State the law of conservation of electric cq+)nd jtg.td/w .ijd;harge.

  Is it possible for two negative charges to attract eat-e.o1 ixg4y qch other?

  Is it possible for a positive and5 ml(u x q4it1ldsqp9. a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Durinz-dgypnbc7o2b4 (7m4 a0 qynr g the process the glass rod acquires a positive charge and the o z7r4(2m b-gqy07pnyc da4 bnsilk

  A proton carries a

  The model of the atom shows 8lqld-nsdm9s8 (y5d+eh7p zm a

  A neutral atom alwaysdtoy7id )2/c m has

  An atom has more electrons th:jhpe)b)a k f3an protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei 0*wo cgb *p7majux 9q*are referred 9*q puo 7 x*mcb*g0wajto as

  Materials in which the electrons are bound very loos:bw p//;fch.:kqwy1tqy7s qzely to the nuclei and can move about freely within the material are rs.q/1by: tc;qkz/wpq whf7y :eferred to as

  A negatively charged rod is brought near one end of an uncharged metapnsm. h /hmqrg+ 9c63ol bar. The end of gms/c 6n qomh.+hpr3 9the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, 4ci nz 8ne) a2;uzbsq8and sphere B is neutral. They are placed near each other on an insulated table.8ib2 qsnnu;4a8z)c ez Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an elecu;ew arav/i*qrho2 o.8g.su c83my)y troscope positively?

  An originally neutral electroscope is briefly touched with a g0krd(re 9ctf +w5.z vpositively charged glassvrzf(9. 5r edt 0k+wgc rod. The electroscope

  An originally neutral electroscope is grounded brjxzsx /95; 2*ri5j,zzgg ldatiefly while a positively charged glass rod isdxgjjzx,trgi zz2 5*95l/;as held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the +hi9bvy 8rvkt:9tu yig*9kbs)c i*8 j leaves separate. Then a negative object is brought near the e8sh+9:v8irci kb *ubyiy tkj9g9 t* v)lectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table.9pjde2,z2w n 7kxxa3p 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 no time w p2k 9axj37,2e dnzpxdoes either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb co: ggllnll m/98m.1pilnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Theoux7; ))7aec,:;pz 7gf/ifoi qgxm hjf4wu8 v first charge is larger in magnitudqpi,x;wo7/av4xf7 cjuh o7f )g)m e:z;i u8f ge than the second charge.

  Sphere A carries a net charge and sphere B is neutrakazp8x 3 (*j04ly bzlfl. They are placed near each other on an 8l(3yl*zkxz0jpabf4 insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attrva;3)g5f7r2p bx7gitq fr q1 hact each other with a certain force. If the charges on both objects are doubled with no change in separatv5hrrbp 2;7agqiqg fx) 31f7tion, the force between them

  Two charges are separated by a distanvm3-e) hsf ,zhce d and exert mutual attractive forces of F on each other. I)f ehm3sh z,-vf the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Wha6uzfld124 dp 6hqh-bxt 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 toqfdp hhz1d 6x246lb u- one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.*-9wb4hvyq *+zql m rck5yz( z0 m. What happens to the magni yzkyzvrq(+cb*9lh-w5m*4 zqtude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated byflubr*k ej :l(0g jk05ou*y (v a distance of 1.0 m. What happens to the magnitu(* 5j ubelvg y0(u*:fkrko jl0de of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distanceaw+a(mkr*tk-d .-nd.q myr uuj8;u+;3 ipbxk of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to th.q 8;+-par3buiuw x ukm ;j m(rdd-ntka*k.y+e proton?

  A point charge of +Q is placed at the center of a square. When a second 9xn/rxh q;qq-bzb(y*pvm .j- 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 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 z jyn9 qx(;pxh -b q.v/rmbq*-square?

  A point charge of +Q is placed at the centroid of an equilatern.wm jpshqg,2 hhg1+dx4- xm8al 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 onn4h8hphx12 wmgm -x j. q+ds,g the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vemw3v mke+bj8ft0/*zmctor?

  At twice the distance fro) g 1 2*yfinkrhr9spt2m a point charge, the strength of the electric field

  Is it possible to have a zero electric field value bkgd)s:6kn8) sn wd 5/f ;wmqyketween a negative and positive cnfm q) dk;8wdn)5g: 6kskwsy/harge along the line joining the two charges?

  Is it possible to have a zero electric field v8tv w)o;ho-1vmx yxt2 /svd fwgn8.q:alue between two positive charges along the line d1gsv:-y;hwo n/ vf8wtt) mxxqo28v.joining the two charges?

  Electric field lines near psitive poin0x6if.fhpjl npgr1 ,;e, hwe1t charges

  The electric field shh8c p o2r-e +34evtggsown

  Can electric field lines intersect iv :w h6m5a/dr wx(v7fjn free space?

  A solid block of metal wx-o a5 jq07 zgmwtg5dr b0+8iin electrostatic equilibrium is placed in a uniform electric field. Give a statement concez 0i -wqjbdxom7a08w gg55r t+rning the electric field in the block's interior.

  If a solid metal sphere and a ho u 62p86hmgge-2ovomu llow metal sphere of equal diameters are each given the same -8m 6622vhmup ueggoocharge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum restwclz,x rgd f:yv 0(l0;s on a wooden table in a region where a uniform electric field is directed stra;0(lrgl0, zv wdc:fxy ight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an mfic +y5p2ga 9)exo5 jelectric charge

  A positive point charge is enclosed in a hollow m) gry,i4 g*lj-fjz wn2pa)8vzetallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollofv2p*,) an jl)-rw8jz yzgi4gw sphere has

State three properties of conductsz(s yov*+4 k19q 1yrq vz4kgw4txbwgo+79 f dors in static equilibrium.

State Gauss's law.

  The charge carried by one electron msjo.d o0xr 7y5w2jm (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 mCl7pwn-ge hp m3z0+(je. How many more protons than electrons does this piece of plastic havn(e jlpwm-pe7 0+g3 zhe?

  What is the charge on 1 kg of pngetp0og hk/ak62 e )4rotons?

  An atomic nucleus has a charge o(e);ou5lu4swv t k 0bs3s-rsxf $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separat4m w)tz( jsi9kj(j* ajbauv4 1ed by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betweenkw 4tj4av1 jm() jjusab9*i(z them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0bbdw1b9r xwk.rf)4 : v N. What is the magnitude of the ser v bbd)w9kbx.r4fw 1:cond charge?

  Two 1.0-C charges have a hou4tn/t*oj.yfn: j 1force between them of 1.0 N. How far apart are they?

  The force between a nuve li1ss8 a0z+sf e/vsj5, 0$30 \; mC$ 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.b.p shs * knjs1-1b z+rh01l+g/mcyt x If they are moved to a new separation of 8.0 cm, what is the 1 bk .ms1+szgy*hxnl/jrc+- h sb0pt1electric force between them?

  Three identical point charges of 2.0 mC are placed fpz9mrsbj8r*5 ke+9n on the x-axis. The first charge is at the origin, the second to the r j9pmsr +fb nz85re*9kight at x = 50 cm, 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 ch2qvpp3ayq9 qd os31t p 0bm0,farge 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 dvbtm 3p1,qsd 2faqo90 0y 3qppirection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following posit 0js1-g mzmyr)ions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 m0yzj1 )s-grm 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?

  A point charge of +Q is placed at the center of a square, and augvz* s7 ox(5zsokb78 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 positivebs( voso8x5 7z kg7uz* 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 nC245uvtu3no vd is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5nv54u3u 2odtv .0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC h fs bfcb* d4:g4;rz1ld;* znn:hyt6i is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0ndh y:n*;gd4scbf4 :6tr1fli ;z* zbh). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed a70 ep 5x -a+g(joineyht the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the elec n 0a+eh7 j-(xpge5yoitrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which a oz qe6)c uw-) :uprfo0njysv 7,:fxg(re 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 ze ou0 )ofqj6y)v7w, gz(nx:f:sru -ce pro?

  A +3.0-C charge is at the origin and a +9.0-C charyfz)h-yosi . w2w62oy ge is at x = 4.0 m. Where on the x-axis can a third charges oh6zw)oy2 ify2 y.-w be placed so the net force on it is zero?

  Charge +2q is placed at the origin and yyrzx)i/ 28qv charge -q is placed at x = 2a. Where can a thirdix8qz2 vy/) yr positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total ofyu., jqac 55xnlj9js0 $4.0 \times 10^{12} \; electrons$ 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 thealk :1l s5lyo/ x7/9ht9 iq+dnf; vwh,na0vkq force of gravity by the attraction of a fixed proton some distance above it. How far above the electron do7v/w l5qn/t9yh+all vs0,; k1i naf 9h:kxq is the proton?

  Two 0.20-g metal spheres are hung from a common point b8e26. b8lq z0y djrxkpy nonconducting threads whicxyd p6 j 08r8ke2.lqbzh are 30 cm 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. Whj2o22 ul7qc ilat is the magnitude of the electric field at a distance of 1.0 m from the nucleui2l 2cou2ql7 js?

  What are the magnitude and direction of the ea4-x*w voakoo se6d 7(lectric field at a distance of 1.50 m fxsod 7vo6 -ow(ke*a4arom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the ma .fj;p; ws;-jgj1wemygnitude of the electric field at the location owj yjw;mf;1e;gj - sp.f the test charge?

  A 5.0-C charge is 10 m from a smalli,8i3rlo leplo /eh05 test charge. What is the direction of the electric lp5le 8 3ii,0 l/hoerofield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude offz8(0e4 ab h2 psfuslu:b-lt 8 the forceps-eza4ufu8b :t0 s82hfllb( experienced 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 separated by a distance ll05ig1x)ny r1lscw1 of 4.0 m. What is the electric field at a11yc5lxlnwsl 01i g)r point midway between the two charges?

  A 5.0-mC charge is placed at the 0fee+ s6yja/p2de 1gw 3 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electpf gy 362/ +adseje1ewric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a mvy2k5( t +e9ojq(ni yfeter stick and a -4.0 mC charge it (vik9ye5+jyo 2fnq(s 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.xo z-f: nqq2oqj.l, )qpt gi(70 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the elecoqqqf:z(no.t) , q7i- 2l gxpjtric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squ4u q3z7qx 3qta63we+zf/ kc jeare of side 0.50 m. The last corner is occupic47qu63zqxe3+ j / takweqzf 3ed by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square whiryle qo4 +b,o:ch is 1.0 m on a side. Charges are placed at the corners 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 at (0, 1). What is4oolb,rq+y:e the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC w*-(,v 4tfgnxki tn+srcpi+t4 hen it is placed in a uniform electric field. What is the magnitude of this electric fiel,gp(ts+i 4 titvkf*n x4nc r-+d?

  A particle with a char7hrh*7 f8cb2izj6( s k /wwncege of 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 elecw(), (h.hzt 2zrd ofr +d7kooqtric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspendedqfrk(7+zztw,(2oh .ohdr od)?

  A foam ball of mass 0.150 g(z6endl,gb + y9jv :9 kr7tdzzq25pj p carries a charge 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 t2 d tvzk 9q,p5+:y9rpnj jzbge(d67l zhe electric field?

  A metal sphere of radius 10 cj8pnmv9,g c -im carries a charge of +2.0 mC. What is the magnitude of the electrvcj9nm ,i-gp8ic field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 r2q z6v.stv4q9 b9tjma;+9qzdkv) zncm carries a charge of 3.0 mC. What is the electric field 6.0 cm 6;z jz9vsn92mqark)zdtq4 +9vvtb q. from the center of the sphere?