State the law of conservapq 5rk9s 0a9rgq0o9ldtion of electric charge.

  Is it possible for two negative ca chj.5ofy;.2 uqn7h dharges to attract each other?

  Is it possible for a ) gwm0he5o4g fpositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Dupmtj,x;) *yh ab(ri 9nring the process the glass rod acquires a positive charge and the bh)*;ayxi9 ,nj(pmtr silk

  A proton carries a

  The model of the atom sho*czpb hwxe25o:1wpbmj- 4se2j4 j a+iws a

  A neutral atom always h23 mk,gii/ xedas

  An atom has more electrons than provr 2be y8re3d9tons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refem0n.+edtn m s,rred t,.nn de0ms +tmo as

  Materials in which the electrons are boune 7 d*pzm)-wacd very loosely to the nuclei and can move about freely within ) zpeac*-m7wdthe material are referred to as

  A negatively charged rod is brought near one end of an u0qao -/ii ;ibbxdmt9r+(q ;o cncharged metal bar. The end of the meta +b 0(itiqo9r-dci;mbx /;aqol bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutj6-utgv p-:z f dwp b5r)sxufqf) m8mxc*x72.ral. They are placed near each other on an inm6 f-xt ):rubjv5xfx.f-8*c 7s qp dgwmpz 2u)sulated 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 posh-wyr09sjp o ss,8 f xg/7tl5nitively?

  An originally neutral electroscope is briefly touched with a positivebsmi; ng d: jzba-+.xbd3m g7:ly charged glass rod. The electroscop+ig-;bjb3a: xdzm:sb. 7 dm gne

  An originally neutral electroscope is grounded bri*zajih jrx8:8 j(, wchefly while a positively charged glass rod is held near it. After the glass rod is removed, the elecz ,(xijw*rhjc j h8:8atroscope

  A positive object touches a fp7mtuj kz1yp.8:g ncl,f( ,fuoq*.wneutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not tono:,py. ,*kffptlu qw. u m8(c1fjgz7uch it. What happens to the leaves?

  A large negatively charged object is placed on an pi69*ccgi4 .d4 gml ewinsulated table. A neutral metallic bdlg iim.4g pw46*9cec all 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 charge on each ball?

  Charge is

  What are the units of the Coulombky7 )t)f nbx4d+g;,urfqe 5vf 4ycsm : constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a dot 9m vvonc5;7istance d. The first charge is larger in magnitude than the ston75c9ovv ; mecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near ceq 8mlu q3f5/nc)zygsq,asb h;d-94each other on an insulated table. Which statement best describnm/5us8z9qc qh b4qafy3lds ;)e,c-g es the electrostatic force between them?

  Two charged objects avn,z geb gc,30 ik0lu(ttract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between thegn z , i(,030kvgucelbm

  Two charges are separated by a distance d and exert mutual attracto82smoq7gr:wm9z s 8 live forces of F on each other. If the charges are separated by a d8l8 ors:zqg9o m7ws2mistance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a g+pt te,vv+8iforce F. What happens to the force between them if one charge is doubled, the other charge is tripled, and tt+, v8p+e tigvhe 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 distancec5;n* cw/;i+mk6sddk mlul/h of 1.0 m. What happens to the magnitude of the force on the protokh ddw;l/lc;m5/6sk iunc*+mn if a second electron is placed next to the first electron?

  An electron and a proton ar*gyx.b s hn(z+y-gtjwf u/(q( e separated by a distance of 1.0 m. What happens to the magnitude of the force on the first elects+/w(g*(.q gbutj(yxnh z-f yron if a second electron is placed next to the proton?

  An electron and a proton are sw n u,-yjzth rry efha.ay*i;zbg2f9s65+ j94eparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the prot.ga,hi5j2h z6y*- f9rbjsr tyw 94a y;fzn +euon?

  A point charge of +Q is placed b ipmc0+od* :ezo1pg+kwh++c b 1tl1cat 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, 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 sq+c1d +1 +tmb+ :bokccpg zp*o0ilhew1 uare?

  A point charge of +Q is placed at t rs p0oyw5wt, e,);1tjd:+o f*s udxvbhe centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0tx os1p:d, y s)*rwv0et; o5bfu,+djw N acts on 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 is k*,p-sat4nu knot a vector?

  At twice the distance from a point charge, the strength of the electric f81cp;/v e71ak g qx9e hmm1gvtv5 ku5hield

  Is it possible to have a zero electric field value between a negative and posnkfr4g8 bya2+f .dxu+ itive cnfbd+ag.4 fx y8+2 kurharge along the line joining the two charges?

  Is it possible to have a zero electric 1eh ifp,jzj+,( ( xkq 8-ajlqufield value between two positive charges along the line joining the two charx1ifjqpa8k ,jh-q((z e+lj ,u ges?

  Electric field lines neash*yj5dmc55:d+*u d am(xyn fr psitive point charges

  The electric field sh :9rw78 mukhfvdgm*e -own

  Can electric field li jv8 mr+qo14senes intersect in free space?

  A solid block of metal in electrostatic equilibrium is plat9aru lwp;,n79 lhu8jced in a uniform electric field. Give a statement concerning the electric field in theaj 7 u8w9;n, 9prtllhu block's interior.

  If a solid metal sphere and a hollow metal sphere of equal dia5fy/ne-sk n6f0vp6zxs/ dk .ometers are each given the same charge, the electric-/. ez06/n nfvxsokfk5dys p6 field (E) midway between the center and the surface is

  A cubic block of alumxm1+jj qd+vzmlpi obk *t)w/i *;b4o 1inum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge onjdil*1obm1t ki) bx+4 +pz;/*qwjov m the block's top surface?

  If a conductor is in electros(j7whc(f4j iytatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metfl/*xe4pv3.n8f dq x) d1m qiwallic sphere that is grounded. As compared to the case without the hollow sphere, the .1wd84lpi)nxq/v ex fq m fd*3electric field at a point directly above the hollow sphere has

State three properties of conbj5.a rb,vl)u ductors in static equilibrium.

State Gauss's law.

  The charge carried by 9 dav, gqqebyb np0g55/e2hl6one electron 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 ec 3 ji)tc x49.9)ahekklckf2 ilectrons does this piece of plasti9jkkc4cf2ietl) i9k) .c3a h xc have?

  What is the charge on 1 kg of protons?9t ;k k v sab2di78*,sdqpc,cb

  An atomic nucleus has a chaf* g;/)h7 tlueahf6iprge 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 chkl0uttz rq3 t 9pcppv(9ex:.6arge values of 2.0 and -4.0 mC, respectively. What is the mztupq( tk09 v9x.ec6:tl3r ppagnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweensn1wdf x59 o ahges;9) them is 1.0 N. What is the magnitude of the;o99w 5)fs1nx ahgesd second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apartrr /+i mhpuufo))3h0rxo/5uf are they?

  The force between a 3 p;koe+zlz4 up5) ax 4vmow7ahn /*bx$30 \; mC$ 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 force.f7**0xi n qkej If they are moved to a new separation of 8.0 cm, what is the electric force between them?*ekin7fj0q* x

  Three identical point charges of 2.0 mC are placed er +8z ee: --m+o0irrsk ijt2von the x-axis. The first charge :ti 0i+szvr ee-mjr+er 8-2 kois at the origin, the 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 pl6w.k,fe2r m ai 2kb87pqs:s doaced 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 electrostsksbmar268fe7oki p 2 :wq,.datic force which acts on the charge at the origin?

  Three point charges are located at th*tx5+ ,4rn s3r:kctkjm ,dtpc i4ab5ae following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mCm,,4a s cjink:k5xtbcd4pr t+ *a 53tr at 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 center of a square, bmt*lw :s/yw e*6t:ipg8/hfx 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 forc 8pgms6lfteb:/i:wh*y w* x/te 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); Q2luq2qvw/sery 3qdw2-+c 51iew55u gi = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at ( d1/w3c2r+qgl2we iei-5 u55uqqyw v s0, 0). What 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 nC/.9mmf ej3 vz nmy.v0n is at (0, 0). Whatm.m3ev9/yn vn 0 zfjm. is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral q fau2; w+nq/j3os +xmtriangle which measures 30 cm on a side. What is the mms/3af q wn;xqu2o++j agnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are sepabe1g;e.-sqp frated 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 that the electrostatic force acbp fqeg;e- .s1ting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. W2 o*(ngvegm9lhere on the x-axis can a third chn l* gvogme(92arge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and yrd(v15,pjis7 lrx+ r charge -q is placed at x = 2a. Where can a third positive charge +q be plavspryl+1i r,7jx 5(rdced so that the force on it is zero?

  A copper penny has a mass ,i y;r awijl1g8-fkdlm647qjof 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 grav / 8gpvwq0rg67lef6m mity by the attraction of a fixed proton some distance above it. How far above the electron is the prv/wqmge 60fl6p7mg8r oton?

  Two 0.20-g metal spheres are hung from a common poincq. --7 sz:o5be:i:czuvrg c rt by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic re7qs:-crr -uzi.ovb:ezcc :5gpulsion 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 charge5j qagp.3 yrl9 of +40e. What is the magnitude of the electric field at a dis5l93r.ygqpj atance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dist+,z otwj5kku0ance of 1.50 m from a 50.05z,j0kkow +tu -nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of:r s3(javyo9r the electric fier(yaj 9 ors:v3ld at the location of the test charge?

  A 5.0-C charge is 10 m from a small test c5k y *5h- sz(oimfhzo(iet9+rharge. What is the direction of the eioe5zh 9i+rk-z(t*( yfsm 5holectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnita +bp/(gsgrut1gxb86 wd (m6w ude of the force experiencpb+wm g6gxutd (6gb18/wa(rsed by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 -.3 tewhebi*k12zp hm5 6xg;kor vp*hC and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two chargphex vo* t3zh6 hmb-1*pke.5kw 2gir ;es?

  A 5.0-mC charge is placed at the ewq)1 uc.6q hub(a+hz1pbn b.0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is zhwu.p n aubb. 61q+eh)1cb(qthe electric field at the 30 cm mark?

  A 5.0-mC charge is placed a0 lwp46a*o yb7kyqv:gsih7* zt the 0 cm mark of a meter stick and a -4.0 mC charge is pv*lwhb 7* 6og0k p4yay:sqz7ilaced 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 m(mc;xip ktlflmg ,-22c, .shsj: s.t .qpst6l C are placed at x = 0 and x = 0.20 m. What is the magnitude of the electricm6kcqctpl mss,jgll.. isp2 2ts.fx( ,-;t :h field at the point midway between them?

  Three 3.0 mC charges are a2gyx,m /bdffl1 pf0j )t the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at thbf pgf,/xm y01)f 2jlde center of the square.

  Consider a square whicha puti8,7-pko is 1.0 m on a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0it p8-ok7a up, 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/x. *tgt/voypqu 3o5f on a charge of 5.0 mC when it is placed in a uniform electric field. Whavqu3o o*5y/ /gtxp.t ft is the magnitude of this electric field?

  A particle with a char7-szicbt y;hp4-7ul3gb kj;8 kq/ usage 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 placed in an )ljn5 jfx5 *bgelectric field of 6000 N/C pointing downward. What chab5gjxjfnl5)* rge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is pv4r: (il 8f5ef (vxxpclaced inside a uniform electric field, and is suspended against the force of gravity. What are the maf4x l8rfe5(: pic(vvxgnitude and direction of the electric field?

  A metal sphere of ra+t9k+3xwca l7kp,huyn p nz((dius 10 cm carries a charge of +2.0 mC. What is the magnitude of the ele xhnk+(7p(a, u lwtcz9k3+y pnctric 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 tmq z85wlnmv39,vj )s q,qd4vd he electric fielvd v,9 l3vznm 5mq)qsd,wjq48d 6.0 cm from the center of the sphere?