State the law of conservation of ele)n tz c-dk2k2ysur31d ctric charge.

  Is it possible for two negative charges toj -fn mngk3v7d-yfu2v c03z0 e attract each other?

  Is it possible for a positive and a negative ch3/x+lc smas-xarge to attract each other?

  A glass rod is rubbed with a piece of silk.xe:tk9-0 jusd During the process the glass rod acquires a positive charge and the sitdju:-ex 09 sklk

  A proton carries a

  The model of the atom shoje;j61ww4 nl9(xi 9ca 0x9kxmpk ik+8 mo8cy yws a

  A neutral atom always hamtovg s50zd 9;s

  An atom has more electrons than p ht+8n;70 wt6eui6; tsobl ip9pazn.d rotons. The atom is

  Materials in which the electrons are bound very tightly to th*xwd :m)ch 9kl:)uvjle nuclei are referred toml:vwxkh*d ):uj) l9c as

  Materials in which the elect )wvr evz:(l +ejwlz2xn /+f*jrons are bound very loosely to the nuclei and can move about freely within the mat/l2+lrxww):(j v*z e z +fvjneerial are referred to as

  A negatively charged -lar(w) k yjwjl.;4*pqqxw)yrod is brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chal)y .wwqj*-q )r (k;a4lw pjxyrged

  Sphere A carries a net positive charge, and sphere B is neutralqacz ctlhuis 6i03p jb(9d u m-1g(jq4t94c-z. They are placed near each other on an insulated table. Sp-p0 9 uh4sz (t4ljimg69 1zdqtb(c-a3ij uccqhere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod krl:8e )fq 9fxcharge an electroscope positively?

  An originally neutral electroscope is briefly touched wirg( onrjf96y3th a positively charged glass rodojn6 rg(rfy3 9. The electroscope

  An originally neutral electroscope is grounded briefly while a positively chas7 ;1kzl,qw co rgav*0rged glasc;ok g0*1,r7q lwzs vas rod is held near it. After the glass rod is removed, the electroscope

  A positive object to:m, s(al 6ubhwuches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but(al,bh :musw6 does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tablex/8 gdpr 9:ba50ppfg*rgt:m9vq ha7h. 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 fi :hgp0tmgpvpag 9rqbx 5/8:d*hfa9 r 7nal charge on each ball?

  Charge is

  What are the units of t srdd j +;xf.3qbzceit4 xd,)0he Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge irx lb2qj kly+z9+uz 7*s larger in uzy x+ +qrk9l2jb7zl* magnitude than the second charge.

  Sphere A carries a net charge and spherrpvxq a o.,0sq(5g yx4e B is neutral. They are placed near each other on an insulated table. Which statement 4y0as p vx.5x(qorg ,qbest describes the electrostatic force between them?

  Two charged objects 97a5r8mr+x vl xdxwn5qt:n h (attract each other with a certain force. If the charges on both objects are doubxn7r nd:vahtlwq8(r95 +xx m5led with no change in separation, the force between them

  Two charges are separated by a distance t38d3do q,i, vl8ta5vdk2bxxd and exert mutual attractive forces of F on each other. If the charges are separated by a distance 3 8 tx, lk qv8o3bxd5tddv,2iaof d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens t6s0s j xl1r *ec;p:.etk 5t5f:anyuwl o the force between them i.et yfswsll j61tan;eu5kp0cr5: :* xf one charge is doubled, 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 arz+qo rn;e:dop- (qwif.* kl)re separated by a distance of 1.0 m. What happens to the magnitude of the force on the f;*z+reo ).wp (l-q:odqkirn proton if a second electron is placed next to the first electron?

  An electron and a proton are)n+7fcdaen9md3jt as / 4i+ ws separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the pdif7/ + sj9ns+)m 3d4weaatc nroton?

  An electron and a proton are separated bilkf0 e7hlo -p * t/8ce/pb)uwy a distance of 1.0 m. What happens to the slp/b8t0*fe/ pe khl - wocu)7iize of the force 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 a square. When a seco ec6d;z 7ggr2sibimnyuo4 *khq6tv)ktq-. . +nd point charge of -Q is placed at one of the square's corners, it is obsk2 z7 mni4 .*t ;+iggcsd66kvqb)y o.re huqt-erved 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 +Q4ls. n/rrv/d f 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 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 verticend/vrlf.4 r/ ss?

  Which of the following is not a vectj: fn israd+h6whm). (or?

  At twice the distance from a point charge, the strength of the elect p:hvmg++xymn58gna ynmh:,2ric field

  Is it possible to have a zero electric field valymx8kl m .p ccnrm 8zssj6c34:cusx): ;:ykh5ue between a negative and positivex3m zc5xc6y r.ssl: )jp8mkknu8;cs: m:yh4c charge along the line joining the two charges?

  Is it possible to have a z(7/lp zblx0dr; kk:dy ero electric field value between two positive charges along the line lkpzy;rd7: 0l(x/k db joining the two charges?

  Electric field lines near psitive point charqjdf j9kj1 s5/ges

  The electric field shown pgor cugs. 9f-4dfuh7e ;1pmo e8;8u3tr*udh

  Can electric field lines inters qjrhad4v+mq-i6zv19 k gt 0-eect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uni 1eql3t0* crpkmck/9ap : eyf/form electric field. Give a statement concernep9qt / 1k3*f:erymc/kl 0ac ping the electric field in the block's interior.

  If a solid metal sphere and a hollow metal spho 3t edrb71yx2e+kh-azl j,p 7ere of equal diameters are each given the same charge, the electric field (E) midway be+ja3ry ,polk 7x7e2 bd-zt1hetween the center and the surface is

  A cubic block of aluminum rests o1 *rq x9awjtjg7z:lm8n a wooden table in a region where a uniform electric field is rjlgjq8:z9* 17wmxta directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrgc h c2pgxqae w47c6xh+(ygrk v*;;x+ ium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is w ( u b1sbqb,it ok(wi3e.mw;)grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the kbm ubqww.t)siowb(,1 3i e ;(hollow sphere has

State three properties of conductors in static equilibriuqw3b ns1x,- gsm.

State Gauss's law.

  The charge carried by one electr u)1 *h,cvkyjuon 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 prothqpz( i1yxz .skq9u+9ck sde y6 pg)70ons than electrons does this piece q996e zh0c)y ds q (kzp.g+syk71ixpu of plastic have?

  What is the charge on 1 md p5 y9l,hi2x276mzequdajbd 0* 1jk gjgu.8 kg of protons?

  An atomic nucleus has a cha-s; q1nnac) 3uyx hwk0rge 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 of 2.0 ll-2)hst (dmkand -4.0 mC, respectively. What is the matlskmh2- l)(d gnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1t-iyp 9 /wn 3 p.zi7m*sqp-okw.0 N. What -pp7p q3sktwi*/wn -i mozy .9is the magnitude of the second charge?

  Two 1.0-C charges have a force between pt,qsq6*j-7vmmr k (cthem of 1.0 N. How far apart are they?

  The force between a 8lns4 crf8l 3h$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially;p rm q7woe-)wpxl5jr+ka c-( 2.0 cm apart, experience a 1.0-N force. If they are mem a5pc+ orjrx(w);l7qwk-p-oved 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 x-axisp3227 l:6v)vdgc 3 owhxhzxud . 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 which acts on v3xz76h :lx)hvc2pou d gd23 wthe charge at the origin?

  Three point charges are placed on th*ypojcknt j(9g5u:m 8 e 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 mar(m9gyn:ojc p*8tuj k5k. 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 positions: Q1 = 2.00 mC at 0ug b/z1jlj4k9r kvz6 x = 1.00 m; Q2 = 3 b9uvj0k z4rjl/16 zgk.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 charge?

  A point charge of +Q is placed at the center of b7eiw: d :+mppzx .ds;mo0 ocf:ll+7f a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that anmx +f0odwl.p zsd:+cfeo: l;7m:7pb i 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 = -1.0 5s28t7p rxrq(eu7qimnC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC m7rqx8r 72u s5ptie(q charge?

  Q1 = 6.0 nC is at (0.30 m, o/s l7m apc7m40); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the7o aclpm7/ 4sm direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC ar1roif 9d8nve37,-mdzi p/ klfe placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which3,1 /milr8-n9 ieofdz7vp d kf acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated byg/ b*x9g 2udvm 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force ax2u*/gm gbd9v cting on it would be zero?

  A +3.0-C charge is at the9jd o7g kjs0f6 origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zerds7 kfog 6j9j0o?

  Charge +2q is placed at tb,)kh zhe3:amdg7w i- he origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on ib)ah,z kdhg :3-7e mwit is zero?

  A copper penny has a mass o2:k9hah,b dg o im0:sxf 3.0 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 up2 vqpnji -.aduzf1 u7/ against the force of gravity by the attraction of a fixed proton someuaudf jnq.vz 7p/2i- 1 distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common poin pi9.k 6g(ns.gxs +owmt by nonconducting threads which are 30 cm long. Both are given identical charges, and the electg (s n+pwk.9g som.6ixrostatic 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 l(ay )ln1*5+str0x5k,eg . bmmxe wxga charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucbm1 5n)+g,m(llt k*xyg x a. 0reexw5sleus?

  What are the magnitude and direction of the electric field at a distadbffa l zy27edmk+w5cg9)i + d(jg7j:nce of 1.50 m from a 50.0-nC charge?5wyd7 c7)kgmjig(2:ja+ b9fld+ ez fd

  A 5.0-C charge is 10 m from a smacn kq)tw 9 o+(ivr,rb.jb6c1/xges/g ll test charge. What is the magnitude of the electric field at the location of the test charo(bv rr secx wnbg iq9+,)t/1kg.c /j6ge?

  A 5.0-C charge is 10 m from a smaa57rnxb w:og 3a;*d 9qp5mi lpll test charge. What is the direction of the electric fieldwagq7nld3p5:a95 obxm ri;*p?

  A 5.0-C charge is 10 m from a small test charge. What is the m b) y5z1ip6kwv6/ yhzgagnitude of the force experienced by a 1.0 nC charge placed at the location of the tyz)gyh pbzwv6/ 16ik 5est charge?

  Two point charges each have qo/h5 : :xid)qzeuhq. a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a pqxz/ d5o e:hquh:iq.)oint midway between the two charges?

  A 5.0-mC charge is placed at the 0hd1 :bk-nip 5xk ,.9zu56moh r+ucazb cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the e-duzroh :1chkb+ 6km5 .zubxni5 a,9plectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chargrn 5to3 d)k7dbe)mb q/o+jpn0 e is placed at the 50 cm mark. At what point on a line joining the two charges is the electde 0b)mkn opo)3+q jb /nd5t7rric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m.1upiz qc5bft/3j d q/+ What is the magnitude of the electric field at t cb/idz3/1 juft+qqp 5he point midway between them?

  Three 3.0 mC charges are0 kl./8 d1hoy1en kmvs at the three corners of a square of side 0.50 m. The last corner is occupiedk /ylomnh.1 0kesd18 v 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 place8 w5y+1osi 04ziqa 85sory dhpd 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); iss54o 1z a+w h8iy08d pqy5ro -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 placed in a uniform elecc 5w, fobyxqj0sr-i3;i d 2u6mtric field. What is the magnitude of this electric fibfxor,qicduw5 3mi - s0y2; j6eld?

  A particle with a charge of 4.0 mC hah 1x ,j qix *pub8fge9umxt68(s 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 pla(af xbcebke1 jk7 b2co11;qo4ced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to b1qkb fcaj(k7xeb1c4; e ob2o1e suspended?

  A foam ball of mass 0.150 g carries a vd 3k)/kc6ebls:ez i+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 of the electric fikz):vebdl 6 /+e3cks ield?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is txo8v, )rnkpo98v,udu8 -j ckq w6qs.vhe magnitude of the electric field 5.0 cm from the sphere's surfacjoc),sx v po-,698vu 8v8dk qqukrwn.e?

  A metal sphere of radius 2.0-w 5tjcw+8k d2vxvigg+n )1kz cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the cen )k- 1+ckt2wgwn8+zdgx vj5vi ter of the sphere?