State the law of conservaj1)q ipmh8ek9 hy) q:dtion of electric charge.

  Is it possible for two negative charges to attract each ot+(*:h6maxz7 ) pn rwjm c lcz5n;ell5bher?

  Is it possible for a positive and a negative charge to attract eact 2ot yp2:)imsh other?

  A glass rod is rubbed with a piece of silk. During tq9o)7 q3dduy dhe process the glass rod acquir9ou 3 ydd7dq)qes a positive charge and the silk

  A proton carries a

  The model of the atof*; e4gvmkhm71o cxt 2y5nb)0w (wnvbm shows a

  A neutral atom always hahk 3n2;+gja pcs

  An atom has more electrons than protonhzemfd4s,x( :fx a - 5s:juv9vs. The atom is

  Materials in which the electrons are bound very7xz,- -zwg nmzasci:7 tightly to the nuclei are referred toz: 7a - inszx7g-mzc,w as

  Materials in which the elecbcwbl rzl+(4u7wr dp6i*q ) g4trons are bound very loosely to the nuclei and can move about freely within the i)u4 l 7rdwb+ * g6(brq4lwzcpmaterial are referred to as

  A negatively charged rod is brought near one end of an unb r3 l8djt-x wy:xd.k-charged metal bar. The end of the metal bar farthest from the charged rod will bxtl :kbdx .8w3dj- ry-e charged

  Sphere A carries a net positive charge, a7h eqh+avs.-ibsu0/s nd sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefle sa/isv.h07+-h qsuby touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged r qov/eg u,* (eu,ullx/od charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively (x /l lh-xzyw q;rlk.z2kt31bcharged glass rod. The electroscyhx wq2z; btll1kzl/(3. r-k xope

  An originally neutral edi9n/g28dkyioye +xvxx -v ; 1lectroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electroscopk x/dovgxxi-1e29ny+v8 i;dy e

  A positive object touches a neutral electroscope, and (h9z6z:m, izmrqy rc1 the leaves separate. Then a negative object is brought near the electroscope, but does not touch :r,m6zz c ymzrqh(9 1iit. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutr rn3y p04gn vhlh8.j5fal 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, v5 ph8gn.hnlf0 3 yj4rbut 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 Couloqu5)x ze:x9sbbzvw 8t.a ( c7jmb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distancec.rl rf**y bd8yd*j+hk l6,ld d. The first charge is larger in magnitude than the sec kdr*.y+j*dlchr *y bd6l8f, lond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eacmggee- ;4qbvj -g:r0bh other on an insulated table. Which statement best describes the electroqje-:; 4bgmg-vg 0 rbestatic force between them?

  Two charged objects attract each other with a certain force. Ifrn cijjp 98zgn+gjg/ ;ed+fro )ip7:7 the charges on both objects are doubled wit7grjifeiz rpd)gnnp9 j8 :o/ j7++c g;h no change in separation, the force between them

  Two charges are separated by a d sxkrlot;mh90e; 44w aistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of o;4sxm0a4 wh;e l9ktr d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Whatp nj)8. njhe)ym .n2qn happens to the force between them if one charge is doubled, the other charge is triple.n eny 2).)phj8qnnmj d, 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 arew 45j2oxuurpad a) 1,h separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second op1ru2x4udwj, aah) 5 electron is placed next to the first electron?

  An electron and a proton are separated by evv2 vf*1 +gcka distance of 1.0 m. What happens to the mag2fcge +*vv1 vknitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m 5s2a*8 ao: smyi eyvn4ywl04h. What happens to the size of the force on the proton if the electron is moved 0.50 la8sn:5sw mei4 4yyaho0*y 2vm closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second popnl( puk9a *2quetm+(g* fm8fxa2d m 6int 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 thre(ud+kf8p9lmf6n *gm atqu2 * pe max2(e 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 plalz+d0q mkp(8dced 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 chargpd0qm(8 +kldz e of +Q placed at one of the other vertices?

  Which of the following is4uuex ok+lp2u6 0 cbnhaae :6* not a vector?

  At twice the distance frofg kx z4i h6guoa8--+cm a point charge, the strength of the electric field

  Is it possible to have a ze.kk,m uwc/x6hx45 gwhf 83 uz dqc yyl*dg.*y6ro electric field value between a negative and positive charge along the line joining the two chakul./g qhc,54k * ddm x 6u6*.yfwgc3why z8yxrges?

  Is it possible to have a zero electric fielai dlghjwn-v4 j) 6yfobv(4/ :d value between two positive charges along the line joining the two chargeh ( d46 j)vlbioag:n-/y jvwf4s?

  Electric field lines near psitive point cjpkrp 3kt u6s7:(nw+dharges

  The electric field show94qxe f5,osp hn

  Can electric field lines intersect in frrkm5all u*3aj 1hq0o/ee space?

  A solid block of metal in electrostatic equilibrium is placed in a c nfkidw(88o+ur do1st3vo . ,uniform electric field. Give a statement concerning the doo,8+st(rvuonk 1i . 3cdf8welectric field in the block's interior.

  If a solid metal sphere m wpuw08 v,w9dc1st 8sm4 h+rhand a hollow metal sphere of equal diameters are each given the same charge, the electric fi84cmu8sw+p, vdww9rs01hh t meld (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table ijcym.ij .q2wt5r8)2z pgk- r yn a region where a uniform electric field is directed straight upward. What can be said concerninky228qm jrpywt i.r.gc z-j5)g the charge on the block's top surface?

  If a conductor is in electr496rybj4 uz7 y,8 fh ayk63guqlhq2dkostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is gr+x6g5zkwmm4k ounded. As compared to the case without the hollow sphere,xw mkkz6g5 4m+ the electric field at a point directly above the hollow sphere has

State three properties of conductors in static c 50ak dtcyoce+ty:g:. z/ 0 fvdno-*cequilibrium.

State Gauss's law.

  The charge carried by oneb8( h 2ciqsi q+ius:ss 69j0 f6kpv-2nxtbq(g 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 protonp)udr +p vy15ts than electrons does thir t)1d+5yv ppus piece of plastic have?

  What is the charge on 1 kg of protony:s(wjir *)4ls/q,3 zvmhu z vs?

  An atomic nucleus has a chargecu 73c lgj6i:a 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 charg93 yjok ikhblu/c6, 7 ehqc;8ie values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between themc/;q7bkh9iy3cu6h j ek 8 i,lo?

  A 1.0-C charge is 15 m from a seckm 56zr7kajc4 ond charge, and the force between them is 1.0 N. What is the magnitude of crzkj 6547k mathe second charge?

  Two 1.0-C charges have a force between them of 1.0 Nr6w2:hfe0kkua3+ pfc . How far apart are they?

  The force between a ai0fszx;s ).0b/i bm/ 1oyvos$30 \; mC$ 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 w2sntgz:e) ubv)rhe 3 i7w6l( they are moved to a new separation of 8.0 cm, what is tvu6bwls3:z(t n7ehi )2ewgr ) he electric force between them?

  Three identical point charges of 2.0 mC areig8 s1 v;2q-oz328crx iklz th 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 at the 100 cm mark. What are the magnitude and direction of the electrostatic force which ac -xlgc3vz;qsih8t z22r8 1kiots on the charge at the origin?

  Three point charges are placed on the x-axis. z9chp zcn :36uA 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 magnituu z:hnpzc369c de and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00w9; .(hjqo+azj e0vt e mC at x = 1.00 m; Q2 = 3.00 otje ;0wehz+.qjva (9mC 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 at the center of a square, and a second n1bn:yl-u gj /b barl4hdb-+,sb1*q kpoint charge of -Q is placed at the up:s -k 41lnbb+ug,/l-1 bjdy nbqrabh*per-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, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5d)zmn6k j 90iv.0 nC is at (0, 0). What is the mainzj9dk6 m 0)vgnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0 8lcb.-jbu d.*mqpbf)); 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 force b l-du* fb).j.bp 8mcqon the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equ; 0 oqveak 6/rqcep2:r9m6vh+rgrum h+ 94mjwilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic for9e9 :q apmk4;mjru+ h+errrhvv qc/o2w6g0 m6ce which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are ty) ,o9:z(i.fwacechseparated by 3.0 m. At what point, on a line between the two charges, would it be possible to placeea ccihyto.)f zw :(9, 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. :ht (z3e prgp30ar43 ect9rr y Where on the x-axis can a third charge beg( p4rp:3ea 3 tec0rrz3ht9yr placed so the net force on it is zero?

  Charge +2q is placed at the origi8 r64u 1bhnm:vtlrt-ub/ xe8hn and charge -q is placed at x = 2a. Where can a third positive chamluv 8b 4hn8bt1r/:-6 erthu xrge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. oilm/wl1f6j9 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 the force of gravity by the attractioipt) a irwcg9dj4 e3q5gh9h) )n of a fixedtjga3h) 5iirpc d 4e9 qgw)9h) proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting t ldm9l*6,n 2 f)kyuqadhreads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion fudflk *l9 2)d6 yqn,amorces 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. 2gk thsme*7 w6vbjrx,7:oc 7 o48 bjxdWhat is the magnitude of the electric field at 8v,7 *wtbejr7 hodm2oxgcs7bj6 : k4xa distance of 1.0 m from the nucleus?

  What are the magnitude and direction of t t o.- mw:rrhe(fc(-pthe electric field at a distance of 1.50 m from (ohcetr-- .t(fmwr:pa 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ojk w2u wth 0uvthz.b+g02s)5ef the electric field at the location of the test s wb zkjet)5+h22whg.vu 0tu0charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of:;m isvm.x+,ci0lmutc 7s 8z o the ele7:t. moxsl8;mvc ii ,scmz0+uctric field?

  A 5.0-C charge is 10 m from a small test charge. What is tq, yfgz 1r6q5ic34kx dhe magnitude of the force qiy3z5xf 1k ,dg6qrc 4experienced by 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 di,vlg m0 jsfspi st31:1stance of 4t: s1ls g0jfmsvip1,3 .0 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 m6d7zx0z+s vmy1 ha g: ec-j0ecark 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 ma0x-6zj0mcd+ ye1: gevac7hs zrk?

  A 5.0-mC charge is placed at the 4gt n*:91 x.xfqarkdm.gc a umr:-,ot 0 cm mark of a meter stick and a -4.0 mC charge im:*ad qrx-c g.m,4a krugt: . f9ox1tns placed at 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 oc3*f4ixh q3s mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electrifoh qs3x34 c*ic field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 1q)zmvat9 ,snu9ggn40idsy,a* *b ujm. The last corner is nz9st)n9mi4ub,ug**a aq d sj1 g 0vy,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 siz)ht(i +6f ympl.ry eh8:u;blde. Charges are placed at the corners of the square as follows;)tpy( .hm :lf6+ yhlebzri8 u: +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 inu55zs 1 w6lwwg ,ry.nit i(x5v a uniform electric field. What is tv1w s(rx i.5 ntywu,5i6wz l5ghe magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass of nk*d.h:/ d1lwdh y er,$5.0 \times 10^{-3} \; kg$. 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 elect.so ymvr u1,l5 dw6na-ric field of 6000 N/C pointing downwad,sya5wm1lo6 v-u .n rrd. 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 ball is plafgl zhwt-n z )9xag6j.j1l3)tced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electri6)l)a9 ngxztj-fjgz1. lw 3thc field?

  A metal sphere of radius)i rkxnapr r1,sa+3k 0 10 cm carries a charge of +2.0 mC. What is the magnitudeiankr , rrk+s0pa1x3) of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge o -c1te;vsy -7;2ivxgimnkyy, f 3.0 mC. What is the electric field 6.0xiy my-; cv7-,sneivgy 2;1t k cm from the center of the sphere?