State the law of conservation of electrici c*e+w95,b6ehrfn ic charge.

  Is it possible for two negative charges ,:ea/wzz(d wn85rc--hve dn zto attract each other?

  Is it possible for a positive and a negative charge to att ubsvy +tcr+ g 65//v:ut5lxjeract each other?

  A glass rod is rubbed with a piece of silk. Durinetw27a8v nyx(g the process the glass rod acquires a positive chargen7yt(x 2eva8 w and the silk

  A proton carries a

  The model of the ato4a.udq q:q98ht rjas 6m shows a

  A neutral atom always hasipa -enq p41w1

  An atom has more elecd1. xo:a;qbagnkafpw l1l 322trons than protons. The atom is

  Materials in which the electrons are bound very t1j.p.bx +s zasightly to the nuclei are referrejap+z.1 xb.ssd to as

  Materials in which the electrons*s u8w*k98jklpos , yb are bound very loosely to the nuclei and can move about freely within the mate*ss*9 kp bljk,yuw8o8 rial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. The :jc2o3be5 j0e+nbkhc end of the metbk0ehcc52 e b: 3jnjo+al bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere s7vfto0ug 2 23.v ikeoB is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?oev kug.0s 32 7fovit2

  How can a negatively charged yfecs0gj(wxxh9e-z6 38v 3z arod charge an electroscope positively?

  An originally neutral electroscope is brieflyrd2bo q, ,f1dy touched with a positively charged glass rod. T2q,b, r f1doydhe electroscope

  An originally neutral electroscope is grounded briefly while a positivj*h,dawz ij.t6k .r p+ojz+(vely charged glass rod is held near it. After the glass rod is removed,6pdkjhtva *zo,(j . iz .+j+wr the electroscope

  A positive object touches a neutru )m x),kk*j)sq/ mtxb-tr cr6al electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to themcmxkstrxj bq*u ))-t )6/r, k leaves?

  A large negatively charged object x9fh(ob uw5c3z e: g4wis placed on an insulated table. A neutral metallic ball rolls str:gw3xc5bohfz 9u e w(4aight 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 the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Chh x4;mz 2d+sd j.nv5boulomb constant $k$, which appears in Coulomb's law?

  Two charged objects ary1 br19a tcjp-e separated by a distance d. The first charge is larger in magnitude than the second cha1c- 9tp1b rajyrge.

  Sphere A carries a net charge and sph8fd 7*t1kp8kqmnnh ;bere B is neutral. They are placed near each other* 8nh fkbtp;n1 7mkq8d on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain forceqirkd8f(7l ahu-u90k. If the charges on both objects are doubled with no chakhd8a7ql9u-ir0 kf u (nge in separation, the force between them

  Two charges are separated by a distance d and exert mjtuq5 l*c1y5qutual attractive forces of F on e lc15*qu qt5yjach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract e 7divlms6pr7 ,c7yvlu/q 9)d5ec fom )ach other with a force F. What happens to the force between them if one charge is doubled, the othcld 7lce) 6r/ 5ivqfpvmm dsuo)y, 797er 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 mx .8o.rabsmt; . What happens to the magnitude of the force on the proton if a seconmt.rsb axo8 ;.d electron is placed next to the first electron?

  An electron and a prot*01dvl qxs wz ls(qk0+on are separated by a distance of 1.0 m. What happens to the magnitude of sl 0 w1zxqd 0v*(+sqklthe force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated 1ntarfjz;+ c+ mho0up ix 8p(5by a distance of 1.0 m. What happens to the size of the ++ncfur58 (pmp0 ioz1jh;t xaforce 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 of a square. When e2)*w npc iead5l+o4 m;fm8kua second 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 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 nu c;2fe8 ap5w *mlikmo+n)4edet electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid oijoy bp,7 r2edq/ie -8g95kuff 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 centerg8r9 -e5/o,i jpb fqkie72ydu charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following isq/lv* i4nvn/h not a vector?

  At twice the distance from a pointv ( 60rurwbo( kf8vs(j charge, the strength of the electric field

  Is it possible to have a zero electric fi2fsvesu (vt9n )brm e(p+k4mbdy ,* 3qeld value between a negative and positive charge along the line joining thrpmykb4(,3 tu *sene db+q9 fm(vs)v2e two charges?

  Is it possible to have a zero ejwvto ts f6tt; 4d) ;tg*3u4jnlectric field value between two positive charges along the line joining twv*of;tt36ntgjtu; t4)j4ds he two charges?

  Electric field lines near psokephe 4+ 2haqnvk:bf+5p51 zitive point charges

  The electric field srzhf0fqa)o. a42sc +hhown

  Can electric field lines intersect in frev k6wj6gb-*jfe space?

  A solid block of metal in elecon0q:wwe77h bb.q r1ltrostatic equilibrium is placed in a uniform electric field. Ger. qbb won771:ql0hwive a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow me eg;hax)vm :z2 um-ye :ox3.yhca3)nm. :gcyq tal sphere of equal diameters are each given the same charge, the elect.3xhem)x2y:ycc-mgua mv he go) nzy:a 3:.q;ric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a w *,pb;uf0,oz- x1yql j vxs9pwooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge o x1,-pbq ;*ljpfyvsxu 9,w0zon the block's top surface?

  If a conductor is in electrostzcf;,letz ;dm owqg f;b80 ju(7(gmk; atic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grc*q zorl0uu p-8to6s9 ounded. As compared to the case without the hollow sphere, t*ozrlu 8 -c0 9qpou6sthe electric field at a point directly above the hollow sphere has

State three properties of conductors3j ydsjz9l: u0 fxl6q. in static equilibrium.

State Gauss's law.

  The charge carried by 9v66s2ng /v fp eyx3gs8l8zyz5wr y5o one 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 more protx5knp6kcgqtt*k2 .+ vons than electrons does this pi26g k.k vc+tkq5*xntpece of plastic have?

  What is the charge on 1 kg of p r p0tswjp/l/)0l)tt arotons?

  An atomic nucleus hasap:6y/oj2fl 0f qzxj2 a charge 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 6 rbqc5 ,bj2ll /abrom ne;7t8values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electri/ nl6oc2;,qb7b8 m5tera bljrc force between them?

  A 1.0-C charge is 15 m from a second charge, and thyk-gbv7x u*o4 e force between them is 1.0 N. What is the magnitude of the second7ubok*4-vxg y charge?

  Two 1.0-C charges have a fosqv,/v7c8f. /v dc jhorce between them of 1.0 N. How far apart are they?

  The force between a b/nr 9cvkme(($30 \; mC$ 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 they y h 6hjsj5;u3lare moved to a new seyj 6 u;s5hljh3paration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first cl0 g /bm97bq rt, 1u,0uy mwua;xunpq+harge is at the origin, the second to the right at x = 50 cm, 7,0,u uq wbg0uam ;b1xtmuylq+/n9 p rand 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. A charge of +2.0 mC is placu an:iw.:f ope3 )ihcpf7 n)6led at the origin, -2.0 m C to the wf7ai )3 o6f:npn).il eu: phcright 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 located atoxfokpqm n3j334:+ u6n+u fbv the following 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 the magnitude of the force on thfj3ook+:v um 3pn ux+q4b n63fe 3.00-mC charge?

  A point charge of +Q is9lxe1i (ejj(q placed 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 center. eqjj1e9 i(xl( 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 (0.3 wo ,f 0jgaq4v:j7kve30 m, 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 on0eoga f: jvj4wkq7 3v, the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 b lny ,.a+zbwe:9yb-xnC is at (0, 0). What is the direction of the net force onz we-+blbyybax 9 n,:. the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateraa,ozzo: op8, 81qqdndl triangle which measures 30 cm on a side. What is the magnitude of the eld :oa18zopq dz8oqn ,,ectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are jkuev8/o6)gc separated by 3.0 m. At what point, on a line between the two charges, would it be jec gkou 6)v/8possible to 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 =nb0 i,3qbp)l x 4.0 m. Where on the x-axis can a thirdl )0,3bqnixp b charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and chargdnqwz a1ota6ml j(d2 x619 ,dfe -q is placed at x = 2a. Where can a third positive charge +qj6a6q n1a od129twzdd mxf,l( be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. m6s4 /wg(b 5x1qogas nA 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 by the attracox3, a 2,m y:d m5myoj+u*bovltion of a fixed proton some distance above it. How far above the mb,+ aojuo3 v o5*ym,d2 mx:lyelectron is the proton?

  Two 0.20-g metal spheres are hung from a comrg8ahkc 9p(- 0mhd;dlmon point by nonconducting threads which c r0p-8hak( 9;dmdghl are 30 cm long. Both are given identical charges, 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 has a charap;3c *8suvv3 dfor :c;ydfc uwm) 6n5ge of +40e. What is the magnitude of the electric field at a distance of 1.0 m fro35cnafu d;8 6mwrsdu; v ccp:foy*)v3m the nucleus?

  What are the magnitude and direction of t p0:: e2(jn(fs0pbruxdkw-x at09fr the electric field at a distance of 1.50 m from aj(pxk09r2 dt: s00-pe:u b xnr wf(fat 50.0-nC charge?

  A 5.0-C charge is 10 m from a small t-yu +xe /;2m1uj3kwd iz5 ylxbest charge. What is the magnitude of the electric field at +uj3kmb y d;x yl1w 5xze-i/2uthe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the h/ 8 f/jq3pcmp,4btxdn-z/ rodbj:i; direction of the electb c,d-qp x nr bop:8/4im/jh dz/fj3;tric field?

  A 5.0-C charge is 10 m from a small test cha37s 1i qrjge8srge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charger7isgjs81 3 qe?

  Two point charges each have a value of 3.0 C and are separablean ,r72 v ub5b8nt0ted by a distance of 4.0autrb8 bl0ne ,2bnv 75 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm at-/).. br.i dpbfktku+s ig4mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fieldturfkt. 4 p-g k)ib/.bs da.i+ at the 30 cm mark?

  A 5.0-mC charge is plac,ba cx n.5sx i*z8sx.yed at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what pyaxz i8.sx n,.*b x5scoint 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 at x = 0 and x = 0.20 y5y6: wdd(dmz+3;feef 6mjo sm. What is the magnitude of the electric field at the point midway betweym ; efm53yzdsod d6(:e+wf j6en them?

  Three 3.0 mC charges are at thmtrsrj4d(+rt2 jmv1 lo k387x1 ro4fhe three corners of a square of side 0.50 m. The lasthvkjlo328rs 7jxdro4 +( fmr r14 tt1m corner is occupied 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 ap p0ry s8xxq74re placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +8q0prxs 47ypx3.0 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 43om/bl p2ldqplaced in a uniform electric field. What is the magnitude 3ldl2 /p4bomq of this electric field?

  A particle with a charge of 4.0 mC has a majgjb) 8su mr,o:g.euhc cyfs /+- r-r5ss 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 plo2mg3 ppy 34 mrpk47n2ttsx1haced in an electric field of 6000 N/C pointing rp27g2x p3t3smpk t yho14n4 mdownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The bakr*1j bo .vqy)ott)/vll is placed inside a uniform electri.1t ojrvvb)t *y/o)kqc field, and is suspended against the force of gravity. 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 is the mamoz/1 czv bu9 )4v/pdfgnitude of the electric field fzomv1vcd/z4u b9/)p5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is mb/b.pd,riufr )2*n g v4axp *the electric f.,f m2u4rbxpnav)d/ *bg*ipr ield 6.0 cm from the center of the sphere?