State the law of conservation of electric charge. pd 8(z7z+q wyz+gp;ffyi6537 qkrrsz

  Is it possible for tte t6jnci/*h 7wo negative charges to attract each other?

  Is it possible for a positive and a negative charge to attract each othersb9vh48d4 6ptx*cg nl2(am nm?

  A glass rod is rubbed withx(m9c5xs ou bp*/(yg2xxe5myqv x z8+ a piece of silk. During the process the glass rod acquires a positive chargys m5x(u5o q (xx*z29/ e+x8pcmvybgxe and the silk

  A proton carries a

  The model of the atom showk :jas dab fwx,51e.ekn909sf s a

  A neutral atom always27xygq r2 om.usa(m. p has

  An atom has more electrons than protons. The zblnfh0i 04qn (, bz cod/vq9:6q mzp*atom is

  Materials in which the electrons are bound very tightly t pf. fcdg ik*902 nl8 ivrdvr2k1n5fnuna .(7wo the nuclei are referrr2vn p8.cfnldn(f1kinafv9d g i 57rk*2.0 u wed to as

  Materials in which the electrons ae buw)rpq89( ,vecir4ds 4wi: re bound very loosely to the nuclei and can move)(e ,4w:bvweqps d4crir8i 9u about freely within the material are referred to as

  A negatively charged rod is brought near onep6pwcpnz 2 xr9el75p5 end of an uncharged metal bar. The end of the metal bar farthest fro 62lpzxppcpwr 97 e55nm the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. The fjq2veldo-jom:h-rb0 d;kw 3:; 0qvny8 ok c2y are placed near each other on an insulated table. Sphere B is briefly touched with a wire that ism8ocq2oo- 0d y2 0 jdl:;bn qkkhv ;v3jwf:er- grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope pos.kzhmn4d*qn 1d* ,zv8 5 hnld:)ntzabitively?

  An originally neutral electroscope is briefly touched with a posit(atr q8w 7vt;oively charged ga r;(tv7o w8qtlass rod. The electroscope

  An originally neutral electroscope i;* hgxn)ohk(rbh g l;z ga.n,:s grounded briefly while a positively charged glass rod is held near it. After the glaaxk .gr(bog,gh; hzh)*; nln:ss rod is removed, the electroscope

  A positive object tousdip .o3 ob;j (/tf h-ljw-nr.ches a neutral electroscope, and the leaves separate. Then a negative /s;hf.- bjjr .olnid3t- wpo(object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulaskovz5 *z4cwtq ln0 -1ted 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 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 z0*q4l1-tsz 5vcnwkothe final charge on each ball?

  Charge is

  What are the units of rimjdh6o1+i( zq;zb9the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first cxm 6rlrkcp+g ,.qva1v04gs d.harge is larger in magnitude than the sec ldpgsrr 4x6.g.0,m+k 1 vaqcvond charge.

  Sphere A carries a net charge and sphere B is neutral. They areex4sd3w f/d cx.7bl i(r- dt+y placed near each other on an insulated table. Which statement best de+dyrtf3( - dsix4dwxc le.7 b/scribes the electrostatic force between them?

  Two charged objects attract each other with a cl8zc f2r aa32mertain force. If the charges on both objects are doubled with no change in separation, the force betwea82rm cazl23fen them

  Two charges are separated by a distance d and exert m8 x;ka 8)ikhjjutual attractive forces of F on each oh kx);ikaj8j8ther. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each othxmcd 7wav 9g13er with a force F. What happens to the force betv m cd7awx931gween 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 now equal to

  An electron and a proton are xu7-wzy s:,klm2f;xp separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a secondzluyp 2mxsx-w;, fk 7: electron is placed next to the first electron?

  An electron and a proton are separated by a d8 iom*c/vc+n distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the pc8 doi* cn+/mvroton?

  An electron and a proton are separated by a distance of 1.0 m. What happens to/2nqk up*a 8iur cp1,.b lgbi, the size of the force on the proton if the electron is moved 0.50 m kaiqb/*,u l.r8ncp2 giup,1bcloser to the proton?

  A point charge of +Q is placed at the center czv dcgy.*s 5jvurz*pfw87+ u(u jp.(of a square. When a second point charge of -Q is placed at one of the square's corner*.p8gu* dyjsf pu5z(c rw+u(7 vzcjv.s, 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 eqo6*2nibo zm. py;d 049 vndysuuilateral 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 char0;o opsy b.u*innz29d64y vdmge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is hvzrud*1 b62snot a vector?

  At twice the distance from a point charge, the strength ofh.usja:ha )( 48ne hxn7j 0+j,klhapk the electric field

  Is it possible to have a zero electric field value between a negative and posit, 5z8p74qcxlajhdp w0ive charge along the x0z 4a5wq, ld hpjp7c8line joining the two charges?

  Is it possible to have a zero electric field value between two :xh:*di s(pqfpositive charges along the line joinf* qix:s:d(hping the two charges?

  Electric field lines cy*:v qpmsq-6near psitive point charges

  The electric field sh m)uztb:9ttkq16ap 9j own

  Can electric field lines intersect isywjy/(njc:mw 443 nleiu) o7 n free space?

  A solid block of metal in electrostatie8d6l1sd z vufb sw) +s;mh;5eklx.)yc equilibrium is placed in a uniform electric field. Give a statement concerning the electr+m8 h;zevsb)wdl lk)1d;s 5 xe u.fy6sic field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters 9ycbv r .bg)v em4u8uzb2 ,,vrare each given the same charge, the electric field (E)r2bv.v,z uu, rv egb94 mybc8) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a u aio(px, px1 ra +,bj5ac9*b4by4gnt 20inxy hniform electric field is directed straight upward. What can be said j0 ,cga t*p1a4 b 9ya nor2yihxipbn(b5x+ x4,concerning the charge on the block's top surface?

  If a conductor is in electr0-fx e zggv*x:ostatic equilibrium near an electric charge

  A positive point charge is encx zsz shjpj.p:e+8h/7 losed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, th:pzzss8 7/jj+ ehx. hpe electric field at a point directly above the hollow sphere has

State three properties of conductors in static equili aqt o8ou,j(gnv o08d3brium.

State Gauss's law.

  The charge carried by one e*a: o: qp5n62yu qpytclectron 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.q 5i6gnle5e1i(+evjphcef6) How many more protons than electrons does this piece of plastic have? + ne6qiv5fp5e1e6 ecgh(li)j

  What is the charge on 1 kg of prrej jpv;vn3/-i6n0u ;q mdj:fotons?

  An atomic nucleus has )c8) xkf9ue5q shqo+ca 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.u8mu.(. kr. 5zfpwecnh; 3dfe5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betwe8cw e..pkmf( ;r5nu3 uh fzed.en them?

  A 1.0-C charge is 15 m from a sec,ommtl ;,4n wfovl:5bond charge, and the force between them is 1.0 N.:4;lnm ,obl fvw5mo ,t What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N.qr/bj* 7tj6)pcx e-c uo3(uq hrh:ni( How far apart are they?

  The force between a 1ayva )w.qb8m$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0q:wqrw,a4 pd 4 cm apart, experience a 1.0-N force. If they arep:ra w4qq,w 4d moved to a new separation 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. The 862lvhda xsal 7d-kno 0tipm6b)g g 22first charge is at the origin, the second to the right at x = 50 cm, and thhdga )mg2obst27dlx n-2v pk6i a0 86le 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( kgpj o;c;n;byrvr8 csm y(.5.0 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 c (8py ky.j;;vboc (ms;rr5ngmagnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions:.s z0(jw edkl-5x5y ua Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; sjwy-ak.x z55dl u 0(eQ3 = -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 c)a0( me -wyrqp(p2zi2r8/w n; zbq rlaenter 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. What is the magnitude of the force that acts on the center charge if a third charge ofia2 / 2qparewwlz 0m rbz-)((q8yrpn; -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, /vah vc2 b-g183(:z hwdjq*hf+ybovo 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net fovaoq hc3o g ( w*bjdy+h8/1b2hv-:fvzrce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1z p9 i1.rm;u z(xyb0rh.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on x0.m(ru z h;b91rzpyithe 5.0 nC charge?

  Three identical charges of 3.0 mC azl 0-r7*xvn vsre placed at the vertices of an equilateral triangle which measures v z7r*0-sxvnl30 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 +ug6zmt5j +g.2ct(sk l4Q, which are separated by 3.0 m. At what point, on a line between the two char(ltsmucj+ .6 5 2zkggtges, 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 oa4/96lcdzbfu:q -co /j .hmwzrigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a thirfj9/ c4cbua .z/-ho6q d m:zwld charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pln4icwh18 g mp5wiqs 9yy;:a- baced at x = 2a. Where can a third positive charge +q be placed so that the force og4-p1 :95cnswiamhwyq8 yi;bn it is zero?

  A copper penny has a mass of 3.0 gmow7- wdj+ l1s. 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 /ov47 x 8wvqkatu;4id of gravity by the attraction of a fixed proton some distance above it. How fd/4vqt4ux k7a vo8;wiar above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduct c3xmdj + q*fxq5l9e.zing threads which are 30 cm long. Both are given identical charges, and the electrostatic repuls+x 3 qfzed9xcq.ml*j5ion 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 :j1c ydd.li .fy tw1d.is the magnitude of the electric field at a distance of 1.y.t d.w1idd ylj :1f.c0 m from the nucleus?

  What are the magnitude and direction of the elp fj j5og zrei,:v 0g6c):t4tvectric field at a distance of 1.50 m from a 0 g6 j)tvi5c,4vpg t:jfz :ero50.0-nC charge?

  A 5.0-C charge is 10 m fromjyzk-rcq5c 8/ a small test charge. What is the magnitude of the electric field at the lo/5 8zrky-cjc qcation of the test charge?

  A 5.0-C charge is 10 m from a sma y. *bmvndt)ws-.gvtl57nd- p ll test charge. What is the direction of the electric.w*.tv- vg7n ys -)5mlpbdtnd field?

  A 5.0-C charge is 10 m from a (g.)33l mp o:pcewbp :dc-vxqsmall test charge. What is the magnitude of the force experienced by a 1.0 nC charge pla pb(g3pl dpm).o3 :q xc:-wcveced at the location of the test charge?

  Two point charges each havmpt *u9udp1;m og;p0 ue a value of 3.0 C and are separated by a distance of ;um9p 1gupo; 0d*mupt 4.0 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 meter stick and a -4.0 mC charwz8yvn9fn8;owm0ch-27aw - fr/jatb 4.x mthge is placed at the 50 cm mark. What is the electri8wt r9-;ta4mhwx jmofn 72c. zbav/0w 8hyn-f c field at the 30 cm mark?

  A 5.0-mC charge is placed at9)glqa a1b2ze0 ad)fd the 0 cm mark of a meter stick and a -4.0 mC charge is placeaz9bq ad )fa)d20 l1ged at the 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 and -7.0 mC are placed at x = /yubym;/5l.l.q dpty 0 and x = 0.20 m. What is the magnitude of th; ybpy/lm5.uql y. td/e electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of s0+. coc(q- 3pjupptmunar(s+9d:rn a square of side 0.50 m. The last corner is occupisn:pj sq.+n3uctouc a+ dr(9r0p(mp- ed 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:*bb :: iu4 keuhxglya(6fm t+ 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); -3.e:bmutl g(: iax+fbu6*k:h 4 y0 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 o (v;0e7 e.b2lr yz hd5okjv;dcharge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this elbyv2dz;ooj;(r0.khv7 5de le ectric field?

  A particle with a charge of 4.0 mC ha0gcch hmq 0-omk+l x)8ka.-c os 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 5vgv,9zr sx/i*8nvw,w l a8xeg is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspend ig/avxr8l*xvw8v 9 enwsz,5, ed?

  A foam ball of mass 0.150 g carries a chhi9l 7agfgy c/9;+vx sarge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What aregy9lsi7 x/va;+h c fg9 the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. +nvnq/ 1u9uz3y70 f.n ,eucek ybhi0y What is the magnitude of the electric field 5.0 cm from the7uyu. nf9vc/hk3iq, + z0 ennby01uey sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3 tro+pl(c2d +wrehk7 i2 5x/zd.0 mC. What is the electric field 6+o r twi2dz/ r+ek5l(hcd2px7.0 cm from the center of the sphere?