State the law of conservation of electric pnp 3 ,xmt8gi+charge.

  Is it possible for two negative charges tpul3 bf-a desvp c ar*6)3+7fjo attract each other?

  Is it possible for a posititq xk. n: veu-6t,zg1bve and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silkh 8b9jw8g4 dzp ;z.qyn0-si obq ze(p8. During the process the glass rod acquires a positive char(bi-z qe 4 h0; nd8.gos8z 9qyzj8pbwpge and the silk

  A proton carries a

  The model of the atom shows ao,yyxsyo,fv 4 +ws, 7t

  A neutral atom always z gyr0dg g/ b9w)t3r-yhas

  An atom has more electrons wf w2 :x:bmt9nthan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei z/,c 1ri8awp :f6mmcsgx /bu.are referred to : cazp,gcu6 8m1i wsm br/./fxas

  Materials in which the electrons are bound very loosely to the nuclei anw ef+s7gcwyjv9fc14) ; -fx6x cz4 1o8tbvlbwd can move about bvfy xf+j6-w7 zc1 1 l;gcw8ve4ctxfo)s49bw freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal e/ 8w(rky-0 nwpdqj;l .yzv5dbar. The end of the metal bar farthest from the charged rod will be chrwk(8yd w q .y;z-0nedj5vlp /arged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plaaq *zmb5.paf/ cg2tyn0 /t -rmced near each other on an insulated table. Sphere B is briefly qy5*ptt.z am cgr f/b/m0n2a -touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an y.qc mum*4huzs8::s3xe+ itjyj9dz b g7 9b 3aelectroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargt3a-ksih kyw8 7kzi ;mz1g+; jed glijgk+-zhk;zy7i k 18m as ;wt3ass rod. The electroscope

  An originally neutral electroscope is9iy(tu4semwfej j q6m +(0d+g grounded briefly while a positively charged glass rod is hf0qgstm ++y(i d (ewej49m6ujeld near it. After the glass rod is removed, the electroscope

  A positive object touches aexa ft)j/u e3f:,nq6fmth:;o neutral electroscope, and the leaves separate. Then a negative object is brought n t;/ahefuxftofn 6j:q ),:m3eear the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placei30 8 xfc,ykxb9j)gpu d 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 touch the negative object. What is the final0u3gyp)8cb,9jxkfi x charge on each ball?

  Charge is

  What are the units of the Coulomb constan *z4rb kojnkis61f6)phdu.e+ t $k$, which appears in Coulomb's law?

  Two charged objects are separatg d* w71pvebffk..4 pped by a distance d. The first charge is larger in mag f .vpe7f* 4dkp1pb.wgnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. Theuy l 6tggo.ip,rw;i(e:a8m/ yy are placed near each other on an insulated table. Which state,ag(tg;w o8ym.i6/ rl:ieu p yment best describes the electrostatic force between them?

  Two charged objects attract each other with a3xy; auyefljo3 s cb*a; 43d0i certain force. If the charges on both objects are doubled with no change in separation, the f *ca4eb oyd3u0x ;ila;3yjf3s orce between them

  Two charges are separated by a distance d and ee71g6fk;j8b2l nz v/jxpw7g exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces?;jzgw 6bx l/f1peg e7j7k28n v

  Two charged objects attract each other with a f:osy79-x4 4 ubnvql daorce 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 one-fourth its originn:y-a4d9v u4bqlox 7s al value? The force is now equal to

  An electron and a proton are separated ogy.p/ c;ds kq 1/e.hnby a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electrcd..ynesh/ kg /;1op qon?

  An electron and a proton are separatu x p2tqt7/d;aed by a distance of 1.0 m. What happens to the maga7x/ 2;dtt qupnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are sepa* z)av.;wre x6lfxa y/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 t;/ . x)ay6afrzx*ve lwo the proton?

  A point charge of +Q is placed atgwr+ya* bjxv65xrl7 f;q;0 bh the center of a square. When a second point 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. Whatvab0;+*f h5 xqbrl yxj g6;w7r 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 oeh i;d4x:dihki-h0 ) gf 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 ceid4ge ;:k-i hdhi )h0xnter charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is notqak:9f (fjw rv hf.8d, a vector?

  At twice the distance from a plh ar6+j r6jri8tt1c 0oint charge, the strength of the electric field

  Is it possible to have a zero elecn a, 0fnbk1a2mtric field value between a negative and positive charge along the nf0nmb1a2ka,line joining the two charges?

  Is it possible to have a zerg1ob sdz zw210ebf; :v1b*qako electric field value between two positive charges along the lineb1bsewbd *g zf zao;2:qk101v joining the two charges?

  Electric field lines near psitive point chargfo + xwwmml761*(8k3l - lmucg5ymewv es

  The electric field shy ;wuqozc 12t4 :z:lrkown

  Can electric field lines inte 8 l9), msz;d6cus2khqypwba+rsect in free space?

  A solid block of metal in electrosvw4smf 9k1wia 1 n*4;bk+i ne av0pxe3v5ty 2rtatic equilibrium is placed in a uniform electric ;b vy t41f42e iwx5ekm*v39 +k0nniav1rwaps field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and kxvb k77 aued/3b 2b99i;juhsa hollow metal sphere of equal diameters are each given the same charge, thjhvb7x u 7d;k 9/i9s3uk2ebabe electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden d nm +ptu43t/utable in a region where a uniform electric field is directed straight upward. What can be said conceru4u+nmp t3d/ tning the charge on the block's top surface?

  If a conductor is in electrostatic aw ytsm :,q eh8o-*wqz-- ;gdpequilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundedp ti4 3bkp -p.b,y m*/ske9xkv(s8v tq. As compared to the case without the hollow sphere, the electric field at k bst pk-v(biq tk,4*/98pv3e.m xyspa point directly above the hollow sphere has

State three properties of conductors in stati::1fjp k c(3symfhg1vc equilibrium.

State Gauss's law.

  The charge carried bz5- qlorht*r j7 kk-l0y 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. Howb6 g a(sm4fkuzw z3-4o many more protons than electrons does this piece of 3ou4wb4zas f z -6g(mkplastic have?

  What is the charge on 1 kttt a 46ithg+cb o; wg2hilg0,c*q,1dg of protons?

  An atomic nucleus has a ur yq6 atob w:6.j54vlcharge 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 2.0 and -4.0 mbi+2tnkz kmq(:yt/x jw3 7(ic+o nz, cC, respective /nkkztbc xw(i+mcz:3qin( to2 j+7, yly. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the forcez 29rpn2 rkgm8 between them is 1.0 N. What is the mpn2 zm r89rg2kagnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far agis(t4 nr12w4n49b-:r fm acexdf0 txpart are they?

  The force between a 4esp fm.(8d;hgd c.xs $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exnkw;( q v-v;zurlf8(jerw j8. perience a 1.0-N force. If they are moved to a new seprnklv;fr(-j 8q we z 8v(.w;ujaration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on thevvz1ypwv 3* q1idz w+. 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. Whypv i31 1zq+d*.vzwvwat are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed (07xmhx4udue6ltj f8 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 cm, and +4.0 mC at the 100 cm mark. What are the magnitude and direction of the elechxxu(e4 j70dlmt8 6 uftrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mCcn c r/je2 2jzln(5cm, at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m.,2c( c ez 5m2lrcnjnj/ What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed 1gld(8wga b9wp34a k16 rew fzcn,x i9at 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 the positive charge at the center.w( 1a,rgegk 4xfb6 9i3 aldwc9p1w8z n 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 = 4sbru0 a0orq :-1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). 4o0u r 0srqab: 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 u;lpn -y79 7 2yodurmjnC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC7mdlu;y yrnp ju92o-7 charge?

  Three identical charges of 3.0 mC are placed at the vertices of b d/d6kpmldeh62u,n(an equilateral triangle which measures 30 cm on a side. What is the magnitude of the eld(bk p2u/,6lmhnedd 6 ectrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by dc) nbv:a8cxewe 5d-cgl(;.m4b6 qkg 3.0 m. At what point, on :b-ge4 8wbadc n.lm( 6vgke5);dcqxc 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 oc:h7 joxn8,w vnk67 x.xi8x)h )asykqrigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axi8ix,7n6 qk7h.vxjhw ncs:)yx 8)k ox as can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2ant3 ltw0/tqe e9)9pthj c)a(q . Where can a third positive charge +q be placed so thatqct)09tt (9jpae /)ew3 lqnth the force on it is zero?

  A copper penny has a mass of b9j5vq goau 9*chv z *jg8z//f3.0 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 gr.(3glskc z 3yaavity by the attraction of a fixedz sgcly.3a( k3 proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common po3leuspns4;8)cgkz e2 int by nonconducting threads which are 30 cm long. Both are given identical charges, and the elepsnl z4e3;k2 gsuce)8ctrostatic 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 +401llja)*frdn zp0 s 5m9e. What is the magnitude of the electric field at a distance of 1s9p lm n )5f1jd*az0lr.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dis0 nz3tvbh/s99jv z;qx mhb/6g tance of 1.50 m from a 50.0-nC sm;t 6/9z0 j9bvqbvg nhhzx /3charge?

  A 5.0-C charge is 10 m from a small test charge. What is the ma2tp+9uydl v i.gnitude of the electriv 2u ly.9pt+dic field at the location of the test charge?

  A 5.0-C charge is 10 m from a s ec;mnh-*v (xboory/:mall test charge. What is the direction of the electric fien- b(h:v*yec ;oo/r mxld?

  A 5.0-C charge is 10 m 1d ,ykkl*mh8v4 y7bhbfrom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the t v l,m78k4bby*khh1 dyest charge?

  Two point charges each have x7*:9n+lvxk:m-ovdrxkd .eur:p kn 3a value of 3.0 C and are separated by a distance of 4.0 m. What is the r7nnlp3 :*. oe xk-kmr+v9kdxx d:u:v electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meh3u)l+hs o 0ew lh,k96orp+zlter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm m+lks 3urow o+h) h0zl,l6hp9 eark?

  A 5.0-mC charge is place iqy47xh 1gsf)d at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the ele1s4)x7 giy fqhctric field zero?

  Two point charges of +3.0 mC and -7.0 mC are pluvgfaps 7 3)7u1ky f.xaced at x = 0 and x = 0.20 m. What is the magnitude of the electric fieldus1.f 77akp3 xufg v)y at the point midway between them?

  Three 3.0 mC charges tws7it oz9j0a, m(,ht are at the three corners of a square of side 0.50 m. The last corner is occupied by st zh witao 7m0(j,t9,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. j+ f)i3 jhp1rem*e6ea Charges are placed at the corners of the square as follows: +4.0 mC afe+ae*hie3r mjp16) jt (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 square's center?

  A force of 10 N acts on a charge of 5.0 mC whejs 9)0v t8 erb8u jjtg7na41nln it is placed in a uniform electricb 078j9vuage1 rjnnl8 jtst4) field. What is the magnitude of this electric field?

  A particle with a charge of 4.0hyv(u2cxkk0eak1yi lg5:wu 65 j t;4a 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 inz ;,z0 nwaqy;8psl2 bs an electric field of 6000 N/C pointing downward. What cha2 naswyzzp0b;s,q 8; lrge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed in67 zb.p-wg ai*y s cokr a-now).i/x+hside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electra7*bhnrx)y wcoaip io.+-. /zkwg-6sic field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magis,1 .5pms (hiceh0gg nitude of the electric cihim e1p (gs0h,g5s.field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a c46v3zjyg7 qayk0 br6 mgbj w 7o1g9le;9wxb0k harge of 3.0 mC. What is the electric fz0w 0x;9gggbawj 3mb 17e9jkqo6lkr47bvy6 yield 6.0 cm from the center of the sphere?