State the law of conservation of elw t..*fj*5 hfn ev8dct4hzsye/0x2 qcectric charge.

  Is it possible for two negative charges to attract eat9vk);nntyv;j, rfc(e9 )w ntch other?

  Is it possible for a positive and a ne b.w 98xmjkfg(tf *h5dgative charge to attract each other?

  A glass rod is rubbed with a piece (jx+e 7n4 jiur9.9/ bn1i l :meffccomof silk. During the process the glass rod acquires a positive charge and the/cci4rnuxi.mle bj9m +fon efj9(7 :1 silk

  A proton carries a

  The model of the atom shows2m (fe4-wdnob a

  A neutral atom always y mq;ulnkrg ,:cua8zvb pr;)cil-7scj* .x. ,has

  An atom has more electrons than p:76sauk*j j eo viya)1rotons. The atom is

  Materials in which the electrons are bound very tightly to the nuc 7j8hvey2r)9/ nekhaa7o.qslvnnt 75 lei are referred n95)kqee/2ys7ja78olr7 ahv h n. n tvto as

  Materials in which the electrons are boa irmqa9 :*u+;6izno eund very loosely to the nuclei and can move about freely within the material are referred to as:n9; i+6emzruoi a qa*

  A negatively charged rod is brought near one end ocd/+* 5knjqpd +n+gknf an uncharged metal bar. The end of the metal bar farthest from +*+nkdn kpjqn+g/cd5 the charged rod will be charged

  Sphere A carries a net positive chj6he7 xl :vle;7g pvj:/qha0sarge, and sphere B is neutral. They are place;7ev6sjg:lq/alje7hxv0 h :p d 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 electcs.,k5n/ hi1 odfy1ewroscope positively?

  An originally neutral electroscope is br*v mw5f-g+t vbiefly touched with a positively charged glgtv f 5vw-+b*mass rod. The electroscope

  An originally neutral electroscope is groun .oqebtfi*, ; male8;7p3nz xyded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electrostq befxa3;7,lpymn; o*.eiz8cope

  A positive object touches ao73qdu *zzh7crev, ( a neutral electroscope, and the leaves separate. Then a negative object is brought near the electrosu* oeq ,dcva3h77rz(zcope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tabl 6csq+p0ti .fre. 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 ballc.if+ rp0s6 tq, 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 the Coulue:xv(ixr6w )omb constant $k$, which appears in Coulomb's law?

  Two charged objects are separi4j+-u malya* sl c+:u9lh5wd ated by a distance d. The first charge is larger in magnitu5dym*9uc +s al+u l4 ihl:wja-de than the second charge.

  Sphere A carries a net charge and sphere B is neutraeu(u6lpglnpu9p ; 2 btgdn9- +l. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betwe9 ne6plgb d u ut(u+g9p-;pnl2en them?

  Two charged objects attujfunz.1soe cqo4 d-pd; : 2h.ract each other with a certain force. If the charges on both objects are doubled with no change in separation, the forj co;qd:h. z4n 1dp.2- ufouesce between them

  Two charges are separated by a distance d and exe ilechqpea-/99l / v6nrt mutual attractive forces of F on each 6i/e9 al -hp9qv/ eclnother. If the charges 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 txxmq6)*3mo0ammc y/ khe force between them if one charge is doubled, the other charge is triple 6x0macqo m/my* xmk3)d, 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 proton are separated by a distance of 1.0 m. W :qgz6 lvhh t,pm*c+k7hat happens to the magnitude of the force on the proton if a second electron is placed next to the first elv+ck7 :gh,ht zl*6 qmpectron?

  An electron and a proton are separated by a dimhl*y g/-dz( fd -xzn3stance of 1.0 m. What happens to the mafh* d- d/3(zxlymz- nggnitude 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 ha 5afwx2 julkq19 ;rwsgwqcd ai;z+28- ppens to the size of the force on the pro1qwgfz cx5rsww2a ljkia8q 9 du+-2; ;ton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed+rfaa(t 8os6 u at the center 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, identical6faua(t8+ osr 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 equo23,titl,g e jilateral 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,iet olgt 2j3, 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 ;a ;xy pi+wvt1is not a vector?

  At twice the distance from a point charge, the strengthv/6eb b6;6q7vyqfx ahxy(hxhq4p8c 0 of the electric field

  Is it possible to have a zermmj r w),s/xwb*k2dxtjwy2* 9o electric field value between a negative and positive charge alonxm*2r9msw k jj*)t,bd/2 wxywg the line joining the two charges?

  Is it possible to have a zero electricrrylmkq 1f4* 7:ts2 uk field value between two positive charges a2fy sltrrk1q: 4umk*7 long the line joining the two charges?

  Electric field lines nearwz4i1u4ur. lyb16+wwnu b m:w psitive point charges

  The electric field shown :adc9 eo4p* hh

  Can electric field lines intelao+q28qi 5 wgrsect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a us; pwdm6 + -pferka1.iniform electric field. Give a statement concerning the electric field in the blm 61-fws;rap. ed+kip ock's interior.

  If a solid metal sphere and a hollow meta ep/b* nh4 vv brs:c:p4g0t;pkl sphere of equal diameters are each given the same charge, the electric tr* bk0n/h4g vv:s p;ebcpp:4field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in +(oofe+ft i*ip k-5ot a region where a uniform electric field is directed straight upward. What can be o*i- oftkito5+f(p +esaid concerning the charge on the block's top surface?

  If a conductor is in electrok aks1sp*;6smstatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere tha3 me7lbvz+vm 0t is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abb0 v3 +ze7vmmlove the hollow sphere has

State three properties of conduc 11alv/db:yvm tors in static equilibrium.

State Gauss's law.

  The charge carried by one ezb7eoy r cb.:,lectron 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 +nu * 1kj1h6+purp:sedbf3 (lu2.00 mC. How many more protons than electrons does this piece of plastic have 6:(slk*+f1uuhjup be ndr31p?

  What is the charge on 1 kg-gf+;m5 1mtecjp:)j n pbzt 8p of protons?

  An atomic nucleus has a charge of)ad,+3dm ;w wh-gx zvr $+40e$. 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(,d)ma;tvni-a4v omsdct . u9 of 2.0 and -4.0 mC, respective ,cio4d; svtduan9( mavmt.)-ly. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 *uz w 3 bds9)nox(r0wkdf 5yk5m from a second charge, and the force between them is 1.0 N. What is t3dkw5yf 0(n)zr9* osbxkw u5dhe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 9kswgu7 dkmv6bbts p:sgd33( xo;0j -N. How far apart are they?

  The force between a gfkee)d iruf6z7li8, ii) l:3$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, ee4qa6any2, kf e .,vcrxperience a 1.0-N force. If they are moved to a new separateq,e na.6y 24rfva, kcion of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-ax6yqivts (/v 1 ioll16yis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the6 6t1qv/lyis1yv(iol 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges aqmt* + uot5rf:re 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 cmm*: +roqf tu5t mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the followin4;ul g-lxc8ats/o ab- g 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. o au- 4l-bscg/8lax; t 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, and a secy-znk)k0nas ;, (oim iond point charge of -Q is placed at the upper-left corne()si ;m0,-akyi nn kozr. 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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0v.feko:5 bg t2, 0.10 m); Q3 = 5.0 nC is at (0, 0). Whagob2t: vk5f. et 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 nC is at (0, 0.10 m); Q3 = 5.0 nCxeahrln 7vqu:7,8;q l is at (0, 0). What is the direction of the net force on the 5.0 nC charge? 8qrlh7lv:ueq 7;x,na

  Three identical charges of 3.0 mC are placei0dgq: n1zg f1c;. 7/ dybpu ;xeq i*e4*rbqxid at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of th1x b14r .*/fig i7eqpcibund;e*d:g 0; x qqyze charges?

  Consider point charge2fu,kipbc( *gs of +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be po g* f(2b,upickssible 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 chargkntvj7 -7su4 7*tcmltl8fg a5(rs5cge is at x = 4.0 m. Where on t(u gmtr f5al8tt7 *7j4ngs lc7v5-sckhe x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pk390g( rvxq5 xx xwo-slaced at x = 2a. Where can v0r93(xo sk xxgwxq -5a third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of q3xr1yy cu0 y/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 dti k4q67end6 t-u 8vxxu )j,nfd6 gh7gravity by the attraction of a fixed proton some distance above it. How far aghqx k4n itu7d6f7jtvdex) 6n8u-d6,bove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting ttywn(5km n- b7hreads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion fort-n ymn(wk b57ces 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 o:o p xu/wois c,gi6xv*d2 3hp-27hw rvf +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nuc or hc2ig- /w 63*wix vpvs,dx:oh27puleus?

  What are the magnitude and direction of the electric y: y1:uoly fdp)lg1*av*u 2bqfield at a distance of 1.50 m from a 50.0-nC y a*fblyyu*v21)poq::dl g1ucharge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitu4js t8-e. 7f u(+7vmtjkwgq bade of the elef7t87j wuke (.-jsag+ bvtq m4ctric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is tmb2(a1n4st b0i(s(1e al/b ooohc(y0 g 4 jjlbhe direction of the electric f (0(i( egsh14tbajc2m jbaos (oo4 bnbyl/l10ield?

  A 5.0-C charge is 10 m from a sc+ :wlk-9q)k ck wh)xumall test charge. What is the magnitude of the force experienced hqkl w kkccx-9+)w :u)by 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 are separate8f2obf0zmv y+jkl;a7o bovn,zch 9s;/ i-f3z d by a distance of 4.0 z7iojf-bn;lvoa,2 m+csf z 0 vfo8; k/by3z9hm. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed (dx+- j6j b8h uxd:kryat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm marj:6 jhdrdu +byxk (8x-k?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 39/x/ /c1b/euipyru tjmsyo 9mC charge is placed at the 50 cm mark. At w9b 1utp/icoym93sj / /yuxr/ehat point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and2f4kdwwt z vo32q0bf8qm 2by. x = 0.20 m. What is the magnitude of the electric field at the point midway between2 vozbq202 dm3kftbw8.y w q4f them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 mpw fobiw+8b.rn8 p3 26iyrt) c. The last corner i63oiftybp8r r2pn) +b .w8wcis occupied by a -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. Charges ag qdab.s)go0cmz 5 1,v:pkll1 re 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). v1 zl01:ka5dg.,csblp) og m q What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5qu y9pc+aj gl9,5z jm3y said40he2m2 .0 mC when it is placed in a uniform electric9 ajcmd4qg5y+a0ish ,pjy zl2 9 um23e field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 ut nvmo/ b: a28kq,(:w xc,gqrmC 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 0.120 g is plv2nkl j2vf asby*l// 4aced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?* kl 4fnb2lay2vv/j/ s

  A foam ball of mass 0.150 g carries a chl81j xh k66iqgtixsuso.p c5c vam79+9 b/ e0carge 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 direction of tug bvt59 6 7h6x sscea8o 9c j1qxm.0ipc+/klihe electric field?

  A metal sphere of radir;7tckl 8jf 8ius 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5; il 87k8rfctj.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 e2rvh(2j 5z, p:g e9jntjkoa,ylectric field 6.n9h5 ot(2j 2eg:yj, rk,jva zp0 cm from the center of the sphere?