State the law of conservation of electric cv3k1 mxlc;y 7wharge.

  Is it possible for two negative charges tyj.87rs;b .x 4ito xg+/p aeibo attract each other?

  Is it possible for a positive and a negative charge to attract each oew.gxbe r8 f(. v89os 6v2 1teipv*k2s7ihfbjther?

  A glass rod is rubbed with a ocln*qxb5 /) jpiece of silk. During the process the glass rod acquires axjo 5c nblq)*/ positive charge and the silk

  A proton carries a

  The model of the atoh evaot,e3/n . aie;x o,c hppg:3gy/+m shows a

  A neutral atom alway :1bojr rxhd96s has

  An atom has more electrons than protons. g iibe2v+s (.hThe atom is

  Materials in which the electrons are bound very tightly , j 0duni1jl;zm+ly6fto the nuclei are referred to m,z;0n +jdyllj6ufi1 as

  Materials in which the electrons are bound very loosely tmml9 t. u0q-yho the nuclei and can moqu0-lym t9h. mve about freely within the material are referred to as

  A negatively charged rod is brought near4p-ez(a l-x 7 zej7mqr one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will qax47emelp zzr 7j--(be charged

  Sphere A carries a net pwjvcv suzp3; zpmu3/d. md ga 363qm;:ositive charge, and sphere B is neutral. They are placed near m v;ujpap gw;q:mc 3dds z6mz/3v3.3 ueach 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 posi + d. wxz46tuxaumb(t9tively?

  An originally neutral ele3 5;4ql6xsxbzysxv )mkk77 dm ctroscope is briefly touched with a positively charged glass rod. T;sb67qxsv m z7lmky5x43 x )kdhe electroscope

  An originally neutral electroscopeczmv(165 he mz /jfyz- is grounded briefly while a positively charged glass rod is held near it. Aftf jce /myzz65z vmh1(-er the glass rod is removed, the electroscope

  A positive object toujhw0a gj--xj oq:)ih *ches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, b0jqh:*owa-j xhgj- i)ut does not touch it. What happens to the leaves?

  A large negatively chaoj.ruo;s on. ;rged 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 touc.nr;oo .u jo;sh the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb consta5j u(hr(c7kc// csthg nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first cq pybyj)k.ue s1 ;c4tyh-+5ewkfm+ y 4harge is larger in magnitude th+5.s4 meyby4u e;h+q - kfk)1t yjycwpan the second charge.

  Sphere A carries a net charge and sphere B is neutxnol3sc+dv ; v j20+l5 v;jqziral. They are placed near each other on an insulated table. Whic2vcs; jodlz+nqv0 l5ijvx 3;+h statement best describes the electrostatic force between them?

  Two charged objects attract each othz qvtdq*.k7 qxla 733ser with a certain force. If the charges on both objects are doubled with no change in s3*7a. lt z 7qqvqkxd3separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forwf7p0 idn.g3.xt j9l rcj 1o7uces of F on c 0oxl pfr3u7.tn wdji.7j9g1each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Wg2d 72db+iemrh:r x4- jzi*mh ceb9b0hat 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 forg7deerdm 29mi bibh-cxz h+br:2*4 j0ce is now equal to

  An electron and a pro,lh7zrxnfd2i/e w95f ton 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 placed next to the h5z /ne,2lfd9wixfr7 first electron?

  An electron and a proton are separ qj n;y i.t;wc.jmo5;dated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron ifqcy ;m.j;.jnotdi w;5 a second electron is placed next to the proton?

  An electron and a protr xklm87nz) 8von are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m clo7rxnmkl8) 8vz ser to the proton?

  A point charge of +Q is placed atmg9wgd,b k+: tnn1 ncx,w ja81 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 wcn,19twk+ ,1nmnj8d: ggbxatic 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 trkt09 nvwx z:ocheg0,)iangle. 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 placed at one of the other vero)k ,00tzhv9:ge xwcn tices?

  Which of the following is not a vector gs,1ktf9j) aejkx u91h+1 ljr?

  At twice the distance from a point cmy-2dg1n6xaeu) :c*u jov d:rharge, the strength of the electric field

  Is it possible to havd09 r3ftoc2rd)b6vu-cxpekttu )x 17 e a zero electric field value between a negative and positive charge along the line joining the two charger0cr92c) txb dxv-duf3tu ek6top7 1) s?

  Is it possible to have a zero 5n kgh80 5aq6drlavb 4electric field value between two positive charges along the line joining the two ga br4 ahk0q65 5lvdn8charges?

  Electric field lines nea pmzstd, w8a. ihp5 g82iz(rb.r psitive point charges

  The electric field shown3j0txb7 kgezc pic mo023+ 4pz

  Can electric field lines int5ii qxexe5.0ctik )3 najf,g(ersect in free space?

  A solid block of metal in electrostatic equilibrium is play d(ju)8kyybnq+ 46)m xewm zo166g muced in a uniform electric field. Give a statement concerning the electric fi )u+ wqy(umy6bxz 4d8en m6kg6o)yj1meld in the block's interior.

  If a solid metal sphere and a hollow met hfm zjc/v 9:9;xzw7b.xj yg*aal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and th/;jbax.f9 x c9:h mgvy z*wjz7e surface is

  A cubic block of aluminum rests on a wop7syi4ukt,06lj6b w uoden table in a region where a uniform electric field is directed straight upward. What can be said concerning7blikt4p6juw usy06, the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium ne2hngo0v-yg3 nl,j w-car an electric charge

  A positive point charge is evse g58qez-uwa,6)oh 7nr(dvnclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, thean- es5reg)q7d h6,wvz( ovu8 electric field at a point directly above the hollow sphere has

State three properties of conductors in statbd6jnaj ( la ;zd:;crk*h0c(yic equilibrium.

State Gauss's law.

  The charge carried by one nb h:x -i)63ns( kihkyvsb1xt)7pp-t 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. xd)g9e.k a *zbboye3j3 agi 58How many more protons than elect.3 3db5ez*eokx )8a abgy9gji rons does this piece of plastic have?

  What is the charge ohcjh3* m +zszo*hgxvkj/72;wn 1 kg of protons?

  An atomic nucleus has 0ui:0d ux4gqz a 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, have charge values of 2.0 and -4.0 mCg f)31vyowcs 2, respectively. What is th3 )2gof wvs1yce magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1,nh*6hreui- vyj;m x (.0 N. What is thexiyh-;,rh e( vu mn6*j magnitude of the second charge?

  Two 1.0-C charges have a force between v/eqz02+uiv aexr 3l; them of 1.0 N. How far apart are they?

  The force between a y.l miu4wf,vv 4 cupb4178zpc$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially oodrt5q gyujqv l -7e5x0fc2/8 sfu5v9o6i h1 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, 8j5 vdv gfs/x155 o7ieqr2t fuohu0q o9-lyc6what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The figs/d hpnyg6(( rst charge is at the6h gyps(( n/dg origin, the second 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 th,qt8(:7t q3nygyh8ljz7h ne f e x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the rightlqt zfgnhj :8(ye738, hyntq7 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 follz xxw y:.wvd: q963lzkw/ 7dieowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = ew:x.w/l 9dd: 7vz i6z3kqyxw-1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at t3h7ypu;5eyby ;hcdp4nr5g 7vhe 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 mapyvcr53ud; bn e7p5y ;h 4h7yggnitude 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 nC is oa5+ nu idg qf6ey6s mta(6r.3at (0, 0). What is the magnitude of the net force on the 5.0 nC +na65otu6.g(ie6 md3fyraq scharge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nxmqg8p; k :.2v1 dl5zwpv1jugC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What xqv k:l; jp.gwvm z5dp2u118gis the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at et-z 0cu9ga)1s 2htea the vertices of an equilateral triangle whichs9uc tz t eegh0-)2a1a 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 ag;q a(ycxi zmd4)2oj1nd +4Q, which are separated by 3.0 m. At what point, on a line between thdj)4 ;1yqczaig m(xo 2e 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 and a +9. e9cmb j/tkk*d-y6h*e83ojpt 0-C charge is at x = 4.0 m. Where on the x-axis*8tp39 otk6 eehjbdckm*y -/j can 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 at x = 2a. Wwwwcqu ,*y*bcfx; ;( ahere can a third positive charge +q be placed so that the force o;a wc,cq w(**x ybu;wfn it is zero?

  A copper penny has a mass ou.v a5pu, +idof 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 fii (y7 (dqhsfm)eh68 eh0v3mxx xed proton some distance above it. How far above the electron is t v0e7emxqifm)h(6hs8h (3xyd he proton?

  Two 0.20-g metal spheres are hun6y-opj . yvw;ug from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, an-;wjyu 6 vp.yod 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 cchm;dka el(gh+p*.h1 k2d o*is the magnitude of the electric field at a distance of 1.0 m+k.k dca e;p*c( mo2hdg h1*lh from the nucleus?

  What are the magnitude and direction of the electric field ei -zl2/hi9kf ;j.cow b rh-kb::x8orat a distance of 1.50 m fromo w.zxri h- :hjb9 or8/:-c2lk be;kif a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Whatv jo9riyxt+9 :1/o ua9otwo v2 is the magnitude of the electric field at the location of the test ciu9:9+19w jyatv o trv/2ooo xharge?

  A 5.0-C charge is 10 m from a small test charge. What is the directzrmsk 7 v*x ly/enab;d7*e+4tion of the elect* /e d nalxzsvr+b yke7m*t7;4ric field?

  A 5.0-C charge is 10 m from a small test charge. What is the mas6ri(ue s wy1wu i7bdxg5w; 3.gnitude of the force experienced by a 1.0 nC charge placed at the locatiosr( useg1ww;6ixybu d. i w735n of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dimxq j*-o*r,za-bbn3g stance of 4.0 m. What is the electric field at a point midway between the tw*b-,xgzbrnj 3*aoq- m o charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 -+6 kdcnsr/6k.detrz mC charged- rn. zc6sr+k6 dket/ is placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed s v0hfpm(s)s*at the 0 cm mark of a meter stick and a -4.0 mC charge iss) m(sshf0v*p placed 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 eav-ljs.lfr-q; (t8 z,hmq r+e placed at x = 0 and x = 0.20 m. What is the magnht-+j refl,m q vqar.-z; sl(8itude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thre)uo-be1()kn j fo8ka ce corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. 1 8o)k)jo u fenk-bca( 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 th r gxcdh (m(mwz6*1 2v:9lcibve 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 square's cx g 9ldrhv1:b z2m*im6(cvw (center?

  A force of 10 N acts on a charge of 5.0 mkolc9deu*9 hhq5sv 0ra ow 609C when it is placed in a uniform electric field. What is the magnitude of this eu09*69le hoc9a h 0w5orqvdks lectric field?

  A particle with a charge ofx; 4d m,8h qfjkrh qico69c x1l:l:)py 4.0 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 600f3whbuxso fi+*ka z is37ae0i.,0sb90 N/C pointing downward. 0a,ixs+f 9.aish7f*bz uw3b 3oise0kWhat charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge oz*, r- opk,nla( ha;u*cpbhj(f -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and directionhl( raz*p,h ap ,-c( *;jubonk of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is thbsisjt- -d4* 5i:yzmix-l5nj3 lax)pe magnitude of the electric field 5.0 cm4 l z5 npmxs:-iij xsilb-a*)jy-35dt from the sphere's surface?

  A metal sphere of radius 2.0 cm cl1*t+c8 cujsx kr)a/hzx-9ny arries a charge of 3.0 mC. What is the electric field 6.0 cm from the center o8+ x/ay9 1xjluck) rs*ch-tz nf the sphere?