State the law of conservation of electrdy4pc 2eu36 jsic charge.

  Is it possible for two negatip k.;b lpdb68y t7td9f iy.kk,ve charges to attract each other?

  Is it possible for a positive and a negae o/h5irvqcb9*co*, otive charge to attract each other?

  A glass rod is rubbed with a piew gphhd5y .c*4ce of silk. During the process the glass rod acquires a po4.y gh5c*wphdsitive charge and the silk

  A proton carries a

  The model of the atom shows audzfww./3tb1s9(cds dptqi so0r8)7

  A neutral atom always2i8 9yfgaen0fdtn h)/)xmw 4d has

  An atom has more electrons than protons. 7 +ishjo( z,a6oez4zqs8k;xm The atom is

  Materials in which the electrons are bound very tightly to the nuclei arep rdck**n.:d m referred.*k*: m dcpnrd to as

  Materials in which the electrons are bound very loosely tg-yx2 -b(i o-3c7sz/ptuvin mvm3pk :o the nuclei and can move ak -myzmp3-s (u/t:-ni xv cobg3pi7v2bout freely within the material are referred to as

  A negatively charged rod is brought near one end of an unchac c7b. x2( pvl1z:sasjrged metal bar. The end of the metal bar farthest from the charged7 s(l j c:p.zsacx12bv rod will be charged

  Sphere A carries a net po kyrk 9lm2 oqh(p6,iv k(h yv7y1wy*2xsitive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement iihv,q7vk69 wk(1ryhlxo2 py *2(yk my s correct?

  How can a negatively charged rod charge an electrosc m46-)z p9rh ;idg h+b;kzrrftope positively?

  An originally neutral electroscope is briefly touched with a positiv4*(yyu ppg1 l*fv(e vjely charged glass rod. The electroscop e(*v vyupf*jl(14ygpe

  An originally neutral electroscope is grounded briefly whilsn uc+6h;iz-*q m gj9ae a positively charged glass rod is held near it. After the glass rod is removed, the elec;6 g-mcj+aunzh9 i* qstroscope

  A positive object toucheywnj-+c q9ra,s a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the l ry- q+an9c,jweaves?

  A large negatively charged object is placed on an insulated table.k gjc cnv( 1w4q*y dh(t3:ya+d 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 balkvgtn(hqy yd+cc3*w 4(1jd :al, 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 cool+q60tg/oe w nstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largeba 1y /*as,5bcn dtyc4ki(jow qq w)6*r in magnitude than the second charqy4ya(/* cw,*j bs c) bn16awtkdqo 5ige.

  Sphere A carries a net charge and sphere B isy vo50d+ zuhz3 neutral. They are placed near each other on an insulated to+hyvd05 zzu3 able. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other wit(c6o. ;dxvh rqc5(b mth a certain force. If the charges on both objects are doubled with no chanxc6cq(5 borvm.dt ;h(ge in separation, the force between them

  Two charges are separated by a distan*psd(f; ;m h6krfr.. yf r:bwkce d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, wyf6 .;rr( fsmbr dhk.k*fw:p;hat are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to vvb5y;v05c6ahoya w; the force between them if one charge is doubled, the other charge is tripled, and the sep y5v vah;;05o bv6cwyaaration 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 dis enue4e5z2* qeos 4qz4tance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the fz4 5 4e24ezouqse nqe*irst electron?

  An electron and a proton are separatw zup+ wt507e4whvvt *ed by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is pla7tve5 ww whu0+4t pz*vced next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens zr gx;; myr1im,fj bcx:qn6y ljn+/y2x :h3p1to the size of the force on the proton if the electron is moved 0.50 m closer to the protogxr1 z lyn+2;cyhx3 rn qmmi6 f:p jj;x/b1y:,n?

  A point charge of +Q is placed at the center of a square. When a second pointlf5 1gb: wqd(x*69)ue cowcwo 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 oth1 cwwgxf b* c o6o9d5(le)qwu:er 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 b +hu4heah)5a 3yse i.is placed at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatica )5e i4.3seyuabhh+h 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 vqa bvfjta :*+:n)v:62 gvis2nxsxq5 aector?

  At twice the distance from a point charge, the strength of the electric fiy 7o/ga2 gko5ield

  Is it possible to have a zero electric field value betweolt :)om/ lz)pwjh6f0en a negative and positive charge along the line joining the tw: 0zo6p)lflom/)jtwh o charges?

  Is it possible to have a zero electric field valm+ g06*(-kdl3f05 dfr z sqdtkmd8xo uue between two positive charges al+xdo3 uf(m ldzmfd60r-kg08ksq*5 td ong the line joining the two charges?

  Electric field lines near psitive ilomdq 8 v5zjm r(x96fpst,/7point charges

  The electric field sx:56 ckh x a6xz,dc/mchown

  Can electric field lines intersect in freh zl7 9xl))xh0x2fc k h9wvrl/e space?

  A solid block of metal in electrostatic equivwg/1zu- fv j)librium is placed in a uniform electric field. Give a statement concerning uf1v)-/v wgzj the electric field in the block's interior.

  If a solid metal sphere and a hp4lrs. u lmv, 9tadi4hr;t7l7ollow metal sphere of equal diameters are each given the same charge, the electric field4a,l 7;u.i t7l hm94rlrpvstd (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a sk 1mnhvzcyj+:3.6p.z1r8p; xtzt v ysm4k6muniform electric field is directed straip.;m h yz1m13s6+ctjkkzsn6y:x vrz .8tpm4v ght upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrky 7a(1wosv)tyz1* osium near an electric charge

  A positive point charge is enclosed p/i0 -mat4j k g;-tnj)yxc*z din a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field 0g*/ ym--;d z k4xcjniapt)tj at a point directly above the hollow sphere has

State three properties of conductors in sq61v7j8wz+zu au))j vu/be dgtatic equilibrium.

State Gauss's law.

  The charge carried by one rc x 4nw8zk3ndt q46m8hw:2nx 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. Howisuyp- c +pg(( many more protons than ele( p (iusg+ycp-ctrons does this piece of plastic have?

  What is the charge on 1 kp,di 2*3*0otlx )rkkb e)vbbzzvx-0 ug of protons?

  An atomic nucleus has a charge ofumjbjoyex*fga*,k0;uqni +a56 , b*y $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, hmvq/thnz,;48.hii z-irg tk2 we 6 8ogave charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between them k28 hh8q.ot-mw, ii4vgg6ze/t nr; zi?

  A 1.0-C charge is 15 m from a second charge, and the uhd: 4c7+kw qtforce between them is 1.0 N. cht4+ :qk duw7 What is the magnitude of the second charge?

  Two 1.0-C charges hav uzr(oui,gn(gcjr4afp +935ve a force between them of 1.0 N. How far apart are they?

  The force between a /sjbg: 6q 2odn/onlhxs8p x/, $30 \; mC$ 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 they af)qyvu b-z;l:7*zvsz re m*vb-zqsy f) z:z 7u;lvoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x81ia usfk0 o9;baqoq4-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 ank0b8i f;1qsu9oo q4aa d direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A c3e+rn n4d*tvkharge 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+ekd nv3*4 rtn the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positionk + qi 3 :jjtdm:/ewt(aebpbh70; *xuxs: 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 magnitude of the force on the 3.00-mC*xb( k 0jj3 b7ai:tquweetxdm:;+h p/ charge?

  A point charge of +Q is placed at the center of a square, and a second point89 +wz.+znj r8dz10h kbubmnu w(kya3 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-left corn 1u (kj98uy kw0b3az zn+mdn+ 8w.zbrher?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -uvuh :3sm/; e-vfue3l1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What iuh eu-e /u3vv:3ls;fms 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 =ysev ,*9 okqe2 5.0 nC is at (0, 0). What is the direction of teo ,vy2* q9keshe net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral t vw5n w9.4kxs5ka -fkwriangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the f9xw akswk5 -.kw5nv4charges?

  Consider point charges of +Q and +sb;71vd,r ofp;p kt d:4Q, which are separated by 3.0 m. At what point, on p7ts 1pvo;d d;f: ,kbra line between 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. 8q +s7xry9fja3juwbl)y v7.q Where on the x-axis can a third charge be placed so the net force on it is sw u7 y f+j79x3vlbqrjq )8.ayzero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a.6 7 d4ikvydz2p Where can a third positive charge +q be pk67vdiz24d p ylaced so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total o0 l8dgh::n eunf $4.0 \times 10^{12} \; electrons$ 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 attracv.v,ncb-lg+5d2y i yy288 zfm ho mi* rlh,1hation of a fixed proton some distance above it. How far above the electroc+ m y v2 2,f8i8lahyb-n l5y1gmir*zodh ,v.hn is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threaich6t,l mru3n/ kn m 94hhza-:ds which are 30 cm long. Both are given idemha/ h 4c:3ilzu n6ktm 9-hr,nntical 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 ofi)1tgxeoh 9n2*j v uu8eo6+ co +40e. What is the magnitude of the electric field a hiuetng6o9u)2 jov coxe* 1+8t a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of;a*g2d vlpxyg2t /y o2 1.50 m fy;y2 ggtav p2do 2x/*lrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a s 2,fg-omvum6 bmall test charge. What is the magnitude of the electric field at the location of the test chargef6mg 2 -bvmuo,?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of tku pj4;hryq12l 0rdjtk6 gby451 k5vihe electr j6 u41gy;p 14k kt0blrvkhdr 5jyqi52ic field?

  A 5.0-C charge is 10 m from a small g/l2/)ntb)dk (wsg h ltest charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of theggllwdk( )2 hb)t//n s test charge?

  Two point charges each have a value of 3.0 C andrpks phgg+;)3we ( 0dcx9 /rem6zstd6 are separated by a distance of 4.0 m. What is the esp)es+hd r(zc0dtr ;6p /9ewxg36kmglectric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -s3olj8 p0;il-qmbkznsn w66 m 7r/v),hc fti(4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 c/ lbw zisht qr6 kcim8n73)jm(ol-0s;p f,nv6 m mark?

  A 5.0-mC charge is placed at the 0 cm mark oi *.w7jw4lqv82jl xkm*jok 8v f a meter stick and a -4.0 mC charge is placed at the 50 w* wvik jom8kvx8 7l4 2qjj.l*cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges offif n -u+a0qf( +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 poinqfa-n +ffi(0ut midway between them?

  Three 3.0 mC charges are at the thrx/f2hzc/1 -zi y vwuj4ee 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 centerh2jy- i//cfu1z4z xvw of the square.

  Consider a square which is 1.0 m onwo,5p7 aozxr 8 a side. Charges are placed at the corners of the squareor 7zo5,pxwa8 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 field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it wmvc+4tow vo )k,,goxz yzt);i:8 ;fais placed in a uniform electric field. W8 vaoo;:zfw;mikxz yt ,v )og+t4)w,chat is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass zm0u 8j.ufdt 9of $5.0 \times 10^{-3} \; kg$. 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 fv9 kr3tu+: 08bvfktusield of 6000 N/C pointing downward. What charge must be placed on the 0 :b9vt8tvk k+usf3urball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. *+omn+ j;nx4ge7;pf2 ovijeb1(b os w The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What aw b+fnv7 p+g mijoon 2xbs1*oj;ee (;4re the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carriei6vw.n ke6 e ty*o8 4tg2wvoj;s a charge of +2.0 mC. What is the magnitude of tkvt*w 6g 4. in6t;oy2weve j8ohe 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.fhfj3lyn8;,z7x4 qt fi2jux( What is the electric field 6.0 cm from the center of the sphere(f283i q7z x,jt yhf 4njl;ufx?