State the law of conservation of electrig/3b,ln rzi kj7uj o2 )e yb,n6cs,j4fc charge.

  Is it possible for two negative char+ b 4vi4iwvrlci k8z.1ges to attract each other?

  Is it possible for a positive and a negative charge to attract eacjzjc:.9grotzj, ln.8b p+z *hh other?

  A glass rod is rubbed with a piece of silk. v uhxhc-1wzgfp;9c 3xzp/94 k During the process the glass rod acquires a positive charge and the9;hzpfxzgwu3k1xv -4 / 9pcch silk

  A proton carries a

  The model of the atomae;p j6tqum-1t /e:nx shows a

  A neutral atom alwaysb (fd0akt53a0 fb+ff0lqv as; has

  An atom has more electrons than protons. Thc*2ndjpx7, rg+3n6scra1hf)kh eq e 0 e atom is

  Materials in which the electrons are bound very tightly to the nuclei *1c/ vqc tvd3o y++ck(n-rw /nhks 4xuare referred to as/ - qvxr/(tnckwovk*c1 4+ch3 dyns +u

  Materials in which the electrons are bound very loosely to iy *kba y4xfwhy)+i6nn )*wi,the nuclei and can move about freely f+,6i b)ixyny* *w)y aknh iw4within the material are referred to as

  A negatively charged rod is brought h9,h4 cv0zmgk near one end of an uncharged metal bar. The end of the metal bar farthest from the chargedhc90 4k,vh mzg rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They ars )ou*4bux 8xh;z9jipe placed near each other on an insulated table. Sphere B jop ) 9zxxh;*bu s4iu8is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscok,.sj0k i vcsmx,j2t:zy ;k4jpe positively?

  An originally neutral electroscope is briefly touched with a 43 tiz.pcfcg ,:uzad*positively charged glass rod. The electroscg3 tfidazc,*z.p u:4cope

  An originally neutral electroscope is grounded briefly while a positivasi+7( r nwmfr; 8sv,mqza,u ,h /d+coely charged glass rod is oarmh/7;(,fu,qwvd+mc,r zn ssa 8+iheld near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separ4i v;hc jsgr:kf6k1.eate. Then a nrk.v:fc6g i;k4s eh1jegative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed onw51/-o 2ok lqd4z/zwyxbu,i j 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 the5bw4jwlzxky/ d/21qz , -ouoi 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 constadne 9j)qqa ,oowj7e+.g c:l b4nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firstb6egm 6d5.mei charge is larger in magnitude5e6egbi dm 6m. than the second charge.

  Sphere A carries a neo ,d b0t(tag)6cprs :mt charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement bedc6:gta,tsbm p) r0o(st describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. 8,yq, ait k l.b(jmfx6xy +f4qIf the charges on both objects are doubled k qyb , jlxty+(mf48. a,x6qfiwith no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attra(b *m)81ixppjn;0k z* s fd-amqd of*4ib-yzective forces of F *0j mpb zs ;p*)kdf8iy-abd-*xniq4 1f(oezm on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each(nb;tc: f jmv2 g4mtr4 other with a force F. What happens to the force between themm bng ;vj 4fcm(tt24:r 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. What happens to4s84fnm3+0fhs2lyf e/mq1ls la t1nd the magnitude of the force on the proton if a second electron is placed next to ts/ fh1 f84ll41y maq2 nf+0tdm3les snhe first electron?

  An electron and a proton are separated by a distanceb8x30mw1 xdkl of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is pldl 3xmbw0 x8k1aced next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. h:t73mboro ujz wl94gq3ap+3 What happens to the size of the force on tt:+ zouj7r34hmowla3bg3qp 9he proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When37p d4x:hfhb141 o5lvxlhlmc 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 ocm17:hdvhp4 45l lx3 h xfbl1magnitude of the net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is plzdk id :;fbh,4aced at the centroid of an equilateral triangle. When a second charge of +Q i4hzfdd: ; ,ibks 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 isbmccd ( pza:. n;redtbk 962r0 not a vector?

  At twice the distance from a point ch i10cdh**h-(aqxc 5cn up iizx;xiu4)c*pdy1 arge, the strength of the electric field

  Is it possible to have a zero electric field value between a negativ-*2sws e3xq6yiip8 jj e and positive charge along the line joining tesipjj8 2s3iq6*yxw - he two charges?

  Is it possible to have a zero els :)qy3tzu az6j+f(;xqgqr c:ectric field value between two positive charges along the line joining the twotqfq+qa(r;zz3)gu :c6 xy: s j charges?

  Electric field lines near psitive pointkvxnpz58 4 z.qx)/f2b bau gd5 charges

  The electric field shown(ak j*6gb+jcs

  Can electric field lines intersect in freeec1 m suoe0) 4tfv;:se space?

  A solid block of metal in electrostatic equiliip6tuetjsoa +8 8 ,i;mde25i hbrium is placed in a uniform electric field. Give a statemts28ei, mia 5e6;opihjdu +t8ent concerning the electric field in the block's interior.

  If a solid metal sphere and a h 7 j uy2cc 6ygk)pvkqw,cf:0:rollow metal sphere of equal diameters are each given the same charge, the electric fieldu0,c :yrkc v67kf pg)wcjy:2q (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uni h f4b;-g) uxsfl10uvvform electric field is directed straight upward. What can be said concerningvu f )10gbhvlxf4;us - the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near pi3mo-3 oo:b ran electric charge

  A positive point charge is encffmr k a9 w,wt-9mo+,wlosed in a hollow metallic sphere that is grounded.mff9rm,w - ,k o+t9waw As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibpm4zz:hy4z50dbsm cq n h(p4; rium.

State Gauss's law.

  The charge carried by on6 l9 x90 cer:bbl7uugk;: pv mz(-cpfye 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 wd*l5fmok .hag-c x-;e/ je2l a net charge of +2.00 mC. How many more protons than electrons does this piece of lhc-aof/w -x gd2j*e .e5kl;m plastic have?

  What is the charge onbpceb*/au (6djj yfrr.23 3smav85 hz 1 kg of protons?

  An atomic nucleus has a ch :kv4fgxo+k4 b 5h5c:a g)9iixx oj3svarge 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 valub v0zwy)r,s l 6;ir(n lk*0qfnes of 2.0 and -4.0 mC, respebnfizqsyn(l)w 006; k rl*rv, ctively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m fc2dqc 6 *w jf5ofya03prom a second charge, and the force between them is 1.0 N. Wha2d36o0f pf* wcj5c yqat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart x (8is:i;mbh.dm2e taare they?

  The force between a 5 l8uy2 sjuxccom52d5 e8ux 5o5u2fbq$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienn gi9 (,*oczlzz+ lk*d*qb/vgce a 1.0-N force. If they are moved to a new separatio/(vl*+ikg*cz9gqdzo ,nbz * l n of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.dd, h+ y4zvjdd:ko 8. nw.gv0h0 mC are placed 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 th+kzdwg .ydhh0, 4d: .nvvjd8 oe magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on 6etm 3l gy,vdk(;j ax;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. What are the magnitude and direction of the elecx ;egald kvy(m j;63,ttrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 216 c,8ar(6zzgyhct he.00 mC at x = 1.00 m; Q2 = 3.00 mC at x ey6,caghhr(1z 6czt 8= 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 +3dbksxm6 w-pplaced 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 of the force that acts on the center charge if a third charge of -Q is placed at the lower-lmpb k 3wdx+6-seft corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = ds 2d0ii a/)7u t lqqnw63ml-r-1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the 6i nrtill7)3 a2/dqw0s- u qdmnet 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 =f)8l az bydur )kyxr 5-v6t)a7 5.0 nC is at (0, 0). What is the direction of )f xlvyr t8)7badzrau 6k-y5)the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilad)u: jgq/9td7 d+ eteuteral triangle which measures 30 cm on a side. What is the magnitujut/: d u9q)7e+tegddde of the electrostatic force which acts on any one of the charges?

  Consider point chargeswr +aepyz(j-) of +Q and +4Q, which are separated by 3.0 m. At what point, on a line between theea j(-pwy+ zr) 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 +9.0-C charge is at x = /rfdt-ar,fnm(a. -b/ zp s3qn4.0 m. Where on the x-axis can a third chara,r3/ f fm-st.(p da/qz-nrn bge 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. Wher9-s7aj/qpvw si.-jv k e can ap7i.-aq9 vsj-j/vwsk third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tge c3pdxs: x.4otal 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 )8gn ap-w9 hffforce of gravity by the attraction of a fixed pa- whf89ng)fproton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a commo,vs5gt1* j-j oai(isfn point by nonconducting threads which are 30 cm long.s1jgosja5(i v* i ,ft- Both are given 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 +40e. What is the magnitude of the electriv -:wenl5 xs/x3uub:ec field at a distance of 1.0 m from the nuclenu-x :ev 5wlbuse:3x /us?

  What are the magnitude and direction of the electric field at a dzwqk- -b8fe)kya) ko +istance of 1.50 m from a 50.0-nC charg kwz+bq)ef--8)kokaye?

  A 5.0-C charge is 10 m from r1r gs+y amr64 ksw8e;a small test charge. What is the magnitude of the electric field at the locatke8;w yag +sm1rr6 4rsion of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dirb g5c.g.c-fy4xjdkn x53 g6qnection of the electric fieldk x-jb dn5xqy gcn .f4gcg56.3?

  A 5.0-C charge is 10 m from a small test charge. What is the ma.wi: mmu q:8jvgnitude of the force experienced by a 1.0 nC cj.w vq::8im muharge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance2xko*: 9o wprj of *rox 2w9 :kpjo4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mar7w*4cfx;gmm*8efu rjn :jm4xc ;oc8k7 xmi1fk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field a1;fixgcjxemc8 r 7fuc:;wm*84o4 j* nkmfmx 7t the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter2q/s:aomfq7 g k/z/)xmf-x ip stick and a -4.0 mC charge is placed at the 50 cm mark. At whax)f fsa//q7/zo mmk-ixgpq :2t point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placedy0r,ty pswxp:8 kta/- at x = 0 and x = 0.20 m. What is k/arpp-:t,yy swt8 x0the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corn4l*lrus+ j(6h e sgh9:w3gsue ers of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electriceu*+l(g 9s4s6gr3eljwh:shu field at the center of the square.

  Consider a square which is 1.0 m on a side. C; 7 7ke6clutqgharges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at6 ;g7u eklqt7c (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 io :jqs jnzi:x)yqdt)j 5n ,n),n a uniform electric field. )j )qsdnq,:5t )x: ,jon zijynWhat is the magnitude of this electric field?

  A particle with a charge o6 u/9of:tls 3s.m+0gfv cdokvbn 7k- nf 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 6000 N/ 3b .pvyp*1ficC pointing downward. What charge must be placed on t 13pibvyc.*p fhe ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is p4tfkj0 ,f )t2j82eb5rcv f chllaced inside a uniform electric field, an4c2,j kr)ttefhlf 8jc 02b 5vfd is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of ll5ty(.ecqi ob p:sp -,5.cj y+2.0 mC. What is the magnitude of the elbjl5. , lte(pc: ic -yyos5q.pectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0di5 hj6:c ney+m6bx-/y g pv*m mC. What is the electric field 6.0 cm from the center of h6x6ny+mybm *:picv g/ -5ed jthe sphere?