State the law of consemx4du n4u1f; vh::olervation of electric charge.

  Is it possible for two negative charges tobd(f rse5e : +zn c43fjwgz q, yqm(iq(u;hy48 attract each other?

  Is it possible for a positive and a negative charge to attract eap9(ngr j ya6a03m k7crch other?

  A glass rod is rubbed with a piecwn2bcv4:iv7er3 rl u:e of silk. During the process the glass rod acquiresv: bc2 urn7e4 iw:3vlr a positive charge and the silk

  A proton carries a

  The model of the atom shows afuj ot,yo.kaf -1noo. 7,rj ;y

  A neutral atom always has)1up:.n zv,wx h)au.5uop k-dhyv (tz

  An atom has more electrons9c6 tht65mxo605oc aw 2u2lzy drgel7 than protons. The atom is

  Materials in which the electrons are bound very tightly to the n 2 id3lecl,yo* l0)rmj.zd-bn uclei are referred to amz*y lin ).0 dld-,ebr3lc2ojs

  Materials in which the electrons are bound very loosely to the nuclei qw4j4fvi if736 y r x(;bvmw+jand can move about freely within the material ai4;x4 rvqv+i6 7 3bwmwjy ffj(re referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar1.v u6jl;x:lrmnxmph fi 898y. The end of the metal bar farthest from the charged rod wilh rxil6.18pnmlvumyx jf9 ;8:l be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Thetq f-+u sdl8h1y are placed near each other on an insulated table. Sphere B is brieflyt f +dq8uh-sl1 touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope py(f-gu8 7ht1zxx wy xgn;n)r- ositively?

  An originally neutral electroscope is briefly owb3a 245nuoqk7w 0) z:glgsntouched with a positively charged glass rodq a20 n)n3w zouwk4gs5b7og :l. The electroscope

  An originally neutralx*l( bup1:2d6 f3 ac4j5wiwz hxdb8sg electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electropl281f d3bwh 6gj duz:xcwa 4b xs*i(5scope

  A positive object touches a neutrn/90ifw)ceyx ( 7e ojv,q jg:wal electroscope, and the leaves separate. Then a negative obj o(vx:9i) we7j/fcyje nq0w, gect is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutraa6 wlc iqc//p(l 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. c( aqilp 6w//cThe 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 th* 9dwd:yimja6e Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated b9; kz .bkb l9*.sgeyjhy a distance d. The first charge is larger in magnitude than the seczbyhlbj 9;sek.kg*9 . ond charge.

  Sphere A carries a net charge and sphere B is neutral. Theyj+u e71xh *fapd5x.ar are placed near each other on an insulated table. Which statement best describ1+f .drhpe7a xj au5*xes the electrostatic force between them?

  Two charged objects attract each other with a certain - uvp*z e x76q (lh8fmc-4yxxqforce. If the charges on bo-xy-qv hz6xquflp(84 excm7* th objects are doubled with no change in separation, the force between them

  Two charges are separated byzc6jr 4kuf( 9o p t6ravb er0k3uwv/0 2fzw./n a distance d and exert mutual attractive forces of F on each other.0v4e kur.f0zpkb ra6 rnzjfw9w3v2c 6u/(/to 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 for)o bshwj:e 3m+ce F. What happens to the force between them if one charge is doubled, the other charge is tripls wbohm: 3j+)eed, 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 separatez,c)n 1xbtwg :d by a distance of 1.0 m. What happens to the magnit:,1 n)btz wxgcude 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 1.01(bgl:jw a/gxmv ((ye m. What happens to the magny/mv(xwag(1 bj gl(:eitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separatedug. e.htmlgk5:j 4ll+ by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved.4g. m:+5ekjg tllu lh 0.50 m closer to the proton?

  A point charge of +Q is placed at the center ofww8.fr zws4j; dmo.ew(h k c90 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 ;h 8(m4j9.cs f0ww wwoek.zrd. 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 placl f(*11u kwkwred 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 the center charge due to a third charge of +Q placed at one of the other vertices?urfwlk1kw 1(*

  Which of the following is not xgm mk0lqu0v6(-rtv 9a vector?

  At twice the distance from a point charge, the strength of the /grmwj+t6 z, oelectric field

  Is it possible to have a zero electric field value between4ufntm e5fh5o;sd b /7 a negative and positive charge along the line joining the two cot75 /;fh sbm4fdn u5eharges?

  Is it possible to have a zer 1gma ,z:njwn(o electric field value between two positive charges along the line joining the two charges:a ( mgznnjw1,?

  Electric field lines near3 hyf f++i kn)83luafv psitive point charges

  The electric field showhy 5 u*-pqy ,,+j5rbaui4uxexkl*9dxn

  Can electric field lines intersejm xd0, ya;;agzqm;v tdxh) (.ct in free space?

  A solid block of metal in electroszi,( f15ncovn xvgp4r 5dn(a rcd :j7b*9v ob8tatic equilibrium is placed in a uniform electric field. Give a statex5nrn( pd(5 g :i b, dcvzv1v8 cobr*4a97fojnment concerning the electric field in the block's interior.

  If a solid metal sphere and a hollo 8j9v iz6d, 7bkxrja.lw metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surfjik7xldr 6.8j,a9 vbzace is

  A cubic block of aluminum rests on a wooden table in a region where a uniform z41emll- 4iwp p/noatp2foe0g)v ;1j electrii0mejf1e)pza-1otl; g4 olp4 pn2/w vc field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrost)edcc g hku;mhw9z1; .atic equilibrium near an electric charge

  A positive point char n:td0yz)yluyz75p3z s92 ggm ge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow9yzt3: 2z7suyl g0dyp)n mg 5z sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in staticv5+o 3n9hl fjwenl7;q equilibrium.

State Gauss's law.

  The charge carried by one electron i :1+s sf0ro cyaij.xf2s $e = -1.6 \times 10^{-19} \; C$. 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 more protonql-:bt/ w wm :gk;nt8gs than electrons does this piece omq wgtkn -g:w8lt/;:bf plastic have?

  What is the charge on 1 kla4witv-rcop/ 4s *-fg of protons?

  An atomic nucleus has a chan::;/oijc wbyrge 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 c2 (utozx5w o y5xkh91cm, have charge values of 2.0 and -4.0 mC, respectivel1(9 zkxoho xt2 5uwcy5y. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a s .,-46b )c si84jj mo,konjiri q6arwvecond charge, and the force between them is 1.0 N. What is the magnitude of the secondj j-nb6r i i8s.c oqa6ij,r,kv4wo)4 m charge?

  Two 1.0-C charges have a force between them of 1.0 N. How fark+gj0l n*,/d zenat:l apart are they?

  The force between a n(lp)-w ) 7 tet u7z-kwk5m9baeig6d b$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, init c)ec7l zw1c(nially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between1we ) 7cz(cncl them?

  Three identical point charges of 2.0 mC are placed on the x-axis. This( :y9cl47m5l qch yte first charge is at the origin, the second to the right at x = 50 cm, and the third is at t:9c h(q5yyl4l7mic s 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 ml9ts(ed 9gxj5 s fsngnb6q 2;:C 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 electrostatic force which acts on the charge at the origins tg(j6:5b9nl2ge sq sx;9df n?

  Three point charges are located at the following positions: Q-nblb0d b1w+csm, 1nh1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 s ld+,mbn 01 ncb-b1hwmC at x = 0; Q3 = -5.00 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 square, and a s03lc+ng,ma q jecond 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 tq na+jl,3g0 cmhe 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 (0, 0.10 9u peb np4e03xy73 nawm); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nCn437ep 03pwx byau 9ne charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is aebomct1cps*6tk xn/jp0q8. . ). o oagt (0, 0). What is the direction of the net force on the 5.0 nC charo6os atxtb./n1 c.ok. qp0) g c*8empjge?

  Three identical charges of+v bnps)6u+yfgnzv2- 3.0 mC are placed at the vertices of an equilateral triangle vs+vu+n fzyg-)n26 pbwhich 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 +4Q, which are sepu(tc lz r,-6eparated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q supue(-rc z,tl6 ch that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +98im6d ,bvg qfe20z4 zo,wet i;.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed seeodw 2zt6v8 qmi 4i,,zg 0bf;o the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x =/2h xcl0z9 m tcuva-pft-)v)d 2a. Where can a third positive charge +q be placed so that the foh u)2flctvmdx/0 tzp-c)av9 -rce on it is zero?

  A copper penny has a mass of ;0pc)ccuz(ste.s ;no3.0 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 thhr (a;pwl/wa o;i,dm)e attraction of a fixed;ia;/h awwo,p(d)r ml proton some 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 threadsn11m cz(io, q s/vb1ts which arsnz(,111qcvo b i/t sme 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 o5at )w 5 5vm0t,oifmlsf the electric fiel, t0w5amits)ol 5v f5md at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the):+j/hz . sq1 zoptqyvzbbo,n) t6 wc1in6* hj electric field at a distance of 1.50 m f onch+z:*q tj)v w)sb1tz1np yjqozb/ ,6.h6irom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the ;j(jbg0 iea e/magnitude of the electric field at the locationaje/ge(j0 b ;i of the test charge?

  A 5.0-C charge is 10 m from a smaltom (*v+gvd ;tl test charge. What is the direction of the electr(t*mv+ g d;tvoic field?

  A 5.0-C charge is 10 m from a small test ccqkd ),,mo tni)p34z ,8rmbt0 jmic:eharge. What is the magnitude of the fi)8d3cm zite,j , tporqkn:b m 0c),m4orce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C bw5pjy6 k+pi1.*q-x ov4 s dpeand are separated by a distance of 4.0 m. What is the electric field at a poi opbkpyepwj+6. 4 - 15xsidqv*nt midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter tvau,c0t ;u y+stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm marva;0uyc tt +u,k?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 m1uvwv (2f ;ngwdx3y3lsiy.7 eC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric fie v1.vd wux;y gw3(e ni3y7f2slld zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. Wh qxzwt/n85ztytdh5 +9pc 7mb*at is the magnitude o/ytw+cbdxtm5 5 zq*t89p7nzhf the electric field at the point midway between them?

  Three 3.0 mC charges ar7:)e 3j qq;joukpk o1be at the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. pe j 3;j)bo7kqu1 k:qoFind the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are plae8 /v3zfrh yo9ced at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at 3/rzf h9ey8vo (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 o5)sig0-1 2mwojpxn8 ;0iucyppos 3g bn a charge of 5.0 mC when it is placed in a uniform electric fipg8j;s5ib0o nwiocpy1 gxms0 - u)3p2eld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC ha h tpa+w7.:gqus 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 placedu657 ef ugl6hg.sgp .v in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it p5u vf.u6 gg7l 6hg.seto be suspended?

  A foam ball of mass 0.150zs7it)5(9mpcq;g pbg g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric ficgg )p(t s qp9m5i;b7zeld?

  A metal sphere of radius 10 cm carries a c g +or5zeyc;s .ql w)y-chgs5)harge of +2.0 mC. What is the magnitude of thz)5c yl ersw5 gso;h qc-g+y.)e 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 *dspz,7 bo a :hja6*axthe electric field 6.0 cm fro:px7ho6zbsjaa *a *,dm the center of the sphere?