State the law of conservation of electric charge.iw3cn kjf./4 n9lc ui7

  Is it possible for two negative charges to attract eaw +a*7iufs rl7ch other?

  Is it possible for a positive and a nevl/ml79ds2zl+,p xt hgative charge to attract each other?

  A glass rod is rubbed with a piece of silk.2odk;gl6k e)mp.wx ;tvsneq6l ;r 5;h During the process the glass rod acquires a positive cha)vr62 koe;;w5xl t kld6gnpq;m; .hesrge and the silk

  A proton carries a

  The model of the atom shows ;d(usjad(/r / bxn.p , q,yhvla

  A neutral atom always ;8s k audt:cvd3kdk3,*d*lsn has

  An atom has more electrons than protons. T+c gssn *i94qkh(u7izhe atom is

  Materials in which the electronsnx;y5 tilh,v. 5lzu)yj wam/7 are bound very tightly to the nuclei are referr5; yxmu, ./t7ill5w)vyj nzahed to as

  Materials in which the electrons are bound very loq0gc(s,s ;f yv ths/p7osely to the nuclei and can move about freely wcvsp,h; tysq/(7g f0 sithin the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. pi9a x ,;p7i o7gaf7d kw4a1ryo*vs)jis )e 5xThe end of the metal bar farthest from the charged rod will be cha * y7v)ao4pd1ai 7pg s9ks eiax,o5xir 7jf);wrged

  Sphere A carries a net positive charge, acbg.l d0 +pil,nd 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. Which statement is corr g.+ibll,cdp0 ect?

  How can a negatively riqnwh.0* - o2 4rn,emgo 5fmdcharged rod charge an electroscope positively?

  An originally neutral electroscope io5i +,sj x8tm6np 5hvzs briefly touched with a positively charged glass ris n vozt,8 x5m6pjh5+od. The electroscope

  An originally neutral electroscope is grounded briefly while a positively c +but.ppu0qi.hv( m 7yx4q-i8e0oojiharged glass rod is held near it. After .y0oqxh ii.jmpqei ovubp+07-4u t(8 the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaverh 6(fu9xx4h os separate. Then a negative object is bror94x6o xuh h(fught near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. 7u6faos: qdjnl b ;xn)d k:+g4A neutral metallic ball rolls straight toward the object, but 4x ;6: g7j+sk)baql :ddnonfustops 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 final charge on each ball?

  Charge is

  What are the units of the Coulomboij(rbqu ,1: 8tax6xvuo6mx , constant $k$, which appears in Coulomb's law?

  Two charged objects are6km4v xu.dq.ezopf;nspx9 ;bp6 0ng,5mvs-h separated by a distance d. The first charge is larger in magnitude than the second cdvvkpf nqzxn,6p.so.gs euh9p5;m0 ;m4 xb -6harge.

  Sphere A carries a net charge and sphere B is neutral. Th5dw jnmfm:5(8rt whx. ey are placed near each other on an insulated table. Whi55xmwtwdn:f mr8 .(jhch statement best describes the electrostatic force between them?

  Two charged objects aolk: qwr; e/t2ttract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between torw:2qe k;l/t hem

  Two charges are separated by a e3c:.u0 div4bfpo3 l hdistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance ofo dbfpe0l4:c h3iv3u. d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. 4qrh f6blnp494s0g gj What 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 one-fogb9qr gl 04hj pfs46n4urth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What hai98qm.y0cxyb/ x, vna ppens to the magnitude of the force on the proton if a second electron is placed n/ 0,b va9cm yxi.xq8ynext to the first electron?

  An electron and a proton are separater)fh ;bas c)x1d by a distance of 1.0 m. What happens to the magnitude of the force on the first 1)cr )bhax fs;electron if a second electron is placed next to the proton?

  An electron and a proth-d39 tnvck)n,ql nj; on are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron-vj d3,tnqc nnh9)lk; is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a uuzh5-3pdimlzd6.4 rj 0 b4j0bqc+qmsecond 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 the center of the sq . 5-zq+0mcmpbrlh4iu4jd b u0d3jz6quare?

  A point charge of +Q is placed at the centroid of(ynx( l bfh:d;zk /u8lot.j 3.wv6kkm 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 th;jk l tnk(/m.o8xklzw :6du.ybhf3v(at acts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is notco1y u 52z36n bsxalh/ a vector?

  At twice the distance from a point charge, the strengththx7w6 n;jna:qt b96 h of the electric field

  Is it possible to have a zero electric f 0*re(ujbl ag+kvz tzj *z:q02ield value between a negative and positive charge along the line joining the rg0z:l2tkqe0vjujzbz + **a (two charges?

  Is it possible to have a zero electric field value between two posj.))xu lo a*xnog)p8pg /pcj2 itive charges along the lin8 xon/xp)o*g p2aj.pu g)lj)ce joining the two charges?

  Electric field lines near psitive point ch uvl1 *h3+hnqjarges

  The electric field shown w /snc8cm(hqd xmddv- b(d3no).t:d:0 duu8 e

  Can electric field linesysnq+k4qc6,v wyi1 xm3t;n3i intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform el(6q or::e eo;xsa*wgk ectricxs oo qrake:g*w:6;(e field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sl4j +y81nica)o) ipy uphere of equal diameters are each given the same charge, the electricl) py i ioa+4yu8jc1)n field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regi/b9:c7, qbz (neme zyyon where a uniform electric field is directed straight upward. What can be said concerning the charge on t9z/qb z ynme,:(b ce7yhe block's top surface?

  If a conductor is in electrostatic equilibrium near an e,xd/rr4h(e so-mm uh;lectric charge

  A positive point charge is encxhy ). 3fjjj)wj13qdg losed in a hollow metallic sphere that is grounded. As compared to g)hqj j3xjy fd3.j)w1the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertikfidr,+jox ,n1i02lo es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by o6c 7nnxh5bj.k5 c t*zfne 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. Hows4 rjcwvc 8.btj(w0i2 many more protons than electrons does this 2wwvcjic (4t80 bsr. jpiece of plastic have?

  What is the charge on 1 qymjv w3: .j1.v.k2 xym) yhuikg of protons?

  An atomic nucleus has a 6+9nfxy 6 x8gqah4uatv1n4lncharge 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 -4l+tu +msd:a sa,1: ufi.0 mC, respectively. What is the magnitude of the electrica mdi,sftusu:+1 +l :a force between them?

  A 1.0-C charge is 15 m from a second charge, and theup0m5 80swygd force between them is 1.0 N. What is the magnitude of the second charg8dp0gs uy05mwe?

  Two 1.0-C charges have a force between them of 1. 1k5q yrll ut8-:3p yyl8oyge4,w4fex 0 N. How far apart are they?

  The force between a q 2z7*-zl p/7 xd)c;brrj t;kehbjt( c$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienz 58ef8k)3iuf : avpavce a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between th3:8pfe ik8zv a)auv 5fem?

  Three identical point cz9t a lm-nnj/ yk:y,t)oznl/8harges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second-j)z9// o:z lktt yn8m n,ylna 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 chmwt92je,d 5 -dydn9f karge 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 cmkddejy-9t m2nf 9d,5 w mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = if+zc35-tnkk,axf t)* qc tp*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 th*5 xc*ktifknt, z3cq ft+ -a)pe force on the 3.00-mC charge?

  A point charge of +Q is placed4kcnh3aqb 6 b+ at the center of a square, and 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 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 lc3ka hb4 nqb+6ower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is atn5cvc 2 y4 /*yqloik)n (0, 0). What is the m/k 25)*yynl qcvoi4n cagnitude 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 (0, n. hu/:b bn)vt0.10 m); Q3 = 5.0 nC is at (0, 0). Whun :)ntbv/b. hat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed n8k, ,ign wsd6at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts onn6nd8,si wg k, any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. Atd5 sp04lqjv+6 nv9 saq6n4uux-.y mxv what point, on a line between the two charges, would it be pous 4q+vsqd myx-ju n9lnx6.6ap04 5vv ssible 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 m. Where uv4 2-mzofg+c)to5sq2c gxq( on the x-axis can a third charge be placed so the net force on it is zerc2245 f(o-ztgm s vuq+o x)gcqo?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. ozvwn /b93vcc5d 0kd/ Where can a third positive charge +q be placed so that the force on it is zczb c3d/vk0 dv5w9n /oero?

  A copper penny has a mass of 3.0 g. A t q++w)u:;qlnoo lz9 -fl4bccdotal 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 ol05-l vsh0fkw4 r cw)zf gravity by the attraction of a fixed proton some distance above it. How far above the electron is th00 fh )wlrw4l5zskc- ve proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductingyvcskf:iycxdjpp 1 7/4gc ))k0 f1df( threads which are 30 cm long. Both are given identk01( cyid7sxy1 cgfcf/dp)fkv pj):4ical 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 isds0yld6n jpj ;y-t7: n the magnitude of the electric field at a distance of 1.0djj;yd0yl-t p6n s:n7 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance(il/ y:35bu8f yeto zk of 1.50 m fromk (38oiu5yl/ zetyf :b a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the ru -t sofp/;qfqv0c()electric field at the location of thtu f) pfqrco0s/q- v(;e test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dir 3j33z58m8sjnk8y(gfz a lks lection of the elejzsny 5a8k(f38l3k3 8g mjzls ctric field?

  A 5.0-C charge is 10 m from a small t +c45n)leof-t edp+qvc+) ch oest charge. What is the magnitude of the force experienced by a 1.) +elfc+)q4 pt dn- 5ovocceh+0 nC charge placed at the location of the test charge?

  Two point charges each havec+khi)ybvno4hl3o0tqgp ) t +8w5r-m a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric fielyq8h3loptg0 4on)v5+ m t+chwb) ikr-d at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mrwizxa, vj. y4n uxni)v(78-orp d1(vark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electrro. dzi )-v,ujxnv av4(nw r(yxi187 pic 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 chargdthvwx*(r )1f e is placed at the 50 cm mark. A)xt wv*df1h(r 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 = 0 and * .ngcl g7ula5x = 0.20 m. What is the magnitude of the electric field at the point midw7*nguc . gl5alay between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. The l 4(sgcn t+. ts(5-my/m*:v sih nebnqyast corner is occupied by a -3.0 mC charge. Find the electric field at the cen t esy(y/4t(+ svn.mb n*:gq5nshci-mter of the square.

  Consider a square which is 1.0 m on a side. Charrw u08zzoq6d;jnh (;+2zz jav ges 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 ao 6rhd( jnz8aquv zz 2;;j0+zwt the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it igw i501xy.c d83 pcyess placed in a uniform electric field. What is the magnitude of this electric field? y 8cd.w1 03pxcgs5yei

  A particle with a charge of 4ew;uhwhkd* 4f:, :u xs ((xphx.0 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 plaihtk2s7r6h r,pz+w3n ced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?3i 62 r+nwrs,hhpk7tz

  A foam ball of mass 0.150 g carries a charge of -fd m9*cl4.q7 gxuv i3 xz0rpd62.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude rd9pmzflv c*xx 4d3.7iq0gu 6 and direction of the electric field?

  A metal sphere of radius 10 cm carrirg 31n 0 e;rpkv4x*tyles a charge of +2.0 mC. What is the magnitude of the electric field 5.0 x0v3g e p;ry4rt*1lk ncm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 m*qb ,to *nutf6C. What is the electric notb,*t 6 fqu*field 6.0 cm from the center of the sphere?