State the law of conservatiow i(zssbl wujjec ja1;b.b-/-)x 0ug7n of electric charge.

  Is it possible for two +b+okpwshe ,:d b8 8yxnegative charges to attract each other?

  Is it possible for a positive and a nsl- -ji9noh,w kc0or;ci8 ni 7egative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glasd09c /w-r9 yfqq(k ggus rod acquires a positi w9/d kgqycq90fur (g-ve charge and the silk

  A proton carries a

  The model of the atompqa dc/-gezgdq p6xl;j+qai4 d v1z-;( s gy-8 shows a

  A neutral atom always 9ydq- ,;zko5sof0o;s4t9rg ht txkv, has

  An atom has more electrons than protons. The atom zou) doh1ww: 2ls 1hu*6tbvg( is

  Materials in which the es 3a67r bh;kurlectrons are bound very tightly to the nuclei are referred to a6b 7shk;u r3ras

  Materials in which the electrons are bound very loosely t6sq f-c5,bx5/f. .eny kdelil o the nuclei and can move abou., x 5-nqfl5kbfci sd/ e6yl.et freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. The j,g6yuqd3bb ) end of the metal bar farthest from the cha ,gjqy6b) bu3drged rod will be charged

  Sphere A carries a net positive cha m(d-lj4kk n8grge, and sphere B is neutral. They are placed near each other on an insulat(dk- mng8j k4led 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 positi6- g g/q(1jxrtl8igbuvely?

  An originally neutral electroscope is briefly touched with a postfe,d4o8vn4 a( a6u flsszy82k 3k*b hitively charged glass rod. The electa ku6b2l,y* 83a4f4t(sve kh sodfn8z roscope

  An originally neutral electroscope is ey rim:si0phv x9ja.;o o5nk1hm 3t) .grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electroscopei5h ;vmeia.n o3:jktmp0r. s x) oh1y9

  A positive object touches a neutral electroscope, and theh2r(3c ns5 bc1/vwg xh leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leac sgh1w32/hnxc r5bv( ves?

  A large negatively charged oqc ujbrg b9y9)4kz:a1bject 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 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 u k9)b4cr bg jazy:91qtouch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the /9tqlif;gr a 4Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated fr +x hyd 9d:h+n w4kry27qx2sby a distance d. The first charge is larger in magnitude than th+dx+r y 27nx:fhq 42yskwrdh9e second charge.

  Sphere A carries a net px/44+tr) *isl/ ooji btj4dacharge and sphere B is neutral. They are placed near each other on an insulated table. Which statemen*/4j oa dtbj li4sr+i4x/otp)t best describes the electrostatic force between them?

  Two charged objects attract eac xg-0luzhl3- dquaysnybj8-2 (pl 9/nh other with a certain force. If the charges on both objects are doubledz-gq-h /xsyb3 nn-au jdlup8l09yl(2 with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attrh5z: chg0oew1az.0 zmactive forces of F on each ot.hwem gz00h:z5o acz1 her. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the fqhzo4:vfn soq 5qx1 )4orce between 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 equ1 4z5q:)q xofn4 sqhvoal to

  An electron and a proton are separated by a distance of 1.0 m. 8exfy9a )ujrj2v6 /wh What happens to the magnitude of the force on the pv9j/ew)2 8ufh6 xyrajroton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distam6c-y3d 5s i*ep;zmj gnce of 1.0 m. What happens to the magnitude of 63zy*mg 5-p jd simec;the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separ/ wo/; f *mpld;vks)ruated by a distance of 1.0 m. What happens to the size of the force on the proton if the ewsfr)klo v mp;d/*/; ulectron 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 poinhqq-o .cp 7;nvt 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 magnch.vpqqo7 n;- itude 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 c 1nvue1t 6.vew4oozu,pz 0*ybentroid of an equilateral triangle. When a second charge1z *vu ut 6wy.o,4pbzo0ne 1ev 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 not a vgulg- 9du a78u1 )wmu f7w8tdwector?

  At twice the distance from a point charge, the strength of yg994x ceg b(sthe electric field

  Is it possible to have a zero electric field value between a n(c6efrcq0tm /5jc-ezc4xv mo58bq- negative and positive c8-e crnfj m5q q0c/cbme6o- ztxvc5(4harge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive charges 0 otr4qaepdd6dw 4a wj*+egzh5- 0oc3 along tq5acw4+0o0o-34dhpte rz6a dewd*gjhe line joining the two charges?

  Electric field lines near psid , rbtwgc *+hr.5f7zitive point charges

  The electric field showdwyr)c*qq,nd z+. p8 sn

  Can electric field lines in l5l:ac6sh xbn os79b0tersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a un he8fl:e/xgbs5v r5oc q;(w e2iform electric field. Give a statement concerning the elw gexv (r/lheb:s25qeo; 5c8fectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eache0y9jpp. ep5r 5hri )2xr)mch given the same charge, the electric field (E) midway betwjreyc hpr h epi)2 m0559x.rp)een the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region z /imvw0 mke50where a uniform el0km z0vmi5 w/eectric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an e87ii.d9zj qo.g8kin b lectric charge

  A positive point charge is enclosed in a hollow metallic sphere9 bf+sumx y5nvm/kq.9 that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphe.ny+k9 m/bqx59 muvsf re has

State three properties of conductors bfy 0z i b:cmi19;nk*oin static equilibrium.

State Gauss's law.

  The charge carried by one electron idjx60xdg + w3v+ rtx/es $e = -1.6 \times 10^{-19} \; C$. 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 prott5sb :paz;dn5 p n1tq:ons than electrons does this p ;t55qzs b1np a:t:dnpiece of plastic have?

  What is the charge on 1 kg of protonsi7,; 5cm r9c;gus+twckgp 5 v;exhpt, ?

  An atomic nucleus has a ch :mdh e 2hmih4 0+f*fdlund;r+arge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sdp,b : bor5+k9i abo/beparated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectivbi kd,pa/r9o5b :o+bbely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 mua9 ;nr wb+hl6 from a second charge, and the force between them is 1.0 N. What is thurn9wlb6ha+ ;e magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How f:ag5f.px+ wvnzib- a(ar apart are they?

  The force between a mja:e3x-tk o fpi5v )jy/;3 ue$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cmu tbrd ,;ar1.q apart, experience a 1.0-N force. If they are moved to a new separatt u,rdb 1a.rq;ion of 8.0 cm, what is the electric force between them?

  Three identical point ch1qx8eqj ha tm0e7(4nparges 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 cm, and the third is at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on t48(eqjeq p0ahxnm7 1 the charge at the origin?

  Three point charges at1q/5jxvj*pr x8 -hquve5x7-ir 5 gqore placed on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cmg5hxjjxuq qtp 8 v5rr/eo 57q-x* i1v-, 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 fo:a/.qjafi0 s6l.mp tillowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q/ilq 6 am.jat:f isp.03 = -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 9), ,b7c9,ks t yc xh1rufeiwmthe center of a square, and a second point charge of -Q is placed at the upper-lef),rxcswhy,1 i 99buckme 7t f,t 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); vhjarb(( rh 89)nhwcue2nz8i m6 61ubQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0(ibweh81z2)vcaj6h8 b 9m(6r rhnunu , 0). 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); Q3 = 5.0 nC1wdn ui4lu+uu0afk6 - is at (0, 0). What is the direction of the net force on the 5.0 nC c 41 kalidfu-6u0 nwu+uharge?

  Three identical charges of 3.0 mC are placed at the vertices of an equila5k6d key1yfw 5teral triangle fw51dy ky5ek6 which measures 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/o)yu) k2fuh w, which are separated by 3.0 m. At what point, 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 w) kyu)of2h /uwould be zero?

  A +3.0-C charge is at the origin an ke2l tt4mjc:7d a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be pt7tmc 4e: 2lkjlaced so the net force on it is zero?

  Charge +2q is placed at the origin and charges2/89 +hh yilnx 6qfcn -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on i 2h8lxs nq n+c/fiyh96t is zero?

  A copper penny has a mass ag jamui66-ao i)n+8j 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 0 7hu,exm/bd;dfrl qmt2q .z,against the force of gravity by the attraction of a fixed proton some distance above it. How far above the t mf/d7,q2q,z0d ex;. lm rbuhelectron is the proton?

  Two 0.20-g metal spheres are hung frp1snqa0,x6v9 ppq; qkaai6m1k l5)t yom a common point by nonconducting threads which are 30 cm long. Both are given identical charges, andv1)qxpa ,61 ma9 lt;np5 s0qpk6ikya q the 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 ha4avj/fv 0q3 gu/a- gjqs a charge of +40e. What is the magnitude of the electric field at a distance of qvv g3aj -guqj//f0 4a1.0 m from the nucleus?

  What are the magnitude and dim lb(ga)wsobg5-. l5 prection of the electric field at a distance of 1.50 m from p()bb os5lg.lw-5 a mga 50.0-nC charge?

  A 5.0-C charge is 10 m from a small 8k.pnut 0lbyj0- 7 wlstest charge. What is the magnitude of the electric fi-b 07ulnwjks0t8 pyl .eld at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. 548flmow ,s4+y 5o:ud p xnlkq7iic3 hWhat is the direction of the electricuf4qi74 ll8ny d :3i 5 psxmokhw+5,oc field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude ov59. joany(: se 7gazkf the f zjeaa(5 .7:ys9nvkog orce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a vq(-f8soa(2r( if9crnqp9 qxw alue of 3.0 C and are separated by a distance of 4.0 m. -p 9cf92qsnxq(ofiraqw r ((8 What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed a tx dmt5thzvkii1v )ozq78683t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fi8 6z1t8tq7 )t omhdzi3v vxik5eld 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 ms0itk e 8 ,et,1u(k,emjzm5bmC charge is placed at the 50 cm mark. At what point on a line joining the5s uzj e0b,k me(i8tet k,m1m, two charges is the electric field zero?

  Two point charges of +3td s86mv lwu-:f0x iw4u *vwk..0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point mid f.wdmw8-ut:lxk su4w0v*i 6vway between them?

  Three 3.0 mC charges are at the three corners of a square of sidta9c r lm dra0b dp0 x,t:j6,uh67a4dde 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thelb9d ar, j:700 xt6hracdt ddm6pa,u 4 electric field at the center of the square.

  Consider a square which is 1.0 m on a side. C 4fwk/oy , c wfrsxj)ip3+wxs,/0yk .lharges 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); -3.0 mC at (0, 1). What is the magnitude of the electrlsiys4,.jfywocrx0) w ,+w//3 f xpkkic field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in1n .mk;bj jyf k)dee+8 a uniform electric field. What is t8+fejen)dk ;bj y.mk1he magnitude of this electric field?

  A particle with a charge of 4.0 mCl 8 wztusg 2bp f/i4um/2(o+bd 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 imdz, ivni 1q0f3 :gnj;s placed in an electric field of 6000 N/C pointing downward. W dj0i;vg1iz3qf, : mnnhat charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a chargno(flad9z5mv0+ f m-li.:wi he 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 o :f(-0miwzal9n+hl .d fovim5f the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magnituwvh wq:yp..ff1 hwt- +de of the electric field 5.0 cm fr1w.fqpt:wh yw-hv f+ .om the sphere's surface?

  A metal sphere of radi7 xdc8 )hgqlmeq /ii ii6.j*+tus 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the ce 7*gmdj hil+ eqx iicti8q)/.6nter of the sphere?