State the law of conservation)zn pi.usm,i8 of electric charge.

  Is it possible for two negative chargesxr:(ioa6j j+h cnopmg01y71 p8 b9zgs to attract each other?

  Is it possible for a positive and a negative charge to attractef2ucm zfkh-8 ;jur+ w/ 6v)cm each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rodio *q3g dgwr)zz:)0b l acquires a lr))* gow ib0z qg3zd:positive charge and the silk

  A proton carries a

  The model of the atom sho dafx5ac/yuh 5ps3rc a9dxe.hg4q30 0 ws a

  A neutral atom always heh19u/rzta 2pw -7y,vkw4 mhhmt+k + has

  An atom has more electrons than9 odjx1v:q+s x protons. The atom is

  Materials in which the electrons arei:mjczeml;u, 4u( ys3 bound very tightly to the nuclei are referred to lcyms(i;u4jum: z , e3as

  Materials in which the electrons are bound very loo;;6tu nr(e(dqh 5k ldx7jg.kbsely to the nuclei and can move about freely wixg(6r 7;5 jelb;duktkhnqd.(thin the material are referred to as

  A negatively charged rod is brought near one end of an unchargei3v/ hyhbgx7 .d metal bar. The end of the metal bahiyx3.7/ghv br farthest from the charged rod will be charged

  Sphere A carries a net positive charge, an*xo w ng r4g+,4*clxpnd sphere B is neutral. They are placed near each other on an in*gwxx *ogn,44np+ rclsulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged:a g:y(.py gvto20nfl rod charge an electroscope positively?

  An originally neutral electroscope is bi9kh/ rw7/haos gm47 ey;z )ixriefly touched with a positively charged glass rod. The electroscopo g/ei77 am4k9rwzih)x/ys;h e

  An originally neutral electroscope +q, yn oujl3p1pn)b 0cis grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electroscopeo,nlbu)p jn +0ypcq 31

  A positive object touc8,zlud8elur(mfm4:2 dpco 7 zhes a neutral electroscope, and the leaves separate. Then a negative object is brought near thedz:p,o7lz2u d4(ucm e rm88fl electroscope, but does not touch it. What happens to the leaves?

  A large negatively char+pdyb*lf3 penx a;a(4zt5+v ag5b *qjged object is placed on an 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 the negative object. At no time does either ball touch the negative object. What is the final ce4axv*b tpndlj553+yb; (aqz ap f*g+ harge on each ball?

  Charge is

  What are the units of the Coulomb constantse (-ndrscvli8t4t )) $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge7 du48 ro*mecknmw /uzgn.*wtuu -*q3 is larger in magnitude than the sk*mq 7ut ed.*ogr8w4-z u3n/mnu*uwcecond charge.

  Sphere A carries a net charge antv yz c7564ykpiop8t./y;mqrphe 3+ yd sphere B is neutral. They are placed near each other on an insulated table. Which stakhpymo+5tec8 y q3y./ t prpy4vi7;z6tement best describes the electrostatic force between them?

  Two charged objects attra:p*t kgp7w f;e 1guxq)ct each other with a certain force. If the charges on both objects are doubled with no change in separation)q*e t7:xggwfu;k1pp , the force between them

  Two charges are separated by a distance d and exert mutual attract331o-kpx03 *ox yl kxoe .jsslive forces of F on each other. If the charges are separated bxs lojx x0ls-.3k*3oe13 opkyy a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force fyly)bo b.uyc) 4*zx *F. What happens to the force between them if 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 y 4zy*f*b.bc)y) x louequal to

  An electron and a proton are seppii8fl f- vsqn)yd651arated by a distance of 1.0 m. What happens to the magnitude of thef6 -ispiq)1 f5v nldy8 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 happens0 j1*ps 3bb urnymmf.0faa/4x to the magyxjpf/mam b * b 4u1n.af00s3rnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are s+-6 :p raf) rj8qywcxleparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moveapl+xfy6 8)qrc r:-jw d 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second point c7j7m(. pwgyyrjz (s:jharge 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. Wjr(jywzpm 77:y (.jsghat 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 centroi (2h5 trfh5erid 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 dueh(52 5rhe itrf to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vec mv+s23lwjype1i1 2nqtor?

  At twice the distance from a point charge83ecc-kg3c*2 roe15fv:ygserq6dn y, the strength of the electric field

  Is it possible to have a zero electric field value between a negative djg598hq7lwsh g 43ejand positive charge along the line joining qs97jljdh 34eggh 85wthe two charges?

  Is it possible to have a zero electric field value b5m tlaun8r,c3etween two positive charges along the litn5cl,3u 8ram ne joining the two charges?

  Electric field lines near psi1h avqn 6*y2y/cle6y htive point charges

  The electric field shown u4 tme;fnaeyj1 -0b1/nopb1 v

  Can electric field lines intersecjbx 4:m3wk ,wnefkg0wlbf: :*g6x f6rt in free space?

  A solid block of metal ikbr) x 4dm,y.en electrostatic equilibrium is placed in a uniform electric field.x .mk,4 rbdey) Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sp:dk+p h+l2yx g1xd*swhere of equal diameters are each given the same charge, the electric field (E) midway between the center and thelh gys*+ k :2xxw+pd1d surface is

  A cubic block of aluminum rests on a wooden tabone4 mh0 n2x6dle in a region where a uniform electric field is directed straight upward. What c42hn 0mxo 6endan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electrici* larc/jm5 g+ charge

  A positive point charge is enclosed in a hollow metallic sphere that ibk p*bk +gd8q+s grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere ha pk+k8db*g qb+s

State three properties of conductors in static equilibrium.3 08e* ,o u3gg tnygu+pi(eidk

State Gauss's law.

  The charge carried bz*y/mr e*ju/f0cqdwd j/zqr rmu. 3.-y one electron 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 b8:gti l saxx92v5ec,a net charge of +2.00 mC. How many more protons than electrons does thissvtg lb,95i8c x:xea 2 piece of plastic have?

  What is the charge on :b 1 z4v39dfmx r /npze/bo/achtu:*o1 kg of protons?

  An atomic nucleus has a xe6qh9j c cts xpjhcca55( p(c7:4f3r 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 8xwf6jxdevwq 7 l5v y3 p:)1ddcm, have charge values of 2.0 and -4.0 mC, respectively. What is ljdfd:y)xvpd38qv e71xw 65wthe magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force f0y 4i4- thxjebetween them is 1.0 N. What is the magnitude of the sec4y-xej4f h t0iond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are the0lwxe+ hlo2w 4u bmkg1 0n(hs+y?

  The force between a 6ku l((aq h0jj$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force.j-/e u 7d3y3qfc5x oxn If they are moved to a duc /of ex3-75nx 3yqjnew separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are pu*4 gnml( (meylaced on the x-axis. The first charge is at the origin, the second to thum yge(m *(4lne 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-axisge)t b q:fc4f +mgpt)0. 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 t)g0 ):qpteffb4gmt +c he electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following 8acr8 kp e3a)ypositions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 3ayc8k)erpa 8 = -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*l ;hve54,hmlo;p kv*ss;kaj center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that ano;4 l*s*hej;slv5;v apkm,hk 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);)v8mf de* oi5e 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 forc*)m e8dv5oeif e on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0,xjx ,wg ;e-ly.rq fq/2ojrh mi3h7 x.4 0.10 m); Q3 = 5.0 nC is at (0, 0). jhm7hye3rr i. jxgx;.2x4l-/ow fq , qWhat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilkz*u *i9a lyr7ateral triangle which measures 30 cm on a side. What is the magnitude of the elec ki9urz*al*7y trostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separate pvfwb- p4a):id*2joss)m. oe d by 3.0 m. At what point, on a line between the two charges, would it be p *pi)m.s)s:pa42ovoj we f b-dossible 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 and a +9.0-C charge is at x = 4.0 m. Where on on74o1uk slrk /,mak;the x-axis can a third c1k,olk7un4 mr ;k s/aoharge be placed so the net force on it is zero?

  Charge +2q is placed at the origin aycu -8iplsx)llwx 24 6nd charge -q is placed at x = 2a. Where can a third poy )6lulsp4x82wilx c -sitive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 32)v 6v2vy-lo,avl kwv.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 graux; in5mw.tc6 +6gp/ od 4jguwvity by the attraction of a fixed piw 6xmdcj5uw u6p.t4ng; g/+oroton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung fawut,. g-g u: lvlv ,:tn;/drmrom a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion f; m. :vt: vlwgd,lnu/-uat,rgorces 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 o1lef9a(3 lq ntf +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucleuf3(e19lq nlt as?

  What are the magnitude an,j 0)wtfga55oxwt0 cd d direction of the electric field at a distance of 1.50 m from a 50.0-nC charf5xtc0 0 two5d,)a jgwge?

  A 5.0-C charge is 10 m from a s2 /a /i ul,pwf8duta8qkxu-l * rm2a4umall test charge. What is the magnitude of the electric field at the location of the ,kwl puu28 8ud/u f2qaa4-riatx*/ mltest charge?

  A 5.0-C charge is 10 m from a small tex4 kxew9at5dp -x;lo9st charge. What is the direction of the electx;xkt oa49-d wp 9xel5ric field?

  A 5.0-C charge is 10 m from a small test charge. Wd-w 42x orv 2v4hmsgpqa1l9 1bs1x7 gnhat is the magnitude of the force experienced by a 1.0 nC charge placed at the location of them a422p7bs vdq49v 1o 1sggwxl1xn-r h test charge?

  Two point charges each have a value of 3.0 C and6;gruf u8 *bdp are separated by a distance of 4.0 m. What is the electric field at a point midway between the tw8fuubp; 6 d*rgo charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter st mvc .:ykpf(0t : c-qd9xqq5fjick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm m9qqfq0k:tx- fj dv:m.yc (c5 park?

  A 5.0-mC charge is placed at the 0 cm ma ky 4u8t e*jkcqll2.h1rk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line join.8hl*eq1kct4 2luk y jing the two charges is the electric field zero?

  Two point charges of +3.0 x+wb9jy6 -wwsmC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fielj+ w6s-9b wwyxd at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The hmdf 5evo)g* r0c:jzv75q7o dlast corner is occuphfvcd 5 07dmo*qvoz r7)jg e:5ied 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. Charges are placed at the cornec0y ;cax.ig4 trs of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC 0 .gcyictxa;4 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 itvi7 kzg wb:g()lf,x38fei8*a .rvzir is placed in a uniform electric field. What is the mag.ei )vigl8zkvf,i 7frr*b az x38w:( gnitude of this electric field?

  A particle with a charge of 4.0 mC has a massm ,vm29 y.fct7x zvda, 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 fieldp-8y,yagkpu 7f ( 1ks.rlwgr, of 6000 N/C pointing downward. Wh r18apl( pys ,,y7.f-krgwukgat charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.08 gb yt-2wyvh)0 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction o8y -vwb2)tyghf the electric field?

  A metal sphere of rad g7rb2ayr3wy 4x4qx5+vp5t nbius 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's vq2trnyw5yx 4b4a xr5 37g +bpsurface?

  A metal sphere of radius 2.0 8x en, xqs1 mj1vlxx*/cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of tx xx1smvln x8*jq,1e /he sphere?