State the law of conse ij vsh69xj/m53kzgm.rvation of electric charge.

  Is it possible for two negal1n dm6q,t7yitive charges to attract each other?

  Is it possible for a positive and a negative charge to attract tkzc /1fr72a nug h5x+each other?

  A glass rod is rubbed with a piece of silh1i(j ijg0 7*(zvj wnsk. During the process the glass rod acquires a positive chargejjwisn((h1zvj* i07 g and the silk

  A proton carries a

  The model of the atom shows vqsldgr34d) 1s8o .yza

  A neutral atom always hauu15f42z ./ntssc)rk woj/w ss

  An atom has more electrons than protons. Ty: zwfrh( y/,the atom is

  Materials in which the electrons are bound very tightly to theixo(/ot 811 xvffnk *i3c mof1 nuclei are referreo1 fx31vocf*mno/1 xk(ift8id to as

  Materials in which the electrons are bound vts,0j*mn mfrj x6lg9;ly+ a +htr*4u lery loosely to the nuclei and can move about freely within the material are referred l *+hrm6 rgjjtl4xt0mn f s+9*;y,ual to as

  A negatively charged rod is brought near oncusfj5s h:v7*zg- u2 5enr2cre end of an uncharged metal bar. The end of the metal bar farthest from the ru r5cj72u cszhe5fs*g2-n :v charged rod will be charged

  Sphere A carries a net positive charge, and sphe( 5.haq m8gynt5 ;ky+k0 yety fwoh62zo)t dn7re 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 statement mte(5ko.);yzg0 no+hyq6 tndtay y8 h52fw7k is correct?

  How can a negatively charged rod charge ans*j)zn s3o)f4qmm/t w electroscope positively?

  An originally neutral electroscope is g +zt lql31avk t7x g9bp81gb1briefly touched with a positively charged g tg xb1bgp73+ql1gk19 8zt lavlass rod. The electroscope

  An originally neutral electroscope is grounded briefly while q.y q(5 rzea:rmtxo88a positively charged glass rod is held near it. After the glass rod is remove.oxr88 (tz:yamr qe5qd, the electroscope

  A positive object touches a neutral electroscope, and thw(-c-f v ikd62gmdo 2te leaves separate. Then a negative object is brought near the electroscope, bud6kmfi t-cwv 2g-od2(t does not touch it. What happens to the leaves?

  A large negatively charged wqrv0bh9 p7yof:rpyc/+9z ,gobject 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 firstv99 pqwh,bgr07:ypy zfc /+or 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 constant)y h*l6dbb xjbvhi kpk o 6:2u8 yi603bgh2tb- $k$, which appears in Coulomb's law?

  Two charged objects arecgy/rhrma x lzs q77ebs5 +uv s)( 2.i0q/d)rj separated by a distance d. The first charge is larger in magnitude than the second charge5gq elcmz+ .s7b)jar/y72s ) rsqh0/ur( xvdi.

  Sphere A carries a net chu5x a /jq3jxl8arge and sphere B is neutral. They are placed near each other on an insula8/3xjql 5axuj ted table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges j ja/sb :iq/:s36va+jq uapbn/b,(klon both objects a,: :a/p3(ql ksi6v/jbqbaabj u+nsj/re doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutualfho1ecmz* 6w7 (btpu0b d d1 /rw;ske1 attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual for pt;r17me fkh/sewwdc1 10bdo*u6b (zces?

  Two charged objects attract each other with a force w )xpehzg5e6x-/ai e 0F. 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-four0e)6e pxh ieg-x5z a/wth its original value? The force is now equal to

  An electron and a proton are separated by a)7uo1qjgj 555hrff yn distance of 1.0 m. What happens to the magnitude of the force on the proton if a sefj5 7g1fq5ouj5h) y nrcond electron is placed next to the first electron?

  An electron and a proton are separated byoj(tr 2 *w8uu:6bt(zegoe oubm j n6h-ra0*t3 a distance of 1.0 m. What happens to the magnitude of the force on them g8oj(o hn0 utro*b 6-etu* jatz3wrbu26 e:( first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by m 3 weplzz 2..jgb.)pca distance of 1.0 m. What happens to the size of the f).jglpbc z2 3ze.pwm.orce 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 a square. Wum3xo h;. qk9 jz iyosp22x,m4hen 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 squar4y.z32ohmsxxkiu29 ;omp , jqe'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 p5*t,zpj/ x qu zn9oo/centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's verti5,oqxu/9popnj/ *zt zces, 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 r;2(i l0jp k)(fgs b pbja6;xanot a vector?

  At twice the distance from a point charge, the strength of t+)gz stdx*+wzaun6 ff8q6:s8 yw sa0she electric field

  Is it possible to have a zero electric field value betweenni3wu4c:h*p i a negative and positiv34ciu*p: nwih e charge along the line joining the two charges?

  Is it possible to have a zero elecflew :*d.w(-a* fxcls tric field value between two positive charges along the line joining the e cfa-slwl: (*dxw.*f two charges?

  Electric field lines near psitive4 etex/keb3 19 z2smfo,n:mpw point charges

  The electric field s-qvqczf lhe:*3 xuy.i*e w6l5hown

  Can electric field lin 4f*r x(6jq(i ;g0dgup, xb+rbp1iwvqes intersect in free space?

  A solid block of metal in electrostf*te:bhi xo0 2atic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field ini*t:o0ef hxb 2 the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each 6pv8eyl7racm w lhlsp+j x :: b*-hh32given the same charge, th:x l-+s2l:3*7ahp h6elrjpymbwv c h8e electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden tablw k.q-tj2 v*u4ytw,f ie in a region where a uniform electric field is directed striq2-wk t uvfjy. *w4t,aight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostat4j qb73cyib /hdzo- 3kic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is / )d sxyv9b9rdgrounded. As compary)9 d9/svxrdbed to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static y t 8jsqm;k5ek6pxyg .+swo.: equilibrium.

State Gauss's law.

  The charge carried by oneyt*c27 o uuxh: 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 m v- (3s:mpcvczq7 n5khany more protons than electrons does this piece of plastic havscm5kz -v :7(p3nch vqe?

  What is the charge on 1 kg of pro,;fh*n wk. avttons?

  An atomic nucleus has a charghp9wkbist t5)7a1lx;dj mppbe: )+* x 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 u+1az;n 3xhrdys6i) u5a.hsy+ ti-c j2.0 and -4.0 mC, respectively. What is the magnitude of thn)ac3ats y+yhx6 + h1.s dij;5i ruuz-e electric force between them?

  A 1.0-C charge is 15 m from a second c,v on2fu m:*esharge, and the force between them is 1.0 N. What i,f e vmso:u2*ns the magnitude of the second charge?

  Two 1.0-C charges had 2i ct;u+ zwpx/,xlx4ve a force between them of 1.0 N. How far apart are they?

  The force between a 3h /i (kx 1a3w)cch,amdw2tyx$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially rsa hc++hcs jtd)avi-q1 3-.m2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force betwe i+hscta3v c)-ad +jh1 rm.-qsen them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Th6-9 a42i3sx/m-v.k vxqt(fl xomug w/v flea0e 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 elec 0l v/xg2wt.6x(vv- si-a34fqxfak elu /omm9trostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A ch*nvf +e,rmwc 7q. hj.narge of +2.0 mC is placed at the origin7 . eq+f,vnmhw.jnc*r, -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 are located at the following positions: Q1 = 2.00 mC aor s;b)j rvjb*re;-9 pt x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.vpbj9e r*;)jro; b- sr00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at rs9 gssqnf))qnojq ),1vvc;- z6j; d xthe center of a square, and a second point charge 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 magnitude of the force that a)z ,;dqsvfr;o ))qv9-qx1 gnjs6 ncs jcts 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); poj:(eh3 mutnk d/01 kQ3 = 5.0 nC is at (0, 0). What is the magnitude of thnh(t/03 kdo kpe :ju1me net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC fx7 eus2dx+ s2is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directioud2es2x7 x fs+n of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of anufje84hy m9mcomdm kn(-yhwex; -801 equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on anyny uf(he;m8ymwke d4cm8mxj -0-91ho one of the charges?

  Consider point charges of +Q and +z*vfec ncm.4(4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would inc f4z(.vem*c t 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 theba ( ,u3mt+wgv origin and 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 f w t+3vu(bm,gaorce on it is zero?

  Charge +2q is placed e7 t0gkc5jb+tat the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be plac+ec 07tj bg5tked so that the force on it is zero?

  A copper penny has a massrs5z8ek7o a( 3q:kdh t 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 against the force of gravity b(c op, -ggwm9iy the attraction of a fixed proton some dwpgc (mg-io,9istance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres arcv8ye8uew 4nko x54:re hung from a common point by nonconducting threads which are 30 cm long. Both are giveyexc4o88nwr:u5 v4ke n identical 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 is the magnitude of the electr:qwqy 3)z ggt9ic field at a distance of 1.0 m from the nucleus9wyt qgz:)q3 g?

  What are the magnitude and direction of the electric fie+c w-idrzu)0y ld at a distance of 1.50 m f+ciz wu0r)-yd rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. ml2zxx0b ur*rupln,mbz 0b: 9:m7 4ri What is the magnitude of the electric field at the location of the tel:lb2ubrx , 7pmmnu*bzrr :04m0i9 xz st charge?

  A 5.0-C charge is 10 m from a small test charg/c1 -he) pllezwp zt ( 26f6cgomy5sc7e. What is the direction of the elec16lgs hplz 6 ze/ y-c cmfoc7t(5e2p)wtric field?

  A 5.0-C charge is 10 m from a small test charge. What is the maykm5 i-hd ;jk,v* bg /xg,/zblgnitude of the force experienced by a 1.0 nC charge vklz-*gdb;j hb,i/,5g yxm/kplaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are sep nwvvqd * 4,8d 9+enkdebflr0(arated by a distance of 4.0 m. What is +we (ndqde80 *b4vl rn9dfkv,the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC charge snn-3 b3enw626zlnftq+kyw/ is placed at the 50 cm mark. What is the electric field ae6zsnkntbf- n32 n3+qyl/ ww6t the 30 cm mark?

  A 5.0-mC charge is placed at 77zj smb6 il ,nqb)qm4the 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 line joining the two charges is the electric fiel 476,)m7znbjqslqi mbd zero?

  Two point charges of +3.06/7yiii -xbmamki w 9( mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at tyi7i/ bwm(i9 aikx6 -mhe point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.5/obi ( q54d7rapc,bg z0 m. The last corner is occupied by a -3.0 mC charge(db5r gi p7b4 za/oqc,. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Chargecgh q4ous/mk0 f;ts+*s 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, 1). What is the magnitude of the electric field at the square's cenokc*s gu;htm fq/+s04 ter?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uftpw)/ , 0q0 pe-mhfzzk/k5 )lfj (zg;oi 6jeoniform electric field. What is the magnitude of this electm z(ffkeqp0 /j50wjzz;), f hge- ptkl6/io )oric field?

  A particle with a charge ss89cmgu7f,a kl8v4z of 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.deyuv4wm:h1* 5mvly 7o lx-s.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspende*7m o 5l:e d.4s1uhyxlmwvyv-d?

  A foam ball of mass 0.150 qrxm/5 (yduj58 pk,bn:a+f vri /r)dx g carries a charge of -2.00 nC. The ball is placed inside a uniform electric mrpj(y xix:run8/b+d/v) 5fr5 ,qk a dfield, 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 charg 5z3 frp+x057fwj yreje of +2.0 mC. What is the magnitude of the ele53p 75j+0ffez wryjxrctric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm cargsk,r-/hsp 9ix51,bf ms(dyfries a charge of 3.0 mC. What is the electric fi9msx (syd fh,r5kspg/ f,1b-ield 6.0 cm from the center of the sphere?