State the law of conse1bg jx5zpmipjv2l a .p3(r -)hrvation of electric charge.

  Is it possible for two negative chargesa55u in/v0h4 fass f13qea-ch to attract each other?

  Is it possible for a positive anj2x3s rib5/:+kco qbl d a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the pfi(:d7vkd j.k 7oc c0krocess the glass rod acdvik77(j.:0fk kc do cquires a positive charge and the silk

  A proton carries a

  The model of the atom su(ao1 lm4d9m5ypfp)j 0ef d*whows a

  A neutral atom always:z4(6u gmmqw8)bh col has

  An atom has more electroyy jlc sh6uq5+5 efg q:7c ats)2eu92lns than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are r9 z mvlc;/djh*eferred tovl9d h*cz/; mj as

  Materials in which th-yxlcnu+l *b7 u d3yg 4i9kgv)e electrons are bound very loosely to the nuclei and can moveyv -g9u 3nyd)xll guk*+74c ib about freely within the material are referred to as

  A negatively charged rod is brought near one enx7z-g , s8amund of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chargs7-u,8ax znmged

  Sphere A carries a net positive charge, and sphere B is neutral. They aczibbnf0c)zdu dth2;b *f;/ 2re placed near each other on an insulated table. Sphere B is briefly touch t;d2db c;i*nbzc0)/hzb2 ffued with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroxxloj:63 lhkk9,uc 3yscope positively?

  An originally neutral electroscope is briefly touched wi544up (nipm8xo5 o(,i mfmbxqth a positively charged glafu( 5 mp44n xi5xm(oimqp,8 obss rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively char.( c+l,aa9 ;0kyockrgzvvwe s1b p0j,ged glass rod is held near it. After the glasv+jc9 lboakp,cg .a w;z00k1 s yev(,rs rod is removed, the electroscope

  A positive object touches a neutral elec 4mq:x1xsg jt.jk4nh *troscope, and the leaves separate. Then a negativ :jsk.m 1 *44xjgtnxhqe object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed o9osvg 1np147cs*wxk fn 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, 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. Whac v1go fxps 4n17k9ws*t is the final charge on each ball?

  Charge is

  What are the units of t 9zeccszlwfn 8 c8354bhe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are sepaky3qzk4n)qo,/hq- vyrated by a distance d. The first charge is larger in magnitude than k4 yqz )vn/-hq3,k qoythe second charge.

  Sphere A carries a net charge and sphere B is neutral. The8:dw 5az f6 woszhcq,+y are placed near each other on an insulated table. Which statement+f 6wzq,5cd: waz s8ho best describes the electrostatic force between them?

  Two charged objects attract each other with a qfr1 jplot2);certain force. If the charges on both objects are doubled with no changejt1rflp 2; o)q in separation, the force between them

  Two charges are separated by a y -2hc1sdv w+phj f44ldistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are th4dhlcf2swhyp +4v -1j e new mutual forces?

  Two charged objects attract each other with a force F. What hw 6(n 6nmk4dm;wl3qpoappens 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 3nmnwq6;o l(6dwm k 4pequal to

  An electron and a proton are separib/d7q 4 )i5-zesn++c3qkmi htdj m r;ated by 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 elet q); hzm/r73+msi-cb4ke q+d5indji ctron?

  An electron and a proton are separated by ae blf4ouk 12 qo+*6cml(h/d qyl-,jhj distance of 1.0 m. What happens to the magnitude of the force on the first electron if a sejlu6e4+d-yfohk1l jh o(qc*q ,b 2l /mcond electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1 ycassvl,oqe6h-4(9sc h b/d 7.0 m. What happens to the size ofsyc,lc9a hesvq47s o6-bh(d / the force on the 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 second powrc gr ((ect+q7u x b*aoz-d99int 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. Whrdc 9+c*e7qa(-wugb ( 9 otzrxat 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 edsja/84 fq(sequilateral 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 d8a4j(ds /esqfue to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vectorijp. iesb;3+ f?

  At twice the distance from a point charge, the stre00xdhe aq+rt);hn-;wlbcv)owab e)2 ngth of the electric field

  Is it possible to have a zero electric f b++qey3 +sjbwield value between a negative and positive charge along the line 3b ywj++beqs+ joining the two charges?

  Is it possible to have a ak6 bv3nx3i6mcv6rm 1 zero electric field value between two positive charges along the line joining the two charges?m v16cinb vr633mxa6k

  Electric field lines near psitiveu1gt4p 5swtdc,zr8eow87 5 bm point charges

  The electric field showp (r+lcqqx2jvf78 5r6 sx vm1d*iwc5wn

  Can electric field lines interse657mrh5o esnd4f:2fc x0by1)pv n 2 v tfqkcm9ct in free space?

  A solid block of metal p*2snuv6,b ie -pw9lu,,fru r in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's intp6rrlb - uie2f* np9,uvw u,s,erior.

  If a solid metal sphere and a hollow metal s k7*c d:gnbw2. vd4xbaphere of equal diameters are each given the same charge, the electric field (E)xb wv a.d742*:ndgkcb midway between the center and the surface is

  A cubic block of aluminum rests on a wooden trveqj82 vlu7:oy0 09wjel/ko able in a region where a uniform electric field is directed straight upward. What can be said concerning th 9yrl:8j / 7euoqvk0ew20jv ole charge on the block's top surface?

  If a conductor is in el.5 emc8f q(2f fudjcneac.( i;ectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in ad0(sw. y: vhax hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere h0:yw .x(hs avdas

State three properties of conductors in static equx(o4jk3zejrx+n0 y 6nda-cc5ga b0*rilibrium.

State Gauss's law.

  The charge carried by one electroy99.,zf hhfnlda/p :hn 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 ele.s ruh5qd6jt7 ctrons 6 urs5td.7jhqdoes this piece of plastic have?

  What is the charge on 1 kg of q+:ce 3mb w4f/;bfcdbprotons?

  An atomic nucleus has a *5 -mycqglb2ix /f6vmcharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1( rl ,z1v1tv,hgd y, colj*t3w.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electrc t,1llov 1wj (,3,d*ztvhy rgic force between them?

  A 1.0-C charge is 15 m from a second charge, and the fr)m2lnvw8nya +47 s,w.atzzg orce between them is 1.0 N.w8.tz vam2 gnz ln+ya7,r s4w) What is the magnitude of the second charge?

  Two 1.0-C charges have a force between tri7 ,(kxqy8*(g:kcztp gq5g rhem of 1.0 N. How far apart are they?

  The force between a b21ei 85xn))cuxz.y (gt r pif$30 \; mC$ 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 8v day7uko p3ve;u(, ws+cb2 b(vae)s. If they are moved to a new separation of 8.0 cm, what is the electric force between theb wseu+edk(p a v ,v)bs(o8c2u yav37;m?

  Three identical point charges of 2.0 mC are placed on the xrdrc -wasx33qk,1t ; zj+t) ph-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the thirtdcwjzr ps ; -3h+ra3x)qt ,1kd is 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 placed on the x-axis. A charge of +2.0e ix:l8q-x ,q7 ofepx7g(m12 7xowt go 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 oq egt xxe g(p,x8l21 7wq -7io:7fmoxthe electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 ,:h9ut dqqbfkiizx lb1 .1l)+mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 =1hub,k)bdzq t .9 +:ilif1x lq -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 of a square, and a second pof 3 9a q; m3pr*pbxdbi1slvi,7int charge of -Q is placed at the upper-left cornx iam3qdb v9;lipfb 7pr s,*13er. 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 8zhz6 jiec /4zm, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force o ij6hz z8ec4z/n the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 pbq2qt+ wvc-1= 5.0 nC is at (0, 0). What is theqbpc21 -vqtw + direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the ver)hj/ hi+phphvtv6 y 29;cahcd2 m1ju(tices of an equilateral triangle which measures c6 yvmdjc ai p9hj/vupt h1h2()h2;h+ 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 1peol.it )a85rs7a tohw9 wu.by 3.0 m. At what point, on a line between the two charges, would it be possible to plasoow.h7p)5. r1 awa ui8e9t tlce a charge of -Q such that the 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 = 7 eswbbgs9 q+6elcfrmr ey))/: eo7+y 4.0 m. Where on the x-axis can a third charge be placed so the ne ces+ewqfemb y +s6g9 )lb/:e7y rro7)t force on it is zero?

  Charge +2q is placed at the origin ki molk o s4l.4 sfu0nqaf747)and charge -q is placed at x = 2a. Where can a third positive charge +q be l 0i s7u7s foonmak4kflq)4 .4placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. dncxy )ghu0s8v+n l5f;4v , gns*9 eng 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 goqw yzrs-4t/wh, 7z4gravity by the attraction of a fixed proton twzsq-gy7z,rh4w4o / some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threap-rdd n3q*p 7ids which are 30 cm long. Both are given identical charges, and the electrostatiq3- rd7p*idpnc 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 charge of +40e. What is the magnitude of thxsa:n 0 6powt*e electric fieldswa*t x06n: po at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the elmkgc2,zkp4bqi*26l rectric field at a distance of 1.50 m frgzm k6lc,b4pik2qr 2* om a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test chargm9j5+zr+j q hqe. What is the magnitude of the electric field at the location of the test charge 9+5qmjzqhj r+?

  A 5.0-C charge is 10 m from a small test charge. o7itym:ovndh/ (4y,bv6s, jv)c0bb x What is the direction of the elec dm(v7hi:xj)cvo, bsno 6 ty,4bvyb/0tric field?

  A 5.0-C charge is 10 m from a small test charge. What i-wh e2fw oxs,uwg-+*l s the magnitude of the force experienced by a 1.0-lesxg+ wf o,wwuh*-2 nC charge placed at the location of the test charge?

  Two point charges each ha:llj 5l vg - -g*zl yh2ifghf95)itk/ove a value of 3.0 C and are separated by a distance of togf:l5j *v k-ll glf/-i) y gz5hi29h4.0 m. What is the 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 -4.0 e .zrykm:e-t *mC charge is placed at the 50 cm mark. Whatr te *:ze.-kmy is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter st7 1ijic1s*bprzrqta e w/22:eick 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 elecarep17 1 2wzbq:iics jer2t/*tric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 at:q .28.q kwwi; luqjond x = 0.20 m. What is the magnitude of the electric field at the point midway :8liq.kqowt 2;uwj q. between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. f u*mzl s/b/m3 The last corner is occupied by a -3.0 mC charge. Find the electric field at the/smuz*b fml 3/ center of the square.

  Consider a square which is 1.0 m on a side. Ch-(qzp/: cnfo9w,vkoj arges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +f/, :von-zp(kq9oj w c3.0 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 placed in a uniform eltx94to m,4c)b6vgk lp ectric field. What is the magnitude of t9bv6tc, )gxlo kmp4 t4his electric field?

  A particle with a charge of 4.0 mC has a mass ofgt/,*h7sy 78 cls2w0 i /ozqyrvtlt1c $5.0 \times 10^{-3} \; kg$. 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 po3u:l .y:osz b 7gmafw7vdgg/+inting downward. What charge must be placeg :g7lmyd b7 oaw/fszvu:3g+. d on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2xcaoyi5r zyj2db6z jt cu(: 8/ z--8kq.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electc(2ar 5 iy-j:t6cz8 dbzux/kz 8jq o-yric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. Wh rncdvl:rdv)u8qtfq( ,4t *4oat is the magnitude of the electric field 5.0 cm from thefq,ct4nrr: o 8t4udv l)q(* dv sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elecl;zdm/tm/b y7 l/e6twtric field 6.t dl6//; mb /ty7lewmz0 cm from the center of the sphere?