State the law of conservation of13w,v l gfk9te electric charge.

  Is it possible for two negative charges to 3q,h ye3zu v:fattract each other?

  Is it possible for a positive and a negative charge to a+.0u pcah4ect ,u 7zzsttract each other?

  A glass rod is rubbed with a piece of silk. During the 2 yb,wpo ya7:eprocess the glass rod acquires a posypby e7a2 ,wo:itive charge and the silk

  A proton carries a

  The model of the atom c:w7n* fg aiu,./kskris;ei5shows a

  A neutral atom alwayuw ke b8fh70nzl 7ajj.jc7/;cs has

  An atom has more electrons than proton m6krllzktbk6/5mnne2kn .gp 9uy-(: s. The atom is

  Materials in which the electrons are bound very tightly 5yzuv2u ,iz *b: tx7k;+nilh hto the nuclei are referred +z;bui2h57v* hxy ,nu:ikz lt to as

  Materials in which the electrons are bound very loosely to the nuclei and can9u xqvc6):wc 9gvnbf m:1 xvj6 move about freely within the material are 6g 9:mcv ubf 1w nvvjx9:)xqc6referred to as

  A negatively charged rod i.ax5,ku2- r sbobo*tos brought near one end of an uncharged metal bar. The end of the met5k boauoo *,2xb-str .al bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They arj awdoq. 02ubm :-0bh.hkrqr/ uc(+p he placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement apu 0r0h w-.h2db(komcbh/.rq+ju q :is correct?

  How can a negatively charged rod charge an electroscope positivelmlx(s*q oq0w h(m)mg2y?

  An originally neutral electroscope is tmlk90ns 9i ofw)n:5r briefly touched with a positively charged glass rod. The enomnw9)rs509:lk f i tlectroscope

  An originally neutral electroscope is groundedr 9ft+tz , k-z:t+wbbx briefly while a positively charged glass rod is held near it. After the g9x :kf+t,tbztz r+bw -lass rod is removed, the electroscope

  A positive object touches a neutral electrosc3ln /ahp(7isg ope, and the leaves separate. Then a negative object ishi(7p gl n/as3 brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. Ab 1x+gnnf /7rd5+hq y:a(f qyq 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 ball touch the negative object. What is the final y :1gh (/++qq5n7bry nf xfdaqcharge on each ball?

  Charge is

  What are the units of the Couy b)gmn* lb6p2-5ih*fdyf)idnzk;.i lomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d:850kzwkh5zpb+ dozqc w oa 43. The first charge is larger in magnitude twp5q5z4wo:zc0oh8d 3 kzk+abhan the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed ni(x+ *vk 5bax;cdxncqmo(6 vxpwf609ear each other on an inpxx (9domavc+f(x kqvxb65i 0;w *cn6sulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If pga53 z19imdguljp4:4q o w7f* x5t* g bsb/qethe charges on both objects are douleptg7* q4/u3g a14 osqz*j bdpmw 5ig5fx9b:bled with no change in separation, the force between them

  Two charges are separated by a distance d and eg v(oik0rx 6w5,k/*awfugc,hxert mutual attractive forces of F on each other. If the charges are separated by a distance og5a*wo,hi 6c(,0 rk fwuk vx/gf d/3, what are the new mutual forces?

  Two charged objects attract each other with a force Ffrbw96u,6ev ;(vaivw od *m w6bjz83.hax1w i. 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 is now equaeia ju9 1 6mrw*x63 ;aob6 ,dz(hfwwwvvb8i v.l to

  An electron and a proton are separa0omsj t q 8u*g-ot.,ivted by a distance of 1.0 m. What happens to the mj- ugvmt,8. *q0sioto agnitude of the 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 hoe;9o m6/amzje* xt6ete5-gyappens to the magnitude of the force-oa669o 5;m etzgmee jey/x*t 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. Whawgd/m+ *ru /vwpz 5xc:t happens to the siz5/vwzum/xd +*pc : rgwe of the 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 x5 p27tnj vlx d;,fw*jpoint 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 of -Q are placed at the other three corners of th;jl,5 dwnxp7* 2vtxfje 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 triangle. Wxufglur9ad9h* (o( j 7hen 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 c frgh *ul xdao79(9ju(enter charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following ispx+, x 1fc1w ;b0g.llppd7qcl not a vector?

  At twice the distance from a point charge, the strength of the electric fiec0qz vx;n9r pdtunc:dm8 4u 4+ld

  Is it possible to have a zero electric field val4*bomr,y8/1qjrc t pzue between a negative and positive charge along the line joininbc,tqprrz * 41y8/m ojg the two charges?

  Is it possible to have a zero electric field value between two positive char/q ez /2v0,wniwuqc .hges along the line joihn.u,wcq/wqze/2 v i0 ning the two charges?

  Electric field lines near psitive /,jaq bm2/-5sqm wcx5h ks(wipoint charges

  The electric field sho cvq1:1hquwks6-ljfeut0* . own

  Can electric field lines intersect in free spaceyxv.k(yfz ez-/xsjwg 3 q6: t/?

  A solid block of metal in electrostatic equilibriumtfa7u; dtj npk)k00-q,i iw4t is placed in a uniform electric field. Give a statement concerning the electric field i; an0wutt 0q7kkf,d4ijpt- i) n the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each gs; 6,d4z z. zr;sact/nc/nquhiven the same charge, t;4cs hz ,cszun;t 6q.z/danr/ he electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests zq1 y,wmsit.3p 3ffy4on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block' 13y,3 pzmq.4fiwyfsts top surface?

  If a conductor is in electrostatic equilibrium near aszo*xpxhl/pz: 0t 2a0p /a /sbn electric charge

  A positive point charge is enclosed in a hollowy /rajz8,rdx ) metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above tr )z yja8d/,xrhe hollow sphere has

State three properties of conductors in static equ;;vww-0oebscb2r d x;jz*sati ,a(v* ilibrium.

State Gauss's law.

  The charge carried by one electron is0k,tr*o6ev27zeq*r8i ide ji $e = -1.6 \times 10^{-19} \; C$. 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 elx6r6q/;dq 7nsg0y vsc9ur2hu ectrons does this piece of placunysh sq x9r q26 u706/vr;dgstic have?

  What is the charge on 1 kg of protz j7; xaquj)e8ons?

  An atomic nucleus has a charge of xb ujavqg6:8w ,rsic o84;yd )$+40e$. 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 :dty4p-b o q+6 vs+/ymf-) wxf.r ury6lk ssc.mC, respectively. What is the magnitude vw:ryrf )-sdp64x - .mq/kby6ulsc to.f+y+s of the electric force between them?

  A 1.0-C charge is 15 m flaap b*(cma. 4/qrh9 uo5uu, srom a second charge, and the force between them is 1.0 N. Wouh (5/ ms,a94.ua cbrpl* auqhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far 9s nd /y.pjti*.2. w5kc vbfkvapart are they?

  The force between a n :vw:qpwo7, drh4ovh 7kb5vvv7 -a( n$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm ap* ix.i0av1 z *6klodcpart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric cxdoli.6 ak 1z*p0vi*force between them?

  Three identical point charges of 2.0 mC are pla.eezr/iry 85jced on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mark. What are the magnituz 8eey5ji.rr/de and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on ramx3+53yzx0z tw bh *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 cm mark. What are the magnitude and direction of the electrostatic force which3 azt3x5xr h*wzm0 b+y acts on the charge at the origin?

  Three point charges are locatl 1 /odq1)irgrx;vz*o ed 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 forcer* dvgx r;z1q1iool)/ on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a seconmi13d;.*vcnd)kq1qui x/tt.u wss) pd point cha.xd i3;qq v*snu. uw s)ictm1p)t/d1 krge 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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at87, gl 7)ks8kyizd4l:c bfx xe (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge? 4x7k8e78zc) glki: bflxd,sy

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is-z u s8gz:v pt8o+pa/s at (0, 0). What is the direction of the nes8pz:/pa8+ - vutoszgt force on the 5.0 nC charge?

  Three identical charges of 3.0 mC h )l*w3qq5kuj g 1ug;qare placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of theuh;g*q)qkw5j ugq3 1l electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are se/kgru 4nmn:40dg47aow 0cwbu5 yx 6xeparated by 3.0 m. At what point, on a line betwe n 4eo/4gw u65:xwy c7nkra0gmx 4du0ben the two charges, would it be possible 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 charge is g2ga)1 pssr ag21*qi wat x = 4.0 m. Where on the x-axis can a third charge be placed so th*g 1gap )gaiss12q r2we net force on it is zero?

  Charge +2q is placed at the origin and charge -q r:loly.,w4d v is placed at x = 2a. Where can a third positive charge +q be placed so that the force 4vywl:orld .,on it is zero?

  A copper penny has a mass of 3.0 g.osy qm6/: t;cj 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 the att.oxr5r4x;dwb/(c8 6 jnyzbav raction of a fixed proton some distance above itb(; z5n6 /ry48wjdrvboxc.ax . How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threa.318ab m i//xyksgfxk.y il:is+zr: mds which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until .ib 3 k8l::az/g isxiym/ srkyfxm+.1 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 magnitude of the etb d +4.m7fwbrlectric field at a distance of 1.0 m from the nb4ftm. 7+wdbrucleus?

  What are the magnitude and direction of the electric m(0 dycfw ,a8 d51ouavfield at a distance of 1.50 m 8cdw0vmu(f,o1aa y d5 from a 50.0-nC charge?

  A 5.0-C charge is 10o yy rzqas ( h/l9n)yh+-as/kt2swg*- m from a small test charge. What is the magnitude of the electric field at the location ofs9 ()s+ sl2ky/q/arghwytz- oynh -a* the test charge?

  A 5.0-C charge is 10 m from a smaljgpc uw(:cvgm:p*r8mvt+03p2ncdw ) l test charge. What is the direction of the electric fi2uw c:*)pmwp(mpnr vvg8d3c gtc0 +: jeld?

  A 5.0-C charge is 10 m from a sye +yoi l1v1p o4 o.5dxkm(+ilmall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the ly+y(+o. lopv4 e 1klm15i oxidocation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance of i3u1hytlez5-lad -r 14.0 m. What is the electric field at a point midway betutr31i5ad-z hy el1l-ween the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mw bced n6 gz+l..sk;7yeter stick and a -4.0 mC charge is placed at thewk gz+s.l 7dyb;6c .en 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a hk:8w+k ,kc;qt)j jpr -4.0 mC charge is placed at the 50 cm mark. At what point opjkk) j,; 8qth k:+cwrn 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 and xdgceb2btunu iu9g /lo:-58l 8f jnc-6 = 0.20 m. What is the magnitude of the eb5l/g2ucfun9j tlgeb:-ni 6cd -8 uo8 lectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of sidgrj ; .xfhoo2fi(grho*+;nq 4e 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fir gi;(;gj.xohfqnf+o * h ro42eld at the center of the square.

  Consider a square which y68 6c7;lca*m;hviqw +iadco is 1.0 m on a side. Charges are placed at the corners of the square as fo+i;m *w 6acqy7d; c6lvc ha8oillows: +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 placed in a uniform elepdfh n;qj/uo+9jmx+6 ctric field. What is the m6 uqj f9+/+jxdp no;mhagnitude of this electric field?

  A particle with a charge of 4.0 m7-qpqbuz+*,59) -t hbwo 53hc wp dljci)jdd xC 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 placedbbr8g r (2v9x /cb(k/em*mz cu in an electric field of 6000 N/C pointing downward. What charge must be placed on thebk( 8vmxg(cemc*92r/bb u/ rz ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC.. :pgigzc q4rfjb 8ogp 7xee :l;*n/3o The ball is placed inside a uniform elecf;i7n ozolx/4 e.qgp8: rbe *3g gp:cjtric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radiby 3h-xm,)x(fo ene x7us 10 cm carries a charge of +2.0 mC. What is the magnitux -no,e(yfex3 7 b)hxmde of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is 5l *:skr zp8tnthe electric fieldlpn zts5 r:*k8 6.0 cm from the center of the sphere?