State the law of conservation of electric.//: dd uwu tagp6z+j7vokoh( charge.

  Is it possible for two negative charges to attract ea:ztpg mq367 sp0psh .sch other?

  Is it possible for a positive and a negab7jr lv.ix5b )tive charge to attract each other?

  A glass rod is rubbed with a piece of silk. During k6 ;7e)qljid1y5qd+isol2i e the process the glass rod acquires a positive charge and the +sk2i)eq16l qe5o ly;djd7 iisilk

  A proton carries a

  The model of the atom shows rci0pu113 l p2sydqu :a

  A neutral atom always hasy0a:yrt 5m5c*tew 7e s0)et qn

  An atom has more electrons than protons. dt hm2wo*u8s8,dq8hz d( 5tilThe atom is

  Materials in which the electrons are bound )7f rk:ukbm6e g0abq5 very tightly to the nuclei are referrkr a0ku5eqg f6b )7bm:ed to as

  Materials in which the electrons are boundyt r5-pt;gwesd(g41 nq2 vd5h very loosely to the nuclei and can move about freely within the materialwnt51stv4-e h; dg5pr dq( g2y are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. Thyuw-8cv o* ik0iszg8p/5 xgtuw1zer3+ c 3,if e end of tzegw 8 +ko 5z cg,vfuysi0iupctx1*-r 3 i83/whe metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are p oi s(+kd* bw336juxyx;+q hbelaced near each other on an ins+6d*sxx+uk ewy;bj3 i (h3bqoulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electro, )le1nydbq5:r* o4fejb dmv+ scope positively?

  An originally neutral electroscope is briefly touched with a positively char2;rf0l-i:lkqr,lh: r h ji meiztj+* 8ged glass rod. The eleci k0jq:jil-hth,2r*:f ilrr e;lz+m8 troscope

  An originally neutral electroscope is grounded briefly while a positively charj(w- t/ pa,pgxu-lis0c * 8d ly,rfze3ged glass rod is held near it. After the glass rod is removed, the electz ,iajtd- x(slfgce p0upl8 wy/,r-*3roscope

  A positive object touches a n- b-.qrl et3 8lrid/xceutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but doeb lx8/ l-qrt.drcei3-s not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A nada 5 - ynb.hhr)mx80oeutral 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 no time does either ball touch the negamhh y80x. bd)-n5arao tive object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constants4r 72zo)imsp $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Th9,uh)s *rc:w *8f8fytn cahdre first charge is larger in magnitude than the second ruc:dc s8 fw*h8n9htry, a *f)charge.

  Sphere A carries a net charge and sphere B is g 7r8v j5:cfz+joo sg.neutral. They are placed near each other on an insulated table. Which statement best desc.vr c+ sj8zg75ooj:gfribes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If thmxiodqo 4xxg 9ah 94+:f-+pnb4 a h:sqe charges on both objects are doubled with no change in separation, the force betw q+gp o94hx44x on fa9+ :b:qimhads-xeen them

  Two charges are separated by a distance ezn/w(6 r/ d.mhty4mxd and exert mutual attractive forces of F on each other. If the charges are separated by a distanceht 6ry .m/e4(nzxm w/d of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the f34enm.c9oyl8vuq vi /9ad h(eorce between them if one charge is doubled, the othe a(om9ve3yduc 4n i/q89lh v.er 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.g ;vbqp3;p7qfv qws28i(* eaf What happens to the magnitude of the force on the proton if a secvgvqq *i(a;8ef;psp7fqwb2 3 ond electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0hw hek(l +70:.xeyffo m. What happens to the magnitude of the force on the firsoe khf hy 0e:w+7fl(x.t electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a disg( tk( , ak(i17h*i8cskk usvhtance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.k7 ssi(g( hac,(v8k1tk*ui k h50 m closer to the proton?

  A point charge of +Q is pdx)bf;h4u cptvnzi. tyc+/ (7hz* h-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/-fvtd;7)*xi (c hybzh+pzp . hc ut4n 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 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 t9rfurl o, ;htia/js) *riangle. 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 pl;ifojsu r *h)lr/9at,aced at one of the other vertices?

  Which of the following is notx*o 7j8: vwl1,iqe tem4l4aez a vector?

  At twice the distance from a point charge, the stg7l bu03 +mlcqft, )rtrength of the electric field

  Is it possible to have a zero elum 3z7dpvg8h a9c6 i9yectric field value between a negative and positive p7uiv6dc8 g 9y9ha3mzcharge along the line joining the two charges?

  Is it possible to have 8. qyn;7xa 4osqhs(bo a zero electric field value between two positive charges along the line jo(sq7bnqsho a;.x4o8y ining the two charges?

  Electric field lines near psitive point c*4u su 3 ;,wrlnani+kgt7 1ulmharges

  The electric field shyp/ pf ;pc gl-bw 7h/h5ivt:r4own

  Can electric field lines intersect in free smsfnb s6+0qk: qnd8c4so(7byh tw58e pace?

  A solid block of metatt 6w-p vwyt9zj)i3qcp:2ym4l in electrostatic equilibrium is placed in a uniform electric field. Give a statement conc3miw6)tc v wq 9pp4z2 ty:-tyjerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters7m t1u,)o2osjvuk8ht are each given the same charge, the electric field (E) midway be8 mvjt uo 1s7uk)2oht,tween the center and the surface is

  A cubic block of aluminum rests on a wgcbm.o 8s9 lq7ooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the chargeqbc798.sgom l on the block's top surface?

  If a conductor is in electrostatic equif8avr+ d+2dodac 9w)/x bue;gz(xcy5 librium near an electric charge

  A positive point charge is enclosed in a hollow metall3evc*v 8r0k5i dnurodk0ml-w2t m. -pic sphere that is grounded. As compared to the case without the hollow sphere, the electric fie -5 lc3kdmkn0rv0.*2mr8te ipw odvu-ld at a point directly above the hollow sphere has

State three properties of conductors in static equilibriae) ee*b(9pf9r fhnj +um.

State Gauss's law.

  The charge carried by one electron nlgzbnmf-nv.8p5m6* 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 chau9x ,yoy+lh.z7za r 3nrge of +2.00 mC. How many more protons than electrons na 9z+.7lhzu y3 xyro,does this piece of plastic have?

  What is the charge on 1 kg ofb8xm07 d7y entx6qbrlp v 1zvm01j84 g protons?

  An atomic nucleus has a char7 jl/*cooq7ea ge 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 cm, haveeu/h6+nrg/ h,xjz x1i charge values of 2.0 and -4.0 mC, respectively. W1,xen/iuz hjr/xg6h +hat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, asc62phs)x*hpm5xg ;(f t e;hxnd the force between them is 1.0 N. What is the magnitude of the second cph(x;m)x cp5s6 *fxt ;g shh2eharge?

  Two 1.0-C charges have a force between them of 1.0 N. How far 8sg2 ,shbux vdao /*lzt/l*6u apart are they?

  The force between a r )3l+wj8xrqf$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 22w fuz rp,ps l/ah 0igfw853a*.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the elecuzr3, 0f*28f5gpl w wh/p iasatric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The fir le9/./*tc q 2kqy3qljl.ok jmst 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 whichqkq 3t9joey.ljq l/2km/*.lc acts on the charge at the origin?

  Three point charges are placed on the x-d9ajf82+sqn r)x zno53lu 5u saxis. A charge of +2.0 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 dinsd 2uj+l5 nx 5zqrsa 89of)u3rection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x o lgu wn+b1eko8+xe-:= 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 m1o+ -l+nux8k oeg b:weC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is plaig ezm(rkqe l8;w1.c*ced 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 of 2.0 N acts on the positive charge at the center. What is the magnitude of the force that actl*ec k81igz;rw (.m eqs 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); Q20fr0t6i+p yf rfo9v: i = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 t0yo v fr9 f+i0p6i:rfnC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, vbz(( +7cum vt0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the nezb7t+v(v(m cu t force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at rvuijf e-,t0 4;d8nv4mq*t vsbpra b 6ia ++j/the vertices of an equilateral tie+;+v0jdftt mrb6ip*nsavjub/q,v 48 ra 4 -riangle 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 +4Q, which are separated ln*pkvj+x2a c;) yvq/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 thkc+la *pv;jnxv q/)y2e electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is a7+4ct whjyy4r t x = 4.0 m. Where on the x-axis can a th4cjrytw h4 7+yird charge be placed so the net force on it is zero?

  Charge +2q is placed at the orl4nftszs 5 sjip) u615igin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the forj5)f6zt 4lpsui ss 15nce on it is zero?

  A copper penny has a mass of 3.0 g. A total ofbth7s5op/ kv zq-rsqy6 (cx04 $4.0 \times 10^{12} \; electrons$ 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 attractio f*lqs:(lxn amem2l.n m;*o3xn of a fixed proton some distance above it. How far above the electron is ths;:ml x f2ln a3xql (mn*o*.eme proton?

  Two 0.20-g metal spheres are huvus( -nf5 8m-b0:ucul rxn 0jdng from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apartnjl5 m8 xrn(ufu-00sv :bdc-u until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge ofm5 n5ll n4v :9e 1die(p6obfkf +40e. What is the magnitude of the electric field at a dist e1 benp f455ldf:mvi(oln96kance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at iyey:tlm6+wjb 92 dq-a distance of 1.50 m from a 6q9:ejy- i y dt+bwml250.0-nC charge?

  A 5.0-C charge is 10 m from a small test charcw 1ubra 7ge*72 qte*qc:c,kege. What is the magnitude of the electric fiuwb2 te g r7k*ec1c*a ,e:qc7qeld at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of thbyiz g) 68qnkv0 :i.u47jvt,ra d9hase electrih,q6y809 sat)4 d7nv:kv a ibig.zjruc field?

  A 5.0-C charge is 10 m from a small t lxg2 /; rom,mz1oby3+z ss3bdest charge. What is the magnitude of the force experienced by a 1.0 nC charbszrz3xl/m2 byg;do1 + 3oms, ge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C m 5xby80z-9r 5* oj6pos hacei*2qrxrand are separated by a distance of 4.0 m. Wh *z j6a2mobe0ir5r* x- xcq8spoh5r y9at is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at thusdvg/5r :finsg. )t,e 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elrs /uvg.f5tg) nid:s,ectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mete:*ku-gwh . pod4axc8fr stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joinin 4ox-:fhdk 8up*gcw.a g the two charges is the electric field zero?

  Two point charges of +3.0 mC toezc (3cio8rm3r:+jqk 0 4quand -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midw+c8 qok(rqr4zioue3:cj0 3mtay between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. .2-l+6lnwsoy tdr tg.(vkd u5 The last corner is occupied by a -3.0 mC charge. Find the electric field at the cent+t.w- 6donvyklrtuld5 (s .2g er of the square.

  Consider a square which is 1.0 m on ar fm+gx); /yq iw-5ty22*xl s6enlp fl side. Charges are placed at the corners of the squaret+f qgl;xpmx y/2-6 fs*n5y2rl liw e) 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 5.0 mC when it is placed in awdw(5jgypv un f++7i 0ksyo0nq04 2yo uniform electric field. What is the magnitudyy+no005 (sndpy2 w kfwv4 g+0ou q7jie of this electric field?

  A particle with a charge o-hp8i)n kwt/7 1r dcp z:q.2w0xsjkjjf 4.0 mC has 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 el.evt-/bi se s li3fp5(ectric field of 6000 N/C pointing downwes - tl3 ib/s(.pef5viard. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.1500d+rsn;qvz:s g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravis;:z +q nsdr0vty. What are the magnitude and direction of the electric field?

  A metal sphere of radijldvu*11v sl n0zi557nj4 t coxsty *,us 10 cm carries a charge of +2.0 mC. What is the magnitude of the jt1szon**lisc1j4 5,xv5 ld vuy0t7nelectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a chargjgqx5+abdm-pf446y7 jm u.x u e of 3.0 mC. What is the electric field 6.0 cm from the center of the sphx4jj 5 u 7p6qxbd4.- mu+fmyagere?