State the law of conselzff0b7 ixy: 8fck0a;g mf).(k/ fgi srvation of electric charge.

  Is it possible for two negative cha4 iv kvu/9g.v7 ccoj,yrges to attract each other?

  Is it possible for a positive and a negative charge to attract each othun :u)k,fnfbw;5 lxl97p1)s*. 9oib r tpb ryper?

  A glass rod is rubbed with a piece of silk. Dur:cjy /pj *96obp9ndvbqwk::ql:c s: k ing the process the glass rod acquires a positive charge and :: jq:k:bn*vqk9w b :lcyopjd cp/69 sthe silk

  A proton carries a

  The model of the atom shox +cvocx2o+ m 3;vnvt5ws a

  A neutral atom always ke: c8hkc 3gzyupb .e4p3:r (phas

  An atom has more electrons than protons. v mfec9h+bv*9 (9byal)rg nf8The atom is

  Materials in which the electrons are bound very tightly to t2e xah;nx:6pg myo-x8 he nuclei are referred86n axxmo-:xg h2;epy to as

  Materials in which the electrons are bound very loo pmolb b+9 5,m6l :;jzflhqss.sely to the nuclei and can move about freely within the material are referred th f:l6+ozq,m. 95lbm;ss p jlbo as

  A negatively charged rod is brought near one end2n(lk ,9lj vmj of an uncharged metal bar. The end of the metal bar farthest from the charged ro,njj92(mk llv d will be charged

  Sphere A carries a net positive charge, and spherf zo(f62f2ulysa-4kn e B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. 62nso4 fy(f az2-uflk Which statement is correct?

  How can a negatively cha00)t3ke o rcddrged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positiveby ;vl0b 5xzx3ly charged glass0 5b;vbz y3lxx rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positi5pab ;gh8nj,mo y0 ew0vely charged glass rod is 0pyme g;8w o h0a,nb5jheld near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Theno.o :ztgy4q(z x4e7 pf a negative object is brought near the electroscope, but does not touch it. What oz7pe o4 x.yz4t(gf:q happens to the leaves?

  A large negatively charged object is sc6nx .3dnp5hy .1ekz 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. h 6xzc.. 5nep3knsd 1yThe 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 constaus p syi+ s3)/,g* byco4n-d0 7cnfarqnt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is large4 p4g1dv,i6rs xco fh*r in magnitude thc4*fpo6v14s ,d xgir han the second charge.

  Sphere A carries a net charge and sphere B is neutral. o a2kk8jvi iwhvs3+w j;1+h 7c:u u*y, mqrcg* They are placed near each other on an insulated table. Which statement best describes the electrostatic force between yo1cuc i g,8 w2:h;khi7*+kuvrajvmqsj+w * 3 them?

  Two charged objects attract+h,.ve4 nff uz each other with a certain force. If the charges on both objects are doubled with no fnvu f+he .z,4change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces of8gj 6dg3*ip5ycraq 7 s F on erig6 qda5g3y 7pcj 8*sach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hapw5 )tzuau;lt)vmt o6 3pens to the force between them if one charge is doubled, the other charge is tripled, and the separatiwtv5 )tm u6u;a tzlo)3on 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 780igwf9 jjx 5pg dob9of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the fxp dwijf0o 95b jg7g89irst electron?

  An electron and a proton are separated by a dista kih,*c2/qha1bfm,t ys;: yyiz h:y6 vnce of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron ih/zib :fiv2mac;y1* hsh ,6ky :yqty,s placed next to the proton?

  An electron and a proton are separated w o .3nwi1ng)ws-+rsrby a distance 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 the -3wsnw+ n.1iorrsg) wproton?

  A point charge of +Q is pw4-*w 8+0b z06a ogtvfzbbgu mn ui*.tlaced at the center 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 the magnitude of the net electrostaticbn0b zugbwtwi6am t-.**of v u84+0g z force acting on the positive charge at the center of the square?

  A point charge of +Qoekk9hw a0 .8r is placed at the centroid of an equilateral triangle. When a second charge of +Q i9 .ohar0kwke8s 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 charge of +Q placed at one of the other vertices?

  Which of the following is not a v3+t7zu gzbi ltm 9yhg)49rd n0ector?

  At twice the distance from a point charge, the strewdn1n q1 ox d9a+7au;lcklycq4ty6 80dk v99hngth of the electric field

  Is it possible to have a zero electric field valuu*fhfg8,4i + h nk-tr; dxqjr; h5 ghaa8iz5f1e between a negative and positive charge along the line joining the two chargfa;utgj5 1r f ;irnzkif h 54-a,hq8+*h8gxhdes?

  Is it possible to haveif7x09jp cisltt6nr; o d*+9e f 48f.mbu4j pj a zero electric field value between two positive charges along the line joindfo94mn4i0 bfj8;.+jplf76p*9r u ctet i xj sing the two charges?

  Electric field lines n3jqa ,2 x55fcvu/k eccear psitive point charges

  The electric field showhu 0/wz xpd89km,*t3d cvuf,wn

  Can electric field lines refb:)h jt/8 wintersect in free space?

  A solid block of metal in electrostatic equilibrium is p s(dm5jkf b);lc xc)/vlaced in a uniform electric field. Give a statement concerning the electric fiejcv;c)/xl bs( f)k5m dld in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamen5rqlwx8e0 s0nc:99rs sg p: rters are each given the same charge, the electric field (E) midway between the center and the surface isrlqe9rpn nss05:c: r9 sg80xw

  A cubic block of aluminum rests on a wooden table in a region where a unifk1tl uc 61fq5fljbc(5orm electric field is directed straight upward. What can be said concerning the cha 55ccu1 tb6jkfqf 1ll(rge on the block's top surface?

  If a conductor is in electrostatic equilibrium 4p5jr)cim 7aze .5uwinear an electric charge

  A positive point charge is enclosed in a hollow metall:c wyq wu/ rp0/m t:k5c)gp8 u5bqctd1ic sphere that is grounded. As compared to the case wi8wbk :pc0m /ypw5g1qcturq/ud tc:5) thout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in statiwc6ey 3r0,chitux o(( c equilibrium.

State Gauss's law.

  The charge carried by on k2j; 6ts9aeu,jnex p+e 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 net charge of +2.00 mC. How manwfc*0x g6k-k92 )j y u/izbwejy more protons than electrons does this piece of plastic have? -)0 *wk6xe jybfg/c 9j2iwukz

  What is the charge on 1 kg o v,-5 euyjcg0nf protons?

  An atomic nucleus has( wzhzj s nqfuh -gt+(vl4,v4icy+4y9 a 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 charge values of 2.0 80 zunj /6ookwand -4.0 mC, respectively. What is the magnitude of the electric force between th /kj6 o0wunzo8em?

  A 1.0-C charge is 15 m from a second chavuo;-lbjo0z m)6wn; rrge, and the force between them is 1.0 N. What is the magnitu-6z; vwomnb;l)jo0ru de of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are x05ni5l4zi pethey?

  The force between a xrou8xh3d. 0 + 7-cqango6fol$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.026:auou- e iha cm apart, experience a 1.0-N force. If they are moved to a new s: iha6u2uaoe -eparation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on theb//c kw75 dmok/u7 hk9o nev2s 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 79d/b7u m e kwnvs/o 2koh/5ckon the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2:ky z(wca 6kis):e5xl.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 chargeey kz6)kxw::ic a5(sl at the origin?

  Three point charges are loo(;51bdd fpjn s (gb)wcated 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 1sdw); d5gfp bjn(b (omagnitude 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 point ch0nqn * p0zpsxlio d64.;zh5r rarge 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 m po600rld;4*sh.izp n5 nrzq xagnitude 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 = k+dabyn2j 6zx,+ nurh ps(:/j5.0 nC is at (0, 0). What is the magnitude of the net force on jjd /ar+ns ,k6z2buhn(xy: +pthe 5.0 nC charge?

  Q1 = 6.0 nC is at (0m116lx. t; fwcwlrkz 3jo,5q y.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thwcr j6 w11mo5zkl;yxt3 .lq,f e 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilatera7iz/rz/am ;fw9cf.k* sl hbp3l triangle which measures 30 cm on a side. What is the magni7.rzb c* m3kas fh/z;fpiw/9l tude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q anda4qywcf y g a6x:sc292 +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?q4y9ayw6g:2cxfs 2c a

  A +3.0-C charge is at the origin and a +9r-jzs-y y,1o x.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the ry -y1s-zxj o,net force on it is zero?

  Charge +2q is placed we6+wd z knbhe+nv(3;at the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on itbnw;v e k+z36(nw hde+ is zero?

  A copper penny has a mass uq g*lrglt q *6/4jx0cof 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 against the force of gravity by the a3l 0/*t aiyfx znil5dgp/-5ooek9 *7m ,po wtdttraction of a fixed proton some distance abovg*zdy te7if9*o/oa/t,l 3 m il0 5koxnp-dw5pe it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncon/rrk;f .a6w9d z avg+dducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart unti9dk.dw/r6ar ;a+g zf vl 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 magnitude of thm8 de.j9-kee wc6;oote electric field at a distance of 1.0 m fro o;ejode 8et69c-wm. km the nucleus?

  What are the magnitude and dixrceaprt5i( 7c6n*n9 /9hrzt rection of the electric field at a distance of 1.50 m from a rn9c r5*npt7t 6/e(z ah9cxri50.0-nC charge?

  A 5.0-C charge is 10 m frog8+ rr9olotb*m a small test charge. What is the magnitude of the electgo9r *ot8b +lrric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. nynd,2:tq lh+v) ,t vkWhat is the direction of the electric fieldvy:2q)hkt, ,ld+vn nt?

  A 5.0-C charge is 10 m from a small test charge.-( 4jmmixr;w7kr5wtq What is the magnitude of the force experienced by7;rqw -54(mkwrjt m xi 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 ml wn emc*vw6y7x1741,wat hdare separated by a distance of 4.0 m. What is the electric field at a point midway between the tacy1,7vnw74d wlw1t *e mh6 xmwo charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 m8 sqaq rv8p0a t5,qqpyef h/-4C charge is placed atqh spfra q80y8e /4p,q5qa- tv the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick andmn j1tegzp2so9tx f(5 ;5ml3. s.lpos a -4.0 mC charge is placed at the 50 cm mark. At what poi 2mps5s1.9;t lz 3mj.gs5( eoxopfnltnt on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 meqfxulku8s++ ;-ieirvd6 * 5a C are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field af8l+ +riqd i 6vseu-uekx5;*at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.5+bd:3u) ridwitfv( z70 m. The last corner is occupid+dwzfrti ():3 7uv ibed by 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 placed at the cojdtgvs:;w 2-6ac/bhl rners 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 squarjt-l2acw6 /d vg;bh:se's center?

  A force of 10 N acts on a2,x t qefssdv kcr7-01 charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric fe,x1q0kd 2f- tc vssr7ield?

  A particle with a charge of 4.0 mC has a mass of hc14poti4/y r5kfdm ( $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of ma/eub 2k1fg2o mss 0.120 g is placed in an electric field of 6000 N/C pointing down f 1e2kb2o/ugmward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carrtu/ -fsc1de5 mies a charge of -2.00 nC. The ball is placed insidc /e1u 5dsftm-e a uniform 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 10 cm carries a charge of +2.0 mC. Wha od o u)*z m5se,)z4wbaxqmh-4t is the magnitude of the electric field 5.0 cm from the sphere'sd*hz a- wu )m54)4mq ,oxezbso surface?

  A metal sphere of radius 2.0 cm carriz bllgs40bw,* es a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphellbw*4 0sbz g,re?