State the law of conservation o g4nuzl ./i9wjc pp305pf) vdgf electric charge.

  Is it possible for two negative. /l)w-mdo rzvnz5vj)i2hjs/ charges to attract each other?

  Is it possible for a positive and a negative charge to attract each ota catu7i+uo e7d-q(+-ydc:u xher?

  A glass rod is rubbed w -qc4,v 2 lslubfrn16pith a piece of silk. During the process the glass rod acquireunrcqf-,spv24 ll61 bs a positive charge and the silk

  A proton carries a

  The model of the atom ney:)y . uflp(shows a

  A neutral atom always hmq88n a,b4ei c xyv h(n7;p*zxas

  An atom has more electrons than protons. The atom isdg)pm ;qzsns+6m . y6u

  Materials in which the electrons are b z ;vjzhqqle: bfb2(+9ound very tightly to the nuclei are referred to as9 jqf:q+;eb2 zvblz (h

  Materials in which the electrons are bound very loosely to the nuclei and can mo tj79cp2w)tuy;xp fr8ve abo y9cxurptw87; t 2fjp)ut freely within the material are referred to as

  A negatively charged rodn3aaxp7j .fpb ejiqyl p1k* 0dua(cx8y5-.t 9 is brought near one end of an uncharged metal bar. The end of 1 .edkp9ba uj f.ni 7q jya0ac5px(8l*y3px -tthe metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is n.z *4wpt /e bwbc5.o8xsp c;cneutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statemen;w8.xsbc/.c* bwp zn 4opcet5t is correct?

  How can a negatively charged rod charge an electroscope podx xzi;*e ovrm m3w:3/sitively?

  An originally neutral electroscope is b1ey9 eiv :gp*c-dmf 7yriefly touched with a positively charged glass rod. The eli:-e dpc7yy vf*eg1m9ectroscope

  An originally neutral elem) cja7m q(r-jctroscope is grounded briefly while a positively charged glass rod is held near it. Afterc ( jma7r)j-mq the glass rod is removed, the electroscope

  A positive object touches a neutral eleco8l)vd 9*xo e w*y*2o ,dqj7uhmunb8otroscope, and the leaves separate. Then a negative object qb2 9w*ohdo o7n) lovmj8*8u *y,dxeu is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutralod:ot;n ai60z 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 t6 toida:no 0;zime does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constant 5o 5adlmzhu+a0 w6y4 ; ,hg2pr)behkm$k$, which appears in Coulomb's law?

  Two charged objects are separated bt;it dbehz 3m2,3*k8i ztq3uty a distance d. The first charge is larger in magnitude thanmzzbtt, thk3;*qti d8 eu3 32i the second charge.

  Sphere A carries a net charge and sphere B is neutral. Tx prdoc e )gz3y9,9;hoxx0sa 7hey are placed near each other on an insulated table. Which statement best describes the electrostatic force between t9hxoozy9g,r; 0ed) xxsa3 p7chem?

  Two charged objects attract each other with a clixu-(w4 teb- ocizt m:/afc:0 zl 4:zertain force. If the charges on both objects are doubled with no change in separation, the force betweebwat( z:u:/ cl i4mi40c -: zx-tzelofn them

  Two charges are separated by a distance d and exert mutual attractive forcew3laj yv8 xymxr 5el9xu*8o;)s of F on each other. If the charges are separated by a distance of d/3, what are the new mu89jxlxl3e)*uyo; vm8wy 5x ar tual forces?

  Two charged objects atmyz,k;+pjece(.wd0 maix 1y3tract each other with a force F. What happens to the force between them if one charge is doubled;yk 0ameyxwm31 e .j( pd+izc,, 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 ux ;nl+ r9y;lbz3 uta +hw.o0lm. What happens to the magnitude of the force 9;wl +bh;zayxu +o0 .ltru3lnon the proton 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. , wdoixi9 *+i.libvk c tu6c;; What happens to the magnitude of the force on the first electron if a iwt d+u6clk*b;;c ioix ,9.i vsecond electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happezsrg,xaa-d i46hp) ji8d b4 (ens to the size of the force on the proton if the electron is mdzdbshijp-a)g 6 ,84 e(xai4r oved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second pe bu1ins h1f (.cdhz.0e 5lm-pmf1 r5roint 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 1idsm50z.b(p1me.hrh 5uffer1c nl- 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 equilaterao4 ek5d 5(bzmltbhc1) l triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic forceb5 )kezb5 41ohct( ldm 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 vector2fd*es 19k m.m1chwqc?

  At twice the distance from a point charge, the strength of the electric fiinuq cft);e1;eld

  Is it possible to have a zero ed(ges *4s. jjq x9vae:8+xlwelectric field value between a negative and positive chjed+jsea *l q: g9ew4x(s8xv.arge along the line joining the two charges?

  Is it possible to have a zero electr.erwlyt6c6 c7ic field value between two positive charges along the line joining the two charges?l e.6wrcc7y t6

  Electric field lines near psitive point charge/el4dvih139fwxhoiizxfao3ld2 o p2 ; 9l)h0s

  The electric field s nqfiinx: nv8y.cv gq 0g1928rhown

  Can electric field lines intersect in fre- gv d3th7n-o8wzzl f416diaje space?

  A solid block of metal in electrostatic equilibrium is placed in a umi9p 1t*g g;q4ub3plpv9v3p/ol2dw f niform electric field. G mg/wl 4; qpu3pf 9do v*i1plpg3b2tv9ive a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal spc5(, dib lh2h)of,b;opi;hd phere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surfacb,, p h;2lf)o(phb ihd5io;cde is

  A cubic block of aluminum rests on a wooden table in a region whefo29bi4qd78+ v rdu jxre a uniform electric field is directed straight upward. What can be said concerniij7+u2 94xdv oqf8bd rng the charge on the block's top surface?

  If a conductor is in elecq4)j:h0 aaz ljw5hdo )trostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow m do6urpj:t55pj)sk 9 8p-jss ;us*bmhetallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow su8 dbsj6;9p pmjpr-)h5tsso5 j:* u ksphere has

State three properties of conductors in stati.vnuhi1j2 *e571 q*p o gbccbbujn(p*5ps- wsc equilibrium.

State Gauss's law.

  The charge carried by one electron qqsc9yspm* w w*/5n)bis $e = -1.6 \times 10^{-19} \; C$. 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 protoqnfy +543uvv wwh9ney v93z 6ons than electrons does this piece3n9euwyoh+5 49vwq 63 fznyv v of plastic have?

  What is the charge on 1 kg of pro tp1a2czyt* +htons?

  An atomic nucleus has a charge /d-8ymceere .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 chgezzc ;lju2*0u*ih)o zl lc(,arge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force z*oi(h2l ul0zlcecju* ,;g)z between them?

  A 1.0-C charge is 15 m from a second charge, and 3ef, 3 zmqs,lh vjp)m- y7jxc7the force between them is 1.0 N.3-vmj l,eq jh 7) czyxf,73pms What is the magnitude of the second charge?

  Two 1.0-C charges haveg0c5kzoos82o*fiv d( a force between them of 1.0 N. How far apart are they?

  The force between a 7 c7lx(vegh u1$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience :yl:ixce8 ;8:bwpfwqs.v: vu a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the elect:uiww8 l:8:cqsf v:b xvyp.e;ric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. 7( y ;8a/rla:e ithyq u4qyui2xijr/ / The first charge is at the origin, the second to the right at x278;i:i (q/je4/ryityl/aqarx uhyu = 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-axis.6 baz)ig386mmsu :ivg 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 areus3 6gi6 )z ia8gvmbm: the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the followd, :1x4(l )lfdizurwying positions: Q1 = 2.00 mC at x = fw lu,zl)(yrddx 41:i 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?

  A point charge of +Q is placed(58vf inmno;djuc 8y5 at the center of a square, and a second point charge of -Q 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 cent(mio5 vnf;dy5 8 ujn8cer. 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 = 5.0 nC isz.2 2akqd bu2lhp ,gsk0p7s4e at (0, 0). What is the magnitude of the el z.bkphg7 2 psaqks,42u2d0net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.m;ui8)aowyum )2r 6lr30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net forceo ) r)um6amlry82uw i; on the 5.0 nC charge?

  Three identical charges of 3.0 mC a h3+ phg6b ;v3rr om0feggn+o+re placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the ch+6v h0gng gr+rm o 3fb+3;hepoarges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. a7 ic0yj 3wr.t 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 actaic30r .wj7 yting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Where 15yvn z l4d4kmon the x-axis can a 14 kvynzld 54mthird charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where cawls( p 7iuq:x-0igma/ n a third positive charge +q be placed so that the force on it is zeros0/ gwqua7mlip-x: (i ?

  A copper penny has a mass of 3.0 g. A total o: ye9;uorfh() cfzyk) (8barjf $4.0 \times 10^{12} \; electrons$ 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 attraction of a fixedb(7s(we d .s,h d7nlny proton some distance above l ,.dh(nn s7dsbw7y e(it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductingrr5l6b6q x gypc0;j z: threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threadcp;yz:b5x 6 rgl0jq6rs is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge ow8uoj9wn 1hdn 4b ).8olzbij7 td:kw,.vi2n ff +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nuch .1u9f,)d nb8i :iwtv2wjod n. 8l4kzbno7 wjleus?

  What are the magnitude and direction of the electric field at a distancei 1mvggd(nq 9. of 1.50 m from a 50.0-nC charg.gm 1nvq 9dig(e?

  A 5.0-C charge is 10 m from a small test char o wp01g 9wj fxc*aqur(,lx4/hge. What is the magnitude of the e0op xal xqh/,wcf(wj rg9u14 *lectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the a huujy a2/ 44hx-rbu-fuw3g3 electric fuu2ar4 4h- 3 jhyuwgb3ax-/ufield?

  A 5.0-C charge is 10 m from a small test charge. What is o-+hv9 m45 c.raxsjnnthe magnitude of the force experienced by a 1.0 nC charge placed at trn .j+ x-5ao4nhc9smv he location of the test charge?

  Two point charges each have a value of 3.0 C and are separateklo vn1n:: g xl;i dklg:2tp;+d by a distance of 4.0 m. What is the electric o: n:ltg2 ;xplngk1;ikvl d:+field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meterj+ kc3lf yrf- ;88 a9bqbg* d:y*shqmj stick and a -4.0 mC charge is placed at the 50 cm mark. What is th3+-;mrahy:fbqc8 y df * jlqjgks 98b*e electric field at the 30 cm mark?

  A 5.0-mC charge is placenl7jsb6 8. b/l39vlvozx y 0cyd at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges isyc8olzjvl x.6bv 7/ n9y0 bl3s the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at 6c0q1 h(0ze(hwjx mq q-9pmftx = 0 and x = 0.20 m. What is the magnitude of the z- h1(9t0e60(x fqwqcjmm pqh electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of sidgz(z/kh mua 6dh9x;mx(3o; noe 0.50 m. The last corner is occupi;xa dm3guo zx(nzkm( ;9 o6/hhed 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 arew e8i n*s/wdhqu/+54c1la81mjm8 rdtmm s 9ni 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). W/cj5n4i*eim1lm9a1 /d8n+ wmsuqw 8m s8t hrdhat 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 u, 4/cxznurjdgxted7y 2r905 nniform electric field. What is the magnitudeedt, yz7ndu0 x9/ 2j5cnxrrg 4 of this electric field?

  A particle with a charge of 4 kfp4)mmd1)mv.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 isc*m9wf(tq4 ) layvi9f placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to y)(wftfv * 99mcai4lq be suspended?

  A foam ball of mass 0.150 g carries a chargepx/cxzh- -atp,gg85 eioy 22u of -2.00 nC. The ball is placed inside a uniform electric field, and is s8-/52uiphagxpto czxe -g 2 ,yuspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 c(zqi.xz r djb1yhv 4.:m carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surface?1.hbxv rzz iy:q 4dj(.

  A metal sphere of radius 2.0 cm carries a charge of q x3hozy339,rtp tm: p vtq,x.3.0 mC. What is the electric field 6.0 cm from the center3 q r:,tyvp, p.otzx xm933tqh of the sphere?