State the law of conservation of electric oc:r6748tb ehc 4:ww nsw7umlcharge.

  Is it possible for tw0 j2w/m;f eprco negative charges to attract each other?

  Is it possible for a positive and a negative charge to ate g4i07gpsd3m tract each other?

  A glass rod is rubbed with a piece of silk. During the pro8fnf.* w/cn ern8. olwcess the glass rod acquire*ew 8nfo rc8nf n.lw/.s a positive charge and the silk

  A proton carries a

  The model of the atom shows evj rl70n4yul0-8wo aa

  A neutral atom always hz, x+kra tpokqp x:qr+ /x0;l3as

  An atom has more electronslx1ys6aod- 3 x than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are reft+ta5 l :zy1m0rs1jemerred to asa l m105+jm: eryst1tz

  Materials in which the electrons b-gl;/;)w-t ma zmjioare bound very loosely to the nuclei and can move about freely within the material are ref-ommjzg / a -)bltiw;;erred to as

  A negatively charged rod is brought near one end of an uncharged metal b9eqh 3g80rosfar. The end of the e hs9r8gf0oq 3metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neuti;6hnndo)q* h79o qatral. They are placed near each other on a q*qtnd6;7oioh)anh 9 n insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively chargeq.roal9tg ) /zd rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched win+w-4gf jk) fp : *5paiwdy(bbphtm-6th a positively charged gla:m) g fkb5+nhw* -6jpa(- d4fppwtiybss rod. The electroscope

  An originally neutral electrzy jht*8; w8pjoscope is grounded briefly while a positively charged glass rod is hj8jzyw8 *p;theld near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the ln) zdj56w usv57lgs3meaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to37gvwmnsdu 5)j65zsl the leaves?

  A large negatively chargef6mt;8ql p59c f ,hm(tvqej:xd object is placed on 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 fir m6;8,vxqjhtqf5t: l9pfme( cst 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 constanaeibcfe9n2 :;b8zn o 2q,-d smt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lam rpjdx oh8+50rger in magnitude than the second cha h+omd8 p50rjxrge.

  Sphere A carries a nm*b*en 6s5 ltmet charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the elect*56 lnst*em mbrostatic force between them?

  Two charged objects attract each other with a certain force. In 2f(7we5p t tjd,got/*rhbh5f the charges on both objects are doubled with no change ib2* pr w5h7ntgfo5,t d(j e/htn separation, the force between them

  Two charges are separated by 9k vqm. hynj 54hfx-3:d *cetga distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what a3g dmvh f5yk-c : .hne4j9qt*xre the new mutual forces?

  Two charged objects attract k+a6lqywzba:8i:5ui sn8 / gmeach other with a force F. What happens to the force between them if one charge 8:yim/ :q gla+6kizw8nsabu 5is 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 a0fk-)sn:jl bt distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electrkj0 :)bntslf-on?

  An electron and a proton are separated by a distance of 1.0 m. Whakoejw6kq kyxdj03,8 e06x*z ft happens to the magnitude of the force on the first electron if a second electron is placed nextw0y36ek,8ojx6z jkx qdkf0 *e to the proton?

  An electron and a proton are separneijf*4*onym( w0 t8tf3, rq wated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.5 *4f8 i*wr0qejty,3o(nwtfmn 0 m closer to the proton?

  A point charge of +Q is placed at the center of a square. Wch yv1q1 1cz;qhen 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 oyc1cqz1; q hv1f -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 r,+r3ao /lfkx 5a.fnel:tf6w at the centroid of an equilateral triangle. When a second charge of,nlfkerxlw ./rftao+3f :a5 6 +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 of the other vertices?

  Which of the following is not a vector?yqzv* jw p433e

  At twice the distance from a point charge, the strength of th.;x wh tk3y8odn :wuna8)wwn(e electric field

  Is it possible to have a zero electric field j*k n h1pyzu 37+b0cwpvalue between a negative and positive charge along the lineubhj pk3w 1*y+0nz7 pc joining the two charges?

  Is it possible to have a zero electric pecqh zg vxjcl 3n00-*v.:yf.field value between two positive charges alol xpg*vynqj0v e0.hz:. 3 c-fcng the line joining the two charges?

  Electric field lines near psitive poe)c+2hu byb*q7o rn+ xint charges

  The electric field show9k d+omqn2oa2 :gd v+yn

  Can electric field lines intersef(qlclz;bk72of 6 :mq bc:,hkct in free space?

  A solid block of metal in electrostatic equilibrium isxx3 yaxreasd 3s;9w,/ placed in a uniform electric field. Give a statement concerning the electric fieldds 33/arx;,xw e 9xsay in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal di v -zxr9 63- xareqg1xf70jgwtameters are each given the same charge, the electric field (E) midway between the center and vxxr 9q3j7eg -1r-wz6 xfagt0 the surface is

  A cubic block of aluminum rests on a wooden table in a region o;5rhkp, r b,z;:.myaakfo5f where a uniform electric field is directed straight upward. What can be said concerning the cha,.z ,h;a 5rof pr:ofk5m;k ybarge on the block's top surface?

  If a conductor is in electrostatic equilibriumayp3ci 0p onm7x*7-l x near an electric charge

  A positive point charge is enclosedqwnzz3es gv(xw(r +iy6 8ly 1) in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, tv qris )x wy+z6(8ny3 1(lgezwhe electric field at a point directly above the hollow sphere has

State three propertiee;wogway8 co1f)wd,c ;opmh4 46f7qes of conductors in static equilibrium.

State Gauss's law.

  The charge carried b825fe eoxnqwma*e 3j0y 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 n.2lal u- 7tva/aqr0/q(nmz t protons than electrons does trv/l nq mz0n( -a2.at7uq/ tlahis piece of plastic have?

  What is the charge on9ve7 3s)/u o -5u9orowm3vmml h utjo )da6bf+ 1 kg of protons?

  An atomic nucleus has a charge of 4 -ln86834a nzyx wtx1o twvir$+40e$. 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 9+)9qgyp2 ngobeufsu u+8 * evsm(ci3 values of 2.0 and -4.0 mC, respectivelbe u iev(n9)ugfs9cm+ u3p qosy* 2g8+y. 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 betwe 40*bhcc huf8den them is 1.0 N. What i8hf *h c4ucb0ds the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How f9kmdu0mi-*r rz50qt far apart are they?

  The force between a xk:u:dqajv (3l(9 zqn$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially +x6-bdrzpa;tn 6x.nkd a.+ zj 2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between thjxk dn+ zza rdtbp6..na x;-6+em?

  Three identical point charges of 2.0 mC are placed on the x-axii 69wz2de kf(*:pmld bi sp;d8s. The first charge is at the origin, the second to the right at x = 50 swmld*k zi iep:(p9d fb2 ;68dcm, 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 +2.0w:w+x9 l;.nwgac.abfeyj 80z9 pn /zq 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 charge at the origi+w. wn8nygc.w0z9ep:zqb/ j9 al a x;fn?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x 2fae:q,z6k;8: zj qu)c 1oy gpifkv7 v= 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-mC chargegz 6vu1qi;efq)k, 2ofvj:k 8:pc7y a z?

  A point charge of +Q is placed at the center of a square, and mh i))z.p duf,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 p)z,h)mf dui. placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 k /mdahrys*xkx.2j:0 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0) x.2dmsakkr: /xhjy0* . What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at 7/cix:yuktv 0(0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of ktcv: ui x70/ythe net force on the 5.0 nC charge?

  Three identical charges hajt*fqy48 wihca)v/)yhu/( of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force /)8f v/jth(qauhiac*yy4 h w) which acts on any one of the charges?

  Consider point charges of +Q and +4Q, sih ov,35(3vx ,oie+ (phn t)bmi,tnm6xcc+uwhich 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 be ,x3 xvb+ 3nc nmieci, )ho6ms tv(5p,u tih(+ozero?

  A +3.0-C charge is at the origin and a +9.0-C charge is a/wyukv ,c..k:e.llk rt x = 4.0 m. Where on tck kvyr :,lw/kelu...he x-axis 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. Wher-f7,ix7 t g (w( 0s*eev ( 6ogkkf*hwxvjbgcu-e can a third positive charge +q be placed so that the force on it xofceg7i s7((vb vw,xk*efg--tg(*hj6 wu 0kis zero?

  A copper penny has a mass of 3.0 g. A to7 ods.yb)yvgv pk4m n1+pi5o(g/ns/ otal 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 grav3(,z qjjt zoq0ity by the attraction of a fixed proton some distance above it. How far above the electron is the protq0zt (qjo3jz,on?

  Two 0.20-g metal spheres are hung from a common poin8j29 qjh vdx/rt by nonconducting threads which are 30 cm long. Both are given identical chaxj2/9 8vqdrhjrges, 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 c eqp 5ysh m4q30o:wo(ouyi. 6bharge of +40e. What is the magnitude of the electric field at a distance of 1.0 m fr6y: hp(q5oymq43e.o0w biu osom the nucleus?

  What are the magnitude and direction of the electric field at a distegylx-qi67 0+tu/u rb gx,pn ,ance of 1.50 m from a 50.0-nC cha-b7q0ut ,egu+yp,lig /xn r6xrge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of t-ge(h q2i)q- fyv m *( -s.xihqhdatkho p-k5+he electric field at the location of the test chai 2(q khypfo -+mhk-da-*g hei(vh-s qt.)qx5 rge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the e8e2kurse/ *g)u .vhsdlectric fi*rv/u ghes 8e dsu)2k.eld?

  A 5.0-C charge is 10 m from a small test fj+ hy wze o2q1t1+ft*charge. What is the magnitude of the force experienced by a 1.0 nC charge placw*+f1h y1e2qzt+ tojf ed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are vs)vjcfr1*rznw .;ixf 6d7 vaxq9tr4;c5;eqseparated by a distance of 4.0 m. Whatd 6rxzs; ;tc .5* fnqif1;ec)4wr 9qa7xrjvv v is the electric 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 ) uoxrtdi6(9q charge is placed at the 50 cm mark. What is the electric field at ot6q9x )dr(iu the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a 5scbe85 -j kkkz(,b,rib/c yimeter stick and a -4.0 mC charge is placed at the 50 cm mark5bsk 8(c5 zbyki bc/i,jr-ek,. 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 and x = 2r5xaw r.i/qw 32v;qp.xm klk0.20 m. What is the magnitude of the electric field at the poiq3 vl.p/ xmx2; qrwraw k52ki.nt midway between them?

  Three 3.0 mC charges are at the three corners of a square of side fi 9hg3bafi 0.0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center bi 3 hg.ffia90of the square.

  Consider a square which is 1.0 matg/(/1 r-l rc f:nql2 zob)k)d i)jvv on a side. Charges are placed at the corners of the square as follows: +4.0 mCb)fr2 k)ld-qv(n:c /rlg iv1z j/)oat 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 square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform elen 4q3bk-ckm 8+.) ha jhjbur:i*w u/zkctric field. What is the h/*3 +ukqbukrhkma 8:j. cnj 4-z wb)imagnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass civ itm-w69 j2of $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is placls4 v t,hf9ui2fwea ,vr;y1h, ed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be1a2sl9 h;uhfier, wvvf4ty ,, suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball -rc b9- iohw;ais placed inside a uniform electric fieldh9broi-a ;w-c , 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 char.bzo;:v+t 0e d+h enlshe :q,s 82hgyvge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's +ohl+eth.,gvq;:vz8s02 ed synh:be surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What - nlro4s8)e 7ij1mwgwis the electric field 6.0 cm from the center of the sphere?-grmnsl je)owi 1 847w