State the law of conservation of electric crce:*2d0fuh f63s 9 ufht(ssgharge.

  Is it possible for two negative charges to attract each 7md0 m+pvpt)hmoo 3y(other?

  Is it possible for a positive and a negative charge to attract each other c/feuu/4 jrmf 1o8k.q?

  A glass rod is rubbed with a piece of silk. During the processn5xbn25u4amm-uh7 ucqo-vit2 5 lcz6 the glass rod acquires a positive charge ancz2 utq b ac4n2m-uno7 6ux ihm55-lv5d the silk

  A proton carries a

  The model of the atom shows x,inzcvb7fulm3 asrk ;w2d9( r8r 34fa

  A neutral atom always -nm 3koku8;s ghas

  An atom has more electrons than protons. The ajto.y4h 0n+j t d6:btqtom is

  Materials in which the electrons are bound ve4a ,i8ei8eqo gpo7ue; ry tightly to the nuclei are referred to a qp e;gu8, i7oiaoee48s

  Materials in which the electrons are bound very loosely to t,qmhh zy v-xn,djdt2d9(ay5 40de;xe he nuclei and can move about freely within the material are referred to av x(qe-nmt9d xdyje; z h2,,0hd 4da5ys

  A negatively charged rod is brought near one end of an uncharged metal bal42dz .8lyp(s w:k kqir. The end of the metal bar farthest from the charged rod will be c2ks y4lwldpq :8.zki( harged

  Sphere A carries a net positive charge, and sphere B is neutral. They are pt hul8tn9 1nj(;x1 rsblaced near each other on an insulated table. Sphere B is briefly touched with a wire tha1t9 br8xnj;1lun s(h tt is grounded. Which statement is correct?

  How can a negatively charged rod charge an l1v21v 7nyul9ig7vuioc9iw, z ra 5t +electroscope positively?

  An originally neutral electroscope is briefly touched with a positively charged n knps;a/n5v / ti:e 9x5ycwo1glass rod. The electrw;niyv/1s9c5 nt n:pe5ax/okoscope

  An originally neutral electrosgye8g)n d;r*hfz5i( l cope is grounded briefly while a positively charged glass rod is held near it. geir8f5;g y()hz *ldn After the glass rod is removed, the electroscope

  A positive object touches a neutral eleconaa w2xu gb0,3dvka ,8sivslm6;)p9troscope, and the leaves separate. Then a nnw8o s 9v3u)a6sap,,ibkm 0; agd2l xvegative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. m eqgkn182 n.cA neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral meta8kng 2 1nem.qcllic 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 negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coul e mzq; vyjq7;(+ rnf ko1ijeue4-b0s6omb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lar ln3/ib a*.1- /nznnba6qay zvger in magnitude th1z6vql/ b*-/. 3bnayn aazn inan the second charge.

  Sphere A carries a net chavf7qvesb lklai e569 0dm g,2+rge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best descrkl m29egf7v,deq s506ialb+v ibes the electrostatic force between them?

  Two charged objects attract each other with a certain forcfuu*+6j k v0eg:zq +e2q;klmge. If the charges on both objects are domlfjvq: k *u+2ke6g +; q0eguzubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractivesri3jygkwgq24 hd af2la2k w*-q+ 53v forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual vrda -45iylw3h2* 2 k sqa3jw2ggf+qkforces?

  Two charged objects attract each other with aa 3j3lz: 8zn:;l -s3x ppiiclu force F. What happens to the force between them if one charge is doubled, the other 3is j:u-:;lllai z n3xp8czp3 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 distaw5 wd6xm53 9p eabv5yynce of 1.0 m. What happens to the magnitude of t5w6y39e ma5b5xp ydv whe force on the proton if a second electron is placed next to the first electron?

  An electron and a proton ,9o-bway1 9bogprwb :are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a s:b a1b gr 9w9bow,opy-econd electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Wha ;-yhg olme.80ovbcoc 5sy/ k1t happens to the size of the force on the proton if the ele ycskye5 -v8l.; gooo/ch0mb1ctron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a seco kk.e tfb9xzbhf *;-t/nd 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 o-9 fxtkb/ *t;bfhz.k en the positive charge at the center of the square?

  A point charge of +Q is placed yh7hxl 0 ,h/ee myj-/*rmq up2at 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 i2 -0m mpelh/y ,yuxe /hqr*jh7t. 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 not a vecno;xabn(aeut kn 4.2; tor?

  At twice the distance from a point charge, the strength of the electric fie,z /nyj(in6vup9i;ovvq ms o,:cp,p :ld

  Is it possible to have a zero electric field value between a negam17p: 0dknhnq tive and positive charge along the line jnnhp mk7q10:doining the two charges?

  Is it possible to have a zero electric field value between two posidgwkn:9q3r lrpi0u5o/bcw 9 6tive charges along the line joining the two charikgon rwudc95 p6 r0w /b3q:l9ges?

  Electric field lines n8y 9/*77jd ejpdrtz gf6dp *gyear psitive point charges

  The electric field shkc 3 a 1w7buyy, 6onr9p*0eas.mdxq j6own

  Can electric field lines intersects r;t2 xk*i: zz .so)lc5e8hr+x iwqg/ in free space?

  A solid block of metal in ele7njvn lb*gi-a a6ws*5cn)( hnr)vn4i ctrostatic equilibrium is placed in a uniform electric fs*wnlj rn67-avngn(hv) in4i )*5 bacield. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters arw nj4ehfg:a i2yc8qe(4qc5e , e each give (g2a5 encqy:eqw8e 4,hi4fc jn the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminurayccypq2x o-i 6j 3 4op.9qb.m rests on a wooden table in a region where a uniform electric yojp ccoyp94q6..rbxqa i-2 3 field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric charge 5ma 3s:lbqjkfu/mq8g 0+aob -

  A positive point charge is ji opsh5 wp ww7xc+.3.enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere swcp.35o.7wpjwx+hi has

State three properties od9*z v5: fpbtgf conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electh 5.e*a ulq09n aeoe9bron 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 ma axfxj ;-j nf:jql+t35ny more protons than electrons doe5 j3lj-xq n:+ftja;fxs this piece of plastic have?

  What is the charge on 1 kg of vvll1l4 x (2(2r) dknhs ;zd 2ojqp4fbprotons?

  An atomic nucleus has a charge (81+mm rhsj amof $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, sep5k2n yb3jctauw3 rd)rgk t.34arated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric2y4tgju3 dk tbc 3r.5rkaw)3n force between them?

  A 1.0-C charge is 15 m from a second cham1grr95b ie(8k53tcg xspj3em)*be hrge, and the force between them is 1.0 N. What is the magnitude of3b9 mb) s5 c1(3hieej8x* p5getrrmgk the second charge?

  Two 1.0-C charges havztpv/ak) l ,q7e a force between them of 1.0 N. How far apart are they?

  The force between a 08*:gf nbczk odpi0u k; b8w+o$30 \; mC$ 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 thn(v98ljywl p/,w ; 0*kuzkwu jey are moved to a new separation of 8.0 cm, what is the electric wwl w kjlvn8 uj;k(pz,*uy/09force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The firsl8w6/ih pu+vtq19 gwi t 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 w 9u iwql18+tp6hv giw/hich acts on the charge at the origin?

  Three point charges are placedvje..fg/0w6 an jpy3t on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C/3..ea 6ypjg w tv0fnj 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 acts on the charge at the origin?

  Three point charges are lo* lojj t4kf0(3 fqzp:*npngi.cated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3f*p.p4l:i gqo3 zj jtnn0 *fk( = -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 bghlks*k 3+ b-b69tfkcenter 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 acts on the center charge if a third charge of -Q is placed at the lower-b gh3ks *tbk-f9 k+lb6left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0xp.3ihibq 220xdvu;g .10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net fodx02gbi u.v 2qx;pih3rce 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 = 5kys4vhy55lj 5yoa u.tv thzd1 ,97y j).0 nC is at (0, 0). What is the directij .91s5huovj5,td yy5ytyvakh)4lz7 on of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 m aop2.wtm) e5yC are placed at the vertices of an equilateral triangle which measures 30 cm on a side 5pomtyw2a)e. . 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 bd-i4uw1- .sa-.na :xzi r4dzdb j- xsby 3.0 m. At what point, on a line between the two charges, would it be possible dw ixsaan 41-x.-d -i4zbz-us:d.jbr to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at thdara7d3n ) (k- tmrg:rx*3dkhe origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a thi3: mad-g*d(r7k)3 kx ta drrnhrd 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 = 2a. Where cqt a o4fv m8-dzyg;sh6il2ujgv(l))6 an a third positive charge +q be placed so that the for 4lg6 t)6yu8foih(z2gv; lvs jam)-qdce on it is zero?

  A copper penny has a mass of 3.0 g. A tot)k 9kf*i lw2khal 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 eup f0s/;q+daof a fixed proton some distance above it. How far ab;apuq +s0fe d/ove the electron is the proton?

  Two 0.20-g metal spheres are hung from a commo pxi6v e-gpo m0;8ol*5pq 8aibn point by nonconducting threads which are 30 cm long. Both vplgm*- ei56 opxipo8a; 8b 0qare 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. What is theawothojv 0-b+,9 eez): dxfw * magnitude of the electric fielvbefa- dx*h)wze :0wotoj ,+9 d at a distance of 1.0 m from the nucleus?

  What are the magnitude and directidq3pxoct 2c,tnvc36nez,8* g on of the electric field at a distance of 1.50 og,v3p3*,xc eq2 tc6dnctnz8 m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. W f ktsl emf+)8bzzr.1fahe- a*5ln(k;hat is the magnitude of the elec*)l 5z.k1feea tk;+m (ffn abhls8-zrtric field 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 thejr9v*d c .i+24syxyuj elec 4idrvjjxs*uc2.y y 9+tric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magniturcl8r(vva *hkpp x22ml t60 2ode of the force lt 6v(coprhx 2p*v22ark8m0l 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 separatedypzo 5 k /2cw-nwxpl:zu5)d x, by a distance of 4.0 m. What is the electric field at a point mi/-c:pxu5kl,oxpz w )y 52dnz wdway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick ae7 dqz djz/ :ogaoo4ma-9l0x4 nd a -4.0 mC charge is placed at the 50 cm mark. What is the electriz qzo4ajmo0 :-xe/oad4lgd79 c field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a m/w pm-fix k175 /y8wez0bkgif:(xwmceter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zb xxkm5wkpw0 y i -mcwi/71 zffe8:g/(ero?

  Two point charges of +3.0 mC and -7.0g /vjikh) c(j; mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the e)ic h(;gk/jjvlectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a sq,jo q( h jbyux:018tmcuare of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find thj8,0xoqth:m c1u b(yj e electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at th:r w0 4h;aogx0tcma p gtm+8*liawe4 2e 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 the squmto48ax0l i ah:+g 2*ewrg0 wt4;ac pmare's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a unifo dw vdm:kz ,ra zaebmo *z7a17.qb7i*0rm electric field. What is thwm dm zz 7vdr eo7k01b a7q:b*a.*az,ie magnitude of this electric field?

  A particle with a charge of 4.0 m/1w rs12 ifcgep7a7y oC 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 plau -hsw9 u6a ntecrg5iwe *ah vm628bm4nx;2f5ced in an electric field of 6000 N/C pointing downwa ;nxgcm 82esahrnv 5t9-ia6bwehw42m f5u u*6rd. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charg :40gp:tiuo kke of -2.00 nC. The ball is placed inside a uniform electric field, and is suspendu:40op kt i:gked 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. ehqoqs:; ,d/ yWhat is the magnitude of the electric field 5.0 cm from the spheoqh,q s:y/;d ere's surface?

  A metal sphere of radius 2.0 cv zr33ba9vh /bm carries a charge of 3.0 mC. What is the electric fiev/a 3vbb9r3zh ld 6.0 cm from the center of the sphere?