State the law of conservation,2.6inouufg t of electric charge.

  Is it possible for two negative charges to attrac1i 1iw;v3lt6hp tx1 jzt each other?

  Is it possible for a positivvu. 2wga 2gn(.c nfn 2j.cs:ube and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process th:le uz sbcd-u.*2fuy5)iteanqf 6yy /b(h:a, e glass rod acquires a posc, za:i fn-u)eudb 2:/u6f yy.absqh ( y5elt*itive charge and the silk

  A proton carries a

  The model of the atom shows auv*k 077c7tr:c ckiz3 q gs58kn0upg a

  A neutral atom alway++vb mj+ nszi6s has

  An atom has more electrons than protons. The ato2fs h2yee,l,hp28 kr le2g)e;6 yzdvw m is

  Materials in which the electrons are bound very tightly to teywjh,c y ;hhhp1q3.: he nuclei are referr:.h 3 ph,jyy;we1chhqed to as

  Materials in which the electrons are bound wf ks cfl6z5 /u.-oo+dpsr *h(very loosely to the nuclei and can move about freely .oz*/ s kodh6-f+5lrsw(cufp within the material are referred to as

  A negatively charged rod is brought near one end of an unchargw7,kdy.:eqkjivp +q y1o )8jy s3 iou:ed metal bar. The end of the metal bar farthest from the chargedq ki+d :jiekvs.y 31oypwq)7y8j u ,:o rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They arnj+, vve8p1gk1c cxw pp3 pnxy+ow/);e placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement ixxp1v/ok)c 3p1ygje n+pw,c; n8+wv p s correct?

  How can a negatively charged rod charge an electrosco ctj(wqw /8wl7fnqt+ 4pe positively?

  An originally neutral electroscope is briefly touched with, *fk)iro0xal5;s: xuu5opwl a positively charged glass rod. The electroscwu )0a5,sx* ko5flrp: olx;ui ope

  An originally neutral electroscope is groundedn :kat quob3.d8mp0:r briefly while a positively charged glass rod is held near it. Afterp :8botd:u0q aknm. 3r the glass rod is removed, the electroscope

  A positive object tosoxs udv :.7f x.z7d*wmc/. ms4w+jqsuches a neutral electroscope, and the leaves separate. Then a negative object is b w4*fzs 7 .:mqowx. cjms7usdd+.svx /rought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placeda m -l8ij2eq7a on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along theajq2 ml e7i8-a 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 Coulomb con am3d,m+mv x(bstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firsjwrr6qx1 t)i89 + i-zpfrrxj8 t charge is larger in magnitude than the seco)q8ir1j-p 6 ifw89xrj+ rxr ztnd charge.

  Sphere A carries a net char;99ie xo5)fu*v e0qsip. lzz cge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes thf is 90xl)czequz p.oi*95v;e e electrostatic force between them?

  Two charged objects attract each other with a certain force. If 1cf6.io mqvdc1e;,j iq1k sa2the charges on both objects are doubled with no change in separation, j ifv12ocq1a ,m eq.s;k6d 1cithe force between them

  Two charges are separated by a distance d and exert mu1d+ah3 rtlk+m tual attractive forces of F on each other. If the charges are sed+lakh +m3r t1parated by a distance of d/3, what are the new mutual forces?

  Two charged objects attrad:x:ce--d a, 5hcscuhct each other with a force F. What happens to the force between them if one charge is doubled, the othd :ccch5eh: x,da-us- er 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 protqne*s4i o0rdmxa0, . y t+qp3xon are separated by a distance of 1.0 m. What happens to the magnitunos0a e pr+t,4* xqq0xiym3d.de 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. What happens thjdllo7 vfs , +)f2;yno the magnitude of the force on the first oh f7+nf;js,dvl2 l)yelectron if a second electron is placed next to the proton?

  An electron and a proton are separated by a di6/f sgq wbb4l. tzz16h /ixyl8stance 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 protolxqby6iwhz / f41g .z6sl8/tb n?

  A point charge of +Q is placed at the center of (gnv2 l9 l8xwlg(b 8cma square. When a second point charge of -Q is placed at one of the square's cornmn(9g l(8bwv lg2xl 8cers, 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 d z7n,gpsjowr -i* gd e+m:6 rz(7p+bfequilateral 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 vertices? prdrg opzmb*:g7e(+n6+ jwi fd7zs ,-

  Which of the following isx)het8iv7ck8 not a vector?

  At twice the distance from a point charge, the strength of the elecf vl6ljlk:xh* ,fl: 6btric field

  Is it possible to havy4qg3-p(mh5 yf ,wbq ke a zero electric field value between a negative and positive charge along the lm5 ,w(ghqbyf 4q-pk3 yine joining the two charges?

  Is it possible to have a zero electric field vd r9/ias9 hojnwv,w1,.r c:of alue between two positive charges along the line joining the twoia cfvor1.o,:h 99s dwr/nwj, charges?

  Electric field lines ne3dfqs f ofk-a( pyv8/.f9 lyo1ar psitive point charges

  The electric field sho6z- p cjr9fjqu6v72pywn

  Can electric field lgt,t5swee*8hdfx)f5x91avt 9m gn-p ines intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ert4c:9ukx ffd m,6 -uxlectric field. Give a statement ctx dm,6f4-ufc9uk:rx oncerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eac tbj1ce-5udo5h given the same ce5-bd u 5oj1tcharge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifb2 5dc8nmz;gnt 2wb y(orm electric field is directed straight upward. What can be said co2n2t(5b8g wdmczbn; y ncerning the charge on the block's top surface?

  If a conductor is in electrostatic+ze ;pb;i7sob+b/s 3i8n ci,,rlczu b equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is g bq+ a -*kjx*puj/d(shroundedu qjdx/-phj+ *sab(*k. As compared 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 equ sph j5k8pt9/silibrium.

State Gauss's law.

  The charge carried byxn. h4sjnxlm*vl 5 )7n one 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 eyzgqi3pi1yp *e) + v9eg9p)cdlectrons dz3+p*ei9p))yiyv1eq9 gdpg c oes this piece of plastic have?

  What is the charge on 1 kg of protonb(v p uz4w).l+ytcfp/s?

  An atomic nucleus has a charge s6u,awf.crx 0of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separate863hseme)0e,jchdb p q80fgud by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. W0 h8 m8du3 p e,ege0qb6j)fcshhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force fxn6* ;zz gj-ybetween them is 1.0 N. What is the magnifj- *nz; xzyg6tude of the second charge?

  Two 1.0-C charges have a force between them 9 zx)i xihsd7-ig:vg5 of 1.0 N. How far apart are they?

  The force between a 6xo;:t)4z)1i9 jtz)vijgf fr;hi9rivqfc( q$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experie2t* cr6x ta- xlm: v6dd:5cpr coa21gsnce a 1.0-N force. If they are moved to a new separation of 8.0 cm, what xt2 ovc-1xc6d atpr m r*:ac6g52:lds is the electric force between them?

  Three identical point charges of 2.0 mC are placed onc.3we8(a/z ylz n2 .n i 6-g(mglrmuxdblhu36 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 forc(bw6c36l g -rz h/uyzla8umd x 2g3ine.l.(nme which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC fj g8l2s1woe5agpkcr5+ 87el y 5yistg6i( 7zis placed at the ojg iik8 r s5l8eecgyo7p6 5 s1g+y 2a(f5wtl7zrigin, -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 = 2.00 mC at x = ;bsljn71ex7 yd,:y8l*a jxbm*kd jp1 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnixk7ed*s8 dj1pjl: b*7n xab 1yj,l;ymtude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at pxx: qlkqhpwfpm)7 yn) n,m17;*emlyv8 j :y2the 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 acts on the center cha:m:yf8 1n)xlq)h2 k7p j x;mpv7n lw*y ymq,eprge if a third charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q/gz mfldma65z 5mus2nl.c; ,rbn ,s s.2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0,5sg.52/nmdszrlm;cb .n s a,l f6mzu). 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 m k1/5h22qya oxhxs9c (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is 2 a m x1oksh2x5qyhc/9the direction of the net force on the 5.0 nC charge?

  Three identical char*zt* r15 zclqiges of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitud *1i*zl c5rqzte of the electrostatic force which acts on any one of the charges?

  Consider point charges of bdy( bf:sfk.) +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 (.s:)f df bbykcharge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origi:0i .v* 2 1luwy,olzg0:rrm8o esoqxzn and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third chszmo ruy r wq:.gxzlo: ei2 o*0,vl810arge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x =ymo; prn-jb.z) l1rn1btk 4r : 2a. Where can a third po tz:)ol;ny1. kr1jprnbb-m 4 rsitive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. nb ioec./z/vl 9 jay4l ojd 2(/wvxw8.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 gravity by the attractio,-zod lil4,u -wf1ld qn of a fixed proton some distance above it. How far abovozd4,fql-l,iu w 1 dl-e the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threadsbrhy-: jk+6/mpzkg h+ which are 30 cm long. Both are given identical charges, and the electrostatic repulsion fm hjb+r6-/:khyg + kzporces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a+;k e5)gu pstl juf(+c charge of +40e. What is the magnitude of the electric field at a distance of 1.f+)c (ueku ts5;+gj pl0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dis +/ omsby;yy+ltance of 1.50 +s yoblm/;+yy m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude o+a8 jc ytz15suf the electric field at the location oj u+a1 yst85czf the test charge?

  A 5.0-C charge is 10 m from a small test charge. Wh.:j4ms* f6 -o*w v2ev kpitletat is the direction of the elwol ei*vfvtp*-mts6 :e4 kj2.ectric field?

  A 5.0-C charge is 10 m dv x3h4kp n *vqh58qftfg/ 8d:tqql73from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location ofql4vfp qfqt3h7g3t d8 *q 85kdh: /vnx the test charge?

  Two point charges eavca m))0*w (voct1wd,x lk9lr ch have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charg*(kvc t, m 9w1w)lvcdxol)r0aes?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC xkbs1n .fd4bau5ng )- charge is placed at the 50 cn.sndk1)buab f x-5 g4m mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 f( mpzx+oz g-h;i* x5dsm(x.ardhu: 3cm mark of a meter stick and a -4.0 mC charge is placed at d;zgofa *s5hm( d. zux-h+xr: m3(ixpthe 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 are8n9g( wqw4cy 20se bjq placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between them?0qbw w4qcen 28(y 9sgj

  Three 3.0 mC charges are at the three co(og j++2 tripsrners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field att rj2i+go+(sp the center of the square.

  Consider a square which is 1.0 wk9kp,rfkn2hwc n1 .2m on a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 f2w.9nh , nk2wkk1crpmC 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 chargeedxgl o:)hkd/)xhi ) : of 5.0 mC when it is placed in a uniform electric field. What is the magnitude:)l/ ogx e:)d)hdk xhi of this electric field?

  A particle with a charge of 4. nbyk fl03r3zm u61 (mz+zahe/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 p2z2t r0 rzfld,laced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball 2f0dlzrtz ,r2 for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Thebl90db0 id se. ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric desl00 .9ibdb field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the mao 6m4 qi ypwhoz*(9)-auycw4 ngnitude of the electric field 5.0c9-wh64on pi(y yom)*uwzq4a cm from the sphere's surface?

  A metal sphere of radius zns3mpfr,f 64 x8tmv;2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the spherrvsfmmf z6n3; 8p, xt4e?