State the law of conservation of electric charge ucpi,xsiu8w:9:7 mfe.

  Is it possible for two negative charges to attract ea:*xh:b 1qccs dca.e5jxn2 1urch other?

  Is it possible for a positive and a nov191n gtw;lcegative charge to attract each other?

  A glass rod is rubbed with a piece of ssdd5b+3 olk:hzy 3y *rilk. During the process the glass rod acquires a positive ch+ykd3h5y3br l*z: sodarge and the silk

  A proton carries a

  The model of the atom s aw9(eyc1 kd2ehows a

  A neutral atom always h :fag0f e.sb0kek n0o;a z+ju)as

  An atom has more electrons than protons. The atom ispf /8-mu nc:na *3faalav0tf7

  Materials in which the electrons are bound very tightly to the nuclei are refert1uybvpx13+vyf v: 922 qkdbvrtv+yb9y12 vdv:f1ub3qv k 2 pxed to as

  Materials in which the electrons are bound very loosely to the nuclei asye(h.ngwpyfy ;p6)l4 + uvo 4nd can move al( y.4)6ns vugo+ 4e pyfphyw;bout freely within the material are referred to as

  A negatively charged rod is brouqm+db-.u 9 smrght near one end of an uncharged metal bar. The end of the metal bar farthest from the charge+ 9mq mu.sdbr-d rod will be charged

  Sphere A carries a net positive charge, and sphere o(2*t b8evwqe B is neutral. They are placed near each other on an insulated table. Spwv 8ee2*btq( ohere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an elec76(hvztyuvv;w* 2/ mp/tp r8 k 3gdcihtroscope positively?

  An originally neutral electroscope is briefly touched with af5 ; ,mv xu3(t1ckfdgmth6ub1 positively charged glass rod. The ,uf1tgbxhukmm 13c 5tfd 6;(velectroscope

  An originally neutral electroscope is grounded briefly rx.uh/;t3x bb while a positively charged glass rod is held near it. After the glass rod is removed, t.xu trx/;bhb 3he electroscope

  A positive object touches a neutral electroscoko 11,p lzv.zrpe, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to tr1.k, 1zlp zovhe leaves?

  A large negatively charged object is placed on an insulated table.9szgstws0i1gudcwc 8g./ 2c5 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, strikw9z /sc c1w8cg5ig .s0dgu2ts es 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 piwac:u-15o0rt jd -a Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger pl*peylb 0..l+i3r slin magnitude than the secoyl l.sll3* pi+0eprb.nd charge.

  Sphere A carries a net charge and sphere B is neutral3vyya8 gnjr..ltkl7k j8 zvem5895qd . They are placed near each other on an insulated table. Which statement best describes the electrostatic55t3j j8vlra8 ez8lmy. vk9q7 gkdyn. force between them?

  Two charged objects attract each other with a certain force. If the zl235 *nhmvfm2 o8zld charges on both objects are doubled with no change in separation, the force between zn*o2h5mv23lm8 f lzdthem

  Two charges are separated by a distance d p i hfjkpvj5/g68f7yvk ;9l e6and exert mutual attractive forces of F on each other. If the charges are separ7p85 jfgj eypl/h; ifk6vkv6 9ated by a distance of d/3, what are the new mutual forces?

  Two charged objects attractmke jnw,- x-ym,k6k6r each other with a force F. What happens to the force between them if one n-m6mr,y6,kkx j -wekcharge is doubled, the other 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. k b+pn-4 /yrjj9ptd; eWhat happens to tpk4r jp9ydntb;e-+ j/he magnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distani(m gt cav0wri()ub7; ce of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is plarg()mv t70w;acu i(b iced next to the proton?

  An electron and a proton are separated by a distance (k,uwe13om pmx z/lbf hw)) /gxl z2c,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 2 l1x)/hu) cmg p/,(3,lzwkwxb fmzoe proton?

  A point charge of +Q is placed at the center of a squar8xd,bs /w2ofr) obxh +e. 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 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 th2bx8h x+,w srd)o of/be positive charge at the center of the square?

  A point charge of +Q ism ld3x0 +a.djbh 6lxa5 placed 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 ad56 j3xm bd+allh.0x 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 vectmesse)p( gjg *ksa,7i2 ,f/+ec8 ng nvor?

  At twice the distance from a point charge, the strength of the eq06wmvt ngvyb s we,/bo0,q92lectric field

  Is it possible to have a zero electric field value mxy/7ahjfql,0: 3tfabetween a negative and positive charge along the lix7t/3a,fqy:hlajf 0m ne joining the two charges?

  Is it possible to have a zero electric field val8pl1 )bv uivl n5lc;r*ue between two positive charges along the line joinb8;n il p)ulv*1cv5r ling the two charges?

  Electric field lines near psitive point charq7wjwenw n2233bd b:vges

  The electric field s .uyt a3ad/ 6dku+x;vohown

  Can electric field lines intersect in free spac71hi co m t9dbw7jtnq7my) 8)ae?

  A solid block of metot2 7u(jc4c.fp-bcj d7 szkn+j 8/ aoqal in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the b77(q 2o .puts 8zj-cdnokcja+4fc /jblock's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are ea:.x 0 tdyai ,ehtxxi06ch given the sayidtix, x0exh6 ta.:0me charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on aq1e3k0h4sbk r 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 top suebhrks34k 01 qrface?

  If a conductor is inu-v /*:fx3w6gga gil e electrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metal4aza *tkv8 j))1mxbxvlic sphere that is grounded. As compared to the case without the hollow sp)m 84ja vbt az1*xv)xkhere, the electric field at a point directly above the hollow sphere has

State three properties of conductor n)wrl(,ga myqmwa q*32/+tchs in static equilibrium.

State Gauss's law.

  The charge carried by one electr4f ni ek-mvfm +gk.;t-wgk*xq 1:j4w 1dm,hqjon 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*4uzkt + qz9ki9xee cq*xdv;, more protons than electrons does this piece of plastic hzx duq4et*q*i 9c+ze ;9v x,kkave?

  What is the charge onw7-3z: ikrl;lfuk+et 1 kg of protons?

  An atomic nucleus has a charge of w *k 7 i:q4ejonmo3g)b$+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 c:v5 .hrvivqx 1m, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of trvv.51v ixq: hhe electric force between them?

  A 1.0-C charge is 15 m from a seconxw b 12i3pinb j:1lew(5g 4guvd charge, and the force between them is 1.0 N. What is the magnitude of the sexwl31 pg21nigu 5:je wib4v(b cond charge?

  Two 1.0-C charges have a force b*usbvz nl b .7y0p532)dl p msv1nj4cd 3fp.lnetween them of 1.0 N. How far apart are they?

  The force between a y0jy i8i pn/gitm/,b6$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initialawp oxe26wr gtdz 21y4asi32/ ly 2.0 cm apart, experience a 1.0-N force. If they are mt1x2 zr/ w epwdo22ysai4a6 g3oved 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. The7 )j4yg m:v +whfymss0 first charge ismgh wf)4 :yy+mjv70ss 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 electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 m+f-o,wtx; ynnsrrqo0 h7ukq4*9f2d k C is placed at the origin, -2.0 m C to the right at x = 50 cm, andu;xrhoft+4w9-q,k 2 *kod r snyqf7n0 +4.0 mC 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 located 4w*ed;slv vt8s5 ce ie :v:u +x-b-aucat 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 th4e:lxb;i+5wua--ucved csv:e *8t s ve 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 point vi;q o;pc8 f/zcharge of -Q is placed at the upper-left corner. It is observed that an electrostaticvp z;/f8 ;cqio force 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 (0, 0.10 m):wcz0p*dx,(u 2i98oq w h nwaf; Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the :i2h,*q(8pa9wuwzf c no0 dwx 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is a2.qflw/h bl +ncsdlofc :0/3st (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC char:s. +0/cc2fld n wlhofql b/s3ge?

  Three identical charges of 3.0 mC are placed at the ver33zu 8ht,ay snv ,ojp3tices of an equilateral triangle which measures 30 cm33p8 ,ytvjahzon,us 3 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,km;g15l7ah z u which are separated by 3.0 m. At what point, on a line betwe ; klz1ug5am7hen 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 a +9.0-C charge is at x = 4.0 mkg0-cm5m anzqog3vp p4 6-. mc. Where on the x-axis can a third charge be pgp-5o.g n qcmzmpa3mk0v4-6claced so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placedtlw d(cu qy)-ca4nh6, at x = 2a. Where can a third positive charge +q be placed so that the force on it i(tu6l-ayc c,d n)h4 wqs zero?

  A copper penny has a mass of 3.0 g. A e/q f b-*j7 hgnn* xm5lj:gcelwv;,;dtotal 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 attractiom) .9z hn6 n y:dz:adp7hotat.n of a fixed proton some distance above ihm:tz 9 nd:. d.ota y6znah)7pt. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by .gpm)n;dt1 xdnonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the antddp;n).x 1gm gle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chargeqk /7rsm6s xji8g6d(j of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the ns(kxi86/mqg7jjrs 6 ducleus?

  What are the magnitude and direction oznc h4ucq:3 p;f the electric field at a distance of 1.50 m from a 50.0-nC chn;3hqc4cuz: p arge?

  A 5.0-C charge is 10 m from a small test charge kc9e3nhvhgcn,gb6fd (9 )*v p3(kxib. What is the magnitude of the elk, fx39pn 36b ch9e*vgvk ( (gcdn)hbiectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test chargefv0z3v75a2: t-u 4qd. hrb qger.yplh)a wrm;. What is the direction of the ele)0 d;bhvyaulrw3r 2 h5.t-zv .gf qmaq:r74pectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitud- ljwl9vd 7pdeih 4t86e of the force experienced by a 1.0 nC charge p84 wpv6 jhe9itl7-dd llaced at the location of the test charge?

  Two point charges eachrl*nj3u8vu q. have a value of 3.0 C and are separated by a distance of 4.0 m. What.r uvuq3lj8 *n is the 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 stick and a -4.0 mC chargei.m 7xc0 pr*uo2jio 6u is placed at the 50 cm mark. What is tx *i.0jo2 cu u7mpro6ihe electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the jv fm70bumv fjxj u*di0l(;1;0 cm mark of a meter stick and a -4.0 mC charge is placed at v 0fju0*;m1v7buijml ;dx(fj the 50 cm mark. At 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)grrfa r: ),eq are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between qf)rarg r e),:them?

  Three 3.0 mC charges are at thm:2jyu* :.y k 6alzpxae three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric fiejy6 * lkma.:ux apzy2:ld at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placeq 2jyf:( nyc5yd 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). Wha2y(qyy: jfn5ct 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 whenn nsdgo w*0+v zdw84(s it is placed in a uniform electric field. What is th8ov s*nd0n 4 (swdzg+we magnitude of this electric field?

  A particle with a charge of 4.0 mC has yb4;0vs.xxh ua 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 electh -0c px k5oev9;l4.f ccy5zfiric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspeno-ye vc5f i9fxh4k.lpc 5c ;z0ded?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is 864jlx wfg8jjrk ./ ouplaced inside a unifou8 ./l8r6j kjowx4 jfgrm electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magpjjt/ppg.+) znitude of the electric field 5.0/.zpjj pp)+gt cm from the sphere's surface?

  A metal sphere of radius 2.0 cm canaqlc09 / 9 :qvirt5igrries a charge of 3.0 mC. What is the electric field 6.0 cm from the center9g5vi:l0ct9 qin/r a q of the sphere?