State the law of conse:mz8xq1 lftqy ga 7-aum9b-2urvation of electric charge.

  Is it possible for two negative charges to attract each othhgk 88ite s75h fpk*.per?

  Is it possible for a positive and a negativerzl igp46djtcj fz:.h 3)*- da charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process2 cz)r;ag tmkh uq5n/jr4n 6j 6k7v;kk the glass rod acquires a positive kkk26nr/; tgajh4 6vj;uq5z krcm 7)ncharge and the silk

  A proton carries a

  The model of the atomqf+0yx poho;pz)shv alm5 ;ng01a k9 d2nw/o0 shows a

  A neutral atom always hasf6rrde5drq/ b:5l;ij

  An atom has more electronsh6u 3hhzg l qjlh,2 ,nd+ds:/k than protons. The atom is

  Materials in which the electrons are bound very tightly to th3iay:2z byn+ me nuclei are referred2y3: amn zyi+b to as

  Materials in which the electrons are bound very lo4 ytk41gr68 xszlhyt( 3e kcx)osely to the nuclei and can move about freely within the material gzh) 1r8xlyeck4x46yt (st3kare referred to as

  A negatively charged rod is brought near one end of an uncharged mx,cw8;9rp lcdetal bar. The end of the metal bar farthestr 8pcdx;w9l, c from the charged rod will be charged

  Sphere A carries a net positive charge, s h tp//o2k i:wccu,u6and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched cwo//2 ip:,u utks 6chwith a wire that is grounded. Which statement is correct?

  How can a negatively chm.,s k*1xnldzarged rod charge an electroscope positively?

  An originally neutral electroscop++gnqo0m9n - tah ji9ke is briefly touched with a positively charged glass rod. The electroscoa+-i9 09nn+ jkmq gthope

  An originally neutral electroscope is grounded bri:03lx 6)guivq:smxy(zwezf )2*dsdh efly while a positively charged glass rod is held near it. After the glass rod is removed, fweig: mxq)0*s s23 x)l d6dzu:z(v hythe electroscope

  A positive object touches a neutral electroscope, and the leaves separate.x g ji((ycy);x Then a negative object is brought near the(xy c(;jg) ixy electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated dcgk. qakbn: 2; b32f9uvev2atable. 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 the negative object. At no time does either ball touch the negative object. What is the fik v;:.u2k qb na2ca3 bgedf2v9nal charge on each ball?

  Charge is

  What are the units of the Coulombna)2d.gpc ry 3 constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge iizo 99iciy2 b;s larger in magnitude than ti9b9 2z;oi iyche second charge.

  Sphere A carries a net charge and sphere B is neu9k v 4g q11rlmrrhhhq3d p)n;;tral. They are placed near each other on an insulated table. Which statement best desclr9kv1d4 q1mrphgqh rh;n ;)3ribes the electrostatic force between them?

  Two charged objects attract each q-g2qdhv*e30zvn w f:other with a certain force. If the charges on both objects are doubled with ze0*fhv: d 23gnwqqv- no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractdiw1 r h3anb8tq*:l(pive forces of F on each other. If the charges are separated by a distance of d/3, w( dbl 1:3rht wqap8n*ihat are the new mutual forces?

  Two charged objects att4f54fdx;, d 6-zkdq rbgvxid )ract each other with a force F. What happens to the force between them if one charge is doubled, the oth gb6xdd,d4zv4-r;q5 x kiffd)er 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 pr -agpgzsdssn ih0zeyw96 (:4 ,oton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is a(e shz4yz 0gs,swi gd69-:p nplaced next to the first electron?

  An electron and a protont3nv sf:3i2bwf d*u +vsczyl 0 a8g03s are separated by a distance of 1.0 m. What happens to tcgbu3 i0*3+83: s0nf aslvdwvsfytz2he magnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a protojc(pw8fwv mpp .tz *vu+5-b g/n are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the u (w+*p.j85 cgptmw/-v zfpbvelectron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a sql *mife gi14 u17lcd)qlm(gl2uare. When a 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 c4m)lf 1cl(*1 e2mggd liul7qiorners 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 t 3 0huu-j7w67dauo7xh x-yfj, c)k ycsriangle. When a second charge of +Q is placed at one of t73u h,ycxuw-sjkh 6a7yc7f )ud0o -jxhe 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 not8nml,dn xfd,*05vgrn6,dpg(w4j uh d a vector?

  At twice the distance from a point s q6 j 1nkm8wu3w*ik+ov;dm)n charge, the strength of the electric field

  Is it possible to haygk3y3by qqfe;n08e)/ x: tr) 5le cxxve a zero electric field value between a negative and positive charge along the l;/q bx3 r3ge8lef) x:ntxk )eyy5cq0 yine joining the two charges?

  Is it possible to have a zero electric fie(1j w 0ook:ok::a.d tl8rocc3wnyr 1z ld value between two positive charges along the line joining the two chargeo8 : czj1n c3w1rt adl:owy:k o.0rko(s?

  Electric field lines near psitiv tmpo,l26r9 i9vy xdw/e point charges

  The electric field sh63vd-f, n. g xurhw;m(:lbq +btu)tyzown

  Can electric field lines inters)yhq pn3 (swr-zza9;ts5s un:ect in free space?

  A solid block of metal in electrostatic 083tpnax:+:wkshxr - bylfj9equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in ka-p9 hrf+x xjlbyws3t:8:0 nthe block's interior.

  If a solid metal sphere mokpke+) 97vt a;)v9wd9ww1md c 1bjxand a hollow metal sphere of equal diameters are each given the same charge, the electric fie;cpx vdoda1)ww97k +e wk9v )1j9mbtmld (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a6vvel pa9b -5u uniform electric field is directed straight upward. What can bv-uva p59el6be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equili bj3n5xl 1el.rs; -eybbrium near an electric charge

  A positive point charge is enclosed in a hollow metant2wnn:o 3r6an1 iop 7llic sphere that is grounded. As compared noar2:t3p o ni17n 6nwto the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductornl bb2,iqo: qbt0jdb 7 z3/v:iix)(zx s in static equilibrium.

State Gauss's law.

  The charge carried by one electron is 2 tbx1til fs/la2kpwax(hk7ayo- /9* $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.00n( ny 4rh-dj+c mC. How many more protons than electrons does this piece of plastidj-nh +(c4nr yc have?

  What is the charge on 1 kg of proto +ai;lqv.i -bb.m54pfaqddj8tsd ; ;bns?

  An atomic nucleus has a charge of vcg zyw9e2x;t6o i 34u$+40e$. 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 ap,0 9wjlqc-ucdlt0is.5n.bw/5 tzq tnd -4.0 mC, respectively. What is the magnitude of the electri0t. j5pqlb d0 scc-5zql.u tt9w wn/i,c force between them?

  A 1.0-C charge is 15 m from a second charge, a s/omo psfx;9)nd the force between them is 1.0 N. What is the magnitude ;opso ) xm/9sfof the second charge?

  Two 1.0-C charges have a force5f;k tcovj 0a+ between them of 1.0 N. How far apart are they?

  The force between a +z yb(k5d lu7p$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallgef,br+ swl 4t;xor *)y 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force ;gtr4+lxe fsorw,*)bbetween them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Theqysfd8(9y.g w first charge is at the origin, the se sdy 89fg.(ywqcond 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. A charge of +2.0 mC is pz0hm j 0(rsqr,laced 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 rrshqz0 ( mj0,and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following position1/zug5* mtqx89dmpa us: 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 forceut8u*/g9xq1 zmda m5 p on the 3.00-mC charge?

  A point charge of +Q is placeqt;(0o qkwx/ 2-le7eya1 uj xid 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 act x7-;e0qa leioy2j xu/kw1qt(s 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 nCx95oqb0rjl n1 is at (0, 0). What 5 l1 onjrx9q0bis the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0j-6zgy utf8r4 st uq /3bm*)tr+e zk1p6/beeh.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direcj4e6zrtbzk)tr/-qy/ 3*gf6 hp ubue1t8+ smetion of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at th iix6s5eqr ,(f vb2o,fe vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrxffes, r qi,v(5io6 2bostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, whichk2wl:),bldtvxlr h-d ij ;/6 d are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to ;lvxwlbi, :t l)hj-/2dkd6rdplace 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 xzs0kqo)zkfnvwik(5l- e) uh;6j- ,we = 4.0 m. Where on the x-axis ,u w-q-kj6 heozk5lvs k;(zi fw)n) e0can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed atwqr0ul-n q,rr1ibmp)o v4n44k + pcn4 x = 2a. Where can a third positive charge +q be placw1qlpu nqnmr0 )o,vr4ik4c-4n +4r bped so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total of 04 am dt6j+pmf$4.0 \times 10^{12} \; electrons$ 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 kk* +yfg.r +hj *l*xgothe attraction of a fixed proton some distance above it. How far above the lr+fkjx*o * kgyhg.+ *electron is the proton?

  Two 0.20-g metal spheres are hung from a common 8u(nwd4q2 ;uiq8dt sbpoint by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatibtq w 8ud(n2d4iu; s8qc 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 charge of +40e. What is the magnitudreh loyn5z,s.l )8t i/e of the electric field at o .zir)lt/eh8 n,5y lsa distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the ejflwf)g u1dy+k 465i alectric field at a distance of 1.50 m from a 50.01gfyk ajfdi654 w +u)l-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the manm-pzk1rz/,oa ( q2+vsf se.sr qp)0fgnitude of the electric field at the location of the sa01smz2f( ,r+qoe n-p vkpfz s q)./rtest charge?

  A 5.0-C charge is 10 m from a small test charge. What i7iyk9dr k.oq3, qdyj,s the direction of the electric,dy9qi kkjo rd3q 7.,y field?

  A 5.0-C charge is 10 m from a sm3gwe;bl))k hnall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at thblgne ;wh3 ))ke location of the test charge?

  Two point charges each have a value of 3.0btjb.. z .talh0no-,)aiif7o C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two chargesit o.h fza.0obin- ,jl).tba7?

  A 5.0-mC charge is placed 7 wx:w *xyshh0pqk /qulmml d.w8/r.6at the 0 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 the0ykwxx pl/q8d6/.* wwm.hmq :ulrsh 7 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mvc;vxxun((r p6z3uh .*mq4qi eter stick and a -4.0 mC charge is placed at the 50 cm mark. At v(z*uqq. x3rx;ui vnh6mp4(cwhat point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC a2 .ihxd 89t5j 8yisb7 pt/)bz6lr12 xorwry eire placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midw 1rl2 tydi r5x.z82yb x9i/rs )oi7t6bh8pewjay between them?

  Three 3.0 mC charges are at the three corners of a square mz;d+-c fa 3fzof side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the a 3c z-+ff;mzdsquare.

  Consider a square which is 1.0 m on a side. Charges are placed at the cob5r1aan88skfwr jrp7-e1kgl n( m.t:rners 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 electric field at t.mk:j-rs rnt b 5(n8 p81kwefag17lrahe square's center?

  A force of 10 N acts on a charge of 5.* ifsq3blp(j8 /i xc i6hq53mb0 mC when it is placed in a uniform electric field. What is the magnitude of this electric field? ixspf/q 3*6q358jicbmlih(b

  A particle with a charge of 4.0 mCb3h( uzbeg.6y 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 fieldgly,3 ak l.o0p of 6000 N/C pointing downward. What charge mustp,0k.yg3llao be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 ajksdb q9;;d3.v:w k tnC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric:a;9jwk.s d;qkdt3vb field?

  A metal sphere of radius 10 cm carit3b1 3x 3bo2v6qrp mpz tw,;iries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 c1bz bpp6mvt i rxti323;, owq3m from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge o5w hgem2ejt/ .f 3.0 mC. What is the electric field 6.0 cm from thew. m 5hgee/j2t center of the sphere?