State the law of conservation of electric - s4z**zxlvnbxsp2j u uur--.belh+7charge.

  Is it possible for two nej c;:z+(drx vhgative charges to attract each other?

  Is it possible for a sbvu0;03w,z a* raenvax y06n5a/dpl positive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. y,a rs7g+q d+7t;2*xcd:zlo pgwc t 8fDuring the process the glass rod ac7r:*dzfayl 2g,7x8pt sgc+ d wtq+c;oquires a positive charge and the silk

  A proton carries a

  The model of the atom3ex5di 0m6 1g er*wrlhz 6x/if taa epe5.2mn9 shows a

  A neutral atom always hasmvlu+3 3m nuo ; maj8fm2qe1g5

  An atom has more electrons than protons. Thtk5lj q3 zp//2 duem0me atom is

  Materials in which the electrons are bound very tightly to the f qin5wu7gh e08g9v*l nuclei are referred tq 9 eniluw8fvg *hg570o as

  Materials in which the electrons are bound ves-dx/zy8,w a*g7 hz pzry loosely to the nuclei and can move about freely within the mhz,z8z*- / awxs7pydg aterial are referred to as

  A negatively charged rod is brought near onj f6e. ;98x m6lfef(mz td,vree end of an uncharged metal bar. The end of the metal bar farthest fr ffdv ez9 erm (x68tl;j6.mef,om the charged rod will be charged

  Sphere A carries a net positive charge, and nk nbp. 8v-)nksphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. pkkn. n)8bvn-Which statement is correct?

  How can a negatively charged rod charge an electroscope posi r oxj*i;xa. /od8w9ysh-k a(nz3uxy :tively?

  An originally neutral aga b* k+8e*:2om ,ihuimzl4velectroscope is briefly touched with a positively charged glass rod. The electroscopie8:+ ivamlk,2obahg 4*uz m*e

  An originally neutral electrosco 8oz9g(aue7lg pe is grounded briefly while a positively charged gol 89 eu(gz7aglass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the ws*ux v 5;j *mboow2i.leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to t xj5;sw*iwboo*v m2.uhe leaves?

  A large negatively charged object is placed on an insulated table. A neutra7 t;dzanl8vx(mk5- 5:iib k ms w53heal 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 55(sk:mza57k-wbvxn d8 m3i lia h t;eforward, 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 ofr64z zi7hbk5 u the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are se7 61 8 orke6cwcqsf,wnparated by a distance d. The first charge is larger in magnitude than the seconrnq6 e8,16owcsc7 kf wd charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near b/7geda 79azv each other on an insulated table z7d 9a7abegv/. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a f9vv,y9+ td.v4q m +lyjtb:iv certain force. If the charges on both objects are doubled with no change in separation, the v9 .:ft4 vj i btyd,yv+l9+vmqforce between them

  Two charges are separated by a dista5s3+t4qo pcb9c,hqn ,fmnw7yot 2 tl 5nce d and exert mutual attractive forces of F on each other. If the charges a mp, tnn qc4 7sl+yfbt2owhcq,359t5ore separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the fz:yy1zkzlmux)7 9 m.horce between them if onzl.7:k zxmy9z)h1m yu e 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 equal to

  An electron and a proton are separated by)*.p3 m)up *mnzqv r3fwea ab6 a distance of 1.0 m. What happens to the magnitude of thezq au*). ev 6b3r wmma)3pn*fp 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 happens tosf2f;qz,nhc -r, i0m7 mtb n+r the magnitude ,m ,rinsrfcnz-72h qb+0;fmt of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proto0eqg g2 deln )2rls,*vn are separated 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 closegldlee*sgqn )2,v0r 2 r to the proton?

  A point charge of +Q is placed at the center of a squarzsrl 31* xbmxu x-1np f27l4uue. 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 -xx-nx3*m 1plub4 ur2 7lfu z1sQ 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 p0n zq:j nndgz)0-hb. 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.pnhz q-gn.)znd0:b0 j 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 vertices?

  Which of the following is not zc +jknc*om +mu)) +pja vector?

  At twice the distance from )mqbr6kq vu1md ghh (y 5:nxgd*:9 +vza point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative laq2b 00dso fgd(:zg z,28 nbxand positive charge along the line joinifd,2 x0glqda 2z8:gn(obb 0zsng the two charges?

  Is it possible to have a zero electric field vs(0znfz + bp*falue between two positive charges along the line n+zszpb*(ff 0joining the two charges?

  Electric field lines near psitive poij(vy,m6wz ott )jl.3 mnt charges

  The electric field sg meddy/fg*+ve.p/w f t, )-yt5h .zjqhown

  Can electric field lines intersect in free spac5ev l13fd0m rie?

  A solid block of metal in electrostatic equilibrium is placedi/ iymmpg6b (-1yb b:9ye pg3tgu0b)e in a uniform electric fie61e(bp9pbgg0 iy gmb/u: -mbyyti3) eld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere ay/d0ii fj:ig, nl xu( *(1ssl xblb;i+nd a hollow metal sphere of equal diameters are each given i l* gs ini i:jbds1l;0y/xb(xl,f( +uthe same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table ih 0sv;am k+wuzb 4u84ln a region where a uniform electric field is directed stras wh;0lu+vuzbm48k a4ight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium ne zyd1n5j j*bc:ar an electric charge

  A positive point charge is enclosed in a hollow metal xvkvo 133ttq3lic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a poinxq 313v tkot3vt directly above the hollow sphere has

State three properties of conductors in static equ2un,nmk um*k 8bs3, tuilibrium.

State Gauss's law.

  The charge carried by one el weu+jtkh/( 8nectron 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 +2fpra n )c03ak,.00 mC. How many more protons than electrons does this piece of plastic haveka 3 r0,ap)fnc?

  What is the charge o q0272oxtyri ii0+w uzn 1 kg of protons?

  An atomic nucleus has a dy19xq .c ylkp:rdm4-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 lx opj;*n x*do (tqv+4and -4.0 mC, respectively. What is the magnitude of the electric force between them?jo*oqxt + (d; xvn*pl4

  A 1.0-C charge is 15 m from a second d8ohm u wfqwx.3r*)i(ex7t n5charge, and the force between them is 1.0 N. What is the magnitu()q7fd e*n.iotxhxm8 ur3 w 5wde of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are 8pmvd;+9lon2-ft7eb+rgv*u p k 5pj ethey?

  The force between a 2 s,nv3k53 1 na d/riw;h9kzh;kelsrg$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.fxiktt08(aze1xqjv - h9j;fye*+n*g 0 cm apart, experience a 1.0-N force. If they are moved to ae(a +x9ft*kq8tyj 1;je-x0nfz gi* vh new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-pgf-9js7jr: 6 d z 3oylvoal63axis. 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 mad 3al3 s:jp6j 97lzogv6 ory-fgnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-akwa*5oz8 o1 hjxis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the rightoz8kao5j*h w1 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 positeuc8fsds )f+, 62 wlgmions: 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 forc +fec s,m2 l6sfd8w)gue on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a 6t:*ky t*-w b7biz2di 5atxrm square, 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 force that acts on the center charge if a third charge of -Q is placed at the lower-5 yt7 rai w6z k2bd-*ixt*m:tbleft corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = +w 72i(4jnl hoat;j;8w xyjnby b1rz*-1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude o8a;jrw y4jbti(;xw1yh7boz2*nn jl+ f 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 /idte qtx*+- sm); Q3 = 5.0 nC is at (0, 0). Whadi-qx/ e+t s*tt 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 cuix/f :+jct )l,gpg; of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the ec+j) ,tg/ f:piucl ;gxlectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which arlq:g ve8nbaf*i18r* v.f s4z ue separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Qziulfv 4r*.s8:1v 8gf aqbe* n 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 at x = 4.0 m.;li na i4u ;5kk1ndy2n Where on the x-axis can a third charge be playku 4l 1ki2nn;5 a;idnced so the net force on it is zero?

  Charge +2q is placed at the origin ss05zx3t ) qxpand charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that txzss3p 0)q5 xthe force on it is zero?

  A copper penny has a mass of 3.0 g. A tv(bso6qy)1s -c7hvnv otal 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 chhy igc:49m j d0)vo5z(;hbm gravity by the attraction of a fixed proton some distanjg mmzc 0 4b5(iyhh);:vcod9hce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point ve f,wkkt8 l-g+ ))garby nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angrwgtf vela))kg ,+k8-le 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 ofv3eas p302mv mij1 6d3m ww+rd the electric field at a dijvwe3srid13v+ wma36mdpm 02 stance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fieldyy)fg)o4v 6tq- :ehy w at a distance of 1.50 m from a g4f)qe)y oytvh 6-yw: 50.0-nC charge?

  A 5.0-C charge is 10 m6f 9h 9jrn+npf2. kidv from a small test charge. What is the magnitude of the electric field at the location of tfhpj29k6nr i. fn9v+dhe test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direcwhe l9v+d +r f6agll(6 *6vhcltion of the electric field? (+f 66+hgl*ve lrlvwl9hd6ac

  A 5.0-C charge is 10 m 0ljhw t96d+orfrom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at thrt0ow9hdl 6+je location of the test charge?

  Two point charges each have .knx7di26a(:r mthr4 mqyao t1ka8 a(a value of 3.0 C and are separated by a distance of 4.0x6qok:h a a k tm1.tdnr2(a4 rimy7a(8 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 vt :l urh9 zg3fifu.-*cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elec*ruf h 9gf -:3.tlviuztric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC charz ym0 w3+:bxdoge is pla+moy 3dzw0x:bced 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 5ew o+wp1;npjare placed at x = 0 and x = 0.20 m. Wh;ojn p5we p1w+at is the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are athz 2v; bn/bql,/ zsmx +0pbu8w the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find qh8npszz 2mvw0b/+; lbux,b/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 corners o; ttx5-)e u(dd8 xvimzf the square as follows: +4.0 mC at (0, 0);ix(5dt-)z vm;e8xdtu +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 ofsslc/due 7bf 7*9. xce 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric field?xs dbus9fcee7 *l/. c7

  A particle with a charge e2 *)d*6xpqtxbewt ;zof 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 electric fi6-eanh,tcwb3n3 2nol)ri cl )eld of 6000 N/C pointing downward. What charge must be placed on6)ce-)cnnlh a nri3 3wbo,t2 l 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 placed rg)6;sh; bvj(ksa m5p-i pj+c4/qzib inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric s5ma6 pz/ij+;pb-i )chgs4;j q(vkrb field?

  A metal sphere of radius 10 cm carries a charge of vrws+mzi5m dj ;) mxk-2-eyw( +2.0 mC. What is the magnitude of w ;zw ek-y+j-mxmm 2isrd)5v (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 the el 18mcxko0d:f.. ch3 nv/wgsvsectric field 6.0 cm from the cent.shsc d vn:3xmfv.1w og08kc /er of the sphere?