State the law of conservation of electric charge/ytv n2r)r,g c.

  Is it possible for two nn0qz3;cv.vkk asmexc0h691k egative charges to attract each other?

  Is it possible for a positive and a negative charge to attranamxy.c 8 ,rqj; +ql,ict each other?

  A glass rod is rubbed with a piece of silk. o:;qkzlv) mhb3wg 2: oDuring the process the glass rod acquv2b)lq:zg ok3oh m:;w ires a positive charge and the silk

  A proton carries a

  The model of the atom shows m; 0zl8q vuw r+z48dika

  A neutral atom always e4kh w vdzjxc1-sv+7*gjuu *:has

  An atom has more electrons than,u7effo-5fbt7:.+t r )9oyhf fv s snz protons. The atom is

  Materials in which the electrons 7(:n pc.8samxai edg4ff(/ vxare bound very tightly to the nuclei are referr/( fd 4se:m vx8p.ax nfgci(a7ed to as

  Materials in which the electrons are bound very loosely to the nuclei and ckn u qys :935gcdt40dxgqj*x 0an move about freely within the materis0dg dcj0knqy q*t u59gx :x34al are referred to as

  A negatively charged rod is brought near one end of an un/ngrht 4e -:vscharged metal bar. The end of the metal bar farthest from t:n tr- sg/e4hvhe charged rod will be charged

  Sphere A carries a net positivw5lo*5r, g ztce charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B i5olz5trw,*g cs briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively ps pho9e8 z4*echarged rod charge an electroscope positively?

  An originally neutral electroxno/ysvb t) w9q33eb -scope is briefly touched with a positively charged glass rod. The ebb3ot/q neyx v 3-w)s9lectroscope

  An originally neutral electroscope is grounz; yn 7+4g01azyqmrfz 5a,oj:ow.ujl ded briefly while a positively charged glass rod is held near it. After the, z .ojln+yzz 5ar7y:u 4wjf;oq1g0ma glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the levq+xxp5 1 )uheaves separate. Then a negative object is brought near the electroscope, but does n+qh vu )5xp1exot touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. -j mcwj)v l+xphb;1(q A neutral metallic ball rolls straight toward the object, but stops before icm vjqp)l b+(x -1hwj;t 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. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb courgy0 z-i4 -mknstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a5hb t6hll/ i6 qscbu;spam:c00-m 0wk distance d. The first charge is larger in magnitude than tbcscu5lm 0-h;a6khpm:bwtl 6 0 si/q 0he second charge.

  Sphere A carries a net charge and sphere B is neutral. They ar 7xxhv zwrrw 84ktdd3a: )ry)4e placed near each other on an insulated table. Which statement best describes the elec dr3 v)x:4)hwr7w yz4xdkta8rtrostatic force between them?

  Two charged objects attract each other wcj 0 8lajw s5px8gh,)cith a certain force. If the charges on both objects 0hc)cja p 58g, wsl8xjare doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutua.6fk (: wzvzy;xjnf0al attractive forces of F on each other. If the charges are separated by a distancenf( y .v kjxfw:a6;zz0 of d/3, what are the new mutual forces?

  Two charged objects attract each other with hxet 2o *+ob)np2z +kja force F. What happens to the force between tnbex++2o*t)ph okz 2 jhem 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 bz6/wpun.gy i ku068i 9ujx 5jby a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first ep/8ziuy6u. 0g6iux w j9n5kbjlectron?

  An electron and a proton are separated by a distance ysl y) 5wuur b+(ui9:koqn8 z.of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed nexr b us.u y:zl5nqk9()8uwy+oit to the proton?

  An electron and a proton are separated by a distance of 1.0jlokzl6s(.s .b f7 s1q m. What happens to the sizezl( ss jqkf7 6b1.lo.s 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 cgpelm f5,ea- 65t 4zpov +mz)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 tl6pfoe- mza +5mvt,)ep5g4cz he 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 abo t 20 (+2xknjy;td9dzin rw(t the centroid 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 charge of +Q placed at one of the other it(z+r(w9d2xnnd 0tjkb y;2o vertices?

  Which of the following is not a vu fdg-2 6jks0.edjt0q ector?

  At twice the distance from a point charge, the strength ofu , gbs5hv81mc the electric field

  Is it possible to have a zero electric field value between a negative*d*hmm/ k6y9d s( nkte and positive charge alons*n( dkdety m9hkm/ 6*g the line joining the two charges?

  Is it possible to have aakc+/ 0q3 u yyufaop,d/kj,1i zero electric field value between two positive charges along the line +c/qaf,u1u0aj,o p/y 3 dy kikjoining the two charges?

  Electric field lines near psitixkyn4 7s(//f 6wshg1u1k /y0pqpt gttve point charges

  The electric field shown /-ftu rec*i:m

  Can electric field lines intersect in frek .elz)9z/f/bvn qic1e space?

  A solid block of metal in electrostatic equil )u-5ixazo hn4ibrium is placed in a uniform electric field. Give a statement con4h)znao5 u xi-cerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diame j/ggm1 r1(vqvters are each given the1j 1gr (mqvv/g same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests oz f:wm:ct*i r 5d2fol.n a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the w5*: rcizfd l:m2fo .tcharge on the block's top surface?

  If a conductor is in electr ahz;gyjpaego+ 6gs1+mpa 1)n.f yf4*ostatic equilibrium near an electric charge

  A positive point charge i5okvcf bea.u7fb t:12+q;6t sjz b(pus enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere,tbfq+fvt:. 76 zbb(2upkeocu;j 1a5s the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibr t kk;gmtm182g- *vzctium.

State Gauss's law.

  The charge carried by one ele80dw1 yl/sw bactron 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 moruu 7pxl a) zxc vo6mss;6-+mg6e protons than electrons does this piece of plastic sos m)c6vxzu7;x 6plg m6u -+ahave?

  What is the charge on 1 kg o33s6htha wk 9rf protons?

  An atomic nucleus has aa6ilq1/ ;+pvj2ed( n dyypwc( 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 and -4.0 mCvqh(s)iu+k6/ ro qtb2 r3z ;aews 7dt/, respectively. What is the magnitu)sio3/2zqt7btrk6( +h v / asewduq;rde of the electric force between them?

  A 1.0-C charge is 15 m from a secoc06 +,vxml hzwe aaq77nd charge, and the force between them is 1.0 N. What is the magnieqva c6+x m77hl0zwa,tude of the second charge?

  Two 1.0-C charges have a force between them (r nkgvsjp8a-hs3+uoy+ p 3;sof 1.0 N. How far apart are they?

  The force between a 7hxp -:4oanwj$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initialn4dwz 5l 9nwl6curfdjs(.y1)l a3dihh8 ;6hv ly 2.0 cm apart, experience a 1.0-N force. If they are m l1 68.vr3dysl w9wjnzn5(ahh ;du f64)dl chioved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Thehh a) h/2t0g yy/10qrw+zqzuh 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 foyt1h)zh+ zhaqg2qyu/rw 00 /hrce which acts on the charge at the origin?

  Three point charges are placed on the x-axis.*52pdr 9klgzc(wsd 0r 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 which5(gd 9r rzsc 2wkldp0* acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC 1kgr ixk9sy6/at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC aks9g 1k/yx6 irt 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 o5 0g6a5chu9 up;ubu yyv e38lnf a square, and a second point charge of -Q is plyuv98abcyl;5g5uh 0e3 punu6aced 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 = 5.0 nC is a8q 4g ijubji2boyc3+7t (0, 0). What is the magnitude of the net force on the 5.0 nC charge?oi4ub 2i7j3+cg jby8q

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.01a g+kuy( 4 j-ei/c mkoxk7w7u nC is at euy g/-4 jk(mk1ou +7acxk7wi (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 at the vertices of ae6usq wqg5( n:n equilateral triangle which measures 30 cm on a sidesqneg q:u5 6w(. 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 by 3.0 m. At what poixb46v3 e.c meznt, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic bm4ze.6v c3xe force acting on it would be zero?

  A +3.0-C charge is at the origin azs. p3r*u/f dxnd a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net fo/ u.s*x3pzf rdrce on it is zero?

  Charge +2q is placed at the origin and charge ( u ubysoko7 v;noq;mb12f+a8-q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it isn(;b 8oao2k f u7osvyub+ qm;1 zero?

  A copper penny has a mass of 3.0 g. A total of yrt0,qxl;h.fs62fz th .) r et$4.0 \times 10^{12} \; electrons$ 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 graviy xu c.f6( xv1oenfqya4.6 hl.ty by the attraction of a fixed proton some distance above it. lf.aync vh4x6.u x6fe.1qoy ( How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common pavavwb.h 1e,e 8otq//oint by nonconducting threads which are 30 cm long. Both are given identical charges, anvotee/bqh8.a, a/wv 1 d 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. s:ta0r,urv a .What is the magnitude of the electric fauvtr 0,a:. srield at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fielq3kdfwphd -5(7 y.nj+ jvtn5ld at a distance of 1.50 m from a 50.0-nC chapv y5-q ( 3wjhtdnjfl.5kd+7nrge?

  A 5.0-C charge is 10 m from a small test charge. What is the2gtbgr3 .r3 pip 1ae-;(zs:quru ibrg*0n0vc magnitude of the eq1 r3 ibr.suvpcng-ig;( zeb*rg0ua3 trp :02 lectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of tnk9datyjx )1q2 a c/w9he eleadqxj)/k2 9t ncay19wctric field?

  A 5.0-C charge is 10 m from a small test charge. What is t2crupf/9 aj j0he magnitude of the force experienced by a 1.0 nC charge placed at the locatiop jrfcju092a /n of the test charge?

  Two point charges each have a value of 3.0 C and ny4 k,ru/j6)5rwx j,,hbl dg zare separated by a distance of 4.0 m. What is the electric fxh5jw zb ry)lkjd/r,6,u 4 gn,ield at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter0huu v4;eym1p* 3dml h stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at41u3dhv ymu pe;*m0hl the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick ani13*. .fjc acia4xo fad a -4.0 mC charge is placed at the 50 cm mark. At what poinci1afi3acj. .* xo4fa t on a line joining the two charges is the electric field zero?

  Two point charges of +3 d t9lhqq. f/w 4wp(7xwg dn1e9ppk;y8.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fiel g e 1ly 8dw/dtp q9kh.(wpn47;xpqwf9d at the point midway between them?

  Three 3.0 mC charges are at the three corners of adrr;6u, l1i tkys5 sej6kd8t- square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the ey skud -l; 65es,ttkj6id1rr 8lectric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed a +b 7;joe1eaic tfdbny:6(t ld5yb+u;t the corners of the square as follotunfacb + d6y;beo(y5tb7:i+ ;jedl 1ws: +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 square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uni f5pjygtd;- c0,pasj (form electric field. What is the magns ;fjag(tj0,c p -dp5yitude of this electric field?

  A particle with a charge of 4.0 mC ;3ox) ,ib7pdn (uhnqz 2l6 l(kz7jvkk 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 z 0ycr uyy7n)5)5gaw uk5zd6m ; jc3pzmass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the;55g yn)uz7y dpw kmc0 ayzr65u j)3cz ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge cm4uxd: t4uhdcf(9 s6of -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 directix4u4cd9( cht:d sumf6 on of the electric field?

  A metal sphere of radius 10 cm cdhy9k5w(nx vpra c-8zbs w07 5arries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm f8ak d0ywvc5 w-xpz(s brn975hrom the sphere's surface?

  A metal sphere of rad4g t( 5z5bjzqoius 2.0 cm carries a charge of 3.0 mC. What is the electric b4z(tg j5 5oqzfield 6.0 cm from the center of the sphere?