State the law of conservation of electric charge.q 2u5 joy3f/)sif1idq

  Is it possible for two ne eow5ar:n(6oh ja(e,zgative charges to attract each other?

  Is it possible for a positive and a negative charge to attract each ot6h(.u0ytg 0inu ndmd)vxy v41qx15s y her?

  A glass rod is rubbed with a piece of silk. During the process the glas r2y7r0t b,jakl9mx 8os rod acquiretya 7k,xl ojbr928 rm0s a positive charge and the silk

  A proton carries a

  The model of the atom show x43u97xcw z.p xhnjx)s a

  A neutral atom always hasohit-vpljd- (1v,+ t5c oy7bz

  An atom has more electrons than protons. The wiqghsooae .rv a:69 u+.o .a8k, lif9atom is

  Materials in which the elr8z3*bq:oux0 p8 zhcsectrons are bound very tightly to the nuclei are referreds :zuz*q3r po8cxh80 b to as

  Materials in which the electrons are bound very loose*8 sxgv5bn0x) -gtooily to the nuclei and can move about freely within t- *nvtb 5gi os0)x8xoghe material are referred to as

  A negatively charged rod is brought pmpx(; iqa,vt.nmap 6 a)4r4unear one end of an uncharged metal bar. The end of the metal bar farthest from the chargexa6i,44v(mam r.n ) aqp;utppd rod will be charged

  Sphere A carries a net positive charge, and spherej+y nvndw(b7;uge:uv.5s ge 8 B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire s(ne:5guy7;b8nvw ed + ju v.gthat is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positive m+coot+:,mwu emq0+c;) ehzb ly?

  An originally neutral electroscope is briefly touched with a positively chynwt:m9 vtpqt 0 +d .1p:s6iomarged glasos td:9 :0nwi+pttp. 1mq6 vyms rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively cv*yov/ 6gq3cwharged glass6 c*3/wov gyqv rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutra w1hjfdbj /*m173 smotl electroscope, and the leaves separate. Then a negative object is brought near the elet 1 bdjm7*h/wm sfjo31ctroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an inb8 g wqfre1fiiaq+)2* j2ed)b w4xa5;bdghg-sulated 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 bag)e a2;eq+a5r xfbg i1* dfg h)8d4-jibq2wwb ll, 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 Coulo dx-eju :9(xaamb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated dglyxc )7f 5y6by a distance d. The first charge is larger in magnitude than tg c56 xlyf7yd)he second charge.

  Sphere A carries a net charge and3 tcd vf2ghfj(a, 0l47h p zysp.p7p-f sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electry 7sppl(jf f3hgf4tda 2pc,v7p. h-0zostatic force between them?

  Two charged objects attract each other1tzn ,fiu ik-+,w7a ewvrp 4a: with a certain force. If the charges on both objects are doubled with no change in se-epkz7fwr i,,n :a+it wv14 uaparation, the force between them

  Two charges are separated by a distance d and k yk/p6x6id 6me*8r ccexert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what e6xy/id 6c 6crp8km *kare the new mutual forces?

  Two charged objects attract each othex d xccr41 tbb)rof);x lh2,i.r with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and t12fr;t i xdxl)rh4b cx,.b)oche 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 seko qbk/ g1jech,4(x:f kp)ci ;9 :akfwparated by a distance of 1.0 m. What happens to the makciko,x/)pka ;jq1h( 9bf 4 cg:ke:w fgnitude 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.axa 3+g-x 0 gd1nto7trnmt/5f What happens to the magnitude of the force on the firstg15ft+/n0dga3 atxx7o mrnt- electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a,e).rzucy;+kv s(5pcu6w fk s 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 thv)u,c ksu p+f 5e 6r(y.k;swzce proton?

  A point charge of +Q i6i(em2 uusb; .yys q2hs placed at the center of a square. When a second point charge of -Q is plabyuu2 (6mhi 2y;ses.qced 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 square?

  A point charge of +Q is platryv61,v nh t( bx199(vigz wiced at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts on it. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the other verti11bi vh(n,tygw(v96zit vr x9ces?

  Which of the following is not a vector.0rb8l0pxo+, sneb i c?

  At twice the distance from a point chnhm*0b me): *9 wfvloharge, the strength of the electric field

  Is it possible to have a zero w25/sj* m lrv lyhdi:-8l*)cuxeint, electric field value between a negative and positive charge alowmxclhn 5v il u8**dr jy)il,2st/-:eng the line joining the two charges?

  Is it possible to have a zero electric field value betnau5w 0 y.m b+vn kpu-:udn;t)ween two positive charges along the line joining thau.tu n+p)n-:wk0d 5 n;vubm ye two charges?

  Electric field lines near psitive point charge6g8-9uidi/ z wswvg6qs

  The electric field sho/+ hk6cvwlr d))b-f 1cxywf)ywn

  Can electric field lines intersect in freeg+u qc0,3wvpi space?

  A solid block of metal in electrostatic equilibriuuj;ysgc w 7mm9p1 jce43niq 11m is placed in a uniform electric field. Give a statement concerning the electric field in the qemim 9 j; 4nj7cp3cyus11g1wblock's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters a fb f n7.ckfx4rt(.gp*re each givenr(pn ffgb.tcxf.4 *7k the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a woz :r :br9r da-/d-uwpfoden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surfr : -p/wf9:dudabzrr-ace?

  If a conductor is in electrostatc av3d34v5nshv0wa /j ic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spherm fi;p:;spjv5ok(od2e that is grounded. As compared to 5po skoifvjd;mp (;2: the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibcvh2m3l3i1xdtu4a v; rium.

State Gauss's law.

  The charge carried by one electron is * jr(iimpcn 11$e = -1.6 \times 10^{-19} \; C$. 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 el7 yypt bp)1 deou/d9your+ h.-2q/yp sectrons does this piece of plastic hav/o pyh+ y.b1od t)upu7/ry29p-s ydqee?

  What is the charge oms1n5tgf +h2sn 1 kg of protons?

  An atomic nucleus has a charge (rcxh( )fftg 6nu;em +of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separfe- *kjq+fkm x;sp mh )y,4bf.ated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the ma ey;q ,hs.bk4xk pf-m)*+ jffmgnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charqx:r*du)wplu 0(fqlc-1q x 5ige, and the force between them is 1.0 N. dxi5lx :) (1fc 0uqpw l*rqq-uWhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them -ieaqsb);e:gxdyyx m1 b2 v/6of 1.0 N. How far apart are they?

  The force between a z/j iw q wr)/k2q4+tcvzyh.v1iyj5m7 q+ mi k($30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2js uq-/os04;p/ vlyzx .0 cm apart, experience a 1.0-N force. If they arv;4ysj s/o/- p ulqz0xe 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 placed opfx);;8dsqd jxd4 b0 kn the x-axis. The first charge is at the origik xdj;d) sd08pfq;4x bn, 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 6gf w;0utz:np. A charge of +2.0 mC is placed at t pnftu6w;g z:0he 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 the charge at the origin?

  Three point charges are located at the following positions: Q1 = b yxuk:tq-f53z h *yhhr8(z2 x2.00 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 th-2zf5uxyhkh:xq*r 3 (b z y8charge?

  A point charge of +Q is placed at the center of a square, and a s(qw wcomjv w0aa992op k,/.fi h:v7l cecond point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts o m vc(2a7vh/i . oo9 wc:apwl0wqjf9,kn 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); Qs4 ryzdo 4pb693 = 5.0 nC is at (0, 0). Wr o6zdby 494pshat 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 g3)c c, u.xt p9ec.zjz(l q:aim); Q3 = 5.0 nC is at (0, 0). What is the diree3p( .:. qau9tj )zgxl,c iczcction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of0j;gjqm 3*jt0yp:y vd an equilateral triangle which measures:0pjtyy;* j qv3j 0dmg 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. At* rz;9wkm/ k6xmts9ou what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?t/s z6orwk u9;mx9 km*

  A +3.0-C charge is at the origin and a +9.0-C chargo cic03 -1 mhacx13f)qwzx)yq;g/ i gftv 5.hfe is at x = 4.0 m. Where on the x-axis can a third ch ;1cgh .0yi-)xth)cq3f fxz1m qog/ 5f3v caiwarge be placed so the net force on it is zero?

  Charge +2q is placed at the orco. fjaa v*op9n,3r, kigin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on ito*jn cap .9v,a3 ,kofr is zero?

  A copper penny has a mass of 3.0 gct 5w3yw :dh(h. 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 agains1k/( ekya u.g qdm;9yht the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the protonk1qyue k(. ;m d9hga/y?

  Two 0.20-g metal spheres are hung from a common point by nonx;fwc *7 pmm+ dz5jej7conducting threads which are 30 cm long. Both ar;c+mm jjd75* ewpx7zf e given 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 ctaii6j6wyhf 6 )f3v 0+40e. What is the magnitude of the electric field at a distance of 1.0 m from the0fyi6a36j6cvi twh f ) nucleus?

  What are the magnitude and direction of the electric field at a distan(osvvj ;r+yl 1.*x yquce of 1.50 m froov; q+u 1 .vxy(rjsy*lm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnb l 1td7z9ssa15fp5beitude of the electric field at the location of the tess1lfzt7pdb9 ebs1 a55t charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of t50 ,e*af ,kp: ic3)kde fszeihhe eledpf kz*hc:k3e ,af) si 5ie,0ectric field?

  A 5.0-C charge is 10 m from a small test xg0o4vyqsh b2) e3 b8icharge. What is the magnitude of the force experienced b bqeys48i0xh3gv2 o)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 separated by a disfl8z8idu aw* xku63 n1 3-mogntance of 4.0 m. What is the electric field at a point midway betw388afg 1nxmn 3kol*-u iduw6 zeen the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC ch+w2hlv 1ws7d ,zjan ;o) -bj(yeh;rcharge is placed at the 50 cm mark. ;ney aw;-r(2) ds oc b jjwh+7lz1hvh,What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of akc,v/d0pzm ecaa8rfi/ bw/* : meter stick and a -4.0 mC charge is placed at the 50 cm mark. At ewapdzk8b0,ciac//mrvf:* /what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.-n;uwv5z7uew4w :jie oih* s20 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midwz-i hw7jv4si* ;2 eouw ew5n:uay between them?

  Three 3.0 mC charges are hb)a ,xw6ejkz,mps5s0a f . b;f0v 1ymat the three corners of a square of side 0.50 m. The l0mj; sby x ,fv 0zafs5kmp61.haew)b,ast corner is 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 are placed at the cornerfh,ir+ 9afxz. 8td d:n,bja.fs of the square as xtfi8a9dz,: r. dff, +hjbn.afollows: +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 ise6i .lzyc1ash 3voa 0f 4akji(sn, 2.v placed in a uniform electric field. What is the magnitude of this electv(nj a h3f.62ae1,ysv.s0zikl a c4ioric field?

  A particle with a charge of 4.0 mC has a mass ohf6 7ws xyb0, .xdn 0oiyq-:,wpv2kqr f $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is plhofva 52 mj c)j7n1ec)y lq+(saced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball f+ c(7o 5vq1cehj)jylmnfs2 ) aor it to be suspended?

  A foam ball of mass +:db f9z/;po)wmlp 4r qgm xt.0.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What m/l+w 4z:9fd.)gm tppbqo;x r are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2 tnjnl;f h*9/7kgbdv2.0 mC. What is the magnitudev7; dlk jtn29 hbn*/gf 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. Who ( 7nf,vnanw7pii 3ftr;y 04kat is the electric field 6.0 cm from nipf3(wo0tya fn vn 47; 7r,ikthe center of the sphere?