State the law of conservation of electric charge( suh7yf7n(h1t stt5z .

  Is it possible for two negative charges toav88tq,7xa rm hva 4,j attract each other?

  Is it possible for a positive and a .dn pz l65bx4tnegative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the processf(.1n yii7sgm mv/kn / the glass rod acqf/(mkii 1.yngnvs m 7/uires a positive charge and the silk

  A proton carries a

  The model of the atom mnt+me/n /7n /(mt,1htoaoyvshows a

  A neutral atom always hajdme+r8 s)qsk+ 9qh x)s

  An atom has more electrons than prokr:+q8- fvew qtons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refvvm00z i6rh z1.me. ruerrez0m1uzmv60h vr.ei r.d to as

  Materials in which the electrons are bound very loosely to the nuclei and(klp h-mmcv+ * can move about freely within the material aremhv-*cmkp l +( referred to as

  A negatively charged rj ,.bkxyhnoywz4;mmap5wx+ g9r)9rs 9jm2 ,e od is brought near one end of an uncharged metal bar. The end of the metal bar farthestx. k,9sej rxp az9)h rb ,n2jo;4ymmwm+9y gw5 from the charged rod will be charged

  Sphere A carries a net positive jmc)rndd2 wy xaw/vf 1:r ,e4,charge, and sphere B is neutral. They are placed near each oth2y :xw4fvcrddr )1jn/,,a w meer 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 po98k q u /k2g hpq;yie(j8hv:gxsitively?

  An originally neutral electroscopej-a 3vv0w7rs o is briefly touched with a positively charged glass rod. The electros3w-sja vv0 7rocope

  An originally neutral electeu o;q:yfm m. -f-kd1fo /)ppgroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the elect;- emo-f1o:q fmkgdfy p)./puroscope

  A positive object touches a neutral electroscope, and the leav56 eniup+p n;gf2q: iw nt9fj:es separate. Then a negative object is brought near the elec qfgnj f5nwt+9:2n:pui ;ip6etroscope, but does not touch it. What happens to the leaves?

  A large negatively charged objectl bzx:(e /hw6bw /dkssw1mu+5 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 ballws mwdb u6bl:1kex/s(+h5/ zw, 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 constanbati y 9 bzy.u72h9o)ut $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is (ptc u;qi l4wv (ko4yfma/zd-uz 763alarger in magnitude than the second chyu a44lumwiv(ac k 3p (6zo7qf;tzd-/arge.

  Sphere A carries a netp4 e3)ec:n , thwi3v a.k8tsup charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement tt.vip:43)8k,p cwan hseue3 best describes the electrostatic force between them?

  Two charged objects attra jo(rpn;s a)x8ct each other with a certain force. If the charges on xar(8nj) o; spboth objects are doubled with no change in separation, the force between them

  Two charges are separated by a dist ttvy ck tz)-xf.muga,w ,h/24ance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, wx2tcwtz /af, 4mky)uh -t ,vg.hat are the new mutual forces?

  Two charged objects attract each other wibrt z)mmw2 r,4th a force F. What 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 rr)wmz, m 2tb4value? The force is now equal to

  An electron and a proton are separated bygo2:kce t. s7n a distance of 1.0 m. What happens to the magnitude of the force c2s7ntoe .g k:on the proton if a second electron is placed next to the first electron?

  An electron and a proton are sew1ancv e b1,*f+b ax6y ouv40kparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second efa6 ow4axk1+vvbu 0n,bc1e* ylectron is placed next to the proton?

  An electron and a proton are separate9oaze4 3;tb *uhjdi )id by a distance of 1.0 m. What happens to the iezjhtoad ;39) *4buisize of the force on the 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. When a second poibvf8tnmr)a;x/yi-5 6g g,m s ynt 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 theby 8;n ,y-)/5 mrgsgxfami6tv center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle. Wh0n:qyze 8o j9ben 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 o9z8b: j q0ynethe other vertices?

  Which of the following ilvid+r2 ca.. ss not a vector?

  At twice the distance from a poinj zwv13k)wyicj +6.wn t charge, the strength of the electric field

  Is it possible to have a zero electric bf) (ba60cvbwfield value between a negative and positive charge along the linef c 0()6bbwavb joining the two charges?

  Is it possible to have a zero electric field value between two positivo5o*c q cm ,b-k unrz)n,e(nfgk4x(k;e charges along the line joining the two chang)c ,u,rx4*e c-qm(ozkb(5kf ok ;nnrges?

  Electric field lines nea8 t hgv3 b+yebpx+6-ie)* ywkir psitive point charges

  The electric field s 55(zk mejs vsq6+m(crhown

  Can electric field linapb;a qcgvl jox4xw, p4,9ggu 482z,o es intersect in free space?

  A solid block of metal in electrostatic ndn67: vbt7;1fqls r1f k nom/ mh*n0iequilibrium is placed in a uniform electric field. Give a statement concerning the electric fie1r7:i m6/q;vbt nnd 7ko*lnfh0n m1fsld in the block's interior.

  If a solid metal sphere and a hollow metal sphere ofmpk1f5w;n 6l5.m90qs)qoi jnog a)sa*;hz nz equal diameters are each given the same charge, the electric field (E) midway between the center s)i nz .*os0qn56jqkmfw)oaag; 9nzplh;51 mand the surface is

  A cubic block of aluminum rests on a wooden table in a region where a -0jfa 3vli-uj uniform electric field is directed straight upward. What can be said concerning the charge on the j 3-a-ivl0 fjublock's top surface?

  If a conductor is in electrostatic equvwd8uj ugwp:p59xs/gr 0n- j4ilibrium near an electric charge

  A positive point charge is encl8qp llmiak93,osed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the holloq,3akl plm98iw sphere has

State three properties of con-o-d; by ixm77i2ok arductors in static equilibrium.

State Gauss's law.

  The charge carried by o+vat p. vdtzt9 )v .bv6:uo(cone 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 macu)fg4g2*3 ;1d ic6: r iljal 9zhvvlfny more protons than electrons does this piece ofvcgdgh91z )l3irf4v lcu: ji*2; 6alf plastic have?

  What is the charge on 1 kg oftkz+q)b 5h5e or:zx k;( *yqyv protons?

  An atomic nucleus has m5z ix-,ztvq swvw8+0 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 ,ag 6lxi: c6)gku2q-otgx l y21.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude ofx,ua 2xqgk2):gic6 6l-ylg t o the electric force between them?

  A 1.0-C charge is 15 m from a secyi-f sl-*pt+k ond charge, and the force between them is 1.0 N. What is the magnitut +ykifp-l-s *de of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How 6 y7: 9o0oswlm0 dsp s9ind4oefar apart are they?

  The force between a g)fs 6nsl7evg /8pv d5$30 \; mC$ 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.ju /; pk0s/-gge17bgc dl riw-2u ilr7 If they are moved to a new separation of 8.0 cm, what is the electric fou77l1 2u/g i eggbwijdrl;sckr /-0-prce between them?

  Three identical point charges of 2.0 mC are placed on the x-akio u.yxp)jayai/-1 1xis. 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 the electrostatic force which acts on the charge at the origikxa joy /i1.u)a-iyp1 n?

  Three point charges are placed on the x-axis. A charge of +2.0 mC i0 geu x:jp 9(jas/kexn1t6 k-zs 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 force wh e guj0(z/aj snxktx9p -k6:e1ich acts on the charge at the origin?

  Three point charges are located at the followin7g ldn**v f+lig positions: Q1 = 2.00 mC at x = 1.007l ngi+f*vld * m; Q2 = 3.00 mC at x = 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 placed at the center of a square oa..(g dpog)fw,nq4hq. 3 jh5 oa9tsl, and a second point charge of -Q is placed at the upper g,sqp f5lon4.(9ag)od h.wj . 3thoaq-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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0zdiw3k)a,0 yez w0 abq(c( y1h); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on thewdeik ay h10)( yb(,z0wc za3q 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); ag2 /nx3lz 1rmQ2 = -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 o3alxmz /gr1n 2n the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an exif pw 4oiqj2a+ b-hc b(-+0qpquilateral triangle which measures 30 cm on a sc(--+iq2fp+jbbxhqo ai0 4wp ide. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by zcrmy ;*,py u,3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q su,r mu yp,;*zycch 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 = 4.0 m. Where onk 5:hmu8h;9idounk 4f the x-axis can a third charge be plid f9mn:5u4k8u kohh ;aced so the net force on it is zero?

  Charge +2q is placed at the origr 3./ef(gs1k8 acca lxin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on ile8.g3cak(ar /s1cx f t is zero?

  A copper penny has a mass oiv,.n8rq n7snf) sx: .r2jhy +)zmuw nf 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 t0 mn;ae0u*i bohe attraction of a fixed proton someume0n ; ia0b*o distance above it. How far above the electron is the proton?

  Two 0.20-g metal sphe5q/acykak1 2k-x 1utl res are hung from a common point by nonconducting threads which are 30 cm longl k/2-x1a1t kyca5kuq. 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 ha i9v. jic/c 4njpp,t3ys a charge of +40e. What is the magnitude of the electric field at a distance .c 4iicp,pnt3yjvj/9of 1.0 m from the nucleus?

  What are the magnitude and directio-bqh:.cqn i(g o +be: 6qg/urfn of the electric field at a distance of 1.50 m from a 5(iu: q-h:eb.r/q gfcn+b6qog 0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge 5 jvj 95li1a7fq,qcnl:ud yo4twi44v. What is the magnitude of the electric field at the locatiolydv7:, wn45cla1 i qf5vt4uq j4oj9in of the test charge?

  A 5.0-C charge is 10 m from a small test chardr0awmv5, s-a 3 f7q5 yjp1)oczhj pd+ge. What is the direction of the electric fizsp7vr0+j jq )fpo,5y5-a1m3dad hc weld?

  A 5.0-C charge is 10 m from a small test charge. Whl3 u5 cm-jixxfwd/8d3at is the magnitude of the force experienced by a 1.0 nC83 3ixdujc f-xlm/5dw charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and arencft0 -u yyk2u0rx2hf ,hn5-l separated by a distance of 4.0 m. What isr05hn2 ytc,2u-uhxy0n-k lff the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mett2 dbp1e msqu 4l))*kper stick and a -4.0 mC charge is placed at the 50 cm mark. What is the)2klb41q ppudtm) e s* electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick afhr uhi5:fhg+a:o3 .nnd a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the twoh.: aiur:hfo3hng 5f+ charges is the electric field zero?

  Two point charges of + v (a9b.2lop7zh t6ryu3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway be r phvo672.ub lz(tay9tween them?

  Three 3.0 mC charges are at ty(s5 yr mo,73ttjo kc2he 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 t7 s3yckro2t mt5o yj(,he square.

  Consider a square which is 1.0 m on a side. Chargesvo +p5: z2 mk; -8nzrmisi+rzb 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); -3.0 mC at (0, 1). What is the magnitudmr;zpi8zznr+b s:5 +-k2m iov e of the electric field at the square's center?

  A force of 10 N acts on qi6 gmgswx-9 3 xf4l7va charge of 5.0 mC when it is placed in a uniform electric g6xmslg39v 7f4x w-qi field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass of.gimyb:jo xom:/m/ acym 1c:1 sc f:s9 $5.0 \times 10^{-3} \; kg$. 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 fieldevn)v1 ew/i8y of 6000 N/C pointing downward. What charge must be plaev1 ev/ inwy)8ced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The b s7i,iz3 l+neaall is placed inside a uniform electric field, and is su z3i7i+,sna lespended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm ca7 *b/z3s-xi 5kkwp)y( cnlx rirries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surface/cwb* r5y7)s(zkil p3xnxik -?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the em/cwwg-0silt2 slbzt ). 8bnogq2l1. lectric field 6.0 cm from the cent2.)oqg lltcgn m80w/2-bls t zsb.iw1er of the sphere?