State the law of conservations id)orwot1/4 of electric charge.

  Is it possible for two negative ch :nx00zprr ,hg gxlxo2+:qf1iarges to attract each other?

  Is it possible for a positive and a negative charge to attract eq/x,cqe3/jrg 7 i z;rhach other?

  A glass rod is rubbed with a piece of si; xb/mo7d1vjn :vzd7 keb k-2llk. During the process the glass rod acquires a positivk 2ozxlvem-7:j 7nbb1kdd; /ve charge and the silk

  A proton carries a

  The model of the atom mh0m l5j hb-xp 6i0c*eshows a

  A neutral atom always e(3yfr*qs g)lyf*yrw ,d6vw) has

  An atom has more electrons than proto)2q8g-5iso7ieyw x fyns. The atom is

  Materials in which the electrons are bound very tightly to the nu*qg:uh, n(vd uclei are referrvg un ,q(u:hd*ed to as

  Materials in which the electrons are bound very loosely to the nuclei and can f:u+jij 0..sjk:qgp amove about freely .pf0ik+:. u :jgjqsajwithin the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. gw+h /+e* ccgj2dr;sp The end of the metal bar farthest from the charged rod will be char*r;cg2+egh/ cjspwd +ged

  Sphere A carries a net positive charge, an s qo21si,im.v9hh.e*o rdfm;d sphere B is neutral. They are placed near each other on an insulated table. Sphere B is brvhm ,iisoosm r.9ehq1;.* 2d fiefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge any.1jtofzv:43 8fjkq;7y go ko electroscope positively?

  An originally neutral electroscope is briefly touched with a positively charged+keqow e3cuck 2 0m)(v glass rod. k+eoc 2me3c0q(wvu)k The electroscope

  An originally neutral electroscope is grounded brqlnog ( ;ju+.uiefly while a positively charged glass rod is held near it. After the glas +g ;juo.(qnlus rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separatez3:d gkhwyq -9. Then a negative object is bro: wgy3-kd9 qhzught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placedks) l k+jbxm g2 +5iwf3xd+k7ecz ,-xz 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 ml-wb2)ejxs3 5fz+ kk+,7d igz xc+xk final charge on each ball?

  Charge is

  What are the units of the Coulomb const11; bw:h ge 6vzk(,-tgsscl8wseg+w qant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distata6 qbvkmbqt vy.l,f 5)a.:d;;xn( hp nce d. The first charge is larger in magnitude than the secon yh,6b5pb;v.dq :fx ak( qt;)l.matvnd charge.

  Sphere A carries a net sn 9d,l do4ldbjjg 42,charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic forcsdll, 4 dgjdbn 294jo,e between them?

  Two charged objects attract each q z 9bach0+eb4other with a certain force. If the charges on both objects are doubled with no zhe4b ba+90cqchange in separation, the force between them

  Two charges are separated by a distance d and exertzvtc*;: e: j7,ge dnbb mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are ten7jebd:zb ;t :cg,*v he new mutual forces?

  Two charged objects attract each otherilfsgf* s8g34 with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separatio f8g43*flg sisn distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a pro -3a;5zvv. (1zsabdkg a(bvch ton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second eleca vk.a gbz(shc(v1 z d-a35bv;tron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens to/2y:axlo)plp the magnitua y/)px:o pl2lde of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are s4 ih ,vewqzvwpvs e2*:: nxo)6ungb- 4eparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moveq wuv ee6v-o,:nnhwi44 bg )2:ps*xzvd 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a sqd agah 3nzu7i 7kic+p*:+l (wiuare. When a second point charge of -Q is placed at one of the square's corners, it is observed that aial: cn*zi +wkp d73h(+7aui gn 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 of the square?

  A point charge of +Q is placed at the centroid of aw/;grn pwg4n) k. ;rny5j,jge n 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 ognkr ,n)/n jjge;45.;ww y grpn the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is 6hbdxrp( wtrzm82ns /jy6gu6z3 h :x+not a vector?

  At twice the distance from a point charge, the strength of the electric fl-hgx.y;* o( ormn0jw*1.us g jkpaz (ield

  Is it possible to have a zero elechrt2(7r*(b ++yx y.s3tynugzt vv4 uetric field value between a negative and positive charge along the line joining the two c.yhrbx( 7nv+tust g+z2*3tyvr uye4(harges?

  Is it possible to have a zero electric fil/j,jx8,nn nu eld value between two positive charges alon/ n,8lnjxju,n g the line joining the two charges?

  Electric field lines near psitive point chafv2smyq*pm 90*wm qr,a6byw, ,xsuq2 rges

  The electric field shosivlf or*b1* i.jb 3(4zv kg*jwn

  Can electric field lines *w7ib lid -ua2 l thy6laq5u*4intersect in free space?

  A solid block of metal in electrostatn8wn/(:jmsrizrq /*nic equilibrium is placed in a uniform electric field. Give a statement concerning the el *q r8jnn/:smr (zi/wnectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal di92;7 rt hsi-p u-3pdqpfh(tmtameters are each given the 2pt ( 9udr7 qth3-t-ihpsmp;fsame 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 u9n0u l5(, cz2jtmcu y40qwwcm niform electric field is directed straight upward. What can ym(luz c4j9t n20q 0 5ccuwwm,be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equift+a upm e nxu6 .z;c3*)4cnndlibrium near an electric charge

  A positive point charge is enclos-qjih :y5cf6 red in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sqfhiy5 rj6 c:-phere has

State three properties of conductors in statiun8,3ynz+l v at9wxm ( 4e)uxuc equilibrium.

State Gauss's law.

  The charge carried by one elect6 ,0e0ixxe z/mo/ydkbron 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 )5lb+zjiwxonfz. -r r 3m*n*ia net charge of +2.00 mC. How many more protons than electrons does thi. rziloj)nwzmf+3b5x-*n ri *s piece of plastic have?

  What is the charge on 1 kg of protons f7rwp72 ia -tx,jad7mq+x7tb ?

  An atomic nucleus hasy4lexy8; jk r7nfi*s 7 a 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, h jc2dt3mk/t j4ave charge values of 2.0 and -4.0 mC, rm43j ckj2t/td espectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chckh3 j,ve0, fsarge, and the force between them is 1.0 N. Wha,jv khfc3,0es t is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart 64;zphqdsy9/lj oj8d are they?

  The force between a 559 -iwebm *vihoa.ak$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, sr0cua8e-we1 experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force betw -ue08r s1acweeen them?

  Three identical point3 lhy5f1dwyb 62mtl no 5y(/zt charges of 2.0 mC are placed on 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 ar3(yy1fl5lh z2 oymdb5t6wt/ne the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axiul21:0u u0dt8dqs tlc s. 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 are the magnitude and direction of the electrostatic force which acts on the 1ql0 :dtc0d8tl s2uu ucharge at the origin?

  Three point charges are located odo odklc+w5*5e 4ykzz2+7pt at the 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 forokc5yzo25* +d+ zpwolekd 47tce on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point chad- l3lh g9k3/jbuqb.srge 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 ondk.3lb l3/u-sh9gb j q 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 5*d- 9 wn7d bcxnvjmknq,six8 xz71t6at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on -v1kn6 dis7x8c dx 7zjxwn9*t,n q5mb the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.1o v5c4gn-tqf1v+y trfr*st:)0 m); Q3 = 5.0 nC is at (0, 0). What is the direction gsqnf*)v45to+tf-r:cv 1t ryof the net force on the 5.0 nC charge?

  Three identical charges of hj ;rvnbp4qes4;6z 8-qbp+ud 3.0 mC are placed at the vertices of an equilateral triangle whiqns+6;;4jvq 4u8 h -rp epdbzbch 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, whici a.oc/f6-enzgo q ,r 9ypwj8n)ks /,lh are separated by 3.0 m. At what point, on a line between the two charges, would/ne, -lzoigsf/p,rjq nw)k 86 9ac.o y 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 +jtx :u vq2d2m89.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net f2vdjux t2q :m8orce on it is zero?

  Charge +2q is placed at7hhlvozv 42kzyn n6 4wcl5,e9 the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be plac z non24 7ehhv,5kzlc64vwy l9ed so that the force on it is zero?

  A copper penny has a mass of 3.0 g.g8;gvxw as p,l2pi :.z 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 for) u; axvzh3:x x6m/8qo6hszut ce of gravity by the attraction of a fixed proton some distance above it. How far abuz:hz3 ;x6mxx) v6hou t 8s/aqove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconduct1opw3l7x ,y/r 7nqmag ing threads which are 30 cm long. Both aa qpr77mxly 1nog,w/ 3re 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 of )) iqk by60ztothe electric field at a distance of 1.0 m from 06obz)kqt i)ythe nucleus?

  What are the magnitude and direction of the el ttk5*zle1s tmm*0/ h()ujytqw4dg * uectric field at a distance of 1.50 m*qg tuwt5 0hmledy1(/tsu )k**j4zm t from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge.x ,vjf *j9rvn9cl 5l7y3j u7aa What is the magnitude of the electric field at a7 9lj, 5a93vruynj*xf cjv7lthe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is tht2 b ,)c9v jxynwq:)bre direction of the el)9rv)qj2tybc b x,w:n ectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thn25 .zteasw8-jg0xtde force experienced by a 1.0 nC charge placed at the location of the te0 tw-sd 5ngxz8je2 .tast charge?

  Two point charges each have a value of 3.0 C and are separated by a diq84yp7w42k1et ckyuq zl h1q6 stance of 4.0 m. What is the electric field at a point midway between cyq 2k7q zy h41w146qpu8lket the two charges?

  A 5.0-mC charge is pade /m*djx7tuf5/j1cfapxs z); 3il h14sl ;rlaced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the e ls11pa zafh*/4j3s dire c/xfmt7 ;) l5dux;jlectric field at the 30 cm mark?

  A 5.0-mC charge is placed at thqd3tjigy (: 2te 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining g( tqi t32jyd:the two charges is the electric field zero?

  Two point charges of +3.0 mC v)g:ebs6a/eh and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magni)/hev eg6:sab tude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a4 :h)5bz:-3 jt nbzxeurr;4ia 5xphel square of side 0.50 m. The last corner is occupied by a -3.0 mC:z:- ph5xe3)hejn x;i4u5 tlr b4rzba charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m c )iq0y9 jpi::ehqz2sh: ip/zon a side. 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:s :j /ypz0)qieqphi9:c 2 zih at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform elecnx +74 j vt.2f swnv*ai;xa.;:ihj zjstric field. What is the magnitude of this aa : fs+snz;tj.v.*ij 4n7hj x;wvi2x electric field?

  A particle with a charge of 4.5g orb-5pxi2 y(e*5h7neymbb0 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 placedzwxwdz;ucui+;f qq: k+z/8c7qgjg8* in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball forzwiq+ zzgqq u;8;xgf /dj8wu *ckc:7+ it to be suspended?

  A foam ball of mass 0.150 g carries l7h4on:m,st 4csj 2uda charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the f4onh7 ,cm sdl:sut24jorce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10atkv 2:fnyhn6f t(we 2kn:: +f cm carries a charge of +2.0 mC. What is the magnitude of t2hawyetn f+(vt k2n :6:f fn:khe 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 the eq,*pms+7m35i q hfzhplectric field 6.0 cm from the center of the7hzmsqf,h5p +m q3* ip sphere?