State the law of conserhf0ntc r6z55x.m hof7vation of electric charge.

  Is it possible for two negative charges to attraca.lf.b6h2xt lt each other?

  Is it possible for a positive and a negative charge to attract (8)zgt1c+6 chh-he amdo3vzzeach other?

  A glass rod is rubbed with a piece of silk. During 80x ;7r8cyzif ff 2keaty2j8kthe process the glass rod acquires a positive charge and the sili8f;ex r82f zyy7 8kcakt0f2 jk

  A proton carries a

  The model of the atom shon k7ud0od7*lck nz) d6ws a

  A neutral atom always hvsa g3* ;lerxp)b9;st as

  An atom has more electrons than protons. T 1 job7 o2v-mud+fb pr;gm.q 3ouz9a,ohe atom is

  Materials in which the electropdpxg qg kvau(31* 9p ;pn0bv7ns are bound very tightly to the nuclei are referred tap pbqpp n79 gd;(*g3v1x0vuko as

  Materials in which the electrons are bound very loosely to the nucl+kyp2f)f-skvy)2h (hu5 opa gk zs8,lei and can move about freely within the material h8s 2o2hg+k s)ul,z(5) avfyy-kfpkpare referred to as

  A negatively charged rod is brought near one egg77wr x7n z1sen+ m-69bo k5t:iwuqind of an uncharged metal bar. The end of the metal bar farthest f6tqzbo1m+u 79:5rwwk 77i ingxnseg-rom the charged rod will be charged

  Sphere A carries a net positive charge, and.u;uk g0pv m5k.- edjv sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. u udgje pvkv0k5.. m;- Which statement is correct?

  How can a negatively charged rod charge an elmlj 0 ukx: j m0txii:/ds/f-0jectroscope positively?

  An originally neutral electroscope is yf kbee8 5bfu -8r1voq1*tg aiq0pa) )briefly touched with a positively charged glass rod. Theq- u8 )qvgfe)8o 0ib*15aaptfrkyb1 e electroscope

  An originally neutral electroscope is grounded bv kc/p8.i ew 6aprra*,riefly while a positively charged glass rod is held near it. After the glass rod v.a*6e /pik crw,8prais removed, the electroscope

  A positive object touches3jou.+66( lqk : pktmvnepw) a a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happem+)q 3 :kntpkpo lj(.w6u6va ens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral pjqos weik2r- d)p..0metallic ball rolls straight toward the object, but stops before it touches idkq2j.0ip wer) .pos -t. 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 charge on each ball?

  Charge is

  What are the units of the Coulohx7nj4 aa-w-vmb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is laoaq6nec6 pr0px e3.: zrger in magnituden c3a60 6zq.oeerxpp : than the second charge.

  Sphere A carries a net cha*fk:2 00l mwvu((ph +aqloc oorge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best desc0v qc:lp h02am*kl(o(fwo+uo ribes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges o 7gqu9 )yy1ove:o c-uxn both objects are doubled with no change in separation, the force betwxy qeg:o1y7 vou u9-c)een them

  Two charges are separated by a distanceg7vj 24(eq qe7ujz7ym3ce d /g d and exert mutual attractive forces of F on each (my/qe 77dzjqg24 7v3je cgeuother. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each o:cq3p 1ga lf+vther with a force F. What happens to the force betwq f+ pgacvl1:3een 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 equal to

  An electron and a proton are separated by a distance of 1.0 m. W0u+u s3tyw,hfk60 a nqhat happens to the magnitude of the force on the proton if a second electron is placed next to the first electron?0q 3tnkuwh+suy6f,a 0

  An electron and a proton are h r(ec zm3bq5e6+jtiayqi xp-1110tkseparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is pb( 5yi1 h+pekcq01 a3xe-mjtzi 61 qtrlaced next to the proton?

  An electron and a proton art6of,q ioa,5m e separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electrono ,ta5o6mqi, f is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a secol pz *k(( c4oa-nao*nand 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 positive charpa o(lon 4(ca**n- azkge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle. 4h)zux ko5 (bt 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 tt) u4 (zo5xbkhhe other vertices?

  Which of the following is n0.tox8-wgjtd/ * ptxbot a vector?

  At twice the distance from a 5i ijk7gap y.:point charge, the strength of the electric field

  Is it possible to havgg2ctbzo 30*ke a zero electric field value between a negative and positive charge along the line joining thb0z tog*3kc2g e two charges?

  Is it possible to have e9 qn 4r w0/fxgu,*jbma zero electric field value between two positive charges along the line joining theujxm*nfw gq/ 4b 9r,0e two charges?

  Electric field linesew0gy5, h1vwatz ( zahzk(*(x near psitive point charges

  The electric field sp 3oq1cg9m6, xx eau-phown

  Can electric field lines xvz+ai(s 4v /(u4 slrn, esq;mintersect in free space?

  A solid block of metal in 2 z4xlg m-+hfyelectrostatic equilibrium is placed in a uniform electric field. Give a statement concerninhg-ly 24xzfm+g the electric field in the block's interior.

  If a solid metal sphere and a hollex f *bmr39u7ff i(,giow metal sphere of equal diameters are each given the same charge,,m b( fe9i7rfxu3i*fg the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a jl1i2xvq;z, e+zf11pq oyyq5 uniform electric field is directed straight upward. zzo e11qy1;5 p,iqxf+j yvl q2 What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an elecma,7 d8 d9xl gky(0rontric charge

  A positive point charge is ejj* +(jjv3is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollojsj*+ i3vj( ejw sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriuj996mri glwwp/u 6)e lm.

State Gauss's law.

  The charge carried by o h/1 lthvajw y;,ysc-fi(k py vnh l--5-wy)d,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. Hi(/rldhhbm7mh y )u:q .0 /yujow many more protons than electrons .uy /i :byj () 7u0qrdhmhmhl/does this piece of plastic have?

  What is the charge on 1 kg of pzzutw84 se/ h *)b)onsrotons?

  An atomic nucleus has a charge of6hgx 71d chf+ha5cuut: q 8a*x +lmw:p $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separatedx-lud * +7,eaq;*e gmxwsor (qj0f y-s by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of th xslog+ *-j(umq,sy;7 wdefe*aq -x0re electric force between them?

  A 1.0-C charge is 15 m from a second charge, anh-dc ,oyo jtk*3 cx)1bd the force between them is 1.0 N. What ib-od3hj*cy ,ckxt )1os the magnitude of the second charge?

  Two 1.0-C charges have a force between them o -ep/z .,ypjqcf 1.0 N. How far apart are they?

  The force between a uy( )s-u1s bnm$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallb: q;rt+-z on*ky0 dbmy 2.0 cm apart, experience a 1.0-N force. If they are moved ;zb k0mr-nyo: bd +qt*to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0p fo,6h8d)uph mC are placed on the x-axis. The first charge is at uo d, h)p6h8fpthe 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 ;y p-u dp nfb4z,y pi50rft;xnhu/9t6 on the x-axis. 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. 5ty4r-p/tf bpf u 6pzdi;n;h, 9yu0nx 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:h6nk)c2wfl o m;g 66hhtf8l0 x Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x =n0 6hh t6lc6f;x l2mkogwh8 f) -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 center of a squa2wb1w/jwv )hyk r6gn+re, 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 of the force that acts on the center charge if a third charge of -Q is placed at t b y)w62ww+1kh/ nvjgrhe 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 /:d8ia nl yq rn7mk9a.at (0, 0). What is the magnitude o7r9:d8kn myaqlna/ i.f 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 at- s:r,:refrpd1ccp :a (0, 0). What is the direction of the net force on thpc :c 1,::rrpadfe-r se 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the f 1wzk4b4dinrm mvn.4;t7b y1 vertices of an equilateral triangle which measures 30 cm on a side. What is tnribzdb.4fym7k 4tvn114m;w he 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 kyl44 bwp yi4n2/, rb cplh),rm. At what point, on a line between thebyh4yrpb iw4l), n k,c2/r4 lp 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. e2pytyhxr i4l. ..hk60-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net f y r2.ip kelxhy4t..6horce on it is zero?

  Charge +2q is placed at the origs lmsf e./cntg66 d+p ac85lo6in and charge -q is placed at x = 2a. Where can a third positive charge +q blatc8mcdpon66+g 6/ e. 5slfs e placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A t(6tfdth- yb5+oyp3 efotal 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 attractionfu (p2u sbi/o; of a fixed proton some distance above it. How far above the electron is the protu( u/p bf;2sioon?

  Two 0.20-g metal spheres are hungfwktsybz ,r-fd (:mpgl(s 706 from a common point by nonconducting threads which are 30 cm long. Both are wdms(0p6 l7, rs :yffzk(-tbggiven 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 +40eigi)+m r5jlz*. What is the magnitude of the electric field at a distance of 1.0g*lj+)m5r zii m from the nucleus?

  What are the magnitude and direction of the electric field at a distance2jvz qcg3z)h(j,--jo xu ; ruk of 1.50 m fj k3hz-v;gjc,-z uu o(rqj)x2rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a ss)))w:y qrq4km eh f+bmall test charge. What is the magnitude of the electric field at the location of the test ch+)yq )bm:kwsqre) h 4farge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction ofqr8e(eno+ fj0jf 9lt 8 the electric fienfejef l09o8(j 8q+rt ld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude w;*pm q/sjk j )v3ansu6zz ;e6of the force experienced by a 1.0 nC chargjwskea)/snu;* zj v6q 6p3mz; e placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by 6m62ivkzf9qw+m y+x. eft.2 c0pwa ng a distance of 4.0 m..f vnt+zqm 2+2i x9fw6epk y.mg06wc a What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 c 01k l 0z sivkv;)k5ye0,npehdm mark of a meter stick and a -4.0 mC charge ivsp0kzk n0yl1;0evh5e d,k) is placed at the 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 meter stick anp., xvymoshbus8o. e; 4i*xk1 d a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges ise8smo v y.phbs x14*oi.u;,xk the electric field zero?

  Two point charges of +3.0 mC and -7.0 m h2:gwfb f/n2bC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electrigw :2 b2ffnb/hc field at the point midway between them?

  Three 3.0 mC charges are at the three corners (6igl9gnvl r6/aph)rof a square of side 0.50 m. The last corner is occu6lhvrpg(gl9n)/ i a6 rpied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square whichrqb3xwh :wh;) is 1.0 m on a side. Charges are placed at the corners of t w3h);b:wxqhrhe 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 center?

  A force of 10 N acts on a charge o8 8hchwy1wo m1(/aqqa;ed- vpf 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric v1cqh p ;1wha a we(m8/-yod8qfield?

  A particle with a charge of 4.0 mC vzqvl/ d7,b))pwzozn8-f ;lfhas 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 ow kq;ic cdkg(y9w+w u4ox3j83f 6000 N/C pointinx4 ; w3kyiw(3gc kjdc9ou8wq+g downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charg( zpdo +jacq7 t8d,zy*e of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. jdzapz,cy *td 8+( q7oWhat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mCz zz08lva ziijqv)d ,ci1(d3). What is the magnitude of the 3 zji 0vi q8zva )(cdzli)zd,1electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wl 0aqp4 7xvm+1f 6 wg88prr:uceum:wehat is the electric field 6.0 ua6rxplewvp7we1 8 g q8m:+0:m urc 4fcm from the center of the sphere?