State the law of conservation of electric charge.)8)to dnpfr8 p mr4h/m

  Is it possible for two negative 4x2xgm0 g:-(p sujwjmcharges to attract each other?

  Is it possible for a positive 7u /v q,8wpri,kckf, land a negative charge to attract each other?

  A glass rod is rubbed with a qeokfw7a27pf3l. wfg8 -q2ku t. 4zcopiece of silk. During the process the glass rod acquires a positive charge k 2-.etopwg q8f23o zk7 l7fa4ucf .qwand the silk

  A proton carries a

  The model of the atom shaw -u s.4wjm2zs bmx(4ows a

  A neutral atom always xbr3kwt*6 dd6 has

  An atom has more electrons than protons. Thtr7uej*.ufpue(abg 3s a;.r5 j8xwk7 e atom is

  Materials in which the electrons are bound very tightly to the nuclei are ref ufgm2 61zc3: ucc p9kae7 ippxaox;*o19rp9oerred tom puco12;ucp3caz9r7i1x e :fk9 xo9*p6poga as

  Materials in which the electrons are b wwb m+ y*ab1afmv:f5a4t-xxza0 cq3:ound very loosely to the nuclei and can moveaa -+vxw0b bt5:yf:m4c*1mw a faqz3x about freely within the material are referred to as

  A negatively charged rod is brought n jky8,bqvf*9 wpt7b7 jear one end of an uncharged metal bar. The end of the metal bar farthest from the charg jjk ybf*p8q7,w9v 7bted rod will be charged

  Sphere A carries a net positive charge, and sphere B is neu)7 eetyfyr*7v tral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is 7v e7)e *yrftygrounded. Which statement is correct?

  How can a negatively charged rod2rzse ophxr*87e y*a 3 charge an electroscope positively?

  An originally neutral electroscope is brief y4*x6e moqaebf1-u7hey 2 6. .hfoztoly touched with a positively charged glas eaffh*4m.. x71oo6o u h6-et 2yyqbzes rod. The electroscope

  An originally neutral electroscope is grounded briefly whileeuv;* lsk59tc+v bl0c m*a (qf a positively charged glass rod is held near et; kq*bfa s 0v*+um(c9clv5lit. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Then(07t7gx rwc mid:2e)6bfei mn a negative object is brouctm2 w6din:r e7 eibfx7m)( g0ght near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged obtuhrigkk l /c/d58p/ a(/pry -ject 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 al5/lu// rh-ctykk pg(pri8 d a/ong 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 Coul(1ldj3xw7 uu zomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firn.3zy) 2dfq/kv mf5pz st charge is larger in magnitude than thefn.p )3fzy2q mkzd/v5 second charge.

  Sphere A carries a net charge and sphere B is neutral.azhw7-*zo7 9ccrpohs4 f yi runq2 y9wd+x *)* They are placed near each other on an insulated table. Which statement best describes the elecu9sw hno*xco7q 24awy rp-c +zfr )*z9*d7yhitrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges on k3v wxo dd *(bm/g(pn/both objects are doubled with no change in sp(dn v/ od/(k *bg3mwxeparation, the force between them

  Two charges are separated by avdbz-v;6 f0 0z04+ljxzbl *pe lh6rjg distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what avjllh xg- z006pjb 4l6er ;vz+f bz*d0re the new mutual forces?

  Two charged objects attract each other with a force F. What happens to th+r skk br;uu8t a 7 wocds-8j0,df14xle force between them if one charge is 48frk;xsjo,dl8r kwu td17s -u0a bc+doubled, the other charge is tripled, and the 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 happenswhwmjb8v/ 2e 8 to the magnitude of the force on thjehv b w/882mwe proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of l.)we4ni f+ievsd t5( 1.0 m. What happens to the magnitude of the force on the firsts.4 )(ifdevitn+l 5we electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 v04x3kau 2*x.orri3 qstj,skm. What happens to the size of the force oas3,i sk.j o2ux34vrtxqrk 0*n the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center oms ija+hdx: dk v--o;6f 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 xk dv:j6i-aoh; d+s- mforce acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of ah (jnx3(c3h-snv i s6tn equilateral triangle. When vnh (i3t snx3(6js-hca 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 +Q placed at one of the other vertices?

  Which of the following is note/7i,yrk als63 z r3od a vector?

  At twice the distance from a poin 21fxywb lgrh75 ,hu.mt charge, the strength of the electric field

  Is it possible to have a zero elect1gi-jm7q:9xbinmzi/ rfm3zfm f 8 :6iric field value between a negative and positive charge along the line join :i1 /f-mmrfbfmzjm976in ix :igqz83ing the two charges?

  Is it possible to have a zero electric field value xxogl1v*9pfh v-( mw 3between two positive charges al opmwv(*f 9xghx13-vlong the line joining the two charges?

  Electric field lines near psitive point chargesum;z; /erdb;p

  The electric field showiam umhw,(p/3 n

  Can electric field lines intersect in free spaw 0y 1dp,lpjvs.d6ah+71e7 cs+ 1 8gnbezcle nce?

  A solid block of metal in electrostatic equilibriumvu* 9egm *bmj01sy(r f;yk+ey is placed in a uniform electric field. Give a statement concerning ek0y;yfb1ey sm9+*(j gvm ru* the electric field in the block's interior.

  If a solid metal sphere and a hollow metal spher :i 8xk/lq0zbte2x9 *jm,zjx ve of equal diameters are each given the same chaj tz80,kj m 9*eilxzxbxq/v2:rge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum 96 owfnotix25rests on a wooden table in a region where a uniform electric field is dwo 9t no6xif25irected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equ/m 79xvqdo l j(.h8jv2z2ik bnilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groun , gaftifsof af. (* f)2mqtfq2s 2ij2cr7se,4ded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow spo)m 7cr(te*jfi22 q2a4 .f sstffg a,qifs2 ,fhere has

State three properties of conductors in statu9*36;vrw ww qrua x(n-p+rn nic equilibrium.

State Gauss's law.

  The charge carried by one electron is r;r25by j juf :gx3hhgie,a6 8$e = -1.6 \times 10^{-19} \; C$. 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 mmum y/291b mvv ow00baany more protons than electrons does this piece of pbw/ 0v9amybom20 vm 1ulastic have?

  What is the charge on 1 kg of profro;t +j0m*mn 6)l m6kxocle2tons?

  An atomic nucleus hags1b9g j /n;eo+n 6jrxs 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 charx o6 f8lnkgt+:fu9qk *ge values of 2.0 and -4.0 mC, respectively. What is the magnitude of tg*f fonq xl k+u:69k8the electric force between them?

  A 1.0-C charge is 15t c f)ubudi43o.5k)ti m from a second charge, and the force between them is 1.0 N. What is the magnitude of the second charge?i)4i )fkdbtoc. 5u3ut

  Two 1.0-C charges have a force between them of 1.0 N. g, j/k;iy1po,+ulvpb How far apart are they?

  The force between a hh 1 f.ticu7u:mnked7-g5bm : yh+r5k$30 \; mC$ 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. Il(v/ n, i7lrww hk:87p /cfqrrf they are moved to a new separation of 8.0 cm, what is the electric for/r/hk8qfrli :vwc7 lw rnp,7(ce between them?

  Three identical point charges of 2.0 mC are placed on the e.cz nx orh0fg(.fk., x-axis. 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 direction e n0z,f (c.fk .rhx.goof the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on ttoy6wm i(q8v1he x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C toq1yvtwi( 8 mo6 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 acts on the charge at the origin?

  Three point charges are located at the following positions:*n:rbw7u (chk Q1 = 2.00 mC at x = 1 hc7:wnu( rk*b.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 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second po7gi3+z/+tly y vau d*jint 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 corndvzjga t*+ul+ iyy 73/er?

  Q1 = 6.0 nC is at (0.30 m, 0)f 23bpkh)i k1a+m(ocf; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, h3(fobm f1a)pc ki2 +k0). What is 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); Qmp z/ n7uc1m kd6j;o2r3 = 5.0 nC is at m/p 6 1oud2cjmzn7k ;r(0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are prwy:kkoyqqq.8 ar.h 42d lh (5laced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the e k4.q:hawkr5h 2yly do(qr8q.lectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whajz)o+txav,+ 1 ac7gbp 7h9m kat point, on a line between the two charges, would it be possible to pm1+pa+zca aj,7hk t9 v b7o)xglace a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin anv r gsy ;(1y:a-usupc y(xebww8j3u: *d a +9.0-C charge is at x = 4.0 m. Where on the x-8bs a uuyj-:w g(s wuv; cxyre*(yp3:1axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pl9*mgd px 7i ca/l8*nhuhzl9 eng0(1q; fgvm;faced at x = 2a. Where can a third positive charge +q be placed so thn0gxh17; um;8 *9fvp/g*9hncil m gqfdz (leaat the force on it is zero?

  A copper penny has a mass of 3.0 g. A total 3se:9l q2d g9skjg pu+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 byhq g j/ n5 nvcuaa *kg4*l;pls-8f;9ye the attraction of a fixed proton some distance above it. How farapjgl;c n/ly*a4u 98nhsgkv *qe-f ;5 above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threadsagiz-p- iqrc 5/rm,/e which are 30 cm long. Both are given identical charges, and th/i m/5 c -rgieprz-a,qe 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 +folh;n6f0e/ b y3acb 240e. What is the magnitude of the electric field at a distanc ;bo02nf 6hc3 a/beflye of 1.0 m from the nucleus?

  What are the magnitude andrp4xaoeo2m,cr+ h9. i direction of the electric field at a distance of 1.50 m9ohoxa ipr,2r. m4ec+ from a 50.0-nC charge?

  A 5.0-C charge is 10 m frx+7/kd0 +duxq6 : +uwduhhzk, 6nq rraom a small test charge. What is the magnitude of the electric field at the lhk6,+ un0qxzx/r+wuq dr a k6uhd:7d+ocation of the test charge?

  A 5.0-C charge is 10 m/d. ayl 8(5mt( 8q)thad,b o+bii fwyz from a small test charge. What is the direction of the eyolai8,(f5y bi/ zd(8d .at+b)mhtqwlectric field?

  A 5.0-C charge is 10 m from a small test charge. Wh-hdg6r bmw1 /dat is the magnitude of the forcewb/d-grd16 m h experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a v/ u3q., lod mtcva5n4falue of 3.0 C and are separated by a distance of 4.0 m. What is the electric an.vqom 4 35,tulcdf/field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark q)n8 u-+j.k3uf7f9arl ubelp co9ij5 of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm j qu e-. 9jlpcf8oun)b7 u9fk+ra5li3mark?

  A 5.0-mC charge is placed at the 0 cm mark akjzf9 +whsepgib0 cmc(3/ 78 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 cha8bc h w7ce +szi 3mp/0g9jfk(arges is the electric field zero?

  Two point charges of +3.0 mC and -7.0ly-q20 ivo.qo mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fiei.0 qo-q2ov lyld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. Thecte0j w(c96nx9 i0p xf last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the sq ni(f0j6pew c0xtx 99cuare.

  Consider a square which is 1.0 m on a side. Charges are placed at tyj(5mqwqg-: ht zok(8 he 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 a5q j:gh8(qw -y(ktomzt (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:9e 8hvq o;ba(h8 c4gbx ejiq, a uniform electric fieldjbq8x 4o9 bh:v8gie(ha ;qec,. What is the magnitude of this electric field?

  A particle with a charge of 4:b1ykr s dc; fyh2*h/u2azxp6.0 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*8x -gxv pi:8nnoa;0 u)f bioqb kqp n-)2ics//C poini:q; c0)np x- q)if*su abvn/n- x p2ook8big8ting downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Th ik+x6l*)ha6* ;h3hggtx fxkce ball is placed inside a uniform electric field, and is)*g6+3lct hi hkkh*6x ax x;fg suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries lx/t2ee.ho nd)6pgq+ a charge of +2.0 mC. What is the magnitude of the electric field 5.0 +ox g)pntl.q/6he2edcm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge o;* +xn an kf+czin*-bw7 inta3f 3.0 mC. What is the electric fie-nbinc fta+wn*n7z *+iaxk;3 ld 6.0 cm from the center of the sphere?