State the law of conserv ,g9168gutc -tcexhjv0ki yr, ation of electric charge.

  Is it possible for twon tq42+ anm eso3oo3.o negative charges to attract each other?

  Is it possible for a positive and a negative charge un2w j8kae42.om vg(ah(ey pnw/5:eq to attract each other?

  A glass rod is rubbed with a pr2ydy++ xt:ed iece of silk. During the process the glass rod acquires a poyr t:x+ ydd+e2sitive charge and the silk

  A proton carries a

  The model of the atom awxqc8bw r;8/ 5tnc 4zu)gn pn4pe;a*shows a

  A neutral atom always hatr lryi++;hw: x:)strs

  An atom has more electrons than protons. Th0 x7xy3sts u3qe atom is

  Materials in which the electrons are bound jdvd8 puz95bq8x ljtuyn+u/6/9 w; u8/yunxt very tightly to the nuclei are referred to 9/x8qun8x 9uu l;ujdyz +vjy/w 8p5tu /tdn6bas

  Materials in which the electrons are bound very loosely to the nuclei and can dqwnxwsu1* futfl7(/3zxo3en5 l80s movqx5wuwl7(s1efn80*tu3 3 zlfnxso / de about freely within the material are referred to as

  A negatively charged rod is brought near one ec* 8rax-xwc6 hnd of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chx-8c6w cxh *raarged

  Sphere A carries a net positive charge, and0zbsz9z)an; n oc(zk28ec, cy sphere B is neutral. They are placed near o29zc0 n8c,nb;zzz)a s(ekyc each other 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 pod 0nk4p8f lh9azmo0b +v/ oso*sitively?

  An originally neutral electroscope is briefly u rv4+qt 6wt/3k:phadtouched with a positively charged glass rod. The ewva/tdq4ru :3+kthp 6 lectroscope

  An originally neutral electroscope *shsxclvc7/ld5ojlqt87 f+:3 r k q q(is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, thecc/tv3(jsflld q ok7lh*7 + qr:qxs58 electroscope

  A positive object touches a neutral electroscope, and the lew/vm4z: 1l7xz */zpu jw4tob naves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the lwzltzuz7xovj4n/ w /p1:*m4b eaves?

  A large negatively chaq0*oepv)ig t1 rged object 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 ball, and stops. The first ball rolls forward, but does not touch the negative object. At no time does either ball touch the negq0t*e 1 gv)pioative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomwp0j0g trj9r 0b constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is large ks 4j.6adlbcww6 /zn2r in magnka wc 6b64s/2dzn.lj witude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They a0(ddsiz hud8 t 0la4a74 db/zism8.p+oo:p z wre placed near each other on an insulated table. Which statement best describes the electrostati.s 4oa8ost /zd47(add 0:dlphw0pziuiz8mb+c force between them?

  Two charged objects attract each g1 /ky fr0r:epps l5akc/(i(zother with a certain force. If the charges on both objects are doubr 0ksli5r(1yppg:ca /f/ kez( led with no change in separation, the force between them

  Two charges are separated 2. /cclfclsb m9+0isfecq//:yy- ckiby a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual foy f is 20-csl q:+y.cec/f9lb//mikc crces?

  Two charged objects attracte dffou8csmg232q 4v 5;yzm5c each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separati5;ezu 3s25f vc8mmqd 4ycf 2goon distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton as1pibpsqx4.clnc).5 8x 4rwcre separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the firsx )sp.4rs c8p.b15lx4cnc iqw t electron?

  An electron and a proton are sekg h fo;brrpg bu044j6,qv b1a1,zeh9 parated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is pla4zr 0,,verf hbj611qha 4 b p9bu;gkogced next to the proton?

  An electron and a proton are sehgzkl-c2f 7ov epz6 .gps01l)parated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron izes l6ovfp.clp0hk1zg 7g)2- s moved 0.50 m closer to the proton?

  A point charge of +Q iatq ss 1iod/rc2s7q3 ;s 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/ 2aoq qtds;iss1c3r7 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 equilater+d vbg(o e+pmvau pt 5(5kf1n:al 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 chapd1oet+f55bvg((aun+: k m vprge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vector?m xen6 m :u*diy:2az9d

  At twice the distance from a point charge, the strength of the electricx(nx2 eclsr9o vzu058 field

  Is it possible to have a zero electric4*u,, vlc(*yecbkh sk field value between a negative and positive charge along the line joiniyl(hvu kbk*4,c,c* e sng the two charges?

  Is it possible to have a zero electric fieli;vwol) hyk7i-8:cd rd value between two positive charges alvw)8ldy ;- ch7rk:iioong the line joining the two charges?

  Electric field lines near ivoz9x)w iobhz9s ,5;psitive point charges

  The electric field shown dfcgozr,zx97wb3 t*8

  Can electric field lines inters7b ulqzie))j.blu9 n8ect in free space?

  A solid block of metal in elepd:;d +e,1we qax-txectrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in th:d ea+wx,1-etxeq;dp e block's interior.

  If a solid metal sphere and a hollow metal ,ppk-*y y cy9to7vzsz kv vmqi a;2dab:.,:0fsphere of equal diameters are each given the same charge, thb mp ;2cok -v:dt9, p: ,qs*yy7zvi.kfavaz 0ye electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests 8n 4);bi)l1d1a i guyg9 snfcoon a wooden table in a region where a uniform electric field is directed straight upward. s1cu1b)i dy; gln9a)fgn4o i8 What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric charge+a +tlsg8dm 0cy 6wbck95w-mt d4-fad

  A positive point charge is enclosed in a hollow metallic sphere that2f4 xs hncdq*3h/take3, gf2o is grounded. As compared tk s2fgandq3 2cxe/th 4*h,o3fo the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertime-8 cadx17tp es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is ,vw+vnb dzm p,b 8-ff:q2 kj4 2vo*rjz$e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a ( t/uy)g c26 lo*uhsg75domh5mh6amm net charge of +2.00 mC. How many more protons than electrons does this piece of plastic had/5hsgh2mu6uga(cm )5o6 *yomt lhm7ve?

  What is the charge on 1 :be,z k1wcz .buw)4:wukiyx,kg of protons?

  An atomic nucleus has a )uap;el* ( r6dwog *qncharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by :emwjmalp.z.zs0cy 2k;j9 0 r1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betweejcw:l 9k.psm; zy 0m20rj.e zan them?

  A 1.0-C charge is 15 mjoz) ;vhr 8wjx9(pue t44y 0bk from a second charge, and the force between them is 1.0 N. What is the mapjo0 8w(jt zbh v9r4y;x)4ukegnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are tb+ dq2 ndwpt +k)cq,t/hey?

  The force between a k ;f1n78tew jv v.9lpsa g6)nj$30 \; mC$ 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 fo7) 08/fd vv twj8btr:9odm h6vndy(txrce. If they are moved to a new separation of 8.0 cm, 6tbjm9 xydvvt )8 th:/8ndr7 0fvd(owwhat is the electric force between them?

  Three identical point charges of 2.0 mC ar1.t 7r (67mxjwaa*zgxuthqy- e 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 1waz 7 tumq*(.xa gtjy1 rh76-x00 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-ax. pr6 bp/mvuk-is. 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 electrostatick pvur-m.6b/p force which acts on the charge at the origin?

  Three point charges are located at the follk.x) m*i6h jy0i2biumowing 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 i0kyhbi 2imjm u6x* i.)s the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q ioghx o2:u2+lvyq/5h ws placed 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 th22vq5xh +:w yuglo /ohe lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10e +8+v ;d kjzlzhi)v2/qxry 6l m); Q3 = 5.0 nC is at (0, 0)le2+k+ v;6)hlx zziy8/jvrq d. What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0mu9mj * 8rta hwfu7e3-, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force r3fu*t u9aejw7h8 m-m on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertic8rvmg i; leud w+-k32ges of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which actswue -g r3l m+i28vg;dk on any one of the charges?

  Consider point charges of +Q and +a)fc6*t yj fu a:5gf+ ,rnrc+j4Q, which are separated by 3.0 m. At what point, on a lin5tj6:r)arjy g,+ f afcncu*f+e between the 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 q7 u-ah4s9wz mand a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charh qau wm47z9s-ge be placed so the net force on it is zero?

  Charge +2q is placed )b py3wsur28h qwn: l1at the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so thau h1wp lwbrns2)q:8y3t the force on it is zero?

  A copper penny has a mass of 3.0 y -+ 98bvz*wuhi+hven 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 the attraszm nc/9;2amlv:k m5iction of a fixed pzmi9 :/k nmam csv25;lroton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point byb4u5mv :y6rpa nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angluapr:b 5m46 yve between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. Whwnf4 fq 0xkgx63,lj9 twq98xgat is the magnitude of the electric field at a distance of 1.0 m fro8kfwt69jf49lnx,x ggq0x 3qwm the nucleus?

  What are the magnitude and direcxdp9b l mnz859+qlwsqh 3g3:rtion of the electric field at a distance of 1.50p3 8qr+ h9lmgb3 9qsxwz:dl5n m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small t8z-3,zbd rb ori 4fz9mest charge. What is the magnitude of the electric field at the,3bozd9-f4z8 br imz r location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction vmm 1vgqzr:.jz v;.l;kh ,j;enf4oa2 of the electric ;;ejh.f: k2 j vl1r.vmm4 zo;agn,zvqfield?

  A 5.0-C charge is 10 m fromm5 fhi g(+1uke a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the15(mih u fk+ge test charge?

  Two point charges each have a value of 3.0 C and are separated bytcl.i-c v nq )ur-s67hk08nv n a distance of 4.0 m. What -ktn6v i r 7n)0n-ul.8vhc scqis the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of asb+q.6l. cjno6zrik6e vw9 /v meter stick and a -4.0 mC charge is placed at the 50 cm m+j6v696zwo bk .nise rql/c. vark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm marrf0fw4p8-orh ncj 7 hpd7;/ juk of a meter stick and a -4.0 mC charge is placed at the 5j;dh04pj7f nr u/o-w ph 8f7rc0 cm mark. At what 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 placed at x = 0 an) 2vcpi2l 04mi:fmww sd x = 0.20 m. What is the magnitude p w:4i flc mwim0)vs22of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squa2y8idl*ts; (ncy2 oa dre of side 0.50 m. The last corner is occupied by a -3.0 mC chargn ty28iy;s2a d*(oclde. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are place evnxi(7 u*)0 jttxdi u8,wfea u+.b;td at the corners of the sqbtt78uvxauuf jtw+e ix ,n)*0e.di(; uare 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 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 uniform6qby ;14ypd+ lg1 9ntawbi-dd electric field. What is the magnitude ofd g4 lb61adbidt 1q +;ny9-pyw this electric field?

  A particle with a charge of u6 w5xbr,f6+ e5 oqp2w2 v.fb gjf4ccs4.0 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 N49kenesa :de*zj3+fk /C pointing downward. What charge must be placed on the ball for it to be suspenfe az4e*k+3j:dk9esn ded?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is pla o*x4d8x0rr-no-m bjm ced inside a uniform electric field, and is suspended againstd- xb0m onx8om*jr- r4 the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries r w )z jmz13ok/cbc*s os/7l3b w/j3ng9mec8fa charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's s93j lg/3e*on b8wc) s/ ccrjmf sw7/kmoz3z1burface?

  A metal sphere of radius 2xeb wn8 +vx1, 3ygx:pv.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the spv8+1xy: wgx,b xpe 3vnhere?