State the law of conservation of elemj85.fvqqythj bf/ l7v (d30cctric charge.

  Is it possible for two negative charges to attractqjj)yl697dzxdrs )o h+:q:a q8rf 4zo each other?

  Is it possible for a positiv 23cq uda03)v6afi kote and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the proces)fo.b: n 4kdars the glass rod ac.:kf)rdba no 4quires a positive charge and the silk

  A proton carries a

  The model of the atox,2f1q sy 01ljywqfse9u* e:zad7pl/ m shows a

  A neutral atom always zrs c7-kok1* xhas

  An atom has more electrons than protons. The atom ivl x51 c/a3xchs

  Materials in which the electrons are bound ver9oq/u*:ps djn y tightly to the nuclei are referred td/ pj:s9uo qn*o as

  Materials in which the electrons are bound very loosely to ozd x bug- 9e/b)18npdthe nuclei and can move about freely within the material are refer98-)b1d nx uz/ dogebpred to as

  A negatively charged rod is brought near one end of an uncharged metk8 dsal :6fi5ypn (i8hal bar. The e5apfhyin 6 ld 8:sk8(ind of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. u14qtyrfo*1 w+uf47kfsxaq ) They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?qfy auro +k11f4tu7w4xq) f*s

  How can a negatively charged ra99ueg4dp -x)s,t jng od charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargen+jc: ms00o 24zl bd(o eyba:zd ae0 ozm(cn2lbo:j0b+d z 4y:sglass rod. The electroscope

  An originally neutral electroscope is grounded vq1ulpn3. 6ss8q 0wnjbriefly while a positively charged glass rod is hel 81w3 v n6.ssn0lqqjupd near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, x-30pf ps-xko and the leaves separate. Then a negative object is brought near the electroscope-x3sx-p0ko f p, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. 0( y2 ,(h:loqqcjqbqeA 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 sto oqelqyq((, b2:j0qchps. 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 Coulom;s*vq0nps asf 0c+32aw je:rjb constant $k$, which appears in Coulomb's law?

  Two charged objects are separate 5)q sex4yb1d1vs; g ge6kuka,d by a distance d. The first charge is larger in magnitude than the second charge.ee5 vkg;6by 1u,)ax sksq1d 4g

  Sphere A carries a net charge an u-,xz wp 8*xe k3zp7toyq(ci)d sphere B is neutral. They are placed near each other on an insulated table.73q,izcy kexpu*p o(tz) 8wx- Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the chargee0zs )dq 0k 6l1r0obgts on both objedsq0 z010o gl6eb k)trcts are doubled with no change in separation, the force between them

  Two charges are separated by ahzjxfsd52bq4-p lx 4c q1,+:. zqcmzt distance d and exert mutual attractive forces of F on each other. If the charges are separated by a disq zj:1 5qzpxtsz hc xb2.qm, -+44fdlctance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a fojsj, ,7e-q4gnro7r 0kpm ak1crce 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 reduced to one-fourth its original value? The force is now equal rnc 0kka 7m 1ogsp,eq,r4j-7j to

  An electron and a proto.im 1+lbxkig; n are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placelkgi.1xb +mi ;d next to the first electron?

  An electron and a proton are separatede jz11jmzrf-- lmv13 y by a distance of 1.0 m. What happens to the magnitude of the force1em vyzfm 1j--lrz31j on the first electron if a second electron is placed next to the proton?

  An electron and a proton b87u*qlb o2:qz fq2l bv+yyl)are separated by a distance of 1.0 m. What happens to the size of the force on the protonu2)qlqo 82y zq7lv+:bbfb* ly if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center :(urra vfr98bzl- y8sof a square. When a second point charge of -Q is place8vr:8ra(b9l y r u-szfd 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 acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an eqllraw.4o4n7 q6 k4vuq uilateral triangle. When a second charge of +Q7444al.nqqu rok6wvl 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 s7m9 t,d w6o+nt kof(ca vector?

  At twice the distance fro;:xp0ytplb-cd z +*d0, ze pztm a point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and pqxxw,) irl8 kj- (zgq-a8s6deositive cha) 8la(e 8jxz gqq-id6s ,r-wkxrge along the line joining the two charges?

  Is it possible to have a zero electric r*e4d+v 5zhavl0uw0 l field value between two positive charges alonw+ l0r0* uv4lz dha5evg the line joining the two charges?

  Electric field lines near psitive poinz hcp1)2dqqb 9t charges

  The electric field shvyqm( 30(/6f pd3j j sjd4th0(q atlktown

  Can electric field lines intersect in free spaceo/h d6:-iavhxk;hxy . ?

  A solid block of metal in electrostatic equilibrium is placed in a uniform6ewc do:txkg. o3 ;ws- electric field. ce.xw-tog w ;ko36:d sGive a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphz(77 r( 1r3toz 1q eouc6fdepxere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surfrfd( 3zr7z(o6xq7 eeu c 1ot1pace is

  A cubic block of aluminum rests on a wooden table ig,b0;yr 6lrba (y*zw3zit9tn0 zu*u xn a region where a uniform electric field is dire30 gya bt*t*0zb9(z,zu 6rrilw ;xnyu cted straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in el otpi+hdg7 w*yc,e 6l,ectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sph w1.-lmxpf ;nr. skwi-(ap vqk7l +rx7ere that is grounded. As compared to the case without kwx7.qr-;w xnl.+m l(apvp rs 7-i1kf the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors i1qj8j0n-t(e6 j r5hcvk/v e pin static equilibrium.

State Gauss's law.

  The charge carried by onhr :c*k nq7u*we 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 hak /z(f,cb 5lw uybnq73s a net charge of +2.00 mC. How many more protons than electronsf z5ybkc, n/q3 lbu7w( does this piece of plastic have?

  What is the charge on 1 kg of protonsstv42terbe + gml6 i8czr5,b+szr6i: y7-vb o?

  An atomic nucleus ha oh sdriz9 *o9,pr-gd +kh-a8ps a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separatedl6;j m so4v,nb by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of ,;jl4s6mv bon the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betwk0 v,efdwavd *5py3 9ueen them is 1.0 N. What is the magnitude of the second chargeda,pew k05uvdfy *9v3 ?

  Two 1.0-C charges have a force between them of 1.0 N. How fdjf :./feb9lxl(i yy6ar apart are they?

  The force between a zc)owa; gz-; i$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart,pm7cu :q6 oau e0tkv8:b(y1 dl experience a 1.0-N force. If they are movep0t:k( 6doe :1a mcuby8 l7vqud to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Twddm8 hh qiww7ci9o+iey 9. /(8 yft5fhe first charge is at tc e89h5yfy7f(8+ q.t9wi wwihd mid/ohe 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 force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charjv5. 2+hq 8n3 airhx i2adiio+ge 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 hiijhqv +iix 32na2ao 8r.+5d the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at 06luzyg p.xb76m1n bbx = 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 char b.z 7bbmgul6n6yx01pge?

  A point charge of +Q is placed at the center f +nro t9r sacg88*7 oi0yih6p pu2ci.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 cni 0+9ho.ct2roura 7pfpic g* 8iy s68enter. 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); q+m/ ayoaey f8 dbp;8;Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net forcae;adqm+ ;/yf by 8o8pe on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0):az6sgumodhg 42d 0b+0vs ah ;; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direds2 bz0+h m:vau a4h;d6ogg0 sction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral j2 1 wefefeagg/3xq(: triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any ae eggxjf 23 wfeq1:(/one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what pt w -.jna 3j4(d:e89k7yh upj(zvbfg+aswv0 hoint, on a line b(jpbzkg tv (94nah.-0 ewy jj7fa+dus h8w3 v:etween 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 = 4.0 m. Where on a*0f98w4 f / lyazudsy 9qx 3h- lhl6oyp8wyk*the x-axis can a third chaw9 w*6yh4sl hoyfaqy9y zll8/du- 3 pf80k*xarge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is 9+d:6i2 dqcvp - dbmr7jyg :adplaced at x = 2a. Where can a third positive charge bc 7d9ad2drj:y+6: di -mvgpq +q be placed so that the force on it is zero?

  A copper penny has an,ln2z sa+ em8 mass 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. l)bpboz tf12xh t-.w4y.r qh fixed proton some distance above it. How far above the electron is the protbortylzwx1hb. )4pf.h q2.t-on?

  Two 0.20-g metal spheres are hung from a common point by noncone /g-ur,xj3 jj)xiud2ducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces themi 3u /,gjx2)xreudjj - apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus hap*pk g-5 fxs(js a charge of +40e. What is the magnitude of the electric field at a distank*ps5fx- g(j pce of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distancer1* h0sxy (xbnna:li8yt6,ji4x1r 5t b ouf q6 of 1.50 m from a 50.0-nCr8*xhtyy0 4rb(bolsx6t ii:,fa1nj15ux q6n charge?

  A 5.0-C charge is 10 m fr2vw9 fhp7b ay13g- qphom a small test charge. What is the magnitude of the electric field at the locaty13 pvf-hhab2p7 9w qgion of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the25-oosqsx1g+rv-t my) aws2q elec +5 sxas 2os-mo2tygv-q )q1wrtric field?

  A 5.0-C charge is 10 m from aksi19+ u+fo,e me xw*t small test charge. What is the magnitude of the force experienced by a 1.0 nC charge pluio fkm*1tsw,ex9 ++eaced at the location of the test charge?

  Two point charges each have a vwf3bbpoaq5( oe x6 72dalue of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the twox6bf2p 5q e( wa3od7bo charges?

  A 5.0-mC charge is placed at the 0 cmr9o 39ffezsk- mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field ato3e9s kf-9zfr 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 charqi2m6f;:b 3 5qeqbce ynb-)vbge is placed at the 50 cm mark. At what point on a line joining the two charges is byc 5mn bb62i:qvbef)e - ;q3qthe electric field zero?

  Two point charges of +3.0prbo15g0xt /i mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fiegt / ix01porb5ld at the point midway between them?

  Three 3.0 mC charges are at the 1ai5-yu t7kpd three corners 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 cei1 yapd57k- tunter of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at theii/(0ju(kd mkax 3l,d 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). Wha d (/kim(xua30ijdl,kt is the magnitude 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 a unixr v79kvthgikm o5 : 4-zk8za-form electric field. What is the magnitude of thk-8-95kgrzo7htzimvv kx:4 a is electric field?

  A particle with a chrt7t 4m nr*qaif3d) ;;,wz guq-ed.gg arge 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 mass 0.120 g is placed in an electric field of 6000 N/C e m))rn5kpr:zpointing downward. What charge:)5 pnm )erkrz must be placed on the ball for it to be suspended?

  A foam ball of mass 0.qu7rta c p)..b150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric f7ruc. ba.t q)pield, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm cnr7(ca4 ylb09 jgqq 0barries a charge of +2.0 mC. What is the magnitude of the electric field 5.bq (0a g470lqy rbc9jn0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the elect;b:i9fsl;blnh: nl f tk18*tzh2 : iuqric filhlqfl :hbizti; su :1nf9;:2b8* tkneld 6.0 cm from the center of the sphere?