State the law of conservation of ele zkln 11nus/u7-, m,nurmj r)rctric charge.

  Is it possible for two negati/v3 dfy6gn8y:r0r9i*i rid yy ve charges to attract each other?

  Is it possible for a positive awzfx6p6xt g9t o)gx)ks9 q 540x b1trpnd a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the pr,(e6f gzr.lr:dy7g j iocess the glass rod acquires a positive charge and tg frrz6:7(yg .li ,djehe silk

  A proton carries a

  The model of the atom s7ab x xga7+7qyhows a

  A neutral atom alwayn1-+2mrkxz wbdar / u;s has

  An atom has more electrons than prot- 5 rr0ivsd y rn78bs:1ndyn8uons. The atom is

  Materials in which the electrons m, p z/skec;sogn g17;are bound very tightly to the nuclei are referre ocgkez 1s, ;;pmgsn7/d to as

  Materials in which the electrons are v5 wi;e:* u5tfv tbkwl54bs2wbound very loosely to the nuclei and can move about freely within the mab tv52wu :lbs*vf5w it;k5 ew4terial are referred to as

  A negatively charged rod is brought near onem+n7gibv 8g(xilwb igw5q/ -, end of an uncharged metal bar. The end of the metal bar farthest from the charged rob/i,xg(nlg v w -wi+ 8m5bgqi7d will be charged

  Sphere A carries a net positive charge, andr:guhi,zvtxf .( x0 fudwo29 / sphere B is neutral. They are placed near eachdg:v2 oxu9f,/.i zwf uhr0(tx other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope po f- g7jpo 5aoov:2pwl2sitively?

  An originally neutral electroscope isz/bhmf6oh9m8m( +f mq briefly touched with a positively charged glass roqm ozmm69(hf8mf+ /h bd. The electroscope

  An originally neutral electroscope is grounded briefly while a posittkw5r e2j :a1hv;bn- qively charged glass rod is held near it. Aften 1;w-akhv eqr5j :t2br the glass rod is removed, the electroscope

  A positive object touches a neut1m6si3 2eae83u ldpqe ral electroscope, and the leaves separate. Then a negauq3dp eml6e 12s e83iative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is i/ e5n9xuojqzfa:q j,+16yl jwo3 5mvplaced 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 bal5/j oj5w :q1+ymjleinu,q9x 6 fao3 vzl, 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 constab+,zq9na fzh -hov/g* nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger i,r/*w3xgu aen 6 ()qqvtg*t msn magnitude than the qt n/xs )*em3q (t vwg6*aru,gsecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eac3. d6*a qp hcab) kx373 j7nwao5qipogh other on an insulated table. Which statement best describes the electrostatic force betweexjq3b app77 a*i 5o wc)3nq.k 6gdah3on them?

  Two charged objects attract each other with h ve+d,2sp-i- yjz8b ta certain force. If the charges on both objects are doubled with no change in separation, th+e-,zh8t j-bd2y s ipve force between them

  Two charges are separated by a distancejcbo (:q7 8vie d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are tejv cbq8o:i (7he new mutual forces?

  Two charged objects attract each other ihk,exu)t/v h4( * vhcwith a force F. What happens to the force between them if t(h,u/x ih v)c h4*vekone 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 equal to

  An electron and a proton are separated byt vkso5jx/n8 3 a distance of 1.0 m. What happens to the magnitudetko 3n vx8sj/5 of the force 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. m/buwtq9k 5hf07-v ztWhat happens to the magnitude of the force ohb7f 0 v/mqkt-zw9 tu5n the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distanc r*k;6;swj /aumw1blse of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer k;buw *wmrs j;as6 /l1to the proton?

  A point charge of +Q is placed at thrm)/2eo2fdgt )ar8cre 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 electrostaormt2)rr g) fce2ad/8tic 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 centrm 47hwa m( k0:40 r3vl6wbgliygwga8 loid of an equilateral triangle. When a second charge of +Ql k0r3ai ggl8ag( b7wv06wmmh4:4ylw 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 vector7rppz 2*1xras?

  At twice the distance from a point charge, thenk e(5i xnse58 strength of the electric field

  Is it possible to have a zero electric field valnc4zdw, 0o: mtue between a negative and positive charge along the line joiningom: 0t w,4dznc the two charges?

  Is it possible to have a zero electric field value between two positive chargetae:q v7 fc+o)s alo cefvq)ao:t+7ng the line joining the two charges?

  Electric field lines near psit13. ( m3g0wq 95blnefgxqsfmuive point charges

  The electric field showng fv)g4;sqv 4sa5 sped 2l3hdnu y p0.8+;vzpr

  Can electric field lines intersect in free+ eae,( lq9+ bop(qe,a +uap4u vn-zbm space?

  A solid block of metal in electrostatic equilibrium is placed in a unifh2okw h j,5ra*xi l,j4orm electricho2hkxw,jji r,la 4* 5 field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diametersb s;j;hl3kgt/ are each given the same charge, the electric field (E) midway between the ce 3;j/k ts;bglhnter and the surface is

  A cubic block of aluminum rests on a wooden table in a regions4b ql ;r0n7wk where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surface?sl ;r0qnkbw4 7

  If a conductor is in electrostatic equilib32,ts fi ub 0an;kkla0rium near an electric charge

  A positive point charge is enclosed in a hollowhi dju9 y/i6e 2mldd,( metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow , ilhj id(/ed6y29ud msphere has

State three properties of conductors in static equilibrium.rkx 0xq 5p9el70d 0nwa

State Gauss's law.

  The charge carried by one electroe4yi mmk3qf (sx7l 3zj3x5jv(n 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 ch l*pd-co6j,ugr)nnq1hluc 6 )arge of +2.00 mC. How many more protons than electrons does this piece ogl) rucnd nlp61qj *hc -),ou6f plastic have?

  What is the charge on 1 yg/ qt/;trafna* tr.0 kg of protons?

  An atomic nucleus has a char8)7ev; /sxwaaslkbz 2ge 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 zh x e jpd s.k 5ortmbv0w*s6hv:t:2 1n(2sb,cmC, respectively. What is the magnit bxts0 :16rbc:es2jv* hvo m k5 ,.zstp2(nhwdude of the electric force between them?

  A 1.0-C charge is 15 1v5c:x d g(mdnm from a second charge, and the force between them is 1.0 N. What is the magnic5d1d(mng:xv tude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. H0enu 7dc 2iiyl /4rrq)ow far apart are they?

  The force between a fkgb8cx :s(98ie;ah g$30 \; mC$ 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-N +;huyfrt+ :fg, tyhl0b7nj-rforce. If they are moved to blyr n+h0-h;7:fjgt u+,r tfya new separation of 8.0 cm, what is the electric force between them?

  Three identical point chhy aeg51 zde *7*bjtb*arges of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to th** tya1 eeb*dhz j57bge 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 q ;y jd8sskx.4placed on 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 magnitude and direction of the electrostatic force which acts on the charge at the origin?8jqks x.ds;4y

  Three point charges are located at the following positions: Q1 = 2.00 mC ayhim:8q:. mm bt x = i:ymb.qm:8hm 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 the 3.00-mC charge?

  A point charge of +Q is placed at the cent+dqf p (3nl9nner of a square, and a second point charge of -Q is p+(dnn lqf9pn3laced 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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is zo/xbe:9df /ms vlrz fxg 7bu:wt2398at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What i2ldfmwb:/3x:o/z xz8u9 s9e vtb 7grfs 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); 2+* n,q e/bm ji,zqybmQ3 = 5.0 nC is at (0, 0). What is the directionzi b2mmyqj/+q n b*e,, of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equila07iki.4mhe0k z (zzrz /z.ycd teral triangle which measures 30 cm on a side. What is .70 zy m.ic /eizh4 zzr(kd0zkthe 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. juxx 3fzvqd*;v 4c) djn/eb8v*pr:y 0At 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 on it would v*qvfy /cj0vzxubr8 d *dj e4:3px;)nbe zero?

  A +3.0-C charge is at the origin np1 m ,ak0 yjn6oqsb.c1.1so uand a +9.0-C charge is at x = 4.0 m. Where on the x-axuj6.o .s01q yn cpkn,mso11abis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge.9x aopfmy hfc0w87 t7z7cdr2 -q is placed at x = 2a. Where can a third positive charge +q be placed so that the forcea80c.yto prz7h w 7d97 2xmffc on it is zero?

  A copper penny has a mass of 3.jfv45d0uu 5vz 6cg.ty0 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 p80,7 awnwm gvai,l 1yof a fixed proton some distance above it. How far above thewn ama0g 1lvi, w78,yp electron is the proton?

  Two 0.20-g metal spherlt 7dt4jwi+6 u2sdw/xes are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charg d7ti6/lujw4d+xw ts2es, 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 is the magnitude :cqz0 gra3a7s1 ,ihkj of the electric field at a distance of 1.0 m i k0hsc7g :r 13aj,azqfrom the nucleus?

  What are the magnitude and direction of the electric field at a distfzl cw8 lb7emu .;4oo/ance of 1.50 m from emc;7/uoo 4l8b f. wzla 50.0-nC charge?

  A 5.0-C charge is 10 m from a small 0y(qgt p3 bmz3 w8 6kl-kd.hiftest charge. What is the magnitude of the eyfh33z.klm0-q8wt d6g ib(kp lectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small ggert 94 zb70otest charge. What is the direction of the electrzg09 tr7 egb4oic field?

  A 5.0-C charge is 10 m from a small test charge. What is t;rrl2rs fmv)0he magnitude of the force experienced by a 1.0 nC charge placed at the location of the test0fmsl rv)2r ;r charge?

  Two point charges each have a value of 3.0 C and areirtd:7+ b:jn f separated by a distance of 4.0 m. What is the electric field at a point midway between the two charge::brifjd7+tn s?

  A 5.0-mC charge is placed at xu:mg)b7 +.pj lqawm-the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mqx.majlb) :+p 7 gum-wark. 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 anflf8 zdjp cou7/:+ 4rid a -4.0 mC charge is placed4 uc i :dolf+8jzfpr7/ at the 50 cm mark. At 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 anda w-sun wn*pa,2k+ y7b x = 0.20 m. What is the magnitude of - au,7bak ws+n*2n pywthe electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners *7v sj /zlpz:b+lw/aaof a square of side 0.50 m. The last corner is occupied by a -3.0 mC p/v7/ab sl+*w z:ljz acharge. Find the electric field at the center of the square.

  Consider a square which is 8*8 ilc;thix q1.0 m on a side. Charges 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)h cl;*8 iiqxt8; -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 cr 6m6ca- h i2b7sv7fbcharge of 5.0 mC when it is placed in a uniform electric field. What is 76cb7 ifb r2-mhv6sacthe magnitude of this electric field?

  A particle with a chm-b,pocz (;nfh-p )0yt nij7warge 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 /n;og vsp9zb 9mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball fbovzp/ ;n9gs 9or it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00+w7u)kr( ikk9lft . zc nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction ofc i.k+ (rz)tfu 79wkkl the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0+jnl i() ,sz4lw bm;pd mC. What is the magnitude of the electric field 5, is;l+zb l(m4d)w jnp.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is3 4owjhq7prtbse5g ,* the electric field 6.0 cm from the center of the s rh,getwobjps5q34 7* phere?