State the law of conservation(lksg ia 8/2 ipx*e-hx of electric charge.

  Is it possible for two negative charges to ykk z t0. 3)n7z1hkmjxattract each other?

  Is it possible for a pog)e xu6zx d /q+1iec5ositive and a negative charge to attract each other?

  A glass rod is rubbed05ps7fr4wzciso+ja /4,get j with a piece of silk. During the process the glass rod acquires a positive charge and the siz,ac+04gs5ofw j7spe j i/tr4lk

  A proton carries a

  The model of the atom shoe1pqq9v5 /s2di5v xb xws a

  A neutral atom alway.nm:p/b;bwfk r x)l md,a is(9s has

  An atom has more electrons th gzgq.4c5kg ml:.yp9pan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclql3.q, rnyp0wei are referredpq0rw ,l3nq.y to as

  Materials in which the electrons are bounjlv,5srw 3es okk0-8f8m d y3vd very loosely to the nuclei and can move about freely within the material are referred to ass- kvy3rsewk3f ,8 lom805v jd

  A negatively charged rod is brought near one end of an uncharged mj(f3d0 g*q0ih9 ki aysetal bar. The end of the metal bar farthest from the charged rod will be charg0*(ji yq0gd9fs3ihak ed

  Sphere A carries a net positive chargy . dvb2gum;5ae, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly toad2vb. m y;5guuched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod cmn 8lp(x4t3ab 0rqc8m ( ya el6xue,2uharge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chk5mc2x c ;ets8stow83qys .9oarged glass rod. The electroscty8wok.3xs qc8scm5 29t; oes ope

  An originally neutral e*sw1e :8st*lfnhke t/rfbf *+lectroscope is grounded briefly while a positively charged glnr/es 1**bf+keft* :stlh8fwass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Thenw i1voqz eu6pw0vokz2, r(c -- a negative object is brought near the electroscoz6uq-ic01- ko2vwzewv,p r(o pe, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insr,8 s*v q9lpab0 imzz;t-d)r xulated 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 98qd)lpmrr, ixzs t0;-v b*za 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 Coulomozn pv: d+70idb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatet(s o- ea lyikh)mz4*i-k,ra+ d by a distance d. The first charge is larger in magnitude tha4aoahky) zs*+r( -tm,ei -lkin the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placeoad1jr q83yoy6(t uwd; zv/4q d near each other on an insulated table. Which statement best ot4 d yy6z/qouqw; (3rd81vja describes the electrostatic force between them?

  Two charged objects attract each other with a cert4ue.u a ii:ki1ain force. If the charges on both objects are doubled with no change in separation, the force betweeei4i.k iau1:u n them

  Two charges are separated byw557p2,9,c oc6jaf 7ijken 3ugyf1rqfz iav3 a distance d and exert mutual attractive forces of F on each other. If the ch9 vgq3 an1pa eji5k2yjwo57ff,i f63zc,7rucarges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. e ;uy*ky0fl3 siv0dqxm /*l7eWhat happens to the force between them if one cha x/qlm3f* 70yu; *vsei0eklydrge 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 q8y msu8p8 x0jby a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is pquyj88xs8m p 0laced next to the first electron?

  An electron and a proton are separated by m35h87selnuc wcj9bsk 6k9i*izn/) aa distance of 1.0 m. What happens to the magnitude of the force on the first ecab9kjuhs / mc9in763ns l*we5kzi)8 lectron if a second electron is placed next to the proton?

  An electron and a proton are separate(z ae-(elqlh 8d by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is movez-8e(e h qll(ad 0.50 m closer to the proton?

  A point charge of +Q is placedhpse 1 (yc4cu: 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 positeup 14 hs:ycc(ive 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 placedi0 q1x4q lcjydk0b)v/g 6etg , at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's verti)j,ey 6dq 0g il4 vq1gtk0/cxbces, 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 is not a vl z ae/9hh:kne9stv 0*ector?

  At twice the distance from a point charge, the strength of then.w;usm+z3u hb/5 inp electric field

  Is it possible to have a zero electric field value between a negative and positoi )fe.; upz8hive charge along the line joining the two charges)uho fi. pze8;?

  Is it possible to have a zih/5*tc+x xm rero electric field value between two positive charges along the cx x+h5/t*irmline joining the two charges?

  Electric field lines near psitivqqtjcsn+45jtv4 jzx nz8(3cih/y. a .e point charges

  The electric field s artj jcg/.-6uhown

  Can electric field lines7eb2 t*-i:pybibopju / zn1 ,z intersect in free space?

  A solid block of metal in electrostat 931wu3 t/vm b6dupmbzic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's inter/v3tm d z6p13u9bw mubior.

  If a solid metal sphere and a hollow metal sphere of.lyawm *13,on/8ktgv b3wb fi equal diameters are each given the same charge, the electric field (E) ,tn1akigowy l* 8 3w3bb/f .mvmidway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where o m 2o*74uf67nxfn iiia uniform electric field is directed straight upward. What can be said concerning the chnm72 4ii fuonfi6 o7*xarge on the block's top surface?

  If a conductor is in electrostatic equilibrium n0;aha gf qch.lw 16jc07tzegu5 ;qd*year an electric charge

  A positive point charge is encloserf .f)43vzy limwjl76d in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electricll.ijy7 6rv4f f3mwz) field at a point directly above the hollow sphere has

State three properties of bxbo: q,,lhy 04am f0wconductors in static equilibrium.

State Gauss's law.

  The charge carried by.2 /gsk- 9sft-shkfcln 7(cbg 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 many more protonwe o t6a32+fl)8jvi, t hl/gcfs than electrons does this piece of plastic haavj+/2f llgf ohe ,83)it6cwtve?

  What is the charge on 1t;fw 57lqx a.koy-a /u kg of protons?

  An atomic nucleus hascv bamf)35/rf 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 1.5 cm, have charge values ofwk vxiihqq1 tykc;4*uqn 9.,; 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betweentkx qy9.1uqi4vkw ;h*cin, q; them?

  A 1.0-C charge is 15 m from a second charge, and the force between them nb.6riua*(nwpg- j1 a is 1.0 N. What is the magnitude of the second cha *j nr1g-6n.(awbi paurge?

  Two 1.0-C charges have a force between them of 1.0 No 8*em ,m0px)vo h.z yfk,zz8r. How far apart are they?

  The force between a ;pnlm- ki .c.uth58xh83:avjzr x1cs $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initia/vp gzlj;h ik* * ev,d8,b2h( jlue9bslly 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is th,b(bldvlup9*j,e z ;8 2v/ke*s j highe electric force between them?

  Three identical point charges of 2.0 mC are place8 +dsy3* k. yjbf-kefbd 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 magnitud.f b+y j*e8kkyd -bfs3e 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 +2.0 mC is placed a1 )lye)cqyx; yt )1;yel)cyqxy 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 which acts on the charge at the origin?

  Three point charges are loc n )+pg3/wuotzated at the following positions: 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 tw)/ +pogz3u nthe magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, anmg kow41.,arm ;m0 gnzd a second point charge or1 ;m.k,gazgm 0own4mf -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-left corner?

  Q1 = 6.0 nC is at (0.30/d mbk : ljy:k/boen5uo65b,2qvmr h0 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the 5u6kb/ e/:bo2b5ymqld kmn0hr: jvo, magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = g8gsp1l5z wqth)c, )d -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the 8p dts g c1hw)5)lgqz,direction of the net force on the 5.0 nC charge?

  Three identical charge.y-knbrh +2lue14.1,wv,r3y2shwu vj p d rhxs of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of thr-wvvdkj.. ph ,se1,u1rw2hh u+ybrnl3 2y4xe charges?

  Consider point charges of +Q andhwx ,) bh66ky9 krn*fs +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such thatysbn)6kkxhr6,h *wf 9 the electrostatic force acting on it would be zero?

  A +3.0-C charge is at theezdv3-fz)ph46rvzqq 6x4 x*t origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zeh )4r-vep6xf zqxq6* t4zdz3vro?

  Charge +2q is placed at the ordimlz(qug.y(5dhh 28 igin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zh (igql h8m(.dyu 52zdero?

  A copper penny has a mass of 3.0 g. A totai , o76wcl)6nbi,zoee t)d1 xil 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 attraction of a fixek.jj( r3etm.md proton some distamjme rt(j.k3 .nce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a,lhod 1xl;upxw99k6pr8tt maz5i - 0h common point by nonconducting threads which are 30 cm long. Both are given identica6it hm9 d0o5h alx8r9xt-1;kpzp, wlul 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. mke+2ge/1 zh/s pui 9b What is the magnitude of the electric field at a distance of 1.0 m from the ik+1e p/s mugb/9z2e hnucleus?

  What are the magnitude and direction of the electric field at a distdeb/tw*(* tp0b4lz m bance of 1.50 m from a 50.0-nC cb(btt/04pez *lwm bd* harge?

  A 5.0-C charge is 10 m from a small test charge/uuyg 1161zdohyh i2z. What is the magnitude of the electric fi1 uh2guzz/1 6yhyi1doeld at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directi*-d - nig+mnkdpbdlt)- i8e;kon of the elecg+n kl)8*d-b ei;k-in dm-ptd tric field?

  A 5.0-C charge is 10 m from a.6s 0kkvbm6tv small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the l0vmb6.s kk v6tocation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance ypot;c 1o fg87 ph+dp,of 4.0 m. What is the electric field at a point midway betwee7p,1+; y8fo copp htgdn the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stimcy7 iwwgzxzt4ki: ,8pp+h t(.noq9 .ck and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm m+nh y.zm. oqt4i p:k7w pctxz(,9wgi8 ark?

  A 5.0-mC charge is plext1v ;c0-iz kaced 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 1e-vi cxk0z; tjoining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and roo se 2;2 29t-a3akyid/mpk ex = 0.20 m. What is the magnitude of the electric field at the point midway between themay m- keo2r3 a9soi22kep/;td?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 mx+ snqf;-;fdfd - 1pdl. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of thqd ;ld;-x1fnsdf+ pf-e square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners3+v qv/e7ll ap of the square as follows: +4.0 mC at (0, 0); +4.0 3ve7a +/qpvll 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 of 5.0 mC when it is placed in a uniformt. .6sjpmzt g 67j:3ub*k zqie electric field. What is the magnitude of this electjb:6e ip.sjktg3 q. 6u*zmz t7ric field?

  A particle with a charge of 4.0 mC has a mass o 2:3nacw8w-xysenjp 9 f $5.0 \times 10^{-3} \; kg$. 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/Ce ap0u;6anwcgt-4 x3/m jmgm 4 pointing downward. What charge must be p nge6t0auwa / -4p4gm;mxc3jmlaced on the ball for it to be suspended?

  A foam ball of mass 0.150 g carr/-tfce+ty:ma 5bq9) c mdj9l kies 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 magnitude and direction of the eqm ecc dtljbm 9ky +:t/5a9)f-lectric field?

  A metal sphere of radius 10 cm cew8 ;b8(0nrw;nct fdt qk86k sarries a charge of +2.0 mC. What is the magnitude of the elecwtn(r 88nqcks60;e8 ; wktdfbtric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wha fgh3ihz( s.f0t is the electric field 6.0 cm from the ceg h0zhs.(ffi3nter of the sphere?