State the law of conservation of elect5 uyg5.)ed63utnrgv jric charge.

  Is it possible for two negative charges to attract eau.lysve :g7t )f7c vklfs4l+/gm/qz6ch other?

  Is it possible for a positive and a negative charge :gm ek- wxdt8/to attract each other?

  A glass rod is rubbed with a piece of silk. During the chg2f ,heh98 tprocess the glass rod acquires a positive charge and the silk hhfgc8t2he, 9

  A proton carries a

  The model of the ato; 6- tl0/,a3 aiz+rvzgjqy pox-g nhm;m shows a

  A neutral atom alwaysiotb3r i1f lt0m*m k( de-v(pq)l;id. has

  An atom has more electrons/mna a /n1v4nz than protons. The atom is

  Materials in which the electrons are bou)m-mb,g.h /+b-.ydf v wmbhomnd very tightly to the nuclei are referred to as -bb .fh-mmh d.+ y,mvbgo/w)m

  Materials in which the elecut.pagc97e*f+w idq; +e, rkhtrons are bound very loosely to the nuclei and can move about freelyd a.h+*fkpeq,uctgrw+7 e;i9 within the material are referred to as

  A negatively charged rod is brought near on7smcuf) o h)4u5kyu k-e end of an uncharged metal bar. The end of the metal bar fsu7u cyok -)um54 kh)farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. Typeo o *cfm247cz4q(lhey are placed neacz e* oo(424fqm 7ylpcr each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged12xog.+t 3k x aoths yshi, xj58u:dj6 rod charge an electroscope positively?

  An originally neutral electros0mndzus:52jb 7s* lehcope is briefly touched with a positively charged glass rod. The ele dlb2:nsjz*s75 muh0e ctroscope

  An originally neutral electroscope is grounded briefly wh iqgu 7j cncr y(3dv:uzr+:6*oile a positively charged glass rod is held n:r+ cogzryu *7dc :juin3(vq6ear it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separatq9 yjd 8sbj3(me. Then a negative object is brought near the electroscope, but does not 3q(8ds 9yjj mbtouch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A ne w3m1qba qxwl/is 6td .796zgrutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic baws731lx ad9rqw6i6 gz. m /btqll 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 Coulomb conse65h; p)h gkufwuzj qf.l/eygqa 672x1 je+b :tant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge c3+vc0+v nszm ko0lg6 is larger in magnitude than the second charg+l00vk+3v mcngosc z6 e.

  Sphere A carries a net qo1f y s;w7ag ust+a3g8.h ax;9eat ,echarge and sphere B is neutral. They are placed near each other on an insulated table. Which statemen,83o7y ;9 qaw xshaga .;ta1f+ue estgt best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges onrc0c: 6 )9rn md/vyaewyipu15 both objects are doubled with no change in separation,cue 0ri9v awr1m )/n5p c:y6yd the force between them

  Two charges are separated by a distance d and exert mutual attractive forces os/0q*fc rj3zj/l2fa f f F on each otherj*jz f/ f2rlq0a/3 csf. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a f*e1/pkubl3 paorce F. What happens to the force between them if one charge is doubled, the other charge*a1ubp3 k el/p 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.p-rm 0p)kq x.mx:mkr are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed n rmrp. x0m:x -k).qpkmext to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens gf8vx04q:,emn uc3a yto the magnitude of the force on the first electron if a second electc03ayqf 4eu: nxmgv ,8ron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happens nk lmr.jb5oe: 5bk fzl;(+noh u)ju54to the size of the mkl+nf(4 )rl.buko5jznj5b;:5 eo uh force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q ot6vu ycxw/ x1yuz-nd n, tsz2mn68 /7is placed 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, identical charges of -Q are placed at the other three corners of the square. What is the magnitude of the net electrostatic6/dzv8,x67 umncszt xw -/ny1no2uty force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the zfppgm:n; 8wa5d,*7bdb u.pzcentroid of 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 cenp dm*up;zg d7 b8pfz5a.,wbn:ter charge due to a third charge of +Q placed at one of the other vertices?

  Which of the followinpmruk*8q+)a eqn-g +ly h2g-cg is not a vector?

  At twice the distance from a point charge, bp*48uqm qx)+ hcjf2qev8 rp: the strength of the electric field

  Is it possible to have a zero ele11c;e e1kge(8 o ijqrictric field value between a negative and positive charge along the line joining the two 11;j 8roikec( gieqe1charges?

  Is it possible to have a zero electric field value betwin(q oz .z*o(leen two positive charges along the line joining thqz noi(lz*(.oe two charges?

  Electric field lines abep y7a 6in46near psitive point charges

  The electric field se l6k x0y +dnjiwn.o8 mifkz)tzqls; 8/s5f*/hown

  Can electric field lines intersectp89hjcvc *vyx .x1t,+ 3 gfshn in free space?

  A solid block of metal in electrostatic equilibribfx,xx+v: /wq drb5 (x;n v,o2he x x(dpezq*;um is placed in a uniform electric field. Give a statement concerning the electric fixxfx(:vbe,x vqw bezx5*( nh+x /pd2o;;q, dreld in the block's interior.

  If a solid metal sphere and a hollow metal sp a ( u-sx4wmnxey04bm+here of equal diameters are each given the same charge, tes0ma u b(+4wmxxy4n- he electric field (E) midway between the center and the surface is

  A cubic block of alumfv fj2tk4kf0 *inum rests on a wooden table in a region where a uniform electric field is directed straight upward. Whvf 2t fk4fkj0*at can be said concerning the charge on the block's top surface?

  If a conductor is in electrostat8rrfz to-7)o7k9z. xo v4ovrja4 r bt5ic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere+ r.llt,* f zpi-kcq2v that is grounded. As compared to the case without the hollow sphere, the electric field at a point directl lz fvrp-*i2+,.lqctky above the hollow sphere has

State three properties of conductors in stati9 km8maa n6m*nc equilibrium.

State Gauss's law.

  The charge carried by one electron is ru;hew-o kvt/yf/rhy 2:, e a8$e = -1.6 \times 10^{-19} \; C$. 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 fq,gtrgf u; z.gv :m12than electrons does tggzu :r12f. fv,qt; mghis piece of plastic have?

  What is the charge on 1 kg -0g/-uayirk7 xvkw 6e of protons?

  An atomic nucleus has a pu/aedwv49td/w fw+.nz u-iwx5 y6*jcharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sepa nkpac+nsseh45,ca(( 8o 9 ubt,gi- k*wgqku 0rated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric fo,n i(a94 n ,okhkt ebu*w+-us0a(8pk5gqs gccrce between them?

  A 1.0-C charge is 15 m from a second charge, and the foxh*y 62 n6snscrce between them is 1.0 N. What is the magnitude of the s* 6 cnhx26ynssecond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far pw0iy.1fxcbg *hhz 08.s)b(qs w/jylapart are they?

  The force between a l s;g(*8mtsql$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apartil;cm0.w 26 ql ,qg)*djiirm p, experience a 1.0-N force. If they are moved to a new separation of 8.00di ) i.im;r llcq,qgw pjm*26 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The pl3 bwrmg:2l3 r-k6d jfirst charge is at the origin, the second lp3dkrg w2l mj:-r63b 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:+p-zcdtl2. f a;wemv x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and2.fmz -ce tpa:lv+ ;wd +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 foll370g: kta5:m o*(i27 lm w huewwgbmfnowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = b(glge7a7i 3 hmmuw2fn ::owkw5mt0*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 place ;ldukt,7,7f *cml5 1w lc4sc+wiurb0t.azps d at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force cm us,wfb;,s* 07uawi7ptl+lkc51lt z .crd4 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,eu2rkjr8z ,3y 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What ieu2yzjr8r,k 3 s the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2dbzg9rh,gizid 9i-c4f rw *-1pz.l7k = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of t1.rizdb9 wrp l,cg f9gzzk h-d i74i-*he net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are0 zk:yhsj:j 7p+spa0 +8iabvq placed at the vertices of an equilateral triv8zj0:sy + p7ij+bap:s 0qah kangle 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 of +Q and + iqbmrr7 hnmufhh f;;ya56w4 y9w q2/24Q, 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 a hhy fh69yir;q m752rnwq 4u/wb a2fm;cting on it would be zero?

  A +3.0-C charge is at t:uqv swz o+tg 2h6j3t6he origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can qotvjhwtz g6s+2: u36a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charg b3lmff*gj; w*e -q is placed at x = 2a. Where can a third positi;b* fl3mj *fgwve charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total qbc7bv9.dkc 9 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 9t;qdf( /va bnz,w-em fixed proton some distance above it. How far above the electron is the proton?9t/m,e v-(fwz;qn db a

  Two 0.20-g metal sphegff7nc 7 d:bt;res are hung from a common point by nonconducting threads wft;bd7c g:7 nfhich are 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. i:v hbv jfa0(+, s raixb3)8 ksc4jv1dWhat is the magnitude of the electric field at a distance of 1.08rvsaf)bjiv0ivkh:1+,(b4x acdjs3 m from the nucleus?

  What are the magnitude and direction of the electric field at a distafwiu2l9 qya n(0qaj 5 qrj,wwpf2l-5nu+c2;ance of 1.50l 0(;9uwfaq 2c2a2lnai+qfq pr- j5,jyu 5wwn m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the: b;0wvrvp8u 4b 3qgttg*l a3b electric field at ta8 vb0t3uw3 b4lr*v gqp;:btghe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direc-tskzo *m -g9h2fjd-xn3r x3ltion of the electric fifot k rn 3s*z32-mdgx9--ljhxeld?

  A 5.0-C charge is 10 m from a small test charge. v 1oneh+6z 6nqWhat is the magnitude of the force experienced by a 1.0 nC charge placed at the location o6q6+hnen 1zv of the test charge?

  Two point charges each have a azvx512dqxx.d rbyk v03 x6/bvalue of 3.0 C and are separated by a distance of 4.0 m. What is the elec 0xa2dxb6yx3dv. bz/v1k5xr q tric 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 -4.0 mC ch;;t5xly 1r ytzh 5d0ikarge is placed at the 50 cm mark. What is the electric fielzi drx5 y;yl10kh5; ttd at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a me2o; * ; jy8crhqohi;dbter stick and a -4.0 mC charge is placed at the 50 cm mark. oh;dcj8obr; q i2;* yhAt 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 u5xxxo-5d 1+ dtu;ggzx = 0 and x = 0.20 m. What is the magnitudt ugoudxx;x55d 1gz+- e 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 m. Thek sc*e5(plzg3 last corner is occupiepzeg ls5c*3k(d 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 i;am d9nj, ht)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 magnitude of the electric fieldnjd mati)9;,h at the square's center?

  A force of 10 N acts on a charge of 5.0 mtlh5equ6:o m5 7a-adyC when it is placed in a uniform electric field. Wh7em5oa t u56qayh d-:lat is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has tltfn amr2 1z;m4xy+2a 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 fic (lyn7j 7nc,leld of 6000 N/C pointing downward. What charge must be placed o lc, lnjn(y77cn the ball for it to be suspended?

  A foam ball of mass 0.150 g c7ub.w,i7ps umd91gxy *suuq r(,.fg earries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. Why9(,if 7eu,1gss pqg.uurmx7b * .duwat are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cmm1d.so qr*uk; carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm frq kdu ;o1*rs.mom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chargen8nopsh h5.:n of 3.0 mC. What is the electric field 6.0 cm from the center of the s pn: sonh.n85hphere?