State the law of conservation of electrit o1pn),iwttluv6o 7w90r/c0hg ek+ fc charge.

  Is it possible for two negativpbsfw8 ;g-1qi e charges to attract each other?

  Is it possible for a positive and a negat38zf hh (kw/ ale3qbi;ive charge to attract each other?

  A glass rod is rubbed with a piece of silk. Duri-126leqg2bmyt pau ek+5rk3fng the process the glass rod acquires a positive charge and the e61pq2b3ym-ral25g+fu kt ek silk

  A proton carries a

  The model of the atoavgf we5-8 60cfaszx 1 kox.n9m shows a

  A neutral atom always hasicq xyvgi n1eu8,jv47b 7*a,z9b les4

  An atom has more electrons than prw-m; gf3 ywx6potons. The atom is

  Materials in which the electrons are bound very ti6rc;f9 ,xa.ja(/i6nfp u4 8ogk4dy wya9doifghtly to the nuclei are referr8 dui6noy6daig( jr/ fx,fypa4 oafw 9ck.4 ;9ed to as

  Materials in which the electroio/v qss;3n e871 khgzns are bound very loosely to the nuclei and can move about freely within ts8k s3qg1;zoie7/ nh vhe material are referred to as

  A negatively charged rod is brought near onss-4teimwca *i2dn ); ubk l73e end of an uncharged metal bar. The end s3ls4bw2t)m-k*de i7 au n;ciof the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positivehzm:*k ) jwlc0 charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B isj w0)kmhzcl* : briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope x7z tzduraz,ug +5)ga 8o 5+dvnj*d r+/hpga*positively?

  An originally neutral electroscope is briefly touched w)rt 2qi nh+o8,j kdcwp ait7 (:aubb()ith a positively charged glasnict)7h +r(bk 2pao qi utwa(j d),b:8s rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positively c-c6 yo/d.rqzy r7ed)vr 1g9 fefn6 cw8harged glass rod is held near it. After the glass rod is removed, the ele/f cef)yw6 n-d91 er8 o6rvcdy7z gqr.ctroscope

  A positive object touches a neutral :-p tdqoea75p electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but doesdt7p:ap5oqe- not touch it. What happens to the leaves?

  A large negatively charged object is placed bzq5aq dzm/72p4*vua 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 bqpza /2uz4v db 7m*5aqall, 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 consta*skj 7;xz n*0w8k+akwvgaj+ a nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. T)fkd,+viga*z c vojul: d 0v-+he first charge is larger in magnitude than the u c:* ivkl ,-a0jfvg++v dd)ozsecond charge.

  Sphere A carries a net charge anpcda5 ;l,tbx 4d sphere B is neutral. They are placed near each other on an insulated table. Whibx5;d c tla4,pch statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force.9woud otkrm( ,, /r/pl If the charges on both objects are doubled with n p/rrdo/kt,l(9ow mu,o change in separation, the force between them

  Two charges are separated by a distance d and exert mut cs-r / yrcvb00b*b4 eudtc8m:ual attractive forces of F on each other. If the ch/cb es80b4 dcc*ym: -vu0b rtrarges 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 a8 nix3ff8/65qc9zn t d-ygqshappens to the force between them if one charge is doubled, the ot58g 63 fn-/ snq9x8adytqi zcfher charge is tripled, and the separation 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 distance of 1.0 m. What hap/x fc n6w/:munpens to the magnitude of the forcnc6 wx/n/u:m fe on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Wv8,rf *sxwym9d q.f 0nhat happens to the magnitude of the force on the fi, sf 9xfvwn*0. rmydq8rst electron if a second electron is placed next to the proton?

  An electron and a proton are separatk. cg5hoo1r u+ lso4.ced by a distance of 1.0 m. What happens to tlcur1 h45g.ko c.+oso he size of 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 -hhc h.q8(gpwsquare. When a second point charge of -Q is placed at one of the square's corners, it is observed that an el(c-h 8hq.h gwpectrostatic 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 of the square?

  A point charge of +Q is plp/n3i yugm8b:g z:xv 0aced at the centroid of an equilateral triangle. When a second charge of +Q is placedg0 m3/:inzvpbux:g8 y 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 vector?rc4;lqed d- ;na7 .div

  At twice the distance from a pointm /7-0tl)g yjnz;e xa6o2st bt charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative f j7h 8a :fxjmf,*fm-dand positive ch,:87 *-ffjffadxm h jmarge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive cham8iil 8e,ofz gz d *bfzp,,v-7rges along the liizedb7ip*8,gz fz,v8fom, l- ne joining the two charges?

  Electric field lines near psitive point cha6yy (ut 78kd6bm0ajlyrges

  The electric field shown (gzu jj7dakc0r5 c+o2

  Can electric field lines intersect in free spspid- 9e2ff r.ace?

  A solid block of metal in electrostatic equila 01ytc:q ebn9ibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's interior. y 0:bt91naecq

  If a solid metal sphere and a hjf:sj ydq je8gx1da992y3q -aollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the sujs8 yayfd93:2de x91gjq q -jarface is

  A cubic block of aluminum rests on a wooden table in a regiongy+mep1y e 7qmaza(j3(;i *ov where a uniform electric field is directed straight upward. What can be said concerning the ch3m;p a* iozqe(j+v m 1g(ye7yaarge on the block's top surface?

  If a conductor is in elw;dd egz mzxh;t7 z:bo,t4lt :8+zuu)ectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metall+c/m,rz k3z cxic sphere that is grounded. As compared to the case without the hollow sphere, the electric fiel x/zck3cm ,zr+d at a point directly above the hollow sphere has

State three properties of conductors in stati 1l)jb( w4sebkc equilibrium.

State Gauss's law.

  The charge carried by one electron is , 5.nlirdcu:woljl.b r.d l+0$e = -1.6 \times 10^{-19} \; C$. 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 morejpm 7d 5ux0xa9h8g0 j6bbq ue) protons than electrons does this piece of plastic hapbb)e6g5 d9qh0ma u j80uj7 xxve?

  What is the charge on 1hc* h( 3gpooa8yz;5ag .8krln kg of protons?

  An atomic nucleus has a charge o e -.. vc((m20 fgallgxep+gidf $+40e$. 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 xxx ;a31d-rtbn xqz3*of 2.0 and -4.0 mC, respe1nxxx3t dq;zba *r -x3ctively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge.h 9z3t wqralu..g. aq, and the force between them is 1.0 N. Whatg.qq9 . 3.l w.aruhzat is the magnitude of the second charge?

  Two 1.0-C charges havey+1d4ip5iq:9 tbqoev a force between them of 1.0 N. How far apart are they?

  The force between a ;0 uyz0ros q s)cus6:b$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apx- jnd5 2a/u bffyq6.lart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is th.b x5 l/fuf-62ayjdn qe electric force between them?

  Three identical point charges of 2.0 mC are placed ondlg3 rq( c/mhcjs1a73 the x-axis. The first 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 the el/7(j31drl agcqmcs 3h ectrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 q8o7s0hfy m)f* lz +fdmC 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 acts on the f0+)ol*smfz8 y 7qhdf charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x = nh 9u+uf nmgiwa 2hc)s*1ql 091.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.0)qn us*wnuhc 1 9l2gfm 0i9+ha0 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 po1a8tbdrt 7shw g3) e5:y 5hwriint 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 magnituded 5whye3gra7w:1 )i 8tbstrh 5 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, 0.10 m); Q3 = 5 rnwnnq*4j.834gt+l ofyif( xf2d: sf .0 nC is at (0, 0). What is the magnitude of the net force on f o+gx.yn(t*wj 3:fq4dn 2i 4srlf 8fnthe 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 mo kdbpzdgxeg)2(.bl (c+nk ;);z b:bf); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC c bd;p nc:(xgg+l 2bd.)ok zz)b;kb(feharge?

  Three identical charges of u10iuvzeqoa()tad 4 +3.0 mC are placed 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 of the charaou+(it0 z1 du4aevq) ges?

  Consider point charges of +Q and +4Q, which are separat y-sx (x/yfz;jr*cdj(ed by 3.0 m. At what point, on a line beyxz jcy ;fd /rxs(j*(-tween the two charges, 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/q( tbg-)ni sq a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on -q)biqng/(t s it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x y:kknf7 3 iv4q= 2a. Where can a third positive charge +q be placed so that the force on it is zek:3ny iqkfv4 7ro?

  A copper penny has a mass of r6z6.0v1dega5com, zl7ei jb/b m(y z3.0 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 ge + xw8v+ylqrk6q-ztd) riyqd7rj5 c48k91q xravity by the attraction of a fixed prorl q 571dwx84j6 -ik qek+ryr+)vx cyq dt89zqton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheresin gqp8n5 idp8qfl7 0,d 2pi1ut(bil7 are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsi 5lddn ii0pplb g7 q p2un17ft(8i8iq,on 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 3yn6d b/y/2q bhijb5zof the electric field at a distance of 1.0 m from td// 2bj6z3iyq5n bb yhhe nucleus?

  What are the magnitude ander ae)s v*c)/ar0cxx4 direction of the electric field at a distance of 1.50 e*cc xve/)sxar4r)0am from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a s2 4j1(chk ogs 0ak1ee 3o8yu ,qx3jnkimall test charge. What is the magnitude of the electric field at the location of the 4kk,8uxy(cj oe 01k q3a 1jgh3n2eoistest charge?

  A 5.0-C charge is 10 m(3cxotfq*gvcmup +/1 from a small test charge. What is the direction of the electtf(opu m+ g/*qc1 vx3cric field?

  A 5.0-C charge is 10 m from a small test charge. qf eb9gmyp2.9k9bq9; l*dwqzi(yfr: What is the magnitude of the force experienced by a 1.0 nC charge placed 9b gbeq9krd2y( ;9* qf.:fly q9 ipmzwat the location of the test charge?

  Two point charges each have a value of 3.0 C and aeo )/ckdv3nfby,w48q 2x/b)uvbtu/ ere separated by a distance of 4.0 m. What is the electric field x/)fbtbqo, ce4 dnv/e)bu w3 u8/k2vyat a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm ma p bm,ji(3xa2. h(ofqtrk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the el jf( .q2oth3bmi ,ap(xectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mete7mdp-(9x mj wa0yfc h+x :8nqur stick and a -4.0 mC charge is placed at the 50 cm mark. A-p 87+ycfmxh9: 0nqwa uxjmd(t what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x 4-f9l -o 6+n kzt- ldurt7tvnb= 0 and x = 0.20 m. What is thtbfuk zl v4tr7ln+- -ot 9nd6-e magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of ycr avcl)y+g s176dn0 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 theysvd) cncrgal +y7 160 square.

  Consider a square which is ql,iab1(l v /rb wph8kf5oo ;f;ph+v)1.0 m on a side. Charges are placed at the corners of the squar+ f/;;5vbh ko1(lq h8pbfwo)a,i lvp re 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 center?

  A force of 10 N acts on a charge of r55 /dt6xbjx l;etbk )v xzad7ccs7+/5.0 mC when it is placed in a uniform electric65x5btcsd/)zdtx 7r+b avec; / xjl7 k field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mkjxc g/fg kll1oqjt 40: iv/x yfrg-8/c+*(xyass 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 electri4fp*k2ms3 b1/e8 d8kbejx e )io(mbjrc field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspepm be3(j/f8e)b*8i mb2k4ojsdk 1rexnded?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is pl mle.qo( p re8i7.f+mlaced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the elecfqp.oi lme.l7 em+ (8rtric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 kslgalo7d dmajp2 /x3,2h,-wmC. What is the magnitude of the electric fielw s x,ddm2a a7gph/-,j2 3llkod 5.0 cm from the sphere's surface?

  A metal sphere of radius 21jh8skk8 x ;:ecnq- rrwb d-7bh 8gdb3.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the cenxw 81sgb debr87h:;brkh dkjc8q--3 n ter of the sphere?