State the law of conservation of e p zywns19 jd0t-/c9c3u e;ayjlectric charge.

  Is it possible for two negative charges todgldb 4yvmg lm; quo:2+1xe 4; attract each other?

  Is it possible for a positive and a negative charge to p.g+*2 jbf np ron6jr7attract each other?

  A glass rod is rubbed with a pi br3cv89fd5t* gelx yt/co ;1lece of silk. During the process the glass rod acquired f5lo*gxcl/13 vrtb; 8 cyte9s a positive charge and the silk

  A proton carries a

  The model of the atom shop9i:ojw 0l6m pws a

  A neutral atom always ha tn+hk47, xa5jaw s8s ia*o4mzs

  An atom has more electrons thauf8wdk5 /i;rr1tn:y)y / j4 raslr6ean protons. The atom is

  Materials in which the electrons are bound very tigh (norjm454ilyl lcqsvd 007g qh t)2/ttly to the nuclei are referred to as4j s / 2 qg5vt7m0li0doqc)ty nl(4rlh

  Materials in which the electrons are bound 218rh* -vvs7mrap mugn y 1y4rvlgut- (dd(2lvery loosely to the nuclei and can move about freely wmgs lu*tmr ( rn1 -2hry4d2p71vdg-vl y(8auvithin the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bas6z3o/68.qk8wil6 zc5mqp)3zmg n eri c/pifr. The end of the metalr8ofiqp z q 3z6k 68gm.6sn/3ci5l/z )ipwcem bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is nh :+(nvp6sdbeeutral. They are placed near each other on an insulated table. Sphere B is briefly touched with:b+dpns(e6 h v a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an el34, ikdyd2(j+6jbv gwiji s5 nectroscope positively?

  An originally neutral electroscope is briefly touched with a positively ch4z 6bbvin p-y1f*0fpfhgtu2 )f6s n7 aarged glass rod.27bn *)fhgua0in vf164 6 p sbty-zffp The electroscope

  An originally neutral electroscope is grounded briefly cxzp+z *2d k1 fc),d5 rrft:juwhile a positively charged glass rod is held near it. After the 25kfz rd,*j+ctx dfu1pr ):czglass rod is removed, the electroscope

  A positive object touc itkl+ rdjv+p6,*ugwu:(q ;eqhes a neutral electroscope, and the leaves separate. Then a negat6(el vigru+dquq:kpw*,tj;+ive object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object iqmg6bfi8 9n)jwnt 0a( s placed 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 the path followed by the first ball, st8)gbtqwma (96nf0in jrikes 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 thef-yoe.mo. i8n Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lar eb vrv318l4jtger in magnitude than the svl1tr3v eb84 jecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placau5)/d1 j, wr9z ocf tudiq46ged near each other on an insulated tablec15/ irtdw,u j 4qf6d)uozg9a . Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certdu/jv(-6g3y gbmj *y tain force. If the charges on both objects are doubled with no chanut6 -myby(vgdj gj/3 *ge in separation, the force between them

  Two charges are separated by a b9)k 0;r gaaw)s).zsl juj1mb distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3,bg) ul; sz).0sk9raj) m1ajb w what are the new mutual forces?

  Two charged objects attractkl6)qksqt xq*r0q,g4k l -) rb 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 br, tqqs)*)q g 0lq-rk lkx4k6between 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 happens t7*lk1iin, cujo the magnitude of the force on the proton if a secondc1 ,jnu*i 7ilk electron is placed next to the first electron?

  An electron and a proton are separated by a distance o5i oim)xw1z7tn( q9zif 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next toi9 o1w(i5) 7xm tzniqz the proton?

  An electron and a proton are sewsumn 38 ha1bzdc.v1 4m -um*yparated by a distance of 1.0 m. What happens to the size of the force on tdwvcmzun4 bhm.m- 1aus83 *y 1he proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a seconffhur+zc 7j q6yp,;5u nngp 6;)ic kr)d 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 -Qh 6 qnp,kgn rry5iu7+ f);cjfcu6)z;p 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 thol3il,0 riht 2e centroid of an equilateral triangle. When a second charge 0orl i3,2l htiof +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?

  Which of the following is not a vecto7q. bs +yxie0vr?

  At twice the distance from a point charge, the strength of the elp1hd2)b udprm 6,tuq4ectric field

  Is it possible to have a zero electric field value between a zwwuu* )y8i99 6 d3daz/ afx-ldkdx6hnegative and positive charge along the line joining the83ad6d/ zdiwwy- zxx6)u ld u9af*kh9 two charges?

  Is it possible to have a zero electric field value bf*. 1 +mtyxnmgetween two positive charges along the line jy1g.+mf xm*nt oining the two charges?

  Electric field lines near psitive point chargtb5sg:y8bigb v cn) 6)es

  The electric field shoxtfk+6k + )njgwn

  Can electric field lines intersepgms35v.7 qvlr w/u)dct in free space?

  A solid block of metal in electrostatpqb3:lg6rahx0k7 nu01v f mdlj 4e, r1ic equilibrium is placed in a uniform electric fiem1d7,xf6larbkh1jg4lnv 03pe r:0 qu ld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow mpkrpwtm ,nn785n 1e 9metal sphere of equal diameters are each given the same charge, the ep17m enn,8pknm95rtw lectric field (E) midway between the center and the surface is

  A cubic block of aluminod c/kk.jgx2bulfd4/ u(4 )brum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on g4rdd xc/(k2. u)u4kjob l/fbthe block's top surface?

  If a conductor is in electroy2gu g5gg*tycg, ;065 yfovdt static equilibrium near an electric charge

  A positive point charge is enclosed in a hollowy+8e/jh 9jxkt 5 )mrsq metallic sphere that is grounded. As comqmjyj )/8es+5kx r9htpared 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 eq790cbh0 s/m(j zl+ndjfiwa8wq 5dlk2uilibrium.

State Gauss's law.

  The charge carried by on;f51 ap9crcvg.jk4 nu zg)t e1e 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 eleiir5e0/hdqwq v+ lyqxyiku):(2 m h+)ctrons does this piece ++(m)eh lk/xii irw:qqhy vy)q2d0 u5of plastic have?

  What is the charge on 1 kg.nrylj w7+27qghtb7 p of protons?

  An atomic nucleus has a charge of ruy4;l9 /ue*d n.,ttcvvd6iw $+40e$. 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 an)elg 1)csvw *qd -4.0 mC, respectively. What is the magnitude of)sgw* vq1 l)ce the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them i--l1ejvdw(w (k*tlt. ae3ea bs 1.0 N. What is the magnitude oft1twkd.l*-web 3aeeav (- ( lj the second charge?

  Two 1.0-C charges have a force between them of 1.0 8gvai7ppo9)wfn 0gq v99c:m4m m( hhm N. How far apart are they?

  The force between a 28hgw2p+cxz-zkit7 a$30 \; mC$ 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. /rha1d3 bbur zwy8)8bIf they are moved to a newy bah8w3 r8)bd1/urzb 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-axi -x 0a;b6ht)sputy5dz s. 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 p0;z)y h-tts da5u6bxcharge at the origin?

  Three point charges are plaicok4r6(hi5)g mz 2ah:ahwz7 - ro /daced on 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 aozdhg4hiia(6m5wr r :/a7ck-)h 2oz100 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. eexn;+5nkjarqy9 o*;a8vz, ai5jmi positions: Q1 = 2.00 mC at x = 1.00 m; Q2 =yn9 ej*ezok n8raa+ix vj qam55,;i; . 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center ofovw s,t b 5ki-m/0p xk39np.nc a square, and a second point charge of -Q is placed at .nikvnp-xb skm w,cop0/395t 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 = -zp.)ujk)pabs/ ln sx *:b1x6c 1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). W6us./csp:kb pzx*a n x)b1 j)lhat 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 (0, (4.loc3f *noa nesc: c0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC chargen.*c ca4(f oc: n3osel?

  Three identical charges of 3.0 mC are placed at the vertices of an equiciw yf,,fjw 50lateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force whi ij ,f5cwf0w,ych acts on any one of the charges?

  Consider point charge b4ykc3w umigo9aq.(iit9)r+ s of +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 electrostatic force acting on it would be z akiqgt.9irmuci3y 9b w)(o+4ero?

  A +3.0-C charge is at the origin and a +9.0-Cieli:.mbq5h20p qz 7m bz4er/ charge is at x = 4.0 m. Where on thip h zm2ql/0e4 qir.:bem5z b7e x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2as, owv5j(z+3mgt t02a ap* pia. Where can a third positstm, a *jpzatg (iow320pa +5vive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total onwhx) uzz5d / l;uut;9f $4.0 \times 10^{12} \; electrons$ 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 thra4-6 n nn-293u iwr yx*iaxaue attraction of a fixed proton some distance above it. How far abu3w a*42 -xxiu 6-ia 9nranrnyove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncty( qoa 4wty8)onducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until tyatw)yoq84 ( the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +poaay ua3184 khjdl(d4 (fq6w40e. What is the magnitude of the electric field at a distance ofjqk1udp(a836 (y4aha w4flod 1.0 m from the nucleus?

  What are the magnitude and dire/z)s jrupo n qe7i8/0)stk *+,d ihwvaction of the electric field at a distance of 1.50 m from a 5 /+kjhps) rz/8a in0u,tovq dei)*7sw0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thb 7c/ qv hvo:ltu;ew38e magnitude of the electric field eobh:vqwl ;7 8cut/v3at the location of the test charge?

  A 5.0-C charge is 10 5;au;fvfc;y mow: ekoh (2 q;fm from a small test charge. What is the direction of the electric faq;u cf(vo; khffy:w2; ;ome5 ield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitzzgv oogt +hr-/bdhu.cief,v(i+3 6rq0 0+u zude of the force experienced by a 1.0 nC charge placed at the location of the3z -qvo0ivg( + 6u+/ehhb rz.+0ufrc ot,dizg test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance o ( /0m)eeuke/ikfnk 0rf 4.0 m. What is the electric field at a point ku00 (keiek /me)n fr/midway between the two charges?

  A 5.0-mC charge is placed a0,mt8 r1mz i9yj1y bkut the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mar 9 kym uy0bi8m,z1rjt1k?

  A 5.0-mC charge is plrfs tuos;3 z/9aced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At3 9fz;u/strs o 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 are placed kcp+8w m+oc:s at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the poin+m s8copk+w: ct midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.5n1btgv a/* g4i n 7sm38:uqoye0 m. The last corner is bg u a/:7*1 yv ns8ngi3oqte4moccupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Ch5q )o y35 o8 jw4wbh-mwa/wpftarges are placed at the corners of the square as follows: +4.03afw opb q- owjm48/ywwh5 )t5 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 field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placq.02)x -jf s rmfc2oubdb;dm-ed in a uniform electric field. What is the magnitudebd0d 2jm)oqsx-rfc2 fb m-u; . of this electric field?

  A particle with a charge of 4.0 mC has a mass 7tfc*z29 gm0uils5x t 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 pla1f q kh* g* xcxx/brm*fuxf)3+ced in an electric field of 6000 N/C pointing downward.qx* 3 xgrhcf1xfb+xu*)k*m/ f What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a ch-d6p/:sh p toat1sva :arge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of/-d:o6t :p p asavs1ht gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge ofkor z).3rn 0 x:pro7q ce8rp-b +2.0 mC. What is the magnitude of the electric fiekxrpr7 prb 8- 0n):o.ecrz3oqld 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a cixuiz*5r) 5dmharge of 3.0 mC. What is the electric field 6.0 cm from the center 55x *dm)zriui of the sphere?