines near psitive poin f/p .m;sip-ecuyw12mt charges

  The electric field showvt:4yr :hpu-o c61mvz n

  Can electric field lines intersect in yd3u-(gafr z ,d)rh,w free space?

  A solid block of metal in electrostatic equilibrium phquz0hc+8 h. is placed in a uniform electric field. Give a statemenhuqhp80 +hz.c t concerning the electric field in the block's interior.

  If a solid metal sphere and a q:mpd; hwb5q2iqldm +;:by(g hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway bqmp +;d(::qgqdmlb 5;2wh b yietween the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniformwb vqp(42 ojsg)c/ ts,gf lpu;,3de8o electric field is directed straight upward. What can be said concerning the charge on the block's sg3u;ep)(od8fc, ob4wt 2 qgv,sl / jptop surface?

  If a conductor is in electros :u3quxeo+ -rztatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grounde9mdb .3dy* vr s:tr*ggxd8si.d. As compared to the case without the hollow sphere, the electric field at a poindd8rs :9b 3x**yidv .grmg s.tt directly above the hollow sphere has

State three properties of conductors 2 ; hw7w wn-v8-jit9hdd (ztnxin static equilibrium.

State Gauss's law.

  The charge carried by oneb3j df0kkt +-c electron 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 proton *d jzohm5wu-v1am h e;66haw1s than electrons does this piece of plastic adw6*1houjz -ehav1 whm5m6; have?

  What is the charge on 1 kgm69e fu):7hl x6irgawo; +wby of protons?

  An atomic nucleus has a chargs -c2e6gvzv3ge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separate8g;4 x0qxb..swsnj a 5oip7yud by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of u0 8. syoj7 ;4pigb.xswanq5xthe electric force between them?

  A 1.0-C charge is 15 m from a second cha)z o rv8j5u) h ;1w9-ifkge afvx.yb8mrge, and the force between them is 1.0 N. What is the magnitude of the secg) fro) hy8v jw5vxmzf; i-eb8k9a1.uond charge?

  Two 1.0-C charges have 7jik m5s +kbg+a force between them of 1.0 N. How far apart are they?

  The force between a kfyk*lo:dns ir,2 um:1vf,y 0$30 \; mC$ 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. If-b9 0rou(.xyg*la/u o hg btj; they are moved to a new separation of 8.0 cm, who-;b jx 9(u.thbgoy/* ag 0rluat is the electric force between them?

  Three identical point chargeso ulv2vn3v:to1 1b5xwb2(fd7r3 xz ws 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 magniw2b 7b2u(x vvs53rfxl3tn1w1o:o zvd tude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the i hsx-yjc04a9 x-axis. 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. What are the magnitude and directio04- iajx9s hycn of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.q f9vqgjn th+61( b,ov00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at + ,nv96fhbvqoj(gt1q x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is ddsl0mqgvw1 9ey 21fq16eopf4h1/ qiplaced at the 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 th qd1efvhwe1lfqgmo/ 6pdiq 190124 sy e 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 = 3s-m d0o41gf: xj p /xyntkeo.-1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atm otp.jy e01osf-43dk x/g nx: (0, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atubq,x:t)v: b j0r vq6r (0, 0). :x6r,j0uvqq )vb:rbt What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3b;f 9w ij )/ xvk*rzl3bca*s: h9yuab5.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of t ;yxia9c w3z )b:lf jrab9/5kh*s*ubvhe electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whatxi x6nrnf,r9v*x g5 gz*s,i*d point, on a line betwen,izsv *,9 56*r xfdxgigr*xnen 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 the origin and a +9.0-C charge is at x = 4.0 m. Where cqe;t/af ;)/e 0q(fypskng ig0ex 9*mon the x-axis can a third charge be placed so the net force on it is zero?xmg/s )ef p/90y (eq0iag;*;et cqknf

  Charge +2q is placed at the origin and charge -q k*.izgl c2 y67iyfx b4t,(ad qis placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is 4i(xt z26,7cy l g*dia fqky.bzero?

  A copper penny has a mass of 3.0 u0uchahd2/0frbrm1v 2pzj, 6 g. 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 gr4 3 ptap7so 9sntkfiq7;ms:t+r(i7 bxavity by the attraction of a fixed proton some distance above it. How far abovep:9fs st+3;onrt7m(4 7a i7ispxkbq t the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductin1s(7+v0gm cch-s ;x3y pmtq d-vrsvt92uh 6ukg threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the thrvt+2sg d6xs0scv;(yumhp h3 1m vc7qu-t r-9keads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. Whpsc mt 5e:bx976eg+ux at is the magnitude of the electric field at a distance of 1.0 m from the n65tpxx mesg+ue9:7 cb ucleus?

  What are the magnitude and direction of the electric field at avv ss. ) uv9rofna9ysd*55s g* distance of 1.50 m from a 50.0-nC chargn5gvva. s )r* 9 s5ysovu9*dfse?

  A 5.0-C charge is 10 m from/b dc2a3 g.qcr a small test charge. What is the magnitude of the electr2a.3/d gbcq cric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction ofxs-x 7ty t; ;e ly8e/qbwsi rf.:p/a8t the electric fiel res: fy/8y.-7q e ;/tpwx8;ilsabtt xd?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ofn22 m-ivt2rez the force experienced m22zvei2rt- n by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and a , ko-pe2joj8yaml/- are separated by a distance of 4.0 m. What is the electric field at a point midway between the two chak ,loj -mpj8/a e-oa2yrges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stv- c0br nzn :t,ye:ad28l7qbqe4x jt-ick and a -4.0 mC charge is placed at the 50 cm mark. What is the elecvl708qqb ycenx, a:t4:-d bnr je-zt 2tric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stic)q w.i ari n ,yy1:ku;:)gkqhtk and a -4.0 mC charge is placed at the 50 cm mark. At what point1 wuk:, yt;:n.qqiah grk))yi on a line joining the two charges is the electric field zero?

  Two point charges of +3.:. nm,gk17 pd.6 ws ld imb1pinj;gvz10 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of t .,g:nm7sm6jil;11gi nd w1 vpdp .bzkhe electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50(.v+fjw4mjxxt wglol4+qi3 :(p rl 6p m. The last corner is occupied by a -3.0 mC charge. Find the jo +wp(p:w xrxtl4fql 3jm4i.l(g +v6 electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at tb4*.hpk txgz.8v y pt.he corners of the square as fy ppkv .t8.h4gzbt.*x ollows: +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)ba e*y5k jeja ;cjm9) on a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this ey)jj b j5ck)ee ma;a*9lectric field?

  A particle with a chargda cg aa;hz;gd/npg+ b)od 5-8e 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 mae+ gx9vklnw+/wt3 q3zss 0.120 g is placed in an electric field of 6000 N/C pointinglz+3kw3/ vwgx tnq +9e 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 of -2.00 nC. The x 4s1. cyxq(hdball is placed inside a uniform electric field, and is suspended against the force of gravityyxq1xh ds( .4c. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm car+ 5;ey3vbef2c.9ym)n* v3svwgsh 1q c,xmwtrries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's sv w wsrbt3.)1nmscfy*m,+y e9 g 5;v3e2xcqhv urface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elec ilnl( :wzlz,-tric field 6.0 cm from th:ll,iz-w(nlz e center of the sphere?