State the law of conservation of electric chaa2qo 1i lu, pb :n5j-x,:h6.vf gonpecrge.

  Is it possible for two negative charges to attd2d /q kagcb5w1 n.8w3plr,stract each other?

  Is it possible for a positive and a negative cha5u y3jdhf5iujo*xmc3g o14 -ah . v6jurge to attract each other?

  A glass rod is rubbed x r8s0b mh.o-gwith a piece of silk. During the process the glass rod acquire xh0so -rg8.bms a positive charge and the silk

  A proton carries a

  The model of the atom sa6(s 2vv 98pu*jz8c u2goi4-rq t aiduhows a

  A neutral atom always hasc lq*6 5ypyx9j

  An atom has more electrons than protons. The atom hv(9c:oh,sluj 6kb. m is

  Materials in which the electrons are bound very tightly:zvl0k7xve sdf ub(7 - to the nuclei are referred to asbv- kx0se z: (7ldfvu7

  Materials in which the el:nam 02-d6; bf+ap j plrlbexrn8x6-dectrons are bound very loosely to the nuclei and can move a bd pl--xp86jl+0an;r2 nmra d f:6xbebout freely within the material are referred to as

  A negatively charged rod is brought near one end ocz qd7xwsflz3 0)y p+1f an uncharged metal bar. The end of the metal bar fartx q13c0pl w szz+y7fd)hest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They arew zhe(p 5js4m/ placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. zhwmj/e 4p(5 s Which statement is correct?

  How can a negatively charged rod charge an electroscopew7-5i .iekehbgix-o fd6f(, m positively?

  An originally neutral electrosugztx ge89:f7hbe j ;4r+yhj e i0v+8qcope is briefly touched with a positively charged brtyxg f4z eu90h7 +8jvg;8i e q:hj+eglass rod. The electroscope

  An originally neutral electroscope is grounded briefly whilacv4xjvbt- +om81 l :se a positively charged glass rod is held 8 -vjxcm1bsta: 4o+lvnear it. After the glass rod is removed, the electroscope

  A positive object touches a neutral els t0z89yscy c2ectroscope, and the leaves separate. Then a negative object is brought near the ely2s9c8zc t sy0ectroscope, but does not touch it. What happens to the leaves?

  A large negatively cha:r x /ed+kqg5ecva0 j/rged 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 first ball, strikes the first ball, and stops. The first ball rolls forward, but does not toudg/j:5+q/x rkvec 0aech 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 constant4qij62: rrag qr +abj4 $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fir923g ;h mppnuzst charge is larger in magnitude than the sn 2 93mup;pzhgecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed necr rr+.uqb.u /ar each other on an insulaterr+c.bu./rqu d table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If tvaaoup go85 1t3z ww3:he charges on both obvauwz53t oo3p1ga8w: jects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual at5c0es e lt x2wyfrhigcb 6d/l-me.5e)x(jt. 2 tractive forces of F on each other. If the charges are separated by a distance of d/3r (5i/fx0.bxethcl sd6 ).- 2c5megeywtje l2, what are the new mutual forces?

  Two charged objects attract each /yrixj3u +ct ve1 a+n1other with a force 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 redu/ta3 1jyr+xvi 1+nuec ced to one-fourth its original value? The force is now equal to

  An electron and a proton u),jctmv* r9)qcuy q1 are separated by a distance of 1.0 m. What happens to the magnitude of the ft,qvy ru*cu j q)1)9cmorce on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. 7r26fld rr+ +p)shtspWhat happens to the magnitude of the force on the first electro2tf6lp s+hrrd p+7r s)n if a second electron is placed next to the proton?

  An electron and a protf-bbdh 7ll33t4b4la son are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is mo7flb3-ad3tb4 4b lshlved 0.50 m closer to the proton?

  A point charge of +Q is placeiq , e/ bff9pm+,hxh7 6rzfu1ed at the center of a square. When a second point charge of -Q is placed at one of the square's corners, it is observehb6, 7mfe f+,rzhi e f/1pqxu9d 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 square?

  A point charge of +Q is placed at the centroidl4i7mm48e+smiio 7iw of an equilateral triangle. When a second ch4i8iw mmemiio7+ 4l7 sarge 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 vx 8-26i0t/s u b-sybvu l5zcbeector?

  At twice the distance from a point charge, the si s-+ gb olii1w-*t2ootrength of the electric field

  Is it possible to have a zero electric field value between a nuxprmk /92i xq,lc7/oegative and positive charge along the li 7uxmc,ir pxo k//lq92ne joining the two charges?

  Is it possible to have a ;fl(zxzsp (u 6zero electric field value between two positive charges along the lin6l;fsx(u(p zz e joining the two charges?

  Electric field lines near ps+pgwfh h2a9gc,j:be. z8+ygg itive point charges

  The electric field shown tvw.yqh *7j,s -cr1ugct/isnez,t-,

  Can electric field linesqanjd 0: ynf697qxmic1 ;lx(m intersect in free space?

  A solid block of metal iv4y gcq4tf(3y n electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the elycq(gvy f3 t44ectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each9f(e o3hb8 u.lmh8q194y5ce h biolg w given the same chbcqfy489l.9i o3l(meh 1oh 5 w8bughe arge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum restoaeq4;;s0etbu n,ub*i t c, m0s on a wooden table in a region where a uniform electric field is directed straight upu;bqb a 0,0,ms*titc uee n;o4ward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium )ngu fx9x ,:b4yu:pxunear an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is 4m*6m7.kjew ujk(d3 1s c 0jrlq-xhyfgrounded. As compared to the case without the hollow sphere, the electric 0k(hecw-rlmyd.xj3k1q*6m47fs jju field at a point directly above the hollow sphere has

State three properties :qg czmd u:md+k 7tn0-of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one ct.ng1yg(r jp7mgu81electron 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)gg2ukyo6cc: w zh v+*y more protons than ele2ckw v+) 6 uyo*gcgz:hctrons does this piece of plastic have?

  What is the charge on 1 kg of protol5 efl, lgzt+k8050qjhwxs m 4ns?

  An atomic nucleus has a charge zt:3 nkab,8kxcx pa0 6of $+40e$. 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 mCwtlh73 4u1rrj/3tg xb , respectively. What is the magnitude of the electric fx jrg3u wht/4l1tb73rorce between them?

  A 1.0-C charge is 15 m from a segpb z: vg9,otp/-5tpq0q 5k kkcond charge, and the force between them is 1.0 N. What is th0k9kkzgb p,:tto-v q q/ 5g5ppe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N.2hv)x(nfkb5 xnw. b8s How far apart are they?

  The force between a no kv;ps ,ejh d gxnxww7;,849$30 \; mC$ 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 /,pv8ngclk 9 vidw,)f1.0-N force. If they are moved to a new separation of 8.0 c8nvcvf)9 gi, kl ,w/pdm, what is the electric force between them?

  Three identical point charges of 25bqik* g bd:b+0x5wto 6ul)y b.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is :t*w0ibuodbl)b 6xgbq55+kyat 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 ,2 m /c69biguceil3tz charge of +2.0 mC is placed at the origin,/z,gl 3ici2t6 ce9mub -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 charge at the origin?

  Three point charges are rb,pi i)v 3 hjmegumkx36i-sf f;4b 2l.lb68ylocated 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 magnitude of the force on b3-;heur fkgy8bix2)i,ll 4 j i 6sm63m .pfvbthe 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second pcl/1 x,ji.x zq0l*semm6dv.h39 u p nioint 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 ofcjq1,.pi emx / msul90.hvzxn*d3i6l 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 neu02, r -ecfysC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC chargersyef2 -e,c0 u?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC;b-uob*5jxdqsn ,c(zcs, e :r is at (0, 0).qec 5c, j,b-bzunr xsods:;*( What is the direction of the net force on the 5.0 nC charge?

  Three identical char s2 r obbszvi/t9x.s,51/nmyg ges of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elecbox2 /s1 nti5/ms.bg,9 yvsz rtrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +d)ne6y.uy/ 5k m ft 162uvudrd8sp a9y4Q, which are separated by 3.0 m. At what point, on a lindye f6 p1r9) 8vynaud5s/k .mudu26tye between the two 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 =rk .7lltmth-r4 3;htx 4.0 m. Where on the x-axis can a third charge .thhlr kl-t tmr7;34xbe placed so the net force on it is zero?

  Charge +2q is placed at the or51 p zxoi *ay2jmzx8crg9jy.vsu-:o, igin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the fos9 2vxa c 8yj* 1iz ormjo5-y.upg,x:zrce on it is zero?

  A copper penny has a mass of 3.0 g. A tot/bs /5v 506dygrn cfyyal 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 a- whocre 5lax2o 8g:,fsof-+ by the attraction of a fixed proton some distacgw+xls5 ,2 erfooha8- :af- once above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threadspw hdxy (5(1z o1yz4vx which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the anx( 4yxy1zz(w51 hpdvo gle 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 magnitu 078ulpl,4/ wbgjfjg jde of the electric field at a dj g,f lp8j/gujwl40 b7istance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distancec;rlatc*o5p/0 s ;wv f pk.y,g of 1.50 m from a 50.0rccy0;pp5,s*g v;/a f.wtk o l-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is p iz .u)0iir:kthe magnitude of the electric field at the location of the te p:z.0iii rk)ust charge?

  A 5.0-C charge is 10 m from a small test charge. What is theska*/a . edh2l direction of the electric fiel de.ah a2l*sk/d?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude oqz m*-(c,iqem f the force experiee(q *- qi,czmmnced by 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 loboo+q+crq,ap7 o a8+ x l(z3w0qp k4separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges?k(pqxoc +l la8q7o4 o+q3w0p+r,aoz b

  A 5.0-mC charge is placed at the 0 cm mark of a meter stik i:xcx+/u4oyck and a -4.0 mC charge is placed at the 50 cm mark. What is the eli4+k:yxc u x/oectric 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 ctuj2v pm7.pa .harge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zerj2a..vt u mp7po?

  Two point charges of +3.0nhdxk (hp93 5r) 2ni3c dimv(v mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitudedni5) kc23 9v rmndh(iv3hp (x of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cornerp/-q ew.6gaszs of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the centes gp- wq/aez6.r of the square.

  Consider a square which is 1.0 m on a side. -h 9aez4i6+s;ru 5ql juk1bde Charges are placed at the corners of the er;uq9 1zjhs+-5l4 ku6iaedb 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 at the square's center?

  A force of 10 N acts on a charge of 5.0 w lxol hkats 042 f+ei.e(:a2,yuklinc(,,iymC when it is placed in a uniform electric field. What is the magnitude of thisily2lh .f eys,k2,t0i n4ca(k +eolx(:wua,i electric field?

  A particle with a charge of; 7g9nqnt(;edr vg8wc 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 mhpbv5al 8*;mwn02q fis placed in an electric field of 6000 N/C pointing downward. What charge must be lq8n v;pfmhm 02 5a*wbplaced on the ball for it to be suspended?

  A foam ball of mass 0.150.rn w.hh0za x) g carries 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 a a hhn0)zr.xw.nd direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of + ,6l/yb2cy5dbs3 qnwp b,+fwu2.0 mC. What is the magnitude of the electric field 5.0 cm from t,6f qu3b,ywsblbcd5/ 2w +pyn he sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC.o*x/5iuhnvjo+tsh-mp f9p n+dz u: +, What is the electric field 6.0 cm i+htsmojn,vu*:p-u 95zp n+ x f+hd o/from the center of the sphere?