State the law of conservation of electric charge.c g6v/no)lf 1ja1 cwg*e0vda 6

  Is it possible for two negative charges to attract each ot5pt f7p ogl4msnhcm+k+4+ 2diher?

  Is it possible for a positjz.8 x8pbtdi elo k+nv0 *wq/7r/s .ktive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of sil)ec)ra 7o2suu * psq6nk. During the process the glass rod acquires6ua)c 2s q*espu7n ro) a positive charge and the silk

  A proton carries a

  The model of the atom showsj wb i8k(poh5+mxb *7+2 meqzy a

  A neutral atom always hasq- /zzkmz6r .cljrj8)

  An atom has more electrons than protons. The nrq l70r h bc/q6ibm,ogxx*3:atom is

  Materials in which the electrons are bound very tightly to the nu sj8z7) bxr:lgclei are referred to as)x8 l7:jzsgrb

  Materials in which the electrons x. sy2a3i2ggf are bound very loosely to the nuclei and can move about freely within thes2ga 3i x2ygf. material are referred to as

  A negatively charged rod is brought near one end of an unchargedw -7jyr rn.v3d4ubcbt is0(3 d metal bar. The end ot73s0drr-iv nbj4uy w cbd3.(f the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B cy bh82lm o-*k;r4mll,v xr jjy*9lz j8*;bzsis neutral. They are placed near each other on an insulated table. Sm 9jj8mbo2z c jrsry* x ;lk;,b*y-4z 8vlhll*phere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge anzc )02;gvb5jfu 6t -p gmzl;dl electroscope positively?

  An originally neutral electroscope is briefly touctjgy bew+ /9 8*oj1puwk,0y-wg,3mfneub *d mhed with a positively charged glass rod. The electroscofwt j*m y130,/ nkeup,om9yeg- wwjgbubd8*+ pe

  An originally neutral electroscope is grounded brieflyk/hhu vx(m8bgx* lnd2(kj )2 p while a positively charged glass rod is held near khg8 ()mu v(/lx22dkpb* hjnx it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electrosco-:i6z eke ge5upe, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happ-eegu kiz5e6: ens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutrcoooqhevi ,v(st8 cz*8h,t+qjek 6 c-130rzval 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 doec cie+q,q,1z3 o rzj v0khsv-cevt868ot oh*(s 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 Cq* z.(mycby 0z)dmzi8m +2pt boulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distax n8sztf re-, 1;:4locrl;deb nce d. The first charge is larger in magnitude than the second charge.-dcx zt:l;lnes or;4rb ,e81 f

  Sphere A carries a net charge and sphere B is neutral.f(emahx+5g * u They are placed near each other on an insulated table. Which statement best desc* 5a gheux(fm+ribes the electrostatic force between them?

  Two charged objects attract each other with a certnai6a: *1pt acain force. If the charges on both objects are do:pnaac1 * ati6ubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual ay eyrqx.i/jla* 4lx(7 ttractive forces of F on each other. If the charges are separated by a distance of d/3, what are the newr4j (llyy ei.xx*/7qa mutual forces?

  Two charged objects attract each other with a forcg 5 wt8v7y.em a.e:xtne F. What happens to the force between them if ox ey m7:5.t.awegtv n8ne 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 equal to

  An electron and a proton are separated by a distance of 1.0 bv s9gx u.h6zsmk bxc 5k8,*,lm. What happens to the magnitude of the force on the proton9m s. ublkzk, 6xgxcbs58hv*, if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens to -aw1or6c cr. hw-ny1bthe magnitude of the force on the first electron if a second electron is plac6a1-nw ro .yccwr1bh- ed next to the proton?

  An electron and a proton are separated by a distance o)r /gzznavf9d+ wap76f 1.0 m. What happens to the size of the force on the proton if the electr9n)vap /wfa+76zgdzron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a t6 fajak-vzdmjbw q d1b;7 xc *vuxr25( mf(82second 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 cv jmuf(x-*dkawzrv 6(2d2fx8 75;mcb 1 tqjaborners 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 an equilateral triangle5l :s6hv1/guz ndxp 7b. When a second chargelgv5xn s6d pz7bu :h1/ 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 other vertices?

  Which of the following is not a vect.j f lk5.ck7al35 ieioor?

  At twice the distance from a point*coc h yzz643kke :6fz charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and po(0r4 hx2a lwiositive charge along the line joining the ta li o(0wr4x2hwo charges?

  Is it possible to have a zero electric field value between two p7pz(r y22.3h fqemmbnositive charges along thenpy3r qzeb2h2( m.7mf line joining the two charges?

  Electric field lines near psitive point y05ffi3o6l+lw0y su (v f6khf vs8 0fncharges

  The electric field shotkes, (9.lpuml*i6mta0 mu w1wn

  Can electric field lines 74+ due8dq7s pda hzay;p6z+sintersect in free space?

  A solid block of metal in electrostatic equilibrium is plbnbkno8e(3q 6e7 wlj,x8/ ej yaced in a uniform electric field (n3,8wbe ek oj6y/ l7jne8qxb. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphees:l14faylxt4(i8y avch5m8s f.d 3 ere and a hollow metal sphere of equal diameters are each given the same charge, the e41ym s fedfh5(se8.cvy a:a43l 8xtillectric field (E) midway between the center and the surface is

  A cubic block of alumiboy )ub4::nfddq 2j 9dnum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the chargddoq ) nyfbb4d9:2u:j e on the block's top surface?

  If a conductor is in ela2j04 upxys w0ectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow mk k e+j1xn.xd4etallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field a+1 jd nekx.4kxt a point directly above the hollow sphere has

State three properties of con. 7p7ikc5k5mqv +iivj ductors in static equilibrium.

State Gauss's law.

  The charge carried by one electroau d-bd7ye pbfij9fa6bj)qoi :2q 3, .n 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. 5ubblt)c *6ap9x( psz00 mC. How many more protons than electscz(pbp l)a 6u xb95t*rons does this piece of plastic have?

  What is the charge on 1 kg omxjn. qa 08g)(usp. nrf protons?

  An atomic nucleus has a chmm6pxuh +b *q0/2mmjjarge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sepa m6,duy -ek4borated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force b6ekby ,4-o dmuetween them?

  A 1.0-C charge is 15 m from a secohn zmmsycf/vp, 095 y-nd charge, and the force between them is 1.0 N. What is thyc m9sh-pny,zm f50v /e magnitude of the second charge?

  Two 1.0-C charges have a force betw9on pjk10r0kxw fh2d ,-px-i ween them of 1.0 N. How far apart are they?

  The force between a t wvt.yzqes,g:-l hf:pifo2 le-6-,t $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience aaq)y fnnojh/9c)-wg3ffg+e p41n f 2q 1.0-N force. If they are moved to a new separation of gnf)c qayf) 3 e1/j2 fhwf+gnqopn94-8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axisvkwtr+j( o0zrs dyf9c: (*ns 4. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 zr cywont(k4 (*sv: r js9df+0cm 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-avqt( mxr+ef9: nj +,htxis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the jehvm,(9+ n:+tt rqxfright 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 origin?

  Three point charges are locateq,/ maqrh0,y*s y*rx dd 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 foqr*hd s arqym,x/y0, *rce on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second poitwhs; /wkf *mvewqv1+buz /jv08w 0k/nt charge of -Q is placed at the upper-left corner. It is observed that an /fuvwqke /0s*b h1w vvkz 0w j8+m/;wtelectrostatic 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); ;3+ph4d7n ctmi3pyb tQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is ati34p n mt3;hbcd+ tpy7 (0, 0). What 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 (0gexe 0 r nah-gx/rg*92,w6 mzc, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thxmg2,ee hcaxw069 ng*rr /gz- e 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an e6o.kf u bcz 49j+ cxqu:p24qgmquilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of t+kouz qgmxbc6f4qp :c4.29j uhe charges?

  Consider point charges of +Q and +4Q, which aru;qdz9w0le3 p:hgyp .e separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place g p;dhlz.yqepu: 39 0wa charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the dct*.42a1x tyr,nmqm origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the c .r1x4n 2mamy, tdtq*net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where ca 6phvvl qshg0uu fl;9/.;9exhn a third positive charge +q be placed so that the 9 v9.hg;/upqe ll6 fxh;h0s uvforce on it is zero?

  A copper penny has a ma m 14iqi+vh+yhxs5mh8n wg ++e+mr d,gss of 3.0 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 forcejp-/awnu2 n 7r of gravity by the attraction of a fixed proton somn p -/27jwaunre distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are tyfglq j:bs5(* uvxj2;k* +/d ewk1 hahung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the thre/ey bf (tv*jw*kahq1ul:x k; + sdg2j5ads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What bt qr3bv)dd11is the magnitude of the electric field at a distance of 1.0 m from the nucleus?1qbrbdvt3d)1

  What are the magnitude and direction of the electric field at a 46 /oh3yw r5ovzl8x pcdistance of 1.50 m from a 50.0-nC ch 8cyrv5z46 xwl/p3oo harge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitdu u 2w8rrcb e,xqj62 xs q-;3xvos+d.i)sj7fude of the electric field at th x,js8f 2 o23s+edqujxur;dqc. birv -xw)76se location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is t+h6ydw.*6pqm+s plt dhe direction of the electric fie+h.d * 6wtlsmp6q pd+yld?

  A 5.0-C charge is 10 m from a small test charge. What is th5,oit/xock zirku1y49 /-xwle magnitude of the force experienced by a 1.0 nC charge u wkxrl9/k5yo,xctio4z - /1iplaced at the location of the test charge?

  Two point charges each have a value owgmwas+ t8d*b ite4glz81u1 .f 3.0 C and are separated by a distance of tt1ebuwwg*4idzg+. 18 m8lsa4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at yfzed-u,s/e;2t yo 5jthe 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 m uety, 2sd5-fz/y ;joeark?

  A 5.0-mC charge is placed at the 0 cm mark of a meg: 8w ul1 lgec5-utg2gter 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 elg-eg 1uw:lltg2uc5g8 ectric field zero?

  Two point charges of +3.0ix+ 0:s cv:kon mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the p+si:xon 0v: ckoint midway between them?

  Three 3.0 mC charges are at the three corners of a square of sii(g (q(cn3b gm2 uybq0de 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the (b i gb02((qync mu3qgcenter of the square.

  Consider a square which is 1.0 m on a sidej ( )*i/ 8 ui lnudf3.6ntpg./gynrnts. Charges are placed at the 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 electric fieldn.tp(til uu* /rfgn.ngisd)/368nyj at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in wtpp 6 84kiwq-ag v0i;a uniform electric field.gpk84it ;qapwv6 w-i0 What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a masz2y cl 7)deg+o7f 4 asa(2ybkzs 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 6z fx+n (1z1wpban :sg2000 N/C pointing downward.zsg( 21awn1bn :+zpfx What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.cvp-i-zslwa75xvqkl v5 eg 6 1:-rp s,150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and -c56pve15ivg :x- s-qvrzkl a7 ws,lpdirection of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What isl7tg a gn,am m.j-0( kx4,ih5 rp5gvap the magnitude of the electric field 5.0 cm from the sphegatg(a. hl47r, nki mvga j5x0-ppm5,re's surface?

  A metal sphere of radius 2.0 cji qx8.ifp gr0 5o56bzt s,o-cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the cenzqog o5xc0r p -6,fsitb.i5j 8ter of the sphere?