State the law of conservation of el3nofrz.-tsaxr/: w87zbi m n+ectric charge.

  Is it possible for two negative charge cop -xy9px/ yt9fzu2:4vx3 rhs to attract each other?

  Is it possible for a positive and a negative 2gi++w)gjq( pa9 qx4wtnjh7h charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process 6dbrx9 nj38 2l;x d4tvflfy) athe glass rod ac 34ln;ff9 )rxdbxd y2j6ltv8a quires a positive charge and the silk

  A proton carries a

  The model of the atom sh;25z;s;xhsav nal a*n ows a

  A neutral atom alway/ ;ahjxaw24 dds has

  An atom has more electrons t k5l7j2+ff.zlku 0yrh)n6 epahan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei a vr-1/ivba 3woriipaxbr7 03.xcr:f + re referredbci70r 3par/r+oxr-i:w f .vabi1xv3 to as

  Materials in which thce yqx6dagpl4c* s()+e electrons are bound very loosely to the nuclei and can move about freely wit4pad+q)se(y c cglx*6 hin the material are referred to as

  A negatively charged rod isb +,ki6cqd 5 ds qyj(6o,ci(*ycxkx8 k brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be c (qo+*6,ckdcy ik ykqc (6x i,bjx85dsharged

  Sphere A carries a net positive charge, and sp(2jy p9idahx*8im ie8here B is neutral. They are placed near each other on an insu m8iead9jhixi p 2*(y8lated 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 poce5 ct 9)msqj,sitively?

  An originally neutral electroscopeoj 6 fgifutf8d9- 2*;j1ig wak is briefly touched with a positively charged glass rod. Theufj 1ggtiadf 2fo9-k8 wj;i6* electroscope

  An originally neutral electroscope is gro3a1zw4 rox 3 f-f-ixr f+w(uk-e1e (kvn m;hlqunded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electro+u fiwf1r(onk1 h- kfx- m3aq v;3rx-e(4wezlscope

  A positive object touches a neutral electroscope, and the leaves separate. Then 3 re.2kq4r cwsx 68g1yyaeh8x a negative object is brought near the electroscope, but does not touch 4g16 sxarqwhre8y.xy8 c3ke 2 it. What happens to the leaves?

  A large negatively charged object is pla knkw3,du;v )aced 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 firs u,;)akw3nvkdt 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 coa,;hcx ys *l/g6:q5gcty as*qnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first c 69p2y is0vcsnharge is larger in magnitude than the second charg0 csy6v9i2n pse.

  Sphere A carries a net charge and sphere Bv5w xk /ya*h3nnkgj6,/j wyv8 sbt5a7j4+ iss is neutral. They are placed near each other on an insulated table. Which statement best describes th8iw5s3ht 5s6xn+/yvabg74 jn v,ky kwas/*jje electrostatic force between them?

  Two charged objects attract each other with a certainme;*.gf)8y nb8 q idjp force. If the charges on both objects are doubled with nijye.bgd; nm8 f)q8p*o change in separation, the force between them

  Two charges are separated qfj(m1b3 bww3t)kt8 r by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, wrtmbtk 3qw38bf) (j1what are the new mutual forces?

  Two charged objects attract each othe tse-wy)47ahveu 3 ka/bdno5 6r with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation d syua vth ab6e-5oe/)kn37dw4 istance 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 * ):g-vno fdru7jup;gx0 +hyl0 f ek.ma distance of 1.0 m. What happens to the magnitude of the force on th jg0dm0:lpx y7grfn-* ek ;+ufho)v. ue proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happ.f ifv4* edk,bens to the magnitude of the force on the first electron if adikb *fef 4,.v second electron is placed next to the proton?

  An electron and a protdkvq*i0q)eoxpy n; ,5on are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is oiqx0qe, n)5vy;*pkdmoved 0.50 m closer to the proton?

  A point charge of +Q is placedj2tvh2.h1i o5l t-vdb 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 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 vv21.h-djt ob2ihlt5charge at the center of the square?

  A point charge of +Q is placed at the cen2u;+ )a v8o9qlnuwi bntroid of an equilateral triangle. When a second charge of +Q is placed at one of the trianglui 8;au9l)nob n+qvw2e'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 is jjzal9d7p1 z.(vmt 7vnot a vector?

  At twice the distance from a point charge, the strength of the elec4grqi+xb : a1mtric field

  Is it possible to havednm:,v7fw 8s ;ia4bfc a zero electric field value between a negative and positive charge along the l4cwivaffnb8,;s:7m d ine joining the two charges?

  Is it possible to have a zero electric field value between two positive //) o9 sh:jxxfzcxx9eci:a 4rcharges along the line joining the twoe c:ai)zjxfh/9 :/cox 4 sxxr9 charges?

  Electric field lines near psitive point chgjqy5 w3:p:f2yt; kbcgmv; w2arges

  The electric field shv wd:vyc or5,1own

  Can electric field linetv7 i;pfbvjiotn0gqh(*6/ tyq 3 g;p (s intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform e.9z9omal pgkyu w+v2 /2q5poe lectric field. Give a statemeoulk.zp2o9 m9ea y5v pw +q/g2nt concerning the electric field in the block's interior.

  If a solid metal sphere t oc+,l3x fano(k9u8cand a hollow metal sphere of equal diameters are each given9,f l83co c u+(txaokn the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a woc p 3blw2r()ytk hn+e3oden table in a region where a uniform electric field is directed straight upward. What 33+ph) wt( lk2rn ycebcan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nd ,x/4 jybq8fyrtp :p)ear an electric charge

  A positive point charge is enclosed in a hzd8-sk: 2-uqsb i*4ate1 ulnhollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point d:eqs- *2n ithsu uzal8 -1dk4birectly above the hollow sphere has

State three properties of conductors in st,d t+:,znalgt5coao2val t 9 7j.h 7ffatic equilibrium.

State Gauss's law.

  The charge carried by onetcry rfx z116tk d8paez62k.;x( j6bp 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 more protons than eleag+7-sgrngc 3pz 6 k+jjh )nw1ctrons does this piece of pnpg1ghzjjga)+7 -6 kwrc +3n slastic have?

  What is the charge on 13pnufcnju 1wu x):l+9 kg of protons?

  An atomic nucleus has a ht*e ;9b w;+ 2ln*f8+h wyysbs3lj:uzum q,yg 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 cm5ja86j3*a vyf ucg -kdwd5d6r, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric focd wf udjd6aryjg53a k*8v56-rce between them?

  A 1.0-C charge is 15 m from a second 8zqztr a5kz30 charge, and the force between them is 1.0 N. What iszz 3kt0r5qaz8 the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0lo4vx7gpd tgbyhn7f) .v w7/ /wlwd3- N. How far apart are they?

  The force between a 3tkxm:20 ( oz/*sifer l 5cqpb-owr* m$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm ax ,8tw6fbm bf/part, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force bebf t/wmb86x f,tween them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Ti +d8vqnpt.du4z9 lc mhy6bjh06m+9 ghe 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 d0yl4 9bu9ddmjnpgc h 6mhq++z6v.t8 iirection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axih2*,ugtl 8 bp 3z:fjzkj u.q:fcdo b/8s. 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 m b d ou2uq3/b,*f :zk.p:zthflg8cj 8jark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x6s yeidm /3ag d*w i8n sufienq3z-+se/kw107 = 1.00 m; Q2 = 3.00 mC ek d*nzwqi3i8m3/e/7 -d0+ ng6iayweu s 1sfsat x = 0; Q3 = -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 center of a square, and a second point chag1-ave. x1p,tksj 6uc(:gy xnrge 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 t1jts1y a.xgnkx 6 :g,p-(ucevhe 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 = -h/n3e/ zsm 5b 8i)tormqp/p n81.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on theot)s3epm5ip bzhq 8/r8nn//m 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1..6c kvcvot)c80 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the nec) ckcvt86 v.ot force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an p, -xvo.xu9 wwg8oai4 equilateral triangle which measures 30 cm on a side. What is the 9-o8pxw xv ogu 4iw,.amagnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, 9g,v m)wln1 ocwhich are separated by 3.0 m. At what point, ong9ovm,c )ln w1 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 a 6svi -oy(su5xt x = 4.0 m. Where on the x-axis can a third chsiyu 6( o-xv5sarge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. 7e-t yne ,1by2p ns5eu Where can a third positive charge +q b,7ene21yyu -en5bts pe placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total x7zy2l yapz4apm 1cgdw- 74ya .2j sy)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 git2 vrraghv5ab72 r8 7ravity by the attraction of a fixed proton some distance above it. How far above the electron is 82bahtr75vr ravg2i 7the proton?

  Two 0.20-g metal spheres are hung from a cau3+9pdjsc +nb -on 3qommon point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsidb 3ncja3p+n u9+q o-son 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 +4;ulsyb9 q8j0xe qiv:5 0e. What is the magnitude of the electric field at a distance of 1.0 eix:8;yu0q 5q s 9bvjlm from the nucleus?

  What are the magnitude and direction of the electric fie vrrl0/oy (0f 4srpe-nco:k v:ld at a distance of 1.50 m from a 50.0-nC ch:nvolf4/ ok:rr(0 cv-sr pey0arge?

  A 5.0-C charge is 10 m from a small test charge. What is the madk*sg 0 1mztlvk)dd 5oh+,6bn gnitude of the elkh+k51)ovs,znd0tdb *d l6 g mectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a sm1a3izp(ehka) all test charge. What is the direction of the electric fiel3(zi eaphka1 )d?

  A 5.0-C charge is 10 m fr1f0mx/ixv ;tl hmb39a om a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the locatim0ha t;libf/3x m 1x9von of the test charge?

  Two point charges each have a value of 3.0 C and arhy1+g2 g5djdc e separated by a distance of 4.0 m. Whd+g2yh1 5cg djat 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 metao :h o1ed9:ed;r eh-der stick and a -4.0 mC charge is placed at the 50 cm mark. What is the er o 1h de:da;-ed9:ohelectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and tgb;eg q1zb*2a -4.0 mC charge is placed at the 50 cm mark. At what point on abz *g tqb12;ge line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 mdbekpfpb4n jsf3qf j9p5b0tav ,0)f ;-1b:b f. Whajf :5jq;ppknb9,1b bvff f 0astfb)bd30-e4pt is the 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 0.50i7j.v lhuw9i:mc,5 zf m. The last corner is occupied by a -3.0 mC charge. Find the electric: uc 5i79f wm.lvji,hz field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the fuet;9 xq)p2h *vc4hdcorners 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 electri2vhq4 p )fc;*x te9dhuc field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a unifocbuipe )vy:9. :n u;curm electric field. What is the magnitude of this electric f. unip ;:e:9vycbc) uuield?

  A particle with a charge of 4.0 mC ha*d3rhagtnw((a*8 zoes3 n6zus 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 is2tl*sm *qv5yd placed in an electric field of 6000 N/C pointing downward. What cha** sqy m2l5tdvrge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.15 z,23 .1nv5vbwuu; zic)btl nt0 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the2wbblut) ; i5z.u 3cv,z1 vtnn force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 -hya dead0:z3 vk2xl5cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from t5ex- a0kvdzal3h2: ydhe sphere's surface?

  A metal sphere of radius 2.0 cm carries a chargrmcho l:;li,ew//;f i e of 3.0 mC. What is the electric fieeiloihfl;c//,m : w r;ld 6.0 cm from the center of the sphere?