State the law of conservation of elyb7 4 tm6sb+o yemc*d8ectric charge.

  Is it possible for twos; e (mya2og vlom3g7jv80ii4 negative charges to attract each other?

  Is it possible for a positive and a negative charge to a3r2myumuh 1; +*u ye(sq*shnwttract each other?

  A glass rod is rubbed with a piece of silk. During thek bknaupelur 0df4c 5bdavzswy *9/ * wr;1270 process the glass rod acquires a positive charge and the 2rfb uay dv09zk4ew us5*n7 brdc1wl*p0;a/ksilk

  A proton carries a

  The model of the atom/ :p 8j ng,mjl:2l8s0wl;s/fohhov xp shows a

  A neutral atom always lfnvm 4zze )4l.epy7 :has

  An atom has more elecl m ci2nac8-i1trons than protons. The atom is

  Materials in which the electrons are bound vedd +28 1djrzaj:x-),cej g3dgcemndbyb *i2 *ry tightly to the nuclei are referred to asygacjb-dx:e z drd8b2 )c gdd3jmn j*+*1e,i2

  Materials in which the electrons are bound very loosely to the nuclei ak 9 be9 2sgm v83)q znt-n*5lfprxx5find can move about freely within the matn5s z3r2x i8n q5m ftx- glkf9bp)*v9eerial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal i3a k zx,ze fk*:c5kd)bar. The end of the metal bar farthest from c)z kk,xe diza5k*3f:the charged rod will be charged

  Sphere A carries a net3o yaf 366luxx2 ui*zap8f p2i8ecez 9 positive charge, 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 gropa2c38pfoaxe9iu 8z yux 63 6fl2* iezunded. Which statement is correct?

  How can a negatively charg,p fb4 46vq6:r3j*nd6;dtnvn iqgjrted rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively charlmgep k:e);o ce8 r;l:ged glass rod. The em kgpr8lc ee;;o):l: electroscope

  An originally neutral electroscope is grounded briefly while a positively c(nkvicoi4nof t 5/y1ll9 20 ltbp-j3a harged glass rod is hlt/c-nl o2n 3jv b9pfi(o14 lak5y it0eld near it. After the glass rod is removed, the electroscope

  A positive object touches a ne pfm45u17yh1mgn1 u fvutral electroscope, and the leaves separate. Then a negative object is brought near the electu5g1 fn7mvu4mf ph1y1roscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insular 3twkmthr9- s z599xdted table. A neutral metallid9ksr59r-w x tz9h3mtc 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 final charge on each ball?

  Charge is

  What are the units of the Couvr5:q/)ehct sk:j kfya0 1v 6clomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first c77k1wude x v hbp++o2+poq 81c4cpssk harge is larger in magnitude than the seco cu+ 1osp17 c+vpx2pwdeq7b+ho skk84nd charge.

  Sphere A carries a n;2( m4 mlvnerm23 zi:/6g ak zmfxql9eet charge and sphere B is neutral. They are placed near each other on an insulated table. Which statfvn:9m zi(mqxa zk3le2/6g2rlmme;4ement best describes the electrostatic force between them?

  Two charged objects attract each othec./dkvwo q umb7c1 (kcu0c6y4 r with a certain force. If the charges on both objects are doubled with no chao04cc7y uu. d1cvc6k( bmwk/ qnge in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forc+e 2* xdzmpiicfy1k e;oz(o37vm+ i.kes of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forepom2 dyi+ *oev;c7(k1mi.fk xz3+z ices?

  Two charged objects attract esf- xsm -ry64edwjq8fl**y4yp;a yh .ach other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance bemdyy y.-* sl8f* 4xah4 e;fr6ys-qwjptween their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are sepi7sstm c7 +itvnp k/3 f,3ze*earated by a distance of 1.0 m. What happens to the magnitude of the force otm/s fvei+* et kzn3s3pc i7,7n the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distanc*+en mns*bv3ngk+wseftd: )-rgo 8 m- e of 1.0 m. What happens to the magnitude of the force on the first electron if a second electronnd o)*m:ng -ng* wfv etbr+s-+sm3ek 8 is placed next to the proton?

  An electron and a proton are separated by a d, czb di-xzz,b . 8f9ffg) t*bf2s8*bd)lndkpistance of 1.0 m. What happens to the size of the forcfxsbb. ,8dc l2df) izkzt8,d- f*bb) fzgn*9p e 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 yhe67o+*ujqj are. 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+u7*hy qjj e6o 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 the square?

  A point charge of +Q is placed at the centroid of af m okt;)fh7/dn 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 thh;k7o )f/tf mde other vertices?

  Which of the following i/:0knr 91c su1eshnwf tl;ub1s not a vector?

  At twice the distance from a point charge, the 1 dlys;jpmh,afq(qr/3 1 2of yd z)s4nstrength of the electric field

  Is it possible to have a zero electric field value between a negative :2d.frlro5j7b(0s tom cn i 8land positive charge atd b 5lfnl:cr80(i.s2 roomj7 long the line joining the two charges?

  Is it possible to have a zero electric field value between two tfd1)hzgf c75positive charges along the line jzf)1 cgt5dh7f oining the two charges?

  Electric field lines near psitive point charv*a 2(s f4)konp f.mflges

  The electric field sh2 wy,u2 cz a1wno.g; +laynmq+own

  Can electric field lines intersect ih lezgb52d jmp*.k90zdc .nx4n free space?

  A solid block of metal ii)khvbpe,66 u9 u* ph- ahp+ssn electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's i)ssh-e6+b6ihpu*u,a v k9phpnterior.

  If a solid metal sphere and a hollow meyvu-0 au,h.n6xhn- erq8xfg. tal sphere of equal diameters are each given the same charge, the electric field (uhye-avgh ,fu6.- n8xnr 0q x.E) midway between the center and the surface is

  A cubic block of aluminum redv5 u*. j:gaqgkd0.l-la bc l6sts on a wooden table in a region where a uniform electric field is directed straighl5dkga*g.: a qv6cldubj l-0.t upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nea;lbrz kc969tk r an electric charge

  A positive point charge is enclosed in a hollow metallic spherot6onbox) z. 6xh,tt*e that is grounded. As compared to the case without the hollow sphere, the electric field at a point direc,o )*t66xx.bz otnth otly above the hollow sphere has

State three properties of conductors in l1av,r 5- skbystatic equilibrium.

State Gauss's law.

  The charge carried by one electron is (e, 4q/zzkqlh $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net ch+dmt0 ce m66hoj .s*irarge of +2.00 mC. How many more protons than electri *6hc +r.moe jsd0mt6ons does this piece of plastic have?

  What is the charge on 1 kg of protons(i qbvp/bo+9r ?

  An atomic nucleus has m+z ubz .3.* :n/cthzbxex5dia 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, haver ,/ sn n lyl,mhx;4wr yrnb3uc.m1 s.,yt95bq charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric .t,rwyyuyr3 smb/ ll ;9,,b ncn h15.r4qms nxforce between them?

  A 1.0-C charge is 15 m from a second charge, and the force betwezeqvzx2 n1 (33d/f izy:qno -aen them is 1.0 N. What is the magnitude xvoa f/y 2q3ine-:z3nzdz (q1of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are thxh*/-lfismdg.y * - xmey?

  The force between a )ghn2u,eoe;+ am v 5al$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1) l owc3c/5ec+b;z b)fuhwzx1.0-N force. If they are moved to a new separation of 8.0 cf+;ccw u3o )wz eb)zl /xh51bcm, what is the electric force between them?

  Three identical point charges of 23nb hh (x/b: 9bpk0wg79,z0bnyr rjpl.0 mC are placed on the x-axis. The first charge is at the origin, the r09n:3l 97 ,kwxrhybgpj bn( zphbb 0/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 the origin?

  Three point charges are placed oki ts*.vma11cq8slpcg2c.1 t n 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 electrostatic force which ac1s1 .c2qm8t1v .pa t ls*cgkcits on the charge at the origin?

  Three point charges are located at the following positions: vbvh* ikhpy * g(x)ws4afj458Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. Whagv5fh 4ibsv )*pjx a8y(kw4 *ht is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a squareg sff 4,,2k,g: -a,b juq vo(x(yrjxac/mdlz4, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.-ds g gx4,/of, zu,(vjqc2r ( x:m,j akbl4fay0 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 whca3p) .dtt2= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force onptctw)h .23da 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 nC isz77prji+; p zr at (0, 0). What is the direczp;+r j7ipz7r tion of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at them)(:r *8 ezppji6 exeft44kfe vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one e)8*eepmz k(4pe6itr f x: jf4of the charges?

  Consider point charges or ty/xyttu gmxlay1wf 0/8vf31 e85(h f +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it b gltf3 hvfxur1/1tyt/e058m y (xwy 8ae 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 origin and a +9.0-C charge is at x = 4.0 4itr3dzrc fz,v .s p-*m. Where on the x-if3 ,zzt s d*4rrcpv.-axis 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 = 2a. Wh//.qxmi) t6zc7dy y:mcv ylr5ere can a third posi i:mzldy .6yqcx5m7/ y)rc/t vtive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. w 3pf(qm9rpekic)*wqwm02 7iA 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 attracti:hocae40 e;o hq22dp oon of a fixed protonoq:p0aco 2 o4d;2hehe some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung fromi4* 1oga donab3pa, +b a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart nd3 p ga*i,a4+1abobountil the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a gwl +03q1fqwk9-jj*orz eko8 charge of +40e. What is the magnitude of the electric field at a distance o*ojqkwwf8o3g z 90j-rq1e l+kf 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dista+xm t1)chsu c jz5bvx+4r.(jznce of 1.50 m froc sh(bz+ x.1m)zuc rx5+jvjt4m a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test chargeeyn/nq -l2-7zr3g8 qh)fl j uu. What is the magnitude of the electric field at the location of the test ch/yul j -nzf8-3)rnqgl 7uh2 qearge?

  A 5.0-C charge is 10 m from a small test cg8qaz3t 8m6 qdharge. What is the direction of the electric fi3 m8zda gtq86qeld?

  A 5.0-C charge is 10 w fxcae0dm0f ,z(5 )xjm from a small test charge. What is the magnitude of the force experienced by a 1.00xmw 0xe d)f,j5cfz(a nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a disx)w4,pldwku21 ) veqi z35d0iw0 h jumtance of 4.0 m. What is the electric field at a point midw 04 kqujp0l5 )hde)2xv,uw1w dmiz i3way between the two charges?

  A 5.0-mC charge is placed at the 0 cm maw d(i pw..e(2qy-pbc*sdu:lt rk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fielcy(t2. :wwpe-i.sqplu (b d *dd at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meten9ihz0xwi 9 b6r stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a nh x9iz0i69wb line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC.x :ghenot5+e7rb 1j8;cgfy f qr;4hq are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between t e7:cftjy .r+xb5hghroe g18 qfq;;n4 hem?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. 8ntvz .1twxj( The last corner is occupied by a -3.0 mC charge. jwx 8v.(tn z1t Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a sixj:f9h 6gn) +,aokg*a8m3icapon j 7zde. 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)a,g ak+x:a 7fcnogmo69 n8i*hjzp j-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 placed in a uniform ele/ kae4g8l8lmr/ lhkp 8ctric field. What i kr ae8m8/pll4lk/h8g s the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a ma,2182jzfw xctzi ukm )t ccc.;ss 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 in an electric field ofo:x3be98qdg abvj 4p+ 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspend bbp39: q4edov g8aj+xed?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Tjy s,gry8loenj we;jzp(87 1+he ball is placed inside a uniform electric field, and is suspended aj (es 7jzn l8;wpyj y+e1o,rg8gainst the force of gravity. 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 eb )msjcq8q 56the magnitude of the electric field 5.0 cm from the sphere'sbc5eqqj 68sm) surface?

  A metal sphere of radius 2.0 cm carries a chg rtng4 +5o/hahcbt(ma+1u)carge of 3.0 mC. What is the electric field 6.0 cm from the center of +ug(aom)51t cab cg r4n+/hh tthe sphere?