State the law of conservation of4 gw8 x9xv/caz electric charge.

  Is it possible for two negative charges to attract each o,,q7454 spn; nst/isgjx wx8zc,jfrv ther?

  Is it possible for a positive and a negative charge to attract each oth4s.a0boglyzq*e: k * ner?

  A glass rod is rubbed with a piece2qi vkse:w/q b1uz1,s )2idyj of silk. During the process the glass rod acquires a positi:vwzijk),d 2/2bqsyq1 i1 e suve charge and the silk

  A proton carries a

  The model of the atom shows*bo s;bl ug374k0jm;tfu hu8c a

  A neutral atom alwaymcry 7 e( 6z2r26fortns has

  An atom has more electrons than pron1dhwiuqbud ,n6 ; ta5-*-s.) laua lxqf2)u vtons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are referrd i:.+ft pwoa;t p:widf;+o. aed to as

  Materials in which the electrons are bound very loosely to thwop9q;9bk i i.j r2bz5e nuclei and can move about freely within the material jkoi2b.z9rqp ;i 95wbare referred to as

  A negatively charged rod is brought near one end of an uncharged meti.l naw467jmtal bar. The end ofti n76wjl4a.m the metal bar farthest from the charged rod will be charged

  Sphere A carries a nexa.lrhz 8 ,v3r2bcj3dt positive charge, and sphere B is neutral. They are placed near each other on ac3r8vd abzlj rhx23, .n insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electr:gzr7x)f 460yilfctwyed vw j44j;3pied *h *oscope positively?

  An originally neutral ele wc85tc+9vzl ki0 agb2ctroscope is briefly touched with a positively charged glass rod. c8 zg0bw9cvli52kt a + The electroscope

  An originally neutral electroscope is grounded briefly whi 5gh/tsrp/ z*sle a positively charged glass rod is held near it. After the glass rod is removed, the elezr pghs*//t 5sctroscope

  A positive object touches a neutral electroscope, and the le 6 74gvs,osr2qxrc q:yaves separate. Then a negative object is brought near the electroscope, y 6os7cq4v ,rq:gsr x2but does not touch it. What happens to the leaves?

  A large negatively charged o ivicj 1azg9.ty(*3jqbject is placed on an insulated table. A neutral metallic b q3 (v1jtzcij9aig.*yall 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 ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units ofex70 pu(3pf qi the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatedgwads;kd1 trqi/6 8b+ by a distance d. The first charge is larger in magnitude than the second charge.a8w6 r +dtbg/s;i1qdk

  Sphere A carries a net charge and sphek8xfsp:,(w c /aq2 anfgdr;t b0 /rd5are B is neutral. They are placed near each other on an insulated tabls brqp:d/(a 52 f gra na0d;/xc8fw,kte. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If ty3q/rrad)4i23l6wyls 6v dy whe charges on both objects are doubled with no change in separation, the force betweri/ dd wyy l4sayv 332)6rw6qlen them

  Two charges are separat*xj yb )gcrlpc z4 l.j7,ajc4vp 6gr;8ed by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, whatj g,cy)bpl r7p vgxz4r*c6jca8 j.l4; are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the forci8gs/p/7lk +it1b xade between them ifb781/p /s+ ikdlgtxai one charge is doubled, the other charge 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 distan7 +ysga *)nck5g joeu/ce of 1.0 m. What happens to the magnitude of the force u+gc k)e5s* yo7/ nagjon the proton if a second electron is placed next to the first electron?

  An electron and a proton arexk1 oo(uh* v y e(3lfruo5ho95.tvf/ w separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second eye w l5 fot*o5xko/ h9vuu fo(rv(1h3.lectron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 mv.iar. j/z 8fg. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the protoj.ra./f 8zgvin?

  A point charge of +Q is placed at the center of a square.+ 8bqlz:q7dn fdj grt36zfrmu2 52fg. 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 oj2q8tfg mlr 2f7b+ qdzdfz56:n rg. u3n 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 e cw:jwoo86i :vquilateral 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 to:i woc8jv :w6he 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 vei/e*zs o:: bghcy /)spctor?

  At twice the distance from a poas lje)jatr o.mgy*hfu6ef7 + (q46 3uint charge, the strength of the electric field

  Is it possible to havewrrcd0wjk 5 ;11+x3mz v5zhapgtm79mp:i+ ts a zero electric field value between a negative and positive charge along the line joining the two ch wrkwjm5r9ta+x3 gp7zi1dvzch:+p5; st10 m marges?

  Is it possible to have a zero electric field m h- -dm1m(l yad8h3qavalue between two positive charges along the line joining the two - h8mqm-3 ldyma(hda1 charges?

  Electric field lines near psitive poih tosrgr9/f cy3 3k75hnt charges

  The electric field sho /(xi6xlyexi h0; ,wuk86 umitwn

  Can electric field lines inte5f8ovzzz6m*7f9 ohgw rsect in free space?

  A solid block of metal in elem8 np8w5 tbai2.v x-bectrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electric fiepn2 tw-vba5bi8e .m 8xld in the block's interior.

  If a solid metal sphere and a hollow metal /,9e7 ksc,jz*fb3zkk t ju.ow sphere of equal diameters are each given the same charge, the electri,ewc k.k*, b/ jstk9fzo7zju3c field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unif hld-ib/9o0 t( e: -g/kw fqu5ramuxs3orm el59 mraw-su03 -(dhgx//obtkfq:l ei uectric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electri dwm6bf.- h+wyc charge

  A positive point charge is enclosed in a hollow metallic sphere that is groungqmeqww9 xt-cnkhw0q; c7 (l)1tjn -9)zj az8ded. As complc nw ;tw9qj k)nt7hx)z0c-awzjeq8m1-q9 g (ared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three propertii/ jbm;q l+).7lbxwwles of conductors in static equilibrium.

State Gauss's law.

  The charge carried byw i hki+b5x(;l one 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 2eg -es:y2cbi g .uer;electrons does this 2;- eyie.eg: gbc2rus piece of plastic have?

  What is the charge oxtbo1g)x4 wrobyzb.o8 ;f/7 +:e tuvnn 1 kg of protons?

  An atomic nucleus has a charge,/ pjpi3ln-zp 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 mC, rn )5 :u sompy/ ow.f)b:-lqpogespectively. What is 5):ooosb)mu pg y. l/pqw-f:n the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the fohrx7 lgfn8o /;rce between them is 1.0 N. What is the magnituh7l8 fgn;ox r/de of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apar i u: g/qumoga:-pc4b-t are they?

  The force between a d/ qg8 :1kpv9 qk5 k2a*mf3fyclq:wtd$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.0-N force. If they arket+;f7md tvu si 0s d 22:mqmk-a*ds5e moved to a new separation of 8.0 cm, what is the ele2*kd- te5k ; itv+sfqd d2a7 mm:ssu0mctric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axq ovh/n1;z j2jis. The first charge is at the origin, the second to the z2 h/j;j1nvoq 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 of +2.5v1-q, a/ d(wgzxsnbu)7g jt n0 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 chawsg5agu)qdxj n1-t z7/vb n( ,rge at the origin?

  Three point charges are l,xt7 lhde (h9pk dh1+zocated at the following 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 mad lx9,(1 dphhte h7kz+gnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center7 uqu: os-p:qr of a square, and a second point charge of -Q is placed at the upper-left corner. It iqs7-p uuqro:: s 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 is at (0, 0.10 r g, ,;znz*fzwp y8f mee9cv .0kxp:p5m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 n:8fye5vfwzp; .9m,ezrzpkgn,x 0pc *C charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 q5 . )jlkg zp22po+mdinC is at (0, 0.10 m); Q3 = 5.0 nC is at (02kmzgl 5d.j+q pip o)2, 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 vertice fcnt;(8/b+rbri 9nqms of an equilateral triangle which measures 30 cm on a side. What is the magnic ;tmrn8b /bn qr9i(+ftude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by ,t,cz klhesp7)i4hl 8 3.0 m. At what pointlh,ht, izc8klpe7s) 4 , 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 be zero?

  A +3.0-C charge is at the origin and a m0whfl+6 z/6nhb(lcm +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it 6 6fbnh 0cz(/l+lhwmmis zero?

  Charge +2q is placed at the origin and charge -q is placebpy ;rk a* .r/kcr8kq8d at x = 2a. Where can a third positive c .kra*rpb rq/8;k8kcy harge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A /l- gk/;.ee mugkco0j.yb z3 ttotal 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 grs.i p.h q4bv 81r*tpnhca 7:wo2l;pysavity by the attraction of a fixed proton some distance above it. How:;r41ct87vw.p b 2opsnhy pqihs* a.l far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point byb:mnzmk+ 0/a wzwzh 3/ nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart uzn3 zw/k/m0z mhwa:+ bntil 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 .lnit,g,5ga- r)diisield at a disr,s)i5 gg t.lad,n-iitance of 1.0 m from the nucleus?

  What are the magnitude and direction b6l 3ygn.c ,agof the electric field at a distance of 1.50 m from al.n3 gb,y6gc a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. f-*dtj+:wylsWhat is the magnitude of the electric field at the location of twl d+:-tf* jsyhe test charge?

  A 5.0-C charge is 10 m from a small test nf*) hkw 2z:omny-3k vzxv u68charge. What is the direction of the electric o)kf* wuv8z6xh2 - vk nnm3:yzfield?

  A 5.0-C charge is 10 m from a small test charge. What is the magni: um,2rjh2d n +8oesf(k:eqlttude of the force experienced by a 1.0 h fl ko8s(22:q: e,u t+njmdrenC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a disti;m1max(c lg/ ance of 4.0 m. What is the electric field axgm1( l/mi;c 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 -4.0 mC ln r9 3zjw8g63asca h9charge is placed at the 50 cm mark. What is the electric field at 9 ac98hlrz6nj a33wgs the 30 cm mark?

  A 5.0-mC charge is placed at t euf)9fq m*vgoqck0p6 ;gyf+ 8he 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining 08u +)kcvpf6f myq9 fg gqo*e;the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are place puxcys /lg-.w5c9og -d at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between themx-cg s5co ulgw /y9p-.?

  Three 3.0 mC charges are at the three corners of a/qnawo+bw 38q square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field a wnqa8/3 w+bqot the center of the square.

  Consider a square whicy+t r pw1y94uwh is 1.0 m on 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); -3.0 mC at (0, 1). What is the tyuyr+ww p941 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 uniform n32nm 8::mvw*utfqz welectric fiel mv2qt n 8:z:uww*f3nmd. What is the magnitude of this electric field?

  A particle with a charge of 4.0+g iqp:qk u+.l;/alh b 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 plau 5frkx3 ,cki-:-tzelced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball f, cz3u-ek5:xlirk t-for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball i ahw*m:c .ghi/1f5 h/ostrny: s placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude1ra nfghh/w 5yh/o:t i.:c sm* and direction of the electric field?

  A metal sphere of radius 10 cm carrie9 gc6br w/yxc)s a charge of +2.0 mC. What is the magnitude of the electr6b9w )cyrgc/x ic field 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 the elecsfa)6:l1 pet itric field 6.0 cm from t p:ftial s6e)1he center of the sphere?