State the law of conservation of electr 8:x2 ssquj8hkk8h 7emic charge.

  Is it possible for two negative char q3gl/b,i ja;xges to attract each other?

  Is it possible for a positive and phde*yf n, m:62rdreasf/;l, a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Dur;rsg,yqj .9 roing the process the glass rod acquires a positive gjq,yro9. sr; charge and the silk

  A proton carries a

  The model of the ato6/4m*c8lmf1j h wbh lrm shows a

  A neutral atom always ;7r bvmk9e5xs xl0 id8: sazvbq6u* 1thas

  An atom has more electrons than protons. The atom k yj++/0 z gla vw8i sfh;(h4r5mqtmv-is

  Materials in which the electrons are bound very tjj*rq- vwr5 9rightly to the nuclei are referrerrq*-5j9wv rj d to as

  Materials in which t- togs)ae2/ yn9bwy r3he electrons are bound very loosely to the nuclei and can mo t)gn3a2o9 -bwrysye/ve about freely within the material are referred to as

  A negatively charged rod is brought near on t8mibr*-,flr +i ,jike end of an uncharged metal bar. The end of the metal bar farthesjtifr+ii*- bm , k8r,lt from the charged rod will be charged

  Sphere A carries a net posi;syyfh* 4 tas .)yy+jgtive charge, and sphere B is neutral. They are placed nejgt .syy ;h)af4+y y*sar each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively? : v.dv.l d871hcpnbr-jgu:b f

  An originally neutral electroscope is briefly toucbshw8u9o) f 1)g w8djfhed with a positively charged glasff8u) obs9jg8)wdh 1w s rod. The electroscope

  An originally neutral electroscope is grounded brieflydtjx ix50q) x7(mwd q;:-+qe 74p8gu pd bifeh while a positively charged gl +dq:j h7p0 5-8gxt)e(wbq ;uipmxi7dqf 4xde ass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the lea5n+ltiyw10s cey+ex - ves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens toleye+sc t1-n5xy+iw 0 the leaves?

  A large negatively charged object is placed on an insulated table. r:9zjb rjer17pg j(xzm d b0fx:/s*t( A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral met(xdjmfgzzb7 rj*/tbj rxs1pe09::(rallic 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 charge on each ball?

  Charge is

  What are the units ofdr e.2l 6wp.lx the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance rl (p2m k pob(7z97 yfphm(b7bd. The first charge is larger in magnitude than 9fh(bb(k7 y7r (l bm7pmpp2oz the second charge.

  Sphere A carries a net charge and sphuuq5c f hzse+0;)el0x ere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betwee0z)+ xq5 fcehsu0lu ;en them?

  Two charged objects attract each other with a certain forv)6gvt*xm e4d ce. If the charges on both objects are doubled with no changvgm* ex)v4d t6e in separation, the force between them

  Two charges are separated by a distance d and exertkd+6 fj6sj8vi mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are k isdjj6v8 f6+the new mutual forces?

  Two charged objects attract each other with a force F. What happens to thi0lua-q u( edzr ew) 9c1(+wlae force between them if one charge is doubld9lw q0al)eri uwzac1 (u-e+ (ed, 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 .jt6j c5ix)p+eu2 x/( cvtey nhappens to the magnitude of the force on the proton if a second electron is pl/5j+c. ( 2y6ettcexvpniu)j xaced next to the first electron?

  An electron and a proton ar d2:d,yf dm7rj/bn ynt75z3sge separated by a distance of 1.0 m. What happens to the magnitude of the force5d rn7j mt/s: gndby,237 zydf 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 donel( mauh3 w j7+ 2ix(e0,olhappens to the size of the force on the proton if the electron is movo ul3h2jnloe7d(,m w0eix (a+ed 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squ37zi ve gqk81eare. 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 electrostatic force acting on the positiveqz81 g7e k3vie charge at the center of the square?

  A point charge of +Q is placed fmhf9ov)1, twb/llo1 m9rd *idu7 a)nat the centroid of an equilateral triangle. When a secon 1/udmt)h7fi91r oawobd9lmlf ) v ,n*d 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 placed at one of the other vertices?

  Which of the following is not a vz46-oz y- *txrt)qmco ector?

  At twice the distance from a8u ogl8 ccd5w6 point charge, the strength of the electric field

  Is it possible to have a zero electric fdvnyt) 879w ooield value between a negative and positive charge al8yv7dnt w oo9)ong the line joining the two charges?

  Is it possible to have a zero electric fielpaa; 8w.yt8ceb /ta5j3jau 1gd value between two positive charges along the line joining the twog8; p1u tbaw3/j.aa5 tecy 8ja charges?

  Electric field lines near psitive point chargesl /ylg;2 ptk3 g fsb/:6xwr,fr

  The electric field s-9k*kcc 5la ib6av ,ove *i*gnhown

  Can electric field lines interse,9xnlys jtg.4ya+a3)mt s9 a+8v m wskct in free space?

  A solid block of metal in electrosta cwcz,kg 3hs,9tic equilibrium is placed in a uniform electric field. Give a stag3z c,hwk9c,s tement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal spjt 5to95t js;nr9u:c:k aou b.here of equal diameters are each given the s;ou5jtk t :us99nt 5bo:.jcarame charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden 5uh su( :ily /:mtrchs);ea 0vtable in a region where a uniform electric field is directed straight upward. What can be said concerning the cha hya/r ) :v0itu;hsmlsuc(:5erge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric charg;,qx-nvlxhr -b) mv u4e

  A positive point charge is enclosed in a hollow metallic sphere that is gro8(sh jxuc4z+ munded. As compared to the case without the hollow sphere, the electric field+h m zsj4cx(8u at a point directly above the hollow sphere has

State three properties of conductors in st:gresdi:oun9ci(sv2u( sr 4 ) atic equilibrium.

State Gauss's law.

  The charge carried by ovw)vhi9 rl4o.ne 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 a net charge of +2.00 mC.ns-)bgrcq)mzrc1(q8 ulk-(t How many more protons than electrons does this piece of plasti8k()( nbus1mrzqgt)-r c l-cq c have?

  What is the charge on 1 kg of proto 1j bxrv(awm*,tz,s m(ns?

  An atomic nucleus has a gj0blkp la -xdqt t)zl 5wkm*0z1:p (/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, havi m v2ylu :n)etj,hr:-e charge values of 2.0 and -4.0 mC, respectively. What is the magniti -eu:j mhrlyn2vt, ):ude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forcwkra2yu2:+f9/kzgga;:h ns;gv nd2c e between them is 1.0 N. W/a::wdsvfn9zu; ra+ gggk22 hc2y;nkhat is the magnitude of the second charge?

  Two 1.0-C charges have a jyz1n,fg1n 1dforce between them of 1.0 N. How far apart are they?

  The force between a o/kh ha0k ys23im );3m q0j4vw t+uuwb$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, inits d45m9rqvbnlhhv:r mo cl+;, 7ej 9,lially 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 fo:v47rh+mh9lm,bdllj,cv 5on eq;r9 srce between them?

  Three identical point charges of 2.0 mC are placed on t1,v i l.0xq- ecdp,b ikx2vcj,he x-axis. The first charge is at the origin, the second to the right at x = cjcx0xkqe,2ivbdv -i,.l p 1 ,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 +mwn l0u,1p4x5y 7/njods .hns2.0 mC is placed at the origin, -2.0 m C todny.n5 ms pow 4/l,0n7u jhxs1 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 posw1l i(m:g 3bt8czlvn4itions: Q1 = 2.00 mC at x = 1.00 zb:4v( ti cln8gmw31lm; Q2 = 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 placl/ 0qm1c n5r(obm:mqy* p8po xed 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 acts on the positive charge at the center. What is the magnitude qmr1oq8o/0pp c5xm lmy bn:(*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);op1( l3-z ivng;onq4 0np k3mvy 7f/8,y xgbhe Q3 = 5.0 nC is at (001ygznqnn7mveopg(y x ,3 li hf4 o-p8/3b vk;, 0). What 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 nC is at (0, 0.10 m); Q3 = 5.0 nC is athwom2*v o8-48hx cz/5-a cfmefy2ofw (0, 0). What is the dihh c5owzx-/o ec2 myfo488a2fmvw* f-rection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verticd ebvev u.k2vw fe9,48es of an equilateral triae vw28 ,9bevu4 dfek.vngle which measures 30 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 31f38qk idw6s qg h*+ut.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 electrostatic f6wishq8*d f1 +ugqt k3orce acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-zu 8p.w9.pvhoC charge is at x = 4.0 m. Where on the x-axis canpu9o zh..8w vp a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is plaev+5pmpn7 *mwced at x = 2a. Where can a third positive charge +q be placed so t+5pp7emm*n w vhat the force on it is zero?

  A copper penny has a mass of 3.0 g. A tot (j8o tt z y(s:m0v5lumkmn*c/al 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 attr m5u y7ywv;evkyw0y( vq,/f 9 ayy0n2uaction of a fixed pr y2 w;yua,uyvw nv7 /(k yv5ye0mqfy09oton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal sphereqs -.*4lhasw 3l6pqk zs are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle betw 3s6 hpk.l4l* sa-qzqween the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus hasr-cb2 uvls+)ong)4l n a charge of +40e. What is the magnitude of the electric field at a distanc+ sroug)b lnn2c)4-vle of 1.0 m from the nucleus?

  What are the magnitude and direction of the x. /rz, ppqt indfd)z6o)3jn*0h1cea electric field at a distance of 1.50 m from a 6a0 zoj,.i*/n1rfedztq3 n )hcp) pxd 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. m f*z1o9)dnwkx3yyter4 e 9n 6 What is the magnitude of the ele 6 oy3 n 4fkn1zr99medyet*)xwctric field at the location of the test charge?

  A 5.0-C charge is 10 m frobae)et y 7v hcczk58pc.6(dz*m a small test charge. What is the direction of the ele*6h 87.p)zv e5cab kcdecz( tyctric field?

  A 5.0-C charge is 10 m from a smakpci 4l q,+f6s*i wa9all test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tesip+*6af9 4waq il,ckst charge?

  Two point charges each have a value of 3.0 C and are separated by a di4d kjs;+cc: usstance of 4.0 m. What is the electric fielsu:;s4cj k+d cd at a point midway between the two charges?

  A 5.0-mC charge is placed at t 91*kvlvuu aw,he 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. Whl uu*vka19 ,vwat is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark z8;4d/i,l qncgjiwh :h,lf ;c 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 two chargz,lhd4jnh; i:cf;/q g,i cw8 les is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0:z ante85k9cs fw md9 /dw-u-l.20 m. What is the dsn-a9dw: /efw8t9 l-cuzk 5m magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges aq qrbl2lu y.e4+c*+bere at the three corners of a square of side 0.50 m. The last corner is occupied by a*+rlq4 e y2lb+bue c.q -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 placedpo7ne/,idvt b p3e13m at the corners of the square as follows: +4.0 mC a 3oend vp3m,7/etpb1it (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 is placed in a unif6 lebt)fv/;riorm electric field. What is the magnitude of thi frvteb;/) l6is electric field?

  A particle with a charge of 4.2kq4w/vtn le10c f.xm 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 in an electric field of 6zc- 8jkh )kz/a000 N/C pointing downward. What charge must be place ck/k z)8h-zajd on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. dh+dpi )jc3d; 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 electrj;c)3p idddh+ic field?

  A metal sphere of rad:vgqjqx nonx8 5 l ao066y )z+1mzwav7ius 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 8 qvl5n 1ov az7 n)mo+ 0gx66azywx:qjcm from the sphere's surface?

  A metal sphere of radiu8 0zyllgc. *t:vmpifuozxn 38y)m/ 3us 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.luv./ :ug py8)ixz nmzcl8* to033y mf0 cm from the center of the sphere?