State the law of conservation of electric charge.i t4w-oiee p: qk83r0u

  Is it possible for two negative charges to attract each oyty2gk b - mj1u2.w0qpther?

  Is it possible for a positive and a nehr.vhu5nszu5/f 1 x.yukt17tbixd 15gative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the procooz y;bfl:) (zess the glass rod acquires a positive charge and the si;zzl f )o:(boylk

  A proton carries a

  The model of the atom shows 4s e: 0a ne7z,vozib3da

  A neutral atom always fv rl+)7d2i6 jel)quyhas

  An atom has more electrons than protons. The atom ti oi+y j:32giis

  Materials in which the elect y6xxpcz8g9k9 rons are bound very tightly to the nuclei are referred to a6 8pcxy9kz xg9s

  Materials in which the electrons are bound very loosely to thejcy0, 3 cr6taufcs:nse )6)ob nuclei and can move about frejcusb:os c,))e6y af r06cn3 tely within the material are referred to as

  A negatively charged rod is brought near one end of an un 7,n5tq)gs 2d fntwo:pcharged metal bar. The end of the metal bar farthest from the charged rod will be ch)otnswtn5,f7d2: p gqarged

  Sphere A carries a net positive charge, anaeuqm/;dzh,.i 5u(pdj2 hf;x d sphere B is neutral. They are placed near each other on an insulated table. Sphere Bdquh ;zu ax pedi,m5j/(f.2h; is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope s:cc7l 6qig,e positively?

  An originally neutral electroscope is briefly touc+r 0kzt zn t+h1uzuf(7hed with a positively charged glass rodn 0+th(zurk z71ufz+ t. The electroscope

  An originally neutral electr, /frj4lffux:-s/ avtb+s e z*oscope is grounded briefly while a positively charged gla4b+: x *ss -arezf/jfvu,/tfl ss rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope c+uehw01i yg 2e5qglm l5 9jn(hw3eord .oc/2, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What hap/l nj(uq e 50cwr35g .i9lh mo2o wyeh1d2+egcpens to the leaves?

  A large negatively charged object is placed on an insulated tabl uhwa 3ns2a :gwgengn, j)tufdh3(7*4e. A neutral metallic ball rolls straight toward the object, but :uw n3 eaahfd)uggg234,nw *t 7shj(n 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. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb const+ue+: l:k c:1kjbporlant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a di q+6x ;tg(0q,nem qf,rs d5yfhstance d. The first charge is larger in ma0;qfm6n f5 x+ (,qdqsh,ey trggnitude than the second charge.

  Sphere A carries a net charge and sphere B isic8yx q6a8 bc0 neutral. They are placed near each other on an insulated table. Which statemeniacyq8860 cxbt best describes the electrostatic force between them?

  Two charged objects attract each othh4)t8n9dye c0r0dwy3 n q j:kmer with a certain force. If the charges on both objects are dody n te 4m8kycrdhj3n0:9wq )0ubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual a6x*u *3 wdmtq8rgve.xttractive forces of F on eachrt3 .qxw m 86*exgd*vu other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other witpjjnyu.c13e ruz ldb-/bonc:x 6(3y 8h 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 centers is reduced to one-fourth its original value? The force is now eq: bjbeou13y /3ncj r(yxzcun-dp8.l 6 ual to

  An electron and a proton are separated by a distancej /ic4egb pjwi42. bm3 of 1.0 m. What happens to the magnitude/j4mij 32 bbp.ig w4ec 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 distancu6dv 2f.bq9zjd ff.dr-j;f. pe of 1.0 m. What happens to thez;j df9 ffd.fjbvq.p d -r2u6. magnitude 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 uj ka(5tus/u6*/krjy1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer tsku/ *ujktar /6yju5(o the proton?

  A point charge of +Q is placed at -map v8jm . r v)b4 f)rp0ncr)-7jsglothe 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, 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 c n)r f- jvp mmc.4ros)av)jl-g0r78bp harge at the center of the square?

  A point charge of +Q is kyj z u9n28*nbiay*v/placed at the centroid of an 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 tn**i uv/yj8k a z2yb9no a third charge of +Q placed at one of the other vertices?

  Which of the followi6)(9o uru/4,r y3dieici zpp hng is not a vector?

  At twice the distance from a point charge, the strength of the electric fieldhe wmmi q tf.yhin (bdsk0b( :tdy: nf5)59w0.

  Is it possible to have a g t/7xop 9b)chzero electric field value between a negative and positive charge alonhx/)9 7cpbgt og the line joining the two charges?

  Is it possible to havelm(6lsz +(abw a zero electric field value between two positive charges along the line joining the two calb s(z6ml+(w harges?

  Electric field lines near j.kr j1emnkht(cq0ym01 0xy* psitive point charges

  The electric field showc* d h4(z 8a:s4ixc0qvpdbgh5n

  Can electric field lines intersect in fre7 x(eepkmx d7rkm:)gs0 c) jb4uh*;zw e space?

  A solid block of metal in ele5ffzz5z :jef 8ctrostatic equilibrium is placed in a uniform electric field. Give a statement concerning thef fe5:jzzf85z electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere oqk 0y0y;p8cfs f equal diameters are each given the same kys0fqp c; 80ycharge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regiy9cl h+dtl+, bac) 3o77sgqndon where a uniform electric field is directed straight upward. What h)+, y cn+7bdslgtdac3q7l9 ocan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near:fxydtlb +/.j(p :qz4 aj amdki :w(+v an electric charge

  A positive point charge is enclosed in a hollow metall ab2visu k46w4ic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directlyik 4s2b wau4v6 above the hollow sphere has

State three properties of conductors in static equilibdvt ;hc4c0h /j6 he (7n e+qx3ucvcma*rium.

State Gauss's law.

  The charge carried by one electro er:.wrfdm7 2mn 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 aa +odr*n(c+hpuo9 )kb;jd ,xx net charge of +2.00 mC. How many more protons than electrons does this piece of hdo; +xb9c +xo)urakj (nd*,p plastic have?

  What is the charge on 1 kg of protouj*mse 2-k qn +u; i5)d;nvbnjns?

  An atomic nucleus hasd eab 7ykszc :,426q(uq4 izhv a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sepa+np. us2 e9hda 3l6yjrrated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the ld9 h3ys+6ep 2rn.aj uelectric force between them?

  A 1.0-C charge is 15 m from a secon1cu)cahjkk : ub3z2+ u ;mxo/dd charge, and the force between them is 1.0 N. What is the magnitumuo a2;uc/bhju 3 kxz1k d:c)+de of the second charge?

  Two 1.0-C charges have a force between themjub,ip3oddbg88j ; u, +y :kaq of 1.0 N. How far apart are they?

  The force between a p6v( qm5tdkvuo 0qnu -y+:h0b$30 \; mC$ 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. wleu3srt+wun;dm /)u -*juu5 If they are moved to a new separation of 8.0 cm, what is the electric force betw*um rd t ulwunu5e+ )/-wu;3sjeen them?

  Three identical point charges of 2.0 mC are placed rc7p w gi7, uazuv21zc;cn1x m t,mq ne8+8yi6on the x-axis. The first charge is at the origin, the11au zgyr,iicw7 nxze;8um8 +2 t6p7nqccmv, 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 charge at the origin?

  Three point charges ae/bw-*pyt 7*p)mf esob-0byut i8j(0 iwo,l are placed 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 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the ori(wwy-)styb b/bpum*ooe,f708 j-pla * t i0eigin?

  Three point charges are located at the f7m5ucf+jf n8u1tf om gwid188ollowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at j1m+ 8fiougn81 f 8mdtw7cf5u 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 th;.d11 4kndh5/k cmmyr9aog d9q6acr oyq6)eke center of a square, and a second point charge of -Q is placed at the upper-left corner. om 4qq5h k)gy/k9 c9;1rn61 aeyc 6orkdmdd.aIt 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 apfe4 rpdr ;qu+ .gj3w0t (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Whe40qf 3 u+rpj. wd;grpat 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 nC6sb:m(6 m5dap)xmsch is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the db)c6 m msm5hx6(s:pa net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the veo+ m9d 3 c1n b(h0hit:pw,cftmrtices of an equilateral trcd0 h ,3co1mm tib+:ft(p 9nwhiangle which measures 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 by 3.0 m. At what n .yclto-gpoo,saxb; 1p9x + b7;yi4apoint, on a line between the two charges, wos;pp4-og1 t , bx9ilxa;boy cy. +7onauld it be possible to place 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 )v;wstrqxp *.jxl tt3ayr 04*+9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it rp;xylt*j3r.q w 4v*tsat) x0is zero?

  Charge +2q is placed at the origin and charge -q is placed a1/n.55zq9libc h /0k vshl ynat x = 2a. Where can a third positive charge +q 01hli lnay9nzbhv.sq c5/5 k/ be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total q45df v.jgz9j5iu zq; v-zhl8of $4.0 \times 10^{12} \; electrons$ 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 attra3dnu :8mr6jl,0pwdk pction of a fixed proton some distance above it. How far ab 308jm,dl:p6dnuk rwpove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonc /3s5 -ihq w1zyvpsef1ny7t)uonducting threads which are 30 cm long. Both are given identiceut5yhvpn/ 1 sy s)f-3izw7q1al 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 k1+ s,ub2hr r;rvod27td 7zglcharge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the t12hrlk u do,+brs vdrg2z;77nucleus?

  What are the magnitude and direction of the electric field at a dist (b4nkwj4rt(v ance of 1.50 m from a 50.0r k44wjvn((bt-nC charge?

  A 5.0-C charge is 10 m from a syiib 1thg+k7;pam ;3 jmall test charge. What is the magnitude of the electric field at the lociyj ti kh3;g1ba;p+m7 ation of the test charge?

  A 5.0-C charge is 10 m from a small test charge.9k aoyg;moz. *2qqgz8j *9jqu What is the direction of the ezo2jz;gqq k a*mj*.y 9og8q9u lectric field?

  A 5.0-C charge is 10 m from a small test charge. lyf+lyjx7,)q a3d0osWhat is the magnitude of the force experienced by a 1.0 nC charge placed ay0jl3aq)y s7lo f +x,dt the location of the test charge?

  Two point charges each have a value of 3.0 C and are separatewe6zemn852a4t zq. /i wrr6emc ;f 5rwd by a distance of 4.0 m. What is the electric f4 ire5wm/qzrc5 . wwz6r2n8e;tafe6mield at a point midway between the two charges?

  A 5.0-mC charge is place-kzea1-0p*)a:-hc vsxgqh bn d at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What-hp:hza-0b sc -gn v)q1ak* xe is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed k,78l .s nw6o);hyprv9mefck p i4ei/at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. Ato7;684l, i9kippe r)ekhw .svcfy nm/ 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 at x = 0 and x = 0. f5f2c5btva2t n+l vb320 m. What is the magnitude of the electric field at the pv 3v2n 5c5ftlfb+tb2aoint midway between them?

  Three 3.0 mC charges are at the three corners of a square ol5l4:pl: z6 zpzjkz2nx(6c vof side 0.50 m. The last corner i 2jll:zvl(c5 o4 x:zpk66zp zns occupied 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. Charges are placed at 7u amhkqet:o u r 47q82wd28jpthe corners of 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 at (0, 1). What is the magnitude of the elrqu q:8d 2p 7ate4uoh28k jmw7ectric 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 electr65de4 -liawkfxakx*7pc63b aic field. exwak4f-7d3 lb *5ai6 pck xa6What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hast6al lu. -5hk4/erqxz 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 6000 N1peuyl- hp:o 5kh-3 tw/C poinu pl13p-yoeh t:wk- 5hting downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed 63k 1ixtcwxtq,z,.ck :7*wdx)7 f 7fdhdkgmyinsi c x qkkdy 1k3fi.xg:wc,tf7w6)* ,xthzd77dmde a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius.ww2)kbk sxd0j1dz,+qn0 6l f tcsxq1 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from thq1 bx01 w60.z qdwd2kcf sxkl+),nsjte sphere's surface?

  A metal sphere of radius 2.0 cm carries a c c+y9lzh l4d(wharge of 3.0 mC. What is the electric field 6.0 cm from 4 +(cl9zhyw ldthe center of the sphere?