State the law of conse:sfx8l p2c9o a 86jitdrvation of electric charge.

  Is it possible for two negat sz4o:4xiy 2zuive charges to attract each other?

  Is it possible for a ip8brau-bqzj0 x4):c positive and a negative charge to attract each other?

  A glass rod is rubbed with ajb ::zn6ge;p*0 j p,3tlcg xdt piece of silk. During the process the glass rod acquires a positive cn gx, gz::ej3 p;6 lt*p0bdtcjharge and the silk

  A proton carries a

  The model of the ato:+ ujad5tsg.quxz t s,vs ),8zurvl:7m shows a

  A neutral atom alwaymg g )d7kh pyy,u0ut6:s has

  An atom has more electrons than proton(3wdd w tzs)2x-gpe,,8 fpadws. The atom is

  Materials in which the electrons are bound v x*j:i pmpnc5 w+x,h3bery tightly to the nuclei are referredbwxc ij3pn5+xh,m *:p to as

  Materials in which the electrons are bound very loosely to the n nj6orj0hzgzml*) 88t uclei and can move about freely within the material are referr8*omtnlh jrz j 6z0)g8ed to as

  A negatively charged rod is brought near one end of an uncharged meth+o x6a i;g:jd +gecf/al bar. The end of the mefi+oxcg; /ag:e+6hj dtal bar farthest from the charged rod will be charged

  Sphere A carries a net positive 5eac7.ulat6 yl e(mv/(mg sc6 charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whichg/((al lse.e vummc75atcy 66 statement is correct?

  How can a negatively charged rod charge an electroscope poscc mua///mxu41 l5je qitively?

  An originally neutral electroscope is briefly touched with a positivels4ddt 6g -qtop+,7nhdy charged glasgt-ohn4ds7 pqt+d,6 d s rod. The electroscope

  An originally neutral electroscopl8a b2x afjqv*d 1j((de is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removefjda( jxb (vd*q 8l21ad, the electroscope

  A positive object touches a neutral electro(a4+ylzoi d h/scope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What d ioyh4 /(lza+happens to the leaves?

  A large negatively charged object is 3 ))f gon9g 0ilkij bt9yn0ccn9o/6qmplaced 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 f/ ofb9y n gtjm9i) 6ogni 3)k00lcncq9orward, 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 *hagcb-4g4i aconstant $k$, which appears in Coulomb's law?

  Two charged objects are separpu1t0y wp: e38u(uze./o hx 43d ihbdkated by a distance d. The first charge is larger in magnitude than the second charu d kbhwh0it o8u 413/3 (ued:z.ppyxege.

  Sphere A carries a net charge and sphere B is neutral. They aryoy,bott2 6 b4 ax+ul37 nkm9re placed near each other on an insulated table. Wh,u9y2oo ylm6ra3+bn4b x7 ttkich statement best describes the electrostatic force between them?

  Two charged objects attracts893d pien2 tq-mlj m3 each other with a certain force. If the charges on both objects are doubled with no change in separation, the force9e m3-s83j dqni2plmt between them

  Two charges are separated by a distance d and exert mutualgvtdu g1z;c/7d) u 9zc attractive forces of F on each other. If the charges are separat1g u7)d9cc/ ;zu tvgdzed by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens al1i ql vs;zvs3 7j8)kto the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to ois 1k; vsaz)38llj q7vne-fourth its original value? The force is now equal to

  An electron and a proton are separated by a di t (+;; niurns3 kltyw5fe.3lmstance of 1.0 m. What happens to the magnitutt. ;fi+ ser y(m3nln5k 3;ulwde of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separateo2: qt8oev 0+ lxlhkqygc8kq.36z2gp d by a distance of 1.0 m. What happens to the magnitude of the force on the first electro8g pke3x tl.yq:kq8z qoh+lvo20 62 cgn if a second electron is placed next to the proton?

  An electron and a proton are separ73 3vzy-rcb abb f-wd-dd9iy,ated 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,3r9a7yzfb-i-3 vcd bd w-ydb proton?

  A point charge of +Q is placed at the center of a square. When a secc5 7clc4wq5 gq2s w xc( u8fpvv-1j+avond 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 posuxq85pv 5+ 4c7vcl12 js-q cawcwvf (gitive 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 equilateral trianlwxi2q/6t 3zmgle. When a s z3lx6q2wim/tecond 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 other vertices?

  Which of the following is not a vec ls+dffu*ue; kc0 o.,xtor?

  At twice the distance from a point chaptg3zl*iqka 0 n ;*n.orge, the strength of the electric field

  Is it possible to have a u :ovc 7ct)g0j7b.mkutc4 4ci+ cl/qfzero electric field value between a negative and positive charge alonu bvtl fk:mcc 74g0ji4cco+ ut)7q./c g the line joining the two charges?

  Is it possible to have a m8qa) at64cd- kscnu+ zero electric field value between two positive charges along tq4 -muadcca)k8+snt6 he line joining the two charges?

  Electric field lines near psitive point charges f3 vr2rs+(: nb2;pehuvcfdl+

  The electric field sx a0pg 2 g.soz;1yj t:9aieen*hown

  Can electric field lines intersh 5ktz,x(rwnh1 y45kbect in free space?

  A solid block of metal in eujcg* t -/6zfulectrostatic equilibrium is placed in a uniform electric field. Give a statement concerning theu jucf -/zgt*6 electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters arep01qaip j60e*f mx: yynw*u6j each given the same charge, the electric field (E) midway betweafp6m06uy01njy *ij :wex *pqen the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a un fwe 7bcmdh+ )(ux(wk;iform electric field is directed straight upward. Wha(wxbewhmfu 7c ;k +)d(t can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium bn3h6dbdgfrh 9*w 1p7 near an electric charge

  A positive point charge is enclosed in a h+hdf )1uj q:2:yfx gy+mi:hjd ollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hol qfhm ::+:gyf)+jd2hj 1diy uxlow sphere has

State three properties of conductors ing97 djo)yol.;uddu,wnht)6d static equilibrium.

State Gauss's law.

  The charge carried bylp d4rjh kvd:dg04 v5 ,e5g,zg one 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 man(gv6 v w;n60r /b0 -rjqsxa kcubdxq5j4(c6 mby more protons than electrons does tqb-4 xjrwc kj a6;b( 0m/ (rudvv0x6qb ng6c5shis piece of plastic have?

  What is the charge on 1 kg of protons?e0429f zxitg h

  An atomic nucleus has an e6emgpxb ;*hxu o2;c(dy9es69q l/9fm/mwo 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, have urz jyc-)a:us.z e98bvb/kd,charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electrivj kc.-r/ zz sb):u ad89e,ybuc force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweenpu+avdbbac ; 3(p)vv bv0b;3 p them is 1.0 N. What is the magnitudbbvu v v)p3(p3bdc;pvab0a+;e of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far1u4 n albl0yb-j1fkd .:w5-i5ggle u69y bb ya apart are they?

  The force between a gt /.o:wi (w3kgjkovz (20jxm $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force. If they63;jw 7w5 /mvfoncdlz are moved to a new separation of 8.0 cm, what iwwm76z53c/nj ; ldo fvs the electric force between them?

  Three identical point charges of 2.0 mC are puj ry; i/ue5*k x2gy r3cj;4aslaced 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 are the magnitude and direction of the electrostatic force which ea4 x3*isy; ruj cgu;kjr/5y2acts on the charge at the origin?

  Three point charges are placed on the x-axis. A c1v*idnn8 9 6 qdnu4u) gmdq:ksharge 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 ar un:qsnvi*) gdun864m1dk9qde the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are locatea eaaxe21 32svd 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. 2sae ev2a3a1x 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, an-p0-)ow57m pjtnmg13wyynpn d a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts oywp5-wn j0g)p7 3to mpyn-m 1nn 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+iprvd)mq4 rpt.y 4z 3f5 *zne.10 m); Q3 = 5.0 nC is at (0, 5zp)qr4nmte*v iy pf.3d+ 4zr 0). What is 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 n7vb7sitw yc,i f5z-s (C is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Whazbti f-77, yw(c5 ssivt is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed g5ue 3g*y+neflu6 gx:at the vertices of an equilateral tr6u3g*gf:l ey xg5n+e uiangle which 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, which are separated by 3.0 m. -xrp *vucfb..l( y5wx dh7n9w At what point, on a line between the two charges, woulbfwn*r9x7vxl - u dy(wpc. 5.hd 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 origi. jdt o(:t+jztkw8ds8n and a +9.0-C charge is at x = 4.0 m. Where on the x8djt+.kojw 8(tt dzs :-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the t4a cm6n3 ;nk a4ek97- w ,u;6mgkjcnaxc yg;borigin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it ij cwgunn7t,b3a;ack4k4k6 g mcmne 6a;;x-9ys zero?

  A copper penny has a mass of vk50 h46 nfhff3.0 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 forh90x ct1-c) jkda0virce of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the phavc -1 x9j)rdci0 0ktroton?

  Two 0.20-g metal spheres are hung from a com wuj-vlblattw91ja(;un *n2*mon point by nonconducting threads which are 30 cm long. Both are given identical charges, j9ba21 uwnnu lv;-atlw(**t j 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 the electrb2j -*;g wwov hwb5c1xkm h+7pic field b+p271 wwmj;x vcbogw*-hkh5 at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance o(at afl8dgk0. f 1.50 m from agf8d k.0a(tla 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitdlk93 he gg*c0c7vm3n. iciy3 ude of the electric field vie 3i3g0c.*m3 d gyh7c n9klcat the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the +y e ox:;bopy w3:a0atelectric fieley;o:b wo+p3x :ya0t ad?

  A 5.0-C charge is 10 m from a small test chargl8j:rpd28-;v: myfc lw2su the. What is the magnitude of the force experienced by a 1.0 -8s82wjur fv;2:hyd lctmp: lnC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0- 9hvo/eh /xop dc,4e k7hdt,b C and are separated by a distance of oc7pd bo /9h ,, hh/-4eetxdkv4.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed 3;jm7 hc(y bilat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electy7hc3mb lj( ;iric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm ma3v;nvklhq 7; bbr2*bxrk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a lb7xn 23k;l *rqvhb ;bvine joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 qjt2 (tu9zoib6b6lw8 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric f2wti8 b6jzu9t q(6olbield at the point midway between them?

  Three 3.0 mC charges are at the thre)la:zk 3 b (38 ycn,sfym tf.n12myrnje corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field slc3 2jf byt.f n1z8, na 3ky(yrm:mn)at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are0/fq0m*kac mk qu4ui ; placed at the corners of the square as follows: +4.0 mC at (0, 0); 4 i0;qk am0mq */ukcuf+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 pltf2hs8hk qy)f9gf: 4caced in a uniform electric field. What is the magnitude of this electric ff 9t)2y8 s:kghh 4qcffield?

  A particle with a charge of 4.0 mC has a g6s6s hu 5m,fmmass 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 N)0fmrs q br1nq3)dd4e/C pointin0 enmr ds1qf r43bd)q)g downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g car9tak2s2dw br io;)9bq ak/vy7 ries 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 magnitude and directb y7b2qk9)idw at2v;as k/r o9ion of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magniu qec,bw1.d1c hlh-as zn35:etude of the e.c q nh1u:-hb 51es3aedlcwz,lectric field 5.0 cm from the sphere's surface?

  A metal sphere of radiua4pzf0c2x zi 7s 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from t2za7 04ifpcx zhe center of the sphere?