State the law of conservation of electric cha kjyf cdcw3bo11(i, /rrge.

  Is it possible for two negative charges to attract eac9lzj xv;gy0vol 8 z/r)h other?

  Is it possible for a positive and a negative char,sl4f jw(tx 6qge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass ro,rxzc)20fjq vpsep t2+7(ngcd acquires a posi(p2ccpj,2 xg7) zevrsfn q t0+tive charge and the silk

  A proton carries a

  The model of the atom shows;+fj 6bb tjyj5 a

  A neutral atom always hsiuaf; jei 1mv9hu 9k/nv- nl ,86aua4as

  An atom has more electrons than proton ibno) wk(qe-,/pvi6ls. The atom is

  Materials in which the electrons are bound very tightly 9* gu 4mbjw9eeto the nuclei are referred e9 e4wmj9ugb*to as

  Materials in which the electrons are bound very (u4 .g0rg r/-;-qcvaet ogdl- k;npdmloosely to the nuclei and can move abouog .ng d -(lc ;tqerrk4pav0; /-gd-mut freely within the material are referred to as

  A negatively charged rod is brought near one end of an unch gznrda )k5q5uj.i8 -parged metal bar. The end of the metal bar farthest from trkiu.dp q z8nj-g5)a5he charged rod will be charged

  Sphere A carries a net positive chargo*pr *tm ,i6rp/eq d3we h6*oje, and sphere B is neutral. They are placed near each other on an inetmr p* pwo*/ 6dq6e,r*i hj3osulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod chamlgr 0vk51 -jdpon m4eda j497rge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively * xfv1sqlxt-pb 0),my charged glass rodtv) fp *xxq1bm0,-lys. The electroscope

  An originally neutral electroscope is grounded briefly w sjc)ei7b,5d.6)+l xcphrj4pq +e xklhile a positively chargedx+xpde,.b cq le4s)p7r j +k)6h 5cilj glass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral eog5 py .lar/+ve* (pfmlectroscope, and the leaves separate. Then a negative object is brought neel/ p fom (+pgv5y.*arar the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed vnk*vez0m 0ed72o hej.cw amj4r(j 32on 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 objecvreeh 0 dnjmjmc 3 *2o vz7ak40we2.(jt. 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 cc3 v0d53gg r4w85,daqnp aktxonstant $k$, which appears in Coulomb's law?

  Two charged objects are separated -fh*4d2po 7p 7upv/s oox6z;l,z xjstby a distance d. The first charge is larger in magnitudolu ohd7t xojpp ;fs sxv-7,2p/z *46ze than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They a 1+ v;;qs/vhkj)wk h- mkb4atnre placed near each other on an insulated table.;t a hqvjbv k +nk-/;w41hkm)s Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certai wykyahp(1- t5,fvz jd),n7fen force. If the charges on both objects are doubled wi (yjk - h)w efda,15,f7yvtznpth no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive fob/ 02 h/iipmfkrces of F on each other. If the charges are separated by a distance of d/3 bp02hmki/i/f, what are the new mutual forces?

  Two charged objects attract each otheryiuhd1d t lm 3mh-3r2) 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 reduced to one-fourth its origi31-yhd2 h 3ldmum)rtinal value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. bu3bup;w w9o93 2 ghef What happens to the magnitude ofwgefu3bw bpoh; 3299u the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are sepaj24wydyt x/0jp-vqt. d2 k8dz rated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electr-yt2d ty4d 2v8xqj w p/0kzjd.on is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens to makgv) 7u.-z g6(ib duthe size of the force uz7k)buv .i adggm(6-on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is ruh5:now+ccwqlv/+xu5 yo 8gx 1 t v21placed 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 charge at the square's center. Now,wt/vwlr85y 2+u o1q:c+1h vx xcun5og 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 equilatera )di0, a,hfo bpo82*siy qhm(ul 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 t (,2omdsuhy8 )ahq *ifi0b, ophe 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 *.vz 205u+lbn d-h zg 4pcheuovector?

  At twice the distance from a point charge, the strength of the electric f4ou.: al(cp fc jff-/3bn ka8uield

  Is it possible to have a zero electric field value between azuf qkz0mm d h2a6kzbs*0o)72 negative and positive charge along the line j d022um)mkhq76zfz 0skabo z* oining the two charges?

  Is it possible to have a zy5+x 14-ej k.ige bjrnero electric field value between two positive charges along the line joining the te .xikg1 ejjy -+rb4n5wo charges?

  Electric field lines nea0iydqs / *u6e hc)d(wwr psitive point charges

  The electric field shownhrfejll.z+8ft ; (,ka

  Can electric field lines intersect in free snmiv-3eoq8cu6um npkh76 z;w2 hf 0 b.pace?

  A solid block of metal inx6hh/ ypv2k9e electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the k/e9phh xv 62yelectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphr,mqglz)ej .* gbm/ c*ere of equal diameters are each given t) cgmbmj q /ez,r*g.l*he same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden tableorgz 5u+om;k: in a region where a uniform electric field is directed straight upward. What can be said concerning the oko;r um5g:z +charge on the block's top surface?

  If a conductor is in electrostatic m;6x(bn40*gymttam f equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphy g0h* j:vxko+us)8.ro bt 4zaere that is grounded. As compared to the caujo*xbrgza0 .yk: th8o +) vs4se without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertimo.v l;xhnc 3mt/ h,3ues of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one ) jdd,0l5 1z-hzkek3x9 bvxggelectron 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 azht1qe3gdclv 8c i5 8mn mc:*mm:/z6r net charge of +2.00 mC. How many more protons than electrons does this zmnc1 t5hrev cd::c3 zg8q 8*/6mmilmpiece of plastic have?

  What is the charge on 1 kg of pr ns*;.c4if+storx1 j6q( spb ootons?

  An atomic nucleus has a charge vkeciys+53g; 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 mlpu;0 t nhw98gzb ;w:nC, respecti:t0hw 8ng p9luz;nb; wvely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is(ov4 5dvs;j /m l0e-z2tclqnu 1.0 N. What is the magnitude of thes j v(2v;5elc ndl-u/4moz0qt second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are they?hz.ikx4h5 9ij- adn.twu 5 nw,4bn-ab

  The force between a 4 )dwv)rb./ihp:en7auhqdl e 7( ew) w$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 ot03 /jmozo o,b- a x1d8zurd)3.ehmpcm apart, experience a 1.0-N force. If they are moved to a new separation of 8hu)a33m et zo 1o brod0,m. -8xpjozd/.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are qf+q )2b :(ukh8wcf 3pdj(soaplaced 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 mark. What are the magnitude and direction of the electrostatic forcd8)2fuw+ :(bo3kaqfh sqp (j ce which acts on the charge at the origin?

  Three point charges arnrweiadgk2f.,8w sb fsry4 eh; 5: :p+e placed 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 mar+8e:ps :ds2hw; e54 r,kfr iba.fy gwnk. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges 6l9hm-bac+ks jlt- z8o 5u-qbare located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC o9j8 a sqbl kt-6 hl+u-bc-5zmat 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 center of a square, and afuug2 d 53rpt9l8;lzd 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 center. r 3p dzul5;d89f ltu2g 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 8ogh8nlq 8ux+st7nnxm+ ue 65, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magh78n6l+ 8q uen tso5x+8 umxngnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); q*i2m kr 0r)zs:qrcfqn:;n s8Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC c qn)ic*s2mr k8: f; qsz0q:rnrharge?

  Three identical charges of 3.0 mC are placed at the vertices of y1na5q v56rhf/l6tr xan equilateral triangle which measures 30 cm on a side. What is the magnitude of the elecnh xvy516la /qfr6rt5trostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are s-iol) *9o0-eucjo *h)vwnntoeparated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge ofo) vh-ie *njwc l*oo0- nuto)9 -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. Wh a19kojx kspl (f,tef/) irc60ere on the x-axis can a third charge be placed so the net fok x)r0fk/ilp(,fe toa1sj c 96rce on it is zero?

  Charge +2q is placed at the origin and charge -q is zt2i urj-d +4kd2 ctm3placed at x = 2a. Where can a third positive charge +q be placed so that the fo24d ktu2+i cjt-3zdr mrce on it is zero?

  A copper penny has a masrgft.r6 wmt 3:qk +q;ls 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 at32pavq .iaku+ traction of a fixed proton some distance above it. How far ai23pkaa. qu+v bove the electron is the proton?

  Two 0.20-g metal spheres are hntn w5q;g4nn*ung from a common point by nonconducting threads which qtg*nn ;w45nnare 30 cm long. Both are given identical charges, 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 of the electric f of:cbse/+ff,y ( * b7th g1zx7g9vyrwield at a distance of 1.097yg e +fg7r sfv, yfb1(c/:bhx*wzot m from the nucleus?

  What are the magnitud /i8 1ormfrfx w,y9cl2e and direction of the electric field at a distance of 1.50 m1yf9xrmoc 8 r,wil 2/f from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small t ynn4 hs .wby+++;b:egbw bsz2est charge. What is the magnitude of the electric field at teb+4 .yb;swynb+ wzgs+: n2hbhe location of the test charge?

  A 5.0-C charge is 10 m from ajk60l 27ufkyhhccf99 small test charge. What is the direction of the electric fhfk97c luh26k yfc0j 9ield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the fu*2h:,d zznjdg+qk)/w 8s ivyj7 qy8force experienced by a 1.0 nC charge placed at the location of the test charge?/k 8 zdi 8q:f j+vysq*z2j ywdugn7,)h

  Two point charges each have a value of 3.0 C and are separated by a distancq:hbfe;; 2wrq:b5ze qe of 4.0 m. What is the electric field at abq:;re2qwehz: b5 ;fq point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cml2p muib6f-w17gs6f+ ttq ed y4o jri,a:43 cm mark of a meter stick and a -4.0 mC charge is plac 6 imtj-eci+,sda46p y3rmuf 4wq7olbtfg12:ed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed:3pjw 5eztu6 d. tviw6)rhum; at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm m:.wtupr vj e3;665m)u wdithz ark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC angi i:n.gazd4; 3qpoigg 9 8na/kxy.t.d -7.0 mC are placed at x = 0 and x = 0.20 m. What is9ga8gig.d /xz np 3t:i.g;i.ny q4oka 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 mz4nt3pynjv bsrq t4a a:nt73gg6:(tcc 2n : i3. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of th 6z:3q agn cpi7v3jt4 (ntnbg4:ts2ayt:3rcne square.

  Consider a square which is 1.0 m on a side. Charges ar2 8o,-wwx+x qras4ts gfm j-a7e 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 squqaf+m- owx4 xgatw72js- 8 ,rsare's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a .lpi/mv)7ydsfzncp 6 gm1 n2.uniform electric field. What is the magnitude of t l.) pfis.dnny/vpm 76z2m gc1his electric field?

  A particle with a charge of 4.0 mC has a mass 1 lcz5.xgnshowd )kp.h-a.4d 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 pp )i/c((azbpk laced in an electric field of 6000 N/C pointing di(a)/cp (b pkzownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries .amn ka5ho .1ma charge of -2.00 nC. The ball is placed inside a uniform electric fiek5nma. .1oahmld, 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 mj) csws07hl+ of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the0 w)m7jlhssc + sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Whatsc 3v-n+ ;wyn m-is1mr is the electric field 6.0 m +3syvr;-wnn- 1s imccm from the center of the sphere?