State the law of conservation of electrybafy gbl4-;8je ,- zh .qwxx0ic charge.

  Is it possible for two negative chargest+1qlvs3c :kzdv z b7+t 5s/pu to attract each other?

  Is it possible for a positive and a negative charge to attract each otd-a.e;f5o::w z:dbws uw/bqf her?

  A glass rod is rubbed with a piece oy z;lj7u.2g enf silk. During the process the glass rod acquires a positive charge and the silknu;yl 2gj e.7z

  A proton carries a

  The model of the atomj q 3:)-a6/ahvzf fp;spyxw; sm(+ qrp shows a

  A neutral atom alwayp)i,v gbs/mrby oq()qkh16f,s has

  An atom has more electrw v+)a-u,h lurons than protons. The atom is

  Materials in which the electrons are bound very tightly to the nu kz*3 ejp-ene1clei are referred to ankee1pe*3- zj s

  Materials in which the electro ul7wvg+ 3er p*ry(;z 7z+rt0a7tqddug upe 5+ns are bound very loosely to the nuclei and can move about freely within the material are ref +*g 0urd+z73 qp ezru(lregatw+7dvupt75;y erred to as

  A negatively charged rod is bromiibpg747+ nw ught near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chab w7+4png7 imirged

  Sphere A carries a net positive charge, and sphere B is neutral.3tpomakv/:cv,jve9lb/ -5 su They are placed near each other oj3bta c o/ /ps59u-v,ke:mlvvn an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod dyr,b8ae-+h* i+ gvolcharge an electroscope positively?

  An originally neutral electroscope is brieflylx(f d+rofnqft 3y2/wh* f h,) touched with a positively charged glass rod. Tfyw +x2,q )fh dto3h/r fn*f(lhe electroscope

  An originally neutral electroscope is groung8sa.f7rqh1(*bih qqgkra)q 5kq 2 ;m ded briefly while a positively charged glass rod is heldqhgk. qa q;fb5q rs( m*h8q a17r2)igk near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the l7fsh dkqru r5y9-s1i6eaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens i-s19k5q7y sru6hrd f to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral mehov:dta5h : 8 wb+u-lbtallic ball rolls straight toward the object, but stops before it touches it. A secon5wdu btvh :albo :-h8+d 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 Coulom3uevckx 9, b5cb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fia9t9xmvn+hq 95 fgmi6rst charge is larger in magnitude than the second ct 9 9+g6vmih5xqfnam9harge.

  Sphere A carries a net charge a00 gzww nd8hw dj7b,9cnd sphere B is neutral. They are placed near each other on an insulated table. Which statemenz cg7b90d ,8dnj0w hwwt best describes the electrostatic force between them?

  Two charged objects attruisz9o,( rg6w* xk)u wact each other with a certain force. If the charges on both objects are doubled with no change in separation, thew*)9uuws(6g r k,xzi o force between them

  Two charges are separated by a distance d and exert mutual attractivf ar 6e;riq(gx 7t:38 bfj3kwce forces of F on each other. If the charges actj3kqf:7 i;8g 3frewabx6r(re 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 jejuhhuop,wh4zl9rf985) h.l*x y u*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 va.ulh*j9ezh *fhl r p59 jo)huxy,8wu4lue? The force is now equal to

  An electron and a proton are separated b hqvhv50:sjqx ls):)dy a distance of 1.0 m. What happens to the magnitude of the force on the proton if a hq 0qjhs:5) xv dlsv:)second electron is placed next to the first electron?

  An electron and a proton ao(5. sro(v8kl9(f 8u8 i;owcdgl ajbzre 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 placed next to thef8orows9jzvdcg 8k ( ibo(la( .85lu; proton?

  An electron and a proton are s 8seb a)2v c)g:hxsly:eparated by a distance of 1.0 m. What happens to the sisa:h eglv 8x) y2:sbc)ze of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center off)+(blb aprs5u3v o 4ppql 2s(b(jv-t a square. When a second point charge of -Q is placed at one of the square's corners, it is observed that an electrostatic force of 2.0 543)ao-+lts sb( bp(qf rvpp vbu2 l(jN 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 equilateb0 / bub f4 0j0iltlzju53a;fpbc-v.cral triangle. When a second charge of +Q c4v/ fl lj3zb c.ij 0t0bub-pa bu05;fis 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 following is :/u4,cx j:tan0jehl9kv wmj r,ic+z)not a vector?

  At twice the distance from a point charge, the strength of glft,c5 7r1zd9gu c6a the electric field

  Is it possible to have a zero electric field value between a negativum wyvw6 u,4-,59u/udacov aae and positive charge along the line joid59vva mu4 w/, ac, auw6uy-ouning the two charges?

  Is it possible to have a zero electric uf8vx jbucxmt,); :w+field value between two positive charges along the line join,vcmbx tfwj8u);x u:+ing the two charges?

  Electric field lines near ajyum ds4u-e6p2nz0 8psitive point charges

  The electric field s4evsv5s hx; yfu36: fahown

  Can electric field linei8q r;s f3 83ve:h4faft.wtqgs intersect in free space?

  A solid block of metal in us-h8zj(oie 8 electrostatic equilibrium is placed in a uniform electric field. Give a s8 jzh( oius-8etatement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal dia7sc8 0hl8 1vi7v2hq7h ui fncimeters are each given the same charge, the1 un fh0ci8 qi8 vhcsh2vli777 electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region ga7c6whix,q9 where a uniform electric field is directed straight upward. What can be said concerning the charge on the block'sqw 6acx,g 9h7i top surface?

  If a conductor is in electrostatic equilibrium near an vo+, gs9l v:/mkv 4u/ovokjz *electric charge

  A positive point charge is enclosed in a hollow metallic sphere x2p9a4mfmh1.j9 cbyk that is grounded. Ap9kfbh mj29.c a4x y1ms compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrm5k7) fy8wg ub.y,k mjium.

State Gauss's law.

  The charge carried by one electron 4w9+v sp db8vuis $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.pj4g*;7iaid , 9 unbvp00 mC. How many more protons than electrons does th9p ,7ng 4i pvi*adu;jbis piece of plastic have?

  What is the charge on 1 kg of proto qd7h+l7 i;oj6pddf* rns?

  An atomic nucleus has a c jz;i.je5(j xch5 e-uyharge 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 o *m5cfw:+ a 2aq vqsrrh8t)) )sx3antkf 2.0 and -4.0 mC, respectively. What is the magnitude of qh 8m+v fsw) rqact)t:a *rsakxn352)the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betw.4q lv1yfjfk4;y ae/ xeen them is 1.0 N. What is the magnitude1lf4/ eaqx.kfy; vyj4 of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How fa eqxw 5ut:bfns nzsk4.u:n;q+ /)kbp8g/w*w pr apart are they?

  The force between a l g6o,dr v6h( 3ty(;.lez zaan$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apartiun(y5 ,xu5: s9/do qf;dcj nq, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric foy 5/iuf s9d;(: nqcnqo,ju5dxrce between them?

  Three identical point charges of 2.0 mC xsm m ;*(5x;c bhwcvjc+7ju *e8lm; fvare 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;m j*w l;+8;e5xm(cuf c * mxvcbh7vjs 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 thncj,qq29jlj+ e 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 at the 100 cm mark. What are the magnitude and direct2 ,jq9 +jqjlncion of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the followin d dc44g;1av/qfa c39hrk z, zvlwdqe7kg43-w g positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is,w d/v;zd vq 4grzk4fwh3e7c4 qgla -c3k9da1 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 se zn1g(b5mbwcd 1**b) tl o,ofscntn39cond 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 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 c,9t5z31(m )cb*b 1 tofwc *lnbgdonns orner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.1lo2*6scynrf +y /.y v+merep0 nC is at (0, 0). What rs6ry *me+lnyv /po+1ce.2fy is the 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 dvdectw7, bkh,3ve3-at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC kddh ,eeb, c 3wv-v3t7charge?

  Three identical charges of 3.0 mC are p2c5 yly+bwqxr6i3f-vcm 9 5ttlaced at the vertices of an equilateral triangle which measures 30 cm on a side. What is th9 q t -brf 5x2cmy+5yvlwt6c3ie magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of+ aj:8qlifuii) m.ke84ltk 3 /e 6ojya +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible toiii8lamlau6ft4e./8 )j k+ kjy3 o:eq place a 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 charge is at x = 4.0 m. Where ohondkl hl3 0 , 1/x,cx)qce1hnn the x-axis can a third charge be placed so the net force oncn hq3x/cd0h keo,1h ) ll1xn, it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where candv*znk u8u+ 8n a third positive charge +q be placed so that the force on it iu8+vnud z8 k*ns zero?

  A copper penny has a *-,fhg.q g6ygi sm rqg56 d)yymass 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 agains9u/kb mrm) /aye:y- lut the force of gravity by the attraction of a fixed pru:-leura y/9kyb)m m/oton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are huu2+p t4,c d a.oedyuktc7(xb/ng from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between th.tyub 2 ca4k coxtd +,/7p(edue threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40wi .9say4zn)ye. What is the magnitude of the electric field at a distanc4y n) izay9.wse of 1.0 m from the nucleus?

  What are the magnitude and direction of the ez loq:.nk(7fe+,1q cag z fc+ilectric field at a distance of 1.50 m from a 50.0-nC chal.1q ezq7kcfogi z(f+c+a: ,nrge?

  A 5.0-C charge is 10 m from a small test charge.2n xz2 n oiuhzd i9z31f0op4(j What is the magnitude of the electric field at the location of the test 34ozf092znu 12( on ji izhpdxcharge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of tky ( (lrc/53h8akp qaihe electric fielhk3(pcir /ay( q5l ak8d?

  A 5.0-C charge is 10 myj1p,b e mibh o1/ vhp)(uk.l1 from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed juvb o p m1yi(e.h1pb/lh1 k),at the location of the test charge?

  Two point charges each have a value of 3.0 C and are seprau9509 (ivl rrb 0 7+c)ooy+mflx jagarated by a distance of 4.0 m. What is the electric field at a poinr5ai7j x9o r+g)b0a +ocl(rl 9v 0muyft midway between the two charges?

  A 5.0-mC charge is placejfu)e67 ,lizq 2ksym3 d at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. Whatl7)qksmzy 36fej u2 ,i is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 d- 44jl1kix8 c3xmqd tcm mark of a meter stick and a -4.0 mC charge is placed at 8md-jki1lxx t44 qdc3 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 are placed p(t0j+y0om zjy g97gtd31i aiat x = 0 and x = 0.20 m. What is the magnitude of the electric field at the potggi+1y 0 0 d im3p9(7tjzjayoint midway between them?

  Three 3.0 mC charges are0rkvfxoy *k:j31qi :v at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fiei:r k qy:j0o3* 1kfvxvld at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placzc1p5f-azsip2n aq)t vk y477ed at the corners of the square as follows: +4.i7a51yzs v2)a7fk- pncqt z 4p0 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 place b+hgg(+j ed:bd in a uniform electric field. What is the magnitude of this electric fiegh b+(egjb+:dld?

  A particle with a charge of 4.0 mC has a mass 5 p;byn 2enp-vof $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is r)d7nr9ps fs9placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball rsp9n7 sf)d r9for it to be suspended?

  A foam ball of mass 0.150 g q.(w) ciu 4cgbcarries 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.bcq4w u) gci( of the electric field?

  A metal sphere of radius 10 cm carries akbghb 7o: 4t;i6duw e9ejd (-e charge of +2.0 mC. What is the magnitude of te:-eo 4kwje7hdg;6 9b u(tbid he electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Whatq ei xpy43v7d/ is the electric field 6.0 cm from the center of the spherevi xy/3 pqde47?