State the law of conservation of elect 5.2 j/awl u+h4j1f8tkngs2(s42kq o k lzjthbric charge.

  Is it possible for two negative chtaz p0;+ 6o(4v03 onqlzzsy kaarges to attract each other?

  Is it possible for a positive and a negative charge + onf+5oarw nn57 c(aoto attract each other?

  A glass rod is rubbed wie 0.ll9.yyehy1gwfo01v rym5th a piece of silk. During the process the glass rod acquire g hv10f.wyrem5oel y10ly.9ys a positive charge and the silk

  A proton carries a

  The model of the atohu r/4ds f;i b*3hwkg75 95sqhzyb)k16h oioem shows a

  A neutral atom always hu,km tid.nddw4nm7* nz r1 +q8as

  An atom has more electrons than protons. The a et0o yl +s4o 7de2h.ay;jzq7ntom is

  Materials in which the q4lwz10 h3nwyelectrons are bound very tightly to the nuclei are referr3w4qw0ln1y z hed to as

  Materials in which th;vyd k y h74swl8lym/:e electrons are bound very loosely to the nuclei and can move abousl8yhvkm l :;yw /yd47t freely within the material are referred to as

  A negatively charged rm :kzp2dg8h- cod is brought near one end of an uncharged metal bar. The end of the metal bar farthest f8mk:-cpzh dg2rom the charged rod will be charged

  Sphere A carries a net positive charge, anso(6tqn 2dek+:d5bk id sphere B is neutral. They are placed near each other on an insulaktn e6do +b:qi(sd2 5kted table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charwfpsb;(8r 4kk ge an electroscope positively?

  An originally neutral electroscope is briefly tu; u,lr0vn(qr jg-tt 8 ur/ tr3,aba r0kw(,kdouched with a positively charged glass rod. The electroscopraubrr8k(-awtvgdrk0 ,lrq(/t,uj ,u0;n 3t e

  An originally neutral electroscope is grounded briefly while a posix;19rpi(gc;vv2q smu 8 h an-btively charged glass rod is held near it. After the glass rod is removed, thbpshv1r9uca; ;82vimqg n x(-e electroscope

  A positive object touches a neutral electroscope, a0x ),l up-pnd* 3x tu8pql4vbend the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happeb n 8u),0el3luxp- x*pq d4tpvns to the leaves?

  A large negatively charged object isf)-ty px9,p2zm.6c ahj b wj(r placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. t mpf(c96 hx)wa2.j-y , jprbzA 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 Coula8vt qdheknab1z+5 k9w v280 zomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distancs32pboat7+ /klj c,obs2h p1qs 0 u 7(hfopf+fe d. The first charge is larger in magnitude thanpfs,o7 s(fobt+2op7l j31s+kh cup2qaf 0 h/b the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are plbi9jsv 86+k, ld/4r +obu5 .wuo5obnr rpjo,caced near each other on an inblu. o 6r8, j4s/i9k5o 5jrvpob+,ocdwbnur +sulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain forc qzgk7jed*)ekfay i,9 4fz23se. If the charges on both objects are doubled with nj 7kef y2qe *zazidf4) k9s3g,o change in separation, the force between them

  Two charges are separated by a distance d and exert x3u qge24j(.ches *yhmutual attractive forces of F on eachh3xqgchee4(jy. * u2 s other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract(if huq.ytp 1wb32j;t each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the;qutbjy1hitf. (3p 2w 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 by a distance of 1.0 m. What happens to davbl hl/6bu.6p3; bc the magnitb6pl/b vuc3.6ld bh;aude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a prot5kl .tgrn5 k8err, tzmj,oi i8* 3uuq/on are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second elecojnmit/tu ,3kqir8 l .rezkg 5u*,r85tron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens to sjz;l w*3 ymfcil:r(* the size of the force on the proton if the electron is moved 3m :y zwl*ijs;(*lrfc0.50 m closer to the proton?

  A point charge of +Q is placed at-a p+mzb/tiz9 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 th+z-t ambzp9 /ie 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 pl: h8;.m;euaw2w+uoj rf m mdo+v)q3bkaced at the centroid of an equilateral triangle. When a second charge of +Q is placed at onjo+.dw;auq hkm)8 2f bwm3;emru +vo:e 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 isjka 7kb*43bja not a vector?

  At twice the distance from a point charge, the strength of the electrin3 l0lp 38pu6xa (,gckzom/xmc field

  Is it possible to have a zero electric field value bett p0h0 cpyhhv 7r(pg3.x y.kb5ween a negative and positive charge along the linbycp7 v.phtk05.hpyg r0(3 xh e joining the two charges?

  Is it possible to have a zero electric field value between two positive chargxe4h 324oyr qpcbox)o5f sqp 0s1z1f2es along tps 4x4q2 q21s0 bf oo3x)rhz5ofpc1 yehe line joining the two charges?

  Electric field lines nearasc:.-kgtdea 868w :om 9ubx k psitive point charges

  The electric field shoel)7 aso 4.hrmwn

  Can electric field lines intersect in fre/d ,cy +yvro tb-,j-ile space?

  A solid block of metal in electrostatic equilibrium is place y4sut p6i1/hrd in a uniform electric field. Give a statr1hy ti 6su4p/ement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are el/j jv6h.kutlv c1 00oach given the same charge, the electric fj0lhtj6/1kvlo vu0 c. ield (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where ade33( xcodlxk/ )x 1ahi 2j( eu9ca)cn uniform electric field is directed straight upward u(jxa32edcxche/))3n9 kodlxa1 i( c. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibri0emktx0. j pwa/qih6)um near an electric charge

  A positive point charge is enclosed invd-poi+ g ik,,;:iop 37ob )rj*jcroe a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, th)eodo i jr,ob-3;p:o,*ri gki+7vc jpe electric field at a point directly above the hollow sphere has

State three properties of conductors i xg *mbyq-:f.y .tm4hxn static equilibrium.

State Gauss's law.

  The charge carried by one electr fc , lor 2bn,.mx.bo;xnogh; 3x.fvd4on 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,/miwj- alf6-;/iv1x t,o qkbv.i +dv slx de+ charge of +2.00 mC. How many more protons than electrons does this piece of plasvl 1 f imj-k6,a,v+id/bxv+/i;qlod.-wt x estic have?

  What is the charge on 1 kg of protonsyze,is /)k.-hvj*fy4 lts ; rk?

  An atomic nucleus ha/w11x*y)oe,/c xwcpoe+r ic :df h(rvs 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 andyz+eykegxi6*( yoi elpn7a+ev)8 d30 -4.0 mC, respectively. What is the (nlk6vygai)de8i++7 z* oyyx eee 0p3magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, aa(v co 9o+3fgrnd the force between them is 1.0 N. What is the magnitud(gcav+o93o rfe of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How 6iqq4i 2.z1woib-ht sfar apart are they?

  The force between a lx xb.kw,k)0uvfiq:85 fkq5 2 a;qtu p$30 \; mC$ 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. If :o qt 2o2l 9w9(wvq:hv(dzujbthey areu :jw (v2 zolob2wvh(9: dqtq9 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 placed on the x-axis. The first ch+ypl:mcj9y nl o20 uy cm4/px7arge 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 diom j7: c 90xl+yc/yyp2n4lpmurection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis.0lz xpv3(0r*a5yws fs A charge of +2.0 mC is placed at the origin, -2.0 m C to the lw35yzx(ssf apv 0r0* 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 d+,vbi;ck3rgf 6ml9rat 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 the force on the 3.bkl di;,6vrgmc 3rf+900-mC charge?

  A point charge of +Q is placed at the center of a square, and a secon+jxx2ebl y0oxv4n0 nsr y) w8*d 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 of -Q is placed at the lower-left cornyrnx2nxe*+ wvjs0l)o 0 b 8xy4er?

  Q1 = 6.0 nC is at (0.30 m, 0);9h h8*if;qhp,:p zj ob Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitp8q;,b fh9ohpijz*: hude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); ybv1y2b8cm- a*1e,owvaxeh3 r c)r 0pQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net foyy c2 8vr3h1m vrbc)0a*b wae- x,1oeprce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at t7 zns)wgv g,p:he vertices of an equilateral triangle which measnvw) szg7 ,p:gures 30 cm on a side. 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. Atx3ou. +*w1qorcj y5 yz what point, on a line between the two charges, would531qozu.j* coryw x+y 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 kl f/xjj/5z,x 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 forc5lj zx,j/f/kx e on it is zero?

  Charge +2q is placed at the origin and charvguvtz;h r+xnuw 5+ k+i9 s)t)ge -q is placed at x = 2a. Where can a third positive charge +q be placed 9 tk +vivh+5sg+w;nxu)u)rtz so that the force on it is zero?

  A copper penny has a mass of 3.0 g. ovs qw+ )y;h5y3(zuom7hl9qj 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 d dsh: m ql0gh):4t 6hl,k3ijpof gravity by the attraction of a fixed proton some distance above it. How far above the electgp6)j qdh 3 ll40ti:sdk:hh, mron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncozbc*e; ,c9dqknducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repuls c,;k *q9ebdczion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has mw4 z,;cu)hxbe) ira; a charge of +40e. What is the magnitude of the electric field at a di a)mwxe;4) z;bi,chur stance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field atghg(gla/l98mztuu1/ a distance of 1.50 m luu/glz 91hagg/(m t 8from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test ch ,dr mbxsutg)8q q.44targe. What is the magnitude of the electric field at the locatiomqtu4qg,s rb8d 4x).tn of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is thedyq.qrx(k 11 n z1(zxuyy* xl)syo1s ) direction of the eleu11(.y dsn ykzr*s xz11)(q )xoxq yylctric field?

  A 5.0-C charge is 10 m from a small t oa(2u fm 8v czdn/70a4x /pq,kfdr:ubest charge. What is the magnitude of the force experienced by a 1.(ap4mdz c bkxfoa qdu8f0/n :/v2u,7r0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separat+pr(t6im8 (uwcj wf,l;zo: eyed by a distance of 4.0 m. What is the electric field at a point midway between the m8pef cw+l((wt: 6j;ou,zyi rtwo charges?

  A 5.0-mC charge is placed at the 0 cm mark of jkp/ij):p .q0a adfrny24j c( a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric aapq:cniy .r jkdf4)j/p0j( 2field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a metj87 ti9:zr hwrer stick and a -4.0 mC charge is placed at the 50 cm mark. At : wt7rhr8jz9 iwhat point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7. ye;l psv8l23g0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the poi 3l8pl ;svg2yent midway between them?

  Three 3.0 mC charges are at the three corners of a square of9 gd xv3mt0:d+q2qagf side 0.50 m. The last corner is occ +0qq3d dmta 29v:fgxgupied 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. Chagfilj9k 5j 79t* dz1carges 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 czd5t*19 ijlj 7ka9gfmC 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 mCl0h jq 4:jd9zm9mo)mw when it is placed in a uniform electric field. What is the magnit9 w4mm9zj:oj hq l)0dmude of this electric field?

  A particle with a charge of 4.0 mC has a mas+xyz 1511 ty3qsbgzrms 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 field of 6000 N9c /vlwc;mux0/C pointing downward. What charge must be placec;0 9v/mcu xwld on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball ip0sg dz-h,x5e4l6 p y *j3vcyms placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of tl g h*j5dpy pcmv6ezs-3xy04,he electric field?

  A metal sphere of radius 10 cm carries -objl) mfncj40- 8, fwis,slma charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surfsf0wl, m-8 )ijnj4sfb-, cmloace?

  A metal sphere of radius 2.0 cm carries a chm23+p b.+cr ,onwcyxbqe)qzn,q p4*carge of 3.0 mC. What is the electric field 6.0pcmny ,p ,*3z+n+ qq . bwb4orcq)2exc cm from the center of the sphere?