State the law of conservation of electric charge.3l (hvbb mem6r); riaqu2t 0k5

  Is it possible for two negative charges to attract eaci 82p wuj t5fb8hciq :2 za9*vaulp-8sh other?

  Is it possible for a positive and a negative chargu9sei.4kk o; yn,ha ::mg-yh re to attract each other?

  A glass rod is rubbed with a piece of silk. During thh65dt;q wic 0le process the glass rod acqu056iwl c;tqhdires a positive charge and the silk

  A proton carries a

  The model of the atom shows av6v6 dpoviihx*8np 41

  A neutral atom always ha;y737.gt cgmlhwt z;xs

  An atom has more electrons than b n - e6.sr-uh0baxl-sprotons. The atom is

  Materials in which the electrons arpg59 4tha xov( rwz+q9e bound very tightly to the nuclei are referred t54p 9q w+rxo9v (aztgho as

  Materials in which the electroohd vj ((.qsl(rupm:8ns are bound very loosely to the nuclei and can mo q8pv.mru(:o( sd j(hlve about freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal brv3xlbp--ow 0dtca 17ar. Thepo7 30v-ca l-xb1wrtd end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positshk vd za.m;)tiq ,/w+ive charge, and sphere B is neutral. They are placed nea ,;swz)iv tqd. h/k+mar 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 tpi) 3qyjt;r-?

  An originally neutralsyjrm:+. g4vifm iv+us4y1)78 hxz k n electroscope is briefly touched with a positively charged glass rod. The 7xi4ju+nsv.+f1 im y4g zyr8hv ksm):electroscope

  An originally neutral ny 8 eu,3c4aiz7kpyj /electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is rye8c4nj za7 p3iy /ku,emoved, the electroscope

  A positive object touches a neutral electroscope, and the leaves separx8 1 lj8t,rjs.ncjd:v 1 uwpu6ate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the le16rtj,dswpun lc.8 uvx18: j javes?

  A large negatively charged object is placed on an insulated table 5jkw+.k u gccu*e0h1k. 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 first ball, and stops. The first ball rolls forward, but does not touch the negative object. At no t. jckw kukuh c+ge*051ime does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constae ;a.1 wj0rwv:0ys 3 heocnp1cnt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first1os qbi ;f74lw 54ozoe98 bcgr charge is larger in magnitude than the second chas41zo5c7 8g 4w9 oi;o elrbqfbrge.

  Sphere A carries a net charge and sphere B is neutral. They are placed neiadunq,45s*i 9(ptad;cb wa + ar each other on an insulated table. Which statement best describes the electrostati tauq4i+d p*na,d;a (b5csw9ic force between them?

  Two charged objects attract each other with a certain force. If the cha:3 ggs9lq xrfc 93taq8rges on both objects are doubled with no change inx9sg:g cf3qqal 9 t83r separation, the force between them

  Two charges are separated by a distance d and exert+r apr wkf2.o,h +g,nl mutual attractive forces of F on each other. If the charges are seg pw,fkr2.r, ah +ol+nparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a s 0ygg /w9gq,ryb e2m3force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation dibq g/mgg,yw2 0e3y9 srstance 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 91 x q)f;dlddbhappens to the 1xdd) qlfdb ;9magnitude of the force on the 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 happens tocrj9d sv. w9l/ the magnitude of the force on the first electron if a second elecc .9swl /rjvd9tron is placed next to the proton?

  An electron and a proton are separated by a t*j bpt7qs.fj h6ihr fo 30 j)do01v3adistance of 1.0 m. What happens to the svq )o1h ot0hafdsf0i7 *b6.r jjtp3j3 ize of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center o+p00z5byic qd -vbjm, f a square. When a second point charge of -Q is placed at one of the sqymp05b-icd0bv q j+z,uare'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 center of the square?

  A point charge of +Q is placed at the centroid of an equilateral-xa0tnuc ib ,. 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. 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 veb-c, tuixa0n. rtices?

  Which of the following is u1(o fj:bp-a5 h;1myt ;uq.fflx kq,mnot a vector?

  At twice the distancev5-5pay zw+oe sc 16pvwv6nn6 from a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negatg.zsm zqu8 ,y7rex6(m ive and positive csxm ,.6r g(y87ezumq zharge along the line joining the two charges?

  Is it possible to have a ze9r24xgo0a )wa szk)dm* ux5i uro electric field value between two positive charges along the line joining the two chargw2k0zo)r u *xs4 iagd9a5)uxmes?

  Electric field lines near psitive point cha09dci dta*eg a e(+t,/yu jx3pc6m:ilrges

  The electric field shod:)spc7*)mv;l ldlqtqw6s 6f wn

  Can electric field lines intersect in freeevp 0;)zra hd*a8 m9hjz2(stk space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform electd4 zsbgk8jg6-ric field. Give a statement concerning the electric field ig 4j zgk8ds6b-n the block's interior.

  If a solid metal sphere and a hollow metpintl+ )yoa0 (a -42 ls57sytt*klmc zal sphere of equal diameters are each given the same charge, tl am k 0o457la)i (pyzn+tsyt*c-2lsthe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region w y l);72ucekuuhere a uniform electric field is directed straight upward. What can be said concerning the charge on the block's to2c;)ly ukuu e7p surface?

  If a conductor is in electrostatic equilibrium nearv.dk *21lsb qt an electric charge

  A positive point charge is enclosed in a hollow meta1*,ha( df2xgf *zlu ynllic sphere that is grounded. As compared to the caslfd*h2un1fg*( y a,zxe without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in stati56k jjtqp(vc1j- vh (vc equilibrium.

State Gauss's law.

  The charge carried by ondx dr7e4 rw3-ke 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 maq s dw9l6qvg+:ny more protons than elecqg+ vs6qd:9lwtrons does this piece of plastic have?

  What is the charge on 1 kg of fc sn p7ib0u( .ck(qrkc-rs8)protons?

  An atomic nucleus has a chargeqm zc 4j)x79lita 3wei* s g+,vgjb+5v 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 2.2nh9jygu9 ifl+ 1 y1ok0 and -4.0 mC, respectively. What is the magnitude of the electric force bfo2gy hk yl1u1ij 9n9+etween them?

  A 1.0-C charge is 15 m from a second charge, and t:tzdrmelha : dxv*2th3+2 rbx2na)(c he force between them is 1.0 N. What is the magnitude of th2 xlrxradh (ez+nd btvh)2m*2ta::3 ce second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are,yzy,nek wz ,8 they?

  The force between a la/s(8i..9ju xe 9w; m5fove4tm gbzsbvp8.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-r i (k8nvmn16itk.c m apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what mir.8inmkn (t-kc61vis the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The + h)epr9n,y y6l;jkvsfirst charge is at the origin, the second to the right at x = 50 cm, and the third is at the kr9 yhjyps n+,l6);ev 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 jbj-b:r-iqp.q/ u e3v the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 :ju3i-/b.- r veqjbqp 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 acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2e (idk s4 /u5kesp1t /hkuhs+1zy3v8d.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 od+ u1 kt3es/k1 uphyhzs dv/k5e4s(i8 n the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point cf 21kxkxv)m h ta.b70 m(dku6fharge of -Q is placed at the upphftma 60)vf2m(x.kk k b7xud1er-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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 n n: b2y/hdp3eoC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force 3 y:b/ den2hpoon 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); Q3 = 5.0b,7m.t74 c qxv ,btyzw nC is at (0, 0). What is theq 4b.,7wx7cb,vym ztt direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the ve rjfk o1)q-*hyw;liigh*43strtices of an equilateral triangle which measures whf4h)q3is**lk 1g-yjitr o; 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, whrl(bkkjog n /lzlw / an(j.:*)ich are separated by 3.0 m. At what point, on a line between the two charges, would it be pos(zabo. rj)/ nlnjkk wg/(:*l lsible 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 iw-12timlo8 :y;d uwpyy i a1frtzr7-8s at x = 4.0 m. Where on the x-axis can a third charge be iu8itoyy l8wtwp; d zymfr: -2a1 1-7rplaced so the net force on it is zero?

  Charge +2q is placed a i:f26ljrjf(tt2 5y my1htth(t the origin and charge -q is placed at x = 2a. Where can a third positive char6j(mh1ttt2tr:(f l 2y5jf hiy ge +q be placed so that the force on it is zero?

  A copper penny has a r,+jtx m0 -zdamass 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 att fb6pf(sj86ilraction of a fixed proton some distance above it. How l6s(fb8pj i6f far above the electron is the proton?

  Two 0.20-g metal spheres are hung from ape(r38sn8 3eug 3o-ik/h eblb common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic bkh38 i83neul(gb3/ peso re-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 +40eyelwg lb ,5 i4.(z)vej. What is the magnitude of the electric field at a distance of 1.0 m fromzj4),wy(.v5 lebieg l the nucleus?

  What are the magnitudeh) hpi0)qtay- and direction of the electric field at a distance of 1.50 m from a 50.0-nC chaayhqp0- h)i )trge?

  A 5.0-C charge is 10 m from a small t7w5 rqvevm z(ez12gr.est charge. What is the magnitude of the electreq7g.2rrzm 1 ( ewzvv5ic field at the location of the test charge?

  A 5.0-C charge is 10 m fpk:)n5is4nm y rom a small test charge. What is the direction of the electrp :kimy4n 5sn)ic field?

  A 5.0-C charge is 10 ,kkt dl-tm:9p*f ;gvcm from a small test charge. What is the magnitude of the force experienced by a 1.0 n t;k t*f:pl,-kd cg9mvC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance of s, z:h; c5a lx bkq0p8+1p;d2waiwgid4.0 0 2 w+ h;pig,qxkpsz8a1l:5ba;cwiddm. 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 meter stick an:jkm 2hpauiw:rs/ + 2kd a -4.0 mC charge is placed at the 50 cm mark. What is wk:hju22 ki :r +/smapthe electric 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 fzo, +l a*y;adcharge is placed at the 50 cm mark. At what point on a li;foalaz+d y *,ne joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -gb+jbb3x m s6*7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point mij* g6b3+bm sxbdway between them?

  Three 3.0 mC charges are at the three cor6w;xc47h gtteq b5r9 rners of a square of side 0.50 m. The last corner is occu wtbr76g5e4x9;chq trpied 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. Charges are placed at the co5i4k -q f0d3g2pgdq exrners 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 mxqd5fqgp-gie 32 4 kd0C 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 wh8xqoe*opdv guzh8,s:5z 16 lnen it is placed in a uniform electric fiel8,:oz18gu6 q*snv lzop dhe5xd. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC ha4cyr3w b; d c:yb7.irun+jn /hs 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 poinurkb j53qk/v 1ting d1 3/uvkrkqjb5 ownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carriep5x 3(ev)2cb o oy/a*fo 58tm/goeueds a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric fiel vgfc u)eo*ab2yd//o e55ptoe(8m 3oxd?

  A metal sphere of radius 10 cm carriecngzg(6ck) sf .6+zrs s a charge of +2.0 mC. What is the magnitude of the electric field 5.0 c+rczs.66s kzg)( ncf gm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of t mmp t1hvj(w42vkruyi5;qa*2 -pf0x 3.0 mC. What is the electric field 6. 25tpvrwkm a mi2 pft;q(h 41yx*0juv-0 cm from the center of the sphere?