State the law of conservation9qxnbnr)q )/ f of electric charge.

  Is it possible for two negative charges to attract eytgj1 ;f7f -lmi0 ow5p0bf9 urach other?

  Is it possible for a positive and a negative charge to attract7/x art3hw9w z each other?

  A glass rod is rubbed with a piece of silk. During the phqv -r( x+g(dfrhswsu4jh)9huk+6y ,rocess the glass rod acquireq)4(-k u ghsf h+wvhj sh9dr,x y(6+rus a positive charge and the silk

  A proton carries a

  The model of the atom sxpjhbg841-lv a r6xx s )eic,;hows a

  A neutral atom always ha ir2o+ tn)ltjozd6n 27s

  An atom has more elecsh- tz (wwp5k1m esd3+trons than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are ref+ p qu0ja n7nd)q1h ilxnhoyz,cb-,0h)w22qferre,pz0 i n2nj- q0hhw))qhxanby+1f lo2 udqc7,d to as

  Materials in which the electrons are bound very loosely to thepiwf+2mx(e h)t(dy ;+tjma/e nuclei and can move about freely within tij;(2(a t++tpeyw) m exmfd/ hhe material are referred to as

  A negatively charged rod is brought near ou,t-o8ulra q ;84x9qvwes 1 xr y,oyt1ne end of an uncharged metal bar. The end oro 89 -e,rtavs1 u;tx4, qyyuoqx1w 8lf the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Thi539 vtyo(frc7oy-- / szvnb dey are placed near each other on an insulated table. Sphere B is briefly touched with a wire tha9tnbfv(dy 3svc- 7o5o/r- zyi t is grounded. Which statement is correct?

  How can a negatively charged rod charg);4 yy+a fobi7vnaxq-e an electroscope positively?

  An originally neutral electroscope is briefly toyw4ou dzvj) j562n 3ftuched with a positively charged glass rod. The)z36yf52dt4vjwuo nj electroscope

  An originally neutral electroscope is grounded briefly while a posi76jl 6z s2aetjvgglp,8hc 96tkzrp(/tively charged glass rod is held near it. Afte/pg2hsz 9zrt k7(la 6jgtcv8jl,6 ep6r the glass rod is removed, the electroscope

  A positive object touche-1cc1y qf ad2ys a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What ha1-af qy2ycd c1ppens to the leaves?

  A large negatively charged object s8:oh:c.nr u 6u 0rud7 bp)fuois placed on an insulated table. A neutral 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 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 charuh bdr8up 7:)06fu: oc.u osnrge on each ball?

  Charge is

  What are the units of the Coulomb constant (gyiw8)htf bx 4t) k:q$k$, which appears in Coulomb's law?

  Two charged objects are sepaw sw:hu +bcgk8vlo( cudu-p ka) e0 )n/6hhw;:rated by a distance d. The first charge is larger in magl6h0wguac(/ hh ;wbo -+nwk 8sc:uekd:u) vp )nitude than the second charge.

  Sphere A carries a net charge anumyon)irn-kdp3)aj9: k nr 5/d sphere B is neutral. They are placed near each other on an insulated table. Winp3 u y 5 d/r:nr)on-mj)kk9ahich statement best describes the electrostatic force between them?

  Two charged objects attrac vuh:v bb: plp-97vv8am2qqi *t each other with a certain force. If the charges on both objects are doubled with no change in :p*2qv9va7bivum 8 q:-hb pvlseparation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces ofcszr *)i-i8f:xn8 vhm+hpgh. F on each other. If th):zg h xn8 f.h*c-8i hmpvi+rse charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other wwrsy w877l8ukova /d m)c-1ikith a 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 is reduced to one-fourth itkc7w8)lwkd m7-i1yar8 ov s/u s original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 mopj4e8p h;ji7el--m6dda /f9- pasdb . What happens to the magnitude of the force on the proton if a second electron is placed next to the first eleh6-4 ajf/ 9s7e dp ;do-d mapjp8e-bilctron?

  An electron and a proton are separated by a distance of 1.0 m. What happens to i8f*tqx(.qls5ro 5 nx7mv*e, 8odqwhthe magnitude of the force on thm dnx87,q5lh.5*r q8qw *t(sx iofvoee 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. xx-,zvw (hro8What happens to the size of the force on the pr,v -xwzxo(h8r oton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the;*sdvprg(rtn6w pn ;) 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 (;pwtr rn 6d nv);*sgpcharge at the center of the square?

  A point charge of +Q is placedh1 yx3 pkls87f:c yw0k 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 kcklh1s7yy0 f3:8pxw 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 veceg1mr 1f4/srp.sp)m2 jh,oq mtor?

  At twice the distance from a point charge, the strength of thenybt sl. )qo3( electric field

  Is it possible to have a zero electric field value between a negative and (-pl w1;d y re20kxjv7nqpl3,otrou.positive charge alon1 p 0r7ujnt3 vo. yk(eqoxpwllr-2d;,g the line joining the two charges?

  Is it possible to have n mmv9zn ;1/yoa zero electric field value between two positive charges along the line joining the tn9;v /myz omn1wo charges?

  Electric field lines near psitive po mpsb+j ,o98ywd7 mw3sint charges

  The electric field sqe +zupq-nj17 :+ibtm hown

  Can electric field lines intersecr 12iao /9n*c ppsh/vmt in free space?

  A solid block of metal in electrostatic equilibrium is placw0 cp aajv90q.2i ju,wed in a uniform electric field. Give a statement concerning the electric field in the block's i.0aciuvw 02 ,pj wqj9anterior.

  If a solid metal sphere and a h6s7 . dyv*lenoollow metal sphere of equal diameters are each given theyl7. *onsdv6 e same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifor6hq+cvmb 1nf/e4e ei0 m electric field is directed straight upward. Wh v b0iee1+46qe/hmfn cat can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an ez,mwd2ou+ 1 onlectric charge

  A positive point charge ixm5+j4odvc 9mpjd9s7-d a/ kos enclosed in a hollow metallic sphere that is grounded. As compared to th d/jam9p-jod+x9svc7o 54dm ke case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equinhnmyvc3 s dtb+/405 xlibrium.

State Gauss's law.

  The charge carried byz14+j l8wgs+6jg: e ywuk 7/vf vmw0pn 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 +2.00 mC. How manygv qe(3dzfsz:t85ob 7 more protons than electrons does this piece3b 5go(tzsf :8z7vqde of plastic have?

  What is the charge on3 (g*4jyv(ctbz g7)w- mjdstn 1 kg of protons?

  An atomic nucleus has a ch5g6 yuhewr9/dq * 1+rt/pw/ac v essg.arge 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, mqhsdb:j;4( x respectively. What is the magnitude of the electric force betws; q(x4:bm jdheen them?

  A 1.0-C charge is 15 m froibvpv.d:ior2*mh;2f m a second charge, and the force between them is 1.0 N. What2.dvh 2*i o;vrpf bmi: is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Homtwi . 22y;nqb/,r aoaw far apart are they?

  The force between a )pwsyd p( /mqs:*8hs q$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, init 1 i( yqnqzob +q(sh1qivvj/ pd3d0:t5ially 2.0 cm apart, experience a 1.0-N force. If they are moved to a ne q( 31vqqyh bpoiq/i5t(1v +dzsdj n:0w 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 first cha/quk 6us z27s*mk mf4arge is at the origin, the second to the right at x = 50 cm, and the third is2 uzqsua74m 6sk *m/kf 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 on tha8 3i8c6axbg we x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C t w38 c8bi6agaxo 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 origin?

  Three point charges are located at the ebllq(5k 0 f(mtyh/+r 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 f0r/+l hqbe tymkf( l(5orce on the 3.00-mC charge?

  A point charge of +Q is placed at the ceno i/ t;g1gwrk44tj5anter of a square, 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 force that acts on the center chargji/4 nwg1 agrk5t4t;oe 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, 0.10l z;1uwrbefx:/. bge qm4(g s6 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net fome(zgu;4bsg .xb/el:fq1r 6wrce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 .(*( gpjopy v ke7qym9nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on thk p *7(qvjpemy .9(yoge 5.0 nC charge?

  Three identical charges of 3.0 mC are placuk gbd1 ;*wx3sts /+nrdtxf 46ed 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 one+ tnxg4d ;3fr bw/16sd* tsxku of the charges?

  Consider point charges of +Q and +4Q, which ail8;/nq6f k rsre separated by 3.0 m. At what point, on a line between the two charges, w6 /s8qn;lir fkould it be 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 xq mm5el*l4(u rk tn1ybf x6.m1 = 4.0 m. Where on the x-axis can.qyme (flr5m* t1xnl 16mubk4 a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placel 0*kj.xmah-j7/teuzto,0 aad at x = 2a. Where can a third positive charge +q be placed so that the force on 0 l*j tja7t0-.u ekoahzm xa/,it is zero?

  A copper penny has aicl813kvuz, 3r*; *p pvt/i8so2ehw urh 4b mf mass 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 attraction of a ph:ed9dtqs 0cv .dr4 *fixed proton some distance above it. H:d hq0pse9d * dtcr4v.ow far above the electron is the proton?

  Two 0.20-g metal spheres are hung froo w1 liiic1*qd:ag-6qm a common point by nonconducting threads which are 30 cm i- l gdoa*c:w6q1iq1 ilong. 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 on leu /ie)ph6uzf 9dp;2bl)1of the electric field at a distance of ulhoe /; l2e n)pudb6 fi19p)z1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distanc8z /0.3ribuxa flvcb- e of 1.50 f03zxlvi8 / rua c-bb.m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thevo0 ok k.um11e electric field at t01 .vukomko 1ehe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. (ox+eg.l s t5cWhat is the direction of the elet xg+.lsoe c(5ctric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitud)w ve/*zljb 3pe of the f) l/zjvep*wb 3orce 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 andn:hcf06pq0*i9a ymxhqm n bb 59 nr1a, are separated by a distance of 4.0 m. What is the electrhh q0a01c xfn ,bqpy 95nmai6bn:* 9mric field at a point midway between the two charges?

  A 5.0-mC charge is p7:g4r5rk oe :atqa9+( bzcxeelaced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is ta( qze:ga9 ec7 :tr4x5oekrb+he electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a m eb/rgk .t5sx1eter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining k5gb1/ r.xestthe two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x =vztp v5,zhij;v1+ styc )n j-7 0.20 m. What is the magnit1jnttzp; +jv75 zc,yv)h vis -ude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of1j/,uputco .z side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electricotzu.p, /jc1u field at the center of the square.

  Consider a square which is 1.0 m on a side.jr3lyb) f76 d7cm-bzpd0dr;j 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 (0, 1). What is the magnitude of the electric field at the square's cedmb7 zjbdf; 0lcrp6r dy7- 3)jnter?

  A force of 10 N acts on a charge of 5.0 mCl c4c) r1e q.p8c xmxx-(y-dou when it is placed in a uniform electric fiel4-oecm- cy p d(r8xqu1xl.c)x d. What is the magnitude of this electric field?

  A particle with a charg9fjx l10s lwh(e of 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 is placed in an electric field of 600cswe(d a 69ukkvjl::10 N/C pointing downwardj :we(9kv1a6k: slucd. What charge 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 yhp jh0c 0pa*5nC. The ball is placed inside a uniform ele50pja*p0 hy chctric field, and is suspended against 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-6n 8obz.mi .h 5h drmay25tqu. What is the magnitude of the electric field 5h 8-mrot2 .m.dzu 6i 5byhqna5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the el 74p;whdpbsrj/dj. jv qt 3)7fectric field 6.0 cm from the center of the 4djsjft7/q hwpbjr; p )v7d3. sphere?