State the law of conserva(p5 -.x4lf* dlc0gx */le)gvnjbm bfgtion of electric charge.

  Is it possible for two negative charges to anhhit0x-a ,v -t.nez*ttract each other?

  Is it possible for a positive and a negative charge to attract each otho,l: dgj;(ouql2s(dy er?

  A glass rod is rubbed with a piece of sil lkv7c9uwo2x dm,lu0.k. During the process the glass rod acquireuxko9uc0vw l2,lm .7ds a positive charge and the silk

  A proton carries a

  The model of the atom show 90f(kz/yvim 52 awhaanmq1 x*fydq)0s a

  A neutral atom always-7: z cgch 29*jv)ilzjbgk-qn has

  An atom has more electrons than protons. The atom(q; 3vc 0m6nbaecaw 3gfjwk52 is

  Materials in which the electrj-(uin j.y8st ons are bound very tightly to the nuclei are referred s(j 8iun.-jy tto as

  Materials in which the electr2k-dxcn6y sqd u5ooa k2zl 0v- ;tu;4xons are bound very loosely to the nuclei and can move about freely within the ma-kd 4q6t ;k0 avz -n u2xocxo5sd;y2ulterial are referred to as

  A negatively charged rod is brought near one a-o x9 rfdhd 0f*ybxyoajk5d.8.1 1z hend of an uncharged metal bar. The end of the metal bar farthest from the charged rod will ky1df* f ayh-1jo..a0d x895b dh zrxobe charged

  Sphere A carries a net gik8 rlo1z.4b wi k9bb 9i2xx6f9:nlipositive 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 g9k wnblib1x r 48i6xbizl99kf.i go:2rounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pnw f.dy 9pn(x7bfkc0oc g/ :i0ositively?

  An originally neutral electroscope is briefly touched with a positiveltp 71l c :g.ly-cp9qzay charged glass rod .9:c llzp7ga-p qty1c. The electroscope

  An originally neutral e2ghtd dll: ul(cxn.57lectroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the.ul nghtd2x5c(: 7 ldl electroscope

  A positive object touches a neutral electroscope, and the bi /i5,t(huvj8wg7eo leaves separate. Then a negative object is brough j bu8veti,5/h gow7(it near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is pkw3nme /e 84drlaced 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 n m4kn/d3 8ewreegative 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 constan38obn*g ggsym 6w8a 4qt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ibipm. r5ag 04ds larger ini0rmdg. a5pb4 magnitude than the second charge.

  Sphere A carries a net charge anye 1p;j ewecz0,v2qwao dy 398d sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betweene cydo1qz0932e8,v ;jw py eaw them?

  Two charged objects attract each other with a certain /qx ;tg(z5swa force. If the charges on both objects are doubled with no change in separation, t;q5/s g w(xztahe force between them

  Two charges are separated by a distance d and exert mutual attractive fi; p a)-m0u f087zyhh ifckh4dorces of F on each other. If the c k 00)4fa8iyif;huhmc-phd7 zharges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to tbisadj.d8h)w *- ny6jp gg*u0he force between them if one charge is doubled, the other charge is tripled, and the separation distance between the6g j. u0i)yj -p8shgn *bdd*awir centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distanc;yne:1 p)l2blk(bmuq 8p0 gvze of 1.0 m. What happens to the magnitude of the force on the proton if a secozm1vg:ne q; yl0lbpb) (k 8pu2nd electron is placed next to the first electron?

  An electron and a proton are se56 lx zz7r+yn3on r8rhddrsvn5 0t ,8tparated by a distance of 1.0 m. What happens to the magnitude of th+nn5zr 3xt8r , l807dvsrrdny5ztoh6e 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 1.0 m. Whl60xlo ,hpf x/at happens to the size of the force on the proton if the electron is moved 0.50 m closerlx lxf ho/p0,6 to the proton?

  A point charge of +Q is placed at the ce+.deih+d m yv-nter 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 center. Now, identical charges of -Q are placed at the other three corners of the square.iedy +v+.h dm- 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 placedv:u+lozx h cg0nyy))ka5 y63x at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, ux 3 zxockyv)) ly:5nh6gay+0an 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 vertices?

  Which of the following is not2o ir mbovlsbc4 )4-p0qg,jd* a vector?

  At twice the distance from a po2xnglw,oak xo.-1unsu)(;o mint charge, the strength of the electric field

  Is it possible to have a zero electric field value between a nen efqm9s 3:s;mgative and positive charge along the line joiss;mm:f n9e3q ning the two charges?

  Is it possible to ha8o9wz+-zl u xdve a zero electric field value between two positive charges along the line jowloz9- u+8x dzining the two charges?

  Electric field lines near psitive; vaj08e9pn 4dqukwq; point charges

  The electric field shodct 16)iws/ja wn

  Can electric field lines intersect in free spacaqn e8tmz59kx: j;5 h:heq cz*e?

  A solid block of metal6/xs dp(v7te:7vq pjl in electrostatic equilibrium is placed in a uniform electrij7lsdx qp:t6e7/p(v v c field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equadtei838 yd t x39+wkvcl diameters are each given the s3d8i8tdw+cy9 ek3v xtame charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum ) /kh*+izenp zs,v +bgrests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerningg+zk+n )zp,vb/*hsei the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chakbm7x9 -z6qlr rge

  A positive point charge is enclosed in a hollow metallic sp ae m 3o05d5tuewfg,6yhere that is grounded. As compared to the case without the hollow sphere, the electric field at a point die 6deam,0o53gu tyw5frectly above the hollow sphere has

State three properties of con(sbrv5h6 t3cm m ,s3eaductors in static equilibrium.

State Gauss's law.

  The charge carried by one electrohg9b4hb;x l u-n 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 + fnz5.cew/p6 p 8xw-*j zbsby*2.00 mC. How many more protons than electrons does this piece of plastic ha* c bs j.*bzwy5w zn-/pxpef68ve?

  What is the charge on 1 kg ox*52 1 :cd*ua hlypy6mf ;gmmkf protons?

  An atomic nucleus has a chargefxwayipct-06xj*+: g4dti .p 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 and -f++g3tl*ekh uc or6/p4.0 mC, respectively. What is the magnitude of the electric force betweer6 3+c/ outgl*+pfhken them?

  A 1.0-C charge is 15dzl*p l0g7x:ww ex6x6 m from a second charge, and the force between them is 1.0 N. What is the magnitude of the second*6lxp6 : w7lxdezg 0wx charge?

  Two 1.0-C charges have a force between them of k.d 7+hz x9 0j1;humys6rodxl 1.0 N. How far apart are they?

  The force between a ;uh*fg h2 *xtx5ublk1$30 \; mC$ 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. h90g:;w,qfg nza )fk tIf they are moved to a new separation of 8.0 cm, what is the electricq ;gwf9f ,g0:tnz)kah force between them?

  Three identical point charges of 2j/rn,),q;u+p bfkth6c dk0lj.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 magnitude and direction of the electrostatic force which actshl kjfb/,0)tqu+p krc6j n; ,d on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is pla,c:) z pjzaue9mf0 b-lced at the origin, -2.0 m C to the right fme ,9u:) acp0jz-bzlat x = 50 cm, and +4.0 mC 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 located azf9mt zr6q0q5 fek; 1pt the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 1 pfm rzt9fzkeqq;560 = 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 charge?

  A point charge of +Q is placed at t.pbtz;x0ish f0 sa40 phe center of a square, and a second point charge of -Q is placed at the upper-left corner. It .x0pp4z;st 0ashf bi 0is 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 = -1.0 nC is at (0, 0-jify) , 06o 7qvmaw)p7sxd wt.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude,w-7 vxfj6omipqd)7t0 y )sw a 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 8kvgpju49ah 05d(8rd( tbed j); Q3 = 5.0 nC is at (0, 0)8brkd5ah udd9j((8j vt0g 4 ep. What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilaecbbjg ,k9y3q gt+um0q/+0ndteral triangle which measures 30 cn0j9u3 bc, dqmgtk/g++eqyb0 m 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. At whb.h b ,avbmoq+z s51o2at point, on a line between the twb b 2ao1sh,5 .vmqzob+o 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.okyo d2 efou43lm,9 l8 Where on the x-axis can a third charge be pll,8eooody94 k2 u mf3laced so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is sv3s /5m z52u)oaljxk placed at x = 2a. Where can a third positive charge +q be placed so that 3a/5zuosvsmj kx2) 5l the force on it is zero?

  A copper penny has a mass dmoc; j:5 zgh-of 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 up against the force of gravity by the attba w/jduy9;s+ 9j+ sgqraction of a fixed proton some distd9+qs /+;9sauby jwg jance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduct12ww,kv7 6 3;lckithargv 0tb ing threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between thgk37c,vwv2h1 bik;tr0l 6wat e threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge or7o; /ankr,zi f +40e. What is the magnitude of the electric fiek /o,zrar;i 7nld at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the j.pck /p7(urhelectric field at a distance of 1.50 m from a 50.0-nC./7j(uhkc p rp charge?

  A 5.0-C charge is 10 m from a small test v/w l h629euoacharge. What is the magnitude of the electric field at the location of the test chal6ahu 9e /2wovrge?

  A 5.0-C charge is 10 m from a small test charge. Whaad k75n3x7cs) dd )u yzbnz)c39 zm3gut is the direction of the electricz xs7u) dya9c7z )3u d3ncgdz3mbk5)n field?

  A 5.0-C charge is 10 m from a small test chargk48+:mqc a kz., xcrbme. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test cha8, m:ck bakm+ rzxc.4qrge?

  Two point charges each have a value of 3.0 C and are separated by a distanctaoon+0( zog(ykk ;h5 e of 4.0 m. What is the electric h(k(z 0+;5t ogyknooafield 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 -4.0 mC charg 7iv9mbgy) jtxygg,m/u8n /q5jx h7o *e is placed at the 50 cm mark. What is the electric field at the 30 cm ma9 ty v bu*mj5/8jiqo7gmy) 7g/,xghxnrk?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 m1oxothomn,b(ci );o2 C charge is placed at the 50 cm mark. At what point on a line joinin ) oxonhmb o;1t,2ico(g the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are plach:6p 1 2p6olo(2s4 1jeyzj4cahjv a loed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between thev6l a 4loo2 epo1ahc:j j(1h2syjz6p4m?

  Three 3.0 mC charges arb+e:v /* o7cqboyeqv 4e at the three corners of a square of side 0.50 m. The last corner is occupied by /:+by*7qec o bq vev4oa -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. Chargespdc *0)hpl+ j gcr6z)z are placed 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); -3.0 mC at (0, 1). 6 0c+)jgp)*zlz rh dpc 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 e vh ybmc:*iojm3k-d ,1lectric field. ,*1 :jiody-k mvhcm3b What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has awm6l*y, d n)hu+ nmgnyq(au79 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 6000 N/C vk sr)yb o)136ik5gtj pointing downward. What charge must be placed on the ball for it to be suspj) kko6y)i1sb trg3v5 ended?

  A foam ball of mass 0.150 g carries a charge 4 l*0iyyt28m1zwboio of -2.00 nC. The ball is placed inside a unifor4l to821io bwmiyy *z0m electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What ,a y5mth) ncn 02n2hgbis the magnitude of the electran yb,n hc25t20hgnm)ic 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 is the eleckc57z:z,bwzpfq2 :vi t km /0ltric field 6.0 cm from the center of tbl5zzpi: q:v k0/2f wk,c7tmzhe sphere?