State the law of conservation of electricz0:ud:vthth;3 c ztftaq9a 8 5x/+dsc charge.

  Is it possible for two negative ( 3 1lyiz 2* oe0qwd ducd2dpd/4ihre)charges to attract each other?

  Is it possible for a positive and a negative charge to attract eacht ar cizs tpyn13c4(j:l-,sn ( other?

  A glass rod is rubbed with a piece of silk. 1r:or4l vey jl:d(kfa20) gfxDuring the process the glass rod acqarffe20vk:(olx d :gr4)1 jy luires a positive charge and the silk

  A proton carries a

  The model of the atom s yoyy4 7b8xo:5.dkjv chows a

  A neutral atom always h;yo f4r 4 o8i:ssu;b 6tnqox-was

  An atom has more electrons than protons. The atomk fpxfr hh6,fu55o b)1 j8 kwx98jrxhen;o9,h is

  Materials in which the elee :gsb dql;0og tv(o6n, a3,gpctrons are bound very tightly to the nuclei are referred p3b,d vn ga gs:,6oeqot;(0glto as

  Materials in which the electrons are bound very loosely to the nuclei 4xl5bm4-si 0* wkjm7ukae wr( and can move about freely within lmje 4*(ix5u7 -kr0m w a4bswkthe material are referred to as

  A negatively charged rod is brought near one end of ab )*p eieu2h4tp ;(jtmn uncharged metal bar. The end of the2(b)u*jt 4ep tpi;h me metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive ch 8 0bi1;s1 eddatin hud;l3k9marge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that m1ndu8sah;9b3kileit0 d 1d;is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positivebxg6 b70.ww xus/d-tgly?

  An originally neutral electroscope is brieflpmln9nkm w56tta6 q165f 6n (r;ubldvy touched with a positively charged glasnlnl96m6fr6n5kq;b 5u w tda6tpmv1(s rod. The electroscope

  An originally neutral electrolizrr,a n1l)2scope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electronli1 2,a)rrl zscope

  A positive object touches a neutral electroscope, and the leaves separate.ni6jdx) w5r2x+ey t 2f Then a negative object is brought near the electroscope, but does not touch it. What happens to the leafjd) xw56nytx+22 i reves?

  A large negatively charged object is placed on an t*y z djpanj6689wvd0 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, 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 n tzdjad96v6j*p0y 8wnegative object. What is the final charge on each ball?

  Charge is

  What are the units ovh,j irzepj g5 ;q/vocp5f.2+f the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separateddo mqu2xk7*4 j by a distance d. The first charge is larger in magnitude 427o *xjmkqud than the second charge.

  Sphere A carries a net charge and sphere B is nex* 9v qsuej23 *efyub2/g5medutral. They are placed near each other on an insulated table. Which statement best describes the elec2jm9u*ye gfe*eq/vs5 2xdbu 3trostatic force between them?

  Two charged objects attract each other witfbx5h8mi- 9j 9wvw q)yh a certain force. If the charges on both objects are doubl5xjb 9q8) h-mf9vwwyied with no change in separation, the force between them

  Two charges are separated by a l:g enhlq2db zs -** 2k)txp-mdistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of **e2pbs2)hlxn-mt lkzd-gq: d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Wnlo25178u0spx uc3yhz* ku 7tos 2jvohat happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between t z*u2p1cv8sonyt0uxl 72 5 sk3uj7ohoheir centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated b s *id,a21pjfhfw(w ,.jf g,jmy a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first eleijp.2wfjd , ja*1fg h,,m( fswctron?

  An electron and a proton are separtxf5 t i7ca++3w7ei+2rry1q qkv r*p92k cpwoated by a distance of 1.0 m. What happens to the magnitude of the force on the first elec51i7cir7*+fqqt+pop 3kx ra 2yk+e wc 29rvw ttron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. bs-w 05vu,ghlo zm2e , What happens to th -2 o,0zsmuv5wehlgb,e size of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed aoole+nd6;3q ujo 4 vbd. gk0i.t the center of a square. 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, iden.j6i.b;kqg od 40n3ooev +lud tical 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 8eiybfu4 .pu(-wh +.b;x k oqwan 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 acts on the center charge due to a third charge of +Q placed at one of the otherw.kx.- b hbu;yfo+(ipw4 q8eu vertices?

  Which of the following is not a veckps89zsq u hl4 6cx00kv,uzr +tor?

  At twice the distance from xu 5 gds;,x5dba point charge, the strength of the electric field

  Is it possible to have a u. h)pd.wl5 f wp7p((2iq8h7r u7 vlxbzf.nnjzero electric field value between a negative and positiv7bnp7 qipuw5 .r8 p.hf(xlw7.l)h (f 2znduvje charge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positic2mkm7)mg*qtu iam 1 5 ytgl)0ve charges along the line joining the tw cgq ytt1)m*g)75ukammm 2i0lo charges?

  Electric field lines near psitive point chargdtr5bw f2 /r.7 4xv)oevycm, ees

  The electric field sho5t6b.2hdo3 v15 rj3ecff q 27siocskr wn

  Can electric field lines intersect in fr).7ruqdyhw*fpe( r . ree space?

  A solid block of metal in electrostatic equilibrium is placed in a uc iakul 08t.f2niform electric field. Give a statement concerning the electric field in the block's interii 0l8fukca2.t or.

  If a solid metal sphere and a hollow metal sph34rgxe,t(k *eeesb oz(clp ,.ere of equal diameters are each given the same charge, the electric field (E)ee3l ,s*krbpe, (g. (4ct xoez midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform rxw)m,pdxkx4:us z , f(6sl8ielectric field is directed straight upward. What can be said concerning the charge on the block's top slfx4x)rsdi,w u 8m,px( :zs6k urface?

  If a conductor is in electrostatic equilibrium near an elect1a0 7jbliltn)t :rrxx3 .)kpiric charge

  A positive point charge13tf8:u*b /z,koelu dv +ct ir is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abo8f*lb3ek ov+zr1uu, cid t /t:ve the hollow sphere has

State three properties of conductors in static equgbps3 x4s* hk+ilibrium.

State Gauss's law.

  The charge carried by one electrbmj*dyn4jf61(jyt) eon 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 mores38d7 dbkk,ov 1 u7xf b(izs(l protons than electrons does thib( 3fvsk7u71dx,( id 8l zksbos piece of plastic have?

  What is the charge on q-ndg *s n/bwx)-o0c e1 kg of protons?

  An atomic nucleus has a charge lg:(u .3pyteqpf,u,oof $+40e$. 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 2.0y*jcwsl+ j )bf:5y(t;xequosh kxm/ 1*l49ks and -4.0 mC, respectively. What is the magnitude of the electric force between them?t khufkbwc lx +4( 1eyj5 qlm*osy 9;:sxs/)*j

  A 1.0-C charge is 15 m from a second charge, and th -vkhv 8*d(c4,up yali(zg on3e force between them is 1.0 N. What is the magnitude of the secon438z*(k(piu vvoag-nc dy, lhd charge?

  Two 1.0-C charges have a force between them of 1.0 xo6u4myzv+ eeyn:((ulq (:/yqvon(wN. How far apart are they?

  The force between a 9c) qxoq4 eps2 ,vce cw;ez,:u$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0r 8au2024lhu3t fqpknvus 2+ep :cp(j cm apart, experience a 1.0-N force. If they are mtuclhfujs (r4q+p :pv a23kpn802eu 2oved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 2.ynv1 l.gs1fhtm42mmwx- vf mC are 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 fog1th 2m. w x2m sylvv-4mnf.1frce which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed1d ehl. 56ywk+uta dm 3ti1+cf 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 electrostaye6hl5t+ aku1w3 .1tmddif c +tic force which acts on the charge at the origin?

  Three point charges are locate 9bt)f7+spr0pxuy7 wbd 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 magnitude of the force 9btwp0 r7 b+yf7x)psuon the 3.00-mC charge?

  A point charge of +Q i;d4jc.n kgz-uxa0 g;7bwl8uzx5 iy ; fs 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 acts on the center charge if a third charge of -Qf8i ;xwbzugyc 0g4ln7x uz;;jkd-a .5 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 m); Q3 = 5.0 nC is atg)jttxvgtp 00a zz3(f*,evzqv9 bb t;00e-rn (0, 0). What is the magnitude of the net force on the 5.0 nC chargvbt( vn 0v90zte; t bzx*) fjgrg00pzaqe- t,3e?

  Q1 = 6.0 nC is at (0.30 m, 0)4skrqdu,,w f41nrmiys9 j.ek y vr;/vu0m t.3; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the netrk9f y.y;uw1d,3emqruiss / v v4r4.k,0jn mt force on the 5.0 nC charge?

  Three identical charges ofe;epbob0xo7 o;ubs +3m +it*p 3.0 mC are placed at the vertices of an equilateral triangle which mea u;osobtp 3;e+ +ox0b7be*mip sures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated bvlzd5ex(*:1*s b jvmu y 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 the5dv*j eslm*z :1x b(vu 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 = 4a9p0m 9l 3/nf,hvcrjlv.e y3e.0 m. Where on the x-axis h9vleav/mc3njr e 3p fl.90,ycan 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 = 2a. Whqw6*b*jina 7gzw9ys1( u7 k xfere can a third positive cg*1 7 f*yikzwx7jbnu69 q(saw harge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3q)+(l9lotrs kbpl4(k .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 gravity by ts /twzr-e tl4(he attraction of a fixed proton some distances(-/w 4t tlzre above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung zxcdznqs7 n(h0673 v24d m niufrom a common point by nonconducting threads which are 30 cm long. Both are given iden 77dn2h3m(c nixv4 zqd6z su0ntical charges, and the electrostatic repulsion 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 ; .l2e7)jzsvvju.vgpw0cc8b c17 iu dcharge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucleu;pd ji.c eb7zcg7vw).2vls81vcuju0 s?

  What are the magnitude and direction b*y9s 3-7 qmfctv f+ k9zfp4veof the electric field at a distance of 1.50 m from a 50.0-nC charvpt9 e7vmy f kczs+4*f b3-fq9ge?

  A 5.0-C charge is 10 m from a small test charge. What rea(8ljo xsi;r)d4 h2is the magnitude of the electric fielahr ;()e2j slxdoi r48d at the location of the test charge?

  A 5.0-C charge is 10 mpqa(s68 u/pcg4x)+. jqf xito from a small test charge. What is the direction of the electric o( 6/8q.ixxq actusgf )+jpp4 field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the f rv.fl*d* fbu0ey9n-6ym euk. 0tf5v4mz ;xsq orce experienced by a 1.0 nC charge . d4 sm ;ex*9ybfl0t.qf yeumv0*zu 6nk5f-r vplaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and /x. +ues iul(bhh k1a;are separated by a distance of 4.0 m. What is the electric field at a point midway between ;h(.s /hakxbi+1leuuthe two charges?

  A 5.0-mC charge is placed at the 0 c*d a (ubo(q9 dp:)sighrjunt 7d0i6a 3m mark of a meter stick and a -4.0 mC charge is placed at the 50 cm i:q hpa0* t(i9)ud3gr(nsu6b doj7d a mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is pln burj6a+- - 6gxv)jfiaced at 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 th ujf-j)ingv-+ b6a r6xe electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. Wh wgy*5 0vytfv:at is the magnitu:tf5v0yw vy*g de of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cu-pkh tk ty0)7) toat3orners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electrikk-u)37o0 )p ayhttt tc field at the center of the square.

  Consider a square which6idgdd :5j ahw /ht*zbn3+ym6 is 1.0 m on a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at dhndi5 bthmz 3+:jwgd*6y/ 6a(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 ;q-k9sdymnv6h q+s bu 2v, 6applaced in a uniform electric field. What is the m6kpu6s2qs9q-a;by +nv mv,hdagnitude of this electric field?

  A particle with a charge ec c5taak m9id4b(25xhv -)owof 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 i5)zfi 0vmbt5 us placed in an electric field of 6000 N/C pointing downward. What charge must betm0v5 z)bu5i f placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of s)bf7 jutc96t-2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force oft 6fbcu)s7j9t gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius6 )yx5xi zd2kss(s0fz 10 cm carries a charge of +2.0 mC. What is the magnitude of thes)56ix0sxd (2zy sk zf electric field 5.0 cm from the sphere's surface?

  A metal sphere of rad+hp1l qklwv m91;nku7ius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from thew9kn 7m;1+pq uk vl1lh center of the sphere?