State the law of conservatxbji fkc4fr:.(a4.ll ion of electric charge.

  Is it possible for two negative charge9vz4 +peydr t6s to attract each other?

  Is it possible for a positive and a negative charge to attract each othn xdk76y ;yae9er?

  A glass rod is rubbed wit4;ytozm(qi3+ wuy.b g: s:bbfh a piece of silk. During the process the glass rod acquires a positive charge and ty.+tu4:(m:bgbwyz ofbq3;i s he silk

  A proton carries a

  The model of the atoms,2 cdp d:vc5;.azfkh shows a

  A neutral atom always f w dchk.uhcfen/0 z(q8f025s2gm 6bxhas

  An atom has more electrons than protons. The aw; 2j tq2u)zko p+4tfdtom is

  Materials in which the electrons are bound very tightlyv*.ws qu9 s-/ue(scco to the nuclei are referred to uqe(w s*- scvc9 ./suoas

  Materials in which the electsf.f 7sbw,g9irons are bound very loosely to the nuclei and can move about freely within the material are re.bgs97 f w,fsiferred to as

  A negatively charged rod is brought near l z pf(*(ghi :iit1stymm4v:.one end of an uncharged metal bar. The end of the metal bar farthest from the charged rodm14 iivmip ::fzs t*lgth((y . will be charged

  Sphere A carries a net positive charge, jn(6cof- w7jrj c/p:2g .gnneand sphere B is neutral. They are placed near each other on an insulated table. Sn7 o.- ernjc6 (2c:njfgwjpg/ phere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod chargl1 ox cf80n9 aeszu2a/6 rktj)e an electroscope positively?

  An originally neutral electroscope is brieoy7o5 oy* cjb2fly touched with a positively charged glass rod.*oo5y7ob2 jy c The electroscope

  An originally neutral electroscope is/fi je et9y2b5a)b.ai grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the elect bte a.ei/yf 529)iabjroscope

  A positive object touches a neutral electroscope, and the leaves separatecn-fcvr 0pg ,qw -x6w4. Then a negative object is brought near the electroscope, but does not touch it. What happens to the qx-64cr- ,w w0cvgpfnleaves?

  A large negatively charged object is placed on an indt)+i: kr85fc+mwcs q+ ba m)isulated 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+mb cd5r a it)f+8)kcwi s+mq: 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 ujv7ic bv+ s)oxbm(:)constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firstpz c+i1 iue;u*og36et charge is larger in magnitude c3ieu*utgio6 ; +z ep1than the second charge.

  Sphere A carries a net charge ar gva;1mq8 5tqnd sphere B is neutral. They are placed near each other on an insulated table. Which stv gtmqaq ;r815atement best describes the electrostatic force between them?

  Two charged objects td -k 29vnn :jtx6w;qxattract each other with a certain force. If the charges on both objects an -n9q2tkxj;6wd:xt vre doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive ft4 w d:+al3v- jdziy;mu0,kdlorces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual force,du+vwkyi:4- ljd ;dt am03zls?

  Two charged objects attracuy+ g;hosntn:bb9 7 /yn;m f-hsx-2sqt each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their ce xg-shsb/y9 h+7 snqn;b -tnmy o:uf2;nters 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 1t:(8a c8wrwsgl(vn5hsa9 :gcvj :ad (u2b2xp.0 m. What happens to the magnitude of the force on the prs(cxpvbjg:w8 22cru 8asth( lga(w: a5 v9n d:oton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a diam5 0cf y/( q3bhqqf,fstance of 1.0 m. What happens to the magnitude of hf0 (3 /bf qyqaq,mcf5the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Whacm*v.lj z s36nx;1lrft happens to the size r* l6s jnlv3 m;xfz1c.of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q 8o rk3sofmu+;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's centeruo fs83 ok;m+r. 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 equilw,/nw3 rsu xuv6tt) 3am6n)o2ep ojn8ateral 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 on the center charge due to a third charge of +Q place 3mura ,n668/su)3n2xpoo )w etvnwjtd at one of the other vertices?

  Which of the following 1+ rwv-v:,z8 egt(u r1yxhwq z qk1fo9is not a vector?

  At twice the distance from a point charge, the strength of the elect- yd 2u2m6o/sbo i..n3vzkjooeldr /0ric field

  Is it possible to have a zero electric field value between a 6akcyd .6xcgcw(j) k i+azup59m). qpnegative and positive charge cqy5jka.mpc)6 ud+gkc.z p)9ia ( x6 walong the line joining the two charges?

  Is it possible to hazx;tu ix 6np-6w*z+a.r4v:) vrqn hksve a zero electric field value between two positive charges along the line joining the two charges?ivh : ;p z)vx 6kw*rt-64+auz.nnsqrx

  Electric field lines near psitive point chargde0(--mmvrj7tbfb *rn q )x3 ges

  The electric field st bx)-a 6 ,vcxcnigs+j78io: chown

  Can electric field lines intersect in free96 z:pd)3 sx ngi6nxvx space?

  A solid block of metal in electrostatic equilibrium d-.ggjed3)xj is placed in a uniform electric field.jgx. j3-eg d)d Give a statement concerning the electric field in the block's interior.

  If a solid metal sphe 4sgz7ojgl72 u;8ik-.i fpx- zcmxj-cre and a hollow metal sphere of equal diameters are each given 2czij;u. i p4go -7xfx-s7lk czmj- 8gthe same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in i ihl7on;97h 3gmw-lyzq : oh-a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surface 7-ywnq h7 gi9hi3lzhoo:m- l;?

  If a conductor is in electrostatic equilibrium near 3a f0vkg0kep2an electric charge

  A positive point charge is enclosed in a hollow metallic 0(pbprutbn 2v+a0 do+z t4v9 ksphere that is grounded. As compared to the cas+ pov2k(40n9bp udttab v+z r0e without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static eqig)xik.s :hgqnx/8. 2c q )ylhuilibrium.

State Gauss's law.

  The charge carried by one electron .qg zqn8p vyq8, fuotw)0 :rh3is $e = -1.6 \times 10^{-19} \; C$. 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 than v,dmwohfvl jd49ad ;4c3b56lcm-o3 belectrons does thfo ldd ,hlvc3o6 b44b9ac 3wv5mdmj; -is piece of plastic have?

  What is the charge on 1 kg of +,8nj5 o pidw4ufawkg(u1fbnp 1 8.ynprotons?

  An atomic nucleus has a k *i, h0dj0nip*:nocncharge 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 25 ne b9(n9td/fbxst3/tx0axs.0 and -4.0 mC, respectively. xe(b9nnxs5tx tba 0f/ t39 d/sWhat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, andpq:qpx2 8 )el+jl 7qju the force between them is 1.0 N. 8plu)x :qjq+ ple2qj7 What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Hkh en:5j ;kff)ow far apart are they?

  The force between a 49 tpq 3ss pcu295 flyh8ce,vo$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experien 9oyb5q f)gxj)ce a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electrg95ofb) j yx)qic force between them?

  Three identical point charges of 2.0 mC are place -,m1jzwbrjkzx 0eko0u s- 4(ld on the x-axis. The first charge is at the origin, xw4l--r bz1j(ko um0zjk,s 0 ethe 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 acts on the charge at the origin?

  Three point charges are placed on the x- hz3 22 pm3nc 6yb+0dqxnvfx45 1reultaxis. 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 electrostatic force which act0zyvhc54b+x pt n2ef 3nx2 uqlrmd 361s on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at8fcco/m 0 /zbw 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 cbz/mcfo/08w force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a slzgva.*zhcx)c 1q1- h econd point charge of -Q is placed at the upper-left corner. It is observed thaz q.x a1vh-)zhcl1g* ct 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 = lofgen p(hwxuc99/.8 -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What ise fo wl8.(ucphgx9n9/ the 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 = pct ,lo 8g +w6x+rzn:v5.0 nC is at (0, 0). What is the dizp+6,cr+gt x lwn8ov: rection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placedx uh7kjia llrd4 51f-,a2i yp1 at the vertices of an equilateral triangle which measures 30 cm on a side. What is t5 yu1fpil42ldj7 x-ka, iarh1he magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, k1+f -j;4 tagsusazk3 jl4nn/ which are separated by 3.0 m. At what point, on a line between the two charges, would ;sul3/-k+jzatj4 sfa 4n k1gnit be possible to place a charge of -Q such that the electrostatic 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 52.mt3ax xy 1v kn4aqw= 4.0 m. Where on the x-axis can a third charge be placexx4kq mw 3 va2y51tna.d so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q;y6oyyoz 1/q :y-uvzw is placed at x = 2a. Where can a third poszyuy z6o -v :q/oywy;1itive charge +q be placed so that the force on it is zero?

  A copper penny has a masssz62i/ q7h ;hb8qva7jlxm*w r 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 against the force of gravity by the attraction of a fq jcw.3j2o8jvyp, a +nixed proton some distance above it. How far above the electron is the proton?pwo3 2qj,+y 8vjj.nca

  Two 0.20-g metal spheres are hung from a c87 yphl9tr,6 +g senwpommon point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle +n9 pl8g6pt ,7wyres hbetween the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnitude of the electric fk(/c*/h m t; rtf5rpwq;a *ajpuqe60f ield at a distance of 1.0 m from the nu/;ft/ 0 pcmrfa(tprjquw* q*;eha k65cleus?

  What are the magnituda.lm --fnir6 t nomik;s70i f,e and direction of the electric field at a distance of 1.50 m from a 50.0t mk, famr ;i o-6-fns7i.nl0i-nC charge?

  A 5.0-C charge is 10 m from a small 5// dyb6 hy.k co ot,rukqbt20yc+rt2 test charge. What is the magnitude of the electric field at the location of the test chhotr /u+q dy .b,/ tco2bk0r5y2y6tkcarge?

  A 5.0-C charge is 10 m from a small test charge. What is the xe 8:8kzd1my2g fbk h9direction of the electrhbm8ed2xk8z :f19 ygkic field?

  A 5.0-C charge is 10 m from a small test charge. Wh1tmnk8: vtp:atc2l n.at is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tes1ntakm p.nt l8:cv:t2 t charge?

  Two point charges each have a value of 3.0 C and arqsr. ahi1+pxghys bd(1+ rm96te m2 9re separated by a distance of 4.0 m. What is the electr. q tie9g6xs rd29hh rms+a1(r1+mybp ic field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm margz*m /jf:vflr*s ,q w;k of a meter stick and a -4.0 mC charge iz/,r ws:gqv;l j*ffm* s placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC ce 2irgr;8htm 9wu0k v8harge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric fu km;2w9err h0v8 git8ield zero?

  Two point charges of +3.0 mC and -7.0 mC czlos 4l g+ a9ll0p19 1drs;p0r0ekhoare placed at x = 0 and x = 0.20 m. What is the magnitude4 p1d0o 9rpkhl0rlcseal+s;l0g1 9z o of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cornezr)xssfeg +l-s5)u c;rs of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Finds s+);)r lc 5x-zuefsg the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges arehof *3i3xb8 dopn50oqcki/ 0n 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 is the magnitude of the electric field at thenp38ofo5i bdch*o00ki x 3 nq/ square's center?

  A force of 10 N acts on a charge of 5.0 .o zr4(p6huj cz21du9r u1zrh mC when it is placed in a uniform electric field. What is the magnitude of hz 9uu.u1rj rz(416 rd hp2ozcthis electric field?

  A particle with a charge of 4.vzg2v94jc9ya 54w+vh:rev lk 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 electric field of 6000 N/C 9 p85 k)1 -qmlno g+.rfxdtbqkje6t)qpointing downward. What ctt) r6m5 kqogln8+ jdfp1 e)-b9kqq.xharge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a ch4qq *gz0zx*u q +run0sarge of -2.00 nC. The ball is placed inside a uns4 x qq z0gruu0n**q+ziform 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 cn og b)bm02xjy:ie93e(u,lm mC. What is the magnitude9)m oxbl: ej2un03 gbem(cy ,i of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a char ,dftt* 2ze7(g6ksgkrge of 3.0 mC. What is the electric field 6., s6zf gge*7d2tkk( tr0 cm from the center of the sphere?