State the law of conservation ox:w-5c* 6u pq 1t.brkyo rb6ylf electric charge.

  Is it possible for two negative charges to attract each othvo *rk4*uu-kym2ch ylc 30(*uqb q3xoer?

  Is it possible for a positive and a negative charge to attract eacspl / i8bc3n*yh other?

  A glass rod is rubbed with a piece of silk. During the process 4dcrui 3dx5+t 3k0txy8,uk lj the glass rod acquires a posr3c+0 t ld 854,3xtix jduuykkitive charge and the silk

  A proton carries a

  The model of the atowad / iqlvfqo(96.7 tarw14mnm shows a

  A neutral atom always 53tt+py3dk kf *p2yhnz/ f lc.has

  An atom has more electrons than protons. The atomp+ecdmzxj xj81k+7 ,m is

  Materials in which the electrons are bound very tightly pd1 2mict*ig2to the nuclei are referri c2mt1g2ip d*ed to as

  Materials in which the electrons are bound very loosely to the nuclei and can miq/ r3i)( hfo *+hd7ubm xkp )q6i1dmqove about freely within the material rm/h3qq+)hq) mi( f7 k6o1d*xid pbuiare referred to as

  A negatively charged rod is brought near one end of an uulto7k u s08-uncharged metal bar. The end of the metal bar farthest from the charged rod will beu 8s7-uok0ult charged

  Sphere A carries a net positive charge, and sphere B is neutral. Thevy3,6*b hk b3uzknde +q;oca9y are placed near each other on an insulated table. Sphere B is briefly touched qzvh b back9e +u,on* yk363d;with a wire that is grounded. Which statement is correct?

  How can a negatively chargddg; + :*l)slng8y vdped rod charge an electroscope positively?

  An originally neutral electroscope is.z/3/xh uibph briefly touched with a positively charged glass phhbx 3z/u./i rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively c n vli ysno fy4e6;x*i3-w+fa u;f*ew*harged glass rod is held near it. efy6yulsi**afx4 e-;i;3 *v fownw+ nAfter the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and t2u9k h/ ukm n+qozvy8jpsnge;13ip38he leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happenojyuzhg q+8v3 8um1 nke/ ipk;s3pn92 s to the leaves?

  A large negatively chara:( 9,v rcnjzlj:phu + hhq:)zged object is placed 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 zja)hr h:(nhj q::+v cp,9lzufirst 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 th+3tlu28;oj am/vyr sxe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger yq g+suqi5v8jx6o6ks1l/0r x in magnitude than th66riq so+qs0/1 85 yvuxxj klge second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placeyyao 67 );6(kdz :vurlvaj60esnqcf) d near each other on an insulated table. Which st6evaqa )7y6 sclj dy6); 0o:zrf(vnkuatement best describes the electrostatic force between them?

  Two charged objects ax fj v3id.)f -:il53pej,ftp rttract each other with a certain force. If the charges on both ,fj 3:rif35ixtjvl.de)pp- fobjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutur-a(4 g.o 3 b8opxmwmxal attractive forces of F on each other. If the chapgm.xb 43w mxo-a8r(orges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other w:po2 ogkx0h)si6*z .kf lvd8 hith a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the sehs6oh pofz82)kvg :. dxil*0k paration distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated +yi*3k*z6w tw(kx rjlby a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second eleciy jxt+z6 k3r(*kw*wltron is placed next to the first electron?

  An electron and a proton are separated by a distance2fhq) tm j(w+,0 zotl 8hz32hkyc)cpg of 1.0 m. What happens to the magnitude o f wmhzg tj8h0 tozhyl(cp)2k,3q c)2+f the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by ar+; 747kvovtt+m j qr*a3huio1 dg+ud distance of 1.0 m. What happens to the size of theim7r ;7+dh4vd*+tkt+oq3ujrvu go 1 a 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 second pomo5strc.(l6- om uf;qint charge of -Q is placed at one of the square's corners, it is observed that an electrostatlmfc(rmuo.-s5 q6 ;otic 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 centr1(zxv i, my mfiaheld+/p0 un3v2 )bu:oid 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 ch(zmh y,lmuufdvvn:)/ b3ea10xp i+2i arge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vec gdxcor ehb;me:ud;)n*a)t 61tor?

  At twice the distance avkd( ) qy,lfsg*3zf akb;q.5 from a point charge, the strength of the electric field

  Is it possible to have a zero electrice:an:oxr .x p0hmd +gf97cq1u field value between a negative and positivexqchr1e.p7om: xng ad:f90u + charge along the line joining the two charges?

  Is it possible to have a zero electric field value b1x:8q0npjuwe k4i k:t etween two positive charges along the line joining the tqkwiuk 4n1t 8: xjp:e0wo charges?

  Electric field lines near psit5a*fliziw0wve5lxhi , 7s 3z ,ive point charges

  The electric field shr.(9j7 l iiql/ akz)deown

  Can electric field lines intersect in free8h h oba v5ogws8(b3k* space?

  A solid block of metal in electrostatic equilibrium is placed in hlqxt (+gt(3ln1v+rb a uniform electric field. Give a statement concerning the l l3( g++t(1hnvt xqrbelectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphvzh))k.-a7a oudrlc 3ai)flk ,+jko8ere of equal diameters are each given the same charge, the electric field (E) midway between the center and tha3 kkoj 7f)) hllv uzr8)k-ic+.aaod,e surface is

  A cubic block of aluminum rests on am)j4zf ucg9+q apm-6 ce da+,j wooden table in a region where a uniform electric field is directed straight upward. What can be said c a++4p)eda9 cqmc6,f jjzmug-oncerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nih nfcv,;+ol- ear an electric charge

  A positive point charge is enclosed in a hollow metal2 gdrqjamg k( phnh*e+7q -3,nwz+rr0lic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a p+aqm2z+gp- q(hwhe7jgn0rd3rn*, rk oint directly above the hollow sphere has

State three properties of conductors in staticcs ;tvzfy,71 j equilibrium.

State Gauss's law.

  The charge carried by one electron i09h-spes l6uc,ze-vt: ye -m rs $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge ofkmj8v3xqk4 d:3; ai7/fnuflg +2.00 mC. How many more protons than electrons does ;ffv k:4j3a gn/7 k8lxu3mqdithis piece of plastic have?

  What is the charge on 1jwxt9)y rth.a. 6 gn6:wgx*7 jmiy/oh kg of protons?

  An atomic nucleus has ak dx+e 5th0,ej charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated b. rm0qapzafn1go(no) v- 4)w xy 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively.q-vg(rz)0a n1) a.mnoxo4 fpw What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a sqzfia on6 o8 )kf7;)qiecond charge, and the force between them is 1.0 N. What is the magnitude of the seoia) k8 ifq;76)z nqfocond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How fxx(t,bwe ,roj32a9n ear apart are they?

  The force between a 9m ad:it: y we3.)k1u zwgecf,$30 \; mC$ 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 fo-zd6p d75p1t8wmbcdk rce. If they are moved to a new sepwdp dk-c68175d bztm paration of 8.0 cm, what is the electric force between them?

  Three identical point chargesbpygs46xces85f ,vcqn766 k r of 2.0 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 fgy 7,s4cp6q sv6nbr56 8xkce 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-axisko ; j9/y;pfdli5ef .k. 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 y5e;k/k.op9f d; lf ijthe charge at the origin?

  Three point charges are located at oa)tl *:u8epnepaex 68es,1i the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3 x1ea)aepl o6:sne88ipt ,e*u.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 iseomatj4p+hur g f;6+ + placed 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 electrostat4gmf;+e rojt u+ha6p+ic 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 m24xs (te kzhw)ps7cs7a0j4m n , 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net forap 7js(k2x h)zswn4mcs7t4 0e ce 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)zu02nzx.y /p1h. jiqk; Q3 = 5.0 nC is at (0, 0). What is the 2yz/.i .k p q0hunxzj1direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verticub/ 4 mr/v7jxxa63npn kmwe31es of an equilateral trianglebjmkun3wpme7anx / v /4316 xr 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 +Q and +4Q, which are separated by 3.0 m. wb4baxo9456jf k+ksz+6 ys dk At what point, on a line between the two charges, would it be possible to place a charge of -Q s+ fdws bk6xzs+59k ka6o4 by4juch 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 a + plu/znath.+t x = 4.0 m. Where on the x-axis can a third chargtzl+ ./np+h aue be placed so the net force on it is zero?

  Charge +2q is placedbzks.tbra* ,*ql9m *;hupsw7pq5t a 0 at the origin and charge -q is placed at x = 2a. Where can a third positi* slt ,q 0; mtsbakw**75hz9aupr q.pbve charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 ggc ..c ;8 zv7lyvaxu5o. 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 thcmcabao xd) m;yi32.r -;e7-*tic j bre force of gravity by the attraction of a fixed proton some distance above it. How far above rda ta-.ime)b;cx i-r2o* 73cjbmcy; the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncond0+c5xtix gnl: ucting threads which are 30 cm long. Both are givxgxn0i:tl+c5 en 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. What is the guh6f+*qq *e.oqfb9z zke7il/ 2s3rymagnitude of the electric field at a distance o b f97u*fo36qqk.2l+ez regiqyzsh* /f 1.0 m from the nucleus?

  What are the magnitude and direction of the eh.o7ansg -a wv0gk,f 3gp;n+ llectric field at a distance of 1.50 m from a 50.0-nC cha-swa 0; langh3 v+ ogn,.f7pgkrge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thj0iw 9;kf z5q- ley*tne electric field at the location of the test tnf5 yq9*k-ej0zw; l icharge?

  A 5.0-C charge is 10 m from a small test mp,5khsv/m*b charge. What is the direction of the electri /skh p5,bmv*mc field?

  A 5.0-C charge is 10 m from a small t d82 otvnk2hy6est charge. What is the magnitude of the force experienced b6d 82v tyhokn2y 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 arevw:ln(n8,e5/de 3 nuxb :o,yvzqy2zr separated by a distance of 4.0 m. What is the electric fieldw v:o,:2dq(uzn enryly/e5 ,b 3nzxv8 at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mek b6m3- b3yzbg 8aa1rfter stick and a -4.0 mC charge is p3g b 6my13zrfb8b ka-alaced at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed ati6lvsq8:* hvguu6/yf)cl r-w9 myt5t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electricg-/:lmiv5 swhly t*utr6vqf8 u )y69c field zero?

  Two point charges of +3.0 mC all:pw a1ag c9r; p7y5h)idk4 and -7.0 mC are placed at x = 0 and x = 0.20 m. What is thhkp1wra7 ypgcl5d ;a )94a li:e magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square o,ddf2ci0 6 :.pzpzac81utremf side 0.50 m. The last cor2pr0a.:ecz1f8ctmzd6 p d,iuner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which58g6t ejo2 dji is 1.0 m on a side. Charges are placed at the corners of the squ8jj2 d6ot5i egare 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 the magnitude of the electric field at the square's center?

  A force of 10 N acts q ,14pgvrv87:nlr rlk/v8vcr on a charge of 5.0 mC when it is placed in a uniform electric field. p741vr,kr8rl /8 cvvl: gnqrvWhat is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass o668 unq qabgjy .u3jwr0n1h-jf $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is placed in anv0n2t5goi 9z v electric field of 6000 N/C pointing don259g0 tvoizvwnward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.0u 9eqp u;yp06uhm stdn2jiyz zk 30+-50 nC. The ball is placed insi nsi 0 6 um3pph-jytdqz +9y;k0ze52uude 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 carries a charge of +2.0 mC. What is the magnit+wgwn8c+f;g)w6 qw2 ttogf :y ;dffd1ug6dy df2qw:; ww)1otn ;t ++ffcfg8w gde of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries av*3 hpg-4rmmr lft8 c(w7:pedpnt30 d charge of 3.0 mC. What is the electric field 6.0 cm from tm4 t(g330r 7*fcnp v:pet- rdmlw hp8dhe center of the sphere?