State the law of conservation of electric cey5ab/c jkk3(wzdb60r wv+77fcci : charge.

  Is it possible for two negative charges to attract each ote)pe0 .uhqqt,n / l4jyher?

  Is it possible for aqfx5 8 u(f cju,s:,qfnta2krvu3: r7i positive and a negative charge to attract each other?

  A glass rod is rubbed with vui0 c;jo59qm:53vn(uh gipwa piece of silk. During the process the glass rod acquires a positive 0(uv9p5 q:cu5o3i ghi;vwjn mcharge and the silk

  A proton carries a

  The model of the atom m pl +vjd+v 318:;+wqsdk(csz w4bgm fshows a

  A neutral atom always han *duq z*yd6e8s

  An atom has more electrons than protons.5m*u,14o ipl wh e2zydg8eyhb hij4/ ( The atom is

  Materials in which the electron- 0 *h7jos9nll;zdjf us are bound very tightly to the nuclei are referred to 7zs j9;oulj*lhn0- fdas

  Materials in which the electrons are bound very loosely to the nukyf9gpmgn 0.bkcqi8z . c0++fclei and can move about freely within the mc0.cggfkqi8 0+ mb9pznkf. y+aterial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar.9nhsr eros 7.z3a+54la fiav9 The end of the metal barfsrza9.+7a49 s5ve la3rnoi h farthest from the charged rod will be charged

  Sphere A carries a net r*syujv q3n*- positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefns-u*q*3 vrjyly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod czk wett-ji2m:;a8b n8g4moo 7harge an electroscope positively?

  An originally neutral electroscope is briefly touched with a posim+h)2wjier:5h n*gmstively charged glass rod. The electross*jm+hr5 w ) hmng:i2ecope

  An originally neutral electroscope is grounde/lvfxg84)i5k +vz/ rzvau a6ld briefly while a positively charged glass rod is held near it. )rak uzv8+x a 5/l v6v/l4zifgAfter the glass rod is removed, the electroscope

  A positive object tox69m ke4b b8dguches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not 9k4 bbgmexd86touch it. What happens to the leaves?

  A large negatively charged object is placed on an ydnblf ,sy-euqt p xc(ha(4p0)2z98minsulated 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,0)e txpy (89-a24nsuc db(p y qhmfzl, 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 Cou3yfn mavc,,h m*;n1thi-os o3lomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largekxs7kapmw5 51d 2hy;v r in5d ;y xvask12wpk57mh magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are place2 ql ay0-1dmuwd near each other on an insulated table. Which statement best describes theuwy q-adm10l2 electrostatic force between them?

  Two charged objects attract each other with a certaiyffd os3;v (r5n force. If the charges on both objects are doubled wd3 5f(yfs;rvo ith no change in separation, the force between them

  Two charges are separated by a distance d and exert muoed2ch, .2wjh;caxl( tual attractive forces of F on each other. If the charges are separatedcjdhh.wce( a ,; oxl22 by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a fotqg4*yt t0*ljdg+ pl-rce F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distpgl-t+ gjt* lqt*0 4ydance 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.fq;zb 76: qy -s(xlx050j lu izyw7tbi What happens to the magnitude of the force on the proton if a second electron is placed next to the firstx5 s: 7zxyy-0lzu7i b;q60 fjbwqt( li electron?

  An electron and a proton are separated by a d(+omcm 5vedadi*11m x /t 7eqfistance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next tm+/det *av x m5fom1eqidc1( 7o the proton?

  An electron and a proton are separated by a distance of 1.0 m. ziawh(y+n 5it ; o,sk8What happens to the siz oyw n a+itish5;8(kz,e of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q/:p v .bjcuoi1 is 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/ v1jpi:.c oub'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 equilateral tria2bi8e t d8adpyp 94cv(ngle. 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 plac2d ce9tadpv 8ib 48p(yed at one of the other vertices?

  Which of the followi-ct c,pktno- vv(y 5i7p 1l;vgng is not a vector?

  At twice the distance from a point charge, the stren6 jd0s.tc ho n9.y4xj8 5lbbtbgth of the electric field

  Is it possible to have a zero electric field value between a new8ohq x hv*fw,-iw*;qvhh0 y1 gative and positive charge along the line joining the two -w1 hw0qhvwyv* fxh*o,i; hq8charges?

  Is it possible to have a zero electric 8xq8z 6(tu5b-sjh0q zwmqmn6field value between two positive charges along the line joining 8hqqz8 zm 05u-q( njmt6swbx6 the two charges?

  Electric field lines near psitive pointpqvq *fxwy 4v7u-zfb 9 5.oqwsi91 f*v7tm 4up charges

  The electric field sho+b fw 7x8aunr gcsr,2:wn

  Can electric field lines intersect ip4ue2.m tqak1 n free space?

  A solid block of metal in electrostatic equilibriumx,;155.urwf txc0t wg reo8ce is placed in a uniform electric fielr1t ;two. ue 5f,8ecgxrw5xc0d. Give a statement concerning the electric field in the block's interior.

  If a solid metal spherp.(; mhppkkf ;e and a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway betwehm ;.(p;kfpk pen the center and the surface is

  A cubic block of aluminum rests on v 0pc i1z4vpdqt+e(m .a wooden table in a region where a uniform electrivt z(4vm .1cp0 ped+qic 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 electric charur wv9m 163kpifj )6bkge

  A positive point charge is enclosed in a hollow mu g7cf8 r f) -mwpvee.gru- /c9fcn2,detallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point dffg -cc, dfwec 2)p7r.u e gvnr9-u/m8irectly above the hollow sphere has

State three properties of conductors in static :+ /esy(cg 2y(nmrcia equilibrium.

State Gauss's law.

  The charge carried by one e*-:e qm5avys,p /8uex vv;bmjlectron 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 protons8xy3l n. yt3:ljjko)d6is/ p e than electrons does this piece of plasti .x3 p:ytnkjj/il o)s3yedl86c have?

  What is the charge on 1 kg of pr6bh q2jp6ej 3totons?

  An atomic nucleus has a charge n: 52uykqm;1bh bnq+ ohp-x j)of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sepaxwkpq4e 436 nzrated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude opwznkq 34 4ex6f the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force bet1h3); ndj4ss1s t oh;b2 snddymnqfc :)-0cfz ween them is 1.0 N. What is the magn;;zqfn ssnd4d1h32:0 fc )ts sm) -hb1nc oyjditude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Ho+z*0ygt-sa mrxn q;c+ ucyd:w6h5/p- fk odj8w far apart are they?

  The force between a ef-vdq 3lkfq* z +.6le$30 \; mC$ 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)w+2hbm z/je,pt ev;p . If they are ;e/m bh jtpw)2ez,p+ vmoved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are pla9*wzx sazfj im9 0j v .vxe9k*(detp(+ced on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mark. What are the 0.v *vzsa9jx dex9 mt9f*(e(kpiz +j wmagnitude 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 is place5le2u ljq rs3;d at the or sr3l ;uql25ejigin, -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 origin?

  Three point charges are located at the following positionst,9 l;y5 i dcir7,g*2qavq dds: 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 o, ir5ygq vidd* s92 q,lc7d;taf the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point chei5 hp kidi,/0arge of -Q is placed at the upper-left corner. It is observed that an elect i0 iipehkd/5,rostatic 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 m); Q3 =i9j3 ( (s8jl-mhflzjc u2*lgn 5.0 nC is at (0, 0). What is the magnitude of the net ullm3 8hcg(i*(2j-lsz n9jjf 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); Q4+kqzf k r9.60 oqdnn2pep*uq3 = 5.0 nC is at (0, 0). Wha6qpn2k ufd .*zn+q90q pr4oekt is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 marud+v ,oms2ru6/wn 5C are placed at the vertices of an equilateral triangle which measures 30 cm on a u6ow nrsam du+,5v 2/rside. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, whi+zksc silfh *rmlgl9 879h1+kop:h+rch 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 -7* ghh ls91r i 9s l:lr+k+k8hfzmcp+oQ such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +ns l61rgc ba(4wwfr7otmkg;i3 l;/ 3x 9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the wnlw b1frg/ k7mor6ia3;t;gxs34(lcnet force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at xa-le ncqa 38 e-e1k(pqna(:yj = 2a. Where can a third positive charge +q be placedleja1 k(-eqaqy:c3en(-p na8 so that the force on it is zero?

  A copper penny has a mi, iyh yd84pjdd(f;aa* e93gf/ msc*m ass 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 a(lyx: spky5qcc/qv48gainst the force of gravity by the attraction of a fixed proton some distance above iq5y(y/x l4v8:ckcspqt. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a commo9 i*byt w/j9 *t9cuskon point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them *tusbit cok */9yw9j 9apart 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 i-kg advf59-h5wrv:i co 30f hqs the magnitude of the electric field at a distanc5 h :giv-hfqrc3dofv509 aw- ke of 1.0 m from the nucleus?

  What are the magnitude and direction of the elect khtshnh- *q3/zbzm0z62*xg dric field at a distance of 1.50 m from a 50.0z6z/hh**3s 02kbhg dtqn- xmz-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magniey*s8a h1ch4 oer-p8n tude of the electric field at the hro-c*1yh4e8s8e pnalocation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What -1p i4/ 59(mt)hdbugewmmrf n s-ojw3ak+ba; is the direction of the electric field? 3ubptw+b w;fsgmm o/m9aja) h(kn4i -d5r- 1e

  A 5.0-C charge is 10 m from a small test charge. What is h+s5rp 0c jp0ithe magnitude of the force expe psr5cpjh0+0i rienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are sevr9q wk// 3 o,olic;y6iguvr- parated by a distance of 4.0 m. What is the electric field at a point midway between the two ,q9kc gro 6wiui3;/yrolv v -/charges?

  A 5.0-mC charge is placed at the 0 cm mark of av eu0kn/7y,5o ivm hl5 meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric ,enu5ikhvyo5ml/ v70 field at the 30 cm mark?

  A 5.0-mC charge is placed at the 07 hxf0op5k o;y 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 the two charges is fko75;poy0hxthe electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x =q 2t18+ +pob xxdmzfq k24)evh 0.20 m. What is the magnitude of the electric field at thq x)8xvk ed b1pt4hm z+2+2qofe point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. Thmoxt4 / 0q:b rn8:chtqe last corner is occupied by a -3.0 mC charg0qmo8 hxq:4 ct rb:nt/e. 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 cornll7b (ynde x)y29+ar pers of the square as follows: +4 p(n7x +lb9d)ryael2y.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 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 uyfvmu;d7 o1w1niform electric field. What is the magnitude 1;doyvf mwu17of this electric field?

  A particle with a charge of 4.0 mC has a mag9m k;lnhb1r1j 3kpxd4o;t5k ss 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 w(k- u )q cskt,dxj(4c0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspe skdc,jck4w(x( u-q )tnded?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is3g4ormnazg vwdfzq4y *2.x. 2*tgm8l placed inside a uniform electric fiedozg4*g yag.83 2ln2q.zx 4mt*r mfw vld, 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 c:xxt j z-3qp0a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's qp x:z-0j3cxt surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is tb mthb tp.( g4pqo,+8 moo*vf3 :irq)qhe electric field o,rtv ()3itqg:p*.m4hoqobqm 8p+f b6.0 cm from the center of the sphere?