State the law of conservw7 2ndczfy1c3.2d pr yation of electric charge.

  Is it possible for two negative charges to attract eaaz lzu3i3v 7 h-thq e/f6r:z-cch other?

  Is it possible for a positive5 r1 d41ntsh:b4ww rtq and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass k,ny7fp/h:hsee/8gz rod acquires a positive charge aneg,sp :z7k8y hf/hen/d the silk

  A proton carries a

  The model of the atom showsdifj9*-7 f mug a

  A neutral atom always ha2)-rbo sz qf1hs

  An atom has more elect 7g+ijqou+ (acrons than protons. The atom is

  Materials in which the electrons are bound very b9c2z f5;eieg tightly to the nuclei are referred to;zbe f 5i2cge9 as

  Materials in which the electrons are boubx+eo.pg /yl3 8f9d q8v- jhlznd very loosely to the nuclei and can move about freely withy zfp g+.xqld88e-9 ohj3v/blin the material are referred to as

  A negatively charged rod is brought na-gfng/ 5 /n,-udkghaear one end of an uncharged metal bar. The end of the met-hdg5fn /g-a u/ nagk,al bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge,nhc)hiq q0e9- .)0 kiaoks-k g and sphere B is neutral. They are placed near each other on an insulated table. Sphkaoh skqhce0ii-) kq-9g) 0.n ere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electros6izwbn)m zcbi*- ++vocope positively?

  An originally neutral electroscope is briefly touched with a positivew nr/r,x- zv 3fyhp6beio +k):ly charged glass rod. y:orf -k,6pxeb+h)znw/vir3 The electroscope

  An originally neutral electroscope is grounded briefly whkk:dtq nw/vi te3d2ha3 fw487 ile a positively charged glass w7htkfw2iqa8e dt433k :vn/drod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves i+lprtu5bs;t gz k7( *separate. Then a negative object is brought near the electroscope, but s5 r ik(+tpgutb;z*7 ldoes not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tabwcb*mp ) ;k(2hfznh 5ple. A neutral metallic ball rolls straight toward the object, but stops before it touches i)pb p2mw;n ( 5kfhzhc*t. 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 Coulomb c22lkjbjjdu7e h9w ,*konstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chyb +p p9r-fj4m45a5hqv t8 i,tboe9rzarge is larger in magnitude than the se 4i5b+m-4p5a ttjz py8 re99rvo,bhq fcond charge.

  Sphere A carries a net charge and sphere B is neutral. They are k xzxf1 a o; -q++i2zogydpt(r+ux b4)placed near each other on an insulated table. Which statement best describes ;+(bdkqz) zfptr i-gu x+o 4xy2+ox1athe electrostatic force between them?

  Two charged objects attract each other with a ceh ddgw6v+m)j1rtain force. If the charges on bothdgm )v6+j1whd objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and hdehz , z()x *je;kx;xexert mutual attractive forces of F on each other. If the charges are separ(kxh; ze hxe;x d,*j)zated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with p)vd2d;s.vkv - ke* ika force F. What happens to the force between te-2*svk) pk;vvdd i .khem 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 are separated by a distance of 1.0 m. What:m7 gw6eat z1t happens to the magnitude of the force on 1a e:mt7wtg6zthe 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. What he.royz-qe;g1 r2*u n8 n;pjul appens to the magnitude of the force on the first electron if a second -8zj onl p;g2.u *nqe ru1;ryeelectron is placed next to the proton?

  An electron and a protmf7 bzymc n:4+on are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moveyc+fbn74 mm: zd 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a secon)bwvg o(sjzy5df 1f2 ox*+d ,ud point 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 positive chargeu do sb+jyd v2wf(xz) gf,o51* 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 cent nkl1yood)-0n 5v,m3du0vxwgroid of an equilateral triangle. When a second charge ,nu xdvw o3)-yng vm0k5l 01odof +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?

  Which of the following is not a vez lcznuljmh 1g-*)ev4 17o)djctor?

  At twice the distance from a point charge, the strength of the ele3iw 7 vo)bqoz8ctric field

  Is it possible to have a zero electrickk5 y b3kj a;lff3i0k7 field value between a negative and positi0fy5i3k3k ; fjlak7bkve charge along the line joining the two charges?

  Is it possible to have a zero electric fi*( be i+jv(xe(n itqe.eld value between two positive charges alongqe*ie(n+x(.iv( bjet the line joining the two charges?

  Electric field lines near psitive point charges4dc(g2 lyg s,efc76 hs( 1oxgf

  The electric field sh2 dk 93y8xk k op7rgr1 rrl6j6czzh-e4own

  Can electric field lines intersect in freekdqlnl) ca7:z d 7g+t8 space?

  A solid block of metal in electrostatic equilibrium is placed in a unif :damvvqbm4/qobt5 xq7m5 :m 5orm electric field. Give a statement con7/tq 55b4q5 vmommq:x ba dmv:cerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of8a+.78 y5 *xriq * guwm9decvz7dgcqi equal diameters are each given the same charge, the electric field (E) midway between the cente*8q7 a5r*7uqzd+v gg i 8m.cwy9cdxier and the surface is

  A cubic block of aluminum rests on a wooden table in a eqf y7,dq9. )zoke(se oqrkcy )l7.s8 region where a uniform electric field is directed straiy fe97ol.sky8kq)o.s,r ed7( qcz)eq ght upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near jqdm.3ki s q/.an electric charge

  A positive point charge is enclosed in a hollow metallic spy(h ahme h:f91here that is grounded. As compa:hya(1 mh9feh red 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 :71 .(zxqparhh:kxk f)o pmt nxsc0*7equilibrium.

State Gauss's law.

  The charge carried by one elt2 lgcik5*-ptectron 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 mor7wvrz-rsue 4( e protons than electrons does this piecervs z-7( 4wrue of plastic have?

  What is the charge on 1 kg of*y; po.neulj6 protons?

  An atomic nucleus has a charge of 7-bykaoe.k( pl; gq3 f$+40e$. 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 andoszdy1awg 1)ht8vl j247-dxga nh.8m*hr it * -4.0 mC, respectively. What is the magnituda8 tggh4v li* )71.sw28hnx mddjr- tyzao*1he of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 Na:dnhvx:n/-q; vj2ll. What is the magnitude of the se:n:2xvn/l ld hq;av- jcond charge?

  Two 1.0-C charges have a force betweena/w78efi1jy;1vd .c.z3phsk x 8 hhos them of 1.0 N. How far apart are they?

  The force between a b0n*h-5*q ho t.c oxfo$30 \; mC$ 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 9bdtoq,7gfa 4vibc+m y 1v dv171dam21.0-N force. If they are moved to a new separation v4tmvc o+7a1d vfg29y1 b,dd7 1im abqof 8.0 cm, what is the electric force between them?

  Three identical point charges o3.,koc khq,wdf 2.0 mC are placed on the x-axis. The first charge is ,kokc w d.,q3hat 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 origin?

  Three point charges are placed on the x-axis. Agrgoats/p7 w+u ; )oovw;8rr3 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 direction of the electrostpgv3+/;7g) t8o u r aros;wrwoatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 zx p;cu2j.;gi/y 4yd65zfllp = 2.00 mC at x = 1/6 .;ic24 lzgfuljzpxpy;d5y .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 p.e6:*i kfcxm0;pk -0fibs abt laced at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that fist 0xi pk*c0fkm : b6;ae.b-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 = 5.0 iuj(m9;0)grc ipf2- viufval/ x:up4q 5n.iu nC is at (0, 0). What is the mapi0 lgjf)i4iurv .:25pq n(cau mfux9;u/vi -gnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 up wn0o/ j*)uo:g 8h twvoa+k3m, 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 netw/vhktu3 g0oa u )*8w+poj:no force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of ai er p*i0(-dbsn equilateral triangle which measures 30 cm on ii0*pr(ed- sb a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.05vhnlo+ 2u(a1 ok/my1kxxq- 3xeh w8i m. At what point, on a line between the two charges, wo+ l(vxk1mq nhuo aeh/k1x8-5x3ioy2w uld it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at th x6:h27dbd eh5o4vw l7z;cor+2ckqncmv, gv8 e origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zero?dbhe 86c: ncxvmozvr2;g, c5 ho47+ld27kv wq

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where/e zekvv6pay1 9k570m7t el ci can a th0k k6c 97me 5v eaevy71lpz/itird positive charge +q be placed so that the force on it is zero?

  A copper penny has a37qfj kd3p*a:hjtt w3 mass 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; uesm+ ;nlcl, the force of gravity by the attraction of a fixed proton some distance above it. How far above the electroul;e +ncsm;l ,n is the proton?

  Two 0.20-g metal spheres ahjl*11j bozu+ bnme54re hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, e b zhm1u+n5bl4j1j o*and the electrostatic repulsion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus had8frjl.ue znu j y9428s a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m fu.z4jn8 9 fl dreujy82rom the nucleus?

  What are the magnitude and dire m6u+vnar vsi:--(w kxction of the electric field at a distance of 1.50 m from a 50.n i :6v(-k+wa-mvrusx0-nC charge?

  A 5.0-C charge is 10 m from a small3)acw5c ;fmdcm qs4u 5 test charge. What is the magnitude of the electric fieq43f c5d 5mcwsm;)uc ald 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 e6t weip/3r va+5d xui2r)ro 1ile1i5 )a/ uir2vw6e3pdxr+rot ictric field?

  A 5.0-C charge is 10 m from a small test charge. What is the mp q2 s+wu,guk :0v4 cfh-f7rmdagnitude of the force experienced k2 ,f4:7d-f rv+pugcwms0qh uby a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance isiqa2g/bo,hw 62h;zof 4.0 m. What is the electric field at a point midway betw2h i q2gwo/ 6h,is;bazeen the two charges?

  A 5.0-mC charge is placed at the 0/+p(bi7y7j1x7gou afdk zc )bz 1v pu* 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 mar1)f oa(vcypipxz/+7jkg * uzd b177ubk?

  A 5.0-mC charge is pla:uu .o3d1 vo,svhjf /xced 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 ohovd 3vxuj/ .su:,f1a 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 = 0 aamz *fdk*vg -h5f8i ,cj3wk 7dnd x = 0.20 m. What is the magnitude of the electric field at the point midway bm,3jf d 7c*fd*z g85hvk-aw iketween them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 mhjy)gx1e8, /jvzs 7sabyv ;2 m. The last corner is occupied by a -3.0 mC charge. ves,/by7)sg; zjx1 8jmhyva2 Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Ct irt h+ag:x;:*6ju pqharges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1)apxh;ug+: qir 6:*ttj; +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 oq)* y+jogxpife2;qf r81 h4k hn a charge of 5.0 mC when it is placed in a uniform electric field4 y*ff8;+ h2iex1rq jh)kogp q. What is the magnitude of this electric field?

  A particle with a charg4 qnzxpp4u aoo) o9u3u+;1o yie 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 electric fieuo/ f6z :gu vpqq)4v,gh2p,myld of 6000 N/C pointing downward. What charge must be plv q,4 2:gfvy6)q pg/oup ,mzhuaced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. 1ip1v ap*buw3 The ball is placed inside a uniform electric field, and is suspended against the force of gr*b i3pwupav 11avity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carriesg )z:6cgcfr*r0a4g ui a charge of +2.0 mC. What is the magnitude o4) rc6g czua *girgf:0f the 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. What i/x,/, pnrfniun id18ks the electric field 6.0 cm from the center of the sppf,,/nni d xn/ru8ik1here?