State the law of conservation of electricch-ho 5wnfx *w: ;j6mxqrca c4us50*u charge.

  Is it possible for two negative charges to attract ma 6sb+w+mk1ieach other?

  Is it possible for a positive and a negative charge to attract eachwoorj y7sgmt+f 988ngk(: 0 qn other?

  A glass rod is rubbed with qn3;x ch*rzhgvf9m f:o :*x.z a piece of silk. During the process the glass rod acqui nx:rfqz hgcz 93*:;.moh fvx*res a positive charge and the silk

  A proton carries a

  The model of the atom shor; b,tayhezcof0 7n:8 ws a

  A neutral atom always haax*8re, rgpuhw )q ;heq+7t1as

  An atom has more electrons than pro*6lo 5:wa0j8o r, jeb 1uuxzeatons. The atom is

  Materials in which the electrons are bound very tightly to the nuclel:dgy5aqr( 5 bi are referrb(g: 5yq5 ladred to as

  Materials in which the electrons are bound very loosely3gjyecwk4 cq76z2fpi u.ws5g pa:a 77 to the nuclei and can move about freeascpk q75 647icgg7 w:.eapyfwj32 zuly within the material are referred to as

  A negatively charged rod is brought near one end of anqv d/t.pvo8 .zsz 4 d4mli3nnyj.i:t; uncharged metal bar. The end v .;:/s.ot4.zj4 tvqn i8ylip ddz3nmof the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is .tg ke72etpi iytst596p5,ol 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 ct9ti6epk . st7, g 5lpy52itoeorrect?

  How can a negatively charged rod charge an electroscope positivelyj :z)-ui4xcih3cw n -i?

  An originally neutral electroscope is briefly touched with a posshf )yv8 lx:a+a8p+pl itively charged glass rod. The el:)+fps8 +vy a lhpal8xectroscope

  An originally neutral el t9y:kb07ru,vp qj 6vnectroscope is grounded briefly while a positively charged glass rod is held near it. After thevv6k 7, nbr:j9u qty0p glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. 9 quc/ p,q -jk4jdmb.b Then a negative object is brojucjqmb/ - ,9pkqb4.dught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insul6fu*59fxh d y4l/1i ylp hq+ysated 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 nodhusy +hiy 9l/xq y4*lf16f5pt 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 constant h :qoq :0ima.i$k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Thebyevj f7 m3(f3 first charge is larger in magnitude than the second ch337fj vybfme(arge.

  Sphere A carries a net charge and sphere B is neub)x7l-*cr smxtral. They are placed near each other on an insulated table. Which statement best describes the electrostatic formrxsxl)b*7c - ce between them?

  Two charged objects attract each otdvs8o l0ug*)n,en-kbtuo. m. her with a certain force. If the charges on both objects are doubled with no change in separation.os o),0e-bnl.8u dm* k vtugn, the force between them

  Two charges are separated by a dista amokta-a0j;z8v4 xo2nce d and exert mutual attractive forces of F on each other. If the charges are skx jtaozmva-4a ;o028eparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. W( ;*5 tzctru(8jxh82ic ktfh ahat 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 tz tc285rh i; *(actf u(8hjkxone-fourth its original value? The force is now equal to

  An electron and a proton are separated by a d 7f(gyrkf5a t4istance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first eleky74g( f aft5rctron?

  An electron and a proton are separated by a distance of 15muh-xb8j j/k,sc g(6d xp, vq.0 m. What happens to the magnitude of the force on the firs sj,gdv-j mub,8kcx/6 px(5 qht electron if a second electron is placed next to the proton?

  An electron and a proton are separath a (x+jzh)gx2oo0+y bed by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the protoh2)jyxo zbgx+0aho + (n?

  A point charge of +Q is placed at the center of a square. Whe z rtkm)j0( 8 xyta0yd1p,wu8yn 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 charge at thexpy 0y u8r8mwya1)(k dj,0ttz center of the square?

  A point charge of +Q is plaz*x; .+j8suf33uaccvs hp: rwced 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 the force that acts on the center charge due to a third charge of +Q placed at one of the othfahwzxpj 8 cuv.s r +*3cus;3:er vertices?

  Which of the following is notqmj:t9(5nmha9 s0kw +f9rsn j a vector?

  At twice the distance from a point charge, the strength of ploi;l4czxfmy, t03 8 the electric field

  Is it possible to ha9yjr (r) 46 d87 mzlvgasqj7sive a zero electric field value between a negative and positive charge along the line joinin szyli7m)rjqdgvj 7986ar(4s g the two charges?

  Is it possible to have a zero electric field value between two positvas0.u. w. g0 alimrd4ive charges along the line joining th0l.gw0d au m.4.rai vse two charges?

  Electric field lines near psitive point cha7 7bt3u(v fwrjtz k)/arges

  The electric field si0a+ 2bretpq (iv4mg,hown

  Can electric field lines -zk*r.uk* sbt intersect in free space?

  A solid block of metal in electrostatic equilibrium is nr4usd7d5sw,wvm1d z ic ;s,7 placed in a uniform electric field. Give a statement concerning the electric field in the block'd7nur,ci1 7 s5v smddws,4z;ws interior.

  If a solid metal sphere and a hollow metal sphr;xgmh,t.j:/2,rbqw7pu gce ere of equal diameters are each given the same charge, the electric field (E) midway between the ceqx. 2m,r: cp7/bhejg,g ;uwrtnter and the surface is

  A cubic block of aluminum tnp+xi-pb hz;5 w7 0chrests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's tnczx-pp5ih+7;0hb tw op surface?

  If a conductor is in electrostatic eqgw wy7 ud58eidb0e e c)cn687zuilibrium near an electric charge

  A positive point charge is encl 7 **ubann,/h ep8zx2xures*x osed in a hollow metallic sphere that is grounded. As cu b pu*,nzx2sx8/ 7axenr**eh ompared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibriumwa vipyzl5 k,jcu u.+/r9t(7e.

State Gauss's law.

  The charge carried by one electron if**q tb zsj ) ygz 9/cyncm3mp)w;xc0(s $e = -1.6 \times 10^{-19} \; C$. 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 pro8exio p5x;7uw tons than electrons does ti;o px58u7ewx his piece of plastic have?

  What is the charge on 1 kg 0uuw4ik e7s0 1by 7ijzqdmcm6,f5r i4of protons?

  An atomic nucleus has a ; ;bw mq,36sj c.p33y uyzaxkvcharge 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, hgw:g 8nk)0 f1m km/lfe, z0tgrespectively. What is the magnitude of the electric force between :k/nglm)1f ,k0fmgt0 ze hwg8 them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0vl; 94)hkxhyt N. What is the maghv l) xyhk;9t4nitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N cg5qwc; you-k5v7yu 09xwrt). How far apart are they?

  The force between a 2 oir0kjgy6x y1z6rn,$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially hfta6/;eb*x u- t m*z0xp pa)d2.0 cm apart, experience a 1.0-N force. If they are moved 0zxh/ap6t u dtmfbp)e*x*;- a to a new 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 char.y2gof 7ts8,b(sic w nz mcfb*ow1;8rge 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 andyc;ct.*rg8, wn(s2s7ib zo f8wom1bf 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 placedcf0njku0 i7(w wd) r-r 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 electrostan)fw j70u-(kd rc0riw tic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC xf-4 b:qaz6 gyat x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m6b-gayz: qf x4. 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 secjqo mu/hs (pzq18-p4qond 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 theqp8 zq 4(qs1p jmhu-o/ 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 (0, 0.10 mt+ j72(,g fl0hmbw3+aumc c)+eh+ xocxu p )ku); Q3 = 5.0 nC is at (0, 0). What is2 u++ hox3+u7g)um)epac kf mcj x,hc+(0b lwt 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 (0rps,xrte-wh2a6f 5: w , 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of thepr s:5fwt r6-ex wah2, net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the ver1qn+4 rjulqsxf (( :smtices 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 charg r1jmquf n+qs(4sl(:xes?

  Consider point charges of +Q qilt1zr . +w )byfv:p bcfbbsp5;:*y.and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible lbpr+q)vs5.f z1.:*ify b ptbc:;wby 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 x = 4.0 mw arm fel(q9mi/r :/n+. Where on the x-axis can a third charge be placeq+nl/f:rmir9 a/w(m e d so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is pr:hn ai+wx 6 8a288xq.ayqg),kkwtvq laced at x = 2a. Where can a thirgkkq :r8qai,yv+2n q8xa axt wh8)w. 6d positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A,ul 4hb6)gut wz q*s3tcl :wp9 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 gravity4l, bd-os/n tb by the attraction of a fixed proto,sbo-/n tdbl4 n some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconi7vo8*9 wa fg :uc o;j2ay yy *a6a0-,qgonsowducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them; yji7agoon ,aya:c9sago*-0oqufwv8 y* 26 w 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 thnk1ezwg,3 )isw ;3tnae magnitude of the electric field at a distance of 1.0 m f 13w;e3sizakn nw,)t grom the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.;+ptq2pky6cj v 5 aci+50 m from a 50.0-nC chartk+ ip2;+paj6 5qyvcc ge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudi;: ql3mno+yo e of the electric field at the locatiyol:qm ; o3i+non of the test charge?

  A 5.0-C charge is 10 m f0f96aen- lg gjrm hs3g9x,h:drom a small test charge. What is the direction of the electri sxdfl96-ehj h ngg9,rg 0:am3c field?

  A 5.0-C charge is 10 m from a small test charge. +5 :m (vabxrze pb05raWhat is the magnitude of the forcxparmb5v+ rz0a:( b5ee 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 andtac /f)k91 9 l.4wbpy a)kdjjy are separated by a distance of 4.0 m. What is the electric field at a 9y 9.1tb aw/ jy)a4k kj)cfpldpoint midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a rwtsbn ,8 ;.wfvc oki(b*kp/9 meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric 8ck fp*t9kbrwv w o,(n.bs;i/field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC cha: +-n5ipavww krge is placed at the 50 cm mark. At what point on a line joining the two chargesp kw +-va:in5w is the electric field zero?

  Two point charges of +3.0 mpty7 y8kn.*s8uix;qj C and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point ys.jq 7yk x;tu8i np*8midway between them?

  Three 3.0 mC charges are at the three corners of a square of side8 bv9o;b ezli*gqg2 9b 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at theb;g be* b 8iq9g9ol2vz center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners 6zvlgz6 l9 y(sof the square as follows: +4.ylg696z zls v(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 5.0 mC when it is placed it6 :9-cdhm ug5jpt.a+ ctma53d )rudin a uniform electric field. What is the magnitude of this electriu rtda:c5ij+.)-36mpt at5cd9du h mgc field?

  A particle with a charge of 4.0 mC hassbm2gfib/0d6k k77 j i 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.lu7fr xs+7dwgxdawlc ff9u yj:f7.,4nj .,f N/C pointing downward. What charge must be placed on the ball for it to be suffjuxs7 ..fa f4d d7+rxygln.c,u 9l,f :ww7jspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Thqqp76d 2d.k(cj )plwne ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?( pp.6 nqljd)qdkcw72

  A metal sphere of radius 10 cm carries a charge of.rl* c tjeg8(w)pp hdg k7z0.z +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere'h.j8k.*e pczgdz 7wr l(p0gt)s surface?

  A metal sphere of radius 2.0 cm caf2g ss k*q75iqrries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphksg5 *i2qfqs7 ere?