State the law of conservat.h mm2okv/81 cj5bnbvion of electric charge.

  Is it possible for two negative chamx.;yoap u8* ohb a 9oj-;/acfrges to attract each other?

  Is it possible for a positive and a negative chaz++ qnybmuj q, 5wu(ba0k4z 4srge to attract each other?

  A glass rod is rubbed with a piece,mr j4m6sr.hg ;t58duaajq. s of silk. During the process the glass rod acquires a positive chaq;5 arm sh.6d8mgt4jj.us,ar rge and the silk

  A proton carries a

  The model of the atom s koco alj; 63;jbzp;(rw x3hefq 1g:w2hows a

  A neutral atom alwayd 8geic)sg:; ns has

  An atom has more electrons than protons. The f 2 hup1h;s ug9gi1z. *o8goqeatom is

  Materials in which the electrons are bound very tightly to: )-b6fmdc9j idyp3ncl70e vd the nuclei are referred to asyb-93jp 6c7i0:cl)fne ddvdm

  Materials in which the electrons aev82 ,a o4eetcre bound very loosely to the nuclei and can move about freely wi tee8v,aec4 2othin the material are referred to as

  A negatively charged rod is brought near one end oeb;lo 5gj8) nnf an uncharged metal bar. The end of the metal bar farthest from the charged 5l;jo) ng8n berod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They az-6zkc u(kbr:zt mx46re placed near each other on an insulated table. Sphere B is (xm rzbtc4z -kkz6u 6:briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electro,1:9lb uu7vynwf s e0hkmxi* -scope positively?

  An originally neutral electroscope is brieje ge:+)-f hqyfly touched with a positively charged glass rod. They +e: q)-jfehg electroscope

  An originally neutral electroscope isu, fg dbcdg2*) grounded briefly while a positively charged glass rod is held near it. After the glass rod is removg,)* d2fdbgc ued, the electroscope

  A positive object touches a neutral elec .kt-hb ij*)nhtroscope, and the leaves separate. Then a negati n)*ih-jt.k hbve object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively chargt1 w5. gvdvaz2ed object is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A vz2gwd v1a .5tsecond 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 constantu mw5g16z z-.aa 8zgid $k$, which appears in Coulomb's law?

  Two charged objects are y fkgtzc,(vuqn h z.)7d2z8s2 separated by a distance d. The first charge is larger in magnitude than thz v7 282 qstn.fyhz(cz), kudge second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near ela3-n3gv5b tmach other on an insulated table. Which statement best describes the electro3vg 3tnmal5b-static force between them?

  Two charged objects attract each other wjw8gn2 63w5qvgwr2 a dith a certain force. If the charges on both objects are doubl3gr 6q2w8wvwnagjd5 2ed with no change in separation, the force between them

  Two charges are separated by a apy 8m,v4 j;7u61f -ohhgmkqu distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the neughj;q7pvhf8 ,1yo4 ua- m6km w mutual forces?

  Two charged objects attract each other with a force F. Wb*)n lu3x ccc6hat happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance betwee c xb*u6cn)lc3n 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. What 5 q) ,lwka/es)n.dp ms0j,;orngu) ghhappens to the magnitude of the force on the proton if a second electron is),rge0nhos j5g./;) u)ak d wplqsnm, placed next to the first electron?

  An electron and a proton are separated by a diwm:zv 7-aw m6mstance of 1.0 m. What happens to the magnitude of a 6wvm 7w:-zmmthe force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a dir5- - olcl e kv;baovhq(o2a5b+i:f0 istance of 1.0 m. What happens to the siolkl2bra:ca i ; v-o 5vq-+05of b(iehze of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is +()u2f hmdgdfc g/* ovf,j-wpplaced 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 -Q are placed at the other tcvogm )-f h(jpudf/+,d2f* gwhree 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 triangle. Wk3d;cw4)u vj1 b5 a cgxqk+f4bhen 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 j3xgav ;4c1f qwbd54)k ku+bc +Q placed at one of the other vertices?

  Which of the following is nok h.0.l 5h+/+(i kmykak zfbllt a vector?

  At twice the distance from a point charge, the strength of the electric 79z dq58cwo:oal, 1( nt mxjyinx 1w6ffield

  Is it possible to have a zero electric frqt)r+ 6t;noi3 2dmv5p/rqbr ield value between a negative and positive charge along the line joinrrq/m5to3r +bq6 prvti; ) n2ding the two charges?

  Is it possible to have a z t)d yj,..s9g: tnombvero electric field value between two positive charges along the linmvt)d. oy.gst,j 9:b ne joining the two charges?

  Electric field lines near pbg 7*7fi-l uhd c7zz0jsitive point charges

  The electric field sho*-f( y -pmcw ly.34ydyaos z8mwn

  Can electric field lines intersect in f 3:prsav5p3eoree space?

  A solid block of metal in electrostatic equilibrium is placed in a4t:u70 u fzjm5 ktisv( uniform electric field. Give a statement concernis fvm: 0jzk57tutu4(i ng the electric field in the block's interior.

  If a solid metal sphere and a hollow metalx h; dwqi8i09n sphere of equal diameters are each given the same charge, the electric field (E) midwayhndi i wq980x; between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regioned(i(3 e)jec x where a uniform electric field is directed straight upward. What can b)x( e3ce(jdiee said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equil2ni,44gz pqkg8myy/ nix3m8( 1xzyszibrium near an electric charge

  A positive point charge is enclosed in a)8k5bd8 3 p tvh4soelp hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the5 lp bk)edos8hp4v 8t3 hollow sphere has

State three propertiebaxp8fa9o 25 itm)e+gs of conductors in static equilibrium.

State Gauss's law.

  The charge carried byzeh3- 7oiltxxe lwau)7 73tq4 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 zha)vt 6 ,ier/gl :kl6net charge of +2.00 mC. How many more protons than electrons does this piece of z6 l )6alr ,tevk:gi/hplastic have?

  What is the charge on 1 kg of protonbv a47a1pjf3mqtl/s n-+fi+ j s?

  An atomic nucleus has a charge k9 j94owwp f0p2bu6j pof $+40e$. 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,8 hg9pihvv5y-01ri vu unfg15 respectively. What is thg1f1 p v-yui58v hg0u9 5ivnrhe magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between thu8p,e gl0*.0 oepkrp aem is 1.0 N. What is tho0p eapg,. 8lrep *0uke magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How bq76 y)v-ulb cfar apart are they?

  The force between a cohn2 l 7f/y;x$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 294x dwzsrrmm60/b3. jir q.l8bkt2 sn.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric b kdmjr8bq.sr/430z9x 2. r6 nwtislmforce between them?

  Three identical point charges of 2.0 mC are placed on the x-axis.pdsp r 7nki01+ 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 magnitudedk+prsi 017np and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on o+v v0q(ub u;wthe x-axis. A charge 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 are the magnitude and direction of the electros(v;wbq+0 vuuotatic force which acts on the charge at the origin?

  Three point charges are lcra;(nj2 hfq/ brkea++tw;,aocated 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. What is the magnitu ;q + 2renwah;b+,(cj/t aarkfde of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center ohqm0:j sz6c(cd2a k-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 lower-left cor 6hsc2oa km qjzc0:(d-ner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1. 0sl pg-s.pe qbg;6yc90 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on ths0pgsc pq;9le gb.6- ye 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 7cc y1qo3w fn,0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net forcfo1 w ,ccqn37ye on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equ e6rz4 .qxwuo2ilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which aqxwe .6 ou4rz2cts on any one of the charges?

  Consider point charges of +Q an0/4 o5a-.pelqhld ue vd +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting-dhqv a lp/54uoe.le 0 on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is 5t+a: inbas;b:f nc8ocn 3ea3at x = 4.0 m. Where on the x- 5f:n s3tc boc ;eb+naa8:ni3aaxis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and ch *sc )ofg- ed.+ex 2nnlsrl4*marge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force r-l4o+g2em)s d** ncex lnfs.on it is zero?

  A copper penny has a mass of 3;lv3 jdl(6wf2kx0ninxeaxjx2yb6, jh 8e3. q.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 force o8/u gs-; p/jpe8z hby7voj- csf gravity by the attraction of a fixed protoy/-o;zbgce s 8jphjp -/8u7v sn some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common polxt upp ue:)m-4. 7mbpaswq0+int by nonconducting threads which are 30 cm long. Both are given identical charges, an:.wlx p)mq+0pumabpt-7u 4sed 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 electri(59g-yg.f 8dhood yueh8s6dic field a8hyfgog u -.idy9deo ds5 (h86t a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a d mu jki2,np*h3vl:p+b istance of 1.50 m from a 50.0-nC charge:h 2+pmp3vinbuj* lk,?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of th6k 7 mweji:,nke electric field at the location of the test ch6k:i w,nk7jemarge?

  A 5.0-C charge is 10 m from a9wc tx kg i.9jm/fw4s7 small test charge. What is the direction of the electrim4j7tcx sk/w9wigf. 9c field?

  A 5.0-C charge is 10 m from a ymk8ce1a-j 6xsmall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the locat18ajem y 6xk-cion of the test charge?

  Two point charges eacj e4e2 32mqj6g h.r v0ab9zmavh have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electrhzaaremjj9e6 vg4v2 3q2m.0bic field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a met2era gcg.w,u;er stick and a -4.0 mC charge is placed at theg,; 2cuaeg wr. 50 cm mark. What is the electric 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 chax 7th+4nhqesszr(8b13ob t1h rge is placed at the 50 cm mark. At what point on a line + 3zths7hsbh bo4e1n 8(q1rx tjoining the two charges is the electric field zero?

  Two point charges of +3.0 mC andsz j t ty01bzj),7k+gy -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fielt0 kbt+yg1 j7,y zzj)sd at the point midway between them?

  Three 3.0 mC charges are at the three corne1fsave-s+qe4 u1 a0 )3asb hybi/p8qdrs of a square of side 0.50 m. The last corner is occupiese 11i0deb -q /sahp asu43)fq+ybv8 ad by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at;j585e+yk4sx- l1 grr kfkano 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 magni+fs k5 k-orrlk58 y 1gaex;4njtude 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 in b vt5hzok7 4(ra uniform electric field. What is the magnitude of this electrhov(bt4r7 kz5 ic field?

  A particle with a charge of 4.0 mC has a di,4i7jp o+ femass 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 anx2laujn5 f s/.m:fj(y electric field of 6000 N/C pointing downward. What charge must be placedmf:(yfj2aj n5.ulx/s on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is o j eo6z, 1h7klvpy0w)ef0f(vplaced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electr0vy1p6vkf oow) 7h0je ,zf l(eic field?

  A metal sphere of radius 10 cm carries a charge of +2.0i.3 z82;jj(wmxcwj m q mC. What is the magnitude of the electric field 5.0 cm from the spm.mzc j w(jixw28j;3qhere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What 3n*zkyq 4cd4i5u d k*lis the electric field 6.0 cm from the center of d 4n*4 dl ukz*i53kcqythe sphere?