State the law of conservation of electric charg i;2 smm +ink(9xxj8qhlc4a5be.

  Is it possible for two negative chargexfo:( *x hde,x/on* flxhme.4 s to attract each other?

  Is it possible for a positive and a negative charge to attracprn/p 4(b *ithir33ok) fzajq9aq4:rt each other?

  A glass rod is rubbed with a piece of silk. During the process the gy2ys *p3w* k0ez6j52+ewj jnaf2ooo1 x gu(wmlass rod acquires o gjf1y(5w ep2wjj6o +3w szmkuyn**e 02xao2 a positive charge and the silk

  A proton carries a

  The model of the atom sholf f(sr4j*b x1b5e.sply, z( kws a

  A neutral atom alwayqjyx:89s esnh h:71sds has

  An atom has more electrons than protons. T 8j d*xo hf4+m/v:.uynyaps9khe atom is

  Materials in which the electrons are bound very tiw q 2pvs2r2,submo* /eghtly to the nuclei are referred e2v s2u,2oqms*rp /wbto as

  Materials in which the electrons are bouzl8j c)td:)qt lmh *,gnd very loosely to the nuclei and can move about freely within the material are)hl dlq ,)cz m*gjt:8t referred to as

  A negatively charged rod is brought near one end of aiqg6:i7mc5 hx nqh a;-n uncharged metal bar. The end of the metal bar farthest from the charged rod 5 gahi6 :ch7nxqq-m;i will be charged

  Sphere A carries a net posd163wuegkp (a itive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statem6 p1 ua3wdgke(ent is correct?

  How can a negatively charged7mu0:e e:+qf )x- n mbaoonrm- rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargep+b98 yi v o0gfeq,nf)lnfuihd6/)p7d glass rod. The electroscno+g7 6/9ydnf0v) q fili)bhfp ,pu8e ope

  An originally neutral electroscope is grounded briefly whil3m1xt)dnu p4wmo t-b+ upm:; 9gmjx-ie a positively charged glass rod is held near it. After the glass jxum ;)9o3mpu-p:m xti +mdn1t-bg 4wrod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Thd.3k cph5kbz d/va;2 ten a negative object is brought near the electroscope, but does not touch it. Whaz.kda2h t b;v/5kpd3ct happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutr1j9agpt7 mmxo 4 1m9 d13iq g/n;tbdnpal 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,dp itgx1qoj11mm3a/ n m 4g d7;9pnb9t 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 Coulu3 cg-gdxe na;frk1ac8,x1 - lomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separ*,x*nz2 yusb: mfgdr, ated by a distance d. The first charge is larger in magnitude than the d,*2gnum*z b sx:f,y rsecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eqc3r wy:e7r7mx e,xkzzf9 g8 .ach other on an insulated table. Whichxz:k yrx 8 mq3e79ecfwrg,z.7 statement best describes the electrostatic force between them?

  Two charged objects attract each othmue(0,vqv )2/umcp ci er with a certain force. If the charges on both objects are doubled with no change in separation, the force betweenm( m ec,viuu/0pc)2q v them

  Two charges are separated 0-z 5p6vd0 cnpdq ok 3sf,cyo/by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forc0-/ykd opcs0v,c6dzfp3 qo5nes?

  Two charged objects attr u ksq 6lpcw6d02emc.9e*e 8vzact 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 between their cen0mz6qv c*e 2k.ece 69sl8wdp uters is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distancewk1 h.(iryri cb5.j7g of 1.0 m. What happens to the magnitude of the force on the proton i c(15ij 7iryk.gr.whbf a second electron is placed next to the first electron?

  An electron and a proton akbw qx-q ox0+ ,:m/9:xkot dfare separated by a distance of 1.0 m. What happens to the magk+ -tqf dwo9xa: mx /kq0:b,oxnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m.v 4xwv9l zp4eb;),(z tpa*gjm What happens to the size of the force on the proton if the electron isv,pz4 94 ) zt*pgjlb(;vwe xma moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square.osbm(v 8 te gbsp 43j)do86)rq When a second point charge of -Q is placed at one of the square's corners, it is observed that aj) brt6)s(e8mqo 4 8vsg3dpobn 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 sm.k-n1kw os6.csn -zplaced at the centroid of an equilateral triangle. When a second charge of +Q is placedk 1nmsoz ks.6cswn.- - 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?

  Which of the following is not a vect lv*u8 ilx v7m.p mo8wrker-3m8 z3pi3or?

  At twice the distance from a point charge, 3d svf6oq /gw;id:/k ds,qgf4the strength of the electric field

  Is it possible to have a z)0tlg 12j ang.tpd2 koero electric field value between a negative and positive charge g.g0 l) tpo tkaj221dnalong the line joining the two charges?

  Is it possible to have a zero elecbo/v)6kpo6g.h z5 ia w b1vz.ktric field value between two positive charges along the line joining thepvbog k/h)6.bvwiako5 z6z 1. two charges?

  Electric field lines near psitive pu:z 4n93 l wykm 74mwnqle7rb-oint charges

  The electric field shox2 v0bkpl6m3hm tb21qhj1c) own

  Can electric field l- sb55pes0xlbsnv 6(dsr*dr8ines intersect in free space?

  A solid block of metal in electrostatic equilibrium izvgq 6)tx -ne/s placed in a uniform electric field. Give a statement concerning the electric fieldve)n6 g- x/zqt in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eac(d, d8 :mcc2hzc - gh.iahrak(h given the same charge, the electric field (E) midway between the c2d m hd . -gkh(aachz8:,ri(ccenter and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform whox l/)/ida5l*ht4 c electric field is directed straight upward. What can be said concerning the charg i 5cdlawlo)/h/t4 *xhe on the block's top surface?

  If a conductor is in oq(yn15gxv;0ffs1 2r than4 x electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic ssrc7bk/wu;u an)jff 3 )9vzn0phere that is grounded. As compared to the case without the hollow sphere, t)b)s vwr7/kznn0 c3f; j9 uuafhe electric field at a point directly above the hollow sphere has

State three properti(7r ct(m:iqdwirzbi8 c7k y(3 rkd0j+es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one gzb4t1m1:p a welectron 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 thapc zhmp/5*eknop5 .3r-xv2u jn electrons doep5p*cx.h 32j krzop/ue5v -nms this piece of plastic have?

  What is the charge on 1 kg ofv0,bd4va,avl 9nsm s ,x3ka q+ protons?

  An atomic nucleus has a charge of j j/cc+ qmiou996z8kqe3 vg5e$+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separg:: a6fk lf7egated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force bee:lg6f: k7gfatween them?

  A 1.0-C charge is 15 m from a second charge, and the fo0 jhbtwxaq i058a +uqa3ig6t7 rce between them is 1.0 N. What is the mttqw 7i+ xabjigqh3a050 a u86agnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are th 0oi-z +tr 8rv2r)m/yu5 rdlecey?

  The force between a t omy8a(rxyql -qq9 59$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force. If th3ctnn(-ob+got:q y ,op. dbv4ey are moved to av(y onbotb.4t ,o-cdpqg3+ : n new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on th)k4jok2d 4e5 )4-rk jsqdfp hhe 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 didf-5h e)h 42krok4 j4)sdpjqk rection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed onru*oo.lm 02u9alerx2mp e 38r the x-axis. A charge 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 t el2pl3meu08m 2r *aox9.ru orhe charge at the origin?

  Three point charges are located at thyog. * :2r .vkap l.fdx56 bcb,jm+yhae following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at kxhvy 5*yrab.g,o.md 6:c l. a2fp j+bx = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Ql+h odzqu*4g + is placed at the center of a square, and a second point charge of -Q is placed gdloz+* q+uh 4at 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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 (ze3nks+ uu5nyig plx *;s* c5m); Q3 = 5.0 nC is at (0, 0). What is the magnituiyl3zx(55 u nk +s *ncgs;eup*de 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, )91ak vj(yjq b /cfyvmm49+uk0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dir 49y1 qu9kv)y+jc(mv/fkmabj ection of the net force on the 5.0 nC charge?

  Three identical charges zmg inyz.d/9ckwl / 37mcc/0u of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of tdzcu/y lwgi9/z3m0 .k 7cncm /he electrostatic force which acts on any one of the charges?

  Consider point charges of +Q ana fn-iorakxgg cj:oxo.arry135 +-21 d +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 tn--5og o ar ic+kgaf1xra1x :or.yj23he 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. Wnmx 0yjaux i*grhl (e-(f) ,6l2ms0pihere on the x-axis can a third charge be placed so the ne(ini0- ,(0g ur xafm26ph jxll)* smyet force on it is zero?

  Charge +2q is placed at the origin o :pxo *0 tq6ch8oojo6and charge -q is placed at x = 2a. Where can a third positive charge 6*o hpjot0 ocxq8o:6o +q be placed so that the force on it is zero?

  A copper penny has a mass of 3pfs :rovu3* 9x0t8fv w.0 g. 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 ghll / m3;xd)qz;1j jkcravity by the attraction of a fixed proton some distance above it. How far above the electron is the proton? ; mcjx;1)khllqdz/ 3j

  Two 0.20-g metal spheres are hung from a common point by non07i1b xar x4puz k.ho:conducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repbix1 4o 0 zhxk:.pra7uulsion 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. u z7 3vj8ylu7if85up b What is the magnitude of the electric field at a distance of 1.0 m from tibzy7v8u5u8pj7lf 3 uhe nucleus?

  What are the magnitude and direction of the electric field at a dq 2h8ce nyd;lt9) 2gsxistance of 1.50 m f92xql dc n;8se)ygh2 trom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the ep1tpb8k-6 t29bacfv0b +qoe l (6jfqtlectric field at the location of the test charge?tftlkbj q 9oeb-ap(cb t pf81v6620q +

  A 5.0-C charge is 10 m from a small test charge. What is the direction o5sl+ z:e04n o3mf uiizu1i09drvw snsy6 + uj5f the electric fies d u6 +ovu4+:lf 9eiir 105n0zssm53jnuyzwild?

  A 5.0-C charge is 10 m from a small test charge. Whahu lj)h xa7*p5s0ly l/+spl5ft is the magnitude of the force +0/huy7 flh5xsj ap)*l l5 pslexperienced 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 sepaeuvum+rjpn 2wd yj0t- 4*-u-orated by a distance of 4.0 m. What is the electric field at a point midway between the two char--04uv2+dyuuw *n-j toe pmjrges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chargq7unlav-d9p h+5v-ju e is placed at the 50 cm mark. What is then -jl 5+vqu9 hvd7p-ua electric field at the 30 cm mark?

  A 5.0-mC charge is placed af7,vk*p0 y:fq+ j g -0vlqpuzut the 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 the elect+ up0y7:f0 jpvuq k-qfvz,g *lric field zero?

  Two point charges of +3.0 mC and -7.g;(x5 1tm,6ws rvzfzn. imtq+ 0 mC are placed at x = 0 and x = 0.20 m. What is the masz,.gttxrm; vm(wf n1 + qi56zgnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the threepilflv+4p6 q ,,nxubkv (0x-x corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field a,0u -x(kbv xf,xpqlpl 4n 6i+vt the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners o j954mobrcp n(f 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 n jb4c5 mpr9o(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 itw:,fp x:ik6q -eic.g iuv7t,t is placed in a uniform electric field. What is the magnitgtip :t-7eivkcwq fi,, : x6u.ude of this electric field?

  A particle with a charge gbha kue.0hm5 7;0(hutyo9t lof 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+m6ls4fjxvfi s741we 6000 N/C pointing downward. What chax+ ls 76fi f41vemjs4wrge must be placed on the ball for it to be suspended?

  A foam ball of mass 0kt) b9d/4hg:c;bg zug.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform eleg4ub t)z9 gk;c h/b:gdctric field, and 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 charge of +2.0 mC. What is th7v7w hhzen y)3w8crh2-udcj: e magnitude of the electric fiel-h832duce )hw zyn 7jwr7hcv :d 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 electry0(kmb/yyh 5mm*xf+)qm f f ;78tttaaj -dwf4ic field 6.0 cm*hkt(7m/w0 - mqd ba)ty yfjf+ ;f tyx4fam58m from the center of the sphere?