State the law of conservation of electric charge307r+9q tvm vvzok-/pquje5t .

  Is it possible for two negatived5; llow n/tv+ charges to attract each other?

  Is it possible for a jvh9cr 6 nf,(wpositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the proce( urg v-as2juay qqt 10fmf+ 4llo2v43g7d f2sss the glass rod acqu sf -(2qj14 drvamtuq lf4u+ 023gygovfl72saires a positive charge and the silk

  A proton carries a

  The model of the atomguy *h y-, in;6lytwo,/ (zuio shows a

  A neutral atom always lkiv)u(ehh2 )tu j*t 37 /hwb6er0rplhas

  An atom has more electrons than protons. The atox( qtd51zxu+- gmfst 0m is

  Materials in which the eled*i 4gr8dm x p4j ciwym:c;st/wf*+u(ctrons are bound very tightly to the nuclei are referre/( mywd:cmt uc4sj+f ;8*i*4gwri xdpd to as

  Materials in which the electrons are bound very loon.z7 +cc0gic;s1 eobzsely to the nuclei and can move about freely1cegz z n b;0ioc.c+7s within the material are referred to as

  A negatively charged rod is brought near one end ojh qhjoz/j x,b,z8u+rcfo53 5f an uncharged metal bar. The end of 5hbojcjfr zj3z x5/oh8+uq,,the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. T;ule4ifsox: 03 ,gvvihey are placed near each other on an insulated tif 4v3eivo0:sx gl;,uable. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged va kkm+m,ek;q;f o,5i rod charge an electroscope positively?

  An originally neutral electroscopp wwv:m +r g 9gu-3 l(sbz2gvq),g2bmie is briefly touched with a positively charged glass rod. Th(smuglqv: b29 - mw+zg3p )gw2,rvibge electroscope

  An originally neutral electroscope is grounded briefly while a positively m1 ro f)iav.qcx;r6* ncharged glass rod is held near it. Afterra *c;nf.viqro 1x6)m the glass rod is removed, the electroscope

  A positive object touches a ne+y:n: a1 +r+iumxjj yglr/ij2 utral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the 1yji:+jgu i2+:r+m nyrxj/a l leaves?

  A large negatively charsfxo8pmexof 7(0nx +5ss f7 x6ged object is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second ne(fss 0spm x xno +758xefox6f7utral 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 negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constbx;n.6(evj wz 5vk h.mant $k$, which appears in Coulomb's law?

  Two charged objects are ss5o qp;7j ips.q6tvd +eparated by a distance d. The first charge is larger in magnitude than the second cha56s ;osp vi+tdqj q.7prge.

  Sphere A carries a net charge and sphere B is neutral. The tx0 ,k6 yb/p4skf*oeby are placed near each other on an insulated table. Which statement beo6yb s4tx0 k/*k,bef pst describes the electrostatic force between them?

  Two charged objects attract each otp44ez: no3ab dher with a certain force. If the charges on both objects are doubled with no change in separation, the force beapo n3:z4ed4 btween them

  Two charges are separated by a distance d and exert mutual attractive forces oz fyq ulnz:d q3iu7(++f F on each other. If the charges are separated by a distance of d/3, what are the new mut+:zlq+y3qf z7uind( uual forces?

  Two charged objects att)z ga93k/f tx.q: iqsr:wtg+ gract each other with a force F. What happens to the force between them if one c3ti +:rk/agqzgf q x:g.9 )wstharge is doubled, the other 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 sop;bs;s6*lx wu0e4em. What happens to the magnitude of the f 0w;u xos4;spseb6 *leorce on the proton if a second electron is placed next to the first electron?

  An electron and a proton axy hbbj9hz7/ss i5) v)re separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second el)9hsj7/ vbzb )5hsyx iectron is placed next to the proton?

  An electron and a proton are separam p8s(a 3fzimk 3x5:y2q+xlkf ted by a distance of 1.0 m. What happens to the s5qms2y3:3fxp+k 8 fax(i zlmkize of the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a bvj2(i b/1kkszi. 9h c:yco.b 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. Now, ident bk2ky i9/ci1.szhb cjo b:v.(ical 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 the3 5oj9mnpil4 d yf+1sn 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 forcems y4 li 1+3odfn5np9j 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 vectswu ht;jc,6 9aor?

  At twice the distance from a pointnsq/6g;j,-l f+*k i1 fy-jzsijqd6 )tq l. pha charge, the strength of the electric field

  Is it possible to have a zero electric field val. urx +/ky7dlqn1 wc pp2q,mh)ue between a negative and positive charge ).1ck w dlnq/ruh7yp,xp+q2malong the line joining the two charges?

  Is it possible to have a f)d tgf- 8sf e/:yh9b6jm:iz8row)qv zero electric field value between two positive charges along the line joining the two me 8)/frs y)z j6 ifdf:wo8-gvh9t :qbcharges?

  Electric field lines near ps s ;4o2 hhtxz.z6yx-ox4h8qu vitive point charges

  The electric field shown cb1g ra xh1m6zjg: +0)/gd,s.amdk ep

  Can electric field lines intersect in ot )77o .k9k1sfyqqe nfree space?

  A solid block of metal in electrostatic equilir/yh; 9k0.r hnh5pfow +e yqc-brium is placed in a uniform electric fiehr9.c-h fne op /hqw5r yy;0+kld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and hti78wav1t cd-13g6kj wd +se a hollow metal sphere of equal diameters are each given the same charge, thawj gvh786d w1d 3tti c1ks+-ee electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in zgz-.9znzg 4 oa region where a uniform electric field is directed straight upward. Wh.g og9z4z-znz at can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chargfsz tca 76. g0,l,xxt.a.jwhw:q0dot e

  A positive point charge is encl d7;cso jch,c qpg.k-,osed in a hollow metallic sphere that is grounded. As compared to the case without the hol-ksqd ,,cpcoh;c j.g7low sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrrtv6ly j- d4l+ium.

State Gauss's law.

  The charge carried by one electro6sk+tn.5l4q z a;byg-pe/qbfq: q:/.v nupehn 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 nhhz 4(ag8lgm :et charge of +2.00 mC. How many more protons than electrons does thlgga 8(:4z hmhis piece of plastic have?

  What is the charge on 1 kg of protons? e 8ckhuch;jj2-h.w)/vuf,z v

  An atomic nucleus has a charg* uyr2kx)gy, fe of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated bydikc d7a8 .y)f4cxt s8 1.5 cm, have charge values of 2.0 and -4.0 mC, respectiv .8y f7sx8ktcd)4cidaely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second cha.;ko9akf7lqnrjg;1 brge, and the force between them is 1.0 N. What is the magnitude of the second chargk17 9;jf k.o g;arnbqle?

  Two 1.0-C charges have a force betweeh,(ebvwv5iq* -cipw+mse 9g+n them of 1.0 N. How far apart are they?

  The force between a yjx xi :1ww8 nngij , p4b6*/pg+gaej($30 \; mC$ 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 fj5++szaf .mc t2ma-g1.0-N force. If they are moved to a new separation of 8.0 cm, what is thezsffmg2+maj 5c. -a+t electric force between them?

  Three identical point charges of 2.0 mC-ac.o ) s*yv/gh lvr)w are placed on the x-axis. The first charr wa-)lsg.*v/ cv)oh yge 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 which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of, t sfoo nl,ch,93s:fk +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 ol koo3c n9,tfs,hsf:,f the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q9ry eg1r9te z+dt* 2qbjq4fja-+k0fr 1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0g904dzq ej2eq tra t+*r1+r-ff jk b9y; 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 a second poo(.ppemsqgh :sq3 oc;5. cp(fint 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 foqfp:pe hcc;s5 .sg m(oo( q.p3rce 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, 0.10 m); Q3 = 5.0 nC iep4nra 5y 2ul.(v awkt9n au29s at (0, 0). What is the ma.anvlu4an9 ut (aw2e9r25k py gnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.3sa e :qt gm4p21hxyv4*0 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net forhxm2pt1* s44vaqge y :ce on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vert3xc - pn.dcutzdwcr1 1f**zr2ices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of thezzr*ud-n .1 1*pwc rc2t3fdxc charges?

  Consider point chargt9io+9uz +teces of +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be postzecti+o 99u+sible 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 bz )l4uuhd* c(1o(to3:sd;vcra 9j dx is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net;4dv ax:trsh3l(d 1ud 9*c uoc)jb zo( force on it is zero?

  Charge +2q is placed at the opsj0 rn ln.-g8rigin and charge -q is placed at x = 2a. Where can a thirdg0n njl-.srp8 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 ofkh-.m gmf/* zf $4.0 \times 10^{12} \; electrons$ 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 attractionv xrlc)+j7;p n of a fixed proton some distance above it. How far above the electron;plrcxv)7 +j n is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads en-l,lidexz wg 1mq8g 3.4c-rwhich are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threadsgz g1d eqel8,w3.x mlir-n- c4 is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the ma: tk/ 8wyiyxmq :wn:8ugnitude of the electric fieu8x:ky:mwq y8niw : /tld at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dista/ 8 qr bia* dgz3wbacjf*nxznn79k 9;7nce of 1.50 m from a 5an7j/kb9xwb7n g zc9 a zirqdn3*8*;f0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of on;a*s n wdu*;the electric field at the location of the test char*a; ud*s ;ownnge?

  A 5.0-C charge is 10 m from a small test chah. )xwn4 t/qj*vakn t)rge. What is the direction of the electrt/atvx4 nwh)j)k *nq. ic field?

  A 5.0-C charge is 10 m from a small test charge. What is s m)( 9ysrh dwxb2(h/gthe magnitude of the force experienced by a 1.0 nCxmr( b ss2hyd)/(9g hw charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separatef ;o//vb5qa4d1ld qhqd by a distance of 4.0 m. What is the electric field at a point midway between the two cha/h1/;v5oad q qlq4d fbrges?

  A 5.0-mC charge is placed ai qe:6vj72d k pp 1bhqb)a4tz)iom g;0t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What ig ;m1vb6:ho q jp te)qi 027i4k)dapzbs the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a met9 0b zmla) e8y/ruyrpyv)v38k er stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joipy rakub8v83ymyl ) 9)zvr 0e/ning the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed n how( h).ty;rat x = 0 and x = 0.20 m. What is the magnitude of the electric field at t ho)h.w ynr(;the point midway between them?

  Three 3.0 mC charges are at the three corners of a square t;5;i;jpx t ngof side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the ele;;5gjttpinx ; ctric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges a og x.v1bzuk;je y;3h-vz:adr5gy-:ure placed at the corners of thgzdy :vzy j.-gveu:35-ruxh bo;1;ake 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 square's center?

  A force of 10 N acts on a charge of 5.0 mCj, x, f h+rlho5)hs i85w d7uy4lcz;qv when it is placed in a uniform electric field. What is the magnitudl7 hsj+5qr vl 4 cw)y, ohx,h8;izu5fde of this electric field?

  A particle with a charge of 4.0 mC has a mass od oatov5r-6e :: p-o:s/vcv waf $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is ploku 5ejxp e/ xz2 :cph1;abi,* :v9vlraced in an electric field of 6000 N/C pointing downwxlhvev:u/5;b1okx,pc ejz* p:2 ari 9ard. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge oaqn: ,igreih-8 (:r*dmmpd)y)m s ku -f -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force oduk8)hnm-m,)i p rqrd: i a( *g-yesm:f gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carrbxq, ed7*n.el ht01hy 3(i uvkies a charge of +2.0 mC. What is the magnitude of t0vykb13heq.lht x d*,7ie (n uhe electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cbrj + uaegduy-it6.)c: ;oi9gm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the g)u.6b gia;jc ir o yu9t:-ed+sphere?