State the law of conservation of electri : f+el 7km7 j7ovttzl*2isj*xc charge.

  Is it possible for two negative charges tm,s,pol3oer,2m3 u gn (dhrx 5o attract each other?

  Is it possible for a positive yx 1h g1;06yj4aqfbhg and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glds3jgtbjlh5 es i .2c2l56*mi ass rod acquires a positive chargm5 le .h2c3 sjsjbiitd6g*2l 5e and the silk

  A proton carries a

  The model of the atom sho nx0di5(p3orp ws a

  A neutral atom always hk3.v+m;cdo ko as

  An atom has more elewx:py( f(vw * gvocm29gvt 8*dctrons than protons. The atom is

  Materials in which the electrons are bound very tight.1oemappxy- 2 ly to the nuclei are referred t.12 mxapepyo- o as

  Materials in which the electrons are t) izq1hc,g)c7mac,;hfd *k8xo v w 0wbound very loosely to the nuclei and can move about freely within the material are referred to adz0c1ofgkt;x 87c m w,cah*qvw,h) i)s

  A negatively charged rod is brought near one end of an uj -lo)* e-flz v2c8x4 dcl-uwmncharged metal bar. The end of the metal bar farthest from the charged rod will c2j-weld*v)c l uo-m48 -fxlz be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are place p6vvne; aq.;pmsv(1 wd near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. (p ;p wvvm1asev 6nq;. Which statement is correct?

  How can a negatively charged rod charge an electroscope pos -sqplx j5:xen 2ovk:ay-fyk1d( 8rr,itively?

  An originally neutral electroscope is brieflyl)-im- jqn g)a)njt x. touched with a positively charged gla -gt)jql)a.m xnn )-ijss rod. The electroscope

  An originally neutral electroscope is grounded briefly while a pos)yfj i 1 vt(8krf0q2roitively charged glass rod i) y1 ok8ivf0rfjrt(q2 s held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral elmfa2 ba*g xd tzn,6g-)xa;y8o ectroscope, and the leaves separate. Then a negative object is brought neart;g agx*m8nf)a- z o6,xa bd2y the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insa+o j r s*+o/.jut.9nuwxenks5 9i-d culated 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 time does either ak+./er9-nu+scndi jtw 9 su x .joo*5ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the C a888 ijmpanrf)y 7/mhoulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a dis 1ydxqffvzg +b,e ;7q+tance d. The first charge is larger in magnitude than+q+7g xvzyb1,ef; qfd the second charge.

  Sphere A carries a net chdm63 /pa65gh9 ois ooqarge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best desos p56a9 3 md6qoh/iogcribes the electrostatic force between them?

  Two charged objects attract each other with a certoj15d;vvonfn n1wm2 9 ain force. If the charges on both objects are doubled with no change in separationnjnnm5oo9 1v1f2d w v;, the force between them

  Two charges are separated by a distance d and exert mutual attractive forcgfvd6ci. ,-uhes of F on e6dc g ,i.-fvuhach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each oe (gv4gufo.cg* 25qvi de3(k fther with a force F. What happens to the force between them if one charge is doubled, the other c*( ufigfgvec d 5 4qge3.kov(2harge is tripled, and the separation distance between their 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. What happens t dui w p9l*03-mynv:kio the magnitude of the force on the 3np 0 iyvl-9:kmdiuw *proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1gsa 0)9 y/1vpaqqncw,z hx:z/.0 m. What happens to the magnitude of the force on cgnqa1s,ax/zvw:q0z y9 h)p/ the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated bi iyhi e/22 7kvkj9*n;:niuwly a distance of 1.0 m. What happens to the size of t2 h/iiwi9nj;:i *ekynl27kvu he force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. Wh 2wdp.9me1hejj pvb ;z3c *rs:en 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 the square. What*1sez 39.d hj; pcewj2 vmbr:p 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 q4 / 6d22jlq6wsrc adaan equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, ans 66/d2wqdlqc4 ajr a2 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 utmamd.2 zg 55c8;nzdnot a vector?

  At twice the distance from a point charge, 3g 5ow /qyma0t:.zl xb9o gww-the strength of the electric field

  Is it possible to have a zero ele0jyfls(hl v 2rff.,t* w:ri4hctric field value between a negative and positive charge along the lr *jy wtf:hfv.f0,i r4l(h2l sine joining the two charges?

  Is it possible to have a zero electric field value between two positive chahfp.ferjv k;42)z 4ly rges along h .4r2pzl)4v yjk;ef fthe line joining the two charges?

  Electric field lines near psitihe0s). g*aehb ve point charges

  The electric field shown*o q2l .klfhl5

  Can electric field lines intersect in free s7uir7,m;i xe40)z0)c7c s1 lqjwokt0csq ninpace?

  A solid block of metal in electrostatic3de4cfoa6dq 2 equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block's intq2 63 cfde4daoerior.

  If a solid metal sphere and a hollow metal9i0h.zsvgn 4b g qz/wls k/r+i6gs,x 7 sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the s6lir s z09,q7zgb wx 4is//+ghnkvsg.urface is

  A cubic block of aluminum rests on a wooden table in y5-m6et58 +k*ajzi nc m n;rlca region where a uniform electric field is directed straight upward. What can be said concerning the cha8ztlkn r;c-+*ci e nmajm556yrge on the block's top surface?

  If a conductor is in electrostatic1-b*( pskodq p equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is gm:)0urny- sble. p-l frounded. As compared to the case s:r ll.pn)yu-f -eb 0mwithout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properti0dqee +dc:6pc es of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electrozt6y6zak/4q7 .x rzdf n 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 protoxo3 s5x3fk2n gc5by:s n )vri0vpz6 d(ns than electrons d vc 2xk55nnr0 pz( vysi b)fdxs336go:oes this piece of plastic have?

  What is the charge on 1 kg of proth:nj/5eaml imq 6ld qe22.x3rons?

  An atomic nucleus ha(n umra)sc0 *cz ;mc)7clrc/cs 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 and 2(-abq ()nkci ( eld;l2uupvk-4.0 mC, respectively. What is the magnitude of the electrica(uk 2nl)b ;-d2vk l(e qi(puc force between them?

  A 1.0-C charge is 15 m from a second charge, and the force be *qfli8v: aq:ztween them is 1.0 N. What is the magnitude of the seco8q:v:qza lf* ind charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are tf0,oz9kfsb ,xh0:wn fsk ,4 qphey?

  The force between a grzmn ,v6)5g s2sm/7jpg0xb f$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiall im** db5ing:9l 5nv/bzc;jh7 ymf)eky 2.0 cm apart, experience a 1.0-N force. If they are moved to*k* /);d nbg7zenml9vi5mjfi5 ych:b 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. s9cs. g5-yw,g es q:he The first charge is at the origin, theh s,esyqg-g 5:cw9es. 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 53lt l,8u ;em ukb*rotof +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 5;3,t loub lteum*kr8cm, 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 located at the fod *4p/)vmpep rq uur0aw8 :a;rllowing positions: Q1 = 2.00 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 o)qe pua*aw;4rpu0d rmp:/ vr8n the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second po o8glp. pm- ik1/jdl1rint 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 placed at the lower-left co.-oiprgd1l1 m 8 lpjk/rner?

  Q1 = 6.0 nC is at (0.30 m, 0); s m(p5n 1panrh;es) v5Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is1h m;rp5pse) ans(5v n the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 l1bkb0eo ,i h.= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the dio,0ib bk. hl1erection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equi5k l5y3li2d g,y5kt kmlateral triangym5 i5 ykk25dgll,k3tle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of5vv xgx og::1w +Q and +4Q, which are separated by 3.0 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 bew:v xg5xvog :1 zero?

  A +3.0-C charge is at the origin and a +9.0-Ca-(7fw4oae z(e xhg8v rt(q1o charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force onao1otz(vea8-e xwhq fr4(g7 ( it is zero?

  Charge +2q is placed- wgv3 : e*,:4igyfen a5fjuho at 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 is z 3:fn - ,euwav*gyoj54 :ghefiero?

  A copper penny has a mass ofd+.l)tu5j j. 1z xld5z,e vwgo 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 attr5qqlw*wu1 pwh -*o5ij 6uoiuh)(e i w-action of a fixed proton some distance above it. How f-p wuihoeqjl qww5h iu*w1(56)u -o *iar above the electron is the proton?

  Two 0.20-g metal spheres area1g,jt.3g 6sk+cgp.u* owq9cd srhg* hung from a common point by nonconducting threads which are 30 .9d1+osgq.g pu jtwg*kccg63r sah,* 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. n/a15bcdfhyph+j;zf d+ 5 aww4. z2vbWhat is the magnitude of the electric field at +hz5yw/ja+h4na5zb.;fd vc w1pdb2fa distance of 1.0 m from the nucleus?

  What are the magnitude and direction of thei 9bcl/7q cw+u/ s/dnt)zse/k+ z1xdpp 7f3fr electric field at a distance of 1.50 m from aq/ 7 9bz1 x +nkfsidcte sdc/3 )rl/+/pz7pfwu 50.0-nC charge?

  A 5.0-C charge is 10 m fro3d7hkf/v.(g t n:t aww-2,y.rki dx qem a small test charge. What is the magnitude of the electric field at the location oy:eg ,dwi2n.t h q k(tr-3kwf/ax.dv 7f the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of*kaec (7ded;ah ij(r* the electric fiel(a*ihkee d(* 7c;jardd?

  A 5.0-C charge is 10 m from a small test charge. What u3t6 qeo r nw i2754fhre9-rqbfo(k1v is the magnitude of the force expfrovk4eqitf1 -ub7 6r(w 5q 3e9horn2erienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges eaclk1k(prsb) / h+wp i5ih have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point mi+rhlpi 1k5swb/)kpi (dway between the two charges?

  A 5.0-mC charge is placed at)d0 gl+iib- h.n- qapa the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 3b- gpha ndi-.+ail0q)0 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter s(mvv u/z9;oxc tick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the m9o(c/zv; ux velectric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at hphkotb9c i3+3 /ov l n;.:o)tbfojr/x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midwayoh :bvo3l3.tpt/ ib oo;j+9fc)n/r kh between them?

  Three 3.0 mC charges are at the three corners ofsgtm b9fa4:f1z3+9wx mhyjq/ a square of side 0.50 m. The last cornex fs94: +t3awgq9/mzfjyb 1m hr 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 sicpu4bwen*j m mj6;t qsd*,j23de. 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); -3.0 mC at (0, 1). Wjmqs d4nu6b3m*, *wej2; cpjthat 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 uno24mm vv a*rq :c/0sifiform electric field. What is the ma 4i/:o20mav smv* cqrfgnitude of this electric field?

  A particle with a charge of 4.0 mC hp. e-pm+tt+tj4 e-. , yomgozaas 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 elec( b6.unxetkj am 2.y(mtric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspendedjub(x 6. ena2.mmyk(t ?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ba6vtb-ybwmh+izy-owfol7 *6- ll is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitud-6b-t+fo vmw i zhwyy*l7 6-obe and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 gqp6ykgx tn51.x.4;;uzdga y fr(e4 lmC. What is the magnitude of the electric field 5.0 cm from the sphere's surface?l zg. 1nd4uyexfrx agk;g (yq56t;p 4.

  A metal sphere of rak;aphh 2g,mj+/ o sht*dius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sphere?mhjsak+t ho phg ;,/*2