State the law of conservation of electrijp3mwbt *-ir4c charge.

  Is it possible for two negative charges to attract esrh )0 gtxz ozurmk3iq**4fz +c5x6t5+u +dc iach other?

  Is it possible for a positiv9)o uz o 55i.d.1f ucsiwl.uqle and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the d 4f(pilx,7zc3a ne:uglass rod acquires a posfcd,(lz4 :pa eunx7 i3itive charge and the silk

  A proton carries a

  The model of the atom showsoi5 )mxc82z xi a

  A neutral atom always ha1( :eox+m b cmt-rmk,zs

  An atom has more electrons than protons. The atom is-s liu8ip) 6ly

  Materials in which the electrons are boundw1 ia vjo;(+gq very tightly to the nuclei are referred to a1(i avgj+q;wos

  Materials in which the electro(mvx l g.83j c45 omcgai1rrw5ns are bound very loosely to the nuclei and can move about freely within lrc3 o1x5ma(84igrg mc5wj. v the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal ba+p-yy fe9 dx/pmbz 02fr. The end pbezf/29d0 m f+xy -pyof the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral.5p dz ))uaoy6b They are placed near each other on an insulated ta6 o)a)dpy5b zuble. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posccs ,sw:x-+frd n0tbr6d:) daitively?

  An originally neutral47h;suhdu ) ja*7d qcj electroscope is briefly touched with a positively charged glass rod. The electrosco77jusa*q c4u; hj) ddhpe

  An originally neutral xk+vgua7 o.yw5 u yr1qq,)dq6qy t p4wy;c-h5electroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is 7 g;t+5cqxw15q- opyah6k du yv)4uqr,y q.ywremoved, the electroscope

  A positive object touches a neutral electr4g )yxfy74 9oc ui);qbmsd bbwd x;2)hoscope, and the leaves separate. Then a negative object is broughgb4 mqbyyxcb)xdh; )i )w2;u s4fd 79ot near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutr mz4y;js0wecs ):+z ulal 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, strike z:)w0 esy+;j4mzscu ls 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 constant -dtv*/ ss la;k$k$, which appears in Coulomb's law?

  Two charged objects are separated by 3l4tauvow4alzb3p t ,1 zs n;,a distance d. The first charge is larger in magnitude than the a3tn ou;z tzb4,l,pla s14wv3second charge.

  Sphere A carries a net charge and sphere98) (t6n.l* 0y uap zruuzkckx B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic force betu) 68tku*z a9r c0zypnlku x(.ween them?

  Two charged objects attract each other with a certain force. If the charges oz , owj.n-j8lx d0+wvexe)6n/wb 0ues n both objects are doubled with no change in nnwe0 +ue)o,w -j6wj x.s8vx z/0ebld separation, the force between them

  Two charges are separated by a distance d and exert kl 4hrztri2 ;lg 2cw3.mutual attractive forces of F on each other. If the chrr;zi.kh c42 t3ll w2garges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. Whatanoeqpe5 3 8 nucx-pb05obz5zuq 7p-9 happens to the force between them if one charge is doubled, the other charge i-uz97e8 c0uq5 -z5pn epb oqoa3p5xnbs 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 s6;fzconl:m e -eog2ph rb g(73eparated by a distance of 1.0 m. What happens to the magni6ogec of r7(m :bzh2l-gp3ne;tude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton aurq9),4v;k wr; nylzy5bq+ w sre separated by a distance of 1.0 m. What happens to the magnitude of t byv+rlk4nrqwy5z ) uqs9; ,w;he force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are , asi/v 6o-zlwseparated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m clos-zv/ws ail,o 6er to the proton?

  A point charge of +Q is placed at the cevjalspncd3e3*gin hnu0w39 8gtt2y:3d 0w 1knter of a square. When a second point charge of -Q is placed at one of t:ec* lg3v3j y nittp 3ad 0un3kw80h dn92g1wshe 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 on the positive charge at the center of the square?

  A point charge of +Q is plac;b j+/ w p5j2jtch4q9ozh.t hged at 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 a.g/t9b z4jphwo2 jh qc5;t +hjcts 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 is n)ozhbc*scbvhy68 g (:ot a vector?

  At twice the distance from a point charge, the strength of the electric milcavsy,l zfw-gnv6xg87*.q 3 e 9q w)ilh31field

  Is it possible to have a zero electric field value between a negative e,y 7sdmqgl5 /h4py5d iwj-;*lguq y) and positive charge along the liley h ;)pud4d -igyq / j*y,557wglqmsne joining the two charges?

  Is it possible to have a zero electric field value betweilqy 9k i5r :s.5u(arwen two positive charges along the line joining thearkl5i5(wr.qys 9iu : two charges?

  Electric field lines ne y 4e ,t3fbxkihfnai8,4l zj6.6gx g4zar psitive point charges

  The electric field shown jisy+:hk1x4yj 0z x,t

  Can electric field lines intersect in fx1hkia.p5qu, dlu-)xree space?

  A solid block of metal in electrostatic equi2nfx (m,ceaa)(0e:pc b ,efyllibrium is placed in a uniform electric field.2c(b(anc ,:) p0effl eeayxm, Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow .wnuy 6k. fe*ametal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the ef*k.y 6 u.wnasurface is

  A cubic block of aluminum rests on a wooden tablbkopjq4k.n rd10e j6x 7o3e;w e in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's topo1o6 3 eb;rjjwn0 4qxe7kdp.k surface?

  If a conductor is in electrostj9cljg; a 2 4(utu.yvkatic equilibrium near an electric charge

  A positive point charo ie,e/35hhz0a-km :/ k4ec wmw1r x:eglm 5vsge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field awhwe or 0 m1se 3il /k5ghmvaeekc:-,zm5:/x4t a point directly above the hollow sphere has

State three properties of conductors in static eq9hhp;:am;qx i uilibrium.

State Gauss's law.

  The charge carried by one electron iol iv-hhr1q 0;) mlrplht 5d36yh :)lns $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a ne8u 8(qexys wp)t charge of +2.00 mC. How many more protons than electrons does this piece of plastic hq)pu8(exyws 8ave?

  What is the charge on 1 kg ogj 89p .-bpknc ij(6xzf protons?

  An atomic nucleus has py59*6 eqmwvg a charge 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,836ck,a w:bfkn c .n h1i2 tkmb.)czvz have charge values of 2.0 and -4.0 mC, respectitm )ck2.1kvin b :bz 6.,c afh3nzcw8kvely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a se k*v2q8ye+eyfi x-wve cp1z/e) p54 ivcond charge, and the force between them is 1.0 N. What is the magn v2+fee41x5yiz v)8e-wk iqpcv*e yp/ itude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. )u /i-zvgmo l)How far apart are they?

  The force between a q ew.:w c*i;c1s2 8sbkaljpq, ny8ml. $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience ak)vro z2f/fv2 1.0-N force. If they are moved to a new separation of 8.0 cm, wharfz/k2)2fo v vt is the electric force between them?

  Three identical point charges of 2.0 mC ar*wyvh v0;-n f8g*nzf8(uksec e placed on the x-axis. The first charge is at the origin, the second to thf ;kn cu8z8 vhgw-nyes f*(0v*e 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 o( c lq/cc-h vjjj5px(4f +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 mvxlcj4 j5hc-( pq(/ cjark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 qb./f9k if p n2jv5(ipmC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at p qj/ivp nif.kbf25(9x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at tmtb25pp 4mok/ he center 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 onm2 5mkp4btpo/ 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, 0.10 m); Q3 = 5.0 la6il1arcnr :n9p1 yusn5h * 5nC is at (0, 0). What is the ma i91nh5 :ny5p6l c1aars*lur ngnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC t 8mrxc69u;oupc1f .cwz8z39(g otw pis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charz opcc wc.9g6; 38(womx9t8trfz u1upge?

  Three identical charges of 3.0 mC are plac;k0uvy -x e9u,ydlmdl i:z*h3ed at the vertices of an equilateral triangle which measuresdkvu y 3,h0:-zed ;xyuim*l9 l 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 separated rq-ld;j *hdj,17uqd y2yb;x oby 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostaxlb2q j,jdd q;y-hyo*7 1 ru;dtic 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.k y2u 8c.u(wzi Where on the x-axis can a third charge y8(ukw .ucz2i be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x j/b./ l0win/njo;gl p = 2a. Where can a third positive charge +q be placed so thatl / /g.pj;ni/bjow0 nl the force on it is zero?

  A copper penny has a mass of 3.0 g. e7icj0( spcg-ttm6q 3A 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 atp n. j.0t.sedbtraction of a fixed proton some distance above it. H.ej.d.0npb ts ow far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting z4imk d*xa r0y4qw30yr:)avc threads which are 30 cm long. Both are given identical c yrd3 0z44aq)wcia*yrv: mxk0harges, 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 thehbm6m is )d(z3 magnitude of the electric field at a distancehs)mdz6bm3 ( i of 1.0 m from the nucleus?

  What are the magnitude and direction of thewark:qf)* y9c u .f2dg electric field at a distance of 1.50 y.k:2df)qf9 ua rg*wc m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is thxofng;0vz k)5 y7v6, 4m 3jwk5muaxlse magnitude of the electric field at the location of the test chz0x4kvl 6 o7mxag5nswy uv)5;3f k jm,arge?

  A 5.0-C charge is 10 m from a small test charge. What is thezi.dk 5b; d9o+ks434aeu drh y direction of the electri.y;49rbudo hs+ k5de 4a id3kzc field?

  A 5.0-C charge is 10 m ) 8efvl++ :md2ftixqofrom a small test charge. What is the magnitude of the force experienced by a 1.0 eo+fd l) if:q+2mv 8txnC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance owvv hhsc srk1i-3d7q7/7 gyo6s 8o4vof 4.0 m. What is the electric7 o1 46 qy7sov-chhogw 873ki/sdsvr v field at a point midway between the two charges?

  A 5.0-mC charge is plahnaph;(vm odjcf*+ s;0o +b .gced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at th .;cjdogp*b0f +h(h ovna;ms+e 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0yggy0iu6a mrfrbw o8*w6041f mC charge is placed at the 50 cm mark. At what point on a lingy4r0gof wy8* 166bw0ufma ire joining the two charges is the electric field zero?

  Two point charges of +3.0 mb9x c fkyl8jlw7*,hptc:) pa0C and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fielda kb),lpc:w7 ptx* ylhf8jc 90 at the point midway between them?

  Three 3.0 mC charges are mp9*zn+dj5v1;sz efvat the three corners of a square of side 0.50 m. The last corner is o1 vzsje9*m+d;n5fp vz ccupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0kng3 zo1x1hk(tpyi64 vzh +d q/ sv0eo r)6-hz m on a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC atvo3oqy 4pd0x)tzh6 /ir v1(+61sekzh- ngkh z (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 uniforf4c/5j u e 6 :rlpht0q5umcir.m electric fi.l0fe/i4 u:6 rcu mj5cqhtr5peld. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has abst a+ -h9shk6 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 6 dr c,1(-dz f f+/lrzt+3kzgfp000 N/C pointing downward. What charg + zgdzz/tcfd,f +p 1k(3fl-rre must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge .h1+a,dhvckv u8k( jd of -2.00 nC. The ball is placed inside a uniform electrickv acduv h1(+j8hd. k, 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 mC.rklaa n(h3q+, What is the magnitude of th,3hn r+a(qlka e electric 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 is the elmz ,ulgeu.55 zectric field 6.0u uz5g.lme, 5z cm from the center of the sphere?