State the law of conservation of ele(/aypgt4 9w:4c-fyg aocka5d ctric charge.

  Is it possible for two negative charges to n gl ly2,:vyz8attract each other?

  Is it possible for a positive and a negative charge to attract each or4.;n-k9p 1/6u6b rxiic m0uanknnugj1v ) dm ther?

  A glass rod is rubbed with a piece of silk. During the process the glass rodc ,it08nn5(t k.uln+ g o v8bmb hzpp.;uzec6) acquires a positive charge and tz+t (0hnucgb.n, nob)6k;pm8pvceuz.i 85tlhe silk

  A proton carries a

  The model of the atom shh*aq1;/ap2ro1 6a pgczaxtb-k i 6yf/ows a

  A neutral atom always *2s*ia ltwcwl5 3f nuez/ k7:phas

  An atom has more electrons than protons. The atomr4y cv1 k +fs0hso1uk6 is

  Materials in which the electrons are bound very tightly to the nuclebu n.gr4mj8,w i are referred t8n,4 mwj.brug o as

  Materials in which the electrons are bound very loosely to the .g/ vw2j:itq4x.s 0xrj)kjrt nuclei and can move about freely within the material :g0sk.jj2wj q xrtir/.tx 4v)are referred to as

  A negatively charged rr kr5wgsw(8fiuf44+ nohg4 ag, lo60hod is brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be 5f4u84r4 ,hfog+gowr w60glai n (hkscharged

  Sphere A carries a net positive charge, and sphek9fjj.hi 2s .ql 3s;tgre B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that iqi9 .;fkgjh3jt 2s.sls grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscopeulg7-qys1 v le g/o eb+(,nw+i positively?

  An originally neutral electroscope is briefly touched :wdl3h )ff7+s f8kmhf/gyg h)with a positively charged glass rod.f)f3 l mksghhg: +f/wf8) h7yd The electroscope

  An originally neutral electroscope is grounded briefly while a positive;lqw9s1 ndi4uw0 -ctd mcrl14 ly charged glass rod is held near it. Aftes wdll-m4c4u cindr0; t9wq 11r the glass rod is removed, the electroscope

  A positive object touches a neatc0 d pwn z*+n(79lqhutral electroscope, and the leaves separate. Then a negative object is brought near the electroscopt(ah+dp cn7n z*lq90w e, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tableltfc( u+ x5.un on.z0e. 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 ob5x no.etfc .u+lnz (0uject. 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 j 4o)z ktocl)3j8sl)j bu)q*;x u5dk rthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated b/poez1 ,k9yt zy a distance d. The first charge is larger in magnitude than 9,k/1yozpzet the second charge.

  Sphere A carries a net charge and sphere B is neutrajbqz,1e 2j6d kl. They are placed near each other on an insulated table. Whi,zbd qe2kj6 j1ch statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain fo z)m0zit ust*.qbe:9r rce. If the charges on both objects are doubled wtemsz.z 9i* rb)qu0:t ith no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces 6:h;tfyn8wupkg 5w(-lmzl*os 9 jm c8of F on each other. If the charges are sep*-c6fk (8gwuh;p:lmsnj 9o8 y5mlzwtarated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the fo76wsop8etd s -rce between them if one charge is doubled, the other charge is trip-7o8we ss6tpd led, 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. Wku( s8/ kubad0hat happens to the magnitude of the fouab/kd s0 ku(8rce 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 happens w8mpsfn* o ;jq6f31ykfvi)u -to the magnitude of the fofi-q1y38 m;)jvk fns6 uop *wfrce 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. What happens )i rd1j1k4)wha7hjzh to the size of the force on the proton if the er 7 j4khjh1d)1wihz)a lectron is moved 0.50 m closer to the proton?

  A point charge of +Q is pqw) th.o +j.volbas) 0;dni5suq( 2r placed at the center of a square. 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 corners of the square. What is the magnitude of the net electrosta) iqp5soh );t d0sn2+(wo.jv q laru.btic force acting on the positive charge at the center of the square?

  A point charge of +Q is pl6j ej:y)ay a)saced 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 charge of +Q places) )aajy j:ey6d at one of the other vertices?

  Which of the following is nocf1dp.+4 8wam 0hcysuz/,s s nt a vector?

  At twice the distance from a point chat kn ulp9r76f+rge, the strength of the electric field

  Is it possible to have a zero electric fieldh4 co/anb*u/ q value between a negative and positive charge along the line *ocq4/hbu/ na joining the two charges?

  Is it possible to have a zero electric field value between two pog96 vum f 1m4wd7usjy,sitive charges alm 7,4s gyjufvmd wu169ong the line joining the two charges?

  Electric field lines near psitive point chudse6fw39j j*pm+i 4s arges

  The electric field sho::u1io4 o6unrazor ;c .snm o8wn

  Can electric field lines inq3aj+uu/ swj(wo- ld/ c5pr9jtersect in free space?

  A solid block of metal in electrostatic eqxafi33u 5cg 1muilibrium is placed in a uniform electri g 1i3ax5fmcu3c field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow 4 jgqxov7jk qi6pjbn8 8,920 bozcj3 ometal sphere of equal diameters are each given the same charge, the electric field (E) midwaynxjqbv zpgoo 06c84j3ojqjb78 i92k, between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a i)p4 j:ugtc75dfix.mjjj k +f 646prlregion where a uniform electric field is directed straight upward. What can be said concerning the charge on tmijj)tlxfgdp7: + f6 j44 65kcj pru.ihe block's top surface?

  If a conductor is in electrostatic equilibrium near an ele gk/sxw09y x9sk1rls6 eqns)e+ o d1j7ctric charge

  A positive point charge is enclosed in a hollow met bj: ig::z6cs- mdb6taallic sphere that is grounded. As compared to the case -6adsmg:tcb:6:ib jzwithout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in statift/ 80l6jewcg if wn xlk29)(zc equilibrium.

State Gauss's law.

  The charge carried by one electron is s6nh/sq 5)zqfz y p)i.$e = -1.6 \times 10^{-19} \; C$. 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 pr .r .o:xgzz fb/ zt ,.d:wx,kzq:yuq*yotons than electrons does this piece of plastioxr*:k :f gy:./z.wutyzdq,. ,xzz bqc have?

  What is the charge on 1 kg o :suex7yh-y s6bf:m6df protons?

  An atomic nucleus has a cha/aj/d 7q jqo*frge 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 values +/j 6.pyapbq;lvb 1uiof 2.0 and -4.0 mC, respectively. What is the magnitude of the elepb1a y6up.ql ;bj/v+ ictric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0ox rfe sdx 1a+4r*, g8ysix9.q N. What is the magnitude of the second charga1x .sg*8xq exirs,yf9 rdo4+e?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are th*fcahe3l9w6d xv4cg /ey?

  The force between a ak2 azug8q2,y$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experejikb t b2 -xzn(rd7+u i+.lq:ience a 1.0-N force. If they are moved to a new separation dbbl-++t.ixe(2: k rn7ujiz qof 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-aa6;1r0okgs t jl ac+r2r y4ul/xis. The first charge is at the origin, the second to the right at x = 50 cm, andtcau+0 ajskrgr2o lry146 ;l/ 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 pl3rlp1.owuis yv :le: /aced at the origin, -2.0 m C too:sv/rly.e w1i 3u:pl the 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 located at the following positions: Q1 = 2.00 mC ab(s-ru(np ox ej(u (*kt x = 1.00 m; Q2kesuuxp *nor- j ((b(( = 3.00 mC 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 tyl/vr26l ap go4yms52 dm0 h.uhe center of a square, and a second point charge of -Q is placed at the upper-left c 4h2s.gmup yl ar /5dy260omlvorner. 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 = ggxvvg zhg9l6b* nu99z;g7 f1 5.0 nC is at (0, 0). Whatfhg7*lzv bgv69 n1;99ggg zux is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 kfzh(2nji*gwnl 4l2 1nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC glli(zh *k4 2wfnj21ncharge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilat,ge tsn w0)n2kw,+w *vbmvf:keral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which 2 nsw*vb+:gw)f tn,kwem,0 vkacts on any one of the charges?

  Consider point charges 4vj)g5hgx+ros lws 2 -of +Q and +4Q, which are separated 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 electrosta2vj-s4rg 5)wsx gl +hotic force acting on it would be zero?

  A +3.0-C charge is at the origin and a + ukm;2lw 9vv 7ku1ii9g9.0-C charge is at x = 4.0 m. Where on the x-axis can 9uk;i92u giw71kv lv ma third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and chargeob-+quzg l 7e/ -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it i7 /u-ezglq bo+s zero?

  A copper penny has a mass of 3.0 g. A txr k; v1bm ,fh6d0x5vdotal 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 txkx x; g.rgx*7r j:+txluf--qhe attraction of a fixed proton some distance above it. How far above the -lrfg*.x7-xjxxtgqr:; ukx+electron is the proton?

  Two 0.20-g metal spheres aeq; ):n;d3s;6 z nca2 dnzuvnfre hung from a common point by nonconducting threads which are 30 cm long. Both are give dq);nv;zua3c:nznn 6 efd ;s2n 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 charge of +40e. What is the magnitd 6,p;;v8v9zjttwagoude of the electric field at a di9wvdv t aojzp,;tg8 6;stance of 1.0 m from the nucleus?

  What are the magnitude and direction of -bq /6;t+fj8j.yc +oefdm ;bj p6clgu the electric field at a distance of 1.50 m from ajtdyfeo6 /jc p8g-bjcq+; b l.+u;f6m 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the ri9t pi:tgp,o8r 6ir;y+y x -tamf-*a magnitude of the electric field at the location of the texry; i:9r pa*tat io-g68,- yptr+mfist charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direc3 g lg/9giisj.dz. )sotion of the ele.g)gdsz3s ji9l .gi o/ctric field?

  A 5.0-C charge is 10 m from a small test charge. What is the lno .2u: lxjwd v1uv69magnitude of the force experienced by a 1.0 nC charge plx6 wu9vnol1 lvjd:2u .aced at the location of the test charge?

  Two point charges each have a value/gj/2qml y0n tvni0b5 9e4owu of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two char2/qbe0 u0 gwvontyj n/49l5mi ges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and aa 9 q8-mn i-)cvdy6idg -4.0 mC charge is placed at the 50 mda 6 dg9iy-8cqn i)v-cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed v*8d4 en45 jlygnakx/at the 0 cm mark of a meter stick and a -4.0 mC charge is p4j a* l8devn5nkg4x/ylaced 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 mC and -7.0 mC ar*: p :sbwwjg8ue placed at x = 0 and x = 0.20 m. What is the magnitude :wub*g: jp 8wsof the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m.,x5(7o 3zhqog2/alp+rs qopez- ja k: The last corner is occupied by a -3.0 mC charge. Find the electric f2,xa goj-5leqq:+ppr s ko/ho7a(3 zzield at the center of the square.

  Consider a square which is 1.0 m onho ;w 6y;i:oab a side. Charges 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 electric field at the squo;hao ;y6wbi: are's center?

  A force of 10 N acts on a 4zsf:qu c dj1u q25e-wcharge of 5.0 mC when it is placed in a uniform electric field. f-q4cu:e1sqz 5 wu2jdWhat is the magnitude of this electric field?

  A particle with a charge of 4.0r l 44.p zk2 f(-zg1vqlru(ewt 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 field d)e4svht0vq *of 6000 N/C pointing downwardse0 )v*tq hv4d. 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. vn ps2h-(ksl; The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of thenlhk s2p;v-s ( electric field?

  A metal sphere of radius 10 cm 8zyq711nbyk -kx p ui8carries a charge of +2.0 mC. What is the magnitude ky81 7kbip u -z1n8xqyof the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the e ke.azn8pns4. g5uyz:lectric field 6. p84eu.znzsn.5yakg:0 cm from the center of the sphere?