State the law of conservation of electri1i11yigukddlp;9 n. kc charge.

  Is it possible for two negative charges to p9im dl9f 8sq;attract each other?

  Is it possible for a positbmf lr.*+ 66 xg wrh75(ym rk36era clo/khb)uive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silkme9v.)fs y7pslafy + ,. During the process the glass rod acquires a positifymal ,fs7pe+ )ys. v9ve charge and the silk

  A proton carries a

  The model of the atom sho8 ,n nbuuhel29ws a

  A neutral atom alway7+h5 ; qevckc ta0xx.fs has

  An atom has more electrons than prosv.a4w g 03mvw4dc..4t o+4xm zqyaxotons. The atom is

  Materials in which the electr:r(y8 d8gzk:q.ihop mp ) *svrons are bound very tightly to the nuclei are referred h d)v szyo*8.(i:pkqg:prr 8mto as

  Materials in which the electrons are bound veriae;z-qvf 4f40;oh o fv3bkg1:j i 5ady loosely to the nuclei and can move about freely within the material are referra ;k h;5aivjbdff4q14oe03:vz- iof ged to as

  A negatively charged rod is brought near one end of an u5-js-p-x 2 b bg6skomsncharged metal bar. The end of the metal bar farthest from the charged rod will k5pbox-g-ss- sjb6 2m be charged

  Sphere A carries a net positive charge, and sphere B is neutraly+/htr. 85f kp3b,sy-hi*h, rfo bu qt. They are placed near each other on an insulated table. Sphere B -by83b h ,pry,kroth .t+ ish* f/f5quis briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charge9m /wg n9;)smqeqtdlm+0 qfc 6d rod charge an electroscope positively?

  An originally neutral electroscope is briefly t,tuqirp4 y dy96g*b x3ouched with a positively charged gl x*9b qt4uypg y,dr36iass rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively charphh8,e 4/akn,eu4qs p ged glass rod is held near it. After the glass rod is removed, the electroschsek8hu,4pnp /4q,a eope

  A positive object touches a neutral electroscope, and tvykqf;e5. ma e: yszso y i.90:u;1ckqhe leaves separate. Then a negative object is brought near the electroscope, buik:u.f .v;qcy my saqk;eos10yz:9 5 et does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table h9:yk6iq3ujf . A neutral metallic ball kyh3u9 : i6fjqrolls 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. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb cjj g:ac203; g6b moz /gk/godmonstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge i/k7u(;usc t ym h(4dshs larger in ms7 uudy (thh4m(;k/ scagnitude than the second charge.

  Sphere A carries a net charge and sphere B is e-w ten+ ttxb ;i*op/9neutral. They are placed near each other on an insulated table. Which statement best describes bto*ep e+ x9;-ni/t twthe electrostatic force between them?

  Two charged objects att;8nwo6**mjmwbk-gnn q9dz 4 d+s8djw ract each other with a certain force. If the charges on md z8njd-8+n qd4s6ngj*w kmo;9ww*bboth objects are doubled with no change in separation, the force between them

  Two charges are separated by a diikdr rdfn7gh3w 5t- 31stance d and exert mutual attractive forces of F 1 df3rwk-ingt3h57 rdon each 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 j,h 3jc,/fch3fyssmr-yn1 ; y. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance b,13ryhf/ jj ;y csfyh- scm,3netween their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separat o06nphx*f.0d)am1 fuoyn/p l ed by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next t0ya0nd xo m*ol1ppnf./hfu)6 o the first electron?

  An electron and a proton are4r 4*mn xp.lt.;w xuqj 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 placed next wl*p n.rum ; xqxjt4.4to the proton?

  An electron and a proton are separated by ns1i3zy - 0fke67ik7wcykhp 7a distance of 1.0 m. What happens to the size of the -szk7 c03ykp7 1 7 nhi6fweikyforce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is plat.3t:bu6 iy-p-mjr- 5jft ia oced at the center of a square. When a second point charge of -Q is placed at jrfa5.-ib-t-3tu:i m6 pt oyj 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 electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q i07qfk+l -vt .j ru0 -atnizcbfw753b cm2u a:ms placed at 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 . 0 bqaauc l3ubvf:rk72fni7 m-zc0t t+5jw-mvertices?

  Which of the followin9k tro3zs.i8, pds hch/d/1mr5n w9fxg is not a vector?

  At twice the distance from a point charge, the strengo7l+z4u:o rvvg:9 e-w4zumg gth of the electric field

  Is it possible to have a zero electric field value betweenx/gp jhs9+ sq4o4i d(5c+zlshpfl o)/ a negative and positive charge along the line join) dq o +49scl/h5sfzpp i/(xs go+4lhjing the two charges?

  Is it possible to have a zero electric field value between two :q b eib8p+u(lj(zwo/positive charges along the line joining the two chargeq:l wbj(u+(pzoe ib/8 s?

  Electric field lines h 7quc 2gpz4az cb6g6-near psitive point charges

  The electric field sho *wx ki6(cohkf* 7;wxdwn

  Can electric field lines inters ht* 0tbcw*bt7ect in free space?

  A solid block of metal in electro7 ym9d,lrbi jy9r k)/ds3 ha;4roh2vpstatic equilibrium is placed in a uniform electric field. Give a statement concerning the ed)ajydmbhr4 h79r;r9vl 2 3o iyspk/, lectric field in the block's interior.

  If a solid metal sphere and a hollow metmf ;gvaa1o,1i+znf 6,fn a23nsa v n;sal sphere of equal diameters are each given the same charge, the electric field (E) midway betweenva 6navns;fg+s2 a;ff1nozm , ina31 , the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a x hvkrx d2o1b,64v x)funiform electric field is directed straight upward. What can be said concerning the ch2,k4)fbxxdr vv1 hxo6 arge on the block's top surface?

  If a conductor is in electrostatic equilibrium near klwf 2x0u ;ls 54yeaq h)p5w,van electric charge

  A positive point charge at s/p c .8:*awdrl qse(qn)f3is enclosed in a hollow metallic sphere that is grounded. As compared to the case withous) /wt38 slqcrfp (.aa qnd:e*t the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertiesq*raligfsn-:+t k n3/m-fpu6n +la (z of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is 7n0g sxjz q.a z*m9-+psdfm h4$e = -1.6 \times 10^{-19} \; C$. 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 coy 4x8g cql)u2nu 7x:many more protons than electrons does this piec7uo2:x g xlc8u q)nyc4e of plastic have?

  What is the charge on 1 kg of protons?0bpjsz )d676b0 k swbe6mfyj8

  An atomic nucleus has a charge okvrtz ax.tau.4 :ie5b2 8fvi/ f $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5de f(swc+gm02v9w 8/ j+ kwhsk cm, have charge values of 2.0 and -4.0 mC, respectively. /w(v wwdkj9 me2s s0c+fhk8g+What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betwetzo8qsx8yvp(/u 1w5p en them is 1.0 N. What is the magnitudevt8 (p wyuxs/51 zqpo8 of the second charge?

  Two 1.0-C charges have a force bxiy3*mpv3q jeceo2 zd5+ vk4) etween them of 1.0 N. How far apart are they?

  The force between a iyf7*gx, c )5 dovinu8co39it$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.eu.wr5v g gx 1h) ++7xacvuj2b0 cm apart, experience a 1.0-N force. If they arehwxv g5r+1x2e .u jvbu +cg7)a moved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placedk zo -w)tia59t on the x-axis. The first charge is at the origin, the t a5o)kt-9izwsecond 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 on the charge at the origin?

  Three point charges are place4airj 6v5e9 n,- bvoovd on the x-axis. 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 whic vv ar, vnj59b4-io6eoh acts on the charge at the origin?

  Three point charges are located jd2c2 t qc(i*gnmn:x/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 magnitude of cm2jxn:c/qd g( 2nt*ithe force on the 3.00-mC charge?

  A point charge of +Q is placed at the cm8h qvq50 lezqo 34q)senter 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 acts on the center charge if a third c e l3hqmz)q50o4sqq8vharge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0;r y/ucgri+ 2faimb5 /zfs) t3); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). i+/gcsr2u5t 3f b i)zym/;arfWhat is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); 8* ju w-*/0ckmo)ejazgq(jdeQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). jq/u owjj *zk()e gm8caed-0*What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plamh/tim9c,3k jw 4c b.kced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any onmi tk/4jkh3bc,9cm. w e of the charges?

  Consider point charges 6b,l/q.cq1-wou nvp74fhzcg)j;ig e of +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charq,c.1-4)/7ginlqw goze ;bjcuhvf p 6ges, would it 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 the origin and a +9.0-C charge is at x = 4.0 m. W cb 68ghtpufad+zx9ufi9)q 9 -here on the x-axis can a third charge be pl)a89-6xpq+g 9czfhutu dfb i9aced so the net force on it is zero?

  Charge +2q is placed a +- f :;p,q/):w hjttcu,k+va lfetykct the origin and charge -q is placed at x = 2a. Where can a third positive c qlp/avfcc )t+ t,k;ke,u-wh:fy+ : tjharge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3rpfb+0e )vf c5.0 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 foa6lds )wth7s -rce of gravity by the attraction of a fixed6 s)ht-a7wls d proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducti 4m llp/g/ogq(waq+ q ot/14leng threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until 1mq4 q tq/+/ea4l(wlg l/ goopthe angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chargso 9lxsib *51le of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the nuclis lsbl*51x9 oeus?

  What are the magnitude and direction of the electric field at ac,0o,x sz j/**enybqv :z2nvs distance of 1.50 m from a 50.0zyenc x: v* s/2bs,,q* nzvjo0-nC charge?

  A 5.0-C charge is 10 m fromu(k)-fto, 1ztkj vf e) a small test charge. What is the magnitude of the electric field at the location of the test chargtt1f,f(-)kvo k uej) ze?

  A 5.0-C charge is 10 m from a small test charge. Wh9k qj/,uwpk: +;i c tvnh7/wmmat is the direction of the electric fielt j/whqkp/iucmv,m: + wn97k;d?

  A 5.0-C charge is 10 m from a small test charge. What is the magne**n4 awhs7 :i9a csxyitude of the force experienced by a 1.0 nC charge 9ai c x*hwas*:sye47 nplaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dista:g06 4eridi0bovp vejg2 ;(q ance of 4.0 m. What is the electric field at a po(p4b 0vi2di:g6jv0ge qo er a;int midway between the two charges?

  A 5.0-mC charge is pmn1rulsm 1: 0wlaced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 0m:l1 m rw1nuscm 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 s clgw(nkg qnb0g, 9(zhwh)9k/tick and a -4.0 mC charge is placewl (b(nn9g)/9kh, zk wcg0ghqd at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0ye)g jlj dpsq1:n s)9j+5o8 gh mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midwado))q j:sjn5y ls pgj8+9gh 1ey between them?

  Three 3.0 mC charges are at the three 2p h/ e(nr 8ke8yypp)icorners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fik)hpe8 irpn2p y/(8yeeld at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are x.t26xstlbqxx *: :g bplaced at the corners of the square as follows: tg 2*x:6xb xt.xbql:s+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 ofnp;:yh.)oj zb 5.0 mC when it is placed in a uniform electric fiepbo;.h : j)nzyld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC haz9mz/+o l6x((udeffi to qyln 65;u 6ts 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 0.4 s)lnptc3l( 1n/maa z120 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 suspendedz m)cl(ns4 t/3ala np1?

  A foam ball of mass 0.152k sa q0o*i-kn0 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the f *2k-no ai0skqorce 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 xxb4f/gshrm(c pi+o 7 k-49v wmagnitude of th(g hprx b44k/cfwis o7vm-x9+e electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electmm io*131ucrtric field 6.0 cm from the center of t*3m1c ut1rom ihe sphere?