State the law of conservation onm s5l amy,d )5a:rm3hf electric charge.

  Is it possible for two negative charges togp2k c3cmrt )o +:9jdw attract each other?

  Is it possible for a positive and a negative charge to attrk :-pt rw io/qv5aak(/act each other?

  A glass rod is rubbed with a piece of silko,n536wozt7sj p qiq9 . During the process the glass rod acquires a osj7wno ,qp 9 5qzt36ipositive charge and the silk

  A proton carries a

  The model of the atoqmfuv,g sf ),3m shows a

  A neutral atom always har*vf 2ox79u , pm7ohe gvu.j)ms

  An atom has more electronon pwz i;qg2. i3w67mfs than protons. The atom is

  Materials in which the electrono :mk h6xq*302pcgg e)s;xxaws are bound very tightly to the nuclei are referred to assp6x 2ow03 x*ekqghca:) x ;gm

  Materials in which the electrons are bound very loosely to the nuclei an6-a kqpms1 j sx(09rmud can move abmaqx 0smprj-6 ks19 (uout freely within the material are referred to as

  A negatively charged rod is brought ne1eh cpm9d yhx t,6r/w7ar one end of an uncharged metal bar. The end ofe,rh/x6 dmhpy tcw719 the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and spheir/9 c6( zal qw dmv7eb(8xi6wre B is neutral. They are placed near each oth (m6ec/8x6zlbawdwr v97 i( qier 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 electrkyk5 (g - ,0 lrfdantek2u8+ososcope positively?

  An originally neutral electroscope is briefly touched with a positid xp:t)oloo4jl8s/ l zaj8d+)q;mg 4cvely charged glass rod. Theaxds4 :l)mqlo4 pc doz8 l8/tgj+;oj) electroscope

  An originally neutral electrosct2bxw6x5 s5ydope is grounded briefly while a positively charged glass r 6t55b yxsdx2wod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, ad2,pyz 3f 2exdnd the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happe,22dyd p3fxzens to the leaves?

  A large negatively char2 )oiscm 2ddp*ged 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 touch the negative object. At no time does either ball touch the negative object. What is the final charge on each ba pi2m2odd*c)s ll?

  Charge is

  What are the units of the Coulomb constant pcjcuym+ r0rb0d0 1z8*ibxn9$k$, which appears in Coulomb's law?

  Two charged objects are separated by a disto8 9j cu4we4yxqcbw5- ance d. The first charge is larger in magnitude than the second ccbq5c9j4oux- e8y4w w harge.

  Sphere A carries a net charge and sphere B is neut ljlb-une m(p:+.rx h6ral. They are placed near each other on an insulated table. Which statement best describes the electrostatic for(b.ju xm+ :lhrnl6p-e ce between them?

  Two charged objects attract eab:dw5vokvj7+8af9 w c ch other with a certain force. If the charges on both objects are doubled with no change98ac:v w ojb7df+vk w5 in separation, the force between them

  Two charges are separated by a distance w o iu69 jz4(a20pt17bo wxwkyd and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forcesp4( ut 69xb woz0wyjwk17io2a?

  Two charged objects attract each other with a force F. What happens to the forcrq- 1 *lci, zi8ti. m.7gflssre 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? rg- s,*8f.cilt7mi.iszqr l1The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What hap)( 5oqfs ys-b4p5cjz apens to the magnitude of the force on the proton if a second electron iyofpq 5 )a5-b j(ssz4cs placed next to the first electron?

  An electron and a proton are separated by a do.*pn+l c)y zhsn3 ra*istance of 1.0 m. What happens to the magnitude of the)3s* r. y+loznphan c* force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a dist/na4y, 1ynuib.soj 7eance of 1.0 m. What happens to the size of the force on the proton if then, a7 1uj.isnyo4/by e electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a seconvbb13m1g o60t6e0m,eh9;t ubxcqwp vd 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 three corners of the square. What is the magnitude of the net electrostatic force actincp10vtx tmb130 6,v woeq;g9hbb6eum g on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral triangle. p07w8a t slmej :f3r4tWhen 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 +Q placed at ones40 w73r tpf jeta:ml8 of the other vertices?

  Which of the following is nogl*azj v:7a,z yustw63(wc6qt a vector?

  At twice the distance from a point charge, the strength of the electrivgcs zo4b1w830* rzd9-e u kza(ix-oac field

  Is it possible to have a zero electric field value between a negatif0zpj2t7zvq:cjyy.- ah z-9jve and positive charge alf0pj:v zy j.yc2 ajt-z97hq- zong the line joining the two charges?

  Is it possible to have t z 2 g 1kp safdtvdwz68zb7eh,04mp)5a zero electric field value between two positive charges along the line joindv6zz m bt 7f a)h2wpgt481dzek p,5s0ing the two charges?

  Electric field lines near psiedf-casdeo:2:y dcuz o 9,umh )ip2 1;tive point charges

  The electric field shown) xvmcn,fzm e./g4ly)wl-g p9

  Can electric field lines intersect jlob .ah-3a .win free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform electnx,j +fhl/p p*wo2 -xpric field. Give a stfn*/wx+l2ox h- jp,ppatement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphr p-)so s)i5viere of equal diameters are each given the same charge, the elecpr) si)ovi5s -tric field (E) midway between the center and the surface is

  A cubic block of aluminum reaq7lymh4q 9 1; piwig6sts on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's tlqyiqa4;h9716mg p w iop surface?

  If a conductor is in electrostatic equilibrium ij)64q4jsxg-a ywkq5 near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grounded:t p9*064ya wzykmsb( ahtba 99p0b49z 6as kwy b(yatt: m*ah. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilij0p3,59vxrmh nz*n.y ,hqdlf brium.

State Gauss's law.

  The charge carried by g7ri75 u)a zp*-*iw/ tvlqw c;tjpg3 ione 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 net charge of +2.00 miav4q* szwqn k4e- ,g:C. How many more protons than electrons does this piece of plastic have sw, igz4-k*4naeqqv :?

  What is the charge onp,qyi5 ms9y;m1yr u l8 1 kg of protons?

  An atomic nucleus hasi4 z4mu z eyy8w.8r7n 1pf(udv a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sep- zz; -zokme-kbo+6ofarated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between thezke;mzo 6b z+fo --o-km?

  A 1.0-C charge is 15 m from a second charge, and the forcl,2o -h 1 jiy/thlpw1ilbh(* ce between them is 1.0 Nlil 1t(2jo* -lc/w1 bphhhi y,. What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. z:l n8dks:5g*/wu. b hlee,ym How far apart are they?

  The force between a 8d n8wf w xjj/ 9q;pdaj)(1lbf$30 \; mC$ 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 force.qttxt2;- (naj If they are moved to a new separation t tq 2;-anx(jtof 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-a0 y( iw8qx+gdhfmq8ays41 (ujxis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is a4 18h+da(ymq fi wsqg(x08u jyt 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 + ykrc -n(;7:jar/e+e dqy,to6 7mrpsi2.0 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 direm7rpce(kd i -6,n ojrt+/ry;s :7ayqection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC (dm(lr /j.eor at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.o (.d jer/r(lm00 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 squar6(bdpgy emr0oc* e /s.e, 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 cente0c* yb .gpr6smo/d(ee r. 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 at (0, 0.10 m); cpm:bu906o un Q3 = 5.0 nC is at (0, 0). What is the magnic60ou u mbn9p:tude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC 57 *peo(/q fmsqysip5ecm:,4adtxgcd ub(.* is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net forceis7 mm d c(bpp5(fq *aug 4/,eos.xyet*:5cdq on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at fc nh64amf972h3 ):c /c bg uxs8gqwbxthe vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude oacw)4mbh qs xngu6x/bh gc: 8f23 7cf9f the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated b ;*n0eea0dfge g pcl()y 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 actia*egf0)gc(p e 0el; dnng on it would be zero?

  A +3.0-C charge is at the origk22:bc cd qyi+;/ uucbin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it i ckubbucydq:;+/22ci s zero?

  Charge +2q is placed at the origin and charge -q is l3r.8-5t2mpe e ujn cpplaced at x = 2a. Where can a third positive charge +q be placed so that the force on it is zero?n25p.c3 me 8el ur-pjt

  A copper penny has a mass of 3.0 g. A t j15qo056j6vt cagbnzm kc+j5otal 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 attra-/ acumgiiu k,+-fd 7hction of a fixed proton hm-u cg7 fdiki-a,u+/ some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting tl6(8o jio1jyb / 7ycophreads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the aiyb/coyo( 76j plo1j8ngle 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 e2 p0byotm o/svri*rjobzx 3/d3,l 71ilectric field atv1/ox2l0imo,oz dirtj * r byb 37/s3p a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field)in86:q -z/ +0/ohdhuw;uoipjb fe da at a distance of 1.50 0 o w+b6eh z/;/nf:oudaiu8d-h)j ipqm from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the e:c ,nvgos+yr1bqy- u vndb1ke6(p x*(lectric field at the location of the test chargeo(r-u1db gvk: cnybvx6+p*, s(n1 qye?

  A 5.0-C charge is 10 m from a small test chargedij / clyjfol 8:co-c2d9 vkw ,:/fe*t. What is the direction of the electriclo:f8v-o /lced2: ij*dftwj , k9/cyc field?

  A 5.0-C charge is 10 m f3 t:1 :z0a fp7i*eydx8ctmjlpzcx;6 zrom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of pe7cjt 8zm;it:zpxax*l3:zd0 c f6 1ythe test charge?

  Two point charges each have a value of 3.0 C and are separatk lh4;jnc* eqzc8tw) /ed by a distance of 4.0 m. What is the electric field at a point midway between the two char *kt w/cehzn4q8)c jl;ges?

  A 5.0-mC charge is placed a 8f5 7pqprrqn)t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is ther pn8qf5r qp)7 electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of 4jhx+1/vb53 t.aojiakkx:a0kt my b;a meter stick and a -4.0 mC charge is placed att+ a 4ikkajm a0xj15; h/yv:bk3ot.bx 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 pla fjw 3t/dy(pxd/p; b+*rj eyw,ced at x = 0 and x = 0.20 m. What isp/x+y dwetypd/ 3f;r(w jj*b , the magnitude 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 0.50 m. Th7gx;mgxlo,e; e last corner is occupied by a -3.0 mC chargg;glxm 7, e;oxe. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side.8 f 1llq7xw4) e ;nyn)bvmhe:z 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); -3.0 mC at (0, 1). What is the magnitude of the electric field at the square's center)l exe1hzl7yw; f mqv4n)n:8b?

  A force of 10 N acts on a chargno094cji v y(poe0ok:n 3x;yte of 5.0 mC when it is placed in a uniform electric field. What is the (:0vp nyoct3 ;i40k9yjxnoeomagnitude of this electric field?

  A particle with a charge of 4.0 mC has a malo l4cwz) -t f+gb/ln;ss 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 an electric field of 6000 N/C a/eoiim xw4d3i5ok4 *pointing downward. What charge must be placed on the ball for it to be suspended?we 3oa4d*/ i5 m4iiokx

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The b,2l:l ; lfguvtall is placed inside a uniform electric field, and is suspended against the force of gravity. What are the g ul,vtl;:lf 2magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carri//smsxdq (ebl .)b w.les a charge of +2.0 mC. What is the magnitude of the electxqll (.md/bwe/ bs)s.ric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chab m2z r 6v; 79i6ntrjr(qlsks)rge of 3.0 mC. What is the electric field 6.0 cm fr92rb trs); 6sk7zn q vjirm6(lom the center of the sphere?