State the law of conservation of electrf+za6f h 7zx1cic charge.

  Is it possible for two negative charges to attract ;k1c3e gz 8sacmqh /-wwee(1deach other?

  Is it possible for a positive and a negative charge to attract each othe kaoy:r6ky.v841 y:rti7s5,yiypl qy r?

  A glass rod is rubbed with a piece of silk. Durxk.j7ng.+ dadzwyzvtg5z/ g .yx 5h50ing the process the glass rod acquire tyvj.dax.g5z5x0n hy7 zzwgd 5. /gk+s a positive charge and the silk

  A proton carries a

  The model of the atom shoz /l/ 6c8*bk d ,wbal(v x0h,oto3yigtws a

  A neutral atom alwaysd+b-nxwvn45snpowx 7 p.m 19a has

  An atom has more electr8 zc4edp0nd-kons than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuco*c / ik8vlj2mlei are referred ciml/2vk8 oj* to as

  Materials in which the electrons are bound very loosely to the nyv6; cv3auk*el- it9 s9hd/qiuclei and can mov qa-cyus*9hvld /3k ;9v6iteie about freely within the material are referred to as

  A negatively charged rod im,s84hzsnj 4iwn ;gno;eo *n:s brought near one end of an uncharged metal bar. The end :j84n,*ohsnw z;4;og emnnis of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere ; 0 89p 5.,ya xvkxjbjzew-y7hgkey.f B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touchebv0 . fa y9pkg5 xz ;yex,.ywjj7-8ehkd with a wire that is grounded. Which statement is correct?

  How can a negatively( (x(veq6hrb c0cbwzu5lxt wn*g :-)a charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touc (n l+uk)*tqhkw* o2ymhed with a positively charged glass rod. The ele w kqm+hlkonu) t2y(**ctroscope

  An originally neutral electroscope is groundedbrfc8tp 7 u h v,9l9zoar6/tn2 briefly while a positively charged glass rod is held near it. After the glass rod is8f2ov9lar t,r6c uhp/t7n9 bz removed, the electroscope

  A positive object touchesl 4/)hmxe1 spivu zs;8u6*nw s a neutral electroscope, and the leaves separate. Then a negative obje m4 wsnzul)ses;i1 hxvu86/ p*ct is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively chan49i:0r) fpt/v g.xn. glocmirged object is placed on an insulated table. A neutral metallic ball roll4no/v)gi xt.:9lpn.c rm0fi gs 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 Coula2*jwo8 *efi)6o dts pomb constant $k$, which appears in Coulomb's law?

  Two charged objects are se4 cct-25j:gilp1xy;qb p+b imparated by a distance d. The first charge is larger in magnitude;pcq bim2jl c 1ip-y:txg5 4b+ than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They 5q4b x*qsqdw+/ mrd )tg;usnf:ab50i are placed near each other on an insulated tr md4dx+wq/s:sgai55tn bq *q0;u bf) able. Which statement best describes the electrostatic force between them?

  Two charged objects at-u/8nnq:bte-m*qz m w tract each other with a certain force. If the charges on boe/* :zw -qb8n-nutmmq th objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exer8* vpu+ndofj+;( gywnz y4pb 1t mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the jyn1 4( *+godpyb; +wfnv8 puznew mutual forces?

  Two charged objects attract eacw):r24 c9drhvfbi8ea h 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 between their centers is reduced to one-fourth its original value? The force is now equalr2fce hr) :v8iabdw49 to

  An electron and a proton are separated by a distance ou)zdxbo f i er0a03j*4f 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next i*feur)3odb4j 0xaz0 to the first electron?

  An electron and a proton are separa-1;qo eyoooc 1 zavq6)ted by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second elect ;aqz)o 1cyoo6o v-q1eron is placed next to the proton?

  An electron and a proton are separated by a 8ld9wiisy)1 luwugccu j4wiv ;p6/ 36 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 pr1ii)w9vcj l/3w6 g4ud; uy6lw scp ui8oton?

  A point charge of +Q is placed at the center of a square. When a seg*as5:yr 244iqmsiq7dndw y 8cond 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 actins*y2si wq :4i 8rgqm54ddy a7ng on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroi* bn /z0kweu+ld 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 a/* ukwl+nb z0ects 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 vecno zwjhchqm x7h 2:9*8tor?

  At twice the distance from a point charge, the strenv) z er1n4 -8qrc6rmsngth of the electric field

  Is it possible to have a zero electric field value between a negc *sxw4h4 lio9ative and positive charge along the lc*hw o4l 4is9xine joining the two charges?

  Is it possible to have a zero electric field value between two positiv)ez7t3 j: hvh;7d4m0gs;dcmxif bx d4e charges along the line joinin;0m3dx7dx cd);bzmg7 e4ih vt4f:jsh g the two charges?

  Electric field lines near psitive point2+-rtz7mzvo e,cz ,bs on:kr7 charges

  The electric field sho 74v9w hw.ncmxwn

  Can electric field lines intersect icmwddw/c y /vk 5,tp81hzp)e-n free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniformbcr1s0gjo,:aktz0 z a5bx*1 xj9/v pv electric field. Give a statement concerning the elect:1xak sg * z xota0p/,c91v50jrjvb zbric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere onni m3me g:6i:f equal diameters are each given the same charge, the electric field (E) midway between the e nm6i3::imgn center and the surface is

  A cubic block of aluminum rests on a wooden table in a e9vs5)l8v/rhzeh-aj2jorjytu f /: 1 region where a uniform electric field is directed straight upward. What can be said concerning the charge on the blockszr u-ja/hj 2 85jf1oylvhv/)e 9tre:'s top surface?

  If a conductor is in electrostatic equilibrium near an electrr0yv /+u x5frqic charge

  A positive point charge is enclosed in a hollow metallic em3 n(f8n(+q6pt -b0 hnvldt(vwi y6g sphere that is grounded. As 8n+hfnbvqti(3mn (ped( ltv6gw -0y6compared 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 fxuapc8 g8ot+u *; d1mequilibrium.

State Gauss's law.

  The charge carried by one elb6a8tuw-d,r zectron 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 o n17o nkq/t+ kfg;0kmmzy3i8of +2.00 mC. How many more protons than electrons does okg y k+; f31m kiq/o7n8mn0tzthis piece of plastic have?

  What is the charge on 1 kg of 5eoky9zn0z0vq) mrtn h 7893.a zypoeang + t9protons?

  An atomic nucleus has a chargeafro;5z bicx(q) 75pd 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 and -4.0 mC*o9istb fb-k aa 7+*lt, respectively. What is the +ab **ok btf7 as-it9lmagnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the foru 0)v7bwlc;h uce between them is 1.0 N. What is the m;0hwv )uu7 bclagnitude of the second charge?

  Two 1.0-C charges have amopwauw/ .e z+bx3dcd:y4/er1;q yf l 3u(kh; force between them of 1.0 N. How far apart are they?

  The force between a 480ysnfa /p4lv:n fj p$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.f :,+zjt fktdhkp.3i ;-dhbw9 0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric fifk9:d;h+p, .tdh t bfk3 z-wjorce between them?

  Three identical point charges of 2.0 mC ajn:qs *cm;k drx*s4 ear04s stoh 8:x*re 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 mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the m:st*n0rx *k48rd ; sej4c :o sxsaqh*origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is t(gw3 mdcgr, bp-+shq1/ 5q w 3asj+dkplaced 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 og(tm d5qcsrg3-j 3+1a /,qkbdhw s+wpn the charge at the origin?

  Three point charges are;f hs,pm*9ffhf )rfew((ec pjm0 -o5xz)c u7y located 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 magn ,- o ycfep jm(m(hffz*f)7p)s0xw r9fec;hu 5itude of the force on the 3.00-mC charge?

  A point charge of +Q+ihlb02kirg / is placed at the center of a 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 agrik l /bhi02+cts 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.qb5cg8:qz; eo o ,hxy(0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5 b5z(h:ceo;8, xqogy q.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 axjj*l 4t06kwnC is at (0, 06ja4xk*l t wj0). 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 azp5vx g*hc) kf*n0tsg/ :lg4v n equilateral triangle which measures 30 cm on a side. What is the magnitude of:ln*sg z40*tv x/c gg)hpf k5v the electrostatic force which acts on any one of the charges?

  Consider point charges oquzo3ls/;zjts(r3p3-) tsc l qo)7 sof +Q and +4Q, which are separated 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 electrostatic3qto3- t uzss s73(rs);o)l jq/zco lp force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C 8z/bkz0 (dxrrrm u23ucharge is at x = 4.0 m. Where on the xx/3u rz(zkr82ud rm0b-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and c41z sh8ukk e2tharge -q is placed at x = 2a. Where can a 24e ksuk8 htz1third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. e9 y;drwlzud19zm f*2 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 againrjqpv6 8r *vdp:/9d r-eb* xfhbli ,l4st the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is th,6r4vdr-8dhfj/ v b: 9p x*l*bp eqrlie proton?

  Two 0.20-g metal spheres are hung-(n8d* ,wk 1q5tg)diyv qstf o from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the an-d*qtt) o5yvq(ni1dwks 8fg,gle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge duhbh9b8z0 - 2ntany.j 0s 5m1qwaw3yof +40e. What is the magnitude of the electric field at a distance of 1.0 m fro29b. azqw8jdaw tn15 3nh0hs y-y 0umbm the nucleus?

  What are the magnitude and direction of the u 0g( cxze bxvp;9igg 9(u1t-uelectric field at a distance of 1.50 m;t 0gc9gpu u(-x9 gi1uxe (bzv from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charvs afvc7,mtd2o a6/3td wn 5,-,rxttzge. What is the magnitude of the electric field at the locationr2t vasxt5a,o z-/m6w7ct,d v,3 dftn of the test charge?

  A 5.0-C charge is 10 m from w w:h 0msrr(zuon6d 4/a small test charge. What is the direction of the electric fiel/:wo4 u6 zr(0mndshwr d?

  A 5.0-C charge is 10 m from a small:4dbgo9 p vu1n test charge. What is the magnitude of the force experienced by a 1.0 nC charge p9g4 dvonb u:1placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separat u6kapg6 v*7 u2w,tu.a5ti hhxed by a distance of 4.0 m. What is the 5k7utuiv,uw * t x2ahh6pa6.g electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4+v7 w 9gu2::2 rkqfxcj5+pv,req ze ow.0 mC charge is placed at the 50 cm mark. Whwzpr :fu7e 2,je+wvq 9qk5x roc+v2 :gat 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 aohl5r ii2l w g(n 0;9/*vegruxnd a -4.0 mC charge is placed at the 50 cm mark. l ;5ehr w2/il9*iur0ggno(vxAt what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 m3,07tzhmrskd 0-9*t;cv cceyoq n x1 sC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnit0,ckv9qz;n cse3omt ydhcx1 str- *07ude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cornerslg1s l2iy*g9 wn3 fxq q93n/kb of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the ceq fn3ly9 b l*qks29g n13gxi/wnter of the square.

  Consider a square which is 1.0 m on a side..vgayc0rr:1 boj; al1 Charges are placed at the corners of the square as follows: +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 fieldlvgr1j. a01ro;y:ab c at the square's center?

  A force of 10 N acts on a z8m vrnho-c f ;h sy**vm+01nucharge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric field0uymv rh1cn8- *fzm+ ;snov h*?

  A particle with a chag srz+1ad3uqcgdw0 :)rge 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 electric field of 6000 N/C 5xui cf9-hc ;jg 9:blnc0-bdpf/3 fkspsf)z9pointing downward. What charge must be placed on the ;-u bcf/9k9l:g)ndx-bpf3cfs sc ip9f z05j hball for it to be suspended?

  A foam ball of mass 0.1506 vhyd ok 3x0s1k++pcj g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, ao+ jp3hkcs0v1 ykx 6d+nd is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a c tuef :.(so igeqi249lharge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from thee io l i9gst:2f(qu.4e sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge ljlj:5uf.4 re of 3.0 mC. What is the electric fiel e:l lr5jj.uf4d 6.0 cm from the center of the sphere?