State the law of conservl9 qt sv9jr 1o+pu:o(ration of electric charge.

  Is it possible for two negati/eauy9 oa ,e/ive charges to attract each other?

  Is it possible for a;/1g9iqslmw ytw067 kqm gp*l positive and a negative charge to attract each other?

  A glass rod is rubbed with a p a(0zw-syab:w iece of silk. During the process the glass rod acquires a positive charge and the yz0wa s(b:-wa silk

  A proton carries a

  The model of the atom shows9.j:f)izmpy-fhx3c l a

  A neutral atom always5rdk fc2xjb-/ dg -4ek4ay5 sa has

  An atom has more electrons than protons. The atok . a *a0qn.28x(batmrzj6rxvm is

  Materials in which the electrons are bound n8bnxd 4 ard7:l jq.18d-awg hvery tightly to the nuclei are referred to:.d8w14dld q7xb-h agn 8a njr as

  Materials in which the electrons are bound vdm/ qmkt62z2c c/ko51wq y9qhery loosely to the nuclei and can mov52kmok92t/qw c1h/zq dym6qc e about freely within the material are referred to as

  A negatively charged rod is brought near one end of an unchargf/ (04)pszp/dmm tiyo; oi8mie5da3ued metal bar. The end of thm iz(ei5odfyst8)md;im/ ppuo/ 0 3a 4e metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, aomj i) kb+u/d(-nq1fym x.qd)nd sphere B is neutral. They are placed near each other on an inq) b1x+kijq .-duf/n d)mmoy(sulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscopvdzdwr /1 1v+w2cv7 jqx;rpp 7e positively?

  An originally neutral electroscope is briefly touched with a -1 zu4hoglvw 4j/guxlp( p6ig789r xd positively charged glass rod. The electroscopedw/1j9-rzp8lg h46xgix 7 ( g4oulpuv

  An originally neutral electroscope is grounded briefly whil1 so/te7ilasm0xv3(y e a positively charged glass rod is held near it. After the glass ros (my0its17ev3 o x/lad is removed, the electroscope

  A positive object touches a neutral electroscope, a;dlf ., rddk ). ;3cbgifju2pund the leaves separate. Then a negative obdudk dfg 3.. uj);i2f,cp;b lrject is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. l6h8s 1nqxuz8 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 z 8ln 6xusq1h8first 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 Coulomb consta0. ikqhgg3nrw3a / k5 udc6h9tnt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger iki.o pp .8 .kuo2 f;d4jz:ujoq+0yj man magnitude 0yod8. i ;ko4kua:fqj 2juzo..+j pmpthan the second charge.

  Sphere A carries a net charge and sphere B is neutral.x 4dz2ze0*ujta 1ot9x They are placed near each other on an insulated table. Wh zz *t0j1dxt29xe4uaoich statement best describes the electrostatic force between them?

  Two charged objects attract each 6zse:uu7big. other with a certain force. If the charges on boi6u zs:eb.g7uth objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert m*pqe-je 3d2sm ltxf-0t htr) /utual attractive forces of F ohj3m-r)xe*0l2 p-/stt qtdfe n each 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. Wp6rfp.z xqfpfg9k foc:*v9 4 w1a wa/8hat happens to the force between them9 wk:.4fc vfrzq a f*fp 1oa/9px8wg6p 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*- cn:,h2x9l ve--unvfwk gsh of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to wgs,-ncnvlhv -* f9xk -heu2:the first electron?

  An electron and a proton are sepxcbzt(8 q rcae90p r9,arated 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 protr9b8xt0z pcae9cq r,(on?

  An electron and a proton awz(q8i9t7 ar(e 7o)*gyax wuwre separated by a distance of 1.0 m. What happens to the size of the force on the proton iw8w( rzaw7e *9a)ogu(xt qy7if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squarefe9r:ehf1s0be6 w * bc. When a second point charge of -Q is placed at eb9hsc60e b*ef: f1r wone 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 charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle.ly jyucda3 ;m,3qu1 5d 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 oc ml yju15u3ay,q; dd3ther vertices?

  Which of the following is:zc:m;v ep bztp8d)) w;;olhs not a vector?

  At twice the distance from a point charge, the strength of the electric fyse*i2 glfl1 j c*n10vield

  Is it possible to have a zero electric field value between a negativli5)y 2l iose, uk6fq.e and positive charge alon5i62oui k, esyf.lql )g the line joining the two charges?

  Is it possible to have a zero electric field value betwe: y3za)+t ;gwib 0hwtnen two positive charges along the line joining the two chant ibw +)w :zgta0;hy3rges?

  Electric field lines near psitive point ca,/:ryfx8iv :mrfcbum z :75v harges

  The electric field sns1i:n:2 imcd+d-1p3m ljm a .xkjlv *hown

  Can electric field lines intersect in free space?2r6dx w kb(z1 2jf +fd .2u.mzsichol;

  A solid block of metal in electrostatic equilibrium is ,n ,+ mjv;j)fnosldz.pq l.5u a*nl )qh-h4foplaced in a uniform electric fiel-l,hs; .5vjul z ml )dfqh4*a+ nooqj),p.nfnd. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere(6yi5pe) 6zp st.m szm of equal diameters are each given the same charge, the electric field (E) midway between ( simezp) zs.y6p65mtthe center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a ud5c3c mg a8jo:niform electric fieldm5g: jo83cca d is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chfk8mx 9nfk.n;h9ub.earge

  A positive point charge is enclosed in a hollow metallic sphere that is grqhl1 pszk 7wy4eoq-0udu; 9v3wmcp 83ounded. As compared to the case without the hollow sp ;8wshp pumkdqc 3vywlq-o1ue z9 7034here, the electric field at a point directly above the hollow sphere has

State three properties of o;k*o:tp )zkn2-9d sn2slojm conductors in static equilibrium.

State Gauss's law.

  The charge carried byou d3: p phf7z dlb2b3z/,9bzy 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 a net charge of +2.00 mC. How x gzj11g:obr7c vtt2d h+3( vzmany more protons than electrons does this piece of plastic hav 7r2gzv11zx: h3t+ dg(vbot jce?

  What is the charge on 1 kg of protonsp ps 7 i1vk3df:vq(mg:6r xh*y?

  An atomic nucleus has a charzh-6jjov.8 s +8(nhofelyl . j0rjg-yge 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 s)eedkqq(0z w :vphra)k 7iv 8mn) yh44e6lt) mC, respectively. What is the magnitude of the electric force betwek)qwe6vhar0 qym:hie4l4 t8n z )p(v) e7s)kden them?

  A 1.0-C charge is 15 m from a second charge, and the force between them iswfxrd92d*zyluv ea1q/l)+fu 9by)+ o 1.0 N. Whatqy2lv9+)fw bo)rl 9x *+zu dyu1adf/e is the magnitude of the second charge?

  Two 1.0-C charges have a force between them ej(,l1ppun hi p3 qr40of 1.0 N. How far apart are they?

  The force between a u nml:3: tyct72bc+zx $30 \; mC$ 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.d9b: nm ky9h(c0-N force. If they are moved to a new separation of 8.0 cm, what is the electric fodk:(h9y nbm c9rce between them?

  Three identical point charges of 2.0 mC are placegjxt4;8kprrxz3:vr tm q 9r1xt 4rn 4eqg,*s 9d on the x-axis. The first charge is at the 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 t rttzx3qr1g4remsr9 q 98tjg kvpr:x4;x4*, n he electrostatic force which acts on the charge at the origin?

  Three point charges are placed o zqtae6tey ;t1( :5e.z1ui2 ey6zsoml n the x-axis. A charge of +2.0 mC is placed at the ori5(1e.qz ee ;a:t6sym6 tlyzu2ioe z 1tgin, -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 the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at xl tr7)7kbcm7iows: e 5 = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the forseb) tw7m:kl75i rco7ce on the 3.00-mC charge?

  A point charge of +Q is placed at the center gfy;u,(vx 3f77xnz;sy gth+ aof 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 of the force that acts on the center charge if a third charge of -Q is+7y3nz,ahg;f(x7 yv x;gfu ts placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at upwk6ek2. 5p;j n3coe(0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the no6p;w 5c.e2 kepuk3j5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2:+rbk2g w*kze = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the g :2k+ k*zebrw5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilat87acm* *r7 5bsdm z xx+1pkdiqeral triangle which measures 30 cm on a side. What is the magnitude of the electrost1 q7k* s 8z7+b5ddcamipxx*m ratic force which acts on any one of the charges?

  Consider point charges of :fw2qkeom y k1a+1j, z2:mpca+Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would21,pyek ka21a:mcjmz+f :qw o 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 +us:jgg 084 cig9.0-C charge is at x = 4.0 m. Where on the x-80u:g4g i cgsjaxis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and chargeud5uzcv h*deqh)h) gyj1z k;v5 rm743 -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it kghuh)531j4mc dvred*z )z;y5q v7 huis zero?

  A copper penny has a mass of 3.0 g. Ac,ov-x3fo y1x 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 thekfh q67;urc(df; .sll force of gravity by the attraction of a fixed proton sof d;hkl6r s(f;q7 lcu.me distance above it. How far above the electron is the proton?

  Two 0.20-g metal sphere6vt dr8bd.4r0t9e cck s 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 anglet d9bc trcd8r.v04k e6 between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is tijjl+,7u8kzonpke x36 ; t do5he magnitude of the electric field at a distance of 1.0 m fr7ej+ ijlo;p5kktu,o zxdn 8 63om the nucleus?

  What are the magnitude and direction of the electric field at a distance o;n;*gkne 6b1d t u2((9-f-nxaa/jmsukypd sof 1.50 m from a 50.0e ddoy/n;1 s-2uak9 xatpm(-;fs n6 *bkugn(j-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What isjaq,//yya f9w:k fmp, the magnitude of the el jy 9/kpw,,fa/f: amqyectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is amm gk9u2ho/+the direction of the electricgomu+am h 2/9k field?

  A 5.0-C charge is 10 m from q/ 6*/g8fds *utcvbdpa small test charge. What is the magnitude of the force ev 8 **dgcusdt/pqbf/6xperienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a o,,ut z hjox5z,t ci*8distance of 4.0 m. What is the electric field at a point midwayc5,,,ztjozh uxt* i8o between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick f/kt ktoxbr +3u45gamob*y 33and a -4.0 mC charge is placed at the 50 cm mark. What is uobr 3*+5yokgt43 mabfxkt 3/the electric field at the 30 cm mark?

  A 5.0-mC charge is plac7k 2e k3m1;m ni4k(udnv wp,dred at the 0 cm mark 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 char3n2,v d1m;i ewu7(drknk mpk4ges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.16 7qq2zwpljgx*w ht ,20 m. What is the magnitude of the electric field at the point midwag6,w7txl2 pzq w 1*jhqy between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The 5a3:i :z 5ot b3fiq ,mwz3k0icznfii5last corner is occupied by a -3.05twc:iz: m5izaofqii50 i,nkz 3 33fb mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges ar1 h2pacc0m j7ojon58 ue placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); n8cm2hajpouo0 7jc1 5 +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 uniform ux jn1 v8qijm2a: );64pdabnyelectric field. What is the magnitude of this elxjq4ypj:m)2na8 nb d 6u1aiv;ectric field?

  A particle with a charge of 4.0 mC has a t7ehiqmvl7 rd/m18 u tiw:6 .kmass 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/C qbf1t7(vw 3abs, k9 cmpointing downward. fvc1 bt(kb 7 3swaq9,mWhat charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.7bcc.:bn ay v4150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitudc 4 v:cbnb7a.ye and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. Wa ) p)umguk7;ci8 mp+m+g.e erhat is the magnitude of the electric field 5.0 cm from the sphere's su8).pamg+r m 7ci+mp) uugk; eerface?

  A metal sphere of radiujqnn4 y-2+uud3 hqk)ks 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the 2uk3n)u 4kdq-y+hq jnsphere?