State the law of conju5b5hd-ahd , servation of electric charge.

  Is it possible for two negative charges to attr8l +2vb3 zgqh, 6pdqhvact each other?

  Is it possible for a positive and a negative charge to attract each othdhere(9 mmj/ -er?

  A glass rod is rubbed with a piece of silk. During the process -hj+yg tu0y2c nrfudl02l ;0dthe glass rod acquires a positive ch +ult 0;0yhc2gr 02d n-lyudfjarge and the silk

  A proton carries a

  The model of the ato)/cfmmu(x kn0pf g.l: m di-(t;ocf4 dm shows a

  A neutral atom always 5 js8u65. ;kbislnslihas

  An atom has more electrons than protons. The a dcsu 9wx8ob,q/;wxq 1tom is

  Materials in which the electrons are bound very tightly to the nuclei are rd*)u(nrn(l0ysf ;cc referred nr fd( r lcs)*cu(yn;0to as

  Materials in which the electrons are bound very loosely to the n 4frzwy98jyyi 4etzu( y::i(xuclei and can move about freely within the mwey4ryy zx9( i8f( yu:i4j tz:aterial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. tq79 vjpv 6x6j The end of the metal bar farv679 pjjq6 txvthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neut- qz +fysh-zyy3 iv0o8ral. They are placed near each yvyy o0f -+z-s h8q3ziother on an insulated 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 po.u ; o25w6l(kpctqne nsitively?

  An originally neutral electroscope is briefly touched with a positively chargeve8 q 5zy.m5vpmf ,xn6d glass rod. The electroscop 8,v5y z6pmf5vqem xn.e

  An originally neutral electros wf7 gzhpzn;7/cope is grounded briefly while a positively charged glass rod is held near it. After the gfwn 77zhp;g/ zlass rod is removed, the electroscope

  A positive object touches a neutral electroscope, ankh35245 y 1-*kfbio: . eooz hyp5ynsrvr7eznd the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What zfkp1 v32. h 7 i 5r-5yzeos:onrkbe4* yo5ynhhappens to the leaves?

  A large negatively charged object is placed on an insulated table. A neu8 72uuhoq6iy6 n5vttftral metallic ball rolls straight toward the object, but stun tty 2o qhv676i58fuops 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 final charge on each ball?

  Charge is

  What are the units of the Coulomb constant(*zouaxcrt8qb0vq.nt7 + ee, 6h3jrg $k$, which appears in Coulomb's law?

  Two charged objects are separ3dn,1 hwb.(wwm5w yltid,1ylated by a distance d. The first charge is larger in magnitude thanb ynt w135.y1mwd(,ldwl , wih the second charge.

  Sphere A carries a net charge and sphere B is neutral. They 0rynq+c(ql9rv ye 8(cr 5 7pokare placed near each other on an insulated table. Which statement best describes ock9l+vnr8 0r q(qe(y5 y7cprthe electrostatic force between them?

  Two charged objects attract each other with a certain fooz j -rq.3c1morce. If the charges on both objects are doubled with no change crj-qz31mo . oin separation, the force between them

  Two charges are separated by a distance d and exert mutual acr2 *9 3oozlcj.xc.fpw ru 6:u/w qmm9ttractive forces of F on each other. If the cha3occu p.uwo9rx2 :96 r*jmlfz /cwq .mrges 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 1w y7nrq( 84yef d*znkogbihpo +.+h;force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers onh+ .1g7 +yw;ip8 k fne4 rhb(qy*ozdis reduced to one-fourth its original value? The force is now equal to

  An electron and a proton al(+0 ero5lfxl3kq; gd g mj,ybstyn0 6 qb665qre separated by 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 theq6;b(y56txe k f +llbg s 0jyqm60r5q,ndgol 3 first electron?

  An electron and a proton are separated by a distancej(b p/cpe/ajx 083 mjd0mjvw. of 1.0 m. What happens to the magnitude of the force on th0(cjp/e. jbm8/mjpd0 3wjv x ae first electron if a second electron is placed next to the proton?

  An electron and a proton a.-m;p3 x0( iblbory sure separated by a distance of 1.0 m. What happens to 3 ulyi- obp.;r0m xs(bthe size of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placeom3nu4 ql0 j1h6dc ut-wr6xq*htr4t;d at 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, idwd3 cq-*6t tx4n 61lh hrmuo uq40tr;jentical 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 ce ;;pv;nkbjxa*mrfwam :ri:u mf x/ /b7;mg7v;ntroid of an equilateral triangle. When a secondf:m :xr ;v7;xmmrja/;; k;u n* mapv/wbib7fg 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 vertices?

  Which of the following is not a vector?t/l0 4b/qczwj ha;.xn

  At twice the distance from a point chargesu 9-alwc(o9l, the strength of the electric field

  Is it possible to have a zero el)+zv;)wnb: qja ah6s sectric field value between a negative and positive charge along th6hb;)vajqwsz +n ) :sae line joining the two charges?

  Is it possible to have a zero electric field value betwena(m /i9 bsf7aen two positive charges along the line join7 sbimaf9/ a(ning the two charges?

  Electric field lines near psgm.j t:+ bjjy6itive point charges

  The electric field shown gw* dj u eqef8:b)e+/i

  Can electric field lines intersect in g,9-o8te xeubfree space?

  A solid block of metal in electrostatic eqy9t0o0+idfy ruilibrium is placed in a uniform electric field. Give a statement concerning the electric field ii f o90dtyr+y0n the block's interior.

  If a solid metal sphere and a hol n5p,:.yb oq b1otefwp/9rs ;ulow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surffb y/9 q, owe.n1sprbo:tup5; ace is

  A cubic block of aluminum rests on a wooden table ib7sxcn2sti7 . ;wvst(n a region where a uniform electric field is directed straight 2(x7 bstcvwsst7n i;. upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an elgk3ikl*1md o0 5o8ionectric charge

  A positive point charge is enclosed in a hollqrp05vq)b,5n q1/ ew a v2xyamow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly aboqa qq5b,/v 0rp avw2xy1 mne5)ve the hollow sphere has

State three properties of conductors in static equil: mogc)u,rh*5uvng wew1p 82 nibrium.

State Gauss's law.

  The charge carried by one8:tm,apzyr cc,99szh 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 c( l, +j 8koevqyd,.tdmore protons than electrons doese .o,, +qd c(kydt8ljv this piece of plastic have?

  What is the charge on 1 kg of protonsn8d+ctbi.7 jr?

  An atomic nucleus has a chargs+i;ik ln8e8)ioth/xu,;hc qe of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated be-i qcx3 xk h4qu)j 68wblo8x5y 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force bet-84 u8ojkewqqb3x 6xc il5) hxween them?

  A 1.0-C charge is 15 m from a second charge, and the fqqbdyzy:-0z v4h 8rh1orce between them is 1.0 N. What is the magnitude ofz0qq:y hryz8h vb1 d4- the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart 9hmkeeb 6a-wlnn ix 3rh+4-fl qdq72/are they?

  The force between a a-c jsgnv1 d*r2b k8i($30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, ic1kw*z k y3sx5nitially 2.0 cm apart, experience a 1.0-N force. If they are moved to 1s3cxkkw* zy5 a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0)tzk8 zhbpzkg1 r +o)) mC are placed on the x-axis. The first charge is at the origin, the second to the righ) t ) zh1p+zrkbk8)gozt 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 aregx knn8, 0ao2x 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 cm, and +4.0 mC at the 100 cm mark. 0n,akg no82xxWhat 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 positions: Q1 = 2.00 mC atil y, q6zn*u5m);k fi rxz5ij* x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the fo; jz k 65mri*)i,i5nuyzf lxq*rce on the 3.00-mC charge?

  A point charge of +Q is placed at the centerbu4280qp pa9utcu jg9 of a square, and a second point charge of -Q is placed 4u29ujabcg8t 0pp9uqat 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 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 (u pn)yr:3spn; 0, 0.10 m); Q3 = 5.0 nC is at (0, 0). npnsu 3;y :pr)What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2cr 4gm21 rpxj. = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net f.14 r rjxcpg2morce on the 5.0 nC charge?

  Three identical charges of 3.0 dey6, n ugyfyr )9q4k0mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on an9fqnerg , yd u)y64y0ky one of the charges?

  Consider point charges of +Q and +4Q, which are separated by;7w(7a; ism(uc sabqq 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 act;7aqwsuq; c( sm b7i(aing on it would be zero?

  A +3.0-C charge is at tkxpf -hrt 37jmso (3n:he origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can f 3phn(3 xsr:m kj7-toa third charge be placed so the net force on it is zero?

  Charge +2q is placedhl j th+0ku0bz gsrd20h( 1x7w at the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so 0szd0b1 tg rh k2h+ulw(h70jx that the force on it is zero?

  A copper penny has a mass of 3.0 gd2xz9ywc,-r1g5j 9ktr dsp , f. 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 gravity by the atw7,3pdww3;3ecrys,mh kkj5x traction of a fixed proton some distance above it. How far abw7w sxe; m3wk,5khpyr ,3 dcj3ove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thqv,dptg 3 +)z(ls ht1xreads which are 30 cm long. Both are given identical charges, and the ele1s(qzd+pt3 v ltg),x hctrostatic 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 +40mu0j,vcd jia: r. )j3xe. What is the magnitude of the electric field at a distance of r :jdj3imau .cx0) ,jv1.0 m from the nucleus?

  What are the magnitude and direction of the electric fieldf/p6xy qesil 0)p 9qw1 at a distance of 1.50 m from a 50.0-nC chappy0qswel9f xiq/ )61 rge?

  A 5.0-C charge is 10 m from a small r/ obc3 qmd nlqzn9 z(*+6(bnmtest charge. What is the magnitude of the electric fznql(z bb6n9 nrm+mdc3o q *(/ield at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of t oj3i* *dgbu.i6us;ck0 dwf*yhe electkgfus*ijid u;d 6 *b.y03wo*cric field?

  A 5.0-C charge is 10 m from a small tnsy2 fq-cz ;(nest charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test qyncfs2; zn- (charge?

  Two point charges each have a value of 3.0 C and are sep1bvl c +j ymqh sl*ftw.(a(--oarated by a distance of 4.0 m. What is the electric field at a point midway between the two ch1w +avshb. l*(-cylj -qmto( farges?

  A 5.0-mC charge is plac (nf1r vwd*w4fed at 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 f*r w (n4wv1dffield at the 30 cm mark?

  A 5.0-mC charge is placed at the 0z6 /c0gvhe8fypvx y7l2g 3b a8 cm mark of a meter stick and a -4.0 mC charge is zg 73gyyb60ac28 hvvxl/fep8placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3yawhz dp+)/ 3v.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the eha3zy/w v)p +dlectric field at the point midway between them?

  Three 3.0 mC charges are at the 0rs /5rlc:pm+ 70 t5zydisr xcthree corners of a square of side 0.50 m. The last corner is occupied b i7sr xl5cz0/ytmd rs:50p+r cy a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on zy9f*xs d62t ha side. Charges 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, 09tsz6 fxh2yd* ); -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.yded):sbymv +e .,e+r xa9 8p; b(loii0 mC when it is placed in a uniform electric field. What v+ld9)i+aeby;se 8pxde :roi,.bym( is the magnitude of this electric field?

  A particle with a charge of 4.0 mCbea r(;w6n- qb 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 s5hsx vccl1 i ip:m/+ *gk0ft3in an electric field of 6000 N/C pointing downward. What charge mu p hsfit*l3xk:g+cvc m0/5is1st 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 ly*:rk y;n *tu5zt3hqis placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction ofr *y k* hn:3tuzlq;ty5 the electric field?

  A metal sphere of radius 10 cm carries a charge ofxs, dbxlu ;34m +2.0 mC. What is the magnitude of the ele3d,x;l u4mxsbctric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a cpe.pf0q mygk) w2i; 8qharge of 3.0 mC. What is the electric field 6.0 cm from the center of the ppywq20 .f;8m giqek)sphere?