State the law of conservation of electriyn d)-x kukrn,hp(6m -i1vw (sc charge.

  Is it possible for two negative charges to attract each othk5/w)1qqktitp v+ w* her?

  Is it possible for a positive and a negative charge to attract each otu g*n8 t9 jih.ff;q6daher?

  A glass rod is rubbed with a piece of silk. During the process +s c fdojbt8l(2oi42pthe glass rod acquires+2bolptd(os j8c2 i f4 a positive charge and the silk

  A proton carries a

  The model of the atom shows a0v 2 s5sk: tyx-x.zfxmxn-mq2

  A neutral atom always hasgea-4wfa9 ljf)0f w8 r

  An atom has more electrons than protons. The atom y6l;ee4a s;zwr c /a1uis

  Materials in which the electrons are boun(r)ili tj u)l-d very tightly to the nuclei are referred to )-j tu) ilirl(as

  Materials in which the electrons are bound very loosely to theu69cct:( ;a nsxa phi: nuclei and can move about freely within pati9 (:s;un:6xcac h the material are referred to as

  A negatively charged rod is brought near one end ofrdq3-/ d ipj8lg3 hdgr7kkh (+ an uncharged metal bar. The end of the metal bar farthest from the charged rod will be cha-rlkjqgrd( 8dg3 h+ki3dp/7hrged

  Sphere A carries a net positive charge, and sphere B is neutral. Tpnf;7z ov2pos;3y emhm0 j5o0hey are placed near each other 2 oz;5mpp e;hyso0ovjf m 7n03on 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 posiu8rjdz8; (c7lbhh j 3xtively?

  An originally neutral electroscope is briefl9pf83,sz 5ljq,d udz wy touched with a positively charged glass rod. 3lfzd8s dwq,9up, z5j The electroscope

  An originally neutral electroscope is grounded briefly while a positively chartyk6xf0-kc(j ged glass rod is heldxjty k 6f(k-0c near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the lev2 t6. diiczl (4tz4rraves separate. Then a negative object is lt6(v 4tc zi 4rz2idr.brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tablappz /v1t*mm9/ mhknx0 lwd *//h gk6ce. 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 not touch the negative object. At/9*m0/cn mz 1d x k /*w6lvh/pkpamhgt no time does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of 8 p1c:amnmr+mc-lovah s8v 8/ mt: zx3the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largerznnw9:k:jiw5hdna;qvw , z)ao:)c,n in magnitude than the second charge n ;voqj)d : hcan,nn, :kawww):z9zi5.

  Sphere A carries a net charge and sphere B is neutral. d mtgl :n+2l)kq7i+ tiThey are placed near each other on an insuladqkti m7n+ :+l)t 2gilted table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a d ;lpt* le3l *gcugq6-y r4addnm+o 2/certain force. If the charges on both objects are doubled with no chan/dqgdd*y 42t6l*or 3eg-; m anu+cpll ge in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractwd a5om)ztt,1*76ztoje2i evive forces of F on each other. If the charges are separated by a distance of d/3, t7tdit,mvaeo6ozw1z e) 25 *jwhat are the new mutual forces?

  Two charged objects attract each other with a force F. What happens ty kej 079+ teb2 qw3a,ujbv-xxh9 ;iaho the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its originxb,9;bvhh yiw +e72 3ajxejk 9u0aqt -al value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. Whatrs6 rx 9n)unt5+gw 2ls happens to the magnitude of the force on the proton if a second elecrsg6w2 5+unn9s rtl)x tron is placed next to the first electron?

  An electron and a proton are seph1./mqy(kb m alop et k:r -y;8ma4xo)arated by a distance of 1.0 m. What happens to the magnitude of the forcom/ky rxlk:1b( yhta em)4a8p;-. moqe on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separau9 y,j3x e pahl927qsqted by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.5 93lus9jx7ap2y hq, qe0 m closer to the proton?

  A point charge of +Q is placed at the cent)zedbztna0g;rln m8.;:6 du 8vgmm9zer 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. Now, identical charges of -Q are placed at the other three corners of the square. What is the magnitude of 69 8r ndaemmzvgdtm;8z:b;lnu )0.zgthe net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the cenmu fw w(z)7 y7pu)w2ww-hvzi 5troid 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 ww7w wvmh z72)f5 p(w-yiu) zuacts on it. 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 isbg;8ku9 4un 7kx ijwium-(mo 3 not a vector?

  At twice the distance from a point char a qn6x16b9dmjohg15 zf8k zn6ge, the strength of the electric field

  Is it possible to have a zero electric x3 h(z7 t-xy xa*gej1qfield value between a negative and positive charge along tz7eqg(ht1a yj-x *3 xxhe line joining the two charges?

  Is it possible to have a zero electric li7ty -grglxc /ku),j6v)(d( jnndt0field value between two positive charges along the line joining theg) r-d(lv7j/ i6nutxjdc0,gtl) y (nk two charges?

  Electric field lines near ps*)15 wz hz ikjqe.d up9 r-/a-wfx3g(ym1gmqg itive point charges

  The electric field show z4 l3 ues04do x0zk1k,l1yapon

  Can electric field lines intersect in free sm; m86umu m,1ap3scqrnpol, c +b-y8vpace?

  A solid block of metal in ek*tua8-x+luqjf-v t,g)8 ehj(1msc e lectrostatic equilibrium is placed in a uniform electric field. Give a staec lujf(t svh+j 1),qkx-mea- tg*u88tement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eac6pv z7emcq7w hc;- pcz3m+g7yh given the same charge, the electric field (E) midway between the center and the surface7hmcq3z67ycpw ve 7+mz- cgp; is

  A cubic block of aluminum resgbjq/ z -p/zv(mxx8)e)6gqot ts on a wooden table in a region where a uniform electric field is directed straight upward. What can bjv/ )68gx/qzp -o gmz )qxtbe(e said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibriums m7/t 2tr) ji93ikzkeuhk)s) near an electric charge

  A positive point charge is e frv2k/l0fk +gnclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field a+0 g fklvr2/fkt a point directly above the hollow sphere has

State three properties of conductors in static equilibx4q l8 mw b 3*i1q+a;szoxz/rwrium.

State Gauss's law.

  The charge carried by one elect m5)-sl 6ax/s0bhoebkron 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 many morebhzkll8ji92cs/ozg ;.)le b- protons than electrons does this piece of plastici8s lgb- ;/9kejozl.c)2lbhz have?

  What is the charge on 1 kg of px:hacq7 3wv- ek yyy2rk;76d1id : xd id:3rvwrotons?

  An atomic nucleus has a charge 6k nk8kyx2 c.kof $+40e$. 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 pls4ns +0-+rretgvv jh43z)n of 2.0 and -4.0 mC, respectively. What is tz)sjp+tv-gen lr 04 r h4v+sn3he magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a ytwcs gb*zl,.d4j j1xf)1w ) 2t3qlresecond charge, and the force between them is 1.0 N. What is 3,rjg *s2lq) bz) 4wwtj1.l1xdyfce tthe magnitude of the second charge?

  Two 1.0-C charges have a force between them ojoy8)*6q.yj8yz hn -fe9fj wqf 1.0 N. How far apart are they?

  The force between a 7sx+o4zr mx2jvjmt2j ihu+ ;) $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm a 9,:jl ml,vxaopart, experience a 1.0-N force. If they are moved to a new separation of 8.09a ovx,l, ljm: cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the k2 8d )f3m xy13m:fvhba6gsfg x-axis. 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 electrostatic ah 6 yg8fs2k3) dgffx: mvbm31force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is pluz8qf +*mrcx0+ 8u p.bfy3r3lgohtj)aced at the origin, -2.0 m C to the rx t.38l+orm*ju hqp3f0 rgu8 bfcy)z+ight 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 nm.3*oyggvpb/del-( located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.olp dn -e.g*mvgby(3/ 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 o,k n b,mf)ko3/yit-stf a square, and a second point charge of k,k)by,- mts/3otf ni-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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = w*y4bt*j t9m x (hduy*-1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on tbw9*u( md4y *httyxj*he 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC 3.zzrv kou :j-:hxw x/is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of tj3x / vw zkx:ozu:hr-.he net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equi4s gou*ki;6p8 aug r9vlateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the c iugv6 8kp;au9*s4groharges?

  Consider point chargen9 g w7+a8 zt4m feaxe3.zge8es of +Q and +4Q, which are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a cha fg8 .zeezame+ ex7nagw t8943rge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin andpgz6,ed8i,7 y.j1 u) rxfarrd a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zerog1xy z uf)76.r i jrdd8ar,e,p?

  Charge +2q is placed at the origin and charge -q is places0 imwi j;n(p.8g-vrr d at x = 2a. Where can a third positive charge +q be placed srri8v.mwp -0;jg sn i(o that the force on it is zero?

  A copper penny has a mass of 3.0 g. A t3zjs lm2ay -icz5tp4,(w 4dby kby1 b;otal 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 fix*)bf-tc fmid qmr6,5 jed proton some distajfbc tir5 ,d6)fq m-*mnce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads3(t9)oc goa l,yibv6y which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads i(63iat,yo vyb cgl)o9s $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. Whav. r9ux a-ow3pxqm)6lt is the magnitude of the electric field at ar-m xpo aquw)v6 39.xl distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dis: d . ,6peuh7)q awepzm6kj--xijjo/pav*oj)tance of 1.50 m from a 5mqvzdhjkeaj u-.pw i ,6*)ep: /o 6) -xa7pojj0.0-nC charge?

  A 5.0-C charge is 10 m from a small test chinm; wilohg/.7o/ ,f:siyw e6 q6zs +warge. What is the magnitude of the electric field sswf z,hwi ;m/ oy+ /ioil:.6gqe6nw7at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What isz+c z:(nugl*dv 1+ifgrmg,9s the direction of the elect1gz+d*g n:9fgl,zv(ic+u rsmric field?

  A 5.0-C charge is 10 m from a small test charge. Wha, qlz3)wf+.xc ibyo c.t is the magnitude of the force experienwi lyc+ ,)c.q o.3xzbfced 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 separat x gqlv*2e+ cj*mbm-)led by a distance of 4.0 m. What is the electric field at a point midway between theev*q+2gx b m l)*cljm- two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chargevpo kca3t5j,9*i5 ib ee25qm3bwa:iv is placed at the 50 cm mark. What is the electric:m5 2*aa,cijvb5obqp5i3ee kiv t w9 3 field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a metebrrj(9 rdlag tnp v r.7x*n()kq 6ta,,r 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 zerorrj9da 7)bg r*ktp6qvt x,n,lr.n( a (?

  Two point charges of +3.0 mC and -7.0 mC are placxp.,/ 2+5eecs 6cofcuxbnr2h ed at x = 0 and x = 0.20 m. What is the mag / ecb2h+rx2 xcnf. ,cs65eopunitude 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. The lsisi mq.lo 7 *2fa,)/qgbb /uhast corner is occupied by a -3.0 mC charge. Find the electric fiel s/ . abfgu2hi*sb,li7q/qm)od at the center of the square.

  Consider a square which is 1.0 m on a s.:n n mnu0 :kcvx7zav-nn5+iside. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1,:v:vkx7smnn i ucn-0azn+. 5 n 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 mC when it is placed in a uniform electw +hz3qd6rpzm :d6a t/ric field. What is the magnitude of this electric fiwdpm6/td3z ha q+:zr6eld?

  A particle with a charge ofk93ou vw6r v2d;1lynt 4.0 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 al1gc. vhx xg 3 )7pa*kau97jvrn electric field of 6000 N/C pointing downward. What charge must be placed on the baua .cxp7k7*v rgvjgl19)h a3xll for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed inra5v yue (0jah1q2mp 8i- 6mvsside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction o82uv5 a-s mv(6hypa1 jem0 qrif the electric field?

  A metal sphere of radius zhu /+0ulp(c2 jndpj9c lp:c2u-qco9 10 cm carries a charge of +2.0 mC. What is the magnitude of the elecc9lcd +-q 9:02po lzp/uj(u 2ccjpnhutric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What h u7.t )setm1u.l 7hkais the electric field 6.)km.tet7l. ua1hh 7su 0 cm from the center of the sphere?