State the law of conserdv 1n(tpdq7f6joz, inj l*) n1vation of electric charge.

  Is it possible for two negative chakk+hp+slx 8;v4cu -5 pufg5fmq5 ex0arges to attract each other?

  Is it possible for a positive and a negative charge to attlk5th( shn0d)o cshgm7zuc3: 7sx1,m ract each other?

  A glass rod is rubbed with a piece of si)cucdy 871kb olk. During the process the glass rod acquires a positive chuyd)co1 8 bc7karge and the silk

  A proton carries a

  The model of the atom s aj+uhhn1 rrvw4 a6j96hows a

  A neutral atom always hx-9m 3bw(i hjaqf9+(lk6 xet aas

  An atom has more electrons than prou0lzmxf(kgl,o5 nn 3 9tons. The atom is

  Materials in which the ele +tth d4vng 5s(75p s6spwx7ilctrons are bound very tightly to the nuclei are referred to as+4 nw lpt6t7gsips( 7xd5vhs5

  Materials in which the electrons are bound very loosely to the nucs n+n+yb;jt/ klei and can move about freely within the materia+y+ns j/;ktnb l are referred to as

  A negatively charged rod is uu7.. xcva)e ebrought near one end of an uncharged metal bar. The end of the metal uveu.c) .xa 7ebar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plac6s1ee +r4 zi2c2itpyj ed near each other on an insulated table. Spye4 1z26reji2 +stc iphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope 4f:dru yr5 fpofkc(),3+ ggutpositively?

  An originally neutral electroscope o v 1hnd/+:x7 6bahuwwis briefly touched with a positively charged glass rod.+wau : hvh/xo16b7dwn The electroscope

  An originally neutral electroscope is grounded briefly while a positively char ;j3xrlvx 4lbsnfa(0z33b qi4ged glass rod is held near it. After the glass rod is removed, the electroscq3sl0 azirjxn3;(v44l3b x bfope

  A positive object touches a neutral eleht2 w4u jez;m-ctroscope, and the leaves separate. Then a negative object is bru2j-ht;4 ewmzought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is plavdu;r,c )h ;ft7a 9rl: +mmdr6alyw) nced 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 bal);,n 7m c;r) :wrufa r9dvtlay+ mdhl6l, 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 Coulomb coe8yq z mk)1 nzcbr(j-v9s6n:crdf ,6dnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lar(;h618w*u1hivscuv1e a q mnlger in magnitude t1m c6vhu; 1e8( lvu1i h*nwasqhan the second charge.

  Sphere A carries a net charge and sphere B is ) l8qcvfh+aoc)9+oi xneutral. They are placed near each other on an insulated table. Which statement best describes the electroc8ooiqfa9hv cl+x))+ static force between them?

  Two charged objects attract each other with a certain force. If the charges on pu8 i6y3pb +jrboth objects are doubpr36 yiu+j p8bled with no change in separation, the force between them

  Two charges are separated by a distance d an68l k0ylw(g qsd exert mutual attractive forces of F on each other.g 86ykl 0slqw( 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 force F. What happens toh j i+pu in)bfpx, mhv;2a0/c4ib(qh; the force between them if one charge is doubled, the other charge is tripled, and the separatiuxqh+bhj im/ )pv;c4,hi an(0b p;2fion distance 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 distane cacqm3 1):vg, m3zqlce of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed 3 a1qmz vg,meqc3l :)cnext to the first electron?

  An electron and a proto)lni*kh igcpbh 1)*y 2n are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is h)** 1nci ky2ibg)ph lplaced next to the proton?

  An electron and a proton are separated by a distance of 1.0 m, 23kzpyhm4+ibgi8vss t(6 osc2uz 3r. What happens to the size obh 24 p38ku2 (sv z+3rmcissizg,o6tyf 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 / pn1asmf9pso+,m ,en. 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 ts+a nsopnf,p/m 91m e,he 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 an equila r:a3vt xxdw4/fra2 ,oteral triangle. When a second charge of +vf 2/:trdox, r4a3waxQ 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?

  Which of the following is not a vecto:8g1wxo 9ncgxr?

  At twice the distance from a poq iiz iv3nte,f+)2ub 0jrw36n 6fwkw*s;p 9zxint charge, the strength of the electric field

  Is it possible to have a ze0r*/.abvp 1yeeu kko7q3sg id:g0e x7ro electric field value between a negative and positive charge along 7gxira*0yevue/ qd17 bk 0k3g:soep . the line joining the two charges?

  Is it possible to have a zero electric field value betw:b j3gxdmof1.l(k p io 7xz6d3een two positive charges alongjgx o3i mdx:(1l7b kz.dp3 f6o the line joining the two charges?

  Electric field lines near )v kh)wx n/l5b+ccslcz:olt: js5 *z;psitive point charges

  The electric field s8oz 3cq/rykav, n6u y*b0;cy uhown

  Can electric field linesx 5++yub o 0/v;quxeaa intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a unigy )zql; s7i)mform electricszq7g );my )li field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of esazzz7-fuj* /d11du:nxb y85di7 ldqqual diameters are each given the same charge, the electric field 1*ya:j zd zi7s/qbd d-u z1 nld8u57xf(E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden tableic5h2di ;h y)d in a region where a uniform electric field is di;)h di 5ycid2hrected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nej m .lf3*b78q;g hcpjkar an electric charge

  A positive point charge is enclosed in a hollow metallic sphere thb6n/ d 9 qq*p51wovykkat is grounded. As compared to the case without the hollow sphere, th/ d9 5qokw6bqnvky1 p*e electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriud l:i0nd0bb 0.kf)cydm.

State Gauss's law.

  The charge carried by a:1d5tdu mj17fq0 t pione 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 x7/ 5 gu5w0ipp as+ekazd1la9protons than electrons does thi7w a1e950 5u lixapdg/p+kasz s piece of plastic have?

  What is the charge on 1 kg of pro81;ao2 qkxu xc0jw(q x 5b:2slxdfs/otons?

  An atomic nucleus has a charged x2a6:w )m* ap9,nrszsh6eduu d**w j 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 cy(v5 c rb1-gnuhku 5;2.0 and -4.0 mC, respectively. W5nygvu ;-5uk1bcc( rhhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charg e1jc.hhk i/e2e, and the force between them is 1.0 N. What kj2.eh/ h iec1is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far ap eofn:13, gagpart are they?

  The force between a -(bo gi.rv5 )x ;jwvvr$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exp) z o u e6,von4iz*hxm*q*2wmderience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force be )vexim o*z z4do*wu ,2*mn6hqtween them?

  Three identical point charges of 2ez zh6x.1u t3u-xrxc 4.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm,6euzxu.1 34th -zrxcx 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 on the x-axis. A charge of +2.0 mC is plac5,tpcgwq 37nqe5yk)ges*r vul)+ ;sh ed 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 3hy;)*n )p e+7qsu ctkv,5elws qg5gron the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00wfb)+a l:9 ;qgid u/sl mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC atl9/wl +dbqgau;i: sf) 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 second poie4 7u vi.b qzht(:u9:k,py isqnt charge of -Q is placed at the upper-left corner. It is observed that an electrostatic forceiuesi47 t:uq:v,h kybzp9 (q. 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 (0gv 8adix *y -6+r2haxt, 0.10 m); Q3 = 5.0 nC is at (0, 0). What i2xgta6i* xyh+v d8ra -s the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.a7d 4j 2u6 lpsc+yyro.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5. so74u+ly6cp ad2jr.y 0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equzt;.i07pq xz kd. zadtzdty 26-x3 sf:ilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any d 6st:tz3tfz;-dydxx zq2k0 apz..7 ione of the charges?

  Consider point charges of +Q and +4Q, tj l / e8xub)(:ynwqfsn;us6.which are separated by 3.0 m. At what point, on a line between the two charges,(8)xf ql uujen6:ywt ;ssn/. b would 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 chari0fq l gm p0a(*acz lp/ ,-6l9 rt.1pdiq7cbibge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net cpqg(.zia, l9i10i r tb-l*q0/lb6p a7mpcfd force on it is zero?

  Charge +2q is placed at the origin and charge 8d z6v:vd m6 7b1zeitx-q is placed at x = 2a. Where can a third positive charge6z8e6b71xid td:m z vv +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A totalnlm1dcj3m m5: 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 gravityezmnb1o52rti f3pt :1u 4ihnxb.; o d: by the attraction of a fixed proton some distance above it. How far above the i5z:t fib2ou b n4:pe;mo x.hr13ntd1electron is the proton?

  Two 0.20-g metal spheres are hung from a pz vwu :n5)p *l+c qrqh49p)hxcommon point by nonconducting threads which are 30 cm lozxhpprqv5 )lw: nhpqc*49+)u ng. 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/kqumhr .):s. xew1 h *j0/yunmvz zt; is the magnitude of the electric field at a vt *:u.muw/m 0.hq x;ys)z1/jr knezhdistance of 1.0 m from the nucleus?

  What are the magnitude g,if o2b/6qtys2mz0)p j+de7 aaqq 7l and direction of the electric field at a distance of 1.50 m from a 50.0-nC charge,d7 s)+me lpi0g fj7tqabyaqq6 22zo/ ?

  A 5.0-C charge is 10 m from a small test charge. What is the qehhsjxj..nc,u)9b ( magnitude of the electric field at the location of then ubxjq)c.jshh 9.,(e test charge?

  A 5.0-C charge is 10 itg,;d);wh 67;td zver*vjoxm from a small test charge. What is the direction of the elvgd*x,ij7t);wv z;d ;r oeth6ectric field?

  A 5.0-C charge is 10 m from a small test c *jggrp5kwzio9ut7bi,e* 6 5 :+w0w. a hkxhwiharge. What is the magnitude of the force exg wgi5ikiph+w*z 6wu ja,o57twe.*9: x0hrk bperienced 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 and are separated by a distance of 7hgv l43,qh.* i)jjwefdsq- h4.0 m. What is thw hi7gshhel*jq4,3) fj-qd.v e electric field at a point midway between the two charges?

  A 5.0-mC charge is placed au5pszls.ny07 vs:ln 2 t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the 2:nssls7ln pzvy05u . electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter sticipyg.u1f301dz y psns 9,2hea k and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two c9i ,.h 0gefd21ayps3uzsn 1yp harges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. Whb6u ld1 u*fcwyps4yfe+zts1; v *iz6.at is the magnitude of the electric field at th4 6v 1*b6z1tsl yd.e ws;fu fpui*cyz+e point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The llhmu7xdk2h yu8 2 t+7t 62bcivast corner is occupied by a -3.0 mC charg727mt ybt6dk +iuxhc 2u8hlv2e. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners o)o os iroj(ms95( pvf2(spvl p+20 maaf the square as follows: +4.0 mC at appp0j a( r (2 )fosmo95vso2v +ilsm((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 ooe*upr9ph v6ed4 9 ud(n a charge of 5.0 mC when it is placed in a uniform electric field. What is theo ehpup(uvr946d* e9d magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass of 6w6 j6yp1:npuw d g qmse;,,xt$5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g gu0teh::iv66 fsz2ne is placed in an electric field of 6000 N/C pointing downward. What charge must be placf 6e :szu2:n6hgeivt0 ed on the ball for it to be suspended?

  A foam ball of mass 0.1pluftu u.*3+nimu+0.f ,s kvb50 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 muuts3.*n ,l+buv.+fmi u0 fpkagnitude and direction of the electric field?

  A metal sphere of ran ipq ,r5:m ,n(.gtr:+qkoizcdius 10 cm carries a charge of +2.0 mC. What is the magnitude of thrzo g n,ri,5m tniqk+qp.(: :ce 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 thee8j us8 b/nv9e electric field 6.0uv/9 sbje8n8e cm from the center of the sphere?