State the law of conservation of eldxydrbh3i9)62 ppb tj n0v((uectric charge.

  Is it possible for two negaybtdwmz .y4yn/6d6s .tive charges to attract each other?

  Is it possible for a pg2 o0 f0hh x4mjqh c5*6q)pgo0qcky)vositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the c blgx5; by.t,mg5m6 wglass rod acquires a positive chatmbl x5 m,c.wbgy6g5 ;rge and the silk

  A proton carries a

  The model of the atom 3asuy(k 6qr.r3;rol nshows a

  A neutral atom always ha)cv1bh 5lln ;fs

  An atom has more electrons than protons. T5s,1+c hfk;ya2jbahl mwkq/ 4he atom is

  Materials in which the elec(ijek, +0v+b( sfinvctrons are bound very tightly to the nuclei are referri ,i(nb vk+0e+( fsvjced to as

  Materials in which the electrons are bound very whkerl 3tqr+)q4w(5 oe:gqm- loosely to the nuclei and can move about freely within the material are referredqt w:3o( eqglqh-rewr5 )+km4 to as

  A negatively charged rod is brought near one end z8zz( (d 7e6oranj3mw of an uncharged metal bar. The end of the metal bar farthest from the chargejw3a(z(6 8zo m7dzrne d rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. a;q(kh y tb)e, +chxp1They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is coet1, x;pq+kyh (ch a)brrect?

  How can a negatively charged rod char0c9upa g(sy** /qd ppkge an electroscope positively?

  An originally neutral electr4rf0y( kilqlq*w e:4noscope is briefly touched with a positively charged glass rod. e(0:ql*ry lqi 4 wnf4k The electroscope

  An originally neutral el,i8rr s02 et/gl;6hvj2hkse gectroscope is grounded briefly while a positively charged glass rod is held near it. After the glass rod is r,0 e6esk;lh v i2grrt 8h/g2jsemoved, the electroscope

  A positive object touches a:77 1 nbz;)iugkac5i esdf8 ic neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. zgucs1ik)f7 ai :5nc8i e7bd;What happens to the leaves?

  A large negatively charged object is placed on anr5 7pme3zq)nh5 a p1f nh9w,za insulated table. 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 ah epfnp5m9 w3z51n) ,rqh7zathe 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 constai5zlb1/)cos x734zm8zvxxoq.v b xq,nt $k$, which appears in Coulomb's law?

  Two charged objects are separa95 twrefa2 t+th ivc(1ted by a distance d. The first charge is larger in magnithtrvt5c wi a( 2f1+te9ude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed2*klnrmb-+.m6z6l( hk x tnag near each other on an insulated t6+l *grkh t n6zbl.-xnam (2mkable. Which statement best describes the electrostatic force between them?

  Two charged objects attract each+/;g6-bye xbvpxga4 m other with a certain force. If the charges on both objects are doubled with no change in separation, the forxbg +v/; a xy6bpe-4mgce between them

  Two charges are separated by a distance d and exert mutual attraulz.nxt1q ack6 8i/2hctive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual1 uxchl68tiqaz.n /k2 forces?

  Two charged objects attract each other wip y-oon- q,e3wth a force F. What happens to 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-fourt ,oyw-qop-n3 eh its original value? The force is now equal to

  An electron and a proton are separated by a dio,+f:td nb0w )ggxt)fstance of 1.0 m. What happens to th :gx0btd,fg)fw+o nt)e magnitude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What hcqh 60m qiv t j70hs(dmk.+ml)appens to the magnitude of the force on the first electron if a second electron is placed nexti0 0 d.skq(q6+hhm)jtm7cm v l to the proton?

  An electron and a pr t,/t *o1e s ukj)3d (,p*mgisibiqvsgv)2 q.doton are separated 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 closer to the proton)s.*pd3muv,it( sq*gi/k v2 g,qodt sejb i1) ?

  A point charge of +Q is placed at the center of a sqj v5-qkba2k6c3ubky9uare. When a second point charge of -Q is placeduq kyv b5a9j3k-b6k c2 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 on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral trm0( ;0mtb dhbjgtnm s;e2u4c- iangle. When a second charbt;tmj ;(u2mnd 0-hbm e 40scgge 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 charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following islb*o**+ mvqy l not a vector?

  At twice the distance from a point charge, the strength of the electric:n/ 6j ghtu0p)te7 crw field

  Is it possible to have a zero electric field valu/btsj0/f 3cl57 dqkbij4jp o*e between a negative and positive charge along the line joining the tw45i7j qco *tjl/b/djbsk30fp o charges?

  Is it possible to have a zero electric ;(+t ryotx(0sp bpd l.field value between two positive charges along the line joining the two charges?pbp +0dsoxtty .lr;( (

  Electric field lines near psitheu 1c2r. ihdd8j9z6ujie+b 8ive point charges

  The electric field shown w0oljy7)gy9kr5aw 9 f

  Can electric field lines intersect in free sp-eu11nupfzjndb r ;s0 q3xwx(r bf9+1ace?

  A solid block of metal in electrostatic equilibrium is placed in a u3cp*cl mt;c0;b :fvcwgro h7*niform electric field. Give a statement* cot0;c: bhcwl3p7m*cv;frg concerning the electric field in the block's interior.

  If a solid metal sphere andyb8ax1p9h+ in,u 4zjq3t bbk30 lvsy( a hollow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and the sur(9axb,l3tsq n jbzh01 yp4bv+3uky8i face is

  A cubic block of aluminum rests on a wooden table in a region where a unif4ay n-(z fi.mvorm electric field is directed straight upward. What4v-(nm aifz .y can be said concerning the charge on the block's top surface?

  If a conductor is in elel;msc0l fnplon;am;1: wk2 9a3 - qklqctrostatic equilibrium near an electric charge

  A positive point charge is encye 0in7q;u9v;kk f8lhq84eth losed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a 48hukiy 7lqq0n;vet k 9h;ef8point directly above the hollow sphere has

State three properties of conductors in static equilibsp:6;t oeeazuxx d(bypce4u 70/8f8h rium.

State Gauss's law.

  The charge carried byl3n 5ig pfh6(t0dc3 pd one electron 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 mo7d ,mvqi tslc 7ug(+k:re protons than electrons does this piece of plastic ctd7v +slk(i:q,g7 um have?

  What is the charge on 1 m wv(ph/gv. 58ullyxb(7o)ix kg of protons?

  An atomic nucleus has a charg o;2f-8wr/lyz e /gctbe 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, have charge values of 2.0 and14ar: mlxmme1 -4.0 mC, respectively. What ism a1mexmr: 14l the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a sev;i4/3tzt h7su pci (ocond charge, and the force between them is 1.0 N.3(tc p/u 47otihsviz; What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart ul* x39 a8rlnvare they?

  The force between a 8d k2yq6uwe fwen35 n,$30 \; mC$ 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 th9kh5 7jo)jijsj yo juf/3i l41ey are moved to a ne5i7s l jj4 ofu1kjyih3j o)/j9w separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the id9s3(e /s o/a on-idbx-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 force which acts on the charge at the origins/ ao- i i9(e/bddno3s?

  Three point charges are placed on the x-axis. A charge of +.s (bnok13 bty2.0 mC is placed at the origin, -2.0 ms.b3(o1nk tyb 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 acts on the charge at the origin?

  Three point charges are located at the following p; 12 x d//rpmwe)xr(, 2dioxgm:gwbboositions: 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 the magnitude of b r:w ; dxb )1 medgpwo2g/o2,(mx/rxithe force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, h ,r;pkj p,u2l sc51xfand 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 hs ru ,pfpxlc;k52j,1force 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, 6h,uemktv; q is at (0, 0). What is the magnitudek,e,m ;uvhqt6 of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0ro)pa*b9wfmm- (er7;fc. h pp , 0.10 m); Q3 = 5.0 nC is at (0, 0). Whafp;r9bwo* h . -(f7r)mppcea mt is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed awqqcf *7tcv)4u y4k( st the vertices of an equilateral triangle which measures 30 cm on a side. Whattcqyf4cuvks (47qw* ) 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 by 3.a0o;s6i1i0q 2isulcupjg0. q0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it wou;a qi20.o ugip0s1 qlusc6j i0ld be zero?

  A +3.0-C charge is at the origin and a +9.c2hih8m3m d6*lmn dq) 0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net for2qln)dm6 *d 3cmmih 8hce on it is zero?

  Charge +2q is placed a ewlrc x:ae;xxyt, 6+.t the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on i+,t xexrw 6.:yxe ;lcat is zero?

  A copper penny has a mass of 3.0 g. A total hm.9 *y5 hpncuiumb*6of $4.0 \times 10^{12} \; electrons$ 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 attz/,mpx 9x9 m8*ve p/bc 8xlrrhraction of a fixed proton some distanccmpx 9b l/z8rm * 9xxe/vrp,8he above it. How far above the electron is the proton?

  Two 0.20-g metal spheres arp uas-y t9.nz6o4vrc v; lv/j*e hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and 9-cv .p*tvsrz6/nj ouy alv4 ;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 the magnitude ob+33/gwtmmrm9y5ht,qn g c6nf the electric field at a distance of g n+,3ynrmbm5chw6qt3/ m9 tg 1.0 m from the nucleus?

  What are the magnitude and direction of the electr lt e1b7mwx+ffqw0 h9(ic field at a distance of 1.50 m from a 50.0-nC charg+(b9xw m q01 wfltfh7ee?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the enauu0 ks yi1jiu9 (.wkc.vq38lectric field at the loc.w30k i9c ikyvquj1su (.ua8n ation of the test charge?

  A 5.0-C charge is 10 m from a bacw:x6 t7)efb-2axl8 z .m cbsmall test charge. What is the direction of the elec xfac)8mtxbbbz: .6a-ce2l w7 tric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnnti7sesh ts j:,b7h3w);y2rb itude of the force experiene) w ;b: syjnhs,htr 37bst2i7ced 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 sep plun2: h 9ykurwz 5s*5kwk6p6arated by a distance of 4.0 m. What is the electric field at a point mi6wyk95 pns6w:rulk 52zu* pk hdway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a me(.wi baj;q.fxter stick and a -4.0 mC charge is placed at the 50 cm mark.;j(. ax. qiwfb What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of 8-8yc72 j osi c3ddqga qhj:g,a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line da q g,38 -gsc jqj:c82diohy7joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x )d pa o*ztd/:p= 0.20 m. What is the magnitude of the electric field:a z /tod*)pdp at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m1w ch np:du3:i. The last corner is occupied by a -3.0 mC charge. Find the electric fielp:di3wuhn :1 cd at the center of the square.

  Consider a square which is 1.0 m on a side. Charges aree-4zj2lf+-ntwl9: b nk bxhu4 placed at the 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 429 e-xn + lwlt:jbzh4 nuk-fbthe square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed inb2s2qx c7 xqf xil3/x9 a uniform electric field. c9q2x x3q7xlibsx2f/ What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass ofg;lw z(as*zg2 $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of mass 0.120 g is p sg7eil6rie16 xbl(-llaced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to beie l(6bil1s -lre7x 6g suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. +9 h. j8qlzu+dy1 lekt The ball is placed inside a uniform electric field, and is suspen8+9 heultdkqy+ j .1lzded 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. What is 9g k7.o8rq p. bix*e 6t6oqy;m /ravstthe magnituoa *kp.6;sv tx6 g qe rbq.i8o7mry/t9de of the 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. Whl3cx)u;7 gf hlat is the electric field 6.0 cmhuc 3x); g7llf from the center of the sphere?