State the law of conservat-qzk6eu*ugug/ 3nk6c ion of electric charge.

  Is it possible for two negative chargeg(r0 - husq2khs to attract each other?

  Is it possible for a positive an z:mm5oread sso/5 (.bd a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Durin cr95 .xytdad4k)cc d.g the process the glass rod acta4.)5 dcxdkdc y9.r cquires a positive charge and the silk

  A proton carries a

  The model of the atom shows r-+cb, i 1r*e pb4pvgma

  A neutral atom always ha abo5:.xjlpmm3si -z9 1u6fsrs

  An atom has more electrons than protons. The atommy6.l h .agce6*4pt0 w;igabf is

  Materials in which the elfrj +d(n. n8i7a l-ssqectrons are bound very tightly to the nuclei are referred to.nai+sn8 lf-ds(q r7 j as

  Materials in which the electrons are bound very n6 7 vw: aqa/i1yfm2er u1d*ge8us bg+loosely to the nuclei and can move about freely within thevby1 a8g1q6rwna d2+fm*7 u sue:/ gei material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal baspmtv4w7lrv /86mf2-tb b) 9e p hzsk3r. The end of the metal bars42tbw3 9 p)mhz- vf e8m7ptbksv6/lr farthest from the charged rod will be charged

  Sphere A carries a net positive charge, ande.-a1*li;d1kf/0 0u9lnu/nk9 xu xvf ulcxm m sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whichku/u lx avm/e-01lfnl9d c1mf xu u;.xk9ni0* statement is correct?

  How can a negatively chargedj ,.2uut4qz 2;d,w pv10f ym(hgln kto rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched withcceq l 7za(3,gw6zu: a a positively charged glass rod. The electroscoewu,(ccza z7: gqa6l3pe

  An originally neutral electrosc .,r9dhpnctd p v j3czi6jy-1vs3)co 6ope is grounded briefly while a positively charged glass rod is held near 33nhj6v1s 6- z9ydod.t ) cippjrvc ,cit. After the glass rod is removed, the electroscope

  A positive object touches a,1(whfv bhvs r7)a es:62igci neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the ler(6 v: gv s7eiasbhh,iw1c2f )aves?

  A large negatively charged object is9q z*vgi 81en 6ce2ans 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 notae1zseg2*qncn8 i96v 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 c4bjn-d aw9(q-zb9h yj:na7cl-7adj u onstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge 8i-q nft2wyl *(k6u exn9by,eis larger in magnitude than the secon 6e(ni wyk*fun2tbyexq9l,-8d charge.

  Sphere A carries a net chargti 73i yod 0 c)ogvm;*fe43 c,tz9drgue and sphere B is neutral. They are placed near each other on an insulated table. Which zim3irof )dde4g 07,3ttcgucv ;9*yo statement best describes the electrostatic force between them?

  Two charged objects attract e9cubf+*j ppy,2n ag-4c sdj +hach other with a certain force. If the charges on both objects are doubled with no change in sepa a2c9fsgj*p4,ny+d +jh ubc p-ration, the force between them

  Two charges are separated by a distance d and e(6qy6 ysm,7 rx2+ zpw,fx(vbyaaa+p a xert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the newva pb6f,6( ++amxzrxysqy(7w p,a 2ya mutual forces?

  Two charged objects attract each other with a force F. W divsu8zr.wit;y83j26 k nr,xhat happens to the force between them if one charge is doubled, the otr uknj ,d 8zwy3 sxr68.;i2ivther 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. Whatwavn.c;br1 6 hk em-n4 happens to the magnitude of the force on the proton if a secom br w-a;4.e 6nnvh1cknd electron is placed next to the first electron?

  An electron and a proton are separaxi023 vfj vvu 2mgvsi 8-l;b.ated by a distance of 1.0 m. What happens to the magnitude of the force on the first eii-f0v8 x malvb3 g2;j s2v.uvlectron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. . -5ypzv7 n1riyx z g(dwlvz+: What happens to the size of the force on the proyriz(v w - gv.dz 57z1y+nx:plton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placea.dpndfg7cu /ji na)s:t.ngq kd )1 56d at the center of a square. When a second point charge of -Q is placed atn/:d 7pg6c5.knq .agu td i1f )andsj) 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 the center of the square?

  A point charge of +Q is plap m5o:hvjz3+v ced at the centroid 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 due to a th o:v3vjmh z+5pird charge of +Q placed at one of the other vertices?

  Which of the following is not a vector5ksc+ wl+f:)ltrgg(iz /uae i +q,vm 3?

  At twice the distance from a point16/e zmaw-yrskq8 7by charge, the strength of the electric field

  Is it possible to haveb; uvm8gj *io; a zero electric field value between a negative and positive charge along the line joining*g ovbj;;umi 8 the two charges?

  Is it possible to have a zero el ;v yg5(mt,4uaka7yxq en el,6ectric field value between two positive charges age;nym7( u6vtxk ae a5,,l4yqlong the line joining the two charges?

  Electric field lines ne +tn:as srsu( )x(9yvoar psitive point charges

  The electric field shp/3k r h(x2yoeown

  Can electric field lw89emz5 h y-yria 3:uuines intersect in free space?

  A solid block of metal in electrostatic equilibrium iilnkijr **s:d;gh+xn*ipos/1+u ,n ls placed in a uniform electric field. Give a statement concerning the electric field in thegsnp* jors,d;1 iui l:xli++/hk*n n* block's interior.

  If a solid metal sphere and a hollow metal sphere of equal 4+f a)5 mxs/t1rgzgbd diameters are each given the same cfgszr d+4 1/ tgax5)bmharge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where 5hlz g4p; am(wk*g xk 8zh:i.qa uniform electric f:8km glax.*k4;phi5( wzq ghzield is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an eleczb f8u+ow . 61znvnoh*bkw,r3 tric charge

  A positive point charge is env* /wte+ezgqzu 5d1ac;7u+kp zg6, vuclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electri+ 156auvg eu;upq7g*czk ed,zv+wz/tc field at a point directly above the hollow sphere has

State three properties of conductors in static equitscroi )3p ( :ds-v-idlibrium.

State Gauss's law.

  The charge carried by on4s 68 ebrl-toq0nrkamze5.h7e 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 mlg -e1 lwjenf( c4)ve 6*;m6wkttgo/3 zl0ljnet charge of +2.00 mC. How many more protons than electrons does this piece of plastvgmg6wft l/j;kc0e4nwo e 1-(6z lle3* jlm)tic have?

  What is the charge on 1 kg of p 5cpp*+a) 7cww9k)k a+xot lbwrotons?

  An atomic nucleus has a f uw,mq3*k;zd;d+lknc7wvdy9c ) io;1dnqe . 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 chargex mp1 x7hit : zsagr8*93col3j values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between them?*p3sojgh3:xcilam819 rzx 7 t

  A 1.0-C charge is 15 m from a second charge, and the force between tp11 au/ l+ggfshem is 1.0 N. What is the magnitude of the seu f1g/s g+pa1lcond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart ff)7nxb3)w4 tfmy8 jw are they?

  The force between a x gk ppjamtj1:omw7yr585 io.d/ h .r;$30 \; mC$ 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.xcf vi y/dgglt:+/. k tncmbc*-. y,g0 If they are moved to a new separation of 8.0 cm, what is the electr:gv0k/tfbxcl*/y+-t . .cgicmg,dnyic force between them?

  Three identical point charges of 2.0 mC are placed on the x-ax0rdjxt( t n/5c7b:,jrt)oa a xis. 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 directiocrdx70 :)rbjat( ,jo5t/naxtn of the electrostatic force which acts on the charge at the origin?

  Three point charges are plaimb1kq;zqc(x7f i,/y ced on 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 electrostatic force which acts on the charge at the ori,7 y; 1bk qiimqf/xzc(gin?

  Three point charges are located at the following positions: Q1 = 2.00 wyyn+b08vt wd(*d:/ g(ggbu j mC at x = 1.00 m; Q2 = 3.00 mC at x = 0;dgnj/(:g(ywb8tbg yw+ duv0 * 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 centerl8ppyr7op,uyl 71j5da0iz k*; sm6j o 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 i j l 16 pjrypk0;,p 87mdi5yl*7auzosos placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC ixr:n+oxk h 3ufd5wel/:8c3 iss at (0, 0). What is the magnitude of the net force on the 5.0 nCnhx3x wf:/o3 ked +lui 58rs:c charge?

  Q1 = 6.0 nC is at (0.30 7jy u5fw hshntf7*,z5igp,6nj(8m le m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0)j, 7(8f5 msuhn, pyhjfteni lwzg576* . What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices ofb93ha zftks1d8e) z.gu) - m9no uue4n an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic for e18 .4n9euu3g)tofzd-zm) nu ah9kbsce which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separacf 76p /yr;uzlted by 3.0 m. At what point, on a line between the two charges, would it be possible to place ;6lr/uy p7czfa 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 = 4.0 mwr.dbw - xxgxu8e;/ 8k. Where on the x-axis can a third charge be placexb/e 8;x 8xrgw.-wu dkd so the net force on it is zero?

  Charge +2q is placed at the origin and charge - kn-j.d,; zdjcq is placed at x = 2a. Where can a third positive charge +q be placed so that the ford.nz ;,kjc-jd ce on it is zero?

  A copper penny has a mass of 3.0 gw 3em8z7 2jqx3m5rzfd. 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 attraction of a fcui,bn7. n /wfixed nuc, wb/7.fni proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by not ero-4ih ;3wo( py6hr17nlat nconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces t r;ot-enl(3t41hraip6o 7w hy hem apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chargekr7f7 p 1pkhh1 il-3q:-unpja of +40e. What is the magnitude of the electric field at a distance of 1.0a1fh-3kk1pl77qpu prj i-hn: m from the nucleus?

  What are the magnitude and direction of the eeistbm 8:*-ck lectric field at a distance of 1.50 m from a 50.0b sk *m8e-ti:c-nC charge?

  A 5.0-C charge is 10 m fr:xema : 9n;zjsom a small test charge. What is the magnitude of the electric field at the location of the test chargemnx s; :e:zaj9?

  A 5.0-C charge is 10 m from a small test charge. What is the direction ofa)a d0zgk7a* t ,own(f the electric fi(07*w)o aatakfn,dz g eld?

  A 5.0-C charge is 10 m from a small test charge. Wh,x1.m oye 7mqfat is the magnitude of the force experienced by a 1.0 nC charge placed at the lmq1.7e oxmf, yocation of the test charge?

  Two point charges each have a 7n18jb3 s ;ofntaf lye xt.e9+value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the t.s9+3fby oa7 ;t1lxn8fetne jwo charges?

  A 5.0-mC charge is placed uyd v7y8:m2rbat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fielmydr 2u: vb8y7d at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 c+7o. zh dle2ome r5)9kino(hpm 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 two charges is the e n2ekh)ol(mzp .+doo h r57i9electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 andor.f k;b/b-db h 8.zno x = 0.20 m. What is the magnitude of the electric field at the point midway beo .fkhzb; b/odrn -b.8tween them?

  Three 3.0 mC charges are at the three corners of a sq4 a u,im8 rmli+ls6vur*e,zv :uare of side 0.50 m. The last corner is occupied m6uiu,*zvi l4s,+ rr: valem8by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are plar7 hhq syq/4t/ced at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3./s 7ht qhqyr4/0 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 j t.s)l-)z1lfl 6a8 l.tsesu iis placed in a uniform electric field. What is the s1 -l ts)t. sueizljll 8f6a.)magnitude of this electric field?

  A particle with a charge of 4.b4w(pf3 tujr/i s8*jo 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 7u p+yny h53*v sp;e)eyic qr2in an electric field of 6000 N/C pointing downward. What charge m7yc3ue;yn ivhse 2+* r5)yppqust be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g;9*b jud 7si:zbmc0d:s s0pwd carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravit b:*s d7p0smjusb; dc90dz:i wy. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What .go dv9+eyi k*xlr2t. is the magnitude of the electric field 5.0 cm from rd y9*.ox2 kg il.vte+the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Whsv4f/h;)dc. qbrskr 6, o uah(at is the electric field 6.0 orr)( kf/ushqds vab;4h 6,.ccm from the center of the sphere?