State the law of conservation of electk m+4o9wf5 pcjric charge.

  Is it possible for two negative pmg5nn4 wxn+g hkr,:o 3 5w ;tp3;asqicharges to attract each other?

  Is it possible for a positive andrpey7te0)vyyjlxi7n-i o3;3 j9k 2p f a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. l88rf)s69luss;ijlg During the process the glass rod acquires a positive chargig 8lss6r)f;l8su 9l je and the silk

  A proton carries a

  The model of the atom0f ljsjc1r8ewn2 u(ui6: 12fiysgf1 b shows a

  A neutral atom always o(k xwvi p,.0zhas

  An atom has more electrons than protonsrzhh+7u 9u .1pd3 myve. The atom is

  Materials in which the electrons areoq ou;1pdz8m2pre 24g bound very tightly to the nuclei are referred to ase d8o2r2qgm 4 ppouz1;

  Materials in which the electrons are bound very loosely to the nuclei and can l- w0 ha *y9ww44ftshamove about freely within the materialy44wslt0waw 9ah *f-h are referred to as

  A negatively charged rod is brought near onepzc 91 s. irovvxex/1- end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be charg1is-/oxe .1vp9zxvcr ed

  Sphere A carries a net positive charge, and sphere B is neutral. They are a(9eqlm:*pzc)+iu skplaced near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is corrz a e ulp(s+)cik*mq:9ect?

  How can a negatively charged rodp8to mm1, cun8 charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively u67+e,yq 8jsy ;ntxq vcharged glass rod. The +7e8n tsuy;x6,qqyvj electroscope

  An originally neutral electroscope is grounded briefly while a pos/ dn 6yz 8ue7am/ihqusx))k7t)zcns 1itively charged glass rod is held near it. 7dtun em y ais6z)x1))s 7ckqnzu/h8 / After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, awj0q l 39bbm)vy(d dd6nd the leaves separate. Then a negative object is brought near the electroscope, but does not )yw0 6qv 3dm9 lbbj(ddtouch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated g; xgdl.a+a/ ;qgg, (f*ibhfxtable. 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 touch the negative object. What is the final c l;d q(,/gf.agabfhgx *gx+ i;harge on each ball?

  Charge is

  What are the units of the Coulomb cj 3um3k8 jn(ovm.ui3lonstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Tht9.a d cy(l0cje first charge is larger in magnitude than the second char(9.adc0 ctyjlge.

  Sphere A carries a net charge and sphtg ,gw88/ek niq4 bn*;vv rho(ere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between them4i hnv(8g, 8/bovwgq n *terk;?

  Two charged objects attract each other with a certain forcefe0d636 pg9 p 4m z djzg1;shmaa2x;bj. If the charges on both objects are doubled with no change in separation, the force bet6j pd3am0s;apgdj2xgm z9e h6 f ;z4b1ween them

  Two charges are separated by a distance d and exert mutual attractiv5y9fd-z kw6 vse forces of F on each other. If the charges are separated by a distance of d/3, wv5s fk-9wyz6 dhat are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to thjv, (reek k;2re 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 force is now equal t (ekrk,2;ejrvo

  An electron and a proton are separated bymi;74 zoi2yw s 5z;sab /htr4h a distance of 1.0 m. What happens to the magnitude of the force on the protonz th yw s /s;h5zb;24rmii4ao7 if a second electron is placed next to the first electron?

  An electron and a proton are separated by a dismr4 je +i,b;tndc;cz* tance of 1.0 m. What happens to the magnitude of the force on the f;tricm 4+d;becj,n *z irst electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 2cec7 ymgcrc 3d4.52 r:qdwii7q).uj6vtm kcm. What happens to thu27rcici5 mtd:7 m vykq6w3)d4r.g.2cjqcc e e size of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q 1ql5riyz5ou )qwihzv 5q,r :- is placed at 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 electrostatic force acting on the positive charge at thy zr, vql)q -1wi 5iquh:5zr5oe center of the square?

  A point charge of +Q is placed at the cen ph og,aik1p4:troid of an equilateral triangle. 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 d1ph 4:p,ogai kue to a third charge of +Q placed at one of the other vertices?

  Which of the followin-ts ,h1*la ipe/z jtqz(8vie 6g is not a vector?

  At twice the distance from a point charge, the strength of the elect1,3s)vl xqcq2 wbc7 dvric field

  Is it possible to have a zero electric field value between a negative and p/n i/w)iw+y0 gq.rmf leq skn17rs .,aositive charge along tr1,w sn/kmar/ili se+q0 7yw.fg q.n)he line joining the two charges?

  Is it possible to have a zejvw /g0nq*tw :ro electric field value between two positive charges along the line joining the two chaq0 g* vn/ww:jtrges?

  Electric field lines near psitiveocu-/ +h5a vim point charges

  The electric field shown 7cr c.al*m,egw. mf6s

  Can electric field lines intersect in free sp g+.y pi1ihgta5ao6bs/ t a2l.ace?

  A solid block of metal in electrostoo. g;i1ydmlx z6)u,r atic equilibrium is placed in a uniform electric fie.y z,x;o ml6r)u1og idld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow meta) a:k7thimpx- l sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the mk : -hpx)7aitsurface is

  A cubic block of aluminum restr gf0ia8.5zpv od+v:cs on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block'f0vc5z:oi pd ra+gv8.s top surface?

  If a conductor is in electrostatic equilibriumb 1o16)yu aaofm 1fxo1 near an electric charge

  A positive point charge is enclosed in a hollow metb 5vsf5qjmai 6lx.e;3cs pu(8allic sphere that is grounded. As compared to the case without the hollow sphere, the electri ;l6amb 8qj(epi5 s.usf5c3xvc field at a point directly above the hollow sphere has

State three properties of conductors in static equilibx n93k.dhc-q)m qx1okn5q3 g srium.

State Gauss's law.

  The charge carried by one elecc ;moh4 7t y06afji2tbtron 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 charg zn ( ;yb a:qqttox/.0*anhb:be of +2.00 mC. How many more protons than electrons does this piece ybb*atnbqztq ;n .(x :o: 0a/hof plastic have?

  What is the charge on 1 kg of protonw8jul7rpylr e*mjsph . h 49)0s?

  An atomic nucleus has a charge 9fkj- *b8q(khcnq- uxv/u ;ozof $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm,pd(vqq 9amu r*r1-4yh bh(1on have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric n-r qqh(oud9(ra41mb *yp h1vforce between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them-j0 k 7l)xdtlag)/ay6pmm1 fq is 1.0 N. Wh- )ga qxtpjlk60 aymfm)l/7d1at is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 16qr ;jtxrl5 m2.0 N. How far apart are they?

  The force between a n6bppmu0gj+( $30 \; mC$ 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 1.0-N force. If ti-yls9.8;uez sc.tfx hey are moved to a new separation of 8.0 cm, w8e usfy9st..z-ix c;lhat is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Th o pies:/bw-wr;w: o2;ujzz +he first charge is at the origin, the second to b-/p wz ozwisj+u2e;;w:o r: hthe 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 the x-axis. A charge of +g6 m(m:y ve7ixrn1(og2.0 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 electrostatic forcx(mg v :mi(gr7yeo16ne which acts on the charge at the origin?

  Three point charges are located at the following positionsh1j/f-u.g7-lhp mgmec s+j b4;e) t wg: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of th cbtem ggg+lw h)j7./f;jhpe -m41su-e force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point m )ov.;7b,pbybi s ;oqcharge 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 iv )o b.pbm7;yqsbo; ,at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m .fa-vo )u5lcw2 orly3, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What 3-aroco vw) 25uylfl. is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 u4ax/r98tems = -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 5.0 nC ch/4 8eraxmstu9 arge?

  Three identical charges of 3.0 mC are placed at the vertices of p2,d0,lwuk x*wa5,mon )z sm can equilateral triangle which measures 30 cm on a side. What is the,,auc2olwwmp )5 *0x,msn dz k magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Qu*/nwd/gv*twn dp //i36 y jadg0lcp,, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possibl0iyu np*n6dgdljp dw ,3* /va/g//wtce 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 = 43,yop07hf xhl .0 m. Where on the x-axis can a third 7hxp0 oyh,l3 fcharge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and s0m qg lgl92 xnmr)28s:rins/ charge -q is placed at x = 2a. Where can a third po08s/n9 lmil2gxs )r2r:mq sngsitive charge +q be placed so that the force on it is zero?

  A copper penny has a maqjxknfr0 6(- y6g ,tvuss of 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 bmd- rd4z lw5d/y the attraction of a fixed proton sowl d4z/- d5rdmme distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads h0jcq38 0vr9w0lntzi which are 30 cm long. Both are given idej r08hvz03 qcinlw0 9tntical 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 +40q )tc mbz:-z 44mm(yw crl;qs6e. What is the magnitude of the electric field at a distance of 1.0 m fro4 (srqyqzl6)mm4 -z:ctcbm;w m the nucleus?

  What are the magnitude and direction of the electric fi59 f npkenz,,tru ,92oirzj9o eld at a distance of 1.50 m from a 50.0-nCiu ptozr52,k 9eo9z,jn9, rfn charge?

  A 5.0-C charge is 10 m from a small test charge. What is the3svp hxw;ss8n m4e29c magnitude of the electric field at then m 2spves 3cxw8s;49h location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. Wha4e;b xwou87 pq-ltky /t is the direction of the electric fieq4bkpw;-o 7xeu 8ylt /ld?

  A 5.0-C charge is 10 m fq(fqn5igc;9jws0 6u .oic5e 2n yj s2drom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at thequc(;5s ds jyq.2wj2nioenfic9g 056 location of the test charge?

  Two point charges each have a vaec9y oy r.sge yg0y39)lue of 3.0 C and are separated by a distance of 4.0 m. What is the electric egsg99yry y3e .oc y)0field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -c.pvu/ 1jmjv *4.0 mC charge is placed at .vv/* cmuj 1jpthe 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed ar:-th6tqf:osa /p6 vh t 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 s:p:fhov6tar/h qt- 6 two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC atz ye4+ s5(oapre placed at x = 0 and x = 0.20 m. What is the magnitud(sy a4ep+zt5 oe of the electric field at the point midway between them?

  Three 3.0 mC charges+hk:ts7nwrs:grjy0e(e ) jrg+ y (y*g are at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.ns:rykej*s(0:+g gtr (h 7wjr+y) gey

  Consider a square which is 1.0 m onv. xap4gms57b a side. Charges 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 at (1, 0); -v4a7 mspg 5xb.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 4 krp9t4k*lrzx-.ao -wmzpm/md3 ;yua uniform electric field. What is the magnitud3z xmr-4m4; l9yw-mop.k tk /zdru*pae of this electric field?

  A particle with a charge ofryqj -*q6,vcf 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)hk gs9sz :v.d in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for) kg:9z.s vdsh it to be suspended?

  A foam ball of mass 0.150 g carries a charge of p*m8ne+o(fsa h- 0j8h o2 dsfy-2.00 nC. The ball is placed inside a uniform electric field, and is suspended agf y(deo2fhs0o* j+ 8-nms8ah painst 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 +2.q fgo0p2co9 9b0 mC. What is the magnitude of the electric field 5.bfocp0o929 g q0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elevk qk 9l(*sny(ctric field 6.0 cm from the c9nsqkk (v*( lyenter of the sphere?