State the law of conservation 6k/oym0q px i7of electric charge.

  Is it possible for two negative charges tobj*1lccic xo ;5csx 0/2nd :dx attract each other?

  Is it possible for aop5hmdjozy),-g x/a ) positive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glassmxq)6x l9 tda8 rod acquires a poxtd6xlmaq 9)8 sitive charge and the silk

  A proton carries a

  The model of the atom shows jg/ o6kl y7 2mcw*nvt4vyca7* a

  A neutral atom alwayhzof9 u+jqkqx9c25) 5j ,h -plxh .-lmjazib1 s has

  An atom has more electrons than pro +v0iii5* ozdftons. The atom is

  Materials in which the electrons are bound very tightlylxw0b e4i2 xmg(35 r(gk, mydo to the nuclei are referred tmdm, 4 lgykxgoixe(r52b03w(o as

  Materials in which the electrons are bound very loosely to the nuclei and can mhia;crls//nu3 a/n5 zove about freely wirua3;n5 s /lnh/ ia/zcthin the material are referred to as

  A negatively charged rod is brought near one end ofjhlofcpw+1 17 an uncharged metal bar. The end of the metal bar farthest from the charged rod will be p1c lhj7w+of1charged

  Sphere A carries a net positive chargeyl(vyh//rrtv /z(tdx9zc c .;, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is c. (yd/x/y v ;ht(rclz9zcrvt/orrect?

  How can a negatively charged rod charge an electroscope positivelya7ws 6 5.xcy34o8ynw: chmksd ?

  An originally neutral electroscopdz)0 dybdaa/4y*a2y ie is briefly touched with a positively charged glass rod. The electroscopeadz*2)aby 4 yayi/0d d

  An originally neutral electrq3y4/* o9jipeas:b vboscope is grounded briefly while a positively charged glass rod is held near it. Afterqp/ 3o bjs9*a:ye4vbi the glass rod is removed, the electroscope

  A positive object touches a neutraltf+ipo(kqxs iw s+1p*c+m12 f electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does notp( ftxps+1qw+mo2i cifs k* 1+ touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A ne+q6ukxh7o.ox2358 pe cxf s.evwyvi0 utral 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 fik7ie0e.863cw.xpyvx2 ooh+qsxvf u 5 rst 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 c3 0 vpss32ebko i)/) c.(mfyho;own c$k$, which appears in Coulomb's law?

  Two charged objects are separaidw7 w g/w-,wdted by a distance d. The first charge is larger in magnitude thand ,w g-wwdi7/w the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placdrrjhkfs64 bo-,10 rer.;uez ed near each other on an insulated table. Which statement best r1r,b6er4;0seufhj .rozk d -describes the electrostatic force between them?

  Two charged objects attracthmy2lp m2u.5;t p7owg each other with a certain force. If the charges on both hp2opt 2.lw; mmg7u5yobjects are doubled with no change in separation, the force between them

  Two charges are separated by a dist;tn, om((rd7rvmufx. hq92nwance d and exert mutual attractive forces of F on each othernw;q.u f x(2dohr(7r9 tmvmn,. 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 fqhlmmp7x5n 8 .orce F. What happens to the force between them if one charge is doubled, the other charge i8x5n qm.m7pl hs 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 m. What ha0r1 qx(7jo n2qrpv dc8ppens to the magnitude of the force on thenqr cpor7qv2 8 d1x0(j proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance o1;s;s i.zqn6ncy5)q k hjh mm8f 1.0 m. What happens to the magnitude of the force on the first electron if a second electrmc1q h)sqi. jn5 ;kn8sz6;hymon is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens to)fcnm *6j8 mf-a5j bhh the size of the force on the proton if the electron is moved 0.50 m closer to the 6hjj8-f*mah bnm c5 f)proton?

  A point charge of +Q is placed at the center of a square. When a second point ,thrn,t4o) l9 )ysp9efeuy-d 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 thslp fteeod 9rh4 un)-yt9,),ye 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 isp s6m/54wfa jd5gk7 ct placed at the centroid 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 fpd7ma/tsj4k5g 56w c the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following ;-i iz2z9g j x/ idpihpe:ql5*is not a vector?

  At twice the distance from a pn)ieg l,i,+rv oint charge, the strength of the electric field

  Is it possible to have a zero electric field valu5-* px+ 40kuau 8k kagjs0svqpe between a negative and positive charge along the line joining the two chk00p 5-sa aj8gk uks+qp v*xu4arges?

  Is it possible to have a zero electric field va1u m9iev9:w*q ps: ykulue between two positive charges along9:wu1e: us* k 9vqmpyi the line joining the two charges?

  Electric field lines near psitive point f-mqkzoce v0lb4 / x1x+-gso(charges

  The electric field shd+muh2 gg.cs+( be6xhown

  Can electric field lines intersec t 4-i vr)sldaa)2kle9t in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elej 8 f45zd jun*9kr/b ki)yhiiuj*p2l-ctjybup k/ ifz9 lnrj48h*i*kj 5 -d)i2uric field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere xp)4,aq)cchbsa9s 4qj ih7h )of equal diameters are each given the same charge, the electric field (E) midway between )ih4hj cs) ,qh94a) 7spca qbxthe center and the surface is

  A cubic block of aluminum rests on a wooden table in a region rsrost i0zjyj2-*5; g where a uniform electric field is directed straight upwz -y2g5os;0risj r*j tard. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostn l*9 dab:cxw3atic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grounde;; ltrkunyo) tbu89d- d. As compared to the case withoutu-9tlduyn k b;)to;8r the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in s7rh, rkxfip 1 g0sl89qef5tvftr + 7c5tatic equilibrium.

State Gauss's law.

  The charge carried by one 9u m7, gbndegcem7j11mq91 ll 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. v5yt ,m,hzo6s How many more protons than electrons does this piecty,v s m,ho6z5e of plastic have?

  What is the charge on 1 kg +d0 cu, i o3bpxn0ozo)of protons?

  An atomic nucleus has a charifmltk;sv204biu0)da q649 .ic .om l zcb y8rge 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. b) 0pcpe9s7 vaqp(o;;/dp gyv0 mC, respectively. What is the magnitude of the electric force between t7d;qs b/(;pvgeypc)v 9p0opahem?

  A 1.0-C charge is 15 m from a so wd0zqb 5y5b7econd charge, and the force between them is 1.0 N. What is the magnitude of the second charod7y5q b0wb 5zge?

  Two 1.0-C charges have a force between them of 1.0 N. How far - x6 n -c5huc;a4wpyrjapart are they?

  The force between a u/t4ayw-;r o1 ktjf 1+yz duh5$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exper-ms8s25 yedstience a 1.0-N force. If they are moved to a new separation of 8.0 mes 5yt s-s28dcm, what is the electric force between them?

  Three identical point charges of 2.0 mC are plawvwnaoi t,/m3k;x)5d ewixp1b*15m t ced 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 the charge at thet io)pw/xw m d mi1tka,*;55 3wvbx1ne origin?

  Three point charges are placed on the x-axis. ymdbm 5cyi 77vau2r:6 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 admbyc5 ua ri 7vm72y:6nd direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at tyz 3-iz5dae0e ,hucl1he following positions: Q1 = 2.00 mC at 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 0-il yau,5e3zchd1e zforce on the 3.00-mC charge?

  A point charge of +Q is pl su-v2,w m,6aapm9r)bi7xiwqaced at the center of a square, and a second point charge of -Qb-m wvu,p) a9r,m7 w2i qasix6 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 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(ju 1a/ maz+/kjdv7nvly uu)id4j: y8.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge?4kn y adu)d7 u(8 u+yja /ijvl/jvm1:z

  Q1 = 6.0 nC is at (0.30 m, 0); a1o cp edle0o0yv3 7x0Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atla7o de0ex0vcy 30p1 o (0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 ke,qmc+b 4w*wdm/w1ku 3a)a imC 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 any 1d34)bwm ,wa/cu we mq+ak *ikone of the charges?

  Consider point charges otjtk9n , )2kuaf +Q and +4Q, 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 would be 9aj2,)kkn t tuzero?

  A +3.0-C charge is at the origin and am ).;uk e-iu*yu 2:pjwg b1frl +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the uf w uu1:rilk2 ;*jy-ep)g .mbnet force on it is zero?

  Charge +2q is placed at the origin and chartvf* :eg g;m2fge -q is placed at x = 2a. Where can a third positive charge +q be placedfm2tv f;gg:* e so that the force on it is zero?

  A copper penny has a mass of.k -6+,c3oy xkoaxmp j 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 against the force of gravity by the att/sd3:x+. o2x6(mxu vz7vv ypab jnp:mraction of a fixed proton somdsx+omxvmjv py.uavbp:z237 6xn/ :(e distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a com 6a8btvy8j,lvoitzop:y644t i 4xg ) jmon point by nonconducting threads which art4x v,lo6t8 j:6a io84 bztvgj4p)y yie 30 cm long. 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 +40e. What is the magnitude of thegi t-e.bcqfte 4) gw). electric field at a distance of 1.0 m from thgg e-.4qcf.i)tt) w bee nucleus?

  What are the magnitude and direction of the electric fielm7;eg 1z5be rh5drlj n+t8: wld at a distance of 1.50 m5 wh+r nl bem18j;:7rgz etdl5 from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thaqbt2m: vot +kp3kz(/ e magnitude of the electric field at the location of the test charbo :2(z mkatq3kp/v t+ge?

  A 5.0-C charge is 10 m from )qceq. (czu8da small test charge. What is the direction of the electri 8qe )c.udczq(c field?

  A 5.0-C charge is 10 m from a small test ch. +on +*z q1hqztdi*lharge. What is the magnitude of the force experienced by a 1.0 nC chargehn +zqqtlo* *z +hi.1d placed at the location of the test charge?

  Two point charges each have a vmkz35hc5d reg m z2vvt:2a 8-walue of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two mzm-285: kdavwrh2vgtzec53 charges?

  A 5.0-mC charge is placed at the 0 w.)5pjfxywe u*ok0l2 cm mark of a meter stick and a -4.0 mC charge is placed a*l5 2jeoyp)x fu.0 wwkt the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm md;,*pm3h1qgi 2z qwso ark 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 electri,g21wiqmdz3hp ;oq s* c field zero?

  Two point charges of +3.0 mC and -7.0 mC alr4qe9m:r() qzwaaili 4 ( mjrf63e,are placed at x = 0 and x = 0.20 m. What is the magnitude of the eleiwqr(:m(q9a3rmra4 z,)a j ilfee l64ctric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 rsbt1 ,ca jn),39zdpw m. The last corner is occupied by a -3.0 mC )dtb9swz,ar, 3n 1pcjcharge. Find the electric field at the center of the square.

  Consider a square which isj n)e *pi+kqqiqn52f,lqwh3m 0 qh0)y 1.0 m on a 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, 0); -3.0 mC at iypn),h0qh)j0k2 n5q3m e w+ilfqqq *(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 iwwh7+ (m*uf ,i(nho+/o47hiiatvc o e s placed in a uniform electric field. What is the magnitudcfw o/nwo7hh ,*t(e (voi++4i m7aui he of this electric field?

  A particle with a charge of 4fvu6r 8z3o o:pn u nnru-9j;xrat)13q.0 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 massfw*ala*.lcbq y 72r +6uz ,rhu 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charglwr2 hf7azul*,.u 6brqc +* yae 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 vy lpj.lz6,9c placed inside a uniform electric field, and is suspended against the force of gravity. What are the .lz6c,y j lvp9magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is 8v-iyq gx)1baqe aat*4+dl/ b the magnitude of the electric field 5.0 cm fdbaexg/aab1vy lqt qi) -48 +*rom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wh;4grz0;i7zja a)xmnvyn . x3cat is the electric field 6.0 cm from the centarczaiynn g;4v0z3j )xm7 ;x. er of the sphere?