State the law of conservatigb.51e q :dul:p j:ag5zelv:jon of electric charge.

  Is it possible for two negative charges to attb wctx ..rkv4j7zzjf,6w n.n)ract each other?

  Is it possible for a positive and a negative charge to ax jyylnfrcu jc8,*z9f- /w q*4ttract each other?

  A glass rod is rubbed wixtb+ ffrw rfwfbcs2(-;225 mrth a piece of silk. During the process the glass rod ac2 - 2x;c2rfr (fb5 mwtsfbrwf+quires a positive charge and the silk

  A proton carries a

  The model of the atowohb(w5u 3mulq4 (hq* m shows a

  A neutral atom always hasf8 :s8ssmdl1dos lgb / cel798

  An atom has more electrons thanvw 9f-ztl.wknj: 5rb3 protons. The atom is

  Materials in which the electrons are bounw p-m 3q8q;mbeq. t asw9mj4k1d very tightly to the nuclei are referreq41bq8tj-km emsa mwq3w p 9;.d to as

  Materials in which the electrons are bound very loosely to the nuclei)do;6z; bruik and can move about freely within the m) u dk6;o;bzriaterial are referred to as

  A negatively charged rod hx7m7cg 9. cqr5d;zt aswb3*jis brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will7ag;73 wcjc z*r.dqx t95h mbs be charged

  Sphere A carries a net positive charge, and sphere B,/ ,feb nd 2/il:tedzk5vx u4x is neutral. They are placed near each other on an insulated table. Sphere B is briefly ,:ekx2i//dd5,exft b4uvlz n touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posi/ e n.3ikhf;cjtively?

  An originally neutral electroscope is briefly touch4xra-ag1xb a ::5sadaed with a positively charged glass rgsxdba:ra1a4 : 5 x-aaod. The electroscope

  An originally neutral electroscope,4x ylmd8lr -w is grounded briefly while a positively charged glass rod is held near it. Afyr 4dm-l, 8lxwter the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope + nio-k .e0ewp/nshs), and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Whn-opein. s)+e/swk0 hat happens to the leaves?

  A large negatively charged object is placed on an insulated table.agb.t+- iars5y vq28 c 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 isqa-b. ac yriv+5g8st 2 the final charge on each ball?

  Charge is

  What are the units of th f-vtm2zu33ra e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larg6p;d1lc5/ oej w8:o/-etrmbz0sj u a7eom6iner in magnitude tha:jeo/ /cor 6 jl5mmaeus- ;odp8ze twnb01i76n the second charge.

  Sphere A carries a net charge and sphere B ir3bvsn o 3euxq1 b))c+s neutral. They are placed near each other on an insulated table. Which statement best describes 3 ebno3rv))bcx1 su+ qthe electrostatic force between them?

  Two charged objects attract each other with a certain force. If the cr4il1ue:vg6auu 5 cj7harges on both objects are doubled 6e a7cu:iulgvr14u 5j with no change in separation, the force between them

  Two charges are separated by a distance irgw; u*3t *jdd and exert mutual attractive forces of F on each other. If the charges areuwidj *3;rgt * separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a zjq) txk 7l9jv;rwqaga3 0-6dforce F. What happens to the force between them if one dgjqla9 k73)r;w v0 6ja tqx-zcharge 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 separated by a distance of 1.0 x0(c5 nkp*hqp c/p2bg i/ uwv;m. What happens to the magnitude of25c pb;k/0xv*/ i c(puh wgpnq 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 hnuoc)m m+x)h3 appens to the magnitude of the force on the first electron if a second electron is placed nextn)m)uomxh 3+ c to the proton?

  An electron and a proton are sepa u cu2sv6o.4jrlgyp/2 rated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the proton2y2 glcjp4 . vus/or6u?

  A point charge of +Q is placed at the center ofpzlj . ((n6um,pdg/gk a square. When a second point charge of -Q is placed at one of the square's corners, it is obsel/gzum.( dp, p(g kj6nrved 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 eb*4qoy- v6tp equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N ap-y ev*bqt4 6octs 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 vector,buac6e*.s b y?

  At twice the distancegli4g9n;eg r)4w+cxj from a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a neh cslsu/hainqg ;6005 gative and positive chargs6 ni/0g au0h clqhs5;e along the line joining the two charges?

  Is it possible to have a zero electric field yczq3 no 3o9f(value between two positive charges along the line joiningoz f(ync3 3o9q the two charges?

  Electric field linesbwu ry 7*ixdi3v1/hr)y 31tues h(i5s near psitive point charges

  The electric field shown fgd.z:l nwq +yg5 rv5sh3jm+5

  Can electric field lines intle zf :-qdk*3persect in free space?

  A solid block of metal in electrostatic equilibrium is placek(+c 19kov4m ulu:dizd in a uniform electric field. Give a statement conlc4iv umk:o+91zd( kucerning the electric field in the block's interior.

  If a solid metal spheremqixn4 dc, a;3 and a hollow metal sphere of equal diameters are each given the same charge, the electricad c;iq43xm,n field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden tab( bu 4ou 5zsx80w+x.4dfu fmwele in a region where a uniform electric field is directed str.4ufxsw xo5zf0 w(4debu+ um 8aight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibriux bppbxv)q6u;( twf84m near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is et-i/g:*yfr xgrounded. As compared to the case without the hollow sphere, the electric field at a po/xgi -ytrf: e*int directly above the hollow sphere has

State three properties of conductors in statieo m8ft:*y:kc6p t-htxae1g;c equilibrium.

State Gauss's law.

  The charge carried by one elec6v/ pfet 7so 4;3n u+zej8nqxftron 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 :jwdsn x*nde46p 7kac-) t4iv+lpx m3u)n5n kcharge of +2.00 mC. How many more protons than electrons does th:pcnu7d+ml*6ea)x)nv 44nn3-5 dpj ixkw kts is piece of plastic have?

  What is the charge on 1 kg of progsl8d si*k ie.s-k:bl4c/xp 7tons?

  An atomic nucleus has a charge ovyc ,(s;5/qkbp pk+to f $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, havbe-pn5pye+8. * gakxi(x iq(ve charge values of 2.0 and -4.0 mC, respectively. Whie*y 5+nkvbxei.apx 8pqg (-( at is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m id d 4 hl;4emob0ch da9 uq44f.ufte c.o;r:f8from a second charge, and the force between them is 1.0 N. What is the magnitude of the second charl hf; udc.4auff ;c dmtr8h 9oo4q0:d4.i e4bege?

  Two 1.0-C charges have a force betweptxpkk(-)g o74 uehp,7d p5l cen them of 1.0 N. How far apart are they?

  The force between a i z+na/d3iswet: my,/$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially jdb-u gvd 2pik 7pe lf5:o-:o:2.0 cm apart, experience a 1.0-N force. If they are moved top i b -j:k52eodgdvo-p f:l:u7 a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0f2*ysx5q7x7y3to h ub mC are placed on the x-axis. The first charge is at the origin3hxt7fo7qsy 5*yub 2x , 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 the charge at the origin?

  Three point charges arpj6nhp-1j c(te placed on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the rig6tjpp(j-nh1 cht 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 po-*e6msmkc cq;,tw s h4sitions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.0*c ts -;qe4mkcmsh w6,0 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 s 08hx7.pz-gy(tw2mbgm7wz +rnyv l5 o quare, 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 f zy+mlrz2 7w.o7hym bw v-g05g(nptx8orce 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 i,4;gap; ptm 3eum osz1s at (0, 0). What is the magnitude of the net force on the 5.0 nC41tme ap3mup; ;z so,g charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nCisaa9* d 0o;ad is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directio*a;d90as aoi dn of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an eqx 4cyh2, uxm)uzu:k qes (nv(-uilateral triankuy,n2(qc :z4xs-x(hem) vu ugle 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 +4Qjna7 k2)skqb., which are separated by 3.0 m. At what point, on a line between the two charges, wo7)b.n akjkq 2suld 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 at x = 4.0 m. Whw0a8 izbu iprgla ,59)ere on the x-axis can a thirdlp),9 rzaiu ia5g8wb0 charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin anda;l nf 0un tdr d6eux361dwq69 charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the fordq ;3w1enf9t dnax0u66 dl ru6ce on it is zero?

  A copper penny has a mass of 3.0 g. A toq(t9kyqx7n w7v5h+ wjsi we alm 237b3tal 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 - db2w 7 qn2nd59pu0er/bxa yqthe force of gravity by the attraction of a fixed proton some distance above it. Howub bw x5-d7dye9r22 nqnq ap0/ far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting55eird*w oak2/yh aq2f95s,i usp w 6t threads which are 30 cm longf6 ei55q2 ihsdpr k/sa9tou*ya25, ww. Both are given identical charges, and 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 has a charge of +nqe4fyrs4ud +91sq 7c 40e. What is the magnitude of the electric field at a distanc1ucd 4esfnqq7+rs4 9ye of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fi xvdy ,fd 7e6szmul4-zt4q-y4eld at a distance of 1.50 m from a 5 4fvy,u-e7lq6 zds d -4ymz4xt0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. w2e n.lnz74j poatq:h aqd 17+What is the magnitude of the elec 1p 2d.7z:qn+aow7qjan 4ehlttric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chtn gdri g+u w53.n8et+arge. What is the direction of the elec+ i+.w guntde8n g5tr3tric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the fr x7 mx/duf-oy3w4+ hcorce experienced by a 1.0 nC charge placed at t -hxm3uc4o+x d7/fy wrhe location of the test charge?

  Two point charges each d ziww1 3xx4y-j:,ymthave a value of 3.0 C and are separated by a distance of 4.0 my3mdi :x tj-z,w4wy1x. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at th5jw- -hlh,;*mzew gem8s p 2ede 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fl2s-8m,ej; pmgh*e h-z 5dewwield at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and xfnkhd9:6 s/-;ee e yva -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the ele;:f9he/e dy6-esknv x ctric field zero?

  Two point charges of +3.0 mC and -7.0 mC are playnjh3( wg7qi bz( k2(8f sfyo1ced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at t12(hf nygjw fsqi8oy zb((73 khe point midway between them?

  Three 3.0 mC charges are at the three coe dn, q:-pv3morners of a square of side 0.50 m. The last corner is occomv-q 3 :dpne,upied 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 pla: lx d :ovc)nev*0waz9ced 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 electric field at the squar n: da:9ocvz*0e lxvw)e's center?

  A force of 10 N acts on a charge of 5.klpp 4xj m3*cdqu2u.70 mC when it is placed in a uniform electric field. What is the k*q37cjuu d .mplxp24magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass oe8t0 k4 qta2bhf $5.0 \times 10^{-3} \; kg$. 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 e2ki 2jh(urh5 p*n xd5tlectric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be 2h *h d5pi5ujktr(n2xsuspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball isncc lf 8aei78j+xo 8:qfku;-g placed inside a uniform electric field, and is sfoxfc j8+c u8knigq l-:ea87;uspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm(6 wn8e6a+99mzc j(9u yskctm mm cr1t carries a charge of +2.0 mC. What is the magnitude of th69rke ncj6umwc9+mzta( sm9tc18 (y me electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electrwz f.v7f)i*gkv+gxvt9fcl0ph8 f(+ l5pbd+nic field 6.0 cm from the center of the sphere?g9h pdg8f (zv)+p 5.+bxk+tlfcf 0fwlv7nv*i