State the law of conservation of e / 8uug sbh;cu3z0t)-tku o7kslectric charge.

  Is it possible for two negative 81ya ox(en6k h(cqmp1 charges to attract each other?

  Is it possible for a p.wji 3l4jnxi v5efv5 :ositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process theqmd6cf9 se 0d(e-v5hz glass rod acm cv5de(-szfqh9e 6d 0quires a positive charge and the silk

  A proton carries a

  The model of the atom g,m g(jb m9gi;iz8eri,d;gub0 c 0t5lshows a

  A neutral atom always hatc* xev4,nvj6s

  An atom has more electrons tha n,+lbnxn wt;4n protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refe)vk- igi1z4/8t h dmanfze2-yrred to v zn 2/a hfd8tyzegm1-ii) k-4as

  Materials in which the electrons are bound very loosely to the nuclei and can dfch k,+ lwb48move about fhdw+lf4c 8k,b reely within the material are referred to as

  A negatively charged rod is brought n 1mub:i59m avxoz*ec,u:s y8near one end of an uncharged metal bar. The end of the metal bar farthest from the 9eco:a1z 8 vu,usi:m5ynmb*x charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They aroyj, 3 tobe)t4 +/+vhho6wuai e placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. 3/ h+ tebovth ,4 jyu+)ooai6w Which statement is correct?

  How can a negatively hvbe,zv4ysz.en 15x2- eb8hv charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargfww rvc7 3 ;h06lqbm7jed gla730hjwvqf c7l wr;m6bss rod. The electroscope

  An originally neutral electroscope is grounded brief -kbigtl7zv; 8ly while a positively charged glass ro7 zl; -8gkivtbd is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leqyu h:bdm6- 1waves separate. Then a negative h1wumqby6- d: object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed onrwmi w/k) *kc* an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it tou wki m*)c*/krwches 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 of the .ry k8j+9 ,asljn,py2 yhv c6lCoulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance nv30 af*vlxz2, fd) 0gb(eulk d. The first charge is larger in magnitude (ebg0flkn2,*3lvx) uv afdz0 than the second charge.

  Sphere A carries a net charge and spv3icvekoo ij 9ut41) l/ w)x5dhere B is neutral. They are placed near each other on an o5/cd lvt3 )ke 1 )4viwjuio9xinsulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other withbq xoqwv p3;*)jy/ a4g4+j.ge cf6kgd a certain force. If the charges on both objects are doubled wigxb g qqd.p3y gv6 afc*4ok/j;4w)+ejth no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forces hj rm etam6;wj; h511qof F on each other. If the charges are separated by a distance of d/3, what are the new mutualh1ae q16;jjw5mmht ;r forces?

  Two charged objects attract each other with a force F. What happrlsezwlso 23u e665/fens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between theie eo6suwl6z/2l3 5 frsr centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. 5i ei 3y5avpq, What happens to the magnitude of the force on the proton if a second electron is placed next to the f q3y,5i pa5eviirst electron?

  An electron and a proton are separated byfw3/a czgksx:6rjz : jlg0(xu u)2b9s a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second elfrsk2za)x xgu ::lzs6/3cbgwj0 j(9uectron is placed next to the proton?

  An electron and a proton arz6 6tjc(2p5 m r6htjfge separated by a distance of 1.0 m. What happens to the size of the force on the prot z( c62fj6tgr 5phjmt6on if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a squar0*v gzfr:5wg we. When a second point charge of -Q is placed at one of the square's corners, it is observed thg *f gr50wzv:wat 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 equilateral triangle. Whea.6 h7z x0x5j8m dnhisn 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 mx0 x 8z76is5dh .njahof the other vertices?

  Which of the followingwq 7mbl mlewe0x*6h+ , is not a vector?

  At twice the distance from a point charge, the strength of th1e0 q)m*m*wmv css3xxe electric field

  Is it possible to haven6mcaib2cp f;-:rx6/yf8o i5 oiysvug h.06n a zero electric field value between a negative and positive charge along the line join b6ci/-yvcoao6:rmy 8 0hx.s i 6fn;ngu5pif2ing the two charges?

  Is it possible to have a zero electric field value betweebl d+h 493qqmf(s smaybcojo:wd : n;k6n f-.8n two positive charges along the line (hc+qdsy9 m6-bal8sb: j.w fnn ko odf;q3:m4joining the two charges?

  Electric field lines near psitive poinz w7ixeaz2 ;c,woj2t9t charges

  The electric field shown eg 09ad51n gqdwkcff4; af ows7/8;r s

  Can electric field lines intersechojn h(hv:: )wjspk ),t in free space?

  A solid block of metal in 9isd y- np;7l*n p7bdeelectrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric fie;i97ey p7b sdp- dnnl*ld in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equajax tx((h9xiy 6lh*k5a )jgh;l diameters are each given the same charge, the electric fa h k6(5x9 t*xgilxj;ya(h jh)ield (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a h t2c7vw.tay )tk c(7,gsz-9x(sgfqu region where a uniform electric field is directed stvuh7(qaz(2t- k g)7wccg,t tf9s s.yxraight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibriumzwhxi26 rf q*phy5;tb 6 ;s,ok near an electric charge

  A positive point charge is enclosed in a hollow metalli15ds dg4xb h:52ofvbbzv(+wx c sphere that is grounded. As compared tofb(d5 zw51hsb v2obv+d4 g:xx the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors itptf3r9 kcr( 5m6 m.fbn static equilibrium.

State Gauss's law.

  The charge carried by t v);d0gxq-jn - 9;0k14tfkkhf peanaone 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 nv ctwt/9hp0;e 5vatv9et charge of +2.00 mC. How many more protons than electrons; /v thvtt590cwva p9e does this piece of plastic have?

  What is the charge och8d q7b)g ct(n 1 kg of protons?

  An atomic nucleus has a chargo-z7 1 5 h/aus5gfmk yk1o8t vkssb).te 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 valus+ wkte. kldl/t.2 l9qes of 2.0 and -4.0 mC, ressq. wl e9t2t /+lk.kdlpectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m frz 7luwz26srl*b47svrom a second charge, and the force between them is 1.0 N. Wu62*7szb7lzrv lrs4 w hat is the magnitude of the second charge?

  Two 1.0-C charges have a f aqjqxq3,dp(7orce between them of 1.0 N. How far apart are they?

  The force between a zf97f8 8h8/hvskamqg $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm ap85cpkxza 0rx6art, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is 6 05pxa8ckxrzthe electric force between them?

  Three identical point charges a id9jj7i r:q/of 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 7q ri/dj9i:ja 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 of +2.0 mC is ar30 7 eu7d5c*tmcl r4zlbrq0 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 arerqd5r73cter4clm a z 0 bu7*l0 the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.ne)gnj(7e c r1qq ;m;qcng*5m00 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 magnitude of the force on the 3.00-mCjnnc5;* rq(qe m;cg7q )mgen 1 charge?

  A point charge of +Q is placed at the center of azt fw hl690fo: 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 center. What is the magnitude of the force that acts on the center charge if a third charge of -Q is pfwt zl:o6fh 09laced at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0)-or2qtpho )7 w; 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 -owp )h2r7tqo force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 j;i17 jdj1oprm, 0); 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 force on the 5.0 nC charge?jjp jod 71i;1r

  Three identical charges of 3.i (vmqodpd1r* *r+uc- 0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the (- p1oidqcur+ *rv d*mmagnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0bz,k bqiidy(ay9. g-e 99j2z x m. At what point, on a line between t9(2.ez,b -k zygxj9 yiqbad9 ihe 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 ch7m a ,oi3.vram vur8w8kz*u70 y0jvo harge is at x = 4.0 m. Where on the x-axiy a38r7ukjov v*80,0ao m zv.muh wr7is can a third 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 = 2a. Where;x3z)nv+h9 nao wd4 kd can a third positive charge +q be placed ;z3hnn)4dka w 9+vdxoso that the force on it is zero?

  A copper penny has a mass of 3.0 g. ;ll/k-mck t a: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 fi zdzw4x:7q wt;xed proton some distazx:7w;qz dw 4tnce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common pser gr l4pinq z.:*+*noint by nonconducting threads which are 30 cm long. Both are gi:n+ npq * *gezisrrl.4ven 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 electricz- 4x3jvgy8rmdcp8 /e fiz-j 8c p yx3/e4mvgrd8eld at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field . ,urot)bz; vqat a distance of 1.50 m from a 50.0-n)zu bro;,q. vtC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thhmluu8j -n8 ;aigq w)0e magnitude of the electric field at the location ol8)u-qhg0m iu 8na ;jwf the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the d -o-r :alv0 ,k(habirsirection of the electric field?-ovarrs,b a 0:-l(hki

  A 5.0-C charge is 10 m from a small test ch+9ngko ou:ysh- u5cl 7arge. What is the magnitude of the force experienced by a 1.0 nCghc:+u ln59-os k7y ou charge placed at the location of the test charge?

  Two point charges eacq3wmtplyj*- +j u:wg4 h have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electrigty:uwmjw ql4 3p*+ -jc 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 and a -4.y74sjrqr x tm8,+r 8yv0 mC charge is placed at the 50 cm mark. What is the 4+j yxm q8v7tr,r8r syelectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the *2s/dow8jg11yryi f w0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 dr1owfijyg* /wsy21 8cm 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 anjc6egu rr53/.h3zhgld x = 0.20 m. What is the magnitude of the electric field at the p3 hr/.hg 6 3ujlzce5groint midway between them?

  Three 3.0 mC charges are at the th1e9plr 1 4d*rflkm mc1fdnq.b;mbv7.ree 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 center of the sq 9qfe1m.r1*nfdc l 7vb1d.m4m brkp;luare.

  Consider a square which is 1.0 m onw9 4gd4ud*e4pncpyzfl f/ n j:6 vzl68 a side. 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)ed6c dwn: 8zlnpv4pu *fzjy4 g6l/f49; -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 on a charge of 5.wh7rv83it (ec7r,0pld a m-pi0 mC when it is placed in a uniform electric fier7(re ciwdh0 8i7 pa3lv ,-mtpld. What is the magnitude of this electric field?

  A particle with a charge of p4xwu7:g6q ju,jco )x 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 9 ovz80*lf p(hwkco g5of 6000 N/C pointing do cw(k9*fplo v g085zhownward. What charge 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 placedg0r y kunb.zd/ j7b/s1au.f+ t ind0bst ag.k+/uj7 y/.urb1f nzside 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 12fly xr:cfh),xckk: cm carries a charge of +2.0 mC. What is the magnitude of the electric fielkf:cyxr l khx)1f2:c,d 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is db42qq+ r75o. zez xa5nd8kauthe electric fielrz 5.uoe xqd25q 7da4a+n8kzb d 6.0 cm from the center of the sphere?