State the law of conservatio2pyi y7p esmnmb7)*3vn of electric charge.

  Is it possible for two negative btraeli4(m; kb/ tna/p),h9 v3a hz6wcharges to attract each other?

  Is it possible for a positive and a negative cmef; w 9jls8n)r r/es.harge to attract each other?

  A glass rod is rubbed with a piece of silk. Durlli5 get ,mynsq*9:i, ing the process the glass rod acquires a positive charge and thee *l,:is9n,mg ylqit5 silk

  A proton carries a

  The model of the atom show1y v: fcq59d5n5npdke;ycfg)y6k)hos a

  A neutral atom always hav0d.v raylx-0 s

  An atom has more electrons than proto4iij zpfnl1)2 ns. The atom is

  Materials in which the electrons are bound verdo xxckf.,ledmq. a2tb t03ze3-f/(uy tightly to the nuclei are referred e-emc/kb.a3.2uolfq dzd(,3x t t f x0to as

  Materials in which the electrons are bound very loosely to the nuclfiwnrwr a;mgqwgp*x; *wn/f0 c.6+n-ei and can move about freely within the material arec wr 0pqn+f;.;wrxg nf*6/magn ww*-i referred to as

  A negatively charged rod is brought near one end of an uncharged metal b7x h dadpg+9fh-we*sg(s i)l-ar. The end of the metal bar farthest from the charged rod will be chargeddf)h- wigalg7h-d+p *9sex s(

  Sphere A carries a net positive charge, and sphere B is neutral. They are placeskydu .+a ,+t1bf:qozd near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statemzou qd.ft ayb:1,+ k+sent is correct?

  How can a negativelyzwzi/ ; )ia*pd2i , :cdkae8ut charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positively1l(mp6h - bg5 cqo8alc charged glass rod.56aol -1ccl bmhgp8q ( The electroscope

  An originally neutral electroscope is grounded bri p -pg/m2tzg+er m+pa+p8x5niefly while a positively charged glass rod is held near it. After the glass rod is remove/ tz8+pr2 ggppip-maxe + 5n+md, the electroscope

  A positive object touches a neutral ele)d2, hnw1n)a fcjc:id ctroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the , )2fwc ida1jnn d)c:hleaves?

  A large negatively charged object is pl 8hj*phk zir7io-h 7,en d6s.vaced on an insulated table. A neutral metallic ball rolls straight toward the object, but stops beforeo 67ihj-s*.ih neh7r,pkv8 zd 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 of tupd)qyq ,y 7l4t8ajy p 2z67sihe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance dj xq+dcj895m/xrxt0ewam l7 ;. The first charge is larger in magnitude than 8q xdj70txm /rcmwe5lxj+9 a; the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placen byw tl:7n:o2d near each other on an insulated table. Which state2:b7t :w yolnnment best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charny0 -ei7z cy zz(yy s4-ib0o6gges on both objectz -004 7-izyzb socg6(yyieny s are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mu-ez 0)jrxi67 u jjmg/ptual attractive forces of F on each other. If7 m z)j-gipurj/x j06e the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract enli;; 3n:wg oouxgtor l; d8if e716g+ach other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to o :8g;durxn ; e1 lli7goof;+wn6o3 itgne-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 mb*i9* sb xfvo5 qd80oi. What happens to the magnitude of the force on the proton if a second electron is placed 09 bs io*iqo*f5v8d bxnext to the first electron?

  An electron and a proton are separated by;w4x s49ksu evsnl:r:*sb :tj a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed n4ul bwsj *4:rx ssv9::k;entsext to the proton?

  An electron and a proton are separatedyb ; a+f*ted6z by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m close de6azb;f+y*tr to the proton?

  A point charge of +Q is placed at the center of a squa(2aocbrv. ;xx re. 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,2xx(v. rb coa; 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 cekzu.mx 9yrlclf (vo:9 ce6:c7 ntroid 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 center charge due to a third charge of +Q pcuzly.c( 6xcme r:fl9v 79: oklaced at one of the other vertices?

  Which of the following is not a ;y5f02v kt lmuvector?

  At twice the distance from a poypr0:d r .o- peu3rj(grkg;s (int charge, the strength of the electric field

  Is it possible to have a zero electric field value between a nega1yu,dhl 7xky,px q 1t1tive and positive charg1hyxd,1ky 1l u q,7xtpe along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive charg,u 1ga. lxqs3ses along the line joina1 , q.gssu3lxing the two charges?

  Electric field lines near psitive poivyb ,n;e(6f: uzgvutd bu cirk -5d-72nt charges

  The electric field show3n )1qvb q, )j g+;ce,hldxngv3(fywh n

  Can electric field lines- k530)zkqjopk x;i nb intersect in free space?

  A solid block of metaltgd;kc . e gzhh:b29l* in electrostatic equilibrium is placed in a uniform electric field. Give a state h9te: d*b.gkg;hc2zlment concerning the electric field in the block's interior.

  If a solid metal spher4w ios7bp y:.le and a hollow metal sphere of equal diameters are each given the same charge, the e4 y.lps: io7bwlectric 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 uniform h9qnsm 6(c 92kdwy:tcelectric field is directed straight upward. What can be said concerning the charge on the block's top cmq y69 s(nc92kdwt h:surface?

  If a conductor is in electrostaticn0:da ab q3v1 +kt5pnn equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spheres8j 7+j,7ipj dm*sx uo that is grounded. As compared to the case without the hollow sphered*o, 8js+ s pxi7um7jj, the electric field at a point directly above the hollow sphere has

State three properties of conductorse j 3b*.9 gcsy s4na9szov9m6r in static equilibrium.

State Gauss's law.

  The charge carried by one electron0)b05in;ll aew yr c5u 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 hasilz8.ecn7- igod,/q xog qg. . a net charge of +2.00 mC. How many more protons than electrons does this e 8i,no.z7g ox.g/q-.il qcgdpiece of plastic have?

  What is the charge on 1 l dyx.x39+9+ vc kosrhkg of protons?

  An atomic nucleus has a charge o5wh.tz6a:y u7:ei h skdmgr.6f $+40e$. 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 charg0ttsn(c7+bm b e values of 2.0 and -4.0 mC, respt n 7s(t+0mbcbectively. 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 betxuoquwd* d+c):+3qr cween them is 1.0 N. What is the magnitude of the second+cux)wd*: or3 uqdq c+ charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are f 5il lae1xc9.1xl g1wthey?

  The force between a :jd ft12zpj+s$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiawxm; o8n 5f95luccn8tlly 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 fomlw 8co58fx9;nn ct5urce between them?

  Three identical point charges of 2.0 mC are placed on the x-wd.5 kyxhsar.cqu6c 9z-,2 mplfr 1, jaxis. The first charge is at the origin, the second to the right at x = 50 cm, and tu c25p-c.r .dz1jyfmalx 6rksw, h, 9qhe 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 isamc2kb9s ff ;bn:45e8 ewc)j*q,(fumi d8 d zm 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 fuq,mck(n j*4m 2b;sfd 5b89)z8a iw:fmee c dthe charge at the origin?

  Three point charges are located at the following posit ;nvp*o9 syo1rwqf0 z6ions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0 ;yon *rfw69sp 0zq1ov; 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 placed at the centerz8*w; r oglr+ 3ze8fhg of a square, and a second point charge of -Q is placed at the upper-left corner. It is observedzgf+er 8zwr8 ;l*o3h g 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 = -c,tsfm5q:gmp9o c1*(,wm 8vawv p-cy1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0) wpc- q 1p8f*5sg,9w ,cv :mmat(vmyoc. 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 (0, 0.10 m); Q3 =ul m 8 t.(8cmjsab6u-h 5.0 nC is at (0, 0). What is the dirh8utb(ucl sm j.a- 6m8ection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are pavd,sr d8xl,jodxc e3ywrbu8( /f t++,os k)*laced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the chao b *tw j,ydr+ax)rs,v ,u8dke(/3 lfosxd+c8rges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. 6ajzjokk9 5h81yr9ucAt 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 zero9 oc arhjk186juk5y z9?

  A +3.0-C charge is at the origin and a +9.0-C ti f4o5feo /i;umps at8s;:p/i (oxi 8charge is at x = 4.0 m. Where on the x-axis can a third charge bi/8p;;oxii(psf:smo /f a u tie4o85te placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Whe+2genp 7.k xp* f+ioy;/fid -htbdz7bre can a third positive charge +q be placed so that the foy bb7 k*ih7+dxe;fgpd p.-t/2 nf+zi orce on it is zero?

  A copper penny has a 5bdjiie04hf.n o0dd)mass of 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 a1qxfn u-ad/o 3gainst the force of gravity by the attraction of a fixed -xf3 qou1and /proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconm8 0 ob.jzm7qy2.lffr ducting threads which are 30 cb q..2m7ffym 0olzj8rm 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. What is the magnitude of the electq6 di ,*xtjv;o*- vs:bw:msofric fi q :o6*fsj:dm-o*it;vbvwx ,seld at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electrif*jjt ;/k ukkn;2xv t(y64 cvzc field at a distance of 1.50 m from a 50.0-nC/t vj2*ktx; zky6k;nfv(cj4 u charge?

  A 5.0-C charge is 10 m from a small test charge.1 rb4pe (;z,f :cicle6 k9bhdg What is the magnitude of the electric field at the location of the b:hbp ;l6fz 1ci (g9 kce,rde4test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the dircy-k zy7 t:qb4ection of the electric-bzck : yq74yt field?

  A 5.0-C charge is 10 m from a smr3 lv.n tcd;8pall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at th c3t v8prdl.n;e location of the test charge?

  Two point charges each have fgo x7+)-o gxpri3 vezrgh0.) a value of 3.0 C and are separated by a distance of 4.0 mr.rhxgf v+)0eigo x -z gp73o). What 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 cx 5;ndvjbh:ccfkv )/ 1harge is placed at;:nj )5kv ccb1xfd v/h the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm ma,qux v :dcy) w0emz-;9riwey/rk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the twoyr/zxq)v wm, :edue -yci;90w charges is the electric field zero?

  Two point charges of +3.0 mC and -7.utrf+ 4p*t:jz jx)r1a0 mC are placed at x = 0 and x = 0.20 m. What is the magnitut+a xr *p: ru1)ftjzj4de of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a u j66 esk)h 6*)liwyigsquare of side 0.50 m. The last c)6kh6 *ys u)ijweg6liorner 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 side. Charges are placed at the coev z),o9v8p0y;1adxzxa )u vjrners 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 a1 ;pv)9zz8d0e) xjvuy,v a oaxt (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 al;/rvjw5vlh 0t0d2o q h5ibd1 uniform electric field. What is the magnitude of this eledilwl5t0 rv/5q jv ;dhh0o1b2 ctric field?

  A particle with a charge of 4.0 mC ha0wns 8; qd4o fufyr*bt2y.tf8s 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 z69:v vw2hp9yaus(xr of 6000 N/C pointing downward. What charge must be placed on the ball for it to beasu:ph wxv 6 vy99(r2z suspended?

  A foam ball of mass 0.150 g carries a chargvch6go.sv7 0o6h exm1 e of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electricmo xv.es0 gho16vh67c field?

  A metal sphere of radius 10 cm carries a charge of ;1 2atf tozd:yva(u4 i+2.0 mC. What is the magnitude of the ele a( t 2daioyt4uf;:1zvctric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carrivtz,2e(.n y moj6* wsmes a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sp(vmm .wejz nyo,*6 s2there?