State the law of conservation of electrunw1 w74z4m2bh ou va2ic charge.

  Is it possible for two negative charges to attract *:p r9hxbk) 9sp* /1sc ggoadceach other?

  Is it possible for a positive and a negative charge to attroe8tlr/;6meqemdp) wy*u4/ n act each other?

  A glass rod is rubbed with a piece of silk. During the procs45coa sg( yn w-3;itgess the glass rod acquireg(s ca- 54oy;n3gsitws a positive charge and the silk

  A proton carries a

  The model of the atom ;x(tf.uedlw +e+nu 7wshows a

  A neutral atom alwaysl)dp88sgjlp //oma z9 has

  An atom has more electrons than protons. The ow9)xdlb-zy4 atom is

  Materials in which the electrons are bound vez(g3g(5i+ 2s jyrzm/)l5th df yt +mjzry tightly to the nuclei are referrmy5d y /t+sir2zt5)(j zm h3 (jgfglz+ed to as

  Materials in which the electr/x lzrb;yy o+0ons are bound very loosely to the nuclei and can move about freely within the mate/ y+lxz o;0byrrial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal balocb - 7;d;8d4gryc1 levmw 8fr. The end of the metal bar f -c8m 8vg dredy1;lwolb; 7c4farthest from the charged rod will be charged

  Sphere A carries a net positive j8/lg*pq ndts3m5(33h-wwq d rp ;g xmcharge, and sphere B is neutral. They are placed near each other on an insulatm-rqw3slp gxwmt;n8 gp35d(* qjh d3 /ed table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively cha zjoj/2vil4 .*pmtg*spv86yx rged rod charge an electroscope positively?

  An originally neutral electroscope is brieflyv. d nkm:aarvl0q1d*-b* u(lc touched with a positively charged glass rod. Tlanlk*1d :d ar qu-.m(cvbv*0he electroscope

  An originally neutral electroscope is grounded briefly while a pohm21 1iot yqm 4mpz27dn9 /yztsitively charged glass rod is helhm 1t2id2onmq9tyz p7 1my/4z d near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves sepxzw:9:chkvsnyr sr coy*(4(8arate. Then a negative object is brought near the electroscope, but does not touch it. What happec9srv4zs:yc8:x wyn *k(rh o(ns to the leaves?

  A large negatively charged object is placed on an insulated table. A neut .iva zxxfm39 z85j9+kfk.v3tg cl .blral 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 v .vk 9fbixxla 5 .+zkt98m.jgcz3fl3 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 t2.fdvv n09zs ihe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger,pj0 ix kbl78eww.j .0jszh, f in magn k0,pw7j, f.e0xs jbhwz. jli8itude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. Theyta0 z+4ahfgts5 ,x8no are placed near each other on an insulated table. Which statement best describes the electrosta, fz angt58hs4at0xo+ tic force between them?

  Two charged objects attract each other with a certain force.yyc9k7/(zul sall uo j/3) e)n If the charges on both obju ny/(lk u9 eyo)c/ )j3zalls7ects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual atg 0 7 hoo.,zx-kxuwys)tractive forces of F on each other. If the charges are separated b.-ghoux,ky o xw7 )0szy a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What ,ne.mnsp jt,;happens to the force between them i,e,n nmp;stj. f one charge 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 eawh:m okye0 -aih3 (xo7c3jf.s*3i v by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed n:e i7 (xaskwy.3 oai-oevm h0*c33jfhext to the first electron?

  An electron and a proton are separated tze/fi 8r*dan..d h4v8 a-nbxby a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed nextx48afavd hd8rnb.zetn.-*i / to the proton?

  An electron and a proton are separated by aaz1hu7/)2vn t ,jo 81)v3aywwxac-u,k xjj oq distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer1 8y)ock-a7wauj h)v 1, qw,zxxt avj3ju2/on to the proton?

  A point charge of +Q is placed at the center of a square. Whenwe6bk/y lm,. r, o1tmn a second point charge of -Q is placed at one of the square's corwbotk m1 lny,e ,r.m6/ners, 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 square?

  A point charge of +Q is placed at the centse-baik ns;(.5n3w dv hgu;c3/howriwr* 7+ sroid 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 acts on the center cnc3 in.iw*dwkw7bg seh+var3uo/; rs- s 5 (;hharge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a v2i wv6ff8z yd6ector?

  At twice the distance from a point charge, y1c7g1jljiv 0 the strength of the electric field

  Is it possible to have a zero electric field value between ae)k36ttucyujk 83z9vp l 6i2k negative and positive charge along the line joining t8z2jlcetk 3ukpk t6 u6y)9i3vhe two charges?

  Is it possible to have a zero electric field value between two positto.24v/xzt 0izxb (fh ive charges alon/ x(v2 b hto.i4zzftx0g the line joining the two charges?

  Electric field lines near psitive point chargw uv-wwbl8q o. b6*mkwrm6 1r6es

  The electric field shok -b6yvh0d.0cc h6m xwwn

  Can electric field lines intersect in free syev h8 /q99bcipace?

  A solid block of metal in electrostatic equilibrium m rqnyko*8a r594c6e29p 6voh ydxf+ais placed in a uniform electric field. Give a statement concerning the electric field in the bloc8 6m2o vcx9+okae f r6rpyhqnyd549*a k's interior.

  If a solid metal sphere and a hollow metal sphere of equal diam 2yus ikxn8q ,nw+hn161 kih4xeters are each given the same charge, the electric field (E) midway between the center and the surface2i 8+i, q14knhn nusxyhxk61w is

  A cubic block of aluminum rests on a wz+ce5ovg 48kwooden table in a region where a uniform electric field is directed straight upward. What can be said concerning th cv8gko zew4+5e charge on the block's top surface?

  If a conductor is in electrostatic eqzvuf464keumiu dv5ld rh+09a,;zd 6 m uilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic spherw8v x(ns 97l(kq jmse/*jrai4e that is grounded. As compared to the case without the hollow sphere, the electric field at a point directl4qj8wlmx niskjs ( 7(r9v/ae*y above the hollow sphere has

State three properties of conductors in static 1iviug( ,/ qo)g9ux qkequilibrium.

State Gauss's law.

  The charge carried by one electron rnzu cw2b*lkv *-14sa )rs7l yis $e = -1.6 \times 10^{-19} \; C$. 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 protoc5s:9ri/a, o mlmqkm. ns than electroo.a9qmilmrms: 5k,/cns does this piece of plastic have?

  What is the charge on b0-rbh.9ludg :flia5 1 kg of protons?

  An atomic nucleus has a chargef41 )xp+g knix( mjgq7 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,:,/mdw h megs7dg b3q0z9ukp: have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude9/ qmdezb :g0:h 3kg7pw,dmus of the electric force between them?

  A 1.0-C charge is 15 m from a xzrt hp ftf(m/0 8)( aqdxsnd* jx;q3(*q4fjwsecond charge, and the force between them is 1.0 N. What is the magnitude of the sejxt 8;*a jr( qf3 pz0xdsxdfq *(qmh)f(tn4/wcond charge?

  Two 1.0-C charges have a fo9-rubr jfvg0 w )wld*kfvis3i +3n3 t4rce between them of 1.0 N. How far apart are they?

  The force between a kawy3va9s- -j$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, ;nx21 nqu;ei9h/z8 wp qkiv 8wexperience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between thi hi;uzp 2wwn1n xq; v8e9k/q8em?

  Three identical point charges of 2.0 mC are placed on the x-axa j8rknr5 /)kd7o/53wvspem st4u :vse si* )dis. The first 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 electrostatidvm5wt/j*sd 5rek 38su4 p/7s)krneaio s) :vc force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. 2(,;lb1nh wq fskcoz4qjn z+ / 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 actsc+ wbzns fo;hq nzl2,4/j1(qk on the charge at the origin?

  Three point charges are located at the following posit ygb2q*i+:twqpm jc8. ions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is.tqmwgjyb2p+ * 8ciq: 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,,7je 7 jlawyk a second point charge of -Q is placed at theya,wjjkl 7,e7 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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, p79n:-mvhwi p 0.10 m); Q3 = 5.0 nC is at (0, 0). np p: mviw7-9h What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); u7y7h 1s )ggs(iw1wnnQ2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, gsi)g7w( h1s 1 nuywn70). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at thacjhe* ajm+7x 1 n2c:oe vertices of an equilateral triang7haj+jexmc1o: * nac2le which measures 30 cm on a side. 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 sepa n,l.d czr(kk3rated by 3.0 m. At what point, on a line betwe,zln(ck.r3k d en the two charges, would it 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 = 4.0 m. Where wpl8rryvt.l g 3,zt/:hwp51gon the x-axis can a third charge be placed so the net force on iwrly 5wg 8 pg3tzhr.v/tpl,1:t is zero?

  Charge +2q is placed at the ori(+ zr0bef 8fxvgin and charge -q is placed at x = 2a. Where can a re8v zffx+b0( third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of)lzhd9sxip/8bt;3m0 6a r i vn 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 graz ocyha,u5i b06i;wnx2 ab( 5zvity by the attraction of a fixed proton some distance above it. How far above the electron i ;xzaabyownhu5z,i0 ( cb65i 2s the proton?

  Two 0.20-g metal spheres are hunguuu7 .,jcwi+ 1i7hfj v 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 angl juj7 uf7w.1+civ hui,e between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is t*-jpr+dl8m xi0f 2shmhe magnitude of the electric field at a distance of 1.0 m from thm2s*mij 80 + hrfdlx-pe nucleus?

  What are the magnitude and direction of the electric field at a distu)*jtru6 fi7y o0; oxiance of 1.50 m from a 50.0-n*rf uy 6)0io; outjix7C charge?

  A 5.0-C charge is 10 m from a small test charge. W3+ x.ztqlna1 0h/ 99z ojdacwahat is the magnitude of the electric fwx1a zazaoq./3l 99thdcj+0nield at the location of the test charge?

  A 5.0-C charge is 10 m from a smfgcx k13kao(g z(/ae.all test charge. What is the direction of the electric fielac (1xk k(f3zoeag./gd?

  A 5.0-C charge is 10 m from a small test charge. What is the magni. /on8/vyh 7cl ,ra jroi+t(zgtude of the force experi .tr(7 o+n8/avhco z jrl/iy,genced 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 se qzf/xx)2dj tkufwp9(427,wmj a:p dsparated by a distance of 4.0 m. What is the electric fieup ps:q4ft)x /z9d,w fd7jw2am2 jkx( ld at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter tb::4qc7 ayr);ognmsstick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 o:yg7qs4br :mt an );ccm mark?

  A 5.0-mC charge is placed at un8+hfwot8zqq) 2,d s the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges 8+hzodus w8qq,ft2 )nis the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 bt,/;t 2 ozbivlps3 pw008c gt aos5)im. What is the mbg8la 0 st0ow/;tvc)tzo 3p2p s,5ibi agnitude of the electric 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. 3ner(h4hbt.;u laowk+ned27 fp a,f3 The last corner is occupied by a -3.0 mC charge. Find the electric n3w3;2td 7.hfub,4+oeala f(rnh ekp field at the center of the square.

  Consider a square which is 1.0 m on a e q85) vcawwslz9 p9;t-a;0zxppwll9 bzk*. kside. Charges are placed at the corners of the square asz;k5kzszlpbp px9;ew80va q *ta- lw). 9c9wl 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 actsr iq/urnguf,tf4n5,klpq 4zakk n1 j9/ )30kh on a charge of 5.0 mC when it is placed in a uniform electric field. Whatju3n 9l uqa,1z4n/rkift)nk 0kr5kpqhf4 / ,g is the magnitude of this electric field?

  A particle with a charge of z cd*4pshf n+h;2 )ldx4.0 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 elecy.v1xe *h hzp-tric field of 6000 N/C pointing downwx1ev-yzh.* ph ard. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The u30,atke uoz2 ball is placed inside a uniform electric field, and is suspended against tka 0,tzu2euo3he force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carri*yxg . logv)tzn)k7 3ges a charge of +2.0 mC. What is the magnitude of*yv)x gokgznt3 .gl7) the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of ra*;fnhre m 5:3.0 mC. What is the electric field 6.0 cm from the mn5*r:hefar ; center of the sphere?