State the law of conserv(t w50trhp4dmation of electric charge.

  Is it possible for two neg*ed.vuaqn-hc ;xvp t*mu5 95oative charges to attract each other?

  Is it possible for a positive and aev mn1zy+c(;fn0 .s 7ogo n/oz negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the pryzht gc:ikgd80/c5 im3hz y+ /ocess the glass rod acquires3hicmt //g:5d8h cgi+kyzy z0 a positive charge and the silk

  A proton carries a

  The model of the atom showyl+l gvjq g*1:s a

  A neutral atom always has)piazz6-fgm0+ldg v8 .gcc+ t

  An atom has more electrons than protons.2 xg:rgc6yd10c(7je hh g ly-z The atom is

  Materials in which the electrons are bound very tightly to the nuclei are7d *ei awil() v4nym(u referred t(iad7)ilnu* eyv w (m4o as

  Materials in which the electrons are bound very loosely t (.cfyhjx m-og 186laia.i:m ho the nuclei and can move am. ( cax-j.i18 olmfg:ahy6ih bout freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar8nb-6 op.-8l qgc29clwx/o u6e jumbg. The end of the metal bar farth b 9uogobp6u8l28 nqx-/cw.gl emc6j-est from the charged rod will be charged

  Sphere A carries a net positive charge, and spherfmu82 61*x9bve+pc cw frhc9he B is neutral. They are placed near each other on an 2eh1uc*f +mwhxb6 v9 8frpc9cinsulated 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 positi apa kih do r.r/-s3ski5c4+qx wdt::+vely?

  An originally neutral electroscope is briefly touc8l4vpz9 nfiilr .p88 bhed with a positively charged glalf4v8pri 8zplb.8n9iss rod. The electroscope

  An originally neutral electroscope is grounr5r+c 36a+y an umur6nded briefly while a positively charged glass rod is held near it. After the glass romnarn6y5 6r3ucur+ +a d is removed, the electroscope

  A positive object touches a neutral electrv(u. kq9,mg : n8,ifzqnc jinn dlfa*7 bfr-75oscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to theqznid uvln fq(rckj8 ,f9, i7m nf:-n*b7 5a.g leaves?

  A large negatively charged object is placed on an insuy3vt7 9 5wsa u: z-joqye2:zqrlated 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 tou 39:jaw oystr-vzqe 75:q2zuych the negative object. What is the final charge on each ball?

  Charge is

  What are the units of i+in/q*a7js afhwz 0pm48v- w the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a dista;hyuqn0wse + d4em-;nnce d. The first charge is larger in magnitude than the second chan ;ew 4euq0mn;s dhy-+rge.

  Sphere A carries a net charge and sphere B is neutral. They are placed - wakf*/dj-ldnear each other on aaf d-d* l-w/jkn insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attractgsm1.96v8,bqi p sqmi each other with a certain force. If the charges on both objects are doubled with no change in sep,mg.9mvs ibs p8 1qi6qaration, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces offho8f9qa2 p qgnze9 ))qi.ve+ F on each other. If the charges are separated by a distance of d/3, what are the new muq2g n9ie f)feh)z9vop.q+ q8atual forces?

  Two charged objects attract each other with a force l 8*dykr*l bb f w2t/m*s2biv/F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to oneif *wd2l ms/rb 2ktb*y/l*vb8-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. Whj uuzo1)vn6 b(at happens to the magnitude of the force on the proton if a second electron ino )j1u6 buzv(s placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Whaxp2 y 2+bp0 g8ex f21av:imweit happens to the magnitude of the force on the first electron if a sece 0p m xa+i2 v12g8biwfxyep2:ond electron is placed next to the proton?

  An electron and a proton are separated by a distance ofvccl+o *8, szei1hj)g4hs 1xz 1.0 m. What happens to the size of the force on the proton if the electro 1 v*cs hhslz+ iz4cx8o,g)ej1n is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second po;hqmuu)s7 c v9d 6rr/0efh5opint 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 charge at the center of the mdc0 hu;6rr7vhp /oq)u fe5s9square?

  A point charge of +Q- ry.4uw .ytvo is placed at the centroid of an 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. 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 vy.-ow r.yt4u vertices?

  Which of the following is non-,mzx ,q7li ot a vector?

  At twice the distance frg ce wf5bvwc z4*az60qs ..p h)tp9h2pom a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between as det9gblq:8z(:hr u.rmpx(3 negative and positive charge along the line joining the two charges? su mehd:p9z.:rrxt qgb(l83(

  Is it possible to have a zero electric f df.)i*7.zxo- qk crmot*n*n field value between two positive charges along the line join7c*kffn-rm*z * xdiqt.n . oo)ing the two charges?

  Electric field lines nehh e:xfhg/)s-ar psitive point charges

  The electric field shokuckuyu-)p 0/o+wta 8 wn

  Can electric field lines intg)((sgi22m+rulrn s5 k.6rnw hzd yg 4ersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uni k8vvel/7/bqor /tpg 7gw5x/rb s6n5/vf1 jr zform electric field. Give a statement concern7w p/er xvk ng/s bf /rt1zr5//o6vlj57q v8gbing the electric field in the block's interior.

  If a solid metal sphere and a hollow mett-y: zy/wi d*hpyh8n4/czr /fal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surfac//-*yhwincyz:84t h rz yfp/d e is

  A cubic block of aluminum rests on a wooden table in a region ww*cjs tc .b1;bhere a uniform electric field is directed straight upward. What can be said concerning the charge on the bc; jc.* twbbs1lock's top surface?

  If a conductor is in elect /c)6t,gw;kerjbe)jo2pm - kirostatic equilibrium near an electric charge

  A positive point chargkhhq4 vt3/: zde is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere ha3v hk t/dq:zh4s

State three properties of conductors in static equili v.cw7dx 7jslp7*cksdt5jth/+ qq.1pbrium.

State Gauss's law.

  The charge carried bn1qm) 2mcl eps9)exk-f.wm 8by one 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 thane 7fcr5d,n;r r electrons does this piece of plast rr5drfe,;c 7nic have?

  What is the charge on 1 kg of pq 4)yhinm( xx)rotons?

  An atomic nucleus has a chach9urg. 5 (d: (iddgofrge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated bwn/,osk yunh0/ (lvc- y 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electriyskucw, /o /l-nhn 0(vc force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweenx.y5und ah7hxd2ctt+h7l9wx pg: i:4 x.h t:x them is 1.0 N. What is the magnitude of the second charge? h d xwtxhu :t7hy9adt:. x2pg+lchx.54in:x7

  Two 1.0-C charges have a force b4e c9ay 0/t lpdbd3m-: g(30/ewfvsey frb-l tetween them of 1.0 N. How far apart are they?

  The force between a r fze3scx/fu:z te4*mi go:2;$30 \; mC$ 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 fv67dl pk jw h)z5j /bjyw,+t21.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric ffv2k7hy,t jb5+w6)z jdjlp w/orce between them?

  Three identical point chabon v0aq/ ;kj 74ohi:hrges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 v;bhqo0a ikn4 ohj7/: 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 of +2.0 mco* m gjfva,;lv/z n90C is placed at the origin, -2.0 m C to the right at x = 50 cm, an*n,aml/c 09g zv ofvj;d +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 arey 92zgqpdquff062le-g *5g vv located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m f qluev2d0qg pf-*g 9g2y5z6v. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Qwgai2n dtln*q ln.7/ 8 is placed at the center 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 tnqa/8d7 *i2nwn.glt lhe 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 nC is at (0, 0.10 m); Q3 = 5.0 nC is(.qk3 4ns+0ukf xq nqq at (0, 0). What is the magnitude +4 q(ukf.nq3 x0qkqnsof the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0iuu3bdd* )5a;hwmfu ii8 v t(7p.s/nb nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directioui hd5vabf8dt7s; i/3ui ) pwn*bu. m(n of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at theblu-- zpdvzjyiw3k)pf2f4 17i maj 39 vertices of an equilateral triangle which measures 30 cm on ajf 3ppvak)jd 3 y47i2zf 1ziu--lwbm9 side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m.p:8nj8v5g;h m df cyt. At what poiy 8 5fdg8j:th ;npmvc.nt, on 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 atnq r/;dzyr.9yp +yo0l x = 4.0 m. Where on the x-axis can a third charge be placed so the net; .zo9 0yqynlrry/d+p force on it is zero?

  Charge +2q is placed atjz- jvwx6+yp7 the origin and charge -q is placed at x = 2a. Where can a thir+7yxw pvzj6-j d positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass ofkl: 0lcs3phq g/ jx 3f2mum oin66i oq66j0wc2 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 1.fbs pn vrtlc,)b: 6cagainst the force of gravity by the attraction of a fixed proton some distance above it. How far ap s tv1bb:)cl,fnc.6rbove the electron is the proton?

  Two 0.20-g metal spheres o 04v q7h9zbpx0(+j,buzvqoj are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apaph+90j(ou,o0q 7z zvx jvbbq4rt until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40 zn 4rmdxa.ip)7 ix6bg ,koi8*bz6t +se. What is the magnitude of the electric field at a distance of 1.0 m from the nucleusk t7x) igpr+o a *idb86zmbn4z,x6i.s?

  What are the magnitude and direction of the . j1ho.dq vhpcio1i l:t2/ qu*electric field at a distance of 1.50 m from a 50.0-nC oovu. 1/qhh1c 2. :qdp*liji tcharge?

  A 5.0-C charge is 10 m from a small test charge. Wha3hvjd:-bgqt i8d..wl5qpp 3 bt is the magnitude of the electric field at the location of the test jqv58pb:-bdt.3 gw dlq3 ihp.charge?

  A 5.0-C charge is 10 m l1g -j j*:fxszfrom a small test charge. What is the direction of the electrix:1j *sl- fgjzc field?

  A 5.0-C charge is 10 m from a small test -uy2r44aam7vr bdd-mcharge. What is the magnitude of the force experienced by a 1.0 nC charge placem-4aym2ar 4db dvu r-7d at the location of the test charge?

  Two point charges each hy9y-t /e -ippnw( 1otpave a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a -(ty9wi y -1pnpe t/popoint 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 charsr(c. n:2nqe )fcnqo:ge is placed at the 50 cm mark. What is the electric field at thf:c n:nr )c o(2s.qneqe 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sticiv3* fnfey(z -lpv 2h.k and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges i z*vifhfvn-y p.(3l2 es the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 c vwyd;(rvq 5lkyb8;9s.(g bad zv9x* and x = 0.20 m. What is the magnitu *;vqycs (xvd ;vda ly9 9gb.wrz5k8b(de of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three c)m pcjsfk 2n3 kvtp562orners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the sp2k25sf m pk63n tj)cvquare.

  Consider a square which is 1.0 m on a side. Charges are plfjfm xlq0uzk)7ucs6h,;uuq h6m 1 4*kaced at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1);kh),f*uhkx szmm f uq1cq4uuj7; 6 60l +3.0 mC at (1, 0); -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 e+0itk+za5og ed 5 cz/of 5.0 mC when it is placed in a uniform electric field. What is the magnio 0czg/++ek dtazie55tude of this electric field?

  A particle with a charge of -fmel3v3kty) 4.0 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 Neqqdzmpy.7ez / kn7( 2/C pointinm 7ze.7( k/2znqypedqg 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.-81fwi0 mrmo;2t drri00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravi21ir-0 8wdmi of rmrt;ty. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +v8x *eid)ej)0u ffp(x 2.0 mC. What is the magnitude of the electric field 5.0 cm fi0 df xj8f p)(vx*ue)erom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a cha)gn/ utl2j l2pq6hu+ k+,q+dlqxdp5krge of 3.0 mC. What is the electric field 6.0 cm from the center od /x26d )qg++h,q qk+unp2ll 5jutpklf the sphere?