State the law of conser q3j bvmge4365jyfl 0u- 1-1yyuekhfc vation of electric charge.

  Is it possible for two negative charges toyl -wz (; nyusk1zm;8g attract each other?

  Is it possible for a positive and a negative charge to attract each vmmwo-a+5 b1 q4xpxnko)rp(/ other?

  A glass rod is rubbed with a piece of silk. During the process trg)l;qm 3hr9i he glass rod acquires a mq; g3lr hr)9ipositive charge and the silk

  A proton carries a

  The model of the atom sha1q( jxh1ub/*5hxl-1 xxsgnoows a

  A neutral atom always hm 83l3rl 4qz nbmj:bf-as

  An atom has more electrons thajcgxye66gw5m; mp f(8 ca72 jqn protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are 1shnlij+hz4g1+k q+ qs4zi,jreferr+ iqghi+sjj1,z slknq+1 4 hz4ed to as

  Materials in which the electrons are bound very lyb+ia:0 a9q:hs 09 vvw bshj5toosely to the nuclei and can move a 9 tqh9a5vhvis0ab yb+j0:sw :bout freely within the material are referred to as

  A negatively charged rod is m.;ty(.np )xee+o e etbrought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged roy). e; eoxtemt(n. +epd will be charged

  Sphere A carries a net positive charge, and sphere B is neutral.iyq/+o d*p:8 cfmpy :x They are placed8 *p:y cdo:px q/i+fym near each 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 electroscgce5nscs* e* (ope positively?

  An originally neutral electroscope is briefly touched with a ;x j)xc+f9i 8 am1w-e4wb:zmo qspt l;positively charged glass rod. The electsq4eafx:mwpt 1imxz) +j bl8o w-;c ;9roscope

  An originally neutral electroscope is grounded brq*njwio23k,f0)* zi7 vy tkmqm( 1j iriefly while a positively charged glass rod is held near it. 3it qiq*jkikm*7v,f 0no rw y(1z2)mj After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the l 6b6oz.yg4 efgeaves separate. Then a negative object is brought near the electroscope, but does not touch.y g4zgf6o6eb it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. 3rvv /-iod2rtA 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 orv3r-2i tv /dball, 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 Coulu u+ p vi7h)m2od2jb*lpc3gu,omb constant $k$, which appears in Coulomb's law?

  Two charged objects are se6n0 4azrv /9xbs)wpleg96:p0rumvc lparated by a distance d. The first charge is larger in mp sv euml6w9pgr4l0anz6r)v/c 0:bx9 agnitude than the second charge.

  Sphere A carries a net charge and spjf jv6 g l(rf/.qfmo7zk 2z--bhere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between tqkv m-(f-.7rzb26jz logj/ f fhem?

  Two charged objects attract each other with a certain force. If the charg*/cbr k(f:zsf es on both objects are doubled with no change in sescz*f :b(k fr/paration, the force between them

  Two charges are separated by a distance d and exertduh0w*u967t bjo)b p q9w i7hd mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, bdh w uhu)d 7tj7oq0w*9bi9 p6what are the new mutual forces?

  Two charged objects attract each other with a force F ;j(dx evb+ k4q7z(qh.to +nslmu p6:l. What happens to the force between them if one charge is doubled, the other charxp uvo z(: jthq6n.7bs+md;(4ql+elkge 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 protk+ 8c hvjxdw8vy8qugo* e1,x-on are separated by a distance of 1.0 m. What happens to the magnitude of th+xv gy8 j,uw *odkc18vq8- hxee force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance:jcq 1:b d0pvu of 1.0 m. What happens to the magnitude of the force on the first electron if a1:u j0dpqbc :v second electron is placed next to the proton?

  An electron and a proton are separated by a dista ntxdxsz2b-qe.n 4gn +(nll5/j n/v (vnce of 1.0 m. What happens to the size of the force on the proton if the electron is mte4xnnngnnxlv z(5/s+q jl/ b( 2- dv.oved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When jke0.itlam.ucy 7)a* 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. ietmk7 ca*y l.ju0)a 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 centroid of a *l(6tlcs** :g ouknfmn 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*ogl:(n*k * mlc t6ufs at one of the other vertices?

  Which of the following is noc6/.4/ea)xh ohp5 r: gfbhd n9blx b-ht a vector?

  At twice the distance from a point charge, the strength of the electripzjie h w-;q6gskwz: 8:e,-h n-bj8u kc field

  Is it possible to have af8s/)ig ;uox0r +mppv zero electric field value between a negative and positive charge along the line joining thep )0x+;vsf8g m/irop u two charges?

  Is it possible to have a zero electric field value betwzc0svjtno(jw/ 3xu:rv, n5b ,-bp(sq een two positive charges along the line joini,,pj qtb3 -z5 bo0xnjurv w(c/(vs:snng the two charges?

  Electric field lines near psitive point chz qp b)ge714y-vs+qex c-4obwarges

  The electric field sm 3(serfn/6ow7am8u ohown

  Can electric field lines intersect in free sn4yl2 fdzzpm i 5.l0q h3+t4cjpace?

  A solid block of metal in electrostatic equilibrium is placed in a unifom*)agra ; tz3arm electric field. Give a statement concerning theramz *gaa)3; t electric field in the block's interior.

  If a solid metal sphere and a hollow4zfeh qy0zb72*kg; m j qz;e)1.ootak metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center ) eah gt0*b z.qm7kq;yz jok12e;o4f zand the surface is

  A cubic block of aluminum rests on a wooden table in a region where a d xfacmvf0i07p u9 n95paw*b0uniform electric field is directiwnf5b *mp7c0xvafupd 9 a00 9ed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in elek7ld )up q75zxa np3-fctrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphereab , qb))w,o fr4-jdm3cfuuw; that is grounded. As compared to the case without the), a b ,um3w4rd-b ;fcq)wjfuo hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertieseik9:4sm ra d6 of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one e(dw e+z6awtb :*hmi1olectron 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 hh ghx;j0qxrpu67y sk+ 84(nk was a net charge of +2.00 mC. How many more protons than electrons( g0pn4 + u;8rjxhwykksh67q x does this piece of plastic have?

  What is the charge on 1 kg of proton lx ,.ord7by;gs?

  An atomic nucleus has a 3m:)wf t -7q1uudxfh .qyu)sb b ,-dm:nzo+xncharge 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 valuesa tjaw5qn; y8lhe99v-.cum c6 of 2.0 and -4.0 mC, respectively. What is tvu 5j yn8;qeach 9-6w.alm9cthe magnitude of the electric force between them?

  A 1.0-C charge is 15 ecxu8jfczk8 9w.v /)s m from a second charge, and the force between them is 1.0 N. What is the magnitude of the second ch/89ucjf.xvk8 wec) sz arge?

  Two 1.0-C charges have a force b .*yd z mtfj9ambdhjm.+)6lme3; fm(petween them of 1.0 N. How far apart are they?

  The force between a o)gnxh5) dhjopb 4c b.n(b /((jqc2vq$30 \; mC$ 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 ; qbcwy/+r7/cv(qjn od.s+hi -N force. If they are moved to a new sec/id+/o sby rw7c nq;j(v+hq .paration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-agc,ufq4q u3 ;lxis. The first charge is at the origin, the second to tf q3uul;g4c,q he 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 ark:f. s9odx+a(b p i;vre placed on the 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 direction of the electrostatic force which acts on the charge at the origoxbfp:r.d(;+ i v9 sakin?

  Three point charges are located at the o +mg*wsf+jkrka 7ss,jmt5,.following positions: 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 ,s,jm7kt aj+gw rmks5+s .of*. 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, andmpti kgxz(:o5o+y 4mamfp .23 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. mo52gx at(:. 3my4ippfk+mzo 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.) +g jm82dpeaecvb-4+7)h tt ippwq-v30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude )p-etqj -ga ch+pvi8b)4pt7 me w2+dvof the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC q(cv;6f;zq ctju)+j;gla ra: is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force o)( rv6qg;j;zfc;juc t:+ qaal n the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilatera) 7 *o-zutvaki6;f wxfl triang tv6iok7f aw fx-)u;*zle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Qgxc4xcm j,9a49: .ou-qzhjg e and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possxa:c eu9- h44mo,.j j9zqcxggible 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. Whr.:a4+ xkv jthere on the x-axis can a third charge be placed so the net force on it is ztv+.hx4r ak: jero?

  Charge +2q is placed at the origin and charge -q is placed atl4oui 6 g.nd-b x = 2a. Where can -dngbi ul6.o4 a third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of s6m*c4eog4. wg:cw iu3.0 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 attraction of .ko5q 2aslj9 ;war yq/d +6z.jc3 fenwa fixed proton some distance above it. How far 6efd93q5oz/caq j+2wynlas .j.r w; k above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point bgtzm3 1egv*qld/-yw9 ie3i7iy nonconducting threads which are 30 cm long. Both are given idev/m7wieig - z9li 1 3ye3*dtqgntical 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 of +40e. Wnavw da7m7p .2hat is the magnitude of the electric field dpwma7 27a. vnat a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electkn jj s hl 9xkrp92*qyx1*nzo4tsi.0, ric field at a distance of 1.50 m from a 50.0-nri t1xsk9,oqpx nynj z l2k094.h*s *jC charge?

  A 5.0-C charge is 10 mjhfy337qw.nwv, ysq z svg;4( from a small test charge. What is the magnitude of the electric field a(sz3;n yq wh4w fv3jvqs7y g,.t the location of the test charge?

  A 5.0-C charge is 10 f/y4 s((xwwe; q:b gza8-ze)bi3r bmt m from a small test charge. What is the direction of the ea wq(m xr wb)ges-zzy4e3i;t( /b:bf8lectric field?

  A 5.0-C charge is 10 m from a small test charge. What qz yacuq.,e9fyx :*x,rba(fx.c dp6 3 is the magnitude of the force experienced by a 1.0 nC char r6xcu3pq(*bf,c xyaa:d,yxe fz.q9 .ge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are so /5tqxq*n3vv eparated by a distance of 4.0 m. What is the electric field at a point midway betqq* v5x 3tvno/ween the two charges?

  A 5.0-mC charge is place 87hxa4atbcrkv7zw./d at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at t.w/ar8tza7h 4 v7c kxbhe 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4py xsdr+jtyi 3l:y/34.0 mC charge is placed at the 50 cm mark. At what point on a line joining the twoxy:+trp33 /yy4sildj charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x =4cx i+e( g31qdo0 q1t wu;gkis 0.20 m. What is the magni i k+wd q41gsx1toi3ug (0ecq;tude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three co8q,c b t4b t6vzi6 o8vsn*r0ssrners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electti8r ,*sqb806cv4 v6sb otnsz ric field at the center of the square.

  Consider a square which is 1.0 mo c05c* mmohqjb5oqyxj; b8;nj v,o80 on a side. Charges 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). What is t;*5m ovq oc;nobqjym ,jjxc oh5880 0bhe magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 r 45 vfiful2py,qv k,0mC when it is placed in a uniform electric field. What ip0lkr 5q,yfvv fi4, 2us the magnitude of this electric field?

  A particle with a charge of 4.0 mztxvh6f ;9x)kv3 ,t fcC 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 0.1w ntd (/- :.*er-rcsffy8iw*osweh c9 20 g is placed in an electric field of 6000 N/C pointing downward. Whad fn y(ocftw/ ih 9*8w*rsrc.--:eeswt charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 us9 m03dj9 szz0 z;tivg carries a 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 d0sdvutz 9 9zm j3siz;0irection of the electric field?

  A metal sphere of radius 10 cm carries a charge o1;jumv 5q0z6snx1t qx0vej:q f +2.0 mC. What is the magnitude of the electricxxj q:0u;nvs6z1mq 1tqje v50 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 wr.r10. 6onyjw ./r5l9yq grwgt+fw telectric field 6.0 cm from the yjgwn o / 9t.5+wlt rgw.f. 6w0r1rrqycenter of the sphere?