State the law of conservatsg pkzdxsqqjwez87dr,j7.5w 0 7d) :sion of electric charge.

  Is it possible for two negative charges to attract)zqj 6*g9i0uegd bs8b each other?

  Is it possible for a positive and a negative charge to attract each ol el;(owqr:ly ;k74y7* n ljwsther?

  A glass rod is rubbed withukcsu sc,)6/e+k) 9wj/pdtqp a piece of silk. During the process the glass rod acquires a puw)set),pqj9k ks6+ ccud/p /ositive charge and the silk

  A proton carries a

  The model of the atom sq6 kbtkd:n 8.khows a

  A neutral atom always has:kz1, hgvd l;x

  An atom has more electrons than protons. The a(8i.jq w1ao4rq/ sl tmc3e2v jtom is

  Materials in which the electrons are bo,ck4m:i dtu(d5uauzzfc : 5o7und very tightly to the nuclei are referredu:aouzdui mcc,d : (f755z 4kt to as

  Materials in which the electrons are bound very loosely to the nuclei and z87wopz3v8ah can move about freely within the material are referred to pwh38 vz8o az7as

  A negatively charged rod is brought near one end0i/fvxkxy6 b*xmk* ee5dtt 30 of an uncharged metal bar. The end of the metal bar farthest from the charged ro5km0tb* xk6ye / deti fv*x30xd will be charged

  Sphere A carries a net positive ch w4+ljdsmp;ley :x,q n*q66koarge, 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 correct?;wp oes*,mq:jyl +64xd6q nlk

  How can a negatively charged rod charge an electroscope/ sojg r3wk)i(cwt6 ha9hdu.* positively?

  An originally neutral electroscope is briefly touched with a positively ch sdwbqi/p+ 7 4po:q8zwarged glass rod. The electd :s7+wq8/zw o ipp4bqroscope

  An originally neutral electroscope is grd7*q,f 8-c*pxxq cpix )-yet kounded briefly while a positively charged glass rod is held near it. After the gly-*x8*ei) c p-, px7kftxdqq cass rod is removed, the electroscope

  A positive object touches5wi9djz ii7:rdc 5/r f a neutral electroscope, and the leaves separate. Then a negative object is broughtz i75w5c dii/9jfr:dr 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 neutral b z9 9iow wzz,+ ;fr(c9.q qdwol0vz;cmetallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followcq+fwd9qoz,l ;wi z9z; z.bvcr9(0wo ed 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 th58u -* b(puuv1e*s n mhg)kdrwe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larghn /o5r ;u mcl,nhn1.( lg)0glq gp6xber in magnitude than the senhogg0cn)b65lm.l ;uh /lx(n 1q r pg,cond charge.

  Sphere A carries a net charge and sphere B isji 2 m 4y(3l3ecdtbr1i neutral. They are placed near each other on an insulated table. Which statement best describes tdi2yr1(miet 4c 3ljb3he electrostatic force between them?

  Two charged objects attract each other with a certain force.eshkc,1ey 7 zj m:lk -6cbos4+ If the charges on both objects are doubled with no c:4klecse,myo+h71 b k-js6z change in separation, the force between them

  Two charges are separated byqo b:fj46fh yf-oq:cz96*hr w a distance d and exert mutual attractive forces of F on each other. If the charges are separatebf-h:zqyo jhf w6cf4r9 o:*6qd by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens (7wg6ok kutkl* e65hd to the force between them if one charge is doubled, the other charge is tripled, and the separation lo6kd hk eg( u7w*t5k6distance 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 mbs e8,0lwp sk0o mojc ,)rc 7lo,q*gp;. What happens to the magnitude of the force on the proton if a ss ;7 0lkg, ,o0cmolr)e*o 8c sbjwq,ppecond electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. rh18* chnexx 7jz2m9 )jhq8e e What happens to the magnitude of the forc hq *r88c7 xjn2 19ehzj)mhxeee on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a die v.z1 w(cy6gbydvw 9m3+ y;whstance of 1.0 m. What happens to the size of yvhcydw ewy;3 gz6 vw1mb(.+9 the force 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 square. When a second point 6d 8:onid9jco(h 6 qhy-te0qwcharge 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 6otow y dc(e:0nhi-jqd96 qh8positive 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 aa; -e:8svqqtet 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:-at 8e; eqsqv of the other vertices?

  Which of the following77lrrg8 k g+;lwdt,kp is not a vector?

  At twice the distance from 4ad pg)u,p)jdvc d9. ca point charge, the strength of the electric field

  Is it possible to have a zero electric field l :v hhuck+96dvalue between a negative and positivkvlhud 6h9:+c e charge along the line joining the two charges?

  Is it possible to have a zero electric field valuej3*qs*pit q2 c between two positive charges along the line3*qp*j 2i stcq joining the two charges?

  Electric field lines near psitive poin*ntx.x *rr w)(d.zcqs++a f qbt charges

  The electric field shi/ak/ kionod773 coz9own

  Can electric field lines intersect i2emwy10 *ph(knldaw1vpuh )t8ut8 r9n free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform eli0 45;fqwi ;sb cfe-xu tbg c6:y-i1cjectricjt g:i ys 51cwb xebifci;0; -q-46ufc field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal gt vo/i s7;lk04uk15fb ; lwe/ ,vwbeisphere of equal diameters are each given the same charge, the electric f ie15 k wbo;i4us ft/llk7evb/wg ,v0;ield (E) midway between the center and the surface is

  A cubic block of aluminum restv y;,) / ubsn,c+ekyu3q jz:g jytfv6+s on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concey je;:zv u6+c yn)gvutqb ,jfy3 ,s/k+rning the charge on the block's top surface?

  If a conductor is in electrostatic equilibri+5wx66 t slw 7vtfu*htum near an electric charge

  A positive point charge is enclosed in sbcu9 -8ets;:8yo fi4riyf 9xa hollow metallic sphere that is grounded. As compared : 9esi;8-4ios8yy tr9 cufbfxto the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in stat klz pr*aq8xnep-+nq8kr6y1vm(7k o;ic equilibrium.

State Gauss's law.

  The charge carried byzs 1okey48-rq (nu (te 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 many more protox1kmoud5 jev+ 2 y fl4je(r:3hns than electrons does this piece of plastic hav +x423 m ohje:k15elvfj (dyure?

  What is the charge on 1 kg of protz:1tyk) -bb3jp 4s8eeis xg8qons?

  An atomic nucleus has 9b qyde,-x2sbm 4, yfba 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, have charge values of 2.0 and -4.0 mC, rfa.gm;ogs *2najv d)6espectively. What is the magnitude of the electric force betweenggj f vms; d*26).aaon them?

  A 1.0-C charge is 15 m from a second charge, and the force between them i 8fool.pwn b*88kp fi9p/g+xy s 1.0 N. What is the magnitude of th8np8lwpbi/ pxoy*.g 98ok ff +e second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are 5*x p;nqpsmros4 .5fqthey?

  The force between a :v+mbcv( ub7f e9g a+y$30 \; mC$ 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 1.0-N force. If they akx0j7zv4:k dlre moved to a new separation of 8.04 kj7lkx:z dv0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The firsyx*wbk,s+ qb; t 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 ma*;ykqbbxs ,w+ gnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axmzu 8-vrniz6 *j+ubo d0 w,w-ois. 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 mj*n 80u z6+o-r,-dow i bvwuzat 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 1e e)z1p0ymd 0)gmf(p mfy(gmat the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -fg(z em)p mp 0myfm1 egdy10()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 centero z2 cwr9kzu*; 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 o9r2ou* ck ;zzwn 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, 0y8p ,cba-du) j); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0-b)8 ajy,dcp u, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.1o*7w wb-t efvp7 ,wg.cjtape ;d-r*q:0 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on p;rc7: . -g wqf7ob*jtve-p ad*wwte,the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral dzp/or8d53 lxzp 4 gau+mu+.b tridulamd5/zpu 8bpg o4rx++ 3z .angle which 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 separated by 3.0 m. At what poiezqys,/,nchy0 1whd -6+vga uisf; 4r nt, on a line between the two charges, would it be possible to pghv -e4 1s; /w ,nuz6hs,+yaf0rd yqiclace 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 m. b1- )owex 5) qc8rlcr5tlm1omWhere on the x-axis can a third charge be placed so the net force on it i olbte1w58mrx)o lcrm 51c q)-s zero?

  Charge +2q is placed at thl/jtb;r6ewzafnsh l8b 2-/;; ixwp 9ke origin and charge -q is placed at x = 2a. Where can a third positive charge +q ws6;tr/hlb8x l k;/an fzp2j-b eiw 9;be placed so that the force on it is zero?

  A copper penny has a mahau43rci.:i.3qv2s ft/kq 7w.mbria j/6qw j ss 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 fixe5m gmt.z3pf/ld proton some distance above it. How far above the electron is thz. p 5g3ltm/fme proton?

  Two 0.20-g metal spheres are tf5-j5 ookr3fhung from a common point by nonconducting threads which are 305 ot 3o5ff-rkj 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 9a6o msf4 /tgkof +40e. What is the magnitude of the electric field at a distance of 1.0 m from9/gsaf 6 kmo4t the nucleus?

  What are the magnitude and direction of the e2e9kkz)uogn0 sd 5 4nolectric field at a distance of 1.50 m f4k9nou)d 2 gnko5ez0s rom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge ;,u w+dpco-,hxtfa/ j0ngb*y . What is the magnitude of the electri/- ;y o,tjx+h0*cgdfpu,a nbw c field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chargkkfrr y-4o8 , p/ vde-t:zua7le. What is the direction of the electrdfuz8/ ro:ylev-4a-,rk tp7kic field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of t a:bf*upal9hp 5r-tvo w4 *;fzhe force experienced by a 1.0 nC charge placed-zvl w9t r*;auhp4f :fp ob*a5 at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance o0v *rpxwj0 p6jnn8a er j7un:3:jq1tsf 4.0 m. What is 36njapqrtwp8j* esvu0 n x01 nj:j:r7the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stigd*ty. clu *4kck and a -4.0 mC charge is placed at the 50 cm mark. What is the eleclutd cyk g4*.*tric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and nnpc.0f ywg o 35x3b k.c rcyn1ytf-38a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the el 3kboy 3x8 pwcn1fyyfn0g.t. nr- cc35ectric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed a6s q4397ysudvff. ge mt x = 0 and x = 0.20 m. What is v3dmy9g.6 e qusf4s7fthe magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corn1fb.syj9elbb6riao:, jxs4)*b1s jp hbp(k( ers of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the squarjpjb.* a:jb s4bo,) (xsy(rb1f1slh 6pib 9 kee.

  Consider a square which is 1.0 m on a side. Charm;xh(vygt q5q(b qia4o (r9 1wges 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 fiel;wmbxq4ih y1g9 qtr5o( qva(( d at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a (p0j hn d5 zzal2qg-;, rki 3q3p7drlruniform electric field. Whqn-35 ;rip p30q rz,gljrh7dz(2lkadat is the magnitude of this electric field?

  A particle with a charge of 4.0l+hxs(ku7g9;-71tjdz s fkr g 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 6000 (k, pjz.ac;(v ds)fnf io3rn5 N/C pointing downward. What charge a(sd5 nijkf3prn)z(o; f,c. vmust be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.0mk.kmx( ba23u 0 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 electrickmua3 bkx(.2m field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What i7u(b d.c x,llnnz j/spe0wu2 5s the magnitude of the electric field 5.0 cm from the pu, (n0wc2 ldseun7x/b 5jzl.sphere's surface?

  A metal sphere of radius 2.0 cm carries a char/w s;eom3 4k) i4t+cyp5m gekfge of 3.0 mC. What is the electric field 6.0 cm from the center of the sp4y5kg;3 mep/kw fct) esio m4+here?