State the law of conservation of ele.bd 75 v,xgyb9p0jre khg2 rt7ctric charge.

  Is it possible for two negcg()n:t yxd6 ys5gayd,x+6kkva e 1-dj0yef)ative charges to attract each other?

  Is it possible for a positive and a nee* q jche2q-f 8/- dud.aky5jsgative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rod a28fu*wqwd/qk 1e uz+ycquires a 2weq* 8q+wkz d yf/uu1positive charge and the silk

  A proton carries a

  The model of the atomtksvbc;d pn:2*az ,(p shows a

  A neutral atom always /n4 ;emty 5ik.mm ltu/has

  An atom has more electrons than protons. The atom i(m9uk fbbc1at38ngvl)5 v9 b ms

  Materials in which the hh*58 eyr0 ii t6vts9v g1yve7electrons are bound very tightly to the nuclei are referredhvri5hse7i* e vty801t 69ygv to as

  Materials in which the electrons are bound very loosely to the nuclei and cp)(mod lo, id5wgec-- an move about fr,-o-dgcp(lm 5e w)d ioeely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. Thky 1x sd2w*6rrl0.bo le end of the metal*br2l6 xl 0dsor ykw1. bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B i qm-.gvm0ld*84 ircbxs neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. W.xgc-*q mr0vb4 dm8i lhich statement is correct?

  How can a negatively chargetfivg66+mqp k(6on , zomv-b :d rod charge an electroscope positively?

  An originally neutral electrk.x1cl4jq r n9 8dxuq4oscope is briefly touched with a positively charged glass rod. The electroscope. qrqn4x8c xd 914uklj

  An originally neutral electroscope is5x ldx 7zq)ii( grounded briefly while a positively charged glass rod is held near it5 x)xi7dzil( q. After the glass rod is removed, the electroscope

  A positive object touches a neutral electrosco6 ocu 9*;ehlxoz4adcew7r-3zpe, and the leaves separate. Then a negative object is brought near 7o6z ez;*cd uxaw9e-ch4or 3lthe electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed :)d1j- cfc fxbn+ +en(jed;*;tk bra ion 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 ti;(rf*xe ejbc+fc dn1k;b) :na -+jtdi me does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb cqi2i*o:7 vzzg :aa(cdpi4 g*ponstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by x)ex xd.qny59yd-19dggu jvc*vdc.5a distance d. The first charge is larger in magnitude than the second charge.x q eyxdyd99v)x 1gd. n-5.j5cvd*gcu

  Sphere A carries a net charge and sphere B is neutral. Th uysxg qp397.iey are placed near each other on an insulated table. Which statement best describes the electrostatic force betwe.yuxs g7i39q pen them?

  Two charged objects attract each other with a*settb*3+ kyfi max;owo 6l3hi/5n( g certain force. If the charges on both objects are doubled 3it l5o+ e3;/h a(n*s6ofkty i wxb*gmwith no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractif-j duuaj)e5yy -8c0zfj9 r*dq yoe-)ve forces of F on each other. If the charges are separated by a distance -oyyu)qj)fyu c r*def j5890 z-j a-deof d/3, what are the new mutual forces?

  Two charged objects attract m2 xzwb5rxmz/)h37 -bij r+uuz1i12r)olb dheach other 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 reduim2ob1) r r)b51x2hz+xi3wbzurmdlh7- zj/uced to one-fourth its original value? The force is now equal to

  An electron and a proton pzdp/ik8.wp -q,(6gbl6vs+gm ji:0 8roedsz 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 placed drk z66g:( sg8.jidpswqbo,l 0i evmpp8z/+- next to the first electron?

  An electron and a proton are separated by a distance of 1. cjwrpvnz(3jd*ifns, 57 6vs.1r 1zv c0 m. What happens to the magnitude of the force on the first electron if a second electrrd1(,r3s jin np15v vfj7.cczvzw*6son is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. c ;jzg ejcon8-;)v *2h muv)deWhat happens to the size of the force on the proton if the electron e;njvh28uzo );-vcm)ge dc *jis moved 0.50 m closer to the proton?

  A point charge of +Q is placed at lh;inavmc/d gjsmtj(h0 :v e//+8z6 i the 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 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 themhla:8c 6+ e//v;jgdhi(sv/ ij0zmt n 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 equilateral triangle. When2k21w3a tugzz t1k zwa2z3u2g 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 one of the other vertices?

  Which of the following is not a vector:jpw1s3o/1*js(mckjum 8g u w?

  At twice the distance f2gw0y4 dkerk, h9nktf p o*/*sz4kw q2rom a point charge, the strength of the electric field

  Is it possible to have m+b a+4 *e(k.xj( y kpgn5 tjtdx6t9rqa zero electric field value between a negative and positive charge along the line joining the two charges(k+tkr *pb5n+4j9x emy(xt tjdq6a.g?

  Is it possible to have a zero electric field value between two positive c. r is+ qh)dl2v9tqkbb9cxr 5,vee(-eharges along the line joinings.5h-xr,dc2q+i) te kv (9eebrblq9 v the two charges?

  Electric field lines near psitive point cha00d; 4 aop3klfbdbk5a rges

  The electric field show5czwr 1d tbu x./+2ugyn

  Can electric field lines intersect in free sbja*4 2k3tdtzpace?

  A solid block of metal in electrosta3m5t5 dhh 9sfu0h8o4zy8kcm btic equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's inteh4y zmo5 95b dhusf83k8 0mhctrior.

  If a solid metal sphere and a hovi5.h qf/ zmrk bf0249gkyeqqbs /g82llow metal sphere of equal diameters are each given the same charge, the electribgf/ 0b8kv9 r4 /mkz i2qgy5ef.qs2qhc field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regiomk :rim qwh7(5lk ih+k*w c6r;n where a uniform electric field is directed straight upward. What can b mkrq kihh(irww*m7:6;5 k+lce said concerning the charge on the block's top surface?

  If a conductor is in electr wsp6 r7v1)vkapav6hx:cq b)uz*b5y9ostatic equilibrium near an electric charge

  A positive point charge is enclosed in 4 -vdwoflme36a hollow metallic sphere that is grounded. As evld4mw36 f-o 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 equi l73gjevn7): 7qx whlqlibrium.

State Gauss's law.

  The charge carried by onelva .m)qzaxm3kxcdw52 ;i -n5 kt(z,i 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 mC. How many more protons than k 3au/ /6a(zb5.rgrlzqjry9velectrons does this piece of l qja/ 36z/ak9bz(rvyu r5g .rplastic have?

  What is the charge on 1 kg o3s8t r;1ilpttpb 8y;j:d ue ydhbi 1-6f protons?

  An atomic nucleus hastojl*c,w f,.k a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, have charge values of 2.0 a07-; gg clqknsnd -4.0 mC, respectively. What is the magnitude oq sg-c7 0ln;kgf the electric force between them?

  A 1.0-C charge is 15 m from a secon tq b2 k558)4obqjbytad charge, and the force between them is 1.0 N. What is the magnitude of the second b tob j4ya)52t 5kqqb8charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are7)z, tm:b hcpe they?

  The force between a lm; 2+ hc8 y ) zcp3ihrluzy:wdvo(+*)uodl k7$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initialo/zpd(g xg6ab.uah 56ly 2.0 cm apart, experience a 1.0-N force. If they are moved to a new sepab.5g6hx(u ag doza p/6ration of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC ar)e lbywyd4l7 ( i0f*ere 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 at the 100 cm 7) d*lye0fy(erbwl 4imark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on xhwc5tq:doxv,b, k8b e: q;8b 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?8 ,e bk:d:t8cwbxqh , ox;q5bv

  Three point charges are located at the following positions: Q1 = 2.0o182rjxw mh z(0 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 magnitudhrjx( wz12m 8oe of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a s2(hkxkrfhc :p 2r44 vnecond point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on thf4:2cv(h rxk2 4phr kne 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 at (0, 0.10v:+ mkp15 b:l mzkrah0 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude oflhp:m1kbk0r +z a5mv : 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, 0.162fvgb/- zd, 24tue o sxchst0a3re-q0 m); Q3 = 5.0 nC is at (0rhe ,ug-v b30ez-tatq 2o/x426s cdfs, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the p/o wg(cmy.ftb+fc;1 vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elegoy c+w t(;bpm1f/.cfctrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, whitdxcg8 hnu : g: ou*f-;xj;(ykch are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a chuy* kx(;cofxu 8g:g: d-;tjnharge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the originbrkke8l ob; yk37m.. b and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a thiko y ek;b kb3l.rm.78brd 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 = *y *tckqus y) :,lyvpu:no/n 22a. Where can a third positive charge +q be placed vkc yy yu**t)sqnl2np:,u:/o so that the force on it is zero?

  A copper penny has a mass of 3.x) l ulcuisp 3fm: m xpz:z(;(vex390p0 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 atg2a - gsu3e:fgainst the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the pr3e-:sagfut g 2oton?

  Two 0.20-g metal spheres are hung from a common point by cz1apos4 +or p-e1gh*k:;d n enonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion feo:+pn o1ze-1*dck phsg4a r; orces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has z ).y5 chgj70th). l,ommbmzy a charge of +40e. What is the magnitude of the electric field l)t)jm 0 .zg5z yh.o mbmy,hc7at a distance of 1.0 m from the nucleus?

  What are the magnitude and diry f1r9 dq5hmn7zq2 z97p c.iolection of the electric field at a distance of 1.50 m from a 50.0-nC charz iyln1c zfrdh q99m57q.po2 7ge?

  A 5.0-C charge is 10 m from a small test charge. What is talf,l/pp m +*ghe magnitude of the electric field at th ,mppl /lag+*fe location of the test charge?

  A 5.0-C charge is 10 m from a smalld,u) 9fen- g8y7jjhv h test charge. What is the direction of the elect e8f 7-yhj,vh9uj)g dnric field?

  A 5.0-C charge is 10 m from a smal qyrgs.z619qa l test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at thaq rz 96ys1q.ge location of the test charge?

  Two point charges each have a value 7bwqjcp 6c+n) of 3.0 C and are separated by a distance of 4.0 m. What is the electricw+c7pncbq )j 6 field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick +ibrm;x(zm5m and a -4.0 mC charge is placed at t5 i(x+mmz ;mrbhe 50 cm mark. 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 stic4h3k-snf0 lck6oj vl- k and a -4.0 mC charge is placed at the 50 cm mar-4lc-j6 0 hsfk lkv3nok. 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 y:xxizu 7g3u4ced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway betwey xzig73uu:x4en them?

  Three 3.0 mC charges ae*gg8t2 -mrdg64h(j ryo9bgtc hi; ves),;u qre at the three corners of a square of side 0.50 m. The last cornyq e* ;vrdojtmih2g8;6 rt9gh4suge(- bg),c er 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. Charges ars. 7nz+ a9axnmj3f a6ke 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 m.z a 69km7a+nasnj3fx C 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 mC when it is placed iz336fw cjhz) :3yy ell+zm p*vn a uniform electric field. What is the magnitude ml3yz3*)lvy:wf zzhj6p3 c e+of this electric field?

  A particle with a charge of 4.0 mC has a mas mgyu8i*4f;z os 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 isvou exk8-ngj 9l87/dv placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ba/7gvxonu kj8dve9l8 - ll for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placewvgp5* 7p w-rrd inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the e7rw vrp 5g*w-plectric field?

  A metal sphere of radius/a 5xn tnv*yh. 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5. 5h.x*yna tv/n0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a cagd),tcmp)-e w8j k) vharge of 3.0 mC. What is the electric field 6.0 cm fwe))v a,kt8gjc-p)m drom the center of the sphere?