State the law of conservation of electric charge.i+h2m 6s fteg7 pc +da:kfa.b.

  Is it possible for two negative charges to attracui5c(cvdgsb q/o 7e63t each other?

  Is it possible for a positive and a negative charge to ataos0;w qg s f*-*ag v:zv7dqb8tract each other?

  A glass rod is rubbed with a piece of silkai9yxba/3i, c . During the process the glass rod acquires a positive charge and the sila, a/3bi9x cyik

  A proton carries a

  The model of the atom showsb jsnkhcg5a6o:0 .n,z a

  A neutral atom always h6nd*+ ymkscp9as

  An atom has more electrons than protons. The atom iswnek b r9: hrfz44ef9;

  Materials in which the electrons are boun4:pypvjoq6 tju+d3 z/ d very tightly to the nuclei are referred to 6u/pzq 3t+: opjvd4yj as

  Materials in which the electrons are bound very loosely to the nuclei and c32oyoc. t a+gi wu4zl.an move about freely within thi +g.oywzau3ot4 cl 2.e material are referred to as

  A negatively charged rod is brought n6-co4q hb,puzm9x0kv2rdib ,ear one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will b, 6kvzpb 4cxud 0h9bo ,i-rm2qe charged

  Sphere A carries a net positive cf 3etz gzm+5+gzxdry( u9 1;mjharge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is zfz ygmrgt(e+1 u39jx+5d;zm briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope poi r7z6w:s-ioisitively?

  An originally neutral electroscope is briefly2xkd5lzy5 p nh02ds7f touched with a positively charged glass rod. The electrd5n52h x7fdz0s2yp kloscope

  An originally neutral electroscope is groundedwi,qj;;-ou;doi dm9 r briefly while a positively charged glass rod is held near it. After the glass rod is rodq,i;; 9drm w-u;oij emoved, the electroscope

  A positive object touches a neutral electroscope, and the leavesya :d7u.ybe uqas7 b4/ separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leau 7be4au/ybq :.ay7sd ves?

  A large negatively charg4nz3gdp) 2h 7hwcca ky2t:je*ed object is placed 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 firstped2 j chth2gw4z ak7y c)3n:* 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 consta638vuut)f+i:k.oee/ thy wvt nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge iyyvy493 vjffr3d23snad n5 2s s larger in4ya2vjdfr9 ns5233n 3syvy df magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed7v-+/0 k 3zkhu8o8f0 yuzxtp ygt4mec near each other on an insulated table. Which statement best describes the electrostatic force between tkhcm y+ zg0e x3zvtpk4t0u8/y-u 87f ohem?

  Two charged objects attract each other with a certain force. It,ythz:/ +,zsi6htiyy 5un5f f the charges on uyz y itt6ysiz,f+ht 5n:h/,5 both objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forapx4ikt a b6po(ffwnx 3fc3+h38e73cces of F on each other. If the charges are scwh3ci 3e7 fpo 4naf8axb63t3pk x(f+eparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What ha8amx0 -:kd9 rla4rz:g;chbit ppens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to4c; k am0trg:l:9bxra -di hz8 one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.dhl4f+uqxyn7hgt xaj o6 ;:t,z/ jw130 m. What happens to the magnitude of the force on the proton if a seco1yh7 tha:o3wg, j +/tjq6ux;dxnzf l 4nd electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What v n1p 0w4b5uajhappens to the magnitude of the force on the first e10 jn 5v4awpbulectron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What vxwel2 5vt huac,i,/g)u2t:g happens to the size of the force on the proton if the electron is moved 0g2uc,ita gx:lu2e),t /5vh wv.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a secwmr:86 ( ijpo5a e.g 96lak ox,u-hwecond 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 ot6: iwg aphe9a.c-8umr 5e6,(wjo lokx her 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 o he .f2qmy-;dmf an equilateral triangle. When a second charge of +Q is placeded.2- fy;hmmq 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 vector48b1 i(ed yzst?

  At twice the distance from a point chary5p 07z xk6wav+m5 za-8uhflhge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and positi,ncqsjx/5j d.h2rc eg:i6q* gve charge along the line joining the cjjc ,ehng2x*qd 6q./ :gs i5rtwo charges?

  Is it possible to have a zero electric field value between two positive charges : z y+5+usp2de,b fdbv*j)tryalong the linddpeyfu z2 +r*b 5j)+:,btysve joining the two charges?

  Electric field lines near psitive point cha+zo, mlsm(8z x/ nn4.nxss 8borges

  The electric field shok ) xy8pnx47a kfby+-qwn

  Can electric field lines intersect in free space?xj+ 0skk 2sni; 5h ;fdn34bb8 fs-mune

  A solid block of metal in electro r+ 2cyb 4pd wng/ve(+3kwlgk.d1fu4ustatic equilibrium is placed in a uniform electric field. Give a statementyc++n.( kbr4 2g/3u1vlwg4pwfu k edd concerning the electric field in the block's interior.

  If a solid metal sphere and a holh(nzhtnqf-q:oswc n:1(vo hbpu4.9-g, l mm*low metal sphere of equal diameters are each given the same charge, the electric field (E) mig9o-(qu, zcqh-1 m.fps4 * ln n:(ho t:vwhnbmdway between the center and the surface is

  A cubic block of aluminum rests on a wooden tabl5k*j4 (e jj duz0gienyi37re5e in a region where a uniform electric field is directed straighn5rekg* 05y j3jji7z(iu d4eet upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equillky5 b v9n- qmw)*isuj:h8h6zibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is gr/edtjlgl+6n9 ,c eto 9ounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sl9,6 t lj9+cetngod/ephere has

State three properties o 6jd(age4 5efnf conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electr(fabfsik r)uke*:. i *on 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 net5 uf )nv9(.i 3pflvrxe charge of +2.00 mC. How many more protons than electrons does (ervul pfvxif953n.) this piece of plastic have?

  What is the charge on 1 kg om8s7got i8 ,rt 43w qubxq9bo1f protons?

  An atomic nucleus has au(tg)q4rrg6c0 w*a w66ixuu j charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5s5dyabz, 315bvk do1ab n g,4p cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betbya45gdo1b1ans b,p3 dv5k ,z ween them?

  A 1.0-C charge is 15 m fb .;hn/e6uycm7we 8bi rom a second charge, and the force between them is 1.0 N. What is the magnitude oi;b bumenc y.7we/ h86f the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart d2, i-g9rc+t+dga4fmq qdyc5 are they?

  The force between a pgxs jb/)46y.od b9yvee6i, m $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, in1 r4x jtl2msvbbbah7); e ne(7itially 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between(abejl4)r 7;shmxv 72t 1bbn e them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The firs.cdxdpt*st 5hfg -h89t 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- gttds9*.h5cp8 xhd f force which acts on the charge at the origin?

  Three point charges are placed ontuk+9uy c (ul;.b t58yxny7kw the 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 magnitu 8 twcy7;(lk5xyy uu+.b u9tnkde and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following poa9xr zoo.uz yxc2j2m-t-t.eo 7f 36o nsitions: 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 magnxyotm62j t f-29c zroo -.o3.a nzx7euitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the c2rz9rkxb5;wo enter 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 trk;5rx b 92owzhe lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, s6hgi-p,n zd- 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Wha-pgzdsi nh,6-t 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 nC is at (0, 0.10 m); Q3 aqvng21sm 2 ypex 0;f.v/j;in= 5.0 nC is at (0, 0). What is the dire qsyf; 12nnp0jx2vi.geva/;m ction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the v+ekq, (: f,h/xih;eiookz g6qertices of an equilateral triangle which measures 30 cm on/+xkzi ef o:iohe ,(6h kqq,g; 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 what7jf 4*,6v 0 b1uinwrnux yewa) point, on a line between the two charges, would it be possible1ax 4yriujvuew, nwf n*06)7b 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.rc- au :q:kxgfivp-i9 91q0uw4j;b qv 0-C charge is at x = 4.0 m. Where on the x-axis can aq4-9u1- aik:bwxcfq:0 v rgi9p vuj;q third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Whe4- d,)hkcw2 *:xcb 6taeeqz ztre can a third positive charge +q be placed so t: exqkchetc,a*dzw6b -42)t zhat the force on it is zero?

  A copper penny has a mass.o r,hs+lmtz1/y /12 vxnqlk 0lbsi0v of 3.0 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 of gravity by the attraction of a o/fn1z os hw1+qnb50pfixed proton some distance abov ow15 bsnpq+1zf /o0hne it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threadm7q n5upf* 1 wy(qqmv7s which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the qypv7(qm 5* 7mn1qfuwangle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is th*mv s.vw ot(ajov +zpol4a p79c8*uq (e magnitude of the electric field at a distance of 1.0 m fj vasw u7 v4a ( tc9q.o*pzo(*pv+lmo8rom the nucleus?

  What are the magnitude and direction of the electric field at a distacue o6 a w4zn*wk42q4wnce of 1.50 m from a 50.0-nC co azwnwce42k464 w*quharge?

  A 5.0-C charge is 10 m from a small test charge. What is.o/ oz )lmqale: f ,xundl(: )cawmu41 the magnitude of the electric field at thlnd /xmf4uoll 1.)(amaq oce:z):,w ue location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction obo wkf5vm *7mnq89u.v/o8n fn f the electric field?88v/.9o*mu5n 7m vn wf qfkbon

  A 5.0-C charge is 10 m from a small test charge. What is the ji*p2r 8ewn;gmagnitude of the force experienced byg ;rn8*2 eiwpj a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are sepa8qcpfdix32 5. zsua)n rated by a distance of 4.0 m. What is the electric field inp )f2 cua8s.zq53 dxat a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter s+asruw:ku 1e;kz u; w3tick and a -4.0 mC charge is placed at the 50 cm mark. What is th3u:u;s kzreaww1 k;u+e electric field at the 30 cm mark?

  A 5.0-mC charge is placed at tdtao7a k(m v.,he 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. Aoad,(km .vat 7t 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 aemad6in s9d 3(t x = 0 and x = 0.20 m. Whatme3dd6(n sa9i is the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squaqhebj-2e -7w (knq:dj re of side 0.50 m. The last cornqheebjjkq -2:- d(w7ner is occupied 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. Cha98 gs gw62. svzup1dtdrges 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 a9sdtg 8 zp21wv gu.s6dt (0, 1). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charuj/1rzcg1 9xr ge of 5.0 mC when it is placed in a uniform electric field. What iu1 r1xc grj/9zs the magnitude of this electric field?

  A particle with a charge of 4.0 -ynqu/e1lea5x4fdw gxe 5.;m 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 mqv/ 2sn3 6s-jwqsb* yvass 0.120 g is placed in an electric field of 6000 N/C points6sqbn-/2jvq*w y3vsing downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g m r8c3 4dfvo2gcarries a charge of -2.00 nC. The ball is placed inside2 fov3rc4d8g m a uniform 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 c r/ay94tphun9 fs -pg+m carries a charge of +2.0 mC. What is the magnitudtsh / ppn9 4y+au9f-rge of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wvoa:/985nt ,wi bwdmjhat is the electric field 6.0 cmm w:b,d9jvai8nw /t5o from the center of the sphere?