State the law of conservation ofvw.x6ihjqfj6 xw :+ n*y-/jn;y k dq4d electric charge.

  Is it possible for twoou .d8wnmi/jlo29 x 59p)wbzr3bb9a v negative charges to attract each other?

  Is it possible for a positive and a negjg-clb0 f 1kx)ative charge to attract each other?

  A glass rod is rubbed with u9wl7 u 5n5dx6ao h7rha piece of silk. During the process the glass rod acquires a positive charge aur5lou wn9hd6h xa7 75nd the silk

  A proton carries a

  The model of the atouotey9 zwg48tn1.ce 9m shows a

  A neutral atom always hae +hug)st;dw 9s

  An atom has more electrons than protons. T),9jllpnv9p 2f zt2qjs3aux 0 he atom is

  Materials in which the elt a)alf,/txrwt111hud r2gels *tt)*ectrons are bound very tightly to the nuclei are referred to tfl*se, tx)u1 gtd*r) h 1a 1lr/awtt2as

  Materials in which the electrons are bound very loosely to the nucl(f j3d. 49fy 5l,ejhjzuil(5r- o 8ojz skd*odei and can move about freely within the mat k5l 9djsd,ho (5 zr.uj z4j-yf8of(d*oil3ejerial are referred to as

  A negatively charged rod is br( codoep 5s6ws jjp77fp/ q:sj/,j mz*x w:z6iought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chargeoj j* wx:q6j ew6ppj5fo,zsc/7dzps(m7s / :id

  Sphere A carries a net positive charge, and spuoj8 ( r/t.nwlhere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whicwjnr.to( lu8 /h statement is correct?

  How can a negatively char kzhnvb6 d;81oged rod charge an electroscope positively?

  An originally neutral electroscope is brieflyu nrph/l/;z; p touched with a positively charged glass rod. Thep//;pulz nrh; electroscope

  An originally neutral electroslar uj2b,i me h81:mpqsfqi4w(/ )x7z2(s lnvcope is grounded briefly while a positively charged glass rod is held near it. After the glass r m 2ip z7xsb8unq/rmlv(2(e) 4a:ljfw hi1s,qod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves sep-y ws65i v*a35 vb5k lh4oxgfparate. Then a negative objecybp5-45gs x3ihl*aovfw k65v t is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. epwnz,8o7h hrbv-) 4 x A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutra - nw bp7),hrvh48xzoel 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 negative object. What is the final charge on each ball?

  Charge is

  What are the units of th;de*p.5t uqsne Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separate uhksdr) xn/o7 ht8c6,ln llajz().i)d by a distance d. The first charge is larger in magnitude than the second dl n8szi knlcxhu )6o.jar/,t(hl ))7charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near 7zz w6qyfcct l rj a:l8:a )r1;ds(y2ceach other on an insulated table. Which statement best describes the electrostatic force :j fysc71ratz(raz c)lqcw 8:;2d6 lybetween them?

  Two charged objects attract each other with a certain force. If the charges onzs 6q9+ )wwtzjx:ld l( both objects are doubled wit 9l 6z)qxw(:dtw+zsl jh no change in separation, the force between them

  Two charges are separated by a distance d and exer5)p uauzz:of (k0q pa:t mutual attractive forces of F on each other. If the charges are separated bpz 5ufko(:0 :paa)zquy a distance of d/3, what are the new mutual forces?

  Two charged objects attract each othe. 3vgt(i6mvzfz -r6ojf2x0xc r with 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 value? The force is nowm.2zc( i-rv36 fxotfx0v6 g zj equal to

  An electron and a proton 23)e0b )(hpgny ptx36rchrqc ot7sy 9are separated by a distance of 1.0 m. What happens to the magnitude of the forcq e3c 6gp9orpyht)2 xyrcbn3( )7t0she on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separat(/xgc wdgi, s)ed by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second el) ,g giwxd/s(cectron is placed next to the proton?

  An electron and a proton are separated by a distanc bhbvbg(b4fv 8jbo40 4e of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to tjbvb0h 8fbo(v4g b4 b4he proton?

  A point charge of +Q is placed at the center of a square. When a f*l. pz4j:cdkiv7 w7l second point charge of -Q is placed at one of the square's corners, it is observed that an electrostatic force of 2.0 *:d7ip.w7v4f zkc jll 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 placed at the ce 6tey7gz6bt)v ntroid 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 t)6ye vbt67zgthe center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vectbu 4m sj3l5zc kfv2nsx8giv/e1 lsyn)5n ;v51 or?

  At twice the distance f3qg5rq6b5c x-lqqrs6 g, llzz 2uqz ,6rom a point charge, the strength of the electric field

  Is it possible to have a zero electrin yd hh*ckckba;;e*m - 44 3q-ks uqsyd:6do-yc field value between a negative and positiv* y:;sc6*yey-d kbkou 44km-q ;qadds-hc3 nhe charge along the line joining the two charges?

  Is it possible to have a zero electric field value between2p m 0va nvgu*s0 vpa6+gh9-ft two positive charges along the line joining g-mag2pns+*h0v9 v uav6p f0tthe two charges?

  Electric field lines near psitive point char+wuas-l2vg94u9 7 o vzdexq2 kges

  The electric field shown rike z/n gv+03

  Can electric field lines intersect in free s+mb l5iz;4 5vyldgwoj . g(hi(pace?

  A solid block of metal in elect dnejy;4dqeme1ls7)8 - f-grhrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electriq1f;- rj sm-leye8nh47dde) gc field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are ea7rsfit *u z,-jch given the same charge, the electric field (E) midway between the center and the surr *7jzu ,-fsitface is

  A cubic block of aluminum rests on a wooden table in a region whbi;s9)h )d0syb afyl, ere a uniform electric field is directed straigh,ly9ssia fb hb0;d))y t upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equsicf+;2 pho-l ilibrium near an electric charge

  A positive point charge is enclosed in a hol i,,uw.stqs2e low metallic sphere that is grounded. As compa2t.i,s wuqe,s red to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conduct+;a vltd;p*z k 7cw2zc1rlzx:ors in static equilibrium.

State Gauss's law.

  The charge carried by one electrs o- p-6iud5 n*rchuf:*x ahs8on 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 f)f10vt wm0k favy7;o protons than electrons does this piece of plastic have?v7fwy0 ; fmtk)0foav 1

  What is the charge on 1 kg of fp. zx0 *dk l; **buv/nvod-hnprotons?

  An atomic nucleus has a chaqy 3d1d i07mddrge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1mivbny+y(-vk..a y* 0wsr1hcc wg, d:.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betwedb+1.rgyvy,h-*.cw( knsiycwav:m 0 en them?

  A 1.0-C charge is 15 m from a second charge, and the force between the ylc7cdrsn:0z)kpc1gpy39- 2vzan7u7ah .him is 1.0 N. What is the magniu: zi-2ly).np0karg7h s 1 cz7pdcvycn3h 7a 9tude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Ho .03c pz.xr :ls/cggjij.l7oo b-c-rbw far apart are they?

  The force between a v0w4( ,y xwrhy(f yw/t$30 \; mC$ 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. If the h)q a9n1/dyl riupu+-y are m1/qpy9 u-lhi )ndr a+uoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0;ou 2.:7 t/ft jw5qedet faqm/ mC are 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 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge atutoedf:wm2/5;j. 7/q ef tqa t the origin?

  Three point charges are placed on the x-axis. A charge- -38*yq,gk q im,g2 hsfwqmfq of +2.0 mC is placed at the origi*s3g8m ymk h,qfq -wi,2 fq-gqn, -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 ar: e) aqv i.a+1tpvbdw:e located 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 the magnitude of the force o +v p a:1wbtedv:a)iq.n the 3.00-mC charge?

  A point charge of +Q is placed at the.4 sw1a8cstl o center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostaticloa.s1cw4 8 st 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, 0); Q2 = -1.0 nC is at (0, 0.10 uv 9m9m r5*c (x.gqtwg)a9 oqbm); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC c)9 b9w*( vao5mqgxtq u9rc.mgharge?

  Q1 = 6.0 nC is at (0.30 m, grkw 3 b58 l1yr-3ynzv0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at 3 yg5yrwkzlnr b-v3 81(0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed atovj,n;to;+88smkzf*:8xmczm :d szh the vertices of an equilateral triangle which measures 30 cm on a side. Whah8zoj*z vd:nzktm ,:x;m sm o s8+c8f;t is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which t ;8a woa)*8 hakl 7se-htgj;xare separated by 3.0 m. At what point, on a line between the two charges, would it 7; a htwsg8xkh leaa* 8;ojt-)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 w,8p1yn :atvo+k6dq 8t+ po mvq6-o kkthe origin and a +9.0-C charge is at x = 4.0 m. Where on theqo n +8qk6 p to1mdka:vw+o6k8,ytpv- x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the orige l /nsrz2 36+jcoxaou4;cob7in and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zerz la nxe 7/;4ruc+b632jsocooo?

  A copper penny has a mass of 3.0 g. A tp2t 4kf+r4o bt32jo-xtm r 4hcotal 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 cub/9 mmpyumo+s)y: * by the attraction of a fixed proton some distance 9 uomc mb:uy*+/)ypmsabove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads pgng(zzcy-*e:sc5 0awhich are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle bet5 n zy a(-csezgc*:g0pween the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What 6*pimp2uhyaf/0bd(h is the magnitude of the electric field at a distance p2y*h/( mip6uh0bad fof 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fieswaidsa (0+ucv /8 p1vuy5o,w c,n g)wld at a distance of 1.50 m from a 50.0-n,psn,iu(v 8 wd0 +w wyg/ao5cscvu1a) C charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ofo f7p : wh5tgrv5+b;yt the electric field at the location oot 5t7:wv fpr yb;+h5gf the test charge?

  A 5.0-C charge is 10 m c8 jg15x4g +gnj/ojq pfrom a small test charge. What is the direction of the electripjqg+ j1x g8j gc5o/n4c field?

  A 5.0-C charge is 10 m from a small test cha)t:gyfw9y1w.s 9 b )meq(ylxarge. What is the magnitude of the force experil:w9 (yfay)wy egs x)m 1.t9qbenced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C axaoln + r4nikaj1g5;2nd are separated by a distance of 4.0 m. What is the elegx512ra +aol;n j kni4ctric field at a point midway between the two charges?

  A 5.0-mC charge is placed at t,5p+mlx sto+ a(hewj, he 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the+ e+o5mw,,alx ptsh(j 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chas8 o)j04graea f .me:trge is placed at the 50 cm mark. At what point on a line 4 js:e. tm0aoe8 rgfa)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 and x = 0.jhl 2iyzf :ey -t17gh720 m. What is the magnitude of the electri:fe j -t y7glhyh127izc field at the point midway between them?

  Three 3.0 mC charges are at9v17oqubf 5-l6 ccz lk 0i9yqt the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric ft 9 f -vl61oi5lckuqb7zc9yq0 ield at the center of the square.

  Consider a square which is 1.5qo-vosv d f4h4b7 hy20 m on a side. Charges 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, 1vs o- v424yf7do5hqhb ). 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 p rd -(+2 jfc0+vbjf,l, xg (aqjeq8wcclaced in a uniform electric field. Wbla8wjjcqg2c0+ev f r q,+, (-f jxdc(hat is the magnitude of this electric field?

  A particle with a charge of 4.0 m99/1 vkdz vxlhC 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 iye/vb -5/2sye c h:ei)ea3vxfn an electric field of 6000 N/C pointing downward. What charge must be placed on the b5h eebc isv3f-ve/ )2:e/ayyxall for it to be suspended?

  A foam ball of mass 0.150 g carries pa1q1m+p;xm ea charge of -2.00 nC. The ball is placed inside a un+p1ex m1m p;qaiform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 1 lh:lru7zf;uq23lg mzo *sj750 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surfacefllm:5*jh 7 ;zl quzu2r73g so?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is thw*xm m00i .:;zummh(vt8) z 5wwoka oie electric field 6.0 cm from the center of 8um:a)x mzi(0m *m5wv. owko0 wt;i zhthe sphere?