State the law of conservation of electric chargfnr75h oh 5n ( wn*/ids:pxyl7e.

  Is it possible for two negativ m c lrc-md)+(+x2l7nl p+( wjcesiwt2 40zxrpe charges to attract each other?

  Is it possible for a positipshhgs/. s-9 u:lfj7)l. gnw ove and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the 2 ,sxmj+k*wgk glass rod acq*k,2 xjk wmgs+uires a positive charge and the silk

  A proton carries a

  The model of the atozsg 6 2c,exdk-m shows a

  A neutral atom alwaysysyis-wgq z0 ,.fsl) /0wn ib3 has

  An atom has more electrons than protons. The atom i6xnx1b;skrru 23) *r yv/whj vs

  Materials in which the electrons are bound very tighx) fhi-4 bnu(vtly to the nuclei are referred-nxub i(fh4)v to as

  Materials in which the electrons are bound very loosely to the nuclei and hksq9gf61m kp6k 1rpa. pb:z,b7h9gx can move about freely withi76 sh. kb,91r zbhgqak 6pxp9f:1k gpmn the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar4.r ,n8ban1 g3kzsmrg. The end of the metal b. mgrr,4sn 3bzgn8k1aar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is nevg)a6qff-v s5xm i72putral. They are placed near each other on a i7q2f5sp) - fvvg6mxan 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 electroscope positi a*v9:p* cmrkdvely?

  An originally neutral electroscope ish3* cy7ubfqtz 6abz -.)4/tuln sp5z a briefly touched with a positively charged glass rod.c 6b-f7* a3h ntuz/zs. tubq)zyl4p 5a The electroscope

  An originally neutral electroscope is groucp se*t ua+r4 )d(jv)cxlhu;. nded briefly while a positively charged glass roac4cht; +*)s(ru. pl)u dx vjed is held near it. After the glass rod is removed, the electroscope

  A positive object touches a nesqxrno/cao4lo i ;0z 8 ,ujhf ug55:x6utral electroscope, and the leaves separate. Then a neg8 q: fxi 0s/g,c olj6xrouhz o55u4a;native object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged objec7psnpxfkle14v ; i 7ymv7y; 9jt 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 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 mx7;; 7yn lyvfej1s7 p4vi9kpball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulombopnf 8cm7jw4rpqjo hy8 kq7lr. v,/68 constant $k$, which appears in Coulomb's law?

  Two charged objects are separatem ;v 8f 5x+;amkd5kg-xld c3wld by a distance d. The first charge is larger in magnitude than the cag+lv 8d;3 fxkl; 5d-wmkxm5second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed neart9xi3k/aw(g.j6 9nizh gl/w t each other on an insulated table. Which statement best describ/wwti6xt9 gz 9i.l hnjga k/(3es the electrostatic force between them?

  Two charged objects attract each other with a cervhfi:t1(eb0r8:s nio tain force. If the charges on both objects are doubled with no change in separation, the force biehfb 0:(8v onit1rs: etween them

  Two charges are separated by a distance d anx1sw5zx*.0zsshr w x2 d exert mutual attractive forces of F on each other. If the charges are separate0rw*z h.wxxzs xss2 51d by a distance of d/3, what are the new mutual forces?

  Two charged objects attrl3sce ( grg7 ub6l6z3 (+xhrqlact each other with 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 centers is reduced to one-fourth its original value? The force i(lzcsr6 6hg+b7 q r(lelg 3u3xs now equal to

  An electron and a proton are separated by a distanz zh*mwbftk 1 /v.j4b*ce of 1.0 m. What happens to the magnitude of th/bbm fw*hjz.*4z 1tvke 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 of 1.0 m. What happenszn yp s)zq+-o;:rj rm) to thqz;n)rz-s )m: j+rop ye 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 1.0 m.n pw jl+)fe vc84stftfs7-o2t;ma q 1) What happens to the size of the force on the proton if the electron is moved 0.50 m closer om8s f ;lewc ttstf)vp2fn)+qj 1a4-7to the proton?

  A point charge of +Q is placed at the center of a square. we8j+issha, 1 jfk/)c 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 charges wc81ijsj+ ,hs/a )k feof -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 centroin93 m8axl 1uu7-w hswgd 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 charge due to a third charge of +Q h3usnl1a wwmu9g 7 -x8placed at one of the other vertices?

  Which of the following is not a qztgrd/ 6o 0rqf +;w 1h-f.6bzmro4rqvector?

  At twice the distance from a point charge, the strength of the el91w(cyyrkv kvv +d17zzt oh*yd.5wo2uwx 1f ;ectric field

  Is it possible to have a zero electric field value between ad,(wvx/jzc.*pzq,f9 h q xc-f 7zlrt/ negative and positive cha j 9w7,zx.*( ,-frtzz qdclvpq/x hcf/rge along the line joining the two charges?

  Is it possible to have a zero electric field valueez/pg1 s2g.g i/*yf*0zcovf k between two positive charges along the line joining the two cha* 0v ffs ec /kz2*1g.gpoyig/zrges?

  Electric field lines near psitiv-./e t,qh .rzj *.y5e jbsbwzie point charges

  The electric field show5if f22mkylm3 n

  Can electric field lines intersect in fren y0 jpy6o48see space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform eled:)xeziq- i6mlx,lr9( wid z - 5xqn2sctric field. Give a statemllqzde,:5iisq-6i r x x92xn- ()d mwzent concerning the electric field in the block's interior.

  If a solid metal spheree fp:b8zt764 7 wqcqhv and a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center ancz7b7 htevf6wq8qp 4 :d the surface is

  A cubic block of aluminum rests on a wooden table in a region where a daj0y4ynea)p- - qg7x0wu a i9uniform electric field is directed straight upward. What can be said concerninw-9da -yge )7uqna04jypix a0g the charge on the block's top surface?

  If a conductor is in electro:;6 xv,kwslxbldk::5wbpr *p static equilibrium near an electric charge

  A positive point charge is enclosed in a hollow me99oku6s/yyj q5iw7 m-q h 5 8oky:xceitallic sphere that is grounded.9q/u:c8q yikwj9x ky s5-5im76 ehoyo As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in so(7bluj 9su bwiv(6qa:-v et3tatic equilibrium.

State Gauss's law.

  The charge carried by one electrfvgd3)(zya q vfx/,a /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. How many more protons than eybo(dy 6 03gyl2dd5hklectrons does this piece of plastic have6d(y5dy2b dy o0hgk3l ?

  What is the charge on 1 kg of protons?ub dha3d5 n3f3th0. d5vb -txv

  An atomic nucleus has a chargeahted eiy0 .o:r t:wx-,q1c7m 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 o7*6rhuilzvb 3f 2.0 and -4.0 mC, respectively. What is zh3vi *6b7lurthe magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force bhs:p94 l1)( med rukr8y0lqtdetween them is 1.0 N. lude l)m :ptkq(1 0r4rd sh89yWhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of : kzago7zv)f01.0 N. How far apart are they?

  The force between a 5vvojar8g*t 3riy. y8$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exuhqzqbkjr3 hd3 5q h ih782a;o/kqz( ,perience a 1.0-N force. If they areiq52k 3( / zqhubk8 oqzhq a3jr;7d,hh moved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placedte-hw ll8 *qw5l8kiw3b7x kx0 on the x-axis. The first charge is at the origin, the second to the right at x = h*b3w0 57w 8lx wk itql-8xlke50 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.gj+li4 )c a/cwent6t , 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 magnitudee la6c gj4,n)wic/+tt and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are locatq+(zg/:9j38b apamby8 k h ebwed 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 magnitude of the force on the 3.00-mC c b3w/ (j8:h9ebyaa + gqmz8bkpharge?

  A point charge of +Q is placed at the center of a squa (4w6,.f9dgocm bq ginm23v z0o2medlre, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electros co.f2( g4mw0mm b oev d,n9g6zl23idqtatic 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 (0, 0.10 m); Q3 = 5.0 p0*,v3us y t *o)f+)akfjja0t3tmo h inC is at (0, 0). What is the magnitude of the npv*0tk, j+afiuf 0smh j)t33o y)*aotet force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.qhnpw)y sl+ zw/09b n*30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge+h/qws9 )n0n* wzyplb?

  Three identical charges of 3.0 mC are placed at the vertices ym3 ejey*jpe;f:.o +h xu7* jeof an equilateral triangle which measures 30 cm on a side. What is the magnitu j*h; 3oxepfy*ee7jym:+ euj. de of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and):- xq5e3lr4 rbinqz d +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 txqr be:zq3)nd 5 ilr-4hat the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the v -0wp kf.* dc0err3cxosb18morigin and a +9.0-C charge is at x = 4.0 m. Where on ths00ce.8x3rcmb1ro- kp vdf w*e x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at wu4 etk w+thscz d 0)ix:36rj7the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be7 0:6 )xuc3tt+zwewdjsrhik 4 placed so that the force on it is zero?

  A copper penny has a mass ol49*udby-runh(dr4i n p69 c,yh vyjaf 38k,c f 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 gravity by thdceuhu84665 p / bsaege attraction of a fixed proton sou6cb/hdee 6 5pa8s4gu me distance above it. How far above the electron is the proton?

  Two 0.20-g metal spherestl2sgc xd6s* bf*h8f. are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angl2*x6lsh8*gffb.c d ste 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 magnitude of the electricdr z/f4 gfzzq -qnia 3//ss9s8 field-9nzqzdafg fq /iz3rs48 /s/s at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field atew76 h )mhstb0 a distance of 1.50 m from a 50.0-nh tw bm7)0s6heC charge?

  A 5.0-C charge is 10 m from a small test charge. f eshq wn/p:9; What is the magnitude of the electric field at the locatin wqhe;f9s /:pon of the test charge?

  A 5.0-C charge is 10 m from a small test chaz)k 4 /tsgm:zzrge. What is the direction of the ez szg4t/mzk):lectric field?

  A 5.0-C charge is 10 m from a small tb bhwis,( 4q ze/fo.5iest charge. What is the magnitude of the force experienced by a 1.0 nC charge b e/4obq(.ih 5 fi,wszplaced at the location of the test charge?

  Two point charges each have a value of 3.0 C z;68,as 8p;m q pgsnkw/) osvbp,isi-and are separated by a distance of 4.0 m8; b,ss;zv/ nia6sp8 pgskoq )ipmw -,. 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 zzet17wc4: h37ql3bwiyhl c + -4.0 mC charge is plac+iycle7cl :wh4 3t1w 7hzbq 3zed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placedztpp k(k -29kp0huf- bdl98bj at the 0 cm mark of a meter stick and a -4.0 mC charge 2tp9-f8p ldk jb(ph0- kkzu9 bis placed at the 50 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 -7.0 mC ar g6b4a7oprrcj/, 0x fbe placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway betwerbbxf7 o ajgp06,/ rc4en them?

  Three 3.0 mC charges are at the three corners(/ 4h)d22(n w9n m voermkjqer of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field atm(9 heodr 4jq n ve)(2nm/2rkw the center of the square.

  Consider a square which jgp5 9k+0xg w5z79sage9 qcpnis 1.0 m 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, j 995 qgx9e7g+0awczkp5 gpn s1); +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 placed in a uniform elewj-*l r ; (tf59rqrit35at xlbctric field. What is the magnitude of this electric field?tr l-;5tax*r (bfq lwjrt3 i95

  A particle with a charge2mv(rz as9;x6u l 2yrm of 4.0 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 0.120 g is plav vlk4*xz - vkxu;qg i93syp;k*: rh1aced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to v:3i a- sy1gp*kvu 9x kz;4qr; lvxh*kbe suspended?

  A foam ball of mass 0.1p*39s) qhu il4h7h 8zzeow f+v50 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is su pl94us q38)ih*evf +h zw7ohzspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of ral-x qwf0n60v cdius 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 6fcvlqx0- w0 ncm from the sphere's surface?

  A metal sphere of rad zj tsipi4l,qit ) 8gg6/-r2djius 2.0 cm carries a charge of 3.0 mC. What is the electric fl4zt6sgjpr,i8 d q/2 -iji)tgield 6.0 cm from the center of the sphere?