State the law of conservation of electric charge.-j*a +y:n4 ye/hzokmr

  Is it possible for two negative charges to attrac;1wl f 6qu /xhq p,g7sfq5ke4pt each other?

  Is it possible for a positive and a negative charge to attract each other?sdx5cq() 7ehr

  A glass rod is rubbed with a piece of silk. During t6uj9b7ueu 8 ievut4d,he process the glass rod acquir ,96jeu4u8etiudu7 bves a positive charge and the silk

  A proton carries a

  The model of the atom shows c3-5fgqc l3e8vj x+nl a

  A neutral atom always hax/cp x t oj4:h2ltkm+9s

  An atom has more electrons than protons. The atom lj+bb v :2 8io+qavj8ois

  Materials in which the electrons are bound very tightly to u h-4thw 0kptbm g5z+ k5g..rnthe nuclei are referredmgkgzhu0p+ .twtr h4-kn 5b 5. to as

  Materials in which the electrons are bound very loosdg9t(4cu a fveyyj3 nn12sa* me -i2s4ely to the nuclei and can move about freely within the mn m2e fy1e n-d(c s*9sgit4uaa j34v2yaterial are referred to as

  A negatively charged rod is brought near one end of an uncharso((ue/d.1 ipv is+j;yyqq e+ged metal bar. The end of the ms.iu+ syqjp qy(eeo+d1/;i v(etal bar farthest from the charged rod will be charged

  Sphere A carries a net positive c*)p r:u3 qhjh is6fyo7 )(pcuifa39h nharge, and sphere B is neutral. They are placed near each other on an insulated table. 3hy (9h63i7op)p u jurq:h fi)*sancfSphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an 6cia 80bpdz r9c) io,relectroscope positively?

  An originally neutral electroscope is briefly touched with a n4;fmnxg ti1, positively charged glass rod. The ele1n;fnmgx,t4 ictroscope

  An originally neutral electroscope is grounded briefly while a positively charj st(7;idmrw. h)sc6 7wc;ccvged glass rod is held near it. After twdc. ct ) sw7r7;c6(;sj hcmivhe glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the ucb uv,/v. 4releaves separate. Then a negativru, uv.ce4v/ be object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an i ht/0;+gdoc ;:n:+q jdjp c9wiwdy9rknsulated 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 nen9j +cd;;qdi:p+hwyco0kdgr 9 t j /w:gative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb cou8igff- tn7wr 0 0k+ 7j0xxsianstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firs-5c2wneupi): m hth*k t charge is larger in magnitude h -) up*ci emh2w:tnk5than the second charge.

  Sphere A carries a net charge and sphere B is xgyzu ooge2+ ,kwets :ya4.y5t,2yt8 neutral. They are placed near each other on an insulated table. Which statement best describes the elt2t5styy,g4w g2 +y.:eaoxze you, k8ectrostatic force between them?

  Two charged objects att,x x yp+z9swy:ract each other with a certain force. If the charges on both objects are doubled with no change in separationy:, wys 9zxp+x, the force between them

  Two charges are separated by a distance d and exert m6k a q,1sccjqhcew3w9x b0)1kutual attractive forces of F01cqe1,k6h s) qwbk9 3acwxjc on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other8.;bye,;qnjzfc fa m a*5aq9j with a force F. What happens to the force between tjq.9na;mjaa8 yz c* ef,fq5b;hem 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 to

  An electron and a proton are separated by a distance of 1.0qu8adw)x 5 hd) m. What happens to the magnitude of the force on the pr) au8dq) wd5hxoton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happe4u p7 voyb9id3)oobb-dno o/.ns to the magnitude of t-b/ d94ibooovob7 p.dnuo)3yhe force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated bfe;5o7g i3p bkela-)ly a distance of 1.0 m. What happens to the size ok b)e-f;o7 alegpl35if 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. Whenngyd rlnqd9g; g(1x.(. mn 3md 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 (ngq .mnnxd.l(3;9g1m g rddy 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 placed at the centroid of an equilp jisi9 rn/xz22zs 2b9pz 8w:eateral 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 forcnzi / zpi9zs :2r92pbe8s2wjxe 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 zaruh-hv:4in +g r t1,mty1s/ vector?

  At twice the distance from a point charge, nh;p wx22poj)ro uw .1the strength of the electric field

  Is it possible to have a zero electric fie-59w qyj)wf held value between a negative and positive charge along the line joining the two chareq h5wjfw y)-9ges?

  Is it possible to have a zero electric field value between vmh; s, y 3vtn7(lkemkf71wn/k/t 1 yrtwo positive charges along the line joining the two charges?,evm1/l 7 nt n/mtys;w3y(khvfrk1k7

  Electric field lines near gyvsrk 4r8 8e0psitive point charges

  The electric field s0)hfqew1 2a r;k ;brs/ tmdma:9r 1c6uz. fahchown

  Can electric field lines intersect in ofz5v+.)g -xv/ygz jf free space?

  A solid block of metal in electrostatic equen+6vd 3m1pm hq7- wzuilibrium is placed in a uniform electric field. Give a statement concerni37mvznu- +m ew q6pdh1ng the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eq7 hkr- nced)4ij2mzv k82sd6wia dmvd+l25 +ach given the same chamksdc+)nr6 +q8 wva4dizd5 h7d2km-2 ie 2vljrge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum 8vppp1 c-s2ghrests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge oh2-cg s8p1pvp n the block's top surface?

  If a conductor is in electrosta5z 1jfype3n1 stic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sxzidl,a gbwcb+n 6 f4)n o*9,cphere that is grounded. As lna)9b+c* o gi, dznbfw,4c6 xcompared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in staticetjwlpn.5o;( e1x,hckcg 63 y equilibrium.

State Gauss's law.

  The charge carried by one elerqs8)c9(v q5xctyp mc5ftj-4 ctron 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 p mwe;rrd2nt la +qc 14/b;xs)zrotons than electrons does this piece of plast1/;r;m2 c xrln4 a+btqzdes w)ic have?

  What is the charge on 1 k4dq)uh z81sp sg of protons?

  An atomic nucleus has a charge ofx,4; edhzn8he pmh dni.( hc*/ $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cmh n1sxc55m c1zle;h)ncwyk wu7 o6)w), have charge values of 2.0 and -4.0 mC, respectively. What is the );e5h)w6x17y sknn uw lmco z1)h 5wccmagnitude of the electric force between them?

  A 1.0-C charge is 15 m from a seconl bc :1(elyu7kd charge, and the force between them is 1.0 N bu1:yk(llec 7. What is the magnitude of the second charge?

  Two 1.0-C charges have a force between t*hapy/4wy6f j+aa4dffs(xy g3jm; h. hem of 1.0 N. How far apart are they?

  The force between a rw rrz 2dqn41qr;)a: m$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initial a rtc7gxt1ft-g1 0 fi/7jn4ixly 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what jaf1 4xxg0rif -it /t ng177ctis the electric force between them?

  Three identical point cged 2hctcf+c7kc7jm: 8+:ey a sa+ez-harges of 2.0 mC are placed on the x-axis. The first charge yk+2-8 f:e7 : cea7d ctch+jmaegz+scis 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 origin?

  Three point charges are placed on the x-ar5) ic9w zt0tebhs;j1xis. 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 rbt0i)1zhsc w 9 5ej;tmark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positi-ka2eji,sos 1ons: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC a12j-kseo, a ist 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, and a second polja x(q8j2:na ow6u+0h pg.qfint 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 magng xoun(l :0qj6q2j w+hpaf8a. itude 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, 0); Q2 = -1.0 nC is at 42qvqfsc:f:0z3 cf7 u9b vpwf(0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude fufcz 30ffqwv9 v sp :4qc:b27of 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 (0, 0m:dw r wm.a0i;5bl,blr.u1l f .10 m); Q3 = 5.0 nC is at (0, 0). What is the direction:muf.db5lw ,0rm.l lra wb;i 1 of the net force on the 5.0 nC charge?

  Three identical chargefsdnsemw . spf13)m. (s of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is th m1s p.fm3fs(n. )ewdse magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whofgz 9;r+wel+vv k w;r. ,e2spql;k(fat point, on a line between the two chfvq g ps9ekvr(e w;;+zk,w2+ fr ol.l;arges, 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 oo /2 hjt.kcqo)rigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a tq.hktjo2) c o/hird charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pr16feq e nps8/ db)lk6laced at x = 2a. Where can a third positive charge +q be placed so that the force on it is zfd6en 1rl68psq )bek/ero?

  A copper penny has a mass of 3.0 g. A total ofc,r, g o +(b7khrcnywr85j;j; gdy5u k $4.0 \times 10^{12} \; electrons$ 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 aglxj4*in/ss ,fayf(,f ainst the force of gravity by the attraction of a fixed proton some distance above it. How far above the electr i ,l(f,fynss4/fj*axon is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductimgcmsxg30s) 4. fn(h ing threads which are 30n(mh g4 0s.) cmx3sfgi cm long. 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 has en 2zo;9ujog;s(f j22np0 ebya charge of +40e. What is the magnitude of the electric field at a distanc2 jnyzsoe9ube;nf 22 ;j0ogp (e of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distan p 2a5vop6-grhce of 1.50 m from a 50.0-nC5p hv-gorp62a charge?

  A 5.0-C charge is 10 m from a small test chab/:dd o+wogfc*f(8mj g 8/gc33iepg srge. What is the magnitude of the electric field at the location of the test d eo/8 f c(+id3*ogggp/m3gfwb8j :sc charge?

  A 5.0-C charge is 10 m from a small test charge. What ak,6k .d kwy:igo 2t;wis the direction of the electric fieldygit,w:;w . ko62kda k?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitud0pbx5n9 .sqa qz ,iw9te of the force experienced by a 1.0 nC charge placed at the location of the t9s0 qz 9xb.a5wpnti ,qest charge?

  Two point charges each have a value of 3.0 C and are stf :)-mg2ca3kf aol l1eparated by a distance of 4.0 m. What is the electric field at a point midway between the two cha- lfotg3)a :l21kf acmrges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.05 .h ,f,dsnxjx mC charge is placed at the 50 cm mark. What is the electric field at the , dxx,.nhjsf5 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm marw)08yk, s*cnj/b,i8r*r ) nl ki du+j9vfcsd rk 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*)r *rb, j 8uyn)wsr+isdld i9ckcfk,v 8j0/n charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0ltj7l2x73 i hwn 97dmz1dv hfhu1/ v,q.20 m. What is the magnitude of the electric field at the point midway between tn3 uwdj1t fhv1mzlhiq 72v9d7/ 7,hxlhem?

  Three 3.0 mC charges are at the three cornwa; 5i0go zj,6ueu5mners 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 omu5gn0ju z;5i , 6eoawf the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners2.h-*d3m urht8jjw 4me1d t9 iriblo5utn w5 + 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 magnitude of the electric field at the*dt+ wjjn5od.8t wmhmi5tubrilu 24r1 h3e 9- square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uj.nny nds-2tx h/14 kjniform electric field. Whad hkjj/n x2t n-ys4.1nt is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hf0j) +qfwv)vzas 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 su,e91-ma)6 sogigvr field of 6000 N/C pointing downward. Whg6vs-a9eso,)u m r1 igat charge must be placed on the ball for it to be suspended?

  A foam ball of mass )tv7psad.5 io0.150 g carries 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 electric fielid) pta .5vo7sd?

  A metal sphere of radius 10 cm carries a charge of*jp b93it-d nv;wvyv f4nqr ;0 +2.0 mC. What is the magnitudrv;*n 3y;-n9b0 qtvv4wfd pi je of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chaap bc/u*w3 h8qrge of 3.0 mC. What is the electric field 6.0 cuab/ph3q cw *8m from the center of the sphere?