State the law of conservation of electric chard j(dzby63xd1ge.

  Is it possible for two negative cha )y9u n0osy xmlpb6k**rges to attract each other?

  Is it possible for a positiv7rw s69 4o; 1.jm (gnqk;dwpzxvaw ra/e and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the j*u 3g mc.9s0 szbrxm2glass rod acquires a positive charge an xsmu. bzjr g9s02*m3cd the silk

  A proton carries a

  The model of the atom shows g*r cu2w7u0wh a

  A neutral atom alway*;4g) *amppxn x muv;ds has

  An atom has more electrons than prosh )1sxhvq*dv*6.u u ctons. The atom is

  Materials in which the electrons are bound very tightly to the n0t*4ayh4 e fpwuclei are referr4hef0wpya 4t*ed to as

  Materials in which the f n2er9- nzfd3mds7sbk7y;y0electrons are bound very loosely to the nuclei and can move about freely withm0 2e;rnn7- byfkzsf d3ds97yin the material are referred to as

  A negatively charged rod is m ub7ad; tez8: wutzpb:yqs)8b6cv 027 bek;sbrought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged : 7) b8m6e udz:a8v7ukt 0sybsq2;ez;cbtwbp rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They x1jyem* t ue(,are placed near each other on an insulated table. Sphere B is briefly touched with a wire th ymutee(j x,1*at is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positivew(r(- ri0yo9t;-b d tije.pmyly?

  An originally neutral electroscope is briefl /sbsbpp 0g tk-9wgg31y touched with a positively charged glass rod.gppw g-s /390tkbg1sb The electroscope

  An originally neutral electroscope/im r,:ebhg+8 umvqb6 n4s/tu is grounded briefly while a positively charged glass rod is held /eit 8hum6:qu4vb,/r +sb nmg near it. After the glass rod is removed, the electroscope

  A positive object touche2ms0tkx9lydxtr ui* 3(u0np:s a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does l9 k0t (ximd 3*:r2nuy0pxustnot touch it. What happens to the leaves?

  A large negatively chan8 c6zjo)9g/gh6g:ke sv z4nfrged 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 doesz vfogn:94ne c gg66 z8h/kj)s 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 constanj4t27 g6erlwrbam,4c t $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charx y ;xcniy9t:4el21k tge is larger in magnitude than thee1lcxxt2y49: ikt y;n second charge.

  Sphere A carries a net charge and ,2gtke totm, :sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the eletomt kt2g:, e,ctrostatic force between them?

  Two charged objects att +zq v wvbne+zqnx+8l5 n,/s*kract each other with a certain force. If the charges on both objects are d5n e /vv+n,8lzx+nk*w + sbzqqoubled with no change in separation, the force between them

  Two charges are separated by a dista uzxf+utsceu428kd (qi2) nmv .*ir:h nce d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, wimnekq rs)ud+x:c4 (vui8uhzf.*2t 2 hat are the new mutual forces?

  Two charged objects attract each other with a force F. What hn;) vi6etm+lmappens 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 onmt m ;)veli+n6e-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. Whav nlcbts.u 41)xi.b )et happens to the magnitude of the force on the proton if a second electron is placed cn )4ex1sbtib.) uvl. next to the first electron?

  An electron and a protnv.1 dl4;xk,cfs: s doa+ opu)on are separated by a distance of 1.0 m. What happens to the magnitude of the force on+)k 4fnps,;.:oloscdvxa du1 the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distz4 nojw ) uw;87r ;+m/; ddcugudbpv6vance of 1.0 m. What happens to the size of the force on the proton if the electron is moved zur4 6d )wuw;d;gb o+m/dnjpv8c;v7 u 0.50 m closer to the proton?

  A point charge of +Q is placed,f63 uuf(wdpk) fl*k i 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 ak63)wud*lkff u( pif ,n 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 is placed at the centroid of an equilateral triangle. Whkz0r 2np4e+yfu+ 4klben a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4+u2 ky+fnlez0b 44k rp.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 ,b sm2h4 h6xujnot a vector?

  At twice the distance from a point charge, the strength of the electric ftd0x0ukjfh82 3 a; arzield

  Is it possible to havrzfh g6 +n 9;5ude7qvje a zero electric field value between a negative and positive charge along the lin q5jgr+ v9hune76d zf;e joining the two charges?

  Is it possible to have a zero electric field value between twojrgzz g bv1l.2,;ncqnzl 8b,9 positive charges along the line joining the two char8rvbzn 2., cl1njbzq; gl,zg9 ges?

  Electric field lines nea59bx+mubw d p7is)qs+ xlttu2e+ b: j3r psitive point charges

  The electric field shown oe r .7e6k/9d 5zow- f5hx qhve)lf03w: tmgbj

  Can electric field lines ie/ huu*8 8mttqntersect in free space?

  A solid block of metal in electrostatic equilibrium is place9vox c8v:z b- ymq*x1qn ik,kt i9s .13ehko.ed in a uniform electric field. Give a statm1:ecy1z9.3sb xio i v*k-k9 xq, k 8ethvno.qement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of e;h ;- xgz0uh(ds4ycch qual diameters are each given the same charge, the electric field (E) midway between the center and thex4hh-c(z 0ch yg; usd; surface is

  A cubic block of aluminum rests on a wooden table in a dox;q nzi+ u)/k u6+5 njh(ursregion where a uniform electric field is directed straight upward. What can be said concerning the charge )/rs+dinuu56+ (nj xkhq ;ouz on the block's top surface?

  If a conductor is in elechgnbqn wgfx940mmk-x*:7 ni/trostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere twsfz z :wv.jt-ssf92 69aqp 2mhat is groundedm92aswjv-qw6z 2 9p fzs f.:ts. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties d*j/4j:5 j e/ipxmkkt1h.e68a a yrqp of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron iz v zrbj-nvsjp7+l51vhn)r(3tzr8 :hs $e = -1.6 \times 10^{-19} \; C$. 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 m+ryvl,.; td 9)pcpmpqd dw 21oC. How many more protons than electrons does this piece of plastic .tdy qrvd)p,c;dp+m9o w 21pl have?

  What is the charge on 1 kg of z8i(-e j2kd4hdnsxb56aarn 9 protons?

  An atomic nucleus has;mjms2 ) *wadj 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 o xb6wnedn2 ))sf 2.0 and -4.0 mC, respectively. What is thn6xe )n 2swdb)e magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forkn;r ex;4zn ;*s-*o nbibliw: ce between them is 1.0 N. What is the magnitude of the second *r*-;lw oxe:bn b;zsii; nk4n charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are 1pe-k81 w zu/xqn:n adthey?

  The force between a z07j0 3fvajcsq dy)z5$30 \; mC$ 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 force. rk, wi)yg;x2*qq u/w w If they are moveg*rxq)uw/;qw, iw k2yd 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.x 5,b 2fgx ik*ar ytn8xl1g+:z 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 dirbzlxi5g *2k 1xagt ,8+rx:fynection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge o64c9f diksjp4c;537m impst xf +2.0 mC is placed at the origin, -2.0 m C to the rpj4 sm3ik97;x idc6pct 5f4s might 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 locatvine-uc,9 y8 b md6l/wed 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. Whuyci 8m6dwn9 b/v -,leat is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the cente ix n31d5kn7avr 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 charge okdin13 axvn 57f -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 = t)t( eu*jyp*/9 yigqsct 7cj5 5.0 nC is at (0, 0). What is / tp79tycjt)syi e(qcju5*g*the magnitude of the net force on the 5.0 nC charge?

  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 ahj.7dz3hh ,ip9a/- ix)qya 6dti .mbbt (0, 0). What is the direction of the net forcb t )aii3bxqdy9.-d/ hh,. 67az hijpme on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of ang2 ey+9y 4)uok)b b;v zvhcxti9u4oz6 equilateral triangle which measures 30 cm on a side. What 6cxiko vg )bo;u9 +9zzhv42y)e4 tubyis 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 /3wa a)m ,23gtw.w 9y*vmyq :bfvooz k3.0 m. At what point, on a line between the two charges, would it be possot ymw3w 3,fkvg/.a*2: qam)z9 boywvible 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 xsw;jek j.f.-ie*v g9= 4.0 m. Where on the x-axis can a third charge be placed so the net force on fwk xi ;.v9.j js*-eegit is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Whezmyc mw6((a4+ii:rd:me- af f re can a third positive charge +q bf4md aiz+e6 farc:(: - mmiwy(e placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A1x uq :paqd0o0xme/e : 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 as 2dc;y6*w 3. es/cc 5wlxaqlof gravity by the attraction of a fixed proton some distance above it. 6 y5a s*;wc/lawqsccx.3 de2l How far above the electron is the proton?

  Two 0.20-g metal sphei n .ido)x9qu*y.d6h ores are hung from a common point by nonconducting threads which are 30 cm long. Both i9u.oydo6)*i .hnqx dare given 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 +40 kso: (qcs4n4qe. What is the magnitude of the electric field atk4nqsq s :co4( a distance of 1.0 m from the nucleus?

  What are the magnitude and 9vratmdo r q,r7 gw82;direction of the electric field at a distance of 1.50 mwq2arv 8m tg;r9,7dr o from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small teisw5(i,lmy,v qej0 q9 st charge. What is the magnitude of the electric field at the location of the test chwqi 5qliems9,0vjy , (arge?

  A 5.0-C charge is 10 m from a p -e8iijrxx)0small test charge. What is the direction of the elejx)- 0 e8prxiictric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magni4*nso5b:g zdz0x 5w k t/2kdawtude of the force experienced by a 1.0 nC charge pl z*b asnd:gtkkdzw5 wx54/0o2aced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separate3 )1aqx dtrnh 9tr20rsd by a distance of 4.0 m. What is the electric field at a point midw3td t2qh s)an1r rxr90ay between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a mey-qa:kzl .6c qge;ov 4ter stick and a -4.0 mC charge is placed at the 5.e4:gc;q-6oz kl vya q0 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cq;d*xbm-c n3l m mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At whl nb;m3qc*dx- at point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC a h3i ach9kq7j5z;en ypg )p(e-re placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the poia5jhp(i)g qnyh zk-ee9 p73c ;nt midway between them?

  Three 3.0 mC charges are: zugdcurpqtr ppz 7++v0,3 ,v at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC gvzuc7v+ rpp, ztq,d: 3+0ru pcharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m o-ln/ (fa)qob0y t y*ho e, ,yv,waxt6i0f1kwe n a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the square's centei e0),o,wyt,o -tbeln/y*0awx 1va fhy6kq f( r?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform el8nxe5z c96lok l7lqq spv+ne5fq78i /ectric field.8l5e z57s/pqe 7k6nlivx9cq8qofn +l What is the magnitude of this electric field?

  A particle with a charge of 4.0 mCh(lc-kq: k/uc)7rg ms/1mrzx 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 is placed in an electric fiyih9p3 ev8 yb em/v8a7eld of 6000 N/C pointing downward. What charge must be placed on the ball for ithi89 ymybvvaep3e 7/8 to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed in10 k 2 cu9cl/hdwd-xxadt9 h3zside a uniform electric field, and is suspended against the force of gravity. Wzt-adlc09x u3/2hd 19xkwc hdhat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge b+;uduw/1pn2vwl6 n kof +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surface?;nvk p1 w6wlnu+2 /bud

  A metal sphere of radius 2.0 cm carriytboe) i.h)c3 /to3d ses a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphedh3/y i3t e.)tsobc)o re?