State the law of conservation of e gwx)8/gld l*nlectric charge.

  Is it possible for two negative 6iiw0qvd r u5ya7vfb-e88wquk 97r.e charges to attract each other?

  Is it possible for a positive and a negative charge to attract each other?6fms;1 pr0:isc l8 avz

  A glass rod is rubbecdw, p --owd ufp,sq4)d with a piece of silk. During the process the glass rod acquires a poqwd wf,p-,cop 4 )dsu-sitive charge and the silk

  A proton carries a

  The model of the atom sho l ( ne8;rn:cv4vk0vqlws a

  A neutral atom always hk30kk3bcxwwh6 y a4,cas

  An atom has more electrons than proto i)bx +ia5b2qjns. The atom is

  Materials in which the electrons are bound vef;um (125r*lrkk opaya,::ap9 g nqaary tightly to the nuclei are referred to (ya akoam9ngr* l:a :1u2 aqrk;pp,f5as

  Materials in which the electrons are bound very loosely 6oy7e p3m*l 7 pj(igz)mzr*gqto the nuclei and can move about freely within the material are ref)* em lg3zrmjpzy76 *q(ipo7gerred to as

  A negatively charged rod is brouqhoi2k4jbq 8ee03 0gight near one end of an uncharged metal bar. The end of the metal bar farthest f3h48qoqj g bi2iee0 k0rom the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutr*f rn vi*398tit(kycral. They are placed nea(v*t3c*9kirti f y8rnr 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 ant 8vfq.( cz0urwbl9( vtdo (.m electroscope positively?

  An originally neutral electroscope is briefly touched with a posnnpz 40 xhb.: skp,ox2itively charged glass rod. The:.2 4znhxknp po0xs ,b electroscope

  An originally neutral electroscope is grounded brier4z q fagsri4*o7e-n7fly while a positively charged glass rod7 z sia4eg7ro-nq f4r* is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electrostp 29xws ixc3,cope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens tswc3 ,txip92 xo the leaves?

  A large negatively charged object is placed on an insulated table. A neutral mey1awh n, .-kiytallic 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 balln iwyh,a -k.1y 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 consc(b vssxt1g,c1 x/mcwpt62a+tant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Thi/3s) uu(iiba7fv 0z/ / jontce first charge is larger in magnitud/iu sb3nav0 f/)tu/( ojcizi 7e than the second charge.

  Sphere A carries a net charge and sph8)d-y fx osw)jm/b l,zere B is neutral. They are placed near each other on an insulated table. Which statement best describes thfd)m j8l)yzs w xbo-,/e electrostatic force between them?

  Two charged objects attract each other with hs/a4n5 ne)ufg l i:4j)emlx*a certain force. If the charges on both objects are doubled with no change in seun*5efnl4ah4) :i/s ) lgejmx paration, the force between them

  Two charges are separated by a distance d and xwe;efo( af 8x 3zo(ngp7 a1z9exert mutual attractive forces of F on each other. If the charges are s 7oaf;8z1ex(pe3 nx9w(zfoa geparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with am,;ag(svz ++3qlrnf i force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced(, rv+sai fm+n lg;z3q to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance oz14twbdrz ;u+x a.c b2f 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the41ad2 tz b+ cbu.z;rxw first electron?

  An electron and a proton are separated by a dista* ,c)mrn+cuv dnce of 1.0 m. What happens to the,)r*cndmvu+ c magnitude of the 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 xcz qnb,6z/3yv4ysr,*v ch r+/tqq)y1.0 m. What happens to the size of the force on thez ns*6)vcr q4yqbchxzy r/v/yq +3,t, 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.fg.nv ngooggd 88cs(p//lz+1 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 charp88ng(fvs/+ d1gogcg/o. nl zges 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 an equilateral trq0x35nl re4doiangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrost q5d0rn4xeol 3atic 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 novo ci19epe:k .t a vector?

  At twice the distance fvdgdvw:hq7 b .j0 0j0xrom a point charge, the strength of the electric field

  Is it possible to have a zero electric field valu/i ,:z8 j)l hg+eu4ojbnm vu(ce between a negative and positive charge along the line joining the two charges?ujou/:nl(c zh+i),mgjbe48 v

  Is it possible to hav+f6b blr711qnd v58h :gkm htve a zero electric field value between two positive charges along the line joiningv 6klb5nt+1g bhf7q8r 1vhm:d the two charges?

  Electric field lines near psitive point3fg)7 ce5r1aos bp.ed charges

  The electric field s xv1q-h+ (f 5cip kvk,w-aam4shown

  Can electric field lines intersegqcjm,r/p1ke.np f 2( ct in free space?

  A solid block of metal d *c-2+ 7wu3bj*qe+kc t6k*xbuzqvgf in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning gwc**q2ku3vdt - e 7zq+*cj kxuf6b+ bthe electric field in the block's interior.

  If a solid metal sphere and a hollow mzvu ;0-:5uw nwmvf iy1q wni79etal sphere of equal diameters are each given the same charge, the electric field (E) midway between the cen910 v:5 wv-i;m7fiyuw uqznwnter and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifjm ocs.d9,t/p orm electric field is directed straight upward. What can be said concerning the chargem9joctdp,s. / on the block's top surface?

  If a conductor is in electrosta ehnria u5e2 xfew4*b.990ksktic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that826ik-r7-(o obze y hjtgxz2r is grounded. As compared to the case without the hollow sphere, the electric field at a point ir8rho2 yj oe2g-bz6z -7(txk directly above the hollow sphere has

State three properties of conductors in staticb/f ytlb -1,s)a) avge equilibrium.

State Gauss's law.

  The charge carried byl; a axuhj*j* l*-ck:k one 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 protocj8gh ;*u 2iolns than electrons does th2hc g 8jl*iou;is piece of plastic have?

  What is the charge on 1 kz,gra3mkfwl0aibt, 3z . kh:-g of protons?

  An atomic nucleus has a charge of )e-93hjwqz yew v2;eed :ot*v br.8dv$+40e$. 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 -9.q s5 fbdkxm5j l)cimw .v:7p4.0 mC, respectively. What is the magnitude of thxc5 p.)b :sqwvm l7fm.jid9k5e electric force between them?

  A 1.0-C charge is 15 wv6 -b7cv/;eca u+* +h q+ jf1cmbsaarm from a second charge, and the force between them is 1.0 N.vvuf1m6 ras+-e c7aa*bc+ /wj;qh+bc What is the magnitude of the second charge?

  Two 1.0-C charges ha.(4* h5/pa)ish+etbx c ;qawjqv1 zbove a force between them of 1.0 N. How far apart are they?

  The force between a sifv zuxsdv p:4+*+u: $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apat81la1vh/vo g 9pdg; yrt, experience a 1.0-N force. If they are moved to a new sepy ha 819t1ogg/;lvdpv aration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first cha /lz)+jvnqetkd q87;q rge is at the origin, the second to te ;n )dtzq7q8+vq/jklhe 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 are placed on the x-axis.1ps bd31i b .tmq; loz2+f+uwm A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +41+.i1tq2bplo uf3 ;+zwmsdbm.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 ar;:0pcpqe xw ;syopc7 0 nuo1gf37r5 hhlf8(jge located at the 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. What is the magnit eh 1lf: ocy;q0psux;78f7(wph3po grgcn 0j5ude of the force on the 3.00-mC charge?

  A point charge of +Q is placeza 7purow,czj0t 4,jzh 55:f ad 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 the force that acts on the center charge if a third charge of -Q is placed at the lower-left cornej 4z: atrcw5,ujpho,fa0 57z zr?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3b epniy4 qwj3 k(-3yc; = 5.0 nC is at (0j4 qpy;(wbk-iy ce3n3, 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 nC27mxe zs7 ; 8lnl8ca cpnavo /or5d5k/ is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net f8xmpn d7/e ;vro5alc z 257lokca n8/sorce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verticx(:pz ts8; n0q wiwek4f6nh0res of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elect;0ieq nw4tx6f 8nr z:k pw(h0srostatic force which acts on any one of the charges?

  Consider point charges of +Q 4otev-q- g fk3and +4Q, which are separated by 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 acting on it would be z-kgtvofe4q3 -ero?

  A +3.0-C charge is at the origin and 6rjmibzaz/ ;*a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a thirdi;a*mz/jbz6 r charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed a9f4diyny/.y5+k aapnn3 8 vixt x = 2a. Where can a third positivy8xkan vinan3.4/dypf9yi 5 +e charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. v2aee bp/pvd:4ab 0e5A 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 fb:++h u /u *+8;srd0gzryoogp a xg5rrorce of gravity by the attraction of a fixed prg*h/8+r+gp bg oszudryo0+ra ;5r x:uoton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common p5dz6(zdo5ko jy ac rx,bf7/ ao3ayh.9oint by nonconducting threads which ady j9boo(6hrc/foz 3kd.57xa5,ay zare 30 cm long. Both are given identical 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. Wha.8wtlx5llb7zx ) 1csmx+ um;jt is the magnitude of the electric field at a distance of 1.0 m f.x lm5wsxz;1x8 +u ltj7c)lb mrom the nucleus?

  What are the magnitude and direction of the electric field at a di).1bk8cd dqc-hh xv7 e1stq:cstance of 1.50 m from a 50.0-nC ccscdt1 k817b vheq) qxc.h:-dharge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude oj( k-eobj-ia -g,k.renppzx:*b/ )chf the electric field at the location of the te()ph ei. jj-gpb n zreo:-kxab,-/k*cst charge?

  A 5.0-C charge is 10 m from a small test charge. What is theu,aq:v;d o zp+j4rz2h direction of the electric firo;jqh+zza 42,: upv deld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ofq06i0zzad nb:9 qev.c the force experienced b0zab 06: d.cv9qn iezqy 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 qrp3t5 v;:7wokb0 3igla vp0i are separated by a distance of 4.0 m.i7gl:p 0b tkor3p ;5w3qav0 iv What is the electric 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 -4.0 mC chargrj1 cn6dh9hn 5kkf2 (ke is placed at the 50 cm mark. Whkn 21k rn(6cdjh kh9f5at is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of afum moi/2.(nm3n,z yn meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two chifz(2m y ,nmmn n3o/u.arges is the electric field zero?

  Two point charges ofc zzql/te5s+ se*yfcn7 n.lt1-0 rm(d +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is t(*0el lsz1ztcqy-n/ d5+cr.mft ens 7he magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thr:ecnd 12.h; m8 wvdgcree 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 thcgwn12r.d 8 cem:dh; ve center of the square.

  Consider a square which is 1.0 m on a side o qti/7eu51qt. Charges are placed at the corners of the square as follows: 5qq ui71t/toe +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 is placi0(d i,xmli)ied in a uniform electric field. W i )i(mi,ildx0hat is the magnitude of this electric field?

  A particle with a charge of 4.kdf9rq d(w; + nwt-(ju0 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 mass 0.1p66nbvs0s u ny/wr8(h20 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ba8/0 s(s h6u6b rpnwvnyll for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plad:rvsi9hag u ,p15 t-xced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and di:xduth5g 1-rvs9,pairection of the electric field?

  A metal sphere of radius 10 cm carries a charge ioa.ivplq8vnzqw w,5 ,a1;2 wof +2.0 mC. What is the magnitude of the electric field 5.0 cm fromlwqwazi1a;vq2o 85 , wv,pn .i the sphere's surface?

  A metal sphere of ra ;fxo7 -de1rsycrl2j .swgze: ip281gdius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphereje d 1p2e w1c zsl:ro x;rgyg.i-f8s72?