State the law of conservation of electric charge.y+6 xy, v nsi:ef6l,dr

  Is it possible for two neuu;rof:npofi + gmmk0dy98k6w*1:tnfr- m f3gative charges to attract each other?

  Is it possible for a positive and a ixr0z ie 8cm* ve-8y2unegative charge to attract each other?

  A glass rod is rubbed with a piece of silknfhm22tjg*m f6 q * jm**lpev+. During the process the glass rod acquires a positive charge an+pj g22 mjmhfn6et*q v* fl*m*d the silk

  A proton carries a

  The model of the atom shod5c(mhxs6d wm9 ,xv1)uhjvzrqk 4-0xh(fg n 2 ws a

  A neutral atom always har(nw6l tb t+ohis05m;s

  An atom has more elec8i;jts yjs38ky:wjd a :hlo7(trons than protons. The atom is

  Materials in which the electrons are bound very tightly to ogb fjtvb g4 9g:ts 4q:puf/5ef ob/40the nuclei are referred to af g44t/5j fgsg q t/pbo4:b:vbouf90es

  Materials in which the electrons are bound very loosely to the nuclei75 y8of )v,b nub1nphs and can move about freely within the material are referrb, 8s vypnu)nfo17bh5ed to as

  A negatively charged rod is brought near o1etu tq 21d ,5rkt78joxdz5v wne end of an uncharged metal bar. The end of the trv 15t1 ,d qx 2j5zoedk8t7uwmetal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neu0j9+iq8l9 guf n3fwm ttral. They are placed near eaqfgj 93 0m9f+wniu8ltch other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively chargere3-j08b 8 k tyxny+syd rod charge an electroscope positively?

  An originally neutral electroscope d7x 3hzbn(v32 n+sfctxra5dp k3 h, /wis briefly touched with a positively charged glass rod. The entw / ak rd353vp3x dx7+(nz, 2shbcfhlectroscope

  An originally neutralx;nx oe)3 d/.lti4rk o electroscope is grounded briefly while a positively charged glass rod is held onl.iexx;dk r t)o/43near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral ef;7az5jc ( 4 0uvkshh:qbw9a ,kpzuw,lectroscope, and the leaves separate. Then bh0zwz;7af4,5(ak:pckhvs 9jq, u wu a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulatedn4q t7 8rklyj0 table. A neutral metallic balktjl7rq48 n y0l 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 final charge on each ball?

  Charge is

  What are the units of thzeqelz)ri:6o ;4cfz 2 e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated ts+urk2* rr p+by a distance d. The first charge is larger in magnitude than the second charge.spr++*u k 2rtr

  Sphere A carries a net charge and sphere6qv(ib.1 y7r1h1bwea)yt cjq B is neutral. They are placed near eachcwyt b61q ()ye1jh bq1.viar7 other on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other nryl(1f.8ej2 n;f z hxwith a certain force. If the charges on both objects are doubled with no c 8.(x;njfenrz 2y1lh fhange in separation, the force between them

  Two charges are separated by a distance d and exert mutual e5xn9/x9j +5xl6df fp9fxs owattractive forces of F on each othwx5sxx59f9efx+6ol nf d9/ pjer. 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 hy9m: pahog)ngutgu .:5;.8 ruv gv0m force 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 p rmhhuo tnggv v:g ua;98.0my)g:.5 uis 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 m. What happenwn ,zb(ks8gf+j5 6rhws to the magnitukrf 5s(g8b+jn6z w ,whde of 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 1lu8fzu/ngh3ap, a c,7.0 m. What happens to the magnitude off,7z 3u,l uhg8ac/anp the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m.6jfo hzrudmre4/+(9+c hqn 6b What happens to the size ru 4mh +efo6qb6+j/cz r( nhd9of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squ jrahvv aq1sh og. 3l5),-tn7ksq,pt7are. 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. What is the magnitude of the net electrostatic force acting on the positive charge at the center of th 7 ,,lratav7j 5gk)o3-1ps n q.hthsvqe square?

  A point charge of +Q is placed at the centroib46 pauflrl*wkh6;b 1d 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 other6bpka6fb1 hl4ru; *wl vertices?

  Which of the following isyz-k gf ,o i5qag83ck1,y2wl p not a vector?

  At twice the distance from a point charge, the strengckgwug 40 jzx700 rfa.th of the electric field

  Is it possible to have a zero electric field vj d( lcsr):7l;xc i:2 0ujobddalue between a negative and positive charge along the line joining the two chabi20)c dx:j( jds:;dl cuor7lrges?

  Is it possible to have a zero electric field u)mm qqjqun77d./n r f2z/2cavalue between two positive charges along nz27mqq /d./m ca urnjq )2u7fthe line joining the two charges?

  Electric field lines neaq f fde:kyxq9k6a92z8r psitive point charges

  The electric field shojm1*mq(lwej(: zmd m,:qvif+ wn

  Can electric field lines intersect in free spac:c*3jgx-g zyo)g d pi(e?

  A solid block of metal in electrostatic equilibriu z+3 gxj4rth8wq16cmnm is placed in a uniform electric field. Give a statement concerning the electric fxw+h t4 mjgcn6q3 1rz8ield in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each gx;vyck(ofiqhg3o(g +d) (.ps iven the same charge, the evgsq (gcyh okfip+;3(o d )(x.lectric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where ai7rf ,x bmd 9p,tmk81c uniform electric field is directed straight upward. What can be said concerning the c r,9cp dkx,tfmi 178mbharge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chj+ n bhf;,ta0aarge

  A positive point charge is enclosed in a hollow qdn:;,fk19o-dj;y afr 3 ekgimetallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere ha:g91f;y o3 kn;aeidf-qkj ,rds

State three properties of conductors ink-9p8z fdrq-g static equilibrium.

State Gauss's law.

  The charge carried byy;ojs,7yv vvfy:2+ 31ehvrhh 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 +2.00d/t *l:vaua / ()rqzdy mC. How many more protons than electrons does ta q*tl:du()/ yrd/azv his piece of plastic have?

  What is the charge on 1 kg of p;ppt. + me1jsra.ox/m rotons?

  An atomic nucleus has an / k+isv.cui(,)dzuwn0 gae 7 charge 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 -:ymvlh 2x,.o+pby r/g4.0 mC, respectively. What is the magnitude of the electric force betweenxgh, m2.y:bop v+/rly them?

  A 1.0-C charge is 15 m f7u,eyb uv8t7uy.c8 z :0:gyw7,shx z n3 ohyxtrom a second charge, and the force between them is 1.0 N. What is the magnitude of the second chnoyc37uuhw h .x 7tgey v,ty:0xb,uyz z:78s 8arge?

  Two 1.0-C charges have a force between them of 1.0 N. Hocv 2x oh8iuu4m;/ tod6w far apart are they?

  The force between a k scp-yiao1dwm4jthw1e)6 o*(, ig .m$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experien9vsz 8 ucoa-qwhl4x 46ce a 1.0-N force. If they are moo8zalv xq-h 4s9u64cw ved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The lv:n;yygan j0:-d;q:lcdi- l first charge is at the origin, the second to the right at x = 50 cm, and the third is aty-g;; vla::ilcl- nyndd: 0 jq 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 mC is placed a x z;*xtklomvi51k4bcgwt- 84t 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 electros x8 il ox;-44m*t1 wzkvgbc5kttatic force which acts on the charge at the origin?

  Three point charges are located at the following pzvrzb 5ebdidnj h3qw40x-ly, + z+(3zositions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC,rw+3zznqdx+hd0l (v43b5bijey z z - 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 square-s8r, sj;g mgoz8 tqo5, 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 fsg ,r8q; 8mtoz-5 jogsorce 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.m + 65,kujjsnn30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of t5k 6n+s,jjmunhe 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 npt,4b-:d bf v0v y.gv36ftnrcC is at (0, 0). What is the directiprby v. v3tdfb -6g fn4cv:0t,on of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the 7m:tor:xp5ctg/hs r *vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which amh:g5* t:cor7sp tr /xcts on any one of the charges?

  Consider point charges of +Q and +4Q, which are sa f9k (ao am,5c8uyo0mhm ke48eparated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q 5ufmak0 (9o ckha8aemyo4m,8 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. Where on.so knevo p,p) .3lxy; the x-axis can a third charge be placed so the net force on it iss lo.ep)pv n3,;ox.y k zero?

  Charge +2q is placed at the origin and charge -q is placed atpqs ok9p;wezv 3 m22h5 x = 2a. Where can a third o92sew2qmzp 5h kv3p;positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total ag :.lp2sz3-,k k3sa,ayxrf eof $4.0 \times 10^{12} \; electrons$ 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 the41ba475kdp hvl dym o( force of gravity by the attraction of a fixed proton some h(4o41p5 vdk7aybldm distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting n7nqo2 jmavas91(x9c threads which are 30 cm long. Both are given identical charges,njcv9xa 1n9osmaq 2(7 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 +40e. What is the magnitude of the electricr xy0c v9 bo.-0 altutgyy-42w field at a distance of 1.0 m fty0cvl.a-o-w90bu42g yyx tr rom the nucleus?

  What are the magnitude and direction of the electric field atod*to 8n6 lg2sep2xaq* r, p+o a distance of 1.50 m f*oa ps8 gen,*o2t6q por+dx l2rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the ma0d2:lf dh jo.)ow+bzp )o h/wzgnitude of the electric field at the location :2 jh)of) 0od .+ bohdp/wwzlzof the test charge?

  A 5.0-C charge is 10n* hk14 hvl(pa m from a small test charge. What is the direction of the electric vnh* ka1 lhp(4field?

  A 5.0-C charge is 10 m from3 1fu i5810 ob:tf1x8 pngc0dpd nxbuq a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge po0i8upubx0bx1fnfn1d d 85c3:q gtp1 laced at the location of the test charge?

  Two point charges each have a value of 3.0 hpikrn; 0mq/l 94+uo su dav-j1e;b(lC and are separated by a distance of j4ublu(p9nkqdv -hm0li er / 1o+sa ;;4.0 m. What is the electric field at a point 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 cmf0 1o zx3wyub rzzn )c)8hnzl h*9z)i(sh 6.kharge is placed at thezhw.kon l(hzmh)xi81bz 06*n)y3sz z9fr)u c 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed 4,pxe0bcuwll o u7.-w 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 pl- uc4elwwo 07xb,.utwo charges is the electric field zero?

  Two point charges of lal z0 /vhf hxcjg6b0 ()dd)s0+3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is tj/0 f()hsa0h dz 6lvlg c0dbx)he magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squar 0qi( ggl3alg6 mll-b6e of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric m lb 0 6l3ggi-(q6llagfield at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the cornemdc2c))zco)xy 0n3 +u klz r(irs o m0ur dxcncocz)3l +)i )(k2zyf 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 square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placeyph* 7s cz ws)4wwa()vd in a uniform electric field. Whatz)h7v(4 *s wpcya)wws is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hasu(ojx /cm2 p1q 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 pla2 vex+r:adn04gnd d-rced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for +:e -xnvrrga42d 0 ddnit to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Th6mm8i+bde0p7 odncjtg/t) 7ae ball is placed inside a uniform electric field, and is suspended against the force of gravity. t 0pmg /ie6dmo)b8t7dc7nja + What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magnia8sazxqoua ,+gb,8yys)b w73.gwvo ; tude of the electric field 5.0 cm from the spherbovu;.w,8aa8y+b, y wzq g saox7) 3sge's surface?

  A metal sphere of radi18sh v6ur ;yuwzq.i+bl6 1 vb(ysbf2jus 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the cenhybluys zw br(isf18v;6u16bj2 vq. +ter of the sphere?