State the law of conservation of elelgusrzx m 3/y+w g5 5*k7.iy.qj fftm+ctric charge.

  Is it possible for two negative char4 6wg xr*fbo1lges to attract each other?

  Is it possible for a positive and a negative charge to attn ikn pb 55a:dz+8-6io8bovs /4me6wprvsp1tract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rveicix9;42 32 +k4dv fonexkdod acquires ai ekn xo9vddv+4 e4kx;if 232c positive charge and the silk

  A proton carries a

  The model of the atom show5pik:lr or,zyfv1+u-)h :sucg y;ix . 3rjy3ss a

  A neutral atom alway.*gv lam92rkll/ t h/c+ x6mpks has

  An atom has more ele7p.rp k 0ctb;;lz,eh( ran8we ctrons than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are referrrj 6js )3vzhro *n(ag:ed to a ( :hn)*jzvj6o grar3ss

  Materials in which the electrons are bounpu 17 t0x7a;5oxtd2luya 6 licd very loosely to the nuclei and can move about freely within the material are referred to dul0otu75ya xx actpi1l 72;6as

  A negatively charged rod is brought near oq gimb7il6uaq-8 r9c;ne end of an uncharged metal bar. The en6b9gu m8a ;iqqic7lr- d of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net gh7w1k: ,;p dr4p;icoruuru3positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly toucrw:g;dcrr3,uo u 174; pikuhphed with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod x bp1 6u)3c53wu- sr*)i dzl7gai bbdpcharge an electroscope positively?

  An originally neutral electroscope is briefly touched with a pojlt40;1lq py ;pvmbv.0 xg+hbsitively charged glass rod. ;jg bqvvt 0 m+01p.l;yplxhb4 The electroscope

  An originally neutral electroscope is3 /msy o(rk9g he(o2rf grounded briefly while a positively charged glassy o 9k(m/gf3oh(s2e rr rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. T v;ze 8tkb7by 8y6ncg:mw 7co5hen a negative object is brought near the electroscope, but does not touch it. What happens to the leavegbeb;c 5w t7vo m:7n ck688yyzs?

  A large negatively charged object is placed on an insulated table. A neu kg9nc)b5/l+ uje r bm.1hxj3jx4 -r.y-dbfjgtral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path f-j4bg. j3rbnx +j/l-1rguf xk9). 5ebyj cdhmollowed 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 oo oe2 ws/-;9h0+loqccug k/amant.2 j+ko; hvf the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Thb r;s )g.fy,4 yngo/7a evfxap8jxu /*e first charge is larger in m fj y/ x8 ayvufng*)/gxa b;7os4per.,agnitude than the second charge.

  Sphere A carries a netwsj*x0mzsc;a vm *6jnw v*/s4 charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electr **wa4/v*x wms;sjnjc60vmz sostatic force between them?

  Two charged objects attract each othe,hkpww d6*vo i fx1:7cr with a certain force. If the charges on both objects are doubled with no change in separation, the force between thdww6o1v7c xk:p , fh*iem

  Two charges are separated by a distance d and exert mutual attr9i) h8m4zprxyactive forces of F on each other. If the charges are separated by a distance of d/3, what 8 )zrm9hi4xy pare the new mutual forces?

  Two charged objects attract each other withscy cidys*00t .u2b xb:a++rykeb39 g a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance betws9*t3aybyg2yi x.r +0+:bb s0cdueckeen their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated m(g;hd :3hmsb 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 the first h b(m 3mhg:ds;electron?

  An electron and a proton are separated by a distance of 1.0 m. What haph8fg;z,hd 13 z/3fvj vblygk(pens to the magnitude of the force on the firstkvj, (/z 3 h3f 8gz;glvhdb1yf electron if a second electron is placed next to the proton?

  An electron and a pro7ysm w4a cj0v rv0i33 mss.5uj 8r8oybton are separated by a distance of 1.0 m. What happens to the size of the u73wsmrv.5 s4mos08 jyv j8iy03rb acforce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q i ,r0-otvw,fiyu sa5yd+ol apa(;5g3gs placed 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, 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 oy(or ia5t3 pgua5vdl-+,s agw0yf,;of the square?

  A point charge of +Q is placed at the ceuk rff:5x a l9x3m.5jontroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.3 x 5uk9xjf5.m:lrfao 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 vecu scy tej20wex1 z6;f1tor?

  At twice the distanced s- n0rw;2k1 cfu(x brx4a1rl from a point charge, the strength of the electric field

  Is it possible to have a zero electric field value betweennq o13 n,q2+rmvox-al a negative and positive charge along the line joioa q1r l3+ m,o-nqvnx2ning the two charges?

  Is it possible to have a zero electric field value between twz9zb5y hh n he cr /l37s9lm66xp,an0bo positive charges along the line joining the th90x z, n6z6n/sp yh975b hcarlle3bm wo charges?

  Electric field lines near psitive po2nrrhpk:k m;si,a +)wint charges

  The electric field showfh9tgd1 4g. h8*8tfjaym )oj 1c q:dwnn

  Can electric field lines int l0s(1ggsckh7ersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elev:e1oyf 80szv ctric field. Give a statement concerning the ee8:vy 0 zsov1flectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eack 26jdop0-z t39mv,y -in /:yi quksidh given the same charge, the electric field (E) midway between the center9y-0d3,2isyd:o/knuvki mpz i6 q tj- and the surface is

  A cubic block of aluminum rests on a wooden table9 (fq)h6rpcsew(7ztt in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the be q6t rhc7(st(pwz) f9lock's top surface?

  If a conductor is in electrostatic equilibrium near an electrica*,q)4y ,wy(x : kz db(urrxpa charge

  A positive point charge is enclosed opw9midwd0ean;9,2k in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly nkeo,2wd iw 9a;0mp9d above the hollow sphere has

State three properties of conductors in static equilie/oda x3ijz 60brium.

State Gauss's law.

  The charge carried by onvhf te*,qlm45; dhtk0e 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 b:x yfgmvko/ahfr 191e hxm689 c7r ;m4mnhy-many more protons than electbky6h9o1v/f ehr79x 4mcynm m8fxmg rah; 1:-rons does this piece of plastic have?

  What is the charge on 1 dfo6fh5 e7k b1r wujr7d4.; zqkg of protons?

  An atomic nucleus has a cz5l:a ,/d18dcxbx aixharge 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 -4.0 mC, g5(w o1ais;rlrespectively. What is the magnitude of the electric force between thei w1s5gol;ra(m?

  A 1.0-C charge is 15 m from a second charge, and the)p)qc.3sfumz force between them is 1.0 N. What is the magnitude of the second cham3scq))z.p fu rge?

  Two 1.0-C charges have a force between them of 1.0 N. How far4dlc7kfu14q ubz 1p2n apart are they?

  The force between a f1 w om-om1y3teyp*df f8p+h9$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 20xr lmagea5:) .0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what 0xaa5em :)r lgis the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The fihs3zd(fi3w1 bba hl4/sf y1:l rst 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 the1h3fa fy (w1/zs i4lbhbs3 ld: electrostatic force which acts on the charge at the origin?

  Three point charges are pl 23eqs9huzv6mo3 g 4haaced 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. What a43vs9zao6u 3em qhgh2re the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are locaty*e1z y ofux:uc/6 *sr.vxzu2ed at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0;f : yv .6*uz *uuzr1scxe2/oxy 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 cente-hrce. 78*elo(,fwp7w )xzh r.e m usrr of a square, and a second point charge of -Q is placed at the upper-lefel .cerohex * wm,hp7fs 7.-wu)8r(zrt 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 (0, 0.10eg5.gp)tqsw 2) d slv/r/:ipg m); Q3 = 5.0 nC is at (0, 0). What isdig2 st).wrp:5/g gpe/ sq lv) the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0k-/cgvv c - lip6+ldq+); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). qc+ p-cv6/i+gl-kvld What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the v5bkva 8w w2/htgg5nqi;c, rohg *. (rjertices of an equilateral triangle which measures 30 cm/vh *aq.,w5 (g8bg no5wkirtj2; grch 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 separat23k3; lrz x7fgy3mw pgvm v ;pmcr2;z4ed by 3.0 m. At what point, on a line between the two charges, would it vpvz pgwgmk2z4 f2 y3;x3m 7c;l ;3rmrbe 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 +9.00(zc.gvj85yd- ge qeyfuc :)h -C charge is at x = 4.0 m. Where on the x-axis cang8.cyec:gv zfy5-)ehq0d uj ( 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. Where canf s3hxv y,8l9,fnaq8 v a third positive charge +q be placed so that the forfv a8 hfxlq3,s9,n8yv ce on it is zero?

  A copper penny has a massxw *si+pv+x4y;u, zfw0dyud+ of 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 ath*;fn gq30qtxtraction of a fixed proton some distance above in*fq3t0;hqxg t. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common 1 sanvaq2/, mcbz 9hgh -b6fad54u zd1point by nonconducting threads which are 30 cm long. 9,a2bzs/cbhfda 45 ga6z mdunh 1v-1qBoth 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. /3fnfij.n9k n What is the magnitude of the electric fieldinfn3./nfk9 j at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a ,8 ko-ns)1vhli*)up i rtwh6qb f ,n 0kn0hh0odistance of 1.50 m fr, vs0h)iq luw0 b,nh or ntk*- fnhp18ih06k)oom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. xdr d1* hrh8h2qp7z/q +qec5m What is the magnitude of the electric field at the locatioxdqq+ezq7ph dr*h2 mc8h5 /r1n of the test charge?

  A 5.0-C charge is 10 m8;il ihj037k i ;zfhze from a small test charge. What is the direction of the electric fie7zjhhz8e 0i fi;3ki ;lld?

  A 5.0-C charge is 10 m from a small test c3 u(kvral*8i put (0 tcvhq:6tharge. What is the magnitude of the force experienced ba *u8ltrc ( 3h6(qitv0u :ktvpy a 1.0 nC charge placed at the location of the test charge?

  Two point charges each haw)dr) 5 (gbj k 9y68ytqwou+orve a value 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 charges?wr89gdq t6 )o5u)j kyr(+yb ow

  A 5.0-mC charge is placed at the 0 cm mark of a mq5kr 5abn(ujb/-c+bdeter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 305nb d/ar-5bu+j(q kbc cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC ch8pm ;kt 9mrjd/arge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric fi;jm /9d pmkt8reld zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x ) 70vd8oki mfgj 8;shv= 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between th7i k8gov fdj )8s;vmh0em?

  Three 3.0 mC charges are at the three corners of a sq 9yf 8svzzoc3y1+wec/ uare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the centerveowc 9y sc13yfz+/z8 of the square.

  Consider a square which is 1.0 m on a sidec wcc11x3r/q )js;y de. Charges are placed at the corners of the square as follows: +4.0 mC aj)qe3 cd1yrs 1cc;w/ xt (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 lw-4hj, baz (q. 87wlh cuxw;yon a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric fielbcz-.7 4;wa, ( lhw ul8hjqwyxd?

  A particle with a charge o8r,wffkgba5fl-7 h3lrir 77t f 4.0 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 mass 0.120 g g- uk9d(q 6lfi,x etq+0jx;dkhwt2zq0 g3r.m is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for itrt ;xki l+ ,z2w. fjedgg9xt0hkmq36uq -0(dq to be suspended?

  A foam ball of mass 0.150 g carries a k,yn g e1p.qab5+.p oggf; /hncharge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. Wha /fn+bgpo; gagp ynh q1.k5e.,t are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 s 4u -(k nk)e6d+z g oj5iy9s2rc*dxgkmC. What is the magnitude of the electric field 5.0 cm from the s4jdoykg rdiek92cksx5 ) (g6 *z+ uns-phere's surface?

  A metal sphere of radius 2.0 cm carriay1kpbc :a9bq7kh9g + es a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the spherea9gbq9hbk ak y :c17p+?