State the law of conservation of electric charge.m b1iix xs*+;i-f*i hr

  Is it possible for twok in/p7inj6za6t9lk366pz p 6q k,pgr negative charges to attract each other?

  Is it possible for a positive and a negative charge torjg2mn. 4eli)x 0v:0 :ruxpmy attract each other?

  A glass rod is rubbed with a piece of silk. Du65s9k c pw/ly1zpaqrgv/287x 5 ewvccring the process the glass rod acqu rp5wg85 qz vk svy1acxcp2/6wec79l/ ires a positive charge and the silk

  A proton carries a

  The model of the atom sho;5 k+ uzdfhau,89 kj0yry .cosws a

  A neutral atom alwaysdm3.mtc 42qo0wesd -s has

  An atom has more electroxmr e )cp 0s0i z :ey(qhy0-t2adrr g/jqsb/4/ns than protons. The atom is

  Materials in which the elh hhm 5 .;bm8w(49b8kguqcjrv ectrons are bound very tightly to the nuclei are referred wh jmmg5h.(9h8u qb8 ;b kc4rvto as

  Materials in which the e 9 .l;himgbk3electrons are bound very loosely to the nuclei and can move abogl9k3e ;mb hi.ut freely within the material are referred to as

  A negatively charged rod)q3fkhxi,ti)des 12l is brought near one end of an uncharged metal bar. The end of the metal bar farthest from the csi1 thf3dq)2)k ielx, harged rod will be charged

  Sphere A carries a net;r;:+jcjkoeuoem 5e5zc 0e +ix oed ,+ positive charge, and sphere B is neutral. They are placed near each other on an insul,kxr+u:edjem 0ei5o ejc; oz+c+5o;eated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively ey :;l 95ffuh6aa.oracharged rod charge an electroscope positively?

  An originally neutral electroscope is briefly toucherg ,.4oxiohq5d with a positively charged gigr4oh q .x,o5lass rod. The electroscope

  An originally neutral electroscope is grounded briefly5 /-o 0jodxviyr-0f ko while a positively charged glass rod is held near it. After the glass rod is removed, th 0vf--k0j5oy/roixdo e electroscope

  A positive object touches a neus;qf*ha6b,jvcvki 6:tral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to:cs;h 6 a6i,bk jvvq*f the leaves?

  A large negatively charged object is placed on an insulated table.j.,y*)mfmrc/alf h5 i-i( :q-nr t xta 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 ball touch the negative object. What is the final charge o --fm5m)xha,q(art i f/c .ti*jy :rlnn each ball?

  Charge is

  What are the units of the Coulomb cxy0 f-zm kmnh: kj+/izjz, p6z46ei0y onstant $k$, which appears in Coulomb's law?

  Two charged objects are separaemw6j /,mklnr8gpid- :w,/+ h3fldvgted by a distance d. The first charge is larger in magnitude than thevf,k8del6:w gpgw+dmimr-3/ l nj/, h second charge.

  Sphere A carries a net charge;p4;abha1p de-on1r nq)kag 5 and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the elec;1g-p 5p derna;1a)qa bok4nhtrostatic force between them?

  Two charged objects at wcjbh04z sl9.tract each other with a certain force. If the charges on botc.0b 4wl9zsj hh objects are doubled with no change in separation, the force between them

  Two charges are separated by a distadehj,ivan8ld l 1+x3 )nce d and exert mutual attractive forces of F on each other. If the charges are separateld8)+jh i leav3n1dx ,d by a distance of d/3, what are the new mutual forces?

  Two charged objects attract qh o ;ao8w1i2hyj((kh 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 betwhh 1ok(y (2qj8;ahoiween 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. What ha tid(;ky /5xmt-+xqtuppens to the magnitude of the force on the proton if a second electron yx;qd-( im tu5xtkt+/is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What rn e t)y(cjl/7czh17ehappens to the magnitude of the force on the first eleclnet/7)(hj yz7 rc1cetron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Whatgclxl sng q(+1xh-+g+ happens to the size of the force on the proton if the electron is move( g+clxqgxlgs- + hn+1d 0.50 m closer to the proton?

  A point charge of +Q is placed at th e15 n( cxslf-id2r(j+hqi bo3e center of a square. When a second point charge of -Q is placed at ih ld-2bn cjiq+o3 (r(e5fsx1one 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 placed at the centroid of an equilateral triang oiyo32x d2p/gle. 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 theoo3y2i 2dp/gx 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 not a v-r-nalbf0bi3l9 a 8yoector?

  At twice the distance from a point charge, the strength gl4f vix+ p; w g-sqcfj*e :rb1z2z47eof the electric field

  Is it possible to have a zero gch8fk*0 p5:yl ( pp0ns.n ctzelectric field value between a negative and positive charge along the 0*.lf:p phs8zp5tcg y n0(knc line joining the two charges?

  Is it possible to have a zero electr6fvz .p-wvch ,ic field value between two positive charges along the linewc,f .-zpv6vh joining the two charges?

  Electric field lines near 46unm v-*hiqo psitive point charges

  The electric field show(v:ysyz1 sj,vn

  Can electric field lines inte kya dk;azf(1/5 um0v51ayb5hn9c9lb)yp w nrrsect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elecyi9z o43 zo jvi020c ou+9ffy-:9v,mnpj ta eotric field. Give a statement concerninj 9,m i+voo2 j9z3f0a9iy: e40ypunft -zvo ocg the electric field in the block's interior.

  If a solid metal sphere and a ho(r19 pzo jx12a 7lap;, nairuellow metal sphere of equal diameters are each given the same char1;p1xia9j(e apnz,r2ur loa7 ge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in aqb-1 0v.qj66gcyrl ke ; e7k8r)poj kh region where a uniform ele.h8kl rkko-vep;y 66ej1rg 0 )qjq7cbctric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equili . d 645,wetjtsqmtxv,brium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere t je4wp8 i*uc5mhat is grounded. As cumcwp*84 5i jeompared 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 static equilibrium.c2.j71ro* dwuoj;dkz

State Gauss's law.

  The charge carried by 2r j6u,k4d aejo1q4hoa j8-ppone 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 t6)3:fxyroqhmC. How many more protons than electronrqy 6o)xf3th :s does this piece of plastic have?

  What is the charge on 1 h1z;i dugj9s;snal ju53 o+d/kg of protons?

  An atomic nucleus has as0 (flsu:2bm1ud. dj l charge 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 of 2.0 2g40v u thrbh+and -4.0 mC, respectively. What is the magnitude of the electric f h+h0tgrvbu4 2orce between them?

  A 1.0-C charge is 15 m from a secondmbfhjv.(mx/cg 0 y- h;b6dc p, charge, and the force between them is 1.0 N. What is the magnitude of the sfm-p bgdh 6 cc,hj0/.yvb xm(;econd charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are theryh/jzi4-wd5 s6fq6 0 r3xgh sy?

  The force between a unh 6*x7rol,qinrxgm c* s pt:1p;6 m:$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expe m8r46wui9eonaaeh0 -rience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric forcea 84m0 69r-o hieunwea between them?

  Three identical point charges of 2.081we w k1zb2vb;7xqfd -y ;rvv mC are placed 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 q8;17fk-y x r12bvbvwezv ;dwmark. 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 char )ov8trb +dwblw(1 dw um0ej-2ge 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 which acts on the charge at the origi(ddjw-l0tue bb1o2v8r+ mw)wn?

  Three point charges are located at thq4fwh;pn0jfn 4tq3v+ e 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 qwq+44fh3fn0p ; vjtn.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, and p7kzy l9 u pck)w*l zm4:4-wlia second point charge of -Q is placed at the upper-left corner. It is observed that kl4i: y-mwl9kuwp c) lpz7*z4 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,muv70t6ygvdmx/ ; qk1s9tod52 hmk2n 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What s0 1 o/ 9t7udkgv2m2;hvx5kdyn 6 mtqmis the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2coxh460 erf 8o = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at6fh8eo c 0r4ox (0, 0). What 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 dy)m-sse bq*cta 40n -triangle which measures 30 cm on a side. Wdbt- sn*)s4q myac-e0 hat 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 uh* kvb1t7xg: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 acting on it wg7hx*but k:v1ould be zero?

  A +3.0-C charge is at the origin6 dyf2o70 ixk(z5 m5y8xvaaw a and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so t a5i7(afaz 5806kxy xmdo2yw vhe net force on it is zero?

  Charge +2q is placed at t7ftr/ixu* vk ce 1hed-918xxf he origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that theex 9e d/f81f1x7hrit-kc vux* force on it is zero?

  A copper penny has a mass of 3.0 g. A totalqwc+s5n kao8 + 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 8n (vhfwr+d2p the attraction of a fixed proton some distance arv 28p+w(fhnd bove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung fro u 3mconwt/)s*m a common point by nonconducting threads which are 30 cm long. Both are given identics /n)m*otcwu3 al 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 +40e. What is tnfr erc6j*,8l9 ri,n fhe magnitude of the electric field at a distance of 1.0f*nr 8, jil6,nef9c rr m from the nucleus?

  What are the magnitude jw4rjhie)w5*p uiq. icl:8 o8f4w)cs and direction of the electric field at a distance of 1.50 m fromj8w )*rw4 ccpj :5if8i)ow h.uiqsle 4 a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnit8zh jp9whib-wo/ r/2e ude of the electric- e/2p wri8hjw9b/ zoh field at the location of the test charge?

  A 5.0-C charge is 10 m from a small tstnj(:+y)wjv yl 9, deest charge. What is the direction of the electric fieys(jnt :9, v+jy)ldw eld?

  A 5.0-C charge is 10 m from a small test chargexo6 em 7f j/;ciniy.t9pis/jy/ppa9 1 . What is the magnitude of the force experienced by a 1.0 nC charg/i/ pn.ot7961jpe/a ymsi jyc ; fxip9e placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are sepapk0k q ::m/3 a8oy1(nqnzrni0 ee g,qrrated by a distance of 40aigkn3n:qqpom:er, 0 8 nz1 r/kq( ye.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed a 9dsbxal)6 fa7t the 0 cm mark of a meter stick and a -4.0 mC charge isdxs7f9aa6 b) l placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at -) b1t k8jqiqsp871iah+qq lqthe 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is thea -t)qbijki8qs8lphq 1q+7q 1 electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. Whzrn o2av;,sv3 ml*q4 mvo:/ooat is the magnitude of the electric/24zo3*v;mlm ,osqo:o ran vv field at the point midway between them?

  Three 3.0 mC charges are at the tg7jz y3k7r86w 5buh.6 qrejkthree corners of a square of side 0.50 m. The last corner is occupied by a -3.7675wt.h j8 ye 6jzbu grr3kqk0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on l*7/,zaqvhkkx ff 8fp mvw(m/p d:)x2a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4z k dfw/h:k) fmx/8v*p pmxv,7fq(al2 .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 m2awj,d2z6 vplC when it is placed in a uniform electric fie6jzw2 lva2pd ,ld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a4b+uuh 8sp0u1 zxyz za33e;gth 9nph + 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 /sv(wk v 3 j2-i :3z-slczzkzl0.120 g is placed in an electric field of 6000 N/C pointing downw :izkl-z3w jv3v sz/lk2(zcs- ard. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.1sn )v; h0*nnrr50 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 are the magnitude and direction of the e vns);nh0rnr*lectric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What isv453l,aejij szeg l49 the magnitude of thev,iae4gs9 l jj4ezl53 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 the electr0fr 79zqs0n yneom* nob3vf cwtc)5+,ic field 6.0 cm from the center of the spheree3 qt sv ,ff0 )c+9w5cnynmorn7zb *o0?