State the law of conserv btbtz6ml i6.1m26mchation of electric charge.

  Is it possible for two negative charges to attract erj)2 fy1+:d 3xkinhl hach other?

  Is it possible for a posiwyr nv(+hc851:kqc i dtive and a negative charge to attract each other?

  A glass rod is rubbed with a pifglt /ou5 re8,ece of silk. During the process the glass rod acquo fu, 8tlger/5ires a positive charge and the silk

  A proton carries a

  The model of the atom e5oti pw-bs+(kfxsa+7 6e)f gshows a

  A neutral atom always has /p6k .0e+xfqk-hbt7 .dam kng

  An atom has more electrons than pzzmcolf- -l,t3rm mrg0d2 d+: 5k3u yjrotons. The atom is

  Materials in which the edze.f0 jjmt2m4n( n t0lectrons are bound very tightly to the nuclei are referred to as ( nj0td j.2fz0m4etmn

  Materials in which the electrons are bound very loosely to the ns/bq-ekd bwes/u n9+0uclei and can move about freely within the 0/bnesbkwse- u+ 9qd /material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. The4t8a n2v;m l*o; zayi:9 vrkwsfmkv8/ end of thvk az yv4r8;nafi92to wsm8;vmkl* /:e metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charga1q3tlno zqqr8noz / 1m2fg+e2) gy9ge, and sphere B is neutral. They are placed near each other on aq1 ma)zgo +gg fy 2ze9qtlnqr321/on8n insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rodv1 0)t hp7 juxbl1adon3r p07e charge an electroscope positively?

  An originally neutral electroscope ).kotlm.oj :iis briefly touched with a positively charged glass rod. The electroscopi.j.ot :ol km)e

  An originally neutral electroscope is grounded briefly while a positively chargi46j8gd 5(nh7r aoc* gvios3ged glass 5asg g hrd4oivn6 j78co*3ig( rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscop. lzrz5nue)q1e, and the leaves separate. Then a negative object is brought near the electroscope, but doez15 ezlq.nu r)s not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tabletxy:nj,3 mf *l. 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 tox:jl *3 ynm,ftuch 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 constantz+lvd:ve(r p7 $k$, which appears in Coulomb's law?

  Two charged objects are separated by a aqime3 78hnky iv(3+ldistance d. The first charge is larger in magnitudimq 3vn+ 7iyh8al(k3ee than the second charge.

  Sphere A carries a net charge and sphere B is neutral.opzgbzga0b9 2yk8x2 3 They are placed near each other on an insulated table. Which statement best describes the electrostatic for9g2zpa0bkbyzgox 3 82ce between them?

  Two charged objects attrazp ;,yj90jff3tv 6azx ct each other with a certain force. If the charges on both objec ;6fty zjf0vxapj, z93ts are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive for+n 5:/5un 7n/o 7bnsv tpyinymces of F on each other. If the charges are separated by a distance of d/3, what are thmiony nys7 pt bnv+/ nn5/7:u5e new mutual forces?

  Two charged objects attract each other with a force F. Wh7xrr+wvcw1 n :at happens to the force between them if one charge is doubled, the other charge is tripled, and the x1 nvwr:cr+7wseparation distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separz(n.p 8wbj :arated by a distance of 1.0 m. What happens to the magnitude of the fon8 r(:j ab.wpzrce on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separat77rd1vig-q 1 zoets i7ed by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the proto7v qsg117d-z7tio rein?

  An electron and a proton are separated by a distance of 1.0 m. What onjo:-e9gj+x4 ep b:xe y( qe,happens to the size of the force on the proton if the electron is moved 0.50 m closer to the prooq- :epge9: bej+xxjon4y( e, ton?

  A point charge of +Q is placed at the center of a square. When a second point ccx4 9d1 r4hdjrharge of -Q is placed at one of the square's corners, irdxrj9 44 c1hdt 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 electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the c y*:.gjeqf9lccj-c *s entroid 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 t:. geyl9j*cfcj sc q*-o a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vecnf91lu fu y(07g, d,h rzz0uewtor?

  At twice the distance from a 7h8yv,-(0lu f fuiq b;o4j sgipoint charge, the strength of the electric field

  Is it possible to have a zerom0+yox(s0o*i ur w fk. electric field value between a negative and positive charge along the line joining the two charge.x *i+ wym0o(uf0 krsos?

  Is it possible to have a zero elect 7t/ hn7ghmlabvi;1 6puw.;ayric field value between two positive charges along the line joining the two charge6 p/.htb anw 7lvy;gh1ium7;as?

  Electric field lines near psjwt: g9naw3xtbhpuhi2:(w ) 9r5k w, yitive point charges

  The electric field s.-aljaxlk o; 8ogr. l+hown

  Can electric field lines intersect in fr,u ,qb. *pfmffd0 rslh5dd(/c ee space?

  A solid block of metal in electc,fc*jmtiv6g, , w5k))gzlo s rostatic equilibrium is placed in a uniform electric field. Give a scct,)zl)f gg, okw65v imj*s,tatement concerning the electric field in the block's interior.

  If a solid metal spherb3sqmikvh 3 8/e and a hollow metal sphere of equal diameters are each given the same charge, the electric field /iqbk338svmh (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regokt)n 98t8l leion where a uniform electric field is directed straight upward. What can be said concerning the chartnl8 l)9k te8oge on the block's top surface?

  If a conductor is in cn opk (db9+.fpsv 4o,electrostatic equilibrium near an electric charge

  A positive point charge is enclosed c i4hck**d l)noc sb2*11z y2me+wpdain a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point dihndpd**aym)w c ck2 1 c1ls* eo2zb4i+rectly above the hollow sphere has

State three properties of conductors in stqvc ob.s wato*u7n;,ill 5 h:+atic equilibrium.

State Gauss's law.

  The charge carried by one electronhn*:om6)not lxy( ls, 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 c/zi)38,o mfqhne 8gxj harge of +2.00 mC. How many more protons than electrons does this piece of plax8fhm3 oqgz/ i),e nj8stic have?

  What is the charge on 1 kg yqtp0(edx e+ :of protons?

  An atomic nucleus has a chanvi w7 v(8fz(x 4wamf,rge 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 5eatsi: f fq**cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the et*q:iaf*fs 5 electric force between them?

  A 1.0-C charge is 15 m from a second charge, andc g7wkr+6 k):mn/jbmq +edfr+ the force between them is 1.0 N. What is the magnitude of the seconr+mkq7w r +kben6+/j:mfcg)d d charge?

  Two 1.0-C charges have a force between them of 1.0 +:tang6z lk4 yN. How far apart are they?

  The force between a v*idz0fsw/*( g0vro g$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initi )a::gbty lc1sfw55vaally 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separst1w5lf ygb: a v5:ca)ation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on th*4wqm-d04m 6 ofrfow-s* (ly( wm.ug5q ho pqde x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and thew d-(y dqm0*4f 6 -4 mro5.pulwf*qqs gwhoo(m 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 ++4oxle; d heib/zj5tmC is placed at the origin, -2.0 m C to the right at x = 5db5tj +;l xh o4e+i/ez0 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: l1r 3et(1 na e*dnej8xQ1 = 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 13x(*ed8a erj1 lentnthe magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and60 nppqkr,7pcr7i01fn-cj (qk eu 3gm 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 c qcemn 37rfuki0,0 176pgnp(qj- p krat the lower-left corner?

  Q1 = 6.0 nC is at (0.gpme;r)n, m 1n30 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 the 5.0 nCmg,en )rn ;mp1 charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 gmn5di,wxe*fc1 ,g zf, cd 3i4nC is at (0, 0). What is the direction of the net force ifn gdie,wc f,*,14d5m 3z gcxon the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral twz 5 wqqns/8+ *( jkl7ps1)omg- qrizrjv+x+sriangle which measures 30 rsl vp)q8/s +- qr1+izx(wz7 s*g+m nqojjk5w cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 61 cqv7gad lu9m l5lk9m. At what point, on a line between th9ug6mk 19a 7dlclq 5vle two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin ani:scm me 9 c492o;twxgd a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge s 4 ei2mt 9cgxo:9;cwmbe placed so the net force on it is zero?

  Charge +2q is placed at tjk2k (74ka i 4iuiislngl6-9she origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the forclkn4 ja2s iuki9iksi6gl7( -4e on it is zero?

  A copper penny has a mas2pzcu8l5p8y1hu0 a xms of 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 attraction of a fiq-c vaa*5 p* rja-c7m g+wwdl3xed proton some d-ldavpm c-+aq* cagw3*w5jr 7istance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point bk *r8ypr*fi124t woxxy nonconducting threads which are 30 cm long. Both are given identical charges, oyf*x8i rxk*r1p2 4tw 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 magnitude3 3.fj;bqr norf,x. ht of the electric field at a distance of 1.0 m from the n3,tb;rqofxjhr. f 3.nucleus?

  What are the magnitude and direction of the electric field at a distance wbg vrehtoh :,z7n2-0ws w;1 jof 1.50 mhw; nj 7v rzs e1bh,2g-w:otw0 from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Whan:ozk37epszq cq z;7hu8-jz;- s dzs7t is the magnitude of the el3n 7zs o-qzpd ;e7zsk:qj8zzh uc-;s7ectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What io-yp 8e8hf*pe-bs n1e s the direction of the eh y1 s8o-*p-eneepb 8flectric field?

  A 5.0-C charge is 10 m from a small test charge.es o8 o8k r5iql0z)k)x What is the magnitude of the force experienced by a 1.0 nC charge placed at thl eso8i8 o) qk0r)5kzxe location of the test charge?

  Two point charges each nl98r*giz o 7rhave a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric r8l gi7z*onr9field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick andte78 f28vb ldawh4xm7 a -4.0 mC charge is placed at tw8mlthv4ad2f77e 8 bx he 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a metr c) xr8fh 8cu, gq-tph81c*lker stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charge c *, c1rxf8h-c8)hupgkrlqt 8s is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 my s,qsxs/:3iw/xwpx 4. What is the magnitude of the electric field at3 ipwx/y/q ,x:xssw4 s the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0. d wncxn cbmf5)-+)v7s50 m. The last corner is occupied by a -3.0 mC charge. Find the elnd 7mw-v5s bxnc+) )cfectric field at the center of the square.

  Consider a square wh lylthfdxv2c73 k;p .+ich is 1.0 m on a side. Charges are placed at the corners of the square as folxft7d v c;lh.k 2y3pl+lows: +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 2 qc(2msf4clw is placed in a uniform electrilf( csqcm224wc field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has3wrqr x) +bc6hkvr;d4yj/ ze, 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 of 6000 *n (s z1ai8p/:qom5x2tdthbwN/C pointing downward. What charge must be placed on the badm /isaz 1*nw5b(tht:8q xo2pll for it to be suspended?

  A foam ball of mass 0.150 g carries a chavsjm 9g5nk0rto+ c .p+(z /yrhrge of -2.00 nC. The ball is placed inside a uniforpg.50/jyrz hkv+tnc(s o+ 9mrm 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 carrit460f/zer 9 3o pbnf.l0gohffes a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from th4fl tf/pef gh0nobz 9 of3r60.e sphere's surface?

  A metal sphere of radius 2.0 cm ff :-i h.psgj4carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of-gipjf4.s: hf the sphere?