State the law of conservatih6 mcvls s304o+w. a0u5 vi nj:abex6mon of electric charge.

  Is it possible for t sz+1m5nhj4lnw qo2ad61io574pmo f dwo negative charges to attract each other?

  Is it possible for a positive andn as t,x+:rhsz5k;yn4 a negative charge to attract each other?

  A glass rod is rubbed with a piece of/knz ov7bw.n( silk. During the process the glass rod acquires a po nk/zb(7 wo.nvsitive charge and the silk

  A proton carries a

  The model of the atom shows a0b1gb uzt7g2jogh;ma. b * qs2

  A neutral atom always /tp uzc7(b+uzhas

  An atom has more electrons than pry yckbo4.+ k2gotons. The atom is

  Materials in which the electrons are bound very tigh:nt eg*-wd o jzc9nd5)ko9q1o/odin 0 tly to the nuclei are referred t 5i1:ood wnjd0*/qgn9kc9no d -z) oeto as

  Materials in which the electrons are bound very loosely to the nu7jnk22 sspc8tqsw y(/8 wkca- clei and can move about freely within t2q( syn2/jswcpkwst -7a8 kc8 he material are referred to as

  A negatively charged rod is brought near one end of - exou q/.b1hhan uncharged metal bar. The end of the metal bar fah/h. -1q buxeorthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B iivixqvtx a(rc7 i hcaz* c 2/7t1(/ 0,izqbda6s neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire tdbq/ a i az/vta c7* q7hxxt6i0v( ciz1i2(c,rhat is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively?ka r vjy jb;(a)gsie/c*9e)v 3

  An originally neutral electroscope is briefly touch do2u v s61q6d toougg3ilr+j n0:l8n3ed with a positively charged glass rod. The eo ls6 3o2niv+q jugl8d :gr6nu0d13 tolectroscope

  An originally neutral electroscope is grounded briefly while c: vbgi,uprnt 4ytl/yz*;l12a positively charged glass rod is held near it. After the glass rod is removed, the electroscypl1,y tugzitnc*4lb ;r/ :v2ope

  A positive object touches a neu mpej/ b5 an.t/o4 2xidjt(3natral electroscope, and the leaves separate. Then a negat/jd4et io.x a2p( nbmt 5n/a3jive object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an ins9.7eaj 8i vyqx6mq7p pulated table. A neutral metallic ball rolls straight toward t9m87.eypi j pqx 7aqv6he 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. What is the final charge on each ball?

  Charge is

  What are the units of the Couljlqy 0l3hpv v+pb/4t/ omb constant $k$, which appears in Coulomb's law?

  Two charged objects are f;z0f(vjo h fu)ftv5j(y-e (sseparated by a distance d. The first charge is larger in magnitude vh(v-uj(tf0y; (fjs)o ffze5 than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are r p81vnm8w/ib/mdrusy m1n-u 5 wkb 1.placed near each other on an insulated table. Which statement best describ5vwu/.n 1 /mib8 sw -bu8myn 1rdmpk1res the electrostatic force between them?

  Two charged objects attract each other with a m wxagn88s:z/p x8m/iy:w9 rn certain force. If the charges on both objects are doublem/rw 88xmas 8xp:w zn9gy/ n:id with no change in separation, the force between them

  Two charges are separated by a distance -5o3abk +/d8 uylo2z(mew+2gsin yuld and exert mutual attractive forces of F on ean(dy wka2 3gyo i+l2mb ze/ou5u+8sl-ch 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 ha +pu(g,lz)may2m i0hyzib /;guq rh8-ppens 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 mr0z(iy2u-,pg)z8l h hqm+/ ; bgyai uforce is now equal to

  An electron and a proton are separated by a distance of 1.0 mf oj5udt7jvqz (n9 *dfeq6l +0vsh+tgib8.8y . What happens to the magnitude of the force on the proton if hojqt.907l85y +(fvuqbejvszn + 68 d*t difga second electron is placed next to the first electron?

  An electron and a proton are separated by a disteq4-x e1ab -enance of 1.0 m. What happens to the 4e-q ax e-b1nemagnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a pro vbr( lz;hq3g,tu.d gw*l-0mlton are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is(l,hvum;l- r dw zq0.bgl3*t g moved 0.50 m closer to the proton?

  A point charge of +Q is placed at lh9: *glijxj- r/i s:fthe center of a square. When a second point charge of -Q is placed at one of the square's corners, ij/:jf*glr x - sil9i:ht 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 charge at the center of the square?

  A point charge of +Q is placed at the centroid fs+t:tgpb pe/9 c;l/hof 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 to a third charge oflbfpscp :/ht/g9;te + +Q placed at one of the other vertices?

  Which of the following is not anz4jntfza 1.vk728up vector?

  At twice the distance from a point chargq ,tr;u(eez3ykc- l8c e, the strength of the electric field

  Is it possible to have a zero electricwdqjz1us2: 79;xc 2dnc,ipxu field value between a negative and positizusw7qx9u2p nj,d x;c 1cdi: 2ve charge along the line joining the two charges?

  Is it possible to have a zerodzs9h 76apqm; kg/r:-j6qoqq electric field value between two positive charges along rqqdq/az66:mgjosp ;qk h9-7the line joining the two charges?

  Electric field lines near psitive point chaiiw r3zdu-fys 3e9 +*pnq0q 2 xnry42nrges

  The electric field s(9clc*4 elng2cqb- gbsgrz 0 9hown

  Can electric field lines intersect e5yc5v eiw/7zeen-7 ain free space?

  A solid block of metal in electrostatic equilibrium is placei0r ezf x:;9)pngr a9y t)-mpgd in a uniform electri0) )img:pgnxypa9ft- 9rerz; c field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metalih z4iovrjxj/63g.5a sphere of equal diameters are each given the same charge, the electric ji6oj i. /gvz3hr4 x5afield (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table i w9g3/1rstn :fej8g asn a region where a uniform electric field is directed straight upwarsgeng/fsa: t 389jw r1d. What can be said concerning the charge on the block's top surface?

  If a conductor is in electro 2a6b:j5zk)+zxr axgi static equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grouk-jjwgk x o3601p/p fs k-p9kmnded. As compared to the case without the hollow sphere, the electric field at a point dipp- kk3ogfxk -m1jp6j9s/ k0w rectly above the hollow sphere has

State three properties of cc b8hf- r;a3o*:ej xshonductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron ij biykq 2zky(z,4j/fq- ,et.ts $e = -1.6 \times 10^{-19} \; C$. 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 ele9ubt338 wrg dsctrons does this piece of plastic hatb s8udw39 rg3ve?

  What is the charge oa(h176veh(y g6 mfaxe n 1 kg of protons?

  An atomic nucleus has a chargeni3k1 r ds;sf* of $+40e$. 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 2.0 and -4.0 j u4m:d.3uv zryf 8vp,mC, respectively. What is the magnitude of the electric force betwe4 v,zfrmu38j :dpy u.ven them?

  A 1.0-C charge is 15 m from a second charge,7i3 xzsdz 1ap 7hd6oc2 and the force between them is 1.0 N. Whdpz 6c71xadz s io327hat is the magnitude of the second charge?

  Two 1.0-C charges have a force between thli,g,mcf7m5w8 8+5 hacqsq rfem of 1.0 N. How far apart are they?

  The force between a ro;n- n9dubv3 $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cr- z:1a:psmgcm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the elect rz- csa:1:mpgric force between them?

  Three identical point chargeeuy (ufw px09.s of 2.0 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 force which acts on the charge at the eyux 09 wfu.(porigin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC :t pxuy-sty*uh8 9h(k* pyg+( -nkkf qis placed at the origin, -2.0 m C to un h9+:fkkp guytk -*hx -ps8y*qt(( ythe 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 origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x lx*et)2e aq0x:u* u4usn 9guc = 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 on the 3.00-mC charge?*q:0s uux)n a*l4u9xuegc2e t

  A point charge of +Q is placed at the center of vmm4:yvf;8pznd -8c ua square, and a second point charge of -Q is placed at the upper-left corner. Itmv 8-mvzp8 4u :yc;fnd 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 .(r4d:6lzw djlfg7 sz nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the7drlzlf dgzjw( 4:6.s 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 ( . fo3t o wyott64z:i8wtfg8jbb)2t ;u0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the ug tfiob438t86tb. ;:y2 tzof)otjww 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an0k8 gq -sgs* .-k pahl+fk t-u1vgki,s equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of thegitg8 kk,1 0 s.vkhsp +faskq*u-l-g- charges?

  Consider point charges of +Q and +4Q, which are separated ,ppa6e62 aaj1fr,yjrby 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 the electrostatic force a a6 y16af2pr,rpjj ea,cting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = j7a vr3 eqq xc7mare.9518yzr4.0 m. Where on the x-axis can a third chareqz3a8yjr. rcvr7ae5m7 91 qxge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 4 v2hs(l +a(l5s u:rzqhk 6qqk2a. Where can a third positive charge +q be placed so that the force onkl 4(u ashh52v r:qkz(+qsq6l it is zero?

  A copper penny has a mass of 3.0 z9 xsv;uec-gn( h ,+rrg. 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 forc0wrf7)/h7f upvmvv/i 8x(sp ee of gravity by the attraction of a fixed proton some distaxim0sh/rue7pf(f87 / wp vv v)nce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point b; koomp10,n 4j6lppq0f vnw:b y nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between0: vj p,plf; onbonm6w410 pqk the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus hasbs ansjb3i9vctcn p)(v, /9y - a charge of +40e. What is the magnitude of the electric field at a distance ofnj-(asbbc,9 vt9 3/vcys inp) 1.0 m from the nucleus?

  What are the magnitude and direction o86in rew65 9a0ivyvh hf the electric field at a distance of 1.50 m from a 50.0-nC charv6r 0y hw6ne5vih9ia 8ge?

  A 5.0-C charge is 10 m s 4m vphv-8y; ub4n5rifrom a small test charge. What is the magnitude of the electric field at the lo8ms rhy-b4 ipuvv 5n;4cation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direp*emawb (q0 db+ pve/.ction of the electric fieq0b(/e+*vmbpw edap .ld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the kt;dan( mzp 25 vzl)awtt z805force experienced by a 1.0 nC charge placed at the location of the test d z5tmzkw(t5 ;z2l0n8 vt)aap charge?

  Two point charges each have a value of 351) u ; k*k+owiwdwziq.0 C and are separated by a distance of 4.0 m. What is th* ok wu)1ziq;w +i5wkde electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the tw3j/z8rmo+m 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 ttm3z/o wjr+8 mhe 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick wd wyp;t3x1tjx+b1 z) kdi- 1vand a -4.0 mC charge is placed at tx3 pwtz tv1+jdx wy1-k idb)1;he 50 cm mark. At 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 = w2hs8k1d i)ajx zea79 0 and x = 0.20 m. What is the magnitude o7dw9e) 8h1ziajxksa2 f the electric field at the point midway between them?

  Three 3.0 mC charges are 7a0ktso,hqic h)8nr55 9)3xh r slkcsat the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. h5s7 ocak3sn) ,lh icsrr8 k )5th9qx0Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the hwrqha-t(9is rk.5 boz:.qw .corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1,h-(w:qq ts9.r. i.ak zo5rwhb 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 placed in a uniform elecwtnnn.0t)at7i98o+.h t x dmatric field. What is the magnitude of this eletx.) m. wn9 dio8tnnh0a+tat7ctric field?

  A particle with a chv t+yu5pnj2l)arge of 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 is placed in an electriasme +7/r0t ukr46 hccc field of 6000 N/C pointing downward. What charge must 0thmer+6sra47kccu/ 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 pl22) pcu,v+ qn:wuglg gaced inside a unifo:uggcl)u2v+, 2pgwnqrm 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 10 cm carries a charge of +2e6+bn vy0d z.u.0 mC. What is the magnitude of the electric field 5.0 cuvnbz de6+y0 .m from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge o zoyd30ip g09g(f0hw 7,i fyduf 3.0 mC. What is the electric field 6.0 cm from the cwizg9fpdug i,d7(f 003yho0 yenter of the sphere?