State the law of conservation of ele:sbi xhz8 br:/4cu er4ctric charge.

  Is it possible for two negative charges to attract each )x-2ge ry gm. ty( ;hr3hwxsp/other?

  Is it possible for a positive and a negate cr *-b/8vxgoive charge to attract each other?

  A glass rod is rubbe; d t1mrhi(cfm c*,yr+d with a piece of silk. During the process the glass rod acquires a positm ctr 1yd(hmc if*+,;rive charge and the silk

  A proton carries a

  The model of the atom shows qruua d yt(,;ipwa/om(76 pfopy i17; a

  A neutral atom always hass1 (yb s;u utqp48kl9d

  An atom has more electrons than pro:(qse 6m b) ysjnxt0xhm w3*e4p/ y.petons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei r-goes lrz,n5)h e7v9wvg k l xx,9z.*are referred5rkxnw.v9 ol,s *)x,h z-ge9el z7g vr to as

  Materials in which the electrons are bound very loos ,*cob j(c*islgov k7g w-0.ooughd6/ely to the nuclei and can move about freely within the materialskc0j / (lcd6*oo* 7ugwhio-,o gvg.b are referred to as

  A negatively charged rod is t7 m*jk1gpa0f brought near one end of an uncharged metal bar. The 7mptgf1j 0*kaend of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and spher9*6ed wc 7s 5s*yvukk juz(2mwe B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touchsc 2v69ww j5uzuk*yd7km(se*ed with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electrd-g6epguk +8/h v* xoboscope positively?

  An originally neutral electrob8 n gg+n:5;lrq2-3):ot srdxonfz jlscope is briefly touched with a positively charged glass rod.b 8:+s frgn:r t-z ongnj;x 2o53llq)d The electroscope

  An originally neutral e4nzv7h n-ugh. g1k1y8 t0eif nlectroscope is grounded briefly while a positively charged glass rod ist1ginv nfh n8e -zk1 y.407ghu held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the li77 jvzkkf43 peaves separate. Then a negative object is brought near the electroscope, but does not touch iivpz j 74k7kf3t. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral me6 y 2e,;zx5qlgbx;ix un 6ke9rtallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed by the f6xxzb xlgi r ,629q;n;5eue kyirst 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 l2baob71jrzy 6bkw 76the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is l +asulku, g*y/el)+ haarger in magnitude than the * aa+k)+/ylseulg, uhsecond charge.

  Sphere A carries a net charge and sphere B is neutral q 0w/yha/ 2x*-ju2rytmrq0ut. They are placed near each other on an insulated table. Which statement best describes the electrostatic force between t ywt0rjru*hqm/ a-2txuq /y02hem?

  Two charged objects attract eacvqf* d.h or3l .2;r( gmtibs 7iv7mgo-h other with a certain force. If the charges on both objects are doubled with no chang qg;t-l.bmr77sf3 h m do2 ov.ig(vi*re in separation, the force between them

  Two charges are separated by a distance d and exerttu 8i4 v9k6cfv mutual attractive forces of F on eav894 fuv6c itkch other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other wi: hr( +hh(o(6h-pc k qj7ilbkuth a force F. 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-fourth its ori h okk(jcp hb(q (7+:hr-6ulhiginal value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happq/leaqqmm48uu9 p,( z ens to the magnitude of thezu/9le8mqp qu(qa,m4 force on the proton if a second electron is placed next to the first electron?

  An electron and a proton:xi((sfhzq x 4 are separated by a distance of 1.0 m. What happens to the magnitude of the xsz(qh f x(4:iforce on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens rn49 +q0n)pxnev i;vlto the size of the force on the proton if the elecenlvxp+n;i v)q0 r94ntron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a7n1h(lh6bxm; au i*0 qed+fcn 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 the square. What is the magnitude of the net electrostatic force acting on the positive charge at the ci efh6x0l qbc;1(+ dnuhm*na7enter of the square?

  A point charge of +Q is placed at the centroid of an equilateral t996 0yuldjoxib9-mth riangle. 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 h 90 j io9lum6x-bytd9+Q placed at one of the other vertices?

  Which of the following is not a v zv55l5 hneoya07kme+q3 s-su u s)e(mector?

  At twice the distance from a point (e 5ri yfzn5cz84tyg;d f)cx /charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negativekxe3 bv6(; 11hkuzmmfvfx 9g+ and positive charge along the l;m1hfkx v 3+kgz m (e9u6bfxv1ine joining the two charges?

  Is it possible to have a zero electric field value between two positi rdmne;n:ms:+ve charges along the line joining :drnmnse+ ;m :the two charges?

  Electric field lines df(n,zdy1 l pk0+izb9 near psitive point charges

  The electric field shown f6(7r )jkvzj j

  Can electric field lines intersec j(7r0+b(frer e ;gg b5z2w 1za8awe-tohiz6u t in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform eleobm ;j g01y/-t+ nmvkxctric field. Give a statement concerning the electriyk vmg/n;+b mojt- x10c field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamet158zv-xzr r g yj5ah r;o5i4djiq34qfers are each given the same charge, the electric field (E) midway betw ry4rrz qai4hfq5z id15 ;g53vjox8 j-een the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where ayn zo9.f2mhd/-6 bqrn4nsr )d uniform electric field is dirqn.dm) fhr96 d2r-4nb o zys/nected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in elec95/l sat5 ukbbc8vb7.,(l9tqe cgk rntrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that i ygp*n5le/5zowwtp+,s grounded. As compared to the case without the hollow sphere, the electric field at a point directly above, o 55e wt*ngz/l+yppw the hollow sphere has

State three properties of cor0di(6r amn 1hnductors in static equilibrium.

State Gauss's law.

  The charge carried b;p 84vk9gfj ozy one 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 o*g7k ri- ag-7qc5bk pu4egja0 f +2.00 mC. How many more protons than electrons d 7aq gik*a-gpkbugr- ec540j7oes this piece of plastic have?

  What is the charge on 1 kg of pro0 r)ml9h5ie0d vrv5tntons?

  An atomic nucleus has q f9xvp,8 u am6w6id u.y4f5xja 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 -49k96v- mivhrb .0 mC, respectively. What is the magnitude of the electrm96bvhiv9k- r ic force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them 7u*niyj-g y(t hu51gn:dqwm2 is 1.0 N. What is the magnitude of the second cmdgt gw(jyq2yh n*n7u 1:i -5uharge?

  Two 1.0-C charges hahw 10gb8 mlb6ove a force between them of 1.0 N. How far apart are they?

  The force between a 7 y jod5xfd; cgai0)-s$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiall zil 9p))vhfgy;lsh;;y 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is t )z py ;hglvsl)fh;i;9he electric force between them?

  Three identical point charges of 2.0 mCmf2l re:67zkbzp9j 2c +w6wf mq;l3qu are placed on the x-axis. The first charge is at :2lq+6 kwq26 um9zbwrem pz;f3j7lcfthe 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 force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is plac9+ qzats3tk 2ged 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 which tg s+ztaq 2k39acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at(y kmiz ugl35( x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 kgu(y zil(3m5m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square,vj7kt3;ag(8: 1raslq sheba 9 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 chargbqat97g j 1a8eshk(a vl:;3 rse 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 nCy az,wvtd:.(t is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the z.:(awtvdy, tmagnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0) z998pdrweos veg5k,y9d.am6; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What i rm e8 d96awgz9y5vsk.p o,ed9s the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at bz/ip s.0orus9+d8bh the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the /h .ri80so9pbdz u +bselectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separa) p-uh7v6hu)r7 bs5du tg+f gbted by 3.0 m. At what poip v5dbs6r u fg)7hhub t+-7g)unt, on a line between the two charges, 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 attm83 4dnw ycu 94kbr6i x = 4.0 m. Where on the x-axis can a third charge be placed so the net forcen m6tw4k ud4cryb93 8i on it is zero?

  Charge +2q is placed at the origin and cbint0bz -r iy(,h(9dv n/znd4harge -q is placed at x = 2a. Where can a third positive charge +q be(dy9 i/birvn 0n,(tbdn4 hz z- placed so that the force on it is zero?

  A copper penny has a mapdak1:q j(4,ty sx ln+ss 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 by the attractbj p wb1xbn448 n)vvi0ion of a fixed proton some distance above it. How far above the electron is the proton bixb0j8w1nvvb)p44n ?

  Two 0.20-g metal spheres are hung pit2;gzt ru6*from a common point by nonconducting threads which are 30 cm long. Both are given identicgputtrz6; i *2al 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 magh6w l* ap q;djq2ob31znitude of the electric field aq j1a dhl2zp *qo6w;3bt a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a d+m oek *+5,il4gidmpmistance of 1.50 m from a 55k4++pmlo, i emmd *ig0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. Whajk4+rusb(; vrt is the magnitude of the electric field +vu;r4b k(jrs at the location of the test charge?

  A 5.0-C charge is 10 m from a small test cuqc ch.f xbd6dlw/7 :/harge. What is the direction of the electric field?6fdh/cc7 q/uw db:l.x

  A 5.0-C charge is 10 m from a small teswtfxkj8om -2p + uxsz;7;i:gbt charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the loca2x:xk+pu-wtfs 7; jm ozbig;8 tion of the test charge?

  Two point charges each have a vasr(: x:11+jbnos 0 xsovbhg 2hlue of 3.0 C and are separated by a distance of 4.0 m. What i:n2osxrogvx0bh :+hs1 sj(b1s 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 cnxy, y i3we3nbw tdtcs+j-.6 b z/gy+0harge is placed at n6j+w . si/,wdtex ctn b3yy+gb0yz -3the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is pl*in211t8 yq5zln -ah *hmgysiaced at the 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 isylgn1hyt*s 5n- *8zi2 1mi haq the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.2u d*gltllt 7 nehg/419)m )g/m/kub ji0 m. What is the magnitude o7dt/b/ 9 em1uglh/4k)j lm tugg inl*)f the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0*umk0d phr98mfupji;q 2u1 m7 .50 m. The last corner is occupied by a -3.0 mpmhq 7kp0;ur 1j*u m2 i8fmud9C charge. Find the electric field at the center of the square.

  Consider a square which is 1.0:w, 4e/m slfry m on a side. Charges are placed at the corners of the square as ffl,4 /r:smy ewollows: +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 ono1sk m7r y5ywjso 0-q0 a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric fie7ymr0s5 k-wyjo1q0so ld?

  A particle with a charge n(ann/xohvq * (7 kbl9of 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 0.120 g is placed in an electric field of 6000 N/C poijbb4 k8 y)29 n:i(wizenhx* aorq4q,gnting downward. Wha(8yn4)b2xob iq :nq zjrea,h9 ik* wg4t charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2a8pjbo4vwyvvm 6-,h 6 .00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and dim-wyvob46a phvj, v8 6rection of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the ma(mnf*-e36uttjrib+ tn. 7ctegnitude of the electric field tt+irbcm7*f n 3et-n et.(u6j5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chj rrkz6(sslv22h x5)g arge of 3.0 mC. What is the electric fih r5(kr2x)zl6g ssv2jeld 6.0 cm from the center of the sphere?