State the law of conservation of electric chahiqwo: fq v k7*ca83+x8q z/rrrge.

  Is it possible for two n (wth9 -wug0jxegative charges to attract each other?

  Is it possible for a positive and a negative charge to attrac/6cdhk3atf z:lzu*5cf *xo v17zdknu4 ih0w( t each other?

  A glass rod is rubbed with a piece of silk. bdard7vt3:j 2oich/knnzj,ezer a * +:6j3-t During the process the glass rod acquires a positive charge and the s3+*nbza n kz rc jr7, jdi hj:/ade3ov:tt2e6-ilk

  A proton carries a

  The model of the ato5j5h;z ugmj;lj2keli; l9n ah ;/ye( pm shows a

  A neutral atom always 3 jl4s i*)abishas

  An atom has more ele *a erz,wl,d 4*wregebk (2m2gank3ymf51w2 gctrons than protons. The atom is

  Materials in which the elc657zmf l c,j,) jstkljz,v.kectrons are bound very tightly to the nuclei are referred to a vm,tcf kjl7 zskz,).j6j5l, cs

  Materials in which the elesql3(by v jwh+-;/tv lctrons are bound very loosely to the nuclei and can move about freely within the material are referredv- l y+3ljqh/(t;v swb to as

  A negatively charged rod is brought near one end of an uncharged metal bar. :zz,x l5w xjd5The end of the metal bar farthest from the charged rox 5z djzx,:w5ld will be charged

  Sphere A carries a net positive charge, and sphere B is neutral.-faat(u flr(/c*ejx: They are placed near each other on an insulated table. Sphere B is briefly touchejl:*cur-/ xf e f(a(tad with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge 5v-k gmw.8/ pix+f g-qli2e flan electroscope positively?

  An originally neutral electroscope is briefly touched with a positively char38qit afr 6.+0xsrrlm, lhj) gged glass rod. The elecs.r 3il,g6 rm0qh8x+a)rt j fltroscope

  An originally neutral electroscope is x17yjezxra; h 6a h,*ogrounded briefly while a positively charged jy,ze *xa; a6r hx1o7hglass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Th*5wgf(na-9 j7vb he ooen a negative object is bro 7oawe(n* of5bvjhg-9ught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutraic.3 uyj.ll8 m( vr2cyk(:x b.ysokd+l metallic ball rolls s( d+ i2xry3u: cvjmlc...b sl k(yyo8ktraight 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 final charge on each ball?

  Charge is

  What are the units of x2a5r4;vz z5 ieib4 aqthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first.tp m)y:k w(( qtek f21v6j-fu5azqub charge is larger in magnifm:j eqwk)ku 1pfz at(v6u2.ty b5q(-tude than the second charge.

  Sphere A carries a net charge andaibc3yrms(n 4pk (0 b( sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between th (nip4 (b3b(a0s ckymrem?

  Two charged objects attract each other ah (-kio x8fwm z4jj9oh(.2h4 dc,dcdwith a certain force. If the charges on both objects are doubled with nwidz4,ahkhf(4 (o 2jdx m-8o.cj 9hdco change in separation, the force between them

  Two charges are separated by a distb.z( d )v4phncance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance v(b)z .4cdn hpof d/3, what are the new mutual forces?

  Two charged objects attract each other w/yng -ud2)ysdith a 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 centersd2y-s/u dgy )n is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a (gbt . f*zl0cxt/,czn distance of 1.0 m. What happens to the magnitudel.z(g /,ztf*c 0xctnb of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated byhop0.g- s.l.8pe+wy tay,jhk a distance of 1.0 m. What happens to the magnilp.hjwp..tys-e8 g k+y0ha, otude 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 1.0 m. What happensvj 1:kdetufc fap 0dr):s(o-7m w;3 pm to the size of the force on the proton if the electron ) : ;u3-:tdo 1rcsjfek(m7wp 0fpvdma is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. We.l -fpfnntw- md d(- k,y6cc(oh86jp hen a second point charge of -Q is placed at one of the square's corners, ipkj6w- f- m(n.edyc ol6( -pc 8,tnfdht 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. 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 eq : qo kf9jmnd,43m-yxcuilateral 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 m yn49jc,:-xdm q 3fkothe center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following huyfsw)3y5f 4is not a vector?

  At twice the distance from a poinj)t; m53e6qc -pnjwgs t charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and poszma7/5(,vgpf..0 ;zmrr y jga hi8 aubitive charge along the line jojzv ;0a .5fuapz/ ma ih bymgg8(.r7r,ining the two charges?

  Is it possible to have a zero electric field value between two positive charges abswi4g*9,e7r ,;w+z hjtc;ktzkf t 8along the lw ,z i;ktc+rtzh47a;g,8 9 tb* jwfeksine joining the two charges?

  Electric field lines near psitivec;1 aug og i*4:nf.j dmnrlh4. point charges

  The electric field shf 1 ywh xv38igxabb58-own

  Can electric field lines intersect iu32(sffnq :*/-rhuttyo7 nb ac/5kc vn free space?

  A solid block of metal in electrostatic equilibriuf 14,ci (ivj ysl,jbphyi u61,m is placed in a uniform electric field. Give a statement concerning the electric field in the block's ini, 4fhjs6iujl ,1 1y,p vcyb(iterior.

  If a solid metal sphere and a ho ky8xcu 2n-s;0z vc2xyllow metal sphere of equal diameters are each given the same charge, the electric field (;x2-sx0vyn 8c2kcy zuE) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a un7lu2re u w9aw*iform electric field is directed straight upward. Whatlr *wu92ea wu7 can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near a:3 atj c8qrig.n electric charge

  A positive point charge is enclosed in a hollow mrpj43au b um,vg*d,+( ppc 2 am,zr;syetallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at,r3gu mz *a;bpayv s rdpcm,4j(,u +p2 a point directly above the hollow sphere has

State three properties of conductors in statica pc1xhp 1a/n oy7.5ij equilibrium.

State Gauss's law.

  The charge carried by one electrlj5hmm487ttej1 o5w s on 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. Ho-.tld+5nqvuoawws .y 16i/ vzw many more protons than electrons.t1 n+svqdoviwyw 6.-/uazl5 does this piece of plastic have?

  What is the charge on 1 kg xxz spfm ;.h62of protons?

  An atomic nucleus has a char zicg 5w gn97zhb5y2e9ge 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 -4.0 mCnzh.ck b9z;8 f1q;7v.xi ogga, respectively. What is 1k8; zzinbx9 g vg7f o.q;ac.hthe magnitude of the electric force between them?

  A 1.0-C charge is 15 m +foly.ha -xl r uw7v-oj*lm3)ykg g0- from a second charge, and the force between them is 1.0 N. What is the magfmgxl7jkl +a)v3 -ylrg*w.-oohu-y0nitude of the second charge?

  Two 1.0-C charges have a force betwe3 iemjeu,6 st,en them of 1.0 N. How far apart are they?

  The force between a fp dd;/2d45kr i)reqpr x5 6w+4h ohqa$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exp qhxlqhns. hqn93x9h+u..1 gaerience a 1.0-N force. If they are moved to a q ns. .a3hu9q1x+hxh9nh gq.lnew separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on)dt f+s *ll(yn the x-axis. The first charge is at the origin, d(l*)+f lnts ythe 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 the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed at qm1)rhy(k) lxa v 31jvthe or(ar 1x)vk lv31j h)yqmigin, -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 origin?

  Three point charges are ry:6+aeu 2itb0y zk/olocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at0r6 :2ut+ako b/eyizy 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 centery99dsm gu3+s n+wbzvs3k,6np 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 -Qn +9 +zssk sy396pdmnbgv,3uw is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5w 8xr dw/bgp/j6fg):dcmhz 5(.0 nC is at (0, 0). What is the magnitude of the net force on rd (xw fj/gd56 :/hz8pcwbg)mthe 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 = 5.0 nCrszye;8yh a)1 is at (0, sy;)1yah8e rz0). 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 -lb)rx;r db, z-bl*juvertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force whi- brlu )-brx;zdl *b,jch acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At;mcn 9kvvw5s7u7f sc * what point, on a line between the two charges, would it be possible to place a charge of -Q such that the ele us7n5mv7kvf 9cs;cw*ctrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is aex2c8-v8h i ypt x = 4.0 m. Where on the x-axis can a third charge be placed so the net force oey8ix2p8h-v c n it is zero?

  Charge +2q is placed at the origin and charms: 8s gi sx*439rcihtge -q is placed at x = 2a. Where can a third positi8* gcsm3 x9stshi4r: ive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A totalevev0fp h)b(( 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 grav(zq c;d yw-o/2f+p5k vdypuxcb 1bh.)9ane8uity by the attraction of a fixed prot9u+c(b p adxbo hzduyk 1 qpn8ve.)cf;w5/-y 2on some distance above it. How far above the electron is the proton?

  Two 0.20-g metal sph1 i01ptpfqdjnz*xslth/; e g. i96a.qeres are hung from a common point by nonconducting threads which are 30 cm long. Both are givntqt e9digz1f1lpj*/ ;h.p6 is. a0xqen 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 charg ;9dk;p :wevlfe of +40e. What is the magnitude of the electric field at a distld w9fpk;;v :eance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.5 rmnsnt5*6y. :ml6dj f0 m from a 50.0-fmty *dsn l6njm6.5r:nC charge?

  A 5.0-C charge is 10 m from a small test f,e uu4( /mm.n,f dxfacharge. What is the magnitude of the electric field at the location of thf ef mmu,(nu,d.a fx/4e test charge?

  A 5.0-C charge is 10 m from a small test charge. Whatklmlpo9.h a) i:0hku6 is the direction of the electric hh0l)ump. 6:9ai lokkfield?

  A 5.0-C charge is 10 m from a smacfgrqd8:hh * qjl,,1fe1s jn4ll test charge. What is the magnitude of the forcq sl fjfhdc4enq,g11:8,rj * he experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each had*lx3v1pw/f:oc2w :cp xyku7ve a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the tu:co:1lw / f*pxp3xc d7kyw2vwo charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter 75pweaau(t- f/ix dqi 7ih( .pstick and a -4.0 mC charge is placed at the 50 cm mark. hp(iwf id a57 /-p.axtui(e7q What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the do p)ljxo+h 8u3cn53i ja* ,m: amk,mv0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50io,xm8 j:uvo3a * pj )3cnmkm+, hd5al cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and l1w)5 e3fag n;c56re thkwc:w-7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between the)5a6 n cw35gkftwe1re ;wchl:m?

  Three 3.0 mC charges are at the three vxv 96ye aa3i;)f bje7corners 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 center of the sqa 3avjef 96)b yxi7v;euare.

  Consider a square which is 1.0 m on a side. Charges are -y83y6ah5y * ixtw6x fgje* +fybf;siplaced at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC awx ffjgyeh fxs3 *i5ty6aybi68 +*- y;t (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 ihz tpiz7hpth82p,7 ,8lozbi 2+b nou-s placed in a uniform electric field. What is the magnitude of this electric fip7-8pl7 zozibbh2 po,i t82+thhunz, eld?

  A particle with a charge of 4.0 mC has a masse)6mhsw 7tf/b 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 ;vt; 4 2x)woysgmq+5snq5p2 0yyf ci hn;jo)qof 6000 N/C pointing downward. syj;ct)y x4nfy i; 0pwnq q h)o ;+qmovg552s2What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2 tle(xw ,;i19l8rk vxs.00 nC. The ball is placed insi1k ve8lx;(9t xlrwi,sde a uniform 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 carrir wf5:+fb 5a90 cusomces a charge of +2.0 mC. What is the magnitude of the electric fiel w:msfu+a 0cofb9c5r 5d 5.0 cm from the sphere's surface?

  A metal sphere of raou7 v*b2hulwr c (m8724q1r e ukaye(adius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm l8 *eu7(1bh2 eau7c2yvkmw 4(uro aqrfrom the center of the sphere?