State the law of conservation of electrni-)krh56xctps d;dui 0 7tf;ic charge.

  Is it possible for two negative charges to attr j/l /u0hb3tpxn28ixgk2m8ag act each other?

  Is it possible for a 8j5qy*s srw6fv.pj3b positive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass o5o ozezp/ +x4(*dkjdrod acquires a positive charge and thej o*z5/ +xkdzoo4ed( p silk

  A proton carries a

  The model of the ato+jsmkzo) gx7gppbx + *piu1q 56z/uh4m shows a

  A neutral atom always hasux 89h yzlgi .vu3)fw+

  An atom has more electrons than protonu lzqg* /rl36deal(j 6s. The atom is

  Materials in which the electrons are bound v6xz:,;uue f 3ciid g, :t:: ivfy1rfngery tightly to the nuclei are referred to ,,te:di:ng6xu fzf i3;vfc: ig:r1uy as

  Materials in which the electrons are bound very loosely to the nba8 yv6901klq ue j1gpvg.jr+uclei and can move about e+u06.j rk1 qpglb v a9v1gy8jfreely within the material are referred to as

  A negatively charged rod is brought ne-f1q5dx;d1;a jo sjw har one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod willqhf1doawjds ;1j-x ;5 be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They /kbsceaa1:hlwo 5+v .(7f mbe are placed near e1vam. e hb7lek(+cwosab/5 : fach 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 electroscope positip.kjx5t- ox.ively?

  An originally neutral electroscope is briefly touched with a positimmbf) :4*y n(ng6puncfh2 j0evely charged nf4jce 0(u nh m2g*py bm:6fn)glass rod. The electroscope

  An originally neutral electroscope is grounded b9zgl vx kl:-;1ex/ padriefly while a positively charged glass rod is 1/della z:vgx x -;pk9held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. Theuu6gl j- 7vl0nn a negative object is brought near the electroscope, b0g7j u v-ll6nuut does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A n)+zs td;0 t ysa70jpdfeutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed byt ydpsd;70 tfz) +js0a 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 the Coulomb coj5 +a hn)+ ;fnyz5ywuvnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargeqr4a2pf ek55 uoh0e,yqq04(5ttppxe is larger in magnitude than the second chargtu5o(q f2 eph0t405q yr p ka5qp4ee,xe.

  Sphere A carries a net chabylh +xm 5qwhrln2ok(a5mb5zs2 ;+r4rge and sphere B is neutral. They are placed near each other on an insulated table. Which statm4 2 a w5xh+bosqb2;55k(lrn+ymrh lz ement best describes the electrostatic force between them?

  Two charged objects attract each of5l m+jeuq5c 2sy0lz 9vji3s:ther with a certain force. If the charges on both objects are doub:lljy qej 5 i+5s30fvz 9s2ucmled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive fe-g,wei(gp2ov9x8fn ge p +f3orces of F on each other. If theiw8f 3 9 p-x,+feeggn2v peg(o 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. W qc-5bh* /) 1ry; imh/gnpfflic1gjw-hat happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers i/n /f1 ;h1gw-cj-qlgi bh*cfim5ry )ps reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance offj2h fu+ms5u.6n q9bpsz em: ojkq:13 1.0 m. What happens to the magnitude of the m 6 b3ju19nffh p+zs.5 qouseq2mjk::force on 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 happeixz+irg , sy:)s; guc4ns to the magnitude of the force on the first electron if a second elec4xruz ,:sgiy+c;sg i) tron is placed next to the proton?

  An electron and a prwvoif(3ol ge1h b23o3 oton are separated by a distance of 1.0 m. What happens to the size of the forv le3obh(3 oig o1f23wce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at th7;g s 0, rr*rkhksikz:e 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's center. k ig*; ks0r7rrs,:hzkNow, 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 pnpm8h91sd8 3 7owff xrlaced at the centroid 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 8r1 pfdfo7sxh893 m wnacts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is il mnk hi0eey-o4m5i,0x q9p 8not a vector?

  At twice the distance from a point charge, the strength of the electric fielddhupbf* k0a (5

  Is it possible to have a zero electric field value between a negative and posijf m,yv tf9kpssn211q 1e+a5m tive charge alonaq11 nv,fj2 ptym +msk1s5fe 9g the line joining the two charges?

  Is it possible to have a z)mmxcr0j.m g-ero electric field value between two positive charges along tmcm)xrmj-.0g he line joining the two charges?

  Electric field lines near psitive pointr1,pxrry h+ grg( /ea* charges

  The electric field showtu5r .j ;yuheqeizhks : a+(dg2+5 5jan

  Can electric field lines intersect in free sn:f c,j;g iq4wpace?

  A solid block of metal in electrostatic equilibrium is placed inr (80yhorbz/ b a uniform electric field. Give/h br8 y(rob0z a statement concerning the electric field in the block's interior.

  If a solid metal sphere a pq62rmt- 5h (w qx6 e6f(ebhhd1tinrt,t0+qjnd a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center an(, 6 x hhqqeqw tp256 mt+jftb0(ird-tenr 1h6d the surface is

  A cubic block of aluminum rests on a wooden table in a region wa t3w+k2r n,ok+ upjd0here a uniform electric field is directed straight upward. What can be said concerning the charge o3tw o2dk 0kjnpar ,+u+n the block's top surface?

  If a conductor is in electrostay(w41 cthl4eptic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic n5:setxwc u65sphere that is grounded. As compa5 ue: wn5cstx6red to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of c bdgpx)k+yb8;v 0/nx+is; hrg onductors in static equilibrium.

State Gauss's law.

  The charge carried by one 3qmq4x)pdgyj:k c)9 kelectron 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 charge7m q, 8axpmtju9d(.fb of +2.00 mC. How many more protons than electro x,8dm jfba.(9qpm t7uns does this piece of plastic have?

  What is the charge on 1 kg olw pn 2mm;7+qdnz47 vmf protons?

  An atomic nucleus has a /)x7(*zycwtn:+ *sn1 ftir jz hh4mtv charge 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, have charge values of 2.5fxup3y(ht.8t va9 ai0 and -4.0 mC, respectively. What is the magnitude of the ely haf8a59i v(.p t3xtuectric force between them?

  A 1.0-C charge is 15 m from a second charge, and the /q.0k9 *fi h:8oa /rbrtrk aqgforce between them is 1.0 N. What is the magnitude of the second cb. 8r* qi0/:ot/rkqfr9aah gkharge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are they?q r0 h1uqw*u+d

  The force between a 3.ub rx*2kiboi)rp d; $30 \; mC$ 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. If they 4i,i ; ge /fu(wqphiba( 0zw0bare moved to a new separation of 8.0 cm, what is the elecb0 ip0e(wiu(i4wb;zqhag / ,ftric force between them?

  Three identical point charges of 2.0 mC are placed g sz+ fiab6cb47)l pd)on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third ispa d)g+ 6 fcb7i)sz4lb 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 tp 7(rqn gjk)5ghe x-axis. 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 direction of the electro)k p r57qg(jngstatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mCz+m0 f: 9fnbt3s3yrde at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at0d 3r+f3 fsnbt 9e:zym 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 a second pointxq h5c sgx(l3/ charge of -Q is placed at the upper-left corner. It is observed thxh /5gqx3(c lsat 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, 0.10y,hp 5fw 6+.-+rcy ibj qve5p,9durda m); Q3 = 5.0 nC is at (0, 0). What is theuar e+dd ,56y q+vr5jip,-9fp h.cwyb 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 = 1v.s70kwm.g6bne revkje ,(i 5.0 nC is at (0, 0). What is the direction of th .g.0ve e mek(6,nv 71kwsjrbie net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices qq4pn-*q ww0oxj 5 b*/h o;wpnof an equilateral triangle which measures 30 cm on a sidepb q;wop4wwn05q-ho /*n*qjx . What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +h4c, chaqhq,-g z2d4w4Q, 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 electrostatic force acting on it would be zer2c ,cq hzga-,h4dq 4hwo?

  A +3.0-C charge is at thchiw.eu:k t+uj4m pn. bw 0u7im;6e t5e origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axp0ubuew7j54 6tme:tkwi;c h n.u.+ miis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x =zknms t.g+(tf5* 0fuw+r yx b, 2a. Where can a third positive charge +q be placed so that the fbwsr+ftg 5.k+,(n xufty z0m *orce on it is zero?

  A copper penny has a mass of 3(yl cb ow1;c6 n+s qx7bttahax0a*2( z.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 against the force of fsv9b-0s -tuc gravity by the attraction of a fixed proton some distance above it. Hoscvstu9- b-0fw far above the electron is the proton?

  Two 0.20-g metal sphegg j4a 8k1gvom ;rg45z2a6kgjres are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads is j4makgrgg2aggvo 8146k5; zj$20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is thdluk tp7n: :aoj6)* qze magnitude of the electric field at a di p :azkt*j:nl7 q)u6odstance of 1.0 m from the nucleus?

  What are the magnitude and direction of the el8pt z p-z:x(meectric field at a distance of 1.50 m from -p( pmez:t8 zxa 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is t ,n 13wk7cxlw d).:hr6dojbmthe magnitude of the electric field at t6:croxt73kww)m1dj l. dnh ,bhe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the tl-4pk*kod5evij t: ou *q4+ldirection of the electric field?p *+ dlt ivl 4ku4o*:t-k5eqjo

  A 5.0-C charge is 10 m from a small test charge. What is w ;c0.6y ol++ygib2yeb(scav the magnitude of the force experienced by a 1.0 nC charge plac;i0 ys+y ybwc o+(26acelvb g.ed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dishzafzzn4q 8g6v1n;) - -jbrbgtance of 4.0 m. What is the electric field at a point midway between the 4 b-fhzz8 vnq-1ng)zag rb6;jtwo charges?

  A 5.0-mC charge is placed at the 0 cm markgf ioqcyw9dyc) 2hf9t v 4)1m36eq9 tu of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at thq9e9362hgiy f)cu)twto19cdy v 4 mq fe 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter ste 1 ige8r(xfln 5(ea;nick and a -4.0 mC charge is placed at the 50 cm mark. At ;(15xer(8fea e li gnnwhat point on a line joining the two charges is the electric field zero?

  Two point charges ofb b x3.zo1(q4bterv- u +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electribq3-( 4e1vub b.xotzrc field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. p ggq ug 08la3s vqb1zsij*68+The last corner is occupied by a -is*8s3uvz 8q +g60 1gpbqlg aj3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is e)eo vj*ixcdo4;) art j/gl9 :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); j r)4ac)g ;:ovxoelt9*idj/e-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 uniform electrv8fn(l w7.bzric field. f 7wzvbln. (8rWhat is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mast )imwikcy 9.c y8,e9os 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 ff:i-v 5q2 pegejt-q1v ield of 6000 N/C pointing downward. What charge must be placed on the ball for it to be susp f:q-eqgvp21jivte5- ended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nt ey53inx2 stw,ogb/ ;C. The ball is placed inside a uniform electric field, and is sus3,i2tent s y/g;wo b5xpended 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 mtu )h4 c4:gjskagnitude of the electric field 5.0tsk 4c g4):juh cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charg7gf6- z .zma:7jdwcma e of 3.0 mC. What is the electric field 6.0 cmaz7mw fj .:-azgcd 67m from the center of the sphere?