State the law of conservatiqqx /,hx ::dkpon of electric charge.

  Is it possible for two negative char f-s8n 5gcmx2w8m0 zrdges to attract each other?

  Is it possible for a positive and a gl6eeev5n zz n01 nt4e( j68lhnegative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During thz q ;c8zi+ln4oe process the glass rod acquires a positive charge anzonq l; +i48czd the silk

  A proton carries a

  The model of the atom sjzvh0a(t9wfk 7wy 5j ztnw:.3hows a

  A neutral atom always hj :nuww 0))tndas

  An atom has more electrons than protons. The u).x k0(t qgus- lg)chatom is

  Materials in which the electrons are bound very tightly toosjn14s qrq. x0* r-o0d,l4er.( fqm2bjlvip the nuclei are referred to jivxb0 4rdp f lols. *,s(qjm1q2re 4n.ro-0q as

  Materials in which the wwcmqjeg , r6:5la..f electrons are bound very loosely to the nuclei and can move about freely .m raqjw. :,fle5 6wcgwithin the material are referred to as

  A negatively charged rod is brought near one end of arbj28. 3qft7ek- - yd bs)h+gdv ny)jtn uncharged metal bar. The end of the metal bar farthest from the charged rod will be charged.qtt-d2 g-f3v7d+ jy jn)e s)khbryb8

  Sphere A carries a net positive charge, and sphere B is neutral. They area) o(utya b2 )1adrm9k placed near each other on an insulated table. Sphere B is o)a(rua)ykd21atmb 9 briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge ap2. i(ur3jjvwn electroscope positively?

  An originally neutral electroscopex l+v5kyzv(t,l u,yx0 is briefly touched with a positively charged glass rod. The electrosl( uy5+,xzvx klv,y0 tcope

  An originally neutral electroscope is grounded briefly while a pos mm7w8+vhs v ,bu1qes1itively charged glass rod is held near it. After the gla heqv1mwms+ ubs7 1,8vss rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves s . a/kq pchb:-ceocpxoez4n+dz1 11s) eparate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leavez4oe-c qz.p:ebk s +/cnh)11pao 1 cdxs?

  A large negatively charged object is+ezw-3k5jw7vq 7d urgfy- f :n placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metal-dyvg fu75+ -kw:je3w frqz7nlic 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 the Coulomb covj 5).rogn,ox hke2q,nstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fietbkzawd 4/p0s4lz0vhr1k:gs6 o *p4xr a t*7rst charge is larger in magnit sagzra0 * 4ep4dks1vw/:xk*rp7o b h0t46lztude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near epna ;. s ijh 5nmq:7 jdyr(lw.3sz 8cc91x9dtoach other on an insulated table. Which statement best describes the; 5q1 iyxhazp t.3l8s.7 9:c9c ojwns r(dndmj electrostatic force between them?

  Two charged objects attract each other with a certain force0xhwv*vk ozn 9l 7by3-ml4pe1. If the charges on both objects are doubled with no change in separation, the forvy-4l1vl*7nh3o e9 mp0 xzwkb ce between them

  Two charges are separated by a distance d and 86zhak hg 9t(dexert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, whdg (ka6z9hh8tat are the new mutual forces?

  Two charged objects attract each other with a force F. Whatg.v3u rj.m1ek my)6my/ gogo/ 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 orig. .rm3/ y1mu)jv6yo/ omgkgeginal value? The force is now equal to

  An electron and a proton are separated by a disp 1;*gl-kw nlutance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placplk*uw; g1n-led next to the first electron?

  An electron and a proton are separdac531 eu*xha ated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placede c hu35aa*x1d next to the proton?

  An electron and a proton are separated by aael eqzlj99bo uz(,*+ distance of 1.0 m. What happens to the siljzl+(* qzaoeu9be ,9 ze of 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 pp33,o2ai u j+vogu s1a square. When a second point charge of -Q is placed at one of the square's corners, it jvu, u13g 32pi opoa+sis 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 placed at the cent, 8cgwpyg /olqgyz b o*o)7;s9roid 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 third chargew;o9bg/osl8zy 7ocqyp),g *g of +Q placed at one of the other vertices?

  Which of the following isoiu:/rzl5whn((vy m 6 not a vector?

  At twice the distance from a point charge, the strength of the elect4-z f72tytn ca+j/duzric field

  Is it possible to have a zero electric fie4brnr-0 zxfq-j4 xve+ld value between a negative and positiv+ 4q -xe-xvnrz 4fbrj0e charge along the line joining the two charges?

  Is it possible to have a zero electricm ertcwg*g )6wq4 s31p field value between two positive charges along the) 6*1tgc reswm 43pwgq line joining the two charges?

  Electric field lines near psitive point charg9ahg )jatqh+:1fqe4 p(aco0 bsaw37 ues

  The electric field swr9 *3 jtt*bathown

  Can electric field lines intersect in free space?qxv-.m02q9mkw q m2bu

  A solid block of metal in electrostatic equilibrium is placed in a unifndi5+ovyp q48rag;sg9 e2 f2 h+kujy+orm electric field.q5 ;2ehv+gj ik8opsr+y+yn 2fa4u9gd Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollo:* 0:dj3gi9v3 picsgyqf xyh5 w metal sphere of equal diameters are each givenx h:idj*gs:i05vq33y yfgc 9p the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of alum( qf7r;e/ 5le e3hhmlqinum rests on a wooden table in a region where a uniform electric field is directed straight upward. Wh;/ml eq(3 qle5rhhf 7eat can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chat0a) af d5yy64nrv,w wrge

  A positive point charge is enclosed in a hollow metallic sphere that is ground8,ww34yvy m-lvos qdm hg)65kjw qt83ed. As compared to the case without the holloyql5o , jhwmwsv8dm-k8 t4yw36vqg) 3w sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors i 19vpks: nxnlvku8e9l1je* 7y9t 5uhqn static equilibrium.

State Gauss's law.

  The charge carried by one elspri1oa hl 1eu(t-35n ectron 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 mgsp htaa;zu;y;s y,u a1c,d,0ok; 7lbany more protons than electrons does t;,t ,u,7yd sgz0hau;;kybla ;p as c1ohis piece of plastic have?

  What is the charge on 1 kpl cw7rci*dm y+4(es6g of protons?

  An atomic nucleus has a charsx22izmckfmy ;y,m 6.of p:xn.)sf q)ge 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 ofo ne ooq-i(q0:li-i, c 2.0 and -4.0 mC, respectively. What is the magnitude of the electric forcenoc 0:( iiqeq-loi-,o between them?

  A 1.0-C charge is 15 m frg* w fru+5osed 0n:;ccom a second charge, and the force between them is 1.0 N. What is t g0d+n wcsfu; *c5:roehe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far vav. qkm694tkgq 3a,h ghrw:,apart are they?

  The force between a r4k3p r4dr8y+ h*bxcoxh. ( iz$30 \; mC$ 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 theyorpo1t m+lipgq * x7 ;hw5k738f2uecz are moved to a new separation of 8.0 cm, what is 32cuekoh17 *ftqr;wmi7 g l8+x5zp opthe electric force between them?

  Three identical point ch7ekz g5n w o/-+ puz;fq;ls0mwarges of 2.0 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 qf5- z+zl0;s onewgu; kp7/ mwcm 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-axis. A charge of +2.0 mC isl0ocyi:; x h x97xlq+m placed at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC ocy+l: mx9 iq0xl7; hxat 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 located at the following positions: Q1 1kj 3p0ye pcmos5+jeh5ja29o = 2.00 mC at x = 1.00 m; 9 sjpo5eh j25jec3yo+0mk1p aQ2 = 3.00 mC at 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 sec(vx8a/ bnpqw9botg , /ond point charge of -Qtw bbp ,/ngvqo8x9 /a( 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 m, 0); Q2 = -1.0 nCb3fa6 oynhn ..2;kyyvoe6(ct is at (0, 0.10 m); Q3 = 5.0 nC is atn b3yt.26 avfy6n.ko;(yoe ch (0, 0). 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 (0, 0.10 m); Q3 = 5.0 nC is att* ps:p tl6+twg+3mrf (0, 0). Whatrgt:ptp3fs * wm +l6t+ is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mCb 3d)cqu 9 nmwowwq uc(2;;m5l are placed at the vertices of an equilateral triangle which measures 30 cm on 3 w ;( b5uumlm9coc; w2)dqqwna side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated lk/f3(t(ffc2h,mfxd/g if ks 0 zfi4/ by 3.0 m. At what point, on a line between the two charges, would it be possiblhxfk z 4m/flc i,fd/3s f(ft(g fk/i02e 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 and a +9.0-C charge is at x = 4.0 m.ndmyizxpw l)j6utv;72f* z0) Where on the x-axis can a third charge be placed so the net forc) z6p)jnv;tydufwl 2 *i0x7zme on it is zero?

  Charge +2q is placed at the origin and charge -q is plk hp4i.y/ *tv sxi:dlyn6i dq6)7d 6qdaced at x = 2a. Where can a third positive chardqii 4s6 y7dtd h ivy6p*d kl.6x/)n:qge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tota 3j1dwwb.9cyh l 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 thef n8q:6agtek5,g2 g sr attraction of a fixed proton some distance above it. : t6qe,r8g2ka sgfg5nHow far above the electron is the proton?

  Two 0.20-g metal spheres are hung frh- 8tz)rru9q4n7oxt: pjyte2 om a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces th ne4rt tz9q:x opt-2y)7hr8juem 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. What is the mh/*ru-76qcvq)b tuf magnitude of the electric field at a m7)f b*h/vuqq 6c-rut distance of 1.0 m from the nucleus?

  What are the magnitude and dir ezqp5y 4d*dwl*tf0x a4 fl29dection of the electric field at a distance of 1.50 m from a *zp0q4tye 9 dfw f4d2*xadll550.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge niy7v,y5uz59mo 9e( xyxf2fxla 7)xj. What is the magnitude of the ele,i5u7lm(59y xz97o2x fxajeynvyx f ) ctric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directipdw q)9yga c 3m:)4ooson of the electric fie)smy 4cpo3a9w):qdgo ld?

  A 5.0-C charge is 10 m from ao2we 0s/ f.ig213mjbs tfz4jb: tf rx6 small test charge. What is the magnitude of the f /otge t mf3ijf.2:1zjxw0b s4fr6b 2sorce experienced 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 and are sepah; .fk7gmei1q2 ,xqox(l ebv )rated by a distance of 4.0 m. What is the electric field at a point midway between th qfxbv2q m)7e1e,kx i(.o;glhe two charges?

  A 5.0-mC charge is placed at the 0 cm maril)*a+mxmi -q 8c-3 jc xhn* s31svld7lkrp9jk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elec* lni7x lscdj3c1q9x- jl-3)m*8 rmva+i hpsktric field at the 30 cm mark?

  A 5.0-mC charge is placea.2l b)k9 wy n4;ljpzwd 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 li4b; n 2)w9wla.jp kylzne joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0hc2) z4vt4x7:(vfqo-o al,swy 6huqv and x = 0.20 m. What is the magnitude of the electric field at the point midway between th6lo qyc4hsv 7vt vzqow)(2:ux4hfa, -em?

  Three 3.0 mC charges are at the three corb u0fy53qr 4;s +wbaieners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thesw0ub+ fr5b a4iqy; e3 electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Cq fk3(k(jsdr +harges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); d+j(qsr kk3 f(+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 iu;yw/x(c3 yq3;hph n v6g1tt when it is placed in a uniform electric field. What is the magnitude of this electric fihpgivnu(t;3 h y/1 q;yxt6 3cweld?

  A particle with a charge of 4.0 mC hasuiey,e c+, dyxs/bm12x ii1 n8 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 N/C p vb8m :r2fb59vxfy qu 04;/k1npkckpze7+pthointing downward. What charge must be placed on the ball for it to be s:fnf74uhb2 /cxpk9re10 b58ypkzm;vk+qt vpuspended?

  A foam ball of mass 0.15xh++fu5ipv nek;zl scedui( 0 p1+wtu*0 3z5y0 g carries a charge of -2.00 nC. The ball is placed inside a uniform elec 3iswezpu(;+1n 0e d0k i5chlt+xpy+*vuz5 uftric field, and is suspended against the force of gravity. 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 is the ma *-/4itsmy bppnp0jx7/p kkli.jpfown 7)7)tgnitudo)-fpm pljjki *p7/7 x0n4t)k7 n.wt ysibpp/e of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.kppp5 / 5vxbo:ez x4q17m6lyw0 mC. What is the electric field 6.0 cm from yq kopbl74p5:/px 65vwe1zmx the center of the sphere?