State the law of conservation of electric charb/rk4n9yz:hdt8mxi.3 sxk . 3szvki* ge.

  Is it possible for two negath0 ; ezosb9u8py zn y4mj3*8uuive charges to attract each other?

  Is it possible for a positive and a negative charge to attrjmtkmu *)ag*c5 9-dao yp.o3nact each other?

  A glass rod is rubbed with a piece of silk. During the process the goew 4fwsg ui) 7)p2k2wlass rod acquires a posi u2)s)w7f4pe oiwg2k wtive charge and the silk

  A proton carries a

  The model of the atom shows tru: .sdgq/b 06l m-npa

  A neutral atom always hi;d xvzz7f/ f*as

  An atom has more electrons than projnfo/,enb)coxmtxf c* xp- .,v.1 1wotons. The atom is

  Materials in which the electrons are bound very ti zd:ebz 0rp*/zghtly to the nuclei are referred to d 0p b/:zrez*zas

  Materials in which the electrons are bound very looj5 gpbqkio0eb0/la:kw d -/-hsely to the nuclei and can move about freely within the mat/ig/bo--wljqb kk0d5 :0he aperial are referred to as

  A negatively charged rod is brought near one end of anx(1d791- dgdh yvvjur( zujv) uncharged metal bar. The end of the metal bar farthest from vvdy(x( -)1j vdujgr79 uz1dhthe charged rod will be charged

  Sphere A carries a net positive ch + qsxg6acflh/3+sie9arge, and sphere B is neutral. They are placed near each othh9x+6 ea3/+csfgisql er on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively ch9)xbg)uewa 2/h qg ko.arged rod charge an electroscope positively?

  An originally neutral electrostuo* +xbxcbay22 s ul/0 .k)pwcope is briefly touched with a positively charged glass rod. u/.0b *2ylo wtc+)b a2ux psxk The electroscope

  An originally neutral;iky 0gpte/:p*x+rr mg7-rnx electroscope is grounded briefly while a positively charged glass kgp+ pex7gyrn/ 0 i*r;tmr-:xrod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, an lxaa1mf )4g4ceug/c(d the leaves separate. Then a negative object is brom4gf4ce/ au1(c g)alxught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neul zw 4j:v15epo+66gw jv(l;teq(lj trtral metallic ball rolls straight to v6w pq6+eg tjvjl(4e(rlzt1:o5j; w lward 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 Coulomb cft cjy4ucvwc3+4: zy v)5s59zk bs-zc onstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a di;s6 u:tnb38vqwj o-n ltx/sk ,stance d. The first charge is larger in magnitude tht8o/,:- nsts;jwlu3 6qkbvnxan the second charge.

  Sphere A carries a net charge and sphere Bek7)czd p2ia ) is neutral. They are placed near each other on an insulated table. Which statement best describes the ele7ezadc2 )p)k ictrostatic force between them?

  Two charged objects atfmh8,ssplxxkc73 m , .tract each other with a certain force. If the charges on bot83 kflmxsx,ph7 ,msc.h objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces 4,5kmoe.;uy ( mfz nxaof F on each other. Ie( 4mn5o yux akmf.z;,f the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force o dzz78p rsfv7 gs;.37ovi: cdF. What happens to the force between them io7 vcz is:p87d ; .o3vzfgsr7df 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 separate8m .uw3nc4lhs ;sw -4 g5iwhahd by a distance of 1.0 m. What happens to the magnitude of the force 4 sha;wl.4whumhnis wc 5-8g3 on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distan uo7n3 in 0 nzjcy9wmok0 zhr7-l6gr69ce of 1.0 m. What happens to the magnitude of the force on the first electron if a second electrocrnk0636r7y l9 oz9ij -hmn07 wnozug n is placed next to the proton?

  An electron and a proton ary xks5yd* 5x8cngt /p4e separated by a distance of 1.0 m. What happens to the size of the force o cdkg4/nxty8y5p5 xs *n 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 a second point ct bfkzrq-k 1d9-4d + *zg 8vkknjaq34iharge 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 corne-j4 9ki -qgkr +3qtkk4v8 f1badzznd *rs 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 equilateral triangf; s8 yo7lzj9dle. 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 a7 9jsyl 8z;dfot one of the other vertices?

  Which of the following is not a vec nwlvr)vc:z b 4u1(n--ir ep ek54)pdrtor?

  At twice the distance from a point ch3kfj/n;v b+ 3euawxp2arge, the strength of the electric field

  Is it possible to have a zero electric field value betweesg,uzku5actb+ n-//n n a negative and positive charge alongc/au5nkbs,g+ un/zt - the line joining the two charges?

  Is it possible to have a zero electric field value between two positive ch-qw an 802nhlg6yhna7ix8y: marges along the line join82mhh ly 08y7:ia-6nqaxngwn ing the two charges?

  Electric field lines near fomie3o0po56mg 2, ha psitive point charges

  The electric field shown 4s4)fu(u008 wdodppkvsa 2wlym,h 9q

  Can electric field linepzumb 6t3x1 zzm1l/;b s intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elt6luvacjbvphk +9r7;r8geh8:q64 v7nw 8e ys ectric field. Give a statement concerning the electric field tevqjnyswk al:r8;8h v+ec7pru4 gb h9v 6786in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamee :q(+xsy(u qapv+kb7,i(svy ters are each given the same charge, the k7q, y:xqp +svs( yaive((+ubelectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests oooh0s z0sg0 zpul arlc74- :6a mkkw1:n a wooden table in a region where a uniform electric field is directed straight upward. What 07wa:c ol6rzs: zuo0kpa glk 4-h1m0 scan be said concerning the charge on the block's top surface?

  If a conductor is in electfuaeea.54 t2frostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spher57/3v 9qc 9vy fqgrplmu-1iyuu hw8z8e that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abov8 ymuzqvfu5c-vp i u 897/hl 9g3r1qwye the hollow sphere has

State three properties of conductors in static equibbasson wtc+0/6, xm1librium.

State Gauss's law.

  The charge carried by one electron 8 .urx( i 1vy.nkpyr p3nuxdw1h(96lm 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 hap4 g:t6y8ew s 9h +i3wheu.fjr 4ksuq8s a net charge of +2.00 mC. How many more protons than elec h4h8j9 q uit: e8.s4fpgr6usw+e3kwytrons does this piece of plastic have?

  What is the charge on 1 kg ot6uy5x2c q3: p1fmh gof protons?

  An atomic nucleus has a ch;sz:y (s ai4qcarge 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 lhd ) t)avri*f*, 4tpgcharge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between thirtd)hptav4g f *,l)*em?

  A 1.0-C charge is 15/fqr ,a-lq:, tzpsi5p m from a second charge, and the force between them is 1.0 N. What is the :zi a-,5qfrslt,p/p q magnitude of the second charge?

  Two 1.0-C charges have a force between theq5p4q w9f; bzom of 1.0 N. How far apart are they?

  The force between a me1 c,5 ugy+vp8d j9n(uhwb; q$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm arj y :l u8p1cd.fir+6wpart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the ele+u plcrr86wi.1d:fj yctric force between them?

  Three identical point charges o2 zzv81)fpi szf 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right aps8)iz2z1 fz vt 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. A charge of +2.0 mC is placedw71de lb .1(etckszr 1 at the origin, -2.0 m C to twetz e 1 s(17d.klbrc1he 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 wd4rmy7j47e i located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 =w4r4jey di m77 -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 p+6o1( ul /-xnbb:kuu* k nspxa 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. 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 corn k6no(u/ux- upx :p k+bsl1bn*er?

  Q1 = 6.0 nC is at (0.h2qxkgdo9,v6x:l / rz30 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 on / vr6 2:zxd9 goxhkl,qthe 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.cr4 jstehho20w(r k3: 10 m); Q3 = 5.0 nC is at (0, 0). h(st04k 2ew o:hrjr3c What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 uxr,4+/eg jnpmC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elec4 n xep/ur,j+gtrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are sepaix brxvp+hhb* 442k2zrated 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 ex2+ rk24ip*zv bbhx4hlectrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +91v- hq ng6,yr*ylsnx-( zb9diqrec9 5.0-C charge is at x = 4.0 m. Where on the x-axis can anny (szr-x,ilg9hrce5 6d vb1*q -q9y third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin azk8gv+ )yw a8qgs .q :dw- .p.6kxtueend charge -q is placed at x = 2a. Where can a third positive charge +q be plakqt)dzq gke +8..s-ga x8ep .y:6wwuvced so that the force on it is zero?

  A copper penny has a mass of dpmzkir k1h3z 4)1y6r 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 the force of gravity by the attracti q,zf -ounv, oi(*far(9tjt q0ik+ha. on of a fixed proton some distance above it. How far abov iftq-(va.o+,r9*ht ofiu z(0kjqna ,e the electron is the proton?

  Two 0.20-g metal spheres are hunq. kkz ;o/ds5t e8ktzpt3*v rz(hzy22 g from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apartz5zrdh s2qv z*ke/kot(2; .3zy8tkt p 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 t/q/ jbzrvxmh4 +1 o ay:(g3pdohe electric field at a distance of 1.0 m from the nuclegb 13 /:/xpm+yhqo(rvajdz4 ous?

  What are the magnitude and direction of the electr hk/;ws/7mvg ys 4yo7h wj(b8fic field at a distance of 1.50 m from a 50.0-nC kw47yov wm8s; /fjhg7 /shby(charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magy( *tndmnll1 +nitude of the electric field at the location of the test *ydln 1m+(nltcharge?

  A 5.0-C charge is 10 m from a smallv8s 5ksnk8x2n test charge. What is the direction of the electric 5s2vn 8snxk8kfield?

  A 5.0-C charge is 10 m from a small test c q(wnn*-bevk8harge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the lvke q( -wnnb*8ocation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a died,l bw9w-b np*s)*xpstance of 4.0 m. What is the electric field at a point midway between the two cdx9 e,wbbplw)-pn ** sharges?

  A 5.0-mC charge is placed at the 0 cm mark of :2fgl 9) y zdl23lcheq( vx-fsa meter stick and a -4.0 mC charge is placed at the 50 cm m (f2f3z9) hg-:sc lvxqydl l2eark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick an ;;ikp bx(s7)io gza9cd a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?xg7 ziksap 9;)io; c(b

  Two point charges of +3.0 mC ard/)5mbn2mmpbp3grp4 dnq :4nd -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between thembpq )rdgm nm423n r:m4b/dpp5?

  Three 3.0 mC charges are a:rv-ss:nxz * j*oso -st the three corners of a square of side 0.50 m. The last corner is occupied by v nssso z-:j*r*-:xosa -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 are pla1,jd:2l2 s3sum)rww23 k) ywma5/avlq sperkced at the corners of the square as follows: +4.0 mC at (0, 0);e:wap)2 wm1k)uj dr,kmy v2 s23s5l/ q wla3sr +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 lok1.sk.p c + 5m8ytyzis placed in a uniform electric field. What is the maglkyt ks.5ympc8 .o1+znitude of this electric field?

  A particle with a charge of 4.1pxvzfv jxi6gv e/i*0x ik v:d.3nw ,10 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 fielc37) 2o-0looe*qej 7gbmp rgna.w4 nyc.qb :vd of 6000 N/C pointing downward-wa7 qe3m7*gc bv.gyq4nl onp)b:e02j .c oro. 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 ba)r;kmv e 8df7qll is placed inse v8km;q7r )dfide a uniform electric 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 cd9/w*0 + ibw.ahfsy ztharge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sph9 ftyi+hzd. wa/0w* bsere's surface?

  A metal sphere of radius 2.0 cm car7m5c lgu(c cjfb-l34bries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphere? 47b-3 cc5jlgmf (ulcb