State the law of conservation of electric charge(zg3j0.z bne g.

  Is it possible for two negative charges to7 jw nhwvo1v7fy6 j69y attract each other?

  Is it possible for a positive and a negative charge to at /l3.vqs v8td4h ccvy5tract each other?

  A glass rod is rubbed with a piece of silk.u;od+1x j(4kr q/xgw g During the process the glass rod acquires a positive charge k 4q(1w/d;x+r gxogujand the silk

  A proton carries a

  The model of the atom shows6 xk)qqr(qzp ) a

  A neutral atom alwaysxps t .dqsq gjsq68n:.h/0.rr has

  An atom has more electrons than protons. Thh((uu/kafc q8y/ .ta:dlt 3p kun() b4mkh5xue atom is

  Materials in which the electk,hwr *bnp) 5u,qc gxmak:,he x73re 2rons are bound very tightly to the nuclei are referred to 2hgb, aw:c7n,*hk)r5xqxe ru, ke p3mas

  Materials in which the electrons are bound very loosely to the nuclei and can ma)y f04c3aonhcm+i mc6 p+f 4orhrm,) ove about freely wit rm h4 af0)6cinymp+)r3oho4 ,f amcc+hin the material are referred to as

  A negatively charged rod is brought near one en((.uckrw9em ;fog2 ta)s+m fl d of an uncharged metal bar. The end of the metal bar farthest from the charged rod will b l+a(fro)m9eu.f ws2tc g m(k;e charged

  Sphere A carries a net positive charge, t8rm6 n(6-bx atqr r6cand sphere B is neutral. They are placed near eacxnt-6 cb66 armrrt8q(h other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged axl)les-, j+g7xst3t rod charge an electroscope positively?

  An originally neutral electroscope is briefly toucbbj+bq0 -+qxb, 1n yhxhed with a positively charged glass rod. Thebq+ 0x+y b -1,jhnqxbb electroscope

  An originally neutral electroscope is lzj8el;yi4*fq(5u bfqu w ,5v grounded briefly while a positively charged gli45 effju5,l(b ;*8wl zyqqvuass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electotw ,sw 6mm6 r:x8n2woroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not tosx6w 26mw trow,n:o8m uch it. What happens to the leaves?

  A large negatively charged objectsv j0r555jzo y ;xh wqk(xequ72i/1kg is 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, strikes the first ball, and stops. The first ball rollsyz 0 / vkh2ujoj5qxgk ; 57(5sxqei1rw 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(:p) kav+m yil the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects akq y j v0fdox*-m:h6)pre separated by a distance d. The first charge is larger in magnitude 0pxfojhkm* :)yd- v6qthan the second charge.

  Sphere A carries a net charge and sphere Btnx a zpb3r 5c5phqk:a)n3* v6 is neutral. They are placed near each other on an insulated table. Which statement best describes the electrosta6 *x kapp:nh)5a53cnr z3bvqttic force between them?

  Two charged objects attract each other with a certain forcepg* gv-jtl9 5l09agjj8b0ljc. If the charges on 9pt0j-gal9 gjv0b8 5 lj*gcljboth objects are doubled with no change in separation, the force between them

  Two charges are sepa u3dtszq+bv)8k 1r; uurated by a distance d and exert mutual attractive forces of kd3;t v+rusb1u quz)8F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the foic* m2 , ;naj8pswf -i-ve5*4jj4 fi4qdrz nmcrce 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-sz fm;8,jmaqn 4ijn *wj44-r* dc5fe2piiv c? The force is now equal to

  An electron and a proton are separated byua.8 gwpg71rv 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 fiar.78 g1w pgvurst electron?

  An electron and a proton are separated by a distancgf q*+;u2ln1guvd:suic k -l(e l-8e ne of 1.0 m. What happens to the magnitude of the force on the first electron if a second electrog-nu :+g uvl2l;-ke(nel*csd8q i1u fn is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 /r2g15f7n )c eq*;vs r*pakwn) h j kpqxd,h:cm. What happens to the size of the force on the proton if the electron is mov :rr*n;aqxd hgp2*s qc)kjn5 ev) 7w,p1 hcfk/ed 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squa;g 1puh.-4gtr lzdck 9re. 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 cornl g.k41u cpdh-9rzg ;ters 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 trieb xgaoq0f3.s+ u2l*xex 9qd -angle. When a second chara u*e f3b9 xx2q- s0.+eqogdxlge 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 followingn g,:u km c,h./w9gqmz is not a vector?

  At twice the distance from a point charge, the strength of them25n 97x uysw c0.f (wko2vob gtpew7( electric field

  Is it possible to have a zero electric field v f-i)vuwks zc (n;6d.c;a(.9bhvlq xz alue between a negative and positivez.6ldu;avi;n-vs(( f9 zxqh k )w.cbc charge along the line joining the two charges?

  Is it possible to have a zero electric field value betryt +h v5a qd:4n98pcgween two positive charges along the liney car5dntph:84gq v+ 9 joining the two charges?

  Electric field lines near psigyxfwr3-t 31 ftive point charges

  The electric field shown ysg jkvfxc9 :,ngp*;*

  Can electric field lines9 xdmr4avn xf 2u.fb8j7 pgn8/ intersect in free space?

  A solid block of metal in electrostatic ea ol(yej1 q9a3x, t g;35spyjjquilibrium is placed in a uniform electric field. Give s,qgeapx; 35oy j 1ltj9(jya3a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of ebma /rp qp)3a .r ww3u1a.g5adqual diameters are each given the same charge, the electric field (E) midway between the center a a)a.3mp/ w.p351rubwq adrgand the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uh;pcyna occ*+z -5-szniform electric field is directed straight upward. What can be said concerning the charge on the block's toa- *n s-;h z+pocc5zcyp surface?

  If a conductor is in electrostau 4l kuyt.rs70tic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that isuo .hfc2u v/smul4;3p6z/ jjs grounded. As compared to the ca2// ;ss4c .um6lzjpojhu ufv3se without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertieffyd8i c01y9cs of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one elel d81ziiy q/2)wk;ur0 efspnfpg (w )/ctron 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 ax7 gk9r 4o0z3etrc:ycharge of +2.00 mC. How many more protons than electrons does this piece of atge:0rx9 4oyc r3 kz7plastic have?

  What is the charge on 1 (ir4tc5nqg z8kg of protons?

  An atomic nucleus has a charge of f12a any agjv4so53nh8 l j4t0$+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cmqo.cbffp -,.jt),wpu( 83l p+6onn onf9lomg , have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the elfo q.opnfop+,n8l3 l of)-9w(.b,ju 6mpngtc ectric force between them?

  A 1.0-C charge is 15 m from 5 cku1nrc/-ch)k-zwuu ms2 9y a second charge, and the force between them is 1.0 N. What is the magnitude of )c9-c -ruwnmh1yus 5 kku2zc /the second charge?

  Two 1.0-C charges hav:rj qi+q j;ku5e a force between them of 1.0 N. How far apart are they?

  The force between a je0b- q,ck8ju(lcibzp ,y4j ($30 \; mC$ 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 h mgppw1 *21s5krxb upc*lt2+force. If they are moved to a new separation of 8.0 cm, whatb1+2rlp*h ctx2up*g mw k1 p5s is the electric force between them?

  Three identical point charges of 2.0 mC are placed on tha+pe i (p:cmfqx.a5z )e x-axis. The first charge is at the origin, the second)xpfp :5zqc .+e(aiam 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 are place)hfxq7(xueb ;d 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 a e)qb7hxxf(; ut 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 located at the following positionss33foi2t4 tjfty3 b3ro:i 6qxx )j;ia: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1 ofixstrt3 jj:3;o)yi4t32 abfxi 3q6.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q7ktu.j8a;u b9nqmbs (rz 90cp s)uw z) is placed at the center of a square, and a second point charge of -Q is placu.kzw07 nsbau)u r89p; ts(bz)mj c9qed 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 -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC isd)u2x awh +t-g at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge?u+g)dx 2tah-w

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.v;:qa6bdd i c;ods :fvcmq6730 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dirocv bi:f;qdmdq: a; c7s36 vd6ection of the net force on the 5.0 nC charge?

  Three identical charge,sle( oh2t:28ddf iq fs of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatich: 228oslqedid( ft, f force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. ha3hu: oru4t ct8 )skls3,f ;u At what point, on a line between the two charges, would it be possible to place tuuu3l34 ;facsr: 8ktoh h s,)a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is azads+oz4f9 k ata (;4lt the 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 net force on it is 4k4t z;l asz9f(d +aaozero?

  Charge +2q is placed at the origin and charge -q is placed at 6n- 5cuc luil4x = 2a. Where can a third positive cha-cl6un 4cil5u rge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A totaltt:pk8ut b( gf-hv)t 3 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 thekf4*v9eb- dbg/ag0 cl force of gravity by the attraction of a fixed proton some distance above it. How far above the e9gb0ev gcf4l / k*abd-lectron is the proton?

  Two 0.20-g metal spheres are hung fr+* 9etwdc q1ayexnvz//1 jss,om a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart ,ewe/zq a t9/v x*1jyssc1 d+nuntil 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 thef-n n:aoh*8;ma n je*s magnitude of the electric field n*ah-jeso*:nmna ;f8at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a d+61fg ja*4j pwmkw h8dzi6iwj6,69yob x m1n jistance of 1.50 m from a 50.0-nC charge?wf*6ny9hp6aj8mw6xijjjo 1 d4 zkwm g,1+6bi

  A 5.0-C charge is 10 m from a small test charge. What is the malq yn) 94q)jzx p3vdc/gnitude of the electric field at the lo/qqz c)v4nxpdl9y ) 3jcation of the test charge?

  A 5.0-C charge is 10 m from a smw) ksyr*1 ew( oxpupi98f*r l9all test charge. What is the direction of the electric field?r*s9ppkyof)u r1w li*e 8(9xw

  A 5.0-C charge is 10 m fr u19q a 9,jjop1rckux;nlk 2m3om a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the lo2mo 1a9k;lc9 ,x jpk3rq uun1jcation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distancel2soue+ b9r z,b3u 7wr of 4.0 m. What is the electric field at a point midway between the two charge3r ez9,b+w r2b s7oluus?

  A 5.0-mC charge is placed at th jggv6 k.z 0eul+8hy,he 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the ele.,eh0gvk8+ljz6 yh guctric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and apadmts99vg1/ 77cc2qjf pgog:n - w,l -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zpd go7a-ggwcs:t2/ j,91v nmcl p7qf9ero?

  Two point charges of +3.0nk elh+- 2e9p4c ge.nl mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the mn9 gh lec n.4+ep-ke2lagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cw+qw +/v7sg f-gxmj6borners of a square of side 0.50 m. The last corner is occupied bmb+gq vsw6+g- w/7xjf y 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 h) )o k8 85pfsh*fhdeqat the corners of the square as follows: +4.0 mC at (0, 0); 8*fhdf)k) s58eh po hq+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 charg+m)w.x*a rtz - yk,n*il ok n1vomoey *(/rzr,e of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electrilam-*z/ r1 entvxmy n+o* ,iok,.)rwykor(*zc field?

  A particle with a charge of 4.0.jy qki6s.d:qtglqrv-v 57i 4 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 is placed in an electric field of 6000 N/Cn) uc -giau6xz5rg/u4 pointing downward. What charge must be placed on the ball45z u6a-ig)gru un/cx for it to be suspended?

  A foam ball of mass 0d(z3, n :x7oa,cwoipp;+:pw4 jyej c j.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 direction of the electric 7z(p:jw, wpc a;x,pjcj n oy: i3+do4efield?

  A metal sphere of radius 10 cm carrie; sbhjss9 z f28.j4psps a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm ss4 h.jsp9;zj 2sbfp 8from the sphere's surface?

  A metal sphere of radius +o9yx /e 4 zrbnvvzzc6 2im-6c2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the centern 6czrmz -z94x v i/6v2bec+yo of the sphere?