State the law of conservation o.uf82 amuuyvc 3/g2o mf electric charge.

  Is it possible for two negative charg5;z ai s4(uizjes to attract each other?

  Is it possible for a positivee-1z plp 3q*s2orxy s9 and a negative charge to attract each other?

  A glass rod is rubbed with a piecvu6(so4hc vb 4e of silk. During the process the glass rod acquires a positive charge vcbvou44 h(6s and the silk

  A proton carries a

  The model of the atom sbxyyq.qd 4q+d1)/ pity(b ;qto6s+bt hows a

  A neutral atom always s puzh,1u8m 7jhas

  An atom has more electrons th5 guki :zrsl b:/,skc/k)t;msan protons. The atom is

  Materials in which the electrons are bou7m(wv;w8juqs tf t47 -fhl.wfy 1 /mmhnd very tightly to the nuclei are referred tvm1 t ush/jft wlh7fqf;.7yw(wm4m - 8o as

  Materials in which the electrons are bound very loosely to the nuclei and can m07+whg)wmw+q m, lbyq ove about freely within the material are refe7,+wlmqqwm 0+w)bgy hrred to as

  A negatively charged rod is broug)-dg ubd,q0 ewht near one end of an uncharged metal bar. The end of theq, b)eg u0dw-d metal bar farthest from the charged rod will be charged

  Sphere A carries a net p4q.dk 2q8g6rxz7(u uzhpt- tbositive charge, and sphere B is neutral. They are placed near each other on an insulated table. bptzhdq(6u4k-8.ur qg7t 2xz Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscoperc,7/np jb-zkl0isu i8m/l 9g positively?

  An originally neutral electroscope is briefly touched wityi +k+g wuzs6uj qj2-q a:63cch a positively charged glass rod. Thqi+6w62-+3qug :jyc zsuaj kce electroscope

  An originally neutral electroscope iwxy j:+zt74 gls grounded briefly while a positively charged wl4yjx :zt+7gglass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a nek led7 is)y/rvxfs+3(/h u7uoutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, bueo u)xlfush+is/ykd( 73r/ 7vt does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulati i0(usw qk4 v2u4bsm7ed 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 qw(4mk2v iui4 sb7 u0sthe negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Co*sunk7cb)w 5 aulomb constant $k$, which appears in Coulomb's law?

  Two charged objects up auk ,2cz96rare separated by a distance d. The first charge is larger in magnitude than the second ck,arp29c u6uzharge.

  Sphere A carries a net charge and sphere B is neutral. Tdrg52tfw/+ ;jid e9qhhey are placed near each other on an insulated table. Which strg5h2j etfd;+ w dq/i9atement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain fy./4uyuta/vusbu 8k9 orce. If the charges on both objects are doubled with no change in separatusay9 uk8u/ ty4vbu ./ion, the force between them

  Two charges are separated by a distance d and v(4wg(wv1z b:fifqo;exert mutual attractive forces of F on each other. If the charges are s zv1bow4fwgi f(:(v; qeparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. )8r9 be*vhx6z q5xcyuWhat happens to the force between them if one charge is doubled, the other charge is tripled, an xhz5b9u)6reqx8 *vcy d 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 sx+ 6 .z(yamlic )nkdts,rk t*1eparated by a distance of 1.0 m. What happens to the magnitude of theamtd(6kyx.k,s1 c* n lt rz+i) force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated byqen c7lt:e z5g; *4eyf a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the pz4 eeel*y :q;gnf7c t5roton?

  An electron and a proton are separated by a distance 0 yy;vsk vb-5, np+wgrof 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer5,;bnsy rgv+ pwk0-yv to the proton?

  A point charge of +Q is placed at thexo0z/ tyhm10 c center of a square. When a second point charge of -Q is placed at one of the square's corners, it is observ0z01 /ctxm yhoed 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 of an equilateral t*;tv )4gy: fl.kz hvjtriangle. 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 tot* gz)yv;k:4jvt .hlf a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vectobxizpvuy52 6;r?

  At twice the distance from a point charge, the strevs x.zs a+m.y:ngth of the electric field

  Is it possible to have a zero electric field value between a negative and poa0s p53za5gvz sitive charge along the line joining the 5a5p0vgz s za3two charges?

  Is it possible to have a zero electric field value between two pos/8vymauh24ax itive charges along the line joining the two chargea uy8av2 xmh4/s?

  Electric field lines near psitive y0+ fqlzr(a3l7(a)qa rg 3wv bpoint charges

  The electric field shhdrp7e w8;b(r,p.y (auhjq 3qown

  Can electric field loe : 4s65krijzines intersect in free space?

  A solid block of metal in electrostatic equilibrium is plae(1r :+ud(xv mvov/ 3iwd6bakj ugp 62ced in a uniform electric field. Give a statement concerning the electric field in the blocked 2+: a (vuxd 6i6 1k3g/u(jwvmrbpvo's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are hj9 ac b8yfe0 a5z/6ac4g5 v)m2onzegeach given the same charge, the electric field (E) midway between the center425 nzgbaf9 8z a/eyhegaovc0jc)m56 and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniei-8 pns)mr(rform electric field i-mrsner8i) ( ps directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostaticmg*nuyp/wf z-; :br2k equilibrium near an electric charge

  A positive point charemc,*w1rw 5ktddac 9( ge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a pe15d*mdca ww9tk(,rcoint directly above the hollow sphere has

State three properties of conductofzqt)ft.vi, :4 duho.rs in static equilibrium.

State Gauss's law.

  The charge carried by one eletly3d c8+.v104r e .cfgrjlfg( o7 ra* fkw(uactron 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 m ,; gxz exon*9z mnk17eit5/lakqxw(*any more protons than electrons does this g*7* qz ;,xwo m e/i 9zkex(x1la5nnktpiece of plastic have?

  What is the charge on 1 kg of ph5u z8q0tefb*rotons?

  An atomic nucleus has a charge ofih lr6,. zhk7a $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 3f46 .n;+l(nzefvk dqj nta3 n1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the 3zq( l nv f;4kn+ t3.nadnj6femagnitude of the electric force between them?

  A 1.0-C charge is 15 m from a 2 wje(-,l fmm( qqei8xsecond charge, and the force between them is 1.0 N. What is the magnitude of the slqif eq8mje2 w m(,(x-econd charge?

  Two 1.0-C charges have a force bdnqec;4*v n3uah 3:i cetween them of 1.0 N. How far apart are they?

  The force between a z/ e1 9k9uygdc$30 \; mC$ 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. If theyw1-scdyud+ygw ni : mw4zc44h e2;rp: are moved to a new separation of 8.0 cm, whdyc:mw;w2-:c1ui hnw 4ye zp+g4rd4 sat is the electric force between them?

  Three identical point charges of 2.0 mC are placed oyi fhh0*ikm h4361w;8vxqen wn the x-axis. The first charge is at the o81e hxqn; im406vykw fhi*w h3rigin, 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 origin?

  Three point charges are placed on the x-axishniha sb6b c(y/8+ *jw/n (yvq. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at xci+ynbh( (y/v habj wq/6n*s8 = 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 w 7:,gg * gj0s :zuv(yxjgut1rare located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC au(z v:ggw7rgg , 0sj uxt:1jy*t 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 point a4f j; co+guz0charge of - ufj oa;z+4g0cQ is placed 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 is at (0, 0.10 m); Q3 )wd-ym,23i.t i( g/wugmxe corp-o0e = 5.0 nC is at (0, 0). What is the magnituge-/)de.yixmw0 g2 r(po m-uio, wct3 de of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.x:o9uu1kps 6jvsc4h7 wh -;eu 0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on th7wu61ks:9pu -uj4vh xshc;o e e 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an eqal,xvx5198ncua6m +nu: tq vkuilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charg9qktunav65:acv ,m xnux+l 18es?

  Consider point charges o/q*pktlvn f1:q . 4piof +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place /.v tkp *ioqn4f1: plqa 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 chaum2mfa/q*qf 4x*pm(eajb v:( rge is at x = 4.0 m. Where on the x-axis can a third charge be placed so /eu(q2b* m:mpm4ajaq ffxv(*the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2moi8r ii,i2 s0a. Where can a third positive charge +q be placed so that the force on it is zerosri8i 02i,im o?

  A copper penny has a mat8hqsg:dyght 9k)ldsk(vja; z3 h4*,ss 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 force of gravity bzb8uc jz.t )wcu5)qz(y the attraction of a fixed proton some distance above it. How far above the electron is the proton5. zc8bwu (zc)j tu)zq?

  Two 0.20-g metal spheres are hung from a common point by nonconducting :o(3qt5 ngd sxthreads which are 30 cm long. Both are given identical charges, and the electrostatic re: 3nq sd(o5gxtpulsion 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. 8c (bs mss,cn+ What is the magnitude of the electric field at a distance of 1.0 m from the nucleu(c+ n,bm8 cssss?

  What are the magnitude and direction of t qg-1nbf qti:;he electric field at a distance of 1.50gbq :n1tq-f;i m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test chargr hd 0t w-.wq -vebrg1*arf7*te. What is the magnitude of the electric field at the location of the test charaq* rfwb7 r -w-gdth10 *vrt.ege?

  A 5.0-C charge is 10 m fromkysssor/nxam :0y ((f im 5s*, a small test charge. What is the direction of the e:x(5,mm/ kass(syyi 0f*sronlectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of uu9shb*s3f+d4y;i,ypuh w h* the force experienced by a 1.0 nC charge p4whu *hbuyp; i +*s,dfuh9sy3laced at the location of the test charge?

  Two point charges each have a va6k00z,lc .cfbsr y(tt lue of 3.0 C and are separated by a distance of 4.0 m. W0,.s0tc kyb(fcl r 6tzhat 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 mC cu8) 9+nvs m *qqf,,nfy.fj+ahuzj ku4harge is placed at the ) ,nhffk+ +*njfm, qz4y ujvaq 98s.uu50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a me zh ti.3.)rmd ksgd/3dter stick and a -4.0 mC charged.skdm/r.3i3 th)d gz is placed at the 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 9mzuh egh m;l 6 g*-whgk-fx6oid5 u0t-w0q; iare placed at x = 0 and x = 0.20 m. What is the magnitude o- hzik90hf d6uwm i0gg5l -e6 ;-;xoqthwgm*uf the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corner;kjnn16fe+ l wpd2- a44ceib ds of a square of side 0.50 m. The last corner is occupied by a -3.0 mC f -lb+wc1k6p ai4nd2dn e4 ;ejcharge. 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 the cyrf,q-c 7t(rl ,l5tn s/wnp f.vzj 6m2orners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +/,5st(6 wz7c,-nlnpy 2 jrl q mrtf.fv3.0 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 chargej 72lyzjyj1z)wk .o -khl9q*c of 5.0 mC when it is placed in a uniform electric field. What is the magnykzjhl *-j2.zkj7o1l qyc)w9 itude of this electric field?

  A particle with a che5gy -efvbo, )ada7e;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 o1 sd0hfcy0ik2 b0 xb.electric field of 6000 N/C pointing downw2 bk.dhi 0fos01 xbyc0ard. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g cap: ah-uk.ziyl9v .7 agrries 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 fghk- vz .u9a api.7yl:ield?

  A metal sphere of radius 10 cm carries a charge of +2.0 m+yj, -*yncuqw0vnsl 7C. What is the magnitude of the electric field 5.0 cm from the sphvyqy j ncul ws7,-*n0+ere's surface?

  A metal sphere of radius 2.0 cm carrir(i4,*xbn9b u qwh+)bpmdo 7bes a charge of 3.0 mC. What is the electric field 6.0 cm from the cern)buq (pm * 7b,wox9i4db+hbnter of the sphere?