State the law of conservation of electric charge.j0m9w;p g5j2iwm j0ww

  Is it possible for two negau rm2kx o0((krtive charges to attract each other?

  Is it possible for a positive and a t,,tf7jkgly8cq z4c 72gs0 uk negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rod vu7s* e vibz.l no)1;gacquires a positive charge and th* ge)v v7s ;il1.uonbze silk

  A proton carries a

  The model of the ato3a(nu +d8scwtm shows a

  A neutral atom alwayyny;5dghw xc1bvw2.2 lp )gh) s has

  An atom has more electrons mo4 c8 3:uv*hd (ntc.ut.lvwzthan protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei jbidc.z/ al2-are referred - .2bjcd/zliato as

  Materials in which theskg3wctpm: ), +y) duf electrons are bound very loosely to the nuclei and can move about freely within the material arew)kt d), s ucg:y3f+mp referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar i95: hxe,9ag- 2j-dy rsdzyjq. The end of the metal bar farthest from the charged rod will h -r:y,y9 j dd5j9zexgiqa-2s be charged

  Sphere A carries a net positive charge, and sphere B is ne cpyd82(m4 cdy5gws8xgl5a5mq* c0 veutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correc(g l0d5yecwxsqpcvmc5a*5 842mgdy 8 t?

  How can a negatively charged rod charge an electroscope positivelydrq )nb; cl6g-d 0;muj?

  An originally neutral electroscope is briefly touched with a positive owq(scsya/qkg853.xly charged gq3g/5cs( xw a. q8yokslass rod. The electroscope

  An originally neutral electrosy3ld+)np) mg0w1d tc wcope is grounded briefly while a positively charged glass rod is held near it. After the1y w)w)lpm 0gd+3tndc glass rod is removed, the electroscope

  A positive object touches a neutral e0uqk,+ii 1ayyt8/l(2em8a 8 cqhwc th lectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What iu81,+ha qec t 0(82yymack8 /thliqwhappens to the leaves?

  A large negatively charged object is placed on an insulated+smqj2sc)i *psr7,y9g tiq; f table. A neutral metallic ball rolls straight toward the object, but stops before si92;qg, m*7 sfsc+it)rj yp qit 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 Coulomb wo j6a4:/ele x9 0ovo, tmr1zeconstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by 7pv//d:dva:ta22jbh y9;*fojd w lx ea distance d. The first charge is larger in mldd t*dvea: p;2jfha wx/ 7obj /:2vy9agnitude than the second charge.

  Sphere A carries a net charge and sphere tw: w, s-h*fw6qe g,xaB is neutral. They are placed near each other on an inxw *th,g-f6 ewas ,:qwsulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each wv hx)7 pt1mw3nl)om89 yd3qmother with a certain force. If the charges on 1wn 7)33hx)m9 mmoptl8yvdqwboth objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual a+h gf:/ mw c,d1yma7 n+h6xjxzttractive forces of F on each other. If the charges are separated by a distance of d/m7 d 1 ahwfxn+gj+y:6zmh/ xc,3, what are the new mutual forces?

  Two charged objects attract each other with a fo (z* 8fado 5mq,*nn:2oio5 ctiojuin-ht)ov.rce F. 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-fourth its original value? The force is now eoq ooij5 nf* c)(*: ,h8-o n tuiod5zni2ma.vtqual to

  An electron and a proton are sezv+ 3x/hi4yqf parated by a distance of 1.0 m. What happens to the magnitude of the force on the proton 3vh/ x4f izqy+if a second electron is placed next to the first electron?

  An electron and a proton bwfgpk e+*,t*k.n3hy are separated by a distance of 1.0 m. What happens to the magnitude of 3 ybf,p+.t*knke wh *gthe force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a di-gq46- kg q wrxp-yix9e*f6 tjstance of 1.0 m. What happens to the size of the force on the proton if the electron is moved i-e64p qf 6gr*kqxwjg--y9t x0.50 m closer to the proton?

  A point charge of +Q is plabx8 6/dyf r*f 5p -e3v+moxwmmced at the center of a square. 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+pdvx3mfm 86e y fwmbx5/ r-o* -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 pl w2so0 tb3v,eiaced 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 ts2ow, e30biv+Q placed at one of the other vertices?

  Which of the following is not : wh;wmu j7l;t(vpjr8a vector?

  At twice the distance from a point charge, the strength of th 82sg 0x*fhwbe1s mf0we electric field

  Is it possible to have a zero electric field value between a negative and rgp os4.fa /pkr;k/-b0 u.z )ogfa7dipositive charge along the line join4og7kasf rozi-kp0 r)pa /;/bgu d .f.ing the two charges?

  Is it possible to have a zero electric fip,ms1rz2y1 pdpy(u9v f23)mhoj7b8 xr zl. dveld value between two positive charges pm rv,1 h7xj3p2 (yvzpom.ddl9y) fz1su82rb along the line joining the two charges?

  Electric field lines near+x*czqe )p kh1+ioc 0m psitive point charges

  The electric field shown 8+ufgev0dv. g

  Can electric field lines intersect in ocfx g345cy gjq);wfmf2/b ; xfree space?

  A solid block of metal in electrost*: mphhdjsvd/bfn417 atic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the bl dh7f s:mdv4h*jp/b1nock's interior.

  If a solid metal sphere and a hollow metal sphere ootrm: m++t9d kf equal diameters are each given the same charge, the electric f: ot dmrt+m9+kield (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uz1467hzag6 kk2rvhpjniform electric field is directed strapzr62azj4 g71hkkh6 vight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic e*fl9wtanq 0 i+quilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sph c8xgsb:)v-yap zm jkec.5n- b/lj q;7ere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the holblab;e)sg8j q mc:cy- 5.pzxn v -jk7/low sphere has

State three properties of conductors in static 4oa 44dw( es8b9z libuequilibrium.

State Gauss's law.

  The charge carried by one electron is v9f t; ang4/ox6;u3mufcqi o2$e = -1.6 \times 10^{-19} \; C$. 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 protons tha9/w2 jdlr kot0n electrons does this piece od0 wrt jl2k/9of plastic have?

  What is the charge on o3os8sh6 gmv8 1 kg of protons?

  An atomic nucleus has 5zb mtw) /j(nha 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 charge values of 2.0 and -4.0 mC12.azoyy5 ean7 w3ydj, respectijn y152ya .37oyadwzevely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m fqg +ezc:0g ( j+wnbxn8 ioqv+8rom a second charge, and the force between them is 1.0 N. n+q:8bv +zc8j exg0qg( +wino What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N.wkc hu z87ad10us*x c) How far apart are they?

  The force between a g uxadx5- pom6h50p,p$30 \; mC$ 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-./ 0jyslzc* qkN force. If they are moved to a new separation of 8qy.zlk cj/ 0s*.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 w5igv),(xr qf 4pg srsi.f8u)mC are placed on the x-axis. The first charge is at the origin, the second to i )85fvsq. ,(4grfgi r)uw pxsthe 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 mC is pbtq;qsk+m 4bli60u *elaced 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 tlbq+ 0kiuq *b64; mescharge at the origin?

  Three point charges are located at the following positi5+auh7cun63zog n vf;ons: Q1 = 2.00 mC at x = 1.00 a o ;uvhgu73nnc6f 5+zm; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. 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, zdi wpi- updr,(v((/rtr/ p+n 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 pl zpv-dr(r /+ntridw(p/ip ,(u aced at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 000y hnwaqk7s5); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.005 ahnys7q wk0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nCvo,0 ;ino hgak wd77v .7vp0xj is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dirnj7hp.a wd0kviv077;,vxog o ection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertigr0c/*4zkra i ld87cr1 a* oysces of an equilateral triangle which measurocsca1 k g4id r8l0ya/r *7z*res 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. At 5/razfhxi) pfx :8w-vwhat point, on a line between the two5xz)firxp w8/:-fh va 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 =bnx,.;u ym(d8o 3ol-yy) ftso 4.0 m. Where on the x-s m(ou,-bt )yoonxd3 yl;8 yf.axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and chae.y wg/xzy 1g 9mzipyr(q:2ih4* nyw*rge -q is placed at x = 2a. Where can a thirimy9(:zywg 1 r*zxey 4yip2/hqnw g.*d positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A ti n467bs1zh zqotal 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 th plt3p*zl9yl)wg c)c 9w/y 1 frglp.7le attraction of a fixed proton some distance above it. How far above thcc1*y 9pllr9wgwf)p 3tglz7l /)yp l.e electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threado )6j1 o5iswdo q-6yhhs which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle betw-wh od5s61 o6ij hoy)qeen the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is thkxtvv4 r4p 7 xo.uj4f5e magnitude of the electric field at a distance of 1.0 m from t7.4pvo ft uxjx4 rk54vhe nucleus?

  What are the magnitudei j)zv 9d8kk7*e f+mur and direction of the electric field at a distance of 1.50 m frku+zdj98*k 7e)vif mrom a 50.0-nC charge?

  A 5.0-C charge is 10 m f+azfix *c+5k from a small test charge. What is the magnitude of the electric f+ifa 5k*z +cfxield at 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 eynz ).urj36w2lvvalsv t 98maazh2 -5leca)lzha3v 6 -ynvusvrzw.jla92t28m 5 tric field?

  A 5.0-C charge is 10w2.h m;sh ae vxd,vqtqd *e+24 m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge plaqadwxv h2sh* 4,+v2;emqe.tdced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by s3qmti s :o281.tb mkqj/m)y ca distance of 4.0m y.mjsom):/s2qbqkt t1 ci 38 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark on6cune ue09c3f a meter stick and a -4.0 mC charge is placed at the 50 cccue69 unen03 m mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm ymivh;n mjbv*+h+i j3t8 h9l 1mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is ti1btv ++j*vlh3hm;hmn j 9y 8ihe electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 anusy2q-0 /qk*: sdv5 ;v:lz7khytpcfrd x = 0.20 m. What is the magnt2zr u0v -5qpsc*:/;lk sfd7vq:ky yhitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side az4s-ivk -ult9p q- qq 08oyvk:n(n1n0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of thk(n-l 4iqav qz8uyn-1qn tpv9- o0 ks:e square.

  Consider a square which is 1.0 m on a side. Charges are placedblg9 qddu9i4pab8k. - 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); -g89ilb du 4dbq-k9a .p3.0 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 2; bceet0+w6u bfyffiq+ytw+ s 6(-8os ebg0fit is placed in a uniform electric field. What is the magnieb6f sq8u0wot-ceyf2;wf iby 0(+ g ++ tsfeb6tude of this electric field?

  A particle with a chargu;wf89m;b ,f8 7j t p,jifbnr tkaztw-rn-16ue of 4.0 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 placed i542dhqlbhj8 qnb y70 -/wydesn an electric field of 6000 N/C pointing downward. What charge mustq /5lhedyhs4qwn08bb2-d7j y be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge o13w i+jsovc odq36 c f32eu2eohqu3;s ,6xyhvf -2.00 nC. The ball is placed inside a uniform electric field, and is su,2ix6oc3ce33qf3s us od6 evw ;jyvhoh+qu2 1 spended 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 y 2q6kah raq*4the magnitude of the electric field 5.0 cm from the sphere'yqh2rq6* k 4aas surface?

  A metal sphere of radius 2.0 cm carries a charge ozksado/v sm5v38gt- z5k+ /dtf 3.0 mC. What is the electric fiet ao dzk/3/-vgs+tsd 585vzkmld 6.0 cm from the center of the sphere?