State the law of consi:k0dvz4j si+7uf 6miervation of electric charge.

  Is it possible for two negative charges to attract each ot no80vc.m6nn ; mhxy-mher?

  Is it possible for a positive and a negative charge to attract each oty 6 ctpkd6u 3ugkb1l+;her?

  A glass rod is rubbed with a piece of silk. ivnbdv93 .4 jy,ho9lnDuring the process the glass rod acquires a positive chdb,vvin h9 l.jno39 y4arge and the silk

  A proton carries a

  The model of the atom shows a13v gbph9* +its dtfn4g9v) sc

  A neutral atom always an 2 l m4t1xpn4r- 8-jdun.jghhas

  An atom has more electrons than protonvap w)(:loadt6vyb(5s. The atom is

  Materials in which the electrons are bound p* op6*kel4dd very tightly to the nuclei are referred to 4dpklope *d* 6as

  Materials in which the electrons are bound very loosely to the nuclei and c uc ,oq)jel2wzwu30k; an move about freely within)0lzw,u;jk u3oq 2wce the material are referred to as

  A negatively charged rod is brought near onpg2k 5 qil; p;.0mndbie end of an uncharged metal bar. The end of the metal bar farthest from the charged p.dnp0q5ml2iib k ;g;rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Th2v i:hzwq .ak5ey are placed near each other on an insulated table. Sphere B is briefly touched wh.zwk2:iaq v5ith a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positiv5)iahb, fq0wi ely?

  An originally neutral electroscope is bc2 + g t5.m*wbe (yhyq:cst9czriefly touched with a positively charged glass rodm.+cg:qcw*sbth9 25y( etczy. The electroscope

  An originally neutral electroscope is grounded briefly while a positismg ,c h3th7p 4/es2ouvely charged glass rod is held ne2o 7h/geupth cs3m s,4ar it. After the glass rod is removed, the electroscope

  A positive object touches a neu()s xh.xc3v em7byo 8htral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does nox7. 3osv (hc )hyb8exmt touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulate vv1 1 xh3/:t18i g(kdtaet ino.fg9tcd 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, 1g.1tad(hn/ki8ofx1t :tcg vv9tie3 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 Coulomb conp(up, rdaa.0 istant $k$, which appears in Coulomb's law?

  Two charged objects are separated by as5a0vhdo w9z* distance d. The first charge is larger in magsoa*wh9z 0 dv5nitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near nj , 1p6)oufgoeach other on an insulated table. Which statement besp6ngoj1u) o ,ft describes the electrostatic force between them?

  Two charged objects attract each other with a 4n3s3,fucptox3hx1 ( pn0 olzcertain force. If the charges on both objects are doubled with no change in separation, the f43p1f(3nz ,xonct3lpx h0uosorce between them

  Two charges are separated by a distance d and exert mutual bd8 dfd1(vnf)attractive forces of F on each other. If the charges are separated (18fdd) vnfbd by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a for6bx5+/e(/ 0vijf7feys 0ae+ jue wk9ucwt8q bce F. What happens to the force between 0v(fe swiuk/ 7 +bce0uxay f6+e5tj8web /j9 qthem 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 force is now equal to

  An electron and a proton 2vrjpx. - kz-c0 blz/cl5lq*it19 rpvare separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second -5c 0 /l* tlkrlv. 1zqj rpc29xib-vpzelectron is placed next to the first electron?

  An electron and a pro0ht opww0: 7ubton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placedp:o 070ubtwwh next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Whg)/d/oahy 7 .e1dfib oat happens to the size of the force on the proton if oodg ) / behi.da71/fythe electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second po r1sdw (bschwf ,:x1w:2 bagp5int charge of -Q is placed at one of the square's corners, it is observed that an electrosts:s ,drawfc1 p2gw1b(bh:x5watic 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 plht) rge7g/ omuk72*,-fh fxgo/f5ipt sd7/ljaced at the centroid of 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 of +Q placed at one of the other vertices?t o l g 77osmfdx*j,h7gg5k/p2t/ ur e-iff/)h

  Which of the following is not xq :t0 zhcz1 wz6+u9zia vector?

  At twice the distance from a poin 20rsxh .6zqhl3yy,ly7za7 gqt charge, the strength of the electric field

  Is it possible to have a zero em3xb9 q:vzl(y ev 1.cjlectric field value between a negative and positive charge along the (19lyq 3vmb xjz.ev c:line joining the two charges?

  Is it possible to have a zero electric fis)0wsr;2 p pxleld value between two positive charges along the line joining 2rs 0p)lxpsw;the two charges?

  Electric field lines near psitiv :.tygf-c0avd e point charges

  The electric field show0q//e54 k ppnjwn qg9 soiu;e3n

  Can electric field linem(x(ov34bx -0hk ;d3q o/.wfpm hvppus intersect in free space?

  A solid block of mettx 9ud6f.gru 1al in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning 1fu9x 6grtd.u the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diam/;gucze 2 fg4bm tt(j8eters are each given the same charge, th m c( 2e;bzujttgg/f84e electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where nl4e,(xnel + .drpy8w a uniform electric field is directed straight upward. What can be said concerning the charge on the block' .le,pwn(d 4xy+ elrn8s top surface?

  If a conductor is in electrostatic equilibrium near an electric chj( o 5)n 3.zd.xkwkex9xzu+ybarge

  A positive point charge is ed4(/ ux2( ;m2 rlittsm m2qgncnclosed in a hollow metallic sphere that is grounded. As compared to the case witc;tq 2x tu(mr42m/g2n(md ilshout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of co2kr o5vzkzvo9xyy91 .nductors in static equilibrium.

State Gauss's law.

  The charge carried by onekd, ;mjjrh d*j2d)o pcshf 2:) electron 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 many mor85)e/eyaux/ pvsq dd5e protons than electrons does this piece of plast/a8dp ey dxsqu)e55v/ic have?

  What is the charge on 12m.2g0i/ewx eaan th: jz3ee5 kg of protons?

  An atomic nucleus has a charge of c5fggng/,yz9-z( 2myd j4sg p $+40e$. 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 -s8bn wymsfrka c j 5w408(ke2-n42 omo4.0 mC, respectively. What is the magnitude of the el m2srjoe8nck-450w on fmbw8(y4a ks2ectric force between them?

  A 1.0-C charge is 15 m q w.o9f14leb( dg/sejfrom a second charge, and the force between them is 1.0 N. What is the magnitude s9.1 4/eqoegj fbl(dw of the second charge?

  Two 1.0-C charges have aqqf.rgh.k rf2+( k*o d force between them of 1.0 N. How far apart are they?

  The force between a q af hgr4t7a14$30 \; mC$ 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 forcewm ee8 g7xoimanaqqyh+302 ; 6. If they are moved to a new separation of 8.0 cm, what is the electric force between themq36 8a0; ah xnqwmmeey i+7o2g?

  Three identical point charges of 2.0 mC are ); bmfrnl (:rxplaced 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 xrrm b)f(n :l;force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is plam+h 7 .r2qteuyced at the origin, -2.0 m C to thu .t2yh7m+eqr e 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 l5dbp5yxu9 hdxnr(n a+lh(4s; qd:1 : dug7ssfocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC atx4sa dn1rsq uddbh5:h +spuyd(ng9(lfx 7;: 5 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 crp.8ua9t jc4k m a9yz,enter of a square, and a second point charge of -Q is placed at the8jtua94zykm9 ,r .c ap 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,z:weg+9o 3(da 84rxbsjry x* g 0); Q2 = -1.0 nC is 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?dw e+9x(bjoxg:r*az34r s 8gy

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is atovo ;v788uutwg h5jg* (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.5 v 8o8og*v7jtwugh u;0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equil syclspx jq.1 t:;8ft2ateral triangle which measures 30 cm on a si .q xl82;fs1ttc: sypjde. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q atw(q5 9w4 fdttnd +4Q, which are separated by 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 w 9ft(w 5qdt4tacting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x =hs z wl(xg+i0 0lc/+ji 4.0 m. Where on the x-axis can a third /iz0gl x+j0w(c+h silcharge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at 1(ux8zacot59 fq*hk a x = 2a. Where can a third positive charge +q be placed so th a195 hcqx8afk(t* zuoat the force on it is zero?

  A copper penny has a mass of 3.0hb-izl qhta;0,d(:sjqidx 4 * 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 o,ni5+rac9q s4 ct8 ci;6mxjes:p ip-against the force of gravity by the attraction of a fixed protji n c-qeaxoic4+:r9; mt,58 cpipss6 on some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common poin9+ rwjd4sqry2 xkpg91t by nonconducting threads which are 30 cm long. Both are given identical charges, and the eled 9qjr9s2y4p+ gkw1 xrctrostatic repulsion 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. What is the magnitude of the electric 94lj;e4snlpl h p ,,4 cy8ynswgemd;2field at a distanc4 8lseyd,y ,2; n9lpep4mg wh;jc4nsle of 1.0 m from the nucleus?

  What are the magnitude and direction xq)-t vx2,sbl of the electric field at a distance of 1.50 m frxqb2 ) -vstxl,om a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What m5q)q(c o6(sfgfo sgw;adp 1*is the magnitude of the electric field at the location of the test chf*cqo(;f 6gwm qss)a gop(d51 arge?

  A 5.0-C charge is 10 m from a (k; dxwyxl*8 sy: 1cn3cz5-p3buqahe small test charge. What is the direction of the eleadk 8xpsy3*zu(ccxle n; 35-:bq1hy w ctric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude) 1hiqisy (cifuk,;, t of the force experienced by a 1.0 nC charge placed at the location oft, ;(isf1kqhi),uci y the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dueyi6s .m4r s h rpkwd6+029aaistance of 4.0 m. Whr. ys 46i+uwph mka0as96e2 drat is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at abg-.h 8s*xir-a(asvs0 u/r d the 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 mark?r-s*(abvai. - 8xd0urh /g ass

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC char0 h8wziy( q zxrjy9o,3ge is placed at the 50 cm mark. At what point on a line joininjo3qry0(h8zw ix y9,zg the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 44 bealzr- ob0ln qo8(0 and x = 0.20 m. What is the magnitude of the electric field (8a4l -n0zb4qolr e boat the point midway between them?

  Three 3.0 mC charges are at the three corners of9 3 f6g1vm3gkbxlpuw*n n-(pv a square of side 0.50 m. The last corner is occupied by a -3m*- gpl6xnf 9nvp1wbuvg(3 k 3.0 mC charge. Find the electric field at the center of the square.

  Consider a square whi g: vjq8bhmmq2e.c +4dch is 1.0 m on a side. Charges are placed at the corners of.4j:qvhb2mc gq8 m+de 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 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 elect(t9y6.3j- -xtglse mwwjiog5qjkr p83o 8/bnric field. What t.eprwy(69ojtg83ilw- x53omj8 k q/g b-sjnis the magnitude of this electric field?

  A particle with a char/: -vmqbzz/+oy v.3 datdr b7oge 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 elecue1ql of9 8mroz kd89+tric field of 6000 N/C pointing downward. What charge must be placed on the ball for it toq9 m 8 o19zku+olrfe8d be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The balla)0dlun h4:vy is placed inside a uniform electric field, and is suspended against the force of gra:l4 vdyh0an) uvity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What isvpu1r2w7d m90nh9n 7ok4n fqc the magnitude of the electric field 5.0 cm fro p n7rn0 qn147owv9 k2cmd9uhfm the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3aed;i fh(f)re8 s,km (.0 mC. What is the electric field 6.0 cm from the center of thedies(kah;(rf8m ),fe sphere?