State the law of conservation of electric charge.m w-f1; tzis;v2atdq0

  Is it possible for two negative charges to attract each othhv,g8 5jp5 dio;-mptser?

  Is it possible for a positive and a n c ;fx6fr )veu:cf6r;begative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass rodku9 f+(ymro41zb- ud)d9nvaqwv 3/dd acquires a positive charge vqrv9zdd m43n-f1d+)/k do9(ywua uband the silk

  A proton carries a

  The model of the atom showu(g29n67 nc ij*a vrmis a

  A neutral atom always y4yy,p prnldct76ylswcb ,(0m+ 4q5r has

  An atom has more electro+ihb wvn79 hww ;um43uqh0( hrns than protons. The atom is

  Materials in which the electrons are bound very tightly to ;9spkv0,lbtfnz c/7 q the nuclei are referref79b t ,pq;/0vskzlcnd to as

  Materials in which the electrons are-m /obb 1dwg5tyi3/3r g6qnceprax*0 bound very loosely to the nuclei and can move about freely within the material are referred to 1r6 b03 i5*3oacbt r/gym gqnw epdx-/as

  A negatively charged rod is brougcn.vah6v3,dt4 s6vbo ht near one end of an uncharged metal bar. The end of the metal bar farthest fcb, h6n va.4s36vvd otrom the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. The )hje1ql gf xk4/0:mbny are placed near) l:xn/1he4qkm gb fj0 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 charged rod charge an electrosco 09lnpvrj u2h.0nkb;3 5stvqgpe positively?

  An originally neutral electroscope is briefly touched with a positively cdqb2e-d6ccz7 harged 7q 6zd cd2e-bcglass rod. The electroscope

  An originally neutral electroscope is grounded elhw2 lkh 1)ay3mbhcw/f6t4r w7 7 k-6df,q sgbriefly while a positively charged glass rod is hel4hl,2wrb k cgh/ef lwyh7qd-s7 aw 1mk66tf)3 d near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral ele(rc h,fhhqcn 32 8l.b.b6njiactroscope, and the leaves separate. Then a negative object is brought near the elq inh6.c(bc3rhb,j82af. l h nectroscope, but does not touch it. What happens to the leaves?

  A large negatively chargmbqj3bsa(n3 w; e r,+hed 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 first ball, and stops. The first ball rolls forward, but does not touch the negative object. At eq3r (wsah,n+b j3m; bno time does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the;1bm, lm u cqchs0*+vb Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargb lw f;2h g1ot86hw5kre is larger in magnitude than the sec;h1bg fh8ow t26lr5wk ond charge.

  Sphere A carries a net charge and sphere B is neutral. They ari/ 2z-- i8o;gvs,ysi hqj0ekye placed near each other on a ;osk2h--v q/e,i8 i0yjzi ysgn insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the chx:i 7fmuc 1 vqx5jk)(harges on both objects are doubled with no change in separation, the force b:fjuv(m1k xh57)c qxi etween them

  Two charges are separated by a distance d and exert mutual azeb(l1sgii43h e,p- rgu u3+ jttractive forces of F on each other. If the charges are separatedr3 eiesl,p 4h +b(zigu -ju3g1 by a distance of d/3, what are the new mutual forces?

  Two charged objects attract eap sa86 l6ks ;dmxvfrui27p*a.ch other with a force F. What happens to the force between them if one f*sp8x6 l2ksa;7u vr6a idpm. 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 distance of 1.0 m. Whaoh;*eon / 8l wnhswa09t happens to the magnitude of the force w9whhn 0sn;lo* oe/a8on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What h1gn)+t : 4pmiv9j i/0l snqwzaappens to the magnitude of the force on i atgp/01zm4lqnnv)9 j:ws + ithe first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distancee 6u7dsou mcyckx)e*y-h4u 3) of 1.0 m. What happens to the size of the force on the proton if the electuu3uys6h-*yoec )7 d )kmc4exron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second poindfc d./ hji8fyk6u5+m t 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 cha i5 dd/m8.+k6fjyfc hurge 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 at5okkad.6vl u 5kr97th the centroid of an equilateral triangle. When a second charge of +Q is placedd575k otklakurv 9 h6. 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 nr:( hu8jg;kxzp .bn:zot a vector?

  At twice the distance from a points8u+ggroll 0-u)w v7i charge, the strength of the electric field

  Is it possible to have a zero elec. g7kvbb.v oo) )*losbtric field value between a negative and positive charge along the line joinskvo7o bb.l ) )g.obv*ing the two charges?

  Is it possible to have,+ b.4uqhy vgi a zero electric field value between two positive charges along the line joining the two charges?g.q4 bv ihu+y,

  Electric field lines near psitive f9ac r(eyr5ajly bu( (0id0 t9point charges

  The electric field sh erqkwk106p)( fhelg4own

  Can electric field lines intok ewr66b.0dd- i1vucersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a unifojfad:dx+k0e8 p0l+ y brm electric field. Give a statemenkd e 8abfd+ljpy+x: 00t concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamet;)awl2 59-vb yzdxelf ke)rn/ )igad9ers are each given the same charge, the electric field (E) midway between the center dz 5y /)rlafw 9e2)xbn9d-gk)a evi;land the surface is

  A cubic block of aluminum rests on a wooden table f0npmi4o w thz5 s-2*win a region where a uniform electrim0wot-s 2*zf4nwp i5 hc field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostaticp(eu6vm bejz,c+ urv) +p,y 4m equilibrium near an electric charge

  A positive point charge isfb731pg;juc nuyx/e- enclosed in a hollow metallic sphere that is grounded. ;fucbuyegp x/-n3 j17 As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in b iqkn-lcp/69i)1nx sstatic equilibrium.

State Gauss's law.

  The charge carried byl 1na vt9px.c. 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 tr 3,lrrno ;.dz7 hu)qshan electrons does thiz.r3),7hn lqs;u ro drs piece of plastic have?

  What is the charge on 1 kg 7*qwr xyf;x w8of protons?

  An atomic nucleus has a charge 0u;7by:t xu(58tf xgv*oxxxe 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 cbffl91z4() ,ya4 rmo4lwvmvbm, have charge values of 2.0 and -4.0 mC, respectively. w v4fvyr(b lbf,mm4oal9z )14What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from ax2 c(oq(3v dfy9ybm8i second charge, and the force between them is 1.0 N. What is the magni m yvcd(b98of(2 xi3yqtude of the second charge?

  Two 1.0-C charges have a force between th5)v p(rwl2ilf7mn y t9em of 1.0 N. How far apart are they?

  The force between a azw kl ,6nn 40xr8i5l*zz)yja$30 \; mC$ 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. Ifd)i4z fqbi5xao3;9 7i wcww(pd7v .v g they are moved to a new separation gvw.qc7 wfbp( vdwi4a3io9 i5x)7;zd of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 c9v ,vx-ti4- 8sw g-gh chz2mf;vrx4amC are placed 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 magnitude and direction of the electrostatic force which ac -i-; 4 mrcxh2tg9w v4xgvczh-v8sfa ,ts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC ju)lbt 3qi3 3ys(m;qz 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 an 3m utsylqzb3)3(;qij d direction of the electrostatic force which acts on the charge at the origin?

  Three point charges ay,h8 puja2a;p)be f8cre located 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 magnitude of the force on the 3.00-mC charge? ac;pp8yj8 hu2fba,)e

  A point charge of +Q is placed at th8ub+s3k( ui7o n8r ypeat +p6fe center of a square, and a second point charge of -Q is plac p 8 67(+uiafe3ypst ukb8n+ored 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 placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, /mx.i go(ixm7mh hcxi2a+;/u0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude i; ghi/xuhcm.(2i+xm o/m7x a of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 9 5i6l:ijmib(l:ry4f ujkts6 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). ml(l6i k:s9itrjy u bij5f46:What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plgk9 w3: 9r8w9nnw7dsk e w)wckaced 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 charges?w gw9cw r9n3n9swkd:8 kk7e )w

  Consider point charges of +Q and +4Qj9k :r57za- zpul7 y13bslcat, 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 electroab kl 9-jsl7pz7zryt:5 3auc1static force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Where on mr2r7gf+aq ;p k3gl e6p+p.vathe x-axis can a third charge be placed so the net force on a6p kpav .+r+2peml gq7f r3;git is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where (e rer2j,9l rzcan a th2 9re (l,rrjezird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tota (4yae pt8fk.)vkvng, l 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 agaitlxy 5o 5 -se7bes+ho*nst the force of gravity by the attraction of a fixed proton some distance above it. How oxslo bs e+*7hyt55e-far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting do6 jxqr .brh:xq 1qm +7tfw*4threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle betw6x4hrw*1 qx mq.foqtr :7+db jeen the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is th vxbq ,:cpx 4e4g9)p67ypupsre magnitude of the electric field at a distaxcs p,x4:g6)r74 yvb9p ppu eqnce of 1.0 m from the nucleus?

  What are the magnituv:n (e wy clduc5a9hw r(+oky :v)s8 9yx5wp*nde and direction of the electric field at a distance of 1.50ux) y ovw+95pcwwlc9ad e((y v*8ks:y5 hn rn: m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. fnv8hz* qlh7ye2 u7f9b-x /dbWhat is the magnitude of the electric field at the locatione 87b*bl ff-hy/ vnzh du27xq9 of the test charge?

  A 5.0-C charge is 10 m from a small test ch,dw+ z4huhia yh* a:tu*n9cpad4ga+ +arge. What is the direction of the electric field?,+zu:9*+hc u+ah gd4 haa it*w ypnd4a

  A 5.0-C charge is 10 m from a small test charge. What s ,1h pfrc4*fcis the magnitude of the force experienced by a 1.0 nC charge plr *fc,fs1h 4pcaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separ1bupt( 8+-gjlclv x/ lated by a distance of 4.0 m. What is the electric field at a point midway8 1 lblgp/tvl -(+ucjx between the two charges?

  A 5.0-mC charge is placed v,ge r802:hh)kxcu 0t teqw f+mf1w e2at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the e)wve20qtkxrw, h0em guec 1 t8+ :hf2flectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a sj,1b*ndoam1 n rx. elf3p4w6 meter stick and a -4.0 mC charge 46a xnjmler 3 fn1sw*1obd.p,is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 lwx v 0oky )/.xngw:s2mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude oo nk:xvw 2y.g0)lsw /xf the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of se/ 8vzgvnw4l)ide 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electricn/g)ve4lw8z v field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed6(x j//wfsn ni at the corners of ts/6 i jnf/nwx(he 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 field at the square's center?

  A force of 10 N acts on a charge of 54cqipswgk7g1r6t1 ), d qv,f7b smd ,v.0 mC when it is placed in a uniform electric fi msv7fcg)1 47t,rksipqdwb,d6q ,g 1v eld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a jc8yj l rvflas r.- i n4rs3c0p:h5 c/yq5l+9wmass 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 gr/z1pu slta kiv* :n2vosbdmk bp,+64t l+ -a: is placed in an electric field of 6000 N/C pointing downward. What charge must be *+:+no,ds k sl: z bt-mkvptr1up6il/a4 vb a2placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charx vo4bz4lxic )9)7m irge of -2.00 nC. The ball is placed inside a 9xvcr)) xli7z mib44o uniform electric field, 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 charge of +2.0 mC. What is the magnikkko)*zf/d*v tude of the electric fielkk of*zv *k/d)d 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chargefr4 vqnfy ,,7h of 3.0 mC. What is the electric field 6.0 cm from the center of the s7 r4,nhyff,qvphere?