State the law of conserv 5.do.zqj mkic qs 5l9(q*5xbtation of electric charge.

  Is it possible for two negative charges3 muq29orar nzno11z* to attract each other?

  Is it possible for a positivo cx*+,h2)+zhuddn by j6uq ,ee and a negative charge to attract each other?

  A glass rod is rubbed wb0m:h cl1wawf dk1 -3jith a piece of silk. During the process the glass rod acquires abcfw:3 1jl1h0m a-w dk positive charge and the silk

  A proton carries a

  The model of the atom slpj svg8e,25w((v jel5 m.dd rvw1 cr4hows a

  A neutral atom alwayszqol / yw/w.d4h1uos9 has

  An atom has more electrons than protons. T 4 gy7 gtx5+*ja5b npzd2b3z8qalnou4he atom is

  Materials in which the electrons are bound very tiqsd n /h;a(kq/ghtly to the nuclei are referred sq h(nk;//qad to as

  Materials in which the electrons are bound p6igeeu3h 0 m/1qb(z*1gky,.f hetwu very loosely to the nuclei and can move about freely within the matewu1g. hg6,3mpeq/zy1t 0 befukih e (*rial are referred to as

  A negatively charged rod is brought near one i m*;,oky6 hl4rgv ou+q6yz( qend of an uncharged metal bar. The end of the metal bar farthest from the charged rod willoou,y6 lzq* ;iqkyvrh4 m6 +g( be charged

  Sphere A carries a net positive charge, a5m f4 (-hqzjtqnd sphere B is neutral. They are placed near each other on an insulated table. Sphere (5f m qtzq-4jhB is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an ek5 iq9m x ,+5fu q+hz6f6w;dikewsq,rlectroscope positively?

  An originally neutral elec -gnq,mo 8wfkyjf2),ztroscope is briefly touched with a positively charged glassm-8fn2foz,gq)kw j, y rod. The electroscope

  An originally neutral elect2*gizsxpze ovz8ojyt39y 8uk4yy 6/*roscope is grounded briefly while a positively charged gl pz8/xsyv64ouyy gz8**ez3 ky 2t 9jioass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutralyk)exufed1(x 7x5r+ tfj di .: electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not txjk )d xu:1extfy d(ei f7.5r+ouch it. What happens to the leaves?

  A large negatively charged object is placrq9d*bdtq q+epl+/kyv:b 0 fp7 p,hlkm5b 20 ued on an insulated table. A neutral metallic ball rolls straight toward the object, but seq0q+ p*0bq :k plb7+/2t9krhful,ddbvp my5tops 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 ball?

  Charge is

  What are the units o 8z zqn1ly+b4gf the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge+c4vrc(mhol zdq:+k.gq-k i 3 is larger in mag.kvz3cmordh + q:l(gq 4- k+cinitude than the second charge.

  Sphere A carries a net charge and s0;itipkh2e mt; zg7 3zphere B is neutral. They are placed near each other on an insulated table. W0zhm72ip gke 3 ;titz;hich statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain forc.jb7g/fb- .s f bxnawj:pj ho7 o7pu5:e. If the charges on both objects are doubled with no change in separation, the force betwefox7p:sw.bh oap-7j.u5 jfjb7/g b n: en them

  Two charges are separated by a distance d and exert mutual attractive forces ofoy/th+fx9*3j- yrlqstf9xnrpn . b4 4 F on each other. If the charges are separated by a distance of d jrff44xpy/x-th*b n.y+n9 q39tsrlo /3, what are the new mutual forces?

  Two charged objects attract each other with a force F. en w/y flr+s:a; +4/y4tcyjshWhat 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 valu :/rhs /sjycy 4f4;++taneywl e? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What ha0yio)ka2fsu d4 sniv,imh)xv; 38qz 2ou15 hdppens to the magnitude of the force on the proton if a second electron is placed next to the favdmih)sv 5uz041 fk iinu2);q,osy2oh 83d xirst electron?

  An electron and a proton are separated by a distance of 1.0 m. What happ oqw(e rqxg,2ujo o;(+ens to the magnitude of the force on thg;jr+ xo(euoqw(2 ,qoe first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. h5)e0 /g8 n oovzuk/evWhat happens to the size of the force on the proton if the electron is moved 0.50 m clon zv o5e8/ho/)v eku0gser to the proton?

  A point charge of +Q is placed;teqxdxk 5 maf/k5t +sop.okn1+f(2r at 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 chak.fnsxt /kfk odx5+e+(otr a q152p;mrge 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 or8vna3(qw9y 8 w zq +xg-uaa 4+,hdlhjf an equilateral triangle. When 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 othe+qlxqhaw 8nz8y(da h 4+-u9,gva r3jw r vertices?

  Which of the following v;joysvc;+yg.6q9k): b ar h yis not a vector?

  At twice the distance from a point charge, the strength of the e b7rtvdda)l *p;z a30electric field

  Is it possible to have a zero electrs7*qbmn ra .y *- ifmiij 4p/y87cizj6ic field value between a negative and positive charge along the line joining the two chargeqn m*rbs zyja i*.77cf iy/4m6 piij8-s?

  Is it possible to have a zerb6;lrst rh0m ;o electric field value between two positive charges along the li;hr;r 06l bmtsne joining the two charges?

  Electric field lines near psitive point chacil85zg7c( -+rk 9 nouc*jh tm0 shtl6rges

  The electric field shown iod9pmxkm4c0 0*n b) (ays*jt

  Can electric field lines aoozjs e*8(m ,intersect in free space?

  A solid block of metal in electrosth b8k*zw((x+u nun*8ns kpm. tatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric fietw k.hunm*(b*8n8ukx+pn z (s ld in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are ehq sw hueq578i+h 2m,:ytc/vsach given the same charge, the electric field (75/ssh q,vtq 28i +:emwcyhhuE) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a ir wvph,l-i*,q8e l: tregion where a uniform electric fieh,il,q:8lv-w*ie r tpld is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrosta52 kt --nodxqgtic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallioyqg6wzjpy 7 vs(mt7m5: r)+wwb7yb) c sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abov5+w m7t ( 6w)ps):7rv zogqbb wyjyy7me the hollow sphere has

State three properties of conductors in static u b8hdq(d+j zo59;evoequilibrium.

State Gauss's law.

  The charge carried by one el*tybsd 0/q7.kr fmsu,9 ,tay cectron 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 morex ;t/sb hd8d;8 uhltxnu6k8v . protons than electrons does this piece of pl8u l/.86suv dt;8xnbh;k thx dastic have?

  What is the charge on 1 kg of prot t1aylu.g8 lz)0vu5xxons?

  An atomic nucleus has ym i+j3,/n)vit f7m1i dh ocj0gq 4tw,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 value c;vjci)+vlh .s3 q,hl/txmj8wd( )y rs of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between theml 8 l 3h(mrtsj.q+ccw);d)hyxv ,/ivj?

  A 1.0-C charge is 15 m from a second charge, and the force betwee-u cg/jafsg(2 n them is 1.0 N. What ifu-ca jgg s/(2s the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How faf k o.93aryp1n;6 ha )ixr*ygvr apart are they?

  The force between a dynk6; g yo;g7l.pqejk(1qt9f*v 5f x$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expeiy khl0rv8u) /rience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force betwee ilrh)8 /0vuykn them?

  Three identical point charges of 2.0 mC are placed on the x-axis. /f hfc6 j,v107rmfyusqlzrd; i9y,/h The first charge is at the orizyf9h 6,hc0f7 j qrdr/msuy1l f,/;ivgin, 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 charge otpxczf/ (iw8 ;f +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cxcz /ifp(t 8w;m, 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 jcv6u u.x9(snlocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = 6(vux js9cn. u-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 zr.7 getwri t;i 6;hy*placed at the center of a square, and a second point charge of -Q is p7ytr ei.h;6z;r t*igwlaced 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 iqc8 +6h5jmidf s at (0, 0.10 m); Q3 = 5.0 nC is at mi hc8+6d5fq j(0, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0)ml )rtp mt.q1 :pme 50b3(7 sbkhmsp*w; Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net for( tsw* 1) bmmpl75hb msp:r q3mptk.0ece on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at th+g 0/gh) jhckf t+eei,e vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on /e )chk+h ,jt fi0g+egany one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0igsxta; ):kz 8 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 acting on it would b): a8xk s;tzige zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4rq w,fba/rs.d;bs fjy4m9n /(.0 m. Where on the x-axis can a thiys (b;mrnq /fs jbd9f 4raw./,rd charge be placed so the net force on it is zero?

  Charge +2q is placed do;j* 96q j+ zm4ftrmx7yo+lvat the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it i4fy;6 9om mtorv++*7jdx q ljzs zero?

  A copper penny has a mass )a(k u rwvxf(-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 againwy +rsjb ,:3cist the force of gravity by the attraction of a fixed proton some distance above it. How ,sc:+wbiryj 3 far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common pisy+ wu9s7yr 9oint by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until thwyir9u97y+s se angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chargu+rbgik;m;;( zwp0tqyqn1g 8e of +40e. What is the magnitude of the electric field at a distance of 1.; nbu( k8pryggqt+wzqim1;0;0 m from the nucleus?

  What are the magnitude and rlpalt4w1u,+kt.;* vy qz6fy-sxua 1 direction of the electric field at a distance of 1.50 mwuul,qla t .r* kays6+v4 -1p1ztx;y f from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the mnh0 gn3jn ,e0f1 cvn/aagnitude of the electric fie 1/jnaf0cng ,0hv3nne ld at the location of the test charge?

  A 5.0-C charge is 10 m from a small test16.tsyl c rge;6fc2 yw charge. What is the direction of the electr62sy rfl1w t.;cg6y ecic field?

  A 5.0-C charge is 10 m from a small test charge.is-lqn 2+p j /nie(djw*/ rz8o What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the t2-pil(qr+w n8 sjde/ *njzio/est charge?

  Two point charges each hav- d+shnn:rfhr*1x l8ce a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field ar- rc:*n1hh+ dx nlfs8t a point midway between the two charges?

  A 5.0-mC charge is placed at tha g2ve z021 smz-bv4tmm5hu r8e 0 cm mark of a meter stick and a -4.0 mC charge is pt2sv1heuzz v8ma mg-52 04mr blaced at the 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 stick and a -4.0 mC charg5qlmk5 )o fh5 2pcbe(te is p5qo bk5(tceh2l)m fp 5laced 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 ank, qbago.e b7y7t)k ,kd x = 0.20 m. What is the magnitude of the electriy,aqtb ekgob7,k7.) kc field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square o+)ew9e7jhgg. i vo6,hktrca )f side 0.50 m. The last corner is occupiedw o,ic ge6j9htea.r))vk gh+ 7 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 are placed/hfq0z u)gbf+ at the corners of the squub+0z) f fhg/qare 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 o2a 5i;b fb1ncnt -snhd84oy3jn a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this elect; i8dnnjofnh st3acy2 b5b41- ric field?

  A particle with a charge of 4.0 mC hasw6 a69(kf c-p.h v6oed coza)a 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 field625if)5k 9kztpw xylp of 6000 N/C pointing downward. What chargeli9k 56z wfp5ykp)tx2 must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is qha*qmrd*pp.93 rpsg/wx w 13placed inside* apq93 rxqprgpswd /1w*.h3m a uniform electric field, 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 carries a charge q 5qvam pto2;;of +2.0 mC. What is the magnitude of the electric ftv o5qmqpa;;2 ield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries;q8k:n jmy(r zar3fgo; i-gq9 a charge of 3.0 mC. What is the electric field 6.0 ima :q3kg-yf(9n qrg; oz8rj;cm from the center of the sphere?