State the law of conservation of electric charge.gf0xui40q 3wk

  Is it possible for two negative c.q8fqr;kf* w7 h onzs8harges to attract each other?

  Is it possible for a positive and a negative charge to attract 3h 8hsyj9g3vt each other?

  A glass rod is rubbed with a:)2():ct xy 9njuk)r jt eibta piece of silk. During the process the glass rod acquires a positivejt:b(a t y2: j t)9kurxn)ic)e charge and the silk

  A proton carries a

  The model of the atom sln (e5l/kn) echows a

  A neutral atom always ha.3v/ fsec1rip s

  An atom has more electrons than protons. -oz ka* embt1 0n9;(am tzjaq7 The atom is

  Materials in which the electrons are bound very tih+o(h -jus zk7ghtly to the nuclei are referred to oz+k7h(js h-uas

  Materials in which the electmshvuu+ )c7 0:*cc3ew kczu-4(u wwi irons are bound very loosely to the nuclei and can move c 3-evmwcu)su(u 7i kwc0c wuh4iz*+:about freely within the material are referred to as

  A negatively charged rod is broughtnkfqvu,by)u(4 i/l )h near one end of an uncharged metal bar. The end of the metal bar farthest from the charge uq/i)kynv 4 hbu,)(lfd rod will be charged

  Sphere A carries a net positive charge, atwddl.-zh/h.(o :fse nd sphere B is neutral. They are placed neo :feh h(.wt -zdlsd/.ar each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively?/-bcd/rt) a7(ia hmtj

  An originally neutral electroscope is briefly touched with a pos)r8z40gi lfnx8j ro +eitively charged glass rodnojglz8+f 8 rer04i) x. The electroscope

  An originally neutral electroscope is grounded briefly while a positively charge4 . 6;rjezmjnnd j6 nn4er z.;jmglass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutralsghm./a7tu 1bp; u/kj+dhibh 2i b;5y electroscope, and the leaves separate. Then a negative object is bro 1/ pbhimybasbk;djh+2 u/7u5t ig;h. ught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an lud3:pp 6k e6q -nnb6 gs18dmtinsulated 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 firstb d3-8k6 ppqenls6 mdg6n:1 ut 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 th4sylq .fu+xt:vyq;epg*w08k 5s td0o e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separath ,k9js k5um0cy ljv(*us *jv.ed by a distance d. The first charge is larger in magnitude than the second c.uy l( j9jjss0 v,k5k* v*uhmcharge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eevq-d7808 qt l urg5vpach other on an insulated table. Which stateme7lep5 gr8dvqtu 8q0-v nt best describes the electrostatic force between them?

  Two charged objects attract each other with a certain 938y ;fw) sxp/rnas5 vtme-bgforce. If the charges on both objects are doubled with no change in separation, the fre5gs-/ bm8)ays39tx ;v nwfporce between them

  Two charges are separated by a distance d and exert mutual arm7 (d vo )oznp 8/3qeem/gu f,id8a6sttractive forces of F on e(p ode i fgdz7m3) a8s,e8/r6vu qnm/oach 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. What happens to to /:z,: hjnlh+i,pwxthe 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 original value? The force is po:+xht,j,ihz /lw :nnow equal to

  An electron and a proton are separated by a distance of 1.0 *, icx1k zdoah ,ho.91ca5-mpab5zbdm. What happens to the ,i1zzd o .ba9dx*b m acao15h,-c 5pkhmagnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are se6mn7di4 tgduc2 5cd 4lparated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a 4c 7gcml5nidd2 u64td second electron is placed next to the proton?

  An electron and a proton are separated by a distance of dz4 -.i/qatbf 1.0 m. What happens to the size of the f dq-t/ z4ibfa.orce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is p8wzw;jex8g4 (f/ rm,5vlndm rlaced at the center of a square. When a second point charge of -Q is placed at one of the square'sx dm,45rw8jnlevmfr(w/8; zg 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 is placed at the centroid of 3a28t+w f3:xnt rs coyan 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. t : n+ox csf3w8ya2r3t 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 ls *9(in dpyme0s qy) t+b;kh1not a vector?

  At twice the distance from a point charge, the strength of the f:g iq2: nrp)telectric field

  Is it possible to have a zero electric field value between oea+6sei 86 krbqt;uogu(zy p9(:+n n a negative and positive cha6go(aose y8u; (+6n+k9:ibupzr tn eqrge along the line joining the two charges?

  Is it possible to havxf a0,u8z5,z r3z 3b8hi q;j eu3.kzfqdfxt7de a zero electric field value between two positive charges along the line joiqzqffk,350u r7dzh jbx.8du x,z t8a if3ez3;ning the two charges?

  Electric field lines near psitive m)v*- feo(rp-eb*vgqf 7r e- hpoint charges

  The electric field shbj.fc4):ve hmat4e f7own

  Can electric field lines intersect in frcy-xu.zp 7fxt /khk*4 ee space?

  A solid block of metal rv7 1.brlu bg6in electrostatic equilibrium is placed in a uniform electric field. Give a statementrvlu1.gb b7r6 concerning the electric field in the block's interior.

  If a solid metal sphere and a holl;y i9l 3 l.aegjo +cobbum2k8+ow metal sphere of equal diameters are each given the same charge, the electric fg3lmba lyuc9++k o. eb;j 8oi2ield (E) midway between the center and the surface is

  A cubic block of aluminum rests ,tm+eko 6z 6uc9 vol ip7mj95lon a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block5op, z9tiljmk mo96 euv l7+6c's top surface?

  If a conductor is in electrostatic equilibrium necaq*cpm gz(64o8ln5 var an electric charge

  A positive point chaou cck+0x0s6:tu ao,xcie 5i(rge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere,:xaos k,c 0oictx5i +uc(e6u0 the electric field at a point directly above the hollow sphere has

State three properties of conductors in stahyx+: m58f f3mi :xyvwtic equilibrium.

State Gauss's law.

  The charge carried by obof l(( q*f/niilt;:d ne 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 many l6d28x+bqgy .eng8aqmore protons than electqde nb.qa2 6lx8+ g8gyrons does this piece of plastic have?

  What is the charge on 1 kg of p,ur xs *bjgr8:rotons?

  An atomic nucleus haan vun;hk/y yhxy :a)n)9+q4x s 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 chajg+np*y7bmy3z h 42cirge values of 2.0 and -4.0 mC, respectively. What is the magnitude mic*ph3j ny+g4b yz72of the electric force between them?

  A 1.0-C charge is 15 m nts+je7) )klr;5y4p,d1uwmi xsqg g4 from a second charge, and the force between them is 1.0 N. Whi4rg)q)yusepwxs l+n7kj4 m 5g,;t1 dat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How fa447q/sto.yumsep* g xr apart are they?

  The force between a h.h/2uau4dil6a; bs g$30 \; mC$ 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 fe2 3u 8w:g-( bqmkod/g yubnh7orce. If they are moved to a new separati wh:b-g8k2q og/( 7umbnyu3 deon 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. The0vd.x v1go74s/ gvwve 12wk72eik,j a 7cxwym first charge is at the7 mc2 ykjvd/w0vg712 e., veovi7wx 4w1a sgxk 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 eoymo32v pw-:2ee 2(oc wmk4wof +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 for(m2 v3cewwo o my -k2eeopw2:4ce which acts on the charge at the origin?

  Three point charges ar6e . gimwi6kw 1r*e(aee located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q*em6 1giw (ak w.e6eri3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the cpx. ,/ lhea5 hfu:fji0enter 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. Whajx5h p f0,lu a.e:/fiht is the magnitude of the force that acts 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); 83t*m6n w udq i8.f:phqh0ojkQ3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nhjh6m88:0 q.qpnfu3i wodt k *C 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 gk.ujm 0+.p wfis at (0, 0). What is the dire0fg.mk. +wju pction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verti sg;7ye.s9jal pqo0z 8ces of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forcpzj807 oss.lq ea9y;ge which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m.rm * :/+biizbyd8mh (ds0dt/s At what point, on a line between//bsdi r*h dmbsiy(d :t8z m0+ 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 chargew*yg:woln 4+t is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force ont nw:*ywol4 g+ it is zero?

  Charge +2q is placed at the origoz vs vhqqoz306*pu85 in and charge -q is placed at x = 2a. Where can a third positive charge +q be pla8opvzu *3v6sq 5zhqo0ced so that the force on it is zero?

  A copper penny has a masz b(1wmfmcf99v cz;( hs 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 attraction of a +w5vz68b1hurb0gysp 3ghe9 cfixed prot581gzvbebgy 6 pc39rhs w0 uh+on 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 nonconducting thr9hlp6z:e5px* / xzoxieads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them ape6pp*z x zix x:l95ho/art 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(mcr )tqk *(knj2aw2dic field at atk2 jd2w*n qkac()( rm distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electr/8w)5swrd s vhic field at a distance of 1.50 m from a hd8wvs 5)w r/s50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. sq1sq tz(qm+5)g g:cp What is the magnitude of the electric field at the location of the test charge?sp)gsz5q q1tq+g: (cm

  A 5.0-C charge is 10 m from a small test charge. What is the dir n;pcyj :+8pblection of the electric field?p 8cybjl+n:p;

  A 5.0-C charge is 10 m from a small test charge. ;8s tdnkgy)z)9zh** 6ebwqiv What is the magnitude of the force experienced by a 1.0 nC charge placed at the location ogkq)n h** 8d 6tzv b;)i9yzewsf the test charge?

  Two point charges each have a value of 3.0 C and wrsi criv6u7+c3m1 7chz y4 8xare separated by a distance of z87+xi4i rrcyh 376w 1cmscv u4.0 m. What is 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 me+/b p68vishd z:k6lctter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electritzbp:svc lhi+ d/668 kc field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC cw 8. xswf+*nanharge is placed at the8*n+xn.a ww fs 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 antwq. 05 zx9xjyi(blc .d -7.0 mC are placed at x = 0 and x = 0.20 m. What is thb (.5wti .cj0qyxx9lz e magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side y 0gx3r55psgza wbgm.8l:pv/ 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fieg xz35: ypgw r .pgvsb5/l8am0ld at the center of the square.

  Consider a square which is 1.0 m ono.r4 ymuk53-q2nwz-kbc)bc p 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); nz3bympcw okc -q)u4 kr b-5.2 -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 of 5.0 mC when it is placed in ww5rnw :qe7*ga uniform electric field. What is the magnitude of this electric fn 5eqw*gr:7wwield?

  A particle with a charge of 4.0 mC has a mas-:qa hkeg5wii .8 ;n6t ypzmo(s of $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mhzrg5a d hf1p9+k g/u7eg:o :uass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it toduk:fg95 7 +rhghp/ :zae g1ou be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed h jwwo38 6hc4pu;7 rwd(ih qsqgz9,2cinside a uniform electric field, and is suspended against the force of gravity. What are the mago2 j u pr4w,68zhsw;dg73i hhwqqc 9c(nitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 my/oml sh e6j;./9 h6fueldyd*C. What is the magnitud/ ydy9hm6e6jh*/dlufe so ;l .e of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carriq9(2 uvs/fw v*sg(dbvl)dqf+ es a charge of 3.0 mC. What is the electric fi(d ( gs)qlvq2vufs +9vw*db/feld 6.0 cm from the center of the sphere?