State the law of conservathguh/2mpv5w2 k y; 78qc+atjdion of electric charge.

  Is it possible for two negative charges to attract u kfjr)t,n-jte7(y5 aeach other?

  Is it possible for a posl ,2g/n czm or*yps.ie9lcl4)itive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During thm;zqlvxi8 2gcx po0*1 35 ofwye process the glass rod acquires a 2oy w50z1;f8pim qxvg3x lc*opositive charge and the silk

  A proton carries a

  The model of the atom sh2.(81l,oyb jojm gz nxows a

  A neutral atom always has r gwh(yz3f3n+

  An atom has more electrons than protonsl kcg w;(l9jorwl+86lbos/x6s fa, ,n. The atom is

  Materials in which the electrons are bound*fo;ewujc q2n vqf1( d)r/4u j9 v/fts very tightly to the nuclei are referreu /rv4c 2f9*nqov1t)s ; w/qjef(ujfdd to as

  Materials in which the electrons ard/j y/mkb2ad, e bound very loosely to the nuclei and can move about freely withi ad ,j2mdk/yb/n the material are referred to as

  A negatively charged rod is brought near one end of an uncharg2 qdc+i,iw5 c ;nuhv-ad3a yv5ed metal bar. The end of theddnc ;v5iu-y, +qv3w 5 aai2hc metal bar farthest from the charged rod will be charged

  Sphere A carries a net positi4p z)6xr.twvl(r rzl8ve charge, and 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. Which 8t)r6vp(z l zr4 xrlw.statement is correct?

  How can a negatively ch8s opj36-07xnx1uzsjms bj9t r)dn * darged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a pr u6 vjy-c/(hv)yg gv7ositively charged glass rod. T/vcj -gyv(v)76r gh uyhe electroscope

  An originally neutral electroscope is grounded breg jd q9crxp:h +)h(0yiefly while a positively charged glass rod is held near it. After the glass rod is rq 0:)g(jdhr c+ hyx9peemoved, the electroscope

  A positive object touches a neutr*u3r-g u4iem ual electroscope, and the leaves separate. Then a negative object is brought near the elem-4r uu *eig3uctroscope, but does not touch it. What happens to the leaves?

  A large negatively cdjbd8mh99w) z+1nqcz8 )ao pwharged 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 negative object. d)np8z)b coq+ 8 a9j9 dhmz1ww What is the final charge on each ball?

  Charge is

  What are the units of the p i.thod;f8 vwsx4 dv39*pdz3Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first char *lkn2i1w p2tgx g,5;) vyobrmd t4a7vge is larger in magnitudmdrn2*tvvo,byx1 5w7ai;gl2 )gtpk 4e than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed n 9*n.vhnto)i year each other on an insulated table. Which statement best describes the electrostatic force between thn )oyhnit.v9* em?

  Two charged objects attract each othegqd77,r-d cujx7w:hfk3qa: tr with a certain force. If the charges on both objects are doubled with no change in separation, thewjd- xrq7g h7k::qf3,ud 7cat force between them

  Two charges are separated by a distance d and exert mutual atytyhbiksr,m5 q s7 5)rm+. 27hc fpu:mtractive forces of F on each other. If the charges are separatem.5qs7mti k, bymr5h)pyh+c:r 2s 7ufd by a distance of d/3, what are the new mutual forces?

  Two charged objects attrwn i5:( zkit-uact each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled,- wi5(: tuzkni 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.h ws*7 xg2p.kghelr )6 What happens to the magnitude of the force on the protgph7.2r x )kg h6sel*won if a second electron is placed next to the first electron?

  An electron and a proton1iq- zn/ef dya 63uf5v are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is place13fnufqza i6- e y5dv/d next to the proton?

  An electron and a proton are separated by a w o ,/8d(b9 odk6dpgcwdistance of 1.0 m. What happens to the size of the force on the proton if t8dcbo6(odpdw, g 9k/whe electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the centermg7c f y2asu)ndnmr2f9*h +3 r 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 of the square. What is thgn2d myn97ashm+*c )u32rf rfe 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 equilateral tria;juar.yfv z (+z+h.it ngle. When a second charge of +Q is placed at one of the triangle's vertices, an v+(.jzh+.z tyfir;a uelectrostatic 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 charge of +Q placed at one of the other vertices?

  Which of the following is not a vh)sf8grxl-9s bmy gf:,l,6 plector?

  At twice the distance from a .tcc q(2h zc6zpoint charge, the strength of the electric field

  Is it possible to have a zero electj/oh z6; kp0azric field value between a negative and positive charge along the line joining th6/a p hkz;oj0ze two charges?

  Is it possible to have a zero electric field value betw;o bvjnr0:3zreen two positive charges alo:rbz r;nvoj30ng the line joining the two charges?

  Electric field lines near psitive point charg*hl43doy*vi:. w lcvjes

  The electric field showa:fwsz 4 (m6ocn

  Can electric field lines intersect in free space?.bpz/mtk:i:g - nu70 x.urpjti-0xrb ,tey. u

  A solid block of metal in electrostatic equilibrium is pueyy w0)azbu7j,fw6p p6*p+ sjb8+ gxlaced in a uniform electr6)y*+ gesjyb w6pp jx,a8+ u7u bpw0zfic field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal8/admyljqd odx*grb0; 7,. gv diameters are each given the same charge, the electric field (E) mijy rg8,bxod*dgm0.l;q v/ a7d dway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifoq yufpg(i9(p z:4 t55ob a/iclrm electric field is directed straight upward. What can be said concerning the charge on the blockplf:( 5 uq/ybp54(a9cogt zii 's top surface?

  If a conductor is in electrostatic eh sgd4md+.ru 0quilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere ggwhd6*1hwb 1 p dfpd83y+ ic2that is grounded. As compared to the case without the hollow sphere, the electric fip2i d 1*dfyb6wh1c d+hgw38pg eld at a point directly above the hollow sphere has

State three properties of conductors in stati521;vc3: m1dswc;+ b z)y ly:eg9kfysjzpdba c equilibrium.

State Gauss's law.

  The charge carried by one enokst1 :5 m0lllectron 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 protons thaer m( m biqla-uw1;5-pn electrons does this piece of plaeqbm iw(-amlpr5- ;u1stic have?

  What is the charge oie 2flgmhz4 00n 1 kg of protons?

  An atomic nucleus has a chargh0mn -3mp sdr)e 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 of 2.0 and -4.0 mCuq .5 uzn24jaufn ;c*n, respectively. What inc u.zu4j;qfun 2 5a*ns the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chargerdly47(m-9ahi 4 r ajg, and the force between them is 1.0 N. r a- l7 yjia94h4rgdm(What is the magnitude of the second charge?

  Two 1.0-C charges have a force bet nknvo3k- f )725ehklnween them of 1.0 N. How far apart are they?

  The force between a ue, * )kz*s+uy-2ky 9tviuywa $30 \; mC$ 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 fyy r a)9,voht/orce. If they are moved to a new separatyrh)vy ao9 /,tion of 8.0 cm, what is the electric force between them?

  Three identical point ;r115zqid5( ae+vyjs* b blpccharges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to (a15*jli dp;vys reqzbb+c51the 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-axikjhrjco :)syv9l -jny5 ;q;vol m8 .9bs. 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;ks5ovj;rvchlj nb .9-9q) my ol:8y j at the origin?

  Three point charges are located at the folloe0r w9v4 wh,; lwk.9nfk lc8hswing 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. sl48h.vnw k wc e; h99rfkwl,0 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, aw++g +eakoay4nd a second point charge of gya +4wakoe++-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 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 =8mv: d;xxa3j+0 d seja 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge?e8jm as3j;xx d+dva:0

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nctfe1y3q5c id1(p - bpC is at (0, 0). Whatci- 1dybc5(qep3 1 pft is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed,tg:yql )m n9ciu 8c.n at the vertices of an equilateral triangle which measures 30 cm on a side. What is mci. n9 yutg,:qlc)n8the 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. daex6.ch8 wtsrt:x73uwq m, 7At what point, on a line between the two charges, would it be possible to place a charge of -Q such tha. t x,adx7wt sqmu38 w:ch7er6t 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 a.7( q kd agk);npciso/t x = 4.0 m. Where on the x-axis can a third charge be placed so thsp)o nk;c( 7 a.kqd/ige net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at s:x6ce6d t6, rh +w1-rfdemyw x = 2a. Where can a third positive charge +q bed 6 +:6dxm1fee-rc 6wyrh,tsw placed so that the force on it is zero?

  A copper penny has a myea.g9wv 0 m eu)o b4q:e:ahl*ass of 3.0 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 agai1gzd,a i1q3tdb7td5m nst the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is thidtq 11 73dmg5 tazbd,e proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting tsd gznjnv (+2/dj 0ab+hreads which are 30 cm long. Both are given identicaljz0 bvgnn2/jd(+as + d 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 a charge of +40e. What iw 2t v,insfi,hf 55vzr:imb+.s the magnitude of the electric field at a distance of 1.0 m from this wfzfvr ,h+:i.ivt ,b2nm 55e nucleus?

  What are the magnitudevk(wyb*r tc xgdc *4z*o 1w7*v and direction of the electric field at a distance of 1.50 m (4ok* zwxc *7w grb1y* vt*dcvfrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from 0fft)608 x vja7 xylzda small test charge. What is the magnitude of the electric field at th8dja ft)y lv0x7x 60zfe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What isqh o9q msm3y0( the direction of the electric fiq0 o9(mm3hqsyeld?

  A 5.0-C charge is 10 m from a small b h4 crcu-gtkbwgao3g0;veqw+;( , x0test charge. What is the magnitude of the force experienced by a 1.0 nC g,ocvt c;u(bw e k 0q rw0g4-3gab;+hxcharge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separa4 3h1gg rgjgl,j)tgi:(s bs tu) ka;z,ted by a distance of 4.0 m. What is the electric field at a point midway between the twog1 );z a,u4(br t)igjgl g, hk3sgs:jt charges?

  A 5.0-mC charge is placed a 5yjfyhiw6 /vnhconq838(od5ei/c8lt 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 field at the 36 8io8jeycv5(3ld qhhci/f/ oy8nw n50 cm mark?

  A 5.0-mC charge is placed at+c+q 6mrt,y(f0vv 4ajcbyt 3 h the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark +chv3aj0+fv4yc(q y rt,mt 6b. At what point on a line joining the two charges is the electric field zero?

  Two point charges ofaqryw .2 *+fhe +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between2ayq*ew h .+fr them?

  Three 3.0 mC charges are at the three corners of a square ebfy;8 sa(v 5r: u-gu/coz px(y:u oq7of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the elec7:5-uy cszpyroo(fg8ua( buexv /; :q tric field at the center of the square.

  Consider a square which is 1.0 m on a m1sq hw)o l*2ts ubz-*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.q *htoszm2*-)blu w1 s0 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 unifov)xj-x r+c4e zrm electric field. What is the magnitude o xz+-vxecr) j4f this electric field?

  A particle with a charge of/( fx41 v gu5cx5hzsye 4.0 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)v m .voh 4*oe(grp3ff is placed in an electric field of 6000 N/C pointing downward. What charge must b4f ofm. g(3vh*rpe ov)e placed on the ball for it to be suspended?

  A foam ball of mass 0,*rhi8fqei3ccs(s7ea az e3-.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 fieisa3h8 f,-7 e*qr3zsei e cca(ld?

  A metal sphere of radius 10 cm carries kd8:z7 g6 hrgva charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from t8 :76hzgv rkgdhe sphere's surface?

  A metal sphere of radius 2.0 cm ktqiy5y-1l1a b/ cyo+ a (d3yycarries a charge of 3.0 mC. What is the electric field 6.0 cm fr315y 1yk- docq(y/+ aat yliybom the center of the sphere?