State the law of conservation of electric charg/jlxnde3-h6qqi2tk 0 e.

  Is it possible for two negative charges to attract each oteqaio8z fdr;/3e10k mher?

  Is it possible for a positive and a nexe9j of( -+;nslhhn 9zgative charge to attract each other?

  A glass rod is rubbed with a piec 81lred58isn; gl qel7e of silk. During the process the glass rod acquires a l17lrdg8nlee q58s ;ipositive charge and the silk

  A proton carries a

  The model of the atom srurzm1-s8 cg x gq5a59hows a

  A neutral atom always tojh m(0 t+;xko+i4nthas

  An atom has more electrons than protons. Tlyhmb*;ky) ) 0-n ykiq+i6mcmhe atom is

  Materials in which the electrons am5s8kc sct; /ore bound very tightly to the nuclei are referred t8 5cm;o/kcss to as

  Materials in which the electrons are bound very loosely to th7h+i) -eiqz2kht q - ob5gf +,ycstl)we nuclei and can move about freely within the material arey2i,c5hq q)kegh+f t oiw-lb+s z )t-7 referred to as

  A negatively charged rod is brought+m4 7z45davavsera2 h near one end of an uncharged metal bar. The end of the metal bar farthest from the chargedmav az rsd45 h+ve42a7 rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Theypnk0v+ j5r 7ec are placed near each other on an insulated tac5+ j7 v0rnkpeble. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively pccvtao skdey.2o9c s+:,k ia:n*(t5 charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a posij6c*ijc z/7s -3w2 ybk ,ukicbtively charged glasuck 2sbzjc63yib*cw,7-j/i k s rod. The electroscope

  An originally neutral electroscope is grounded briefly while a posib 1ndyhrk :f jpej5 bu.m2.s))tively charged: m1.rbpfn yb2ej)d . )hjku5s glass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral elec0 +v24epc qf2eyfy 3xytroscope, and the leaves separate. Then a negative object is brought near the el4e3qf+2f cx yvey 20pyectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on 8gnk oyek9*ot/ -0em can insulated table. A neutral 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, but does not touch t -m/k egnyok*8oe9c0the 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 consp+ atm kqy:,adl)6u .a8a7kmttant $k$, which appears in Coulomb's law?

  Two charged objects are sd)egohpc;*hq1 5 5vkdyk3 )oh eparated by a distance d. The first charge is larger in magnitude than the ohk)1pvqo*ydchgdeh5 3;)5k second charge.

  Sphere A carries a net charge and sphere B is neutaze0iua8a kv.gc*c)ad54 3 xr alu 4j 1k)m(xtral. They are placed near each other on an insulated table. Which statementk.5azu 4ag )rvx aa j83c1(d e4ick)ul mt0*ax best describes the electrostatic force between them?

  Two charged objects attb c kmin164;a97p mqjhract each other with a certain force. If the charges on both objects are doubled with no change in separation, the f qj ca9;pb61m hi7nmk4orce between them

  Two charges are separa z10 nv/kmqde6ted by a distance d and exert mutual attractive forces of F on each other. If1 6zkqm0ned/v 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 F. What happd t)5d g3-ounaa,vv) pens to the force between them if one charge dt u,na5 o)v-apvg3 d)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 happens ho4 l:7m4nhcrf 6fetdi m s74,to the magnitude of the4c h hlrsdomf74miftn64 :e ,7 force on the 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 happenkl5 ul)eol(muig:l 5 2r)-j7kzpue7as to the magnitude of the force on the first electron if a second electron is placed next to the prot klk)7)a rli7p2ull ou:e(j -5meuz5gon?

  An electron and a proton are s( rc(kem3izwq7 ce+:geparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to ther7w kczq: c+ (g3m(eei proton?

  A point charge of +Q is placed at the center of a square. When a second point rgra9i v4n8-a 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, identi9na v8-r4 agircal 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 pl ee(huax8l *-laced at the centroid of an equilateral triangle. When a second char8 *a u(hxlee-lge 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 at one of the other vertices?

  Which of the following is not a v:lp )/d4/ h mptw eqa.nhk05vlector?

  At twice the distance from a point charge, the strength of the electricmu )x fk6dk01(j iab:c field

  Is it possible to have a zero electric field value between a nixv oyp)u uw(r0w +7k:)v2xtsio.ah.egative and positive charge along the line joining t.ok )u i0 ixxtpvyaors(7 hvu2:) ww+.he two charges?

  Is it possible to have a zero elecw s3 4i;gitm3mtric field value between two positive charges along the ;3m4gt 3 wmiisline joining the two charges?

  Electric field lines near ps+7 fw3gni,/xm; .em7uffzza f;fh g 0mitive point charges

  The electric field s 0w-y6 jpb6ecuhown

  Can electric field linesza2*ydga6bx + 7yuq;s intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed ivarteu zb2 kn lnp5wv660d;13 n a uniform electric field. Give a statement concerning the electric field6 w 6lr aun1;kpt30bz2ev5 vdn in the block's interior.

  If a solid metal sphere and a hollow metal sphere of db. rr ke ta3 +so+boo9t-4q8mequal diameters are each given the same charge, the electri.m-ko3+o4r d+trs9 beobqta8c field (E) midway between the center and the surface is

  A cubic block of aluminum res)jtbpc, e 2;yq hoq.f6ts on a wooden table in a region where a uniform el),qe;fj 2qh . op6tcbyectric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in e9iv2( -plrwu ffl7wm7 lectrostatic equilibrium near an electric charge

  A positive point chafayj o1,efq 26/kigc( rge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above ekj1(fq f iog2c6a,y/the hollow sphere has

State three properties of cd5 mk8ie5pb7: d mvz0sonductors in static equilibrium.

State Gauss's law.

  The charge carried by one electrongar/+ uyx h i/)jfr);f 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 ma1borkbqp0w5l u2*5 l 8aaybc: ny more protons than electrons does this piece of plcwbp8br qa5 o: k5a0*ully2b1 astic have?

  What is the charge on 1 kg of proevrqlq7+n z6)) s ;7hxk6 uvlntons?

  An atomic nucleus has x ml5(mgxv 0+3/ 3 v-fpftvsd7y2fwvua 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, h /dd erc4q26wfave charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force bew64/2drq ecfdtween them?

  A 1.0-C charge is 15 m from a second charge, and the force*na, zhi1mh2)nc;e0 jwg rp*;nw fhp( between them is 1.0 N. What is the magnitude of m p,ca;0 ;nih fre* wpg*jh)nn1hz w(2the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are thra0d 7q75y /i/luw7 bwqd 1wirey?

  The force between a pjl*xudsv 0djz2*6v 0$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cmbfoly.4u(*..af0 z n nf:bixy apart, experience a 1.0-N force. If they are moved to o.uif.flybz:a* nn ( fbx0y4.a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on+l8n6cbdgo, gv) b7wi the x-axis. The first charge is at the origin, the second to the rightgnl bgb ,dw86civ)7o+ 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.6xzxx z2dcz8h nrt 2vcw1z,6 2 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 direction of the electrostatic f 6znh2,2 zcdzxr2xtv68 1c xzworce which acts on the charge at the origin?

  Three point charges are located at the following positions: .9jn+jv x8rod d) kpz7kn e pym;50m.eQ1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.9npj d;x 5emj. kn7 +) .okvrz80mdeyp00 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 squarw 4(grg1jx;sfr n;2uu /y(slfe, 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 cha ufgg(wsr l;yu1r ;n 2jf/s4(xrge 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 = 5.0wmmhn4ew*9 jb 8elz9-yd)b;lfg: u w9 nC is at (0, 0). What is the magnitude of the net force on ;zlg-b)9fwm h9*: u98 d mewy4bnjlewthe 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); dxq y*w3k9/6e2kdb h gwo,k4hQ3 = 5.0 nC is at (0, 0). What is t42 b*/xd3yh edo6w qw, khk9kghe direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are pla9kb+0v;nzhnbuw bn6*pmk7uit a c; )wf/+2hnced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the chari972t+kpnz ;*h+nu6fa mcvb bn/bw0w u)khn ;ges?

  Consider point charges of +Q and +4Q, which are ( au+rlm3ywzz*vg4 5 whh.ho1separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a3 1(w * homv wg4h+y5uzz.lahr 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 tkj8 t9fju :ih1 9g wqywq o,)q+l5,le= 4.0 m. Where on the x-axis can a third chargeqy ot,9qf 5 ,hwgll)jjw9tu+ keq1:8i be placed so the net force on it is zero?

  Charge +2q is placed at05ke0t22g sd.4taguh6 dqnj(dsdu9q n ;m5zj the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is z dm4 2daj00sd.g(d 5 6ushg9 z2tk qju;e5nntqero?

  A copper penny has a mass of 3.b z5oo;m(nq/d 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 attrac ni9w w0a(d6tp6h 3tc jze8mh6tion of a fixed proton some distance above it. How far above the elecwea i69jp0nct(6dt3 mhw 6h8 ztron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonc a:grf 6wd0.v gm+2:sllqi cq+onducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the thre vgflc+ rwl6+.si0qa d :q2gm:ads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnitu5/k:j(/ czb ).b5f ds7 dcsbfghu5,jach( dwyde of the electric field at a distance of 1.fwb5yjgckd5:(,c(.h s7b) ca /fd/h u5zdbsj0 m from the nucleus?

  What are the magnitude and dd/rh gpjipq) ftk,.: rn s9(*lirection of the electric field at a distance of 1.50 .jd )9f:nli(/qrgt r,ph*kpsm from a 50.0-nC charge?

  A 5.0-C charge is 10 j w((uz2p yd)aq81 eamm from a small test charge. What is the magnitude of the electric field at the location of the test charg)euqyp2( 18d (awmzja e?

  A 5.0-C charge is 10 m from a small test charge7u6z(6vvvl( gjzdv6f)btx 0d. What is the direction of the electvj vv 7dbx( ztv6lug6)6 fzd0(ric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudeyp6y k2pc5bv r2( tkl( b0 iyo5o:rrk nk**4sz of the force experienced by a 1.0 nC charge placed at the loc y:ilr2y 4 b(60tspk(kzvop25r5ryk k * o*ncbation of the test charge?

  Two point charges each have n4 hjhx3wv.f9ym o 77za value of 3.0 C and are separated by a distance of 4.0 m79zfxmv473oh wn hj.y . What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sa.67n owc +y3k x0ebcrtick and a -4.0 mC charge is placed at the 50 cm mb+ c.0nxe3wkar 6coy7ark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0/zk-x8t f-49ooyj33h kizeye cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the tk oyhzk 9jz--x ef/334eit8 yowo charges is the electric field zero?

  Two point charges of +xdk)vh una+6;le i/a 5sj* rd/3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude h v6 d* /n5rlxa adije);+k/suof the electric field at the point midway between them?

  Three 3.0 mC charges are a vvuo ybb:tijmyl(lki:x:4m .;) 2z : *o:bufbt the three corners of a square of side 0.50 m. The last corner iszv: ::mk: 2uf:4)b.ybio j biuxl y*lvb(mo; t 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. Charxu /d)umc) ykyp5tecw 5(wc*7ges are placed at the corners of the square as follows: +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 eleccdc5)* x/tk7cyp)u ( ymw5 ewutric field at the square's center?

  A force of 10 N acts on a j9ct nh2a56 ,/mb jrrmt7zn.lcharge of 5.0 mC when it is placed in a uniform electric field. What is the r 7,l25mrc bzn ja.9t/mhjn6tmagnitude of this electric field?

  A particle with a charge o+bwow2ojjsu z-r/2 v4go2*,mo )ynzaf 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 6o nom7k(8 3gcdvirs-in an electric field of 6000 N/C pointing downward.im-7ns(d8kr c6 vo3g o 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 placed i05 si 0ioo ;im;siwvm/nside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the eomm5/siw;o vi 00s i;ilectric field?

  A metal sphere of ra sg t0g*yy*sj+dius 10 cm carries a charge of +2.0 mC. What is the magnitude of the eytjs*s * yg+0glectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mCsrm-1(dmawh3cko 006iq dk9nj0k 0f w. What is the electric fj 6dm( ohfisk309-d1akcqrwm0 n w0k0 ield 6.0 cm from the center of the sphere?