State the law of conservation of electric charge.5oqhx r8 ):ly0b4 s /rrwm,mkrf 8us1h

  Is it possible for twohdca e+3 p*y0f5i qow k;8m5kx negative charges to attract each other?

  Is it possible for a positive and al0 *jg4wjp2v8hd (ha v negative charge to attract each other?

  A glass rod is rubbed wili/ sbtt-gg-;ke6 r g,7yt ar s44zj7zth a piece of silk. During the process the glass rod acquires a positive a;zrs47 yjrblk-g4e,i t7g t6-tzsg/ charge and the silk

  A proton carries a

  The model of the atom showlup)8bi en(6k 4xr.ior2* cops a

  A neutral atom always 3u)qo ahlkg( 4fj c06dhas

  An atom has more electr7vnrsnpd6 ; i/ons than protons. The atom is

  Materials in which the electrons are boh(+m 3pwhtiaqg yas7(b3d1j/ und very tightly to the nuclei are referred (hwsad 1t qhi3pjgy a/b73m+(to as

  Materials in which the electrons are bound v2l+skc4dd 6wj+a s(a2k; ghktery loosely to the nuclei and can move about freely within +dk 2a6 +sl akwdkhjsc(4gt; 2the material are referred to as

  A negatively charged rod is brought nearjfxv8w1ben oyi9 f e7 -.n.n6o one end of an uncharged metal bar. The end of the metal bar farthest fromio9 nne.oyf 6f. e8-vjwn17x b the charged rod will be charged

  Sphere A carries a nub7q+3jsr c9,di*,v-zuxi y(w q py* pet positive charge, and sphere B is neutral. They are placed near each other on an insulated tablup+,siydxy ,q* 7qzi*v9j3wr ub(- p ce. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscor.b19/ rnh glj;hk4q ape positively?

  An originally neutral electroscope is briefly * cpe7sr4jb (;ghye.ve3b. cetouched with a positively charged ry cvbhsec*4gpbe ;(7ee ..3jglass rod. The electroscope

  An originally neutral electroscope is grounded8 p helyfz,lxxd5+n)ezw *sea1i ,0s( briefly while a positively charged glass rod is held near it. After the g)xdn+z s0fs phwi(l 8,ye*e1xzae, 5l lass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and theos/y.s yhkqtnph4 b0(e ,(.ch leaves separate. Then a negative object .0yckb, tphs/y4n oe h(.qs(his brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged 236yd n8e brty1qh8-hanfw/z object is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touchf 8dn3 htyr-q 8a 2n6w1ehzby/es 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 no time does either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units oy2tv;8 lsl9j hvkc+z7pod8/i f the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance )zsn e) 3t0ahl45s9hdqnue -w d. The first charge is larger in m u4ht-)es law5n93ez 0 )qndshagnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. Tcvm4,i-h:bfu hey are placed near each other on f hc bv:im,-4uan insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges on 1) 0( vqr0y emdq7xtllboth objects al lvd1 m07q x0r)tq(eyre doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual atn ++ .fmi3moeytractive forces of F on each other. If the charges are separated by a distance of d/3, what are tf+3.myneo+im he new mutual forces?

  Two charged objects attract each other with a force F. What happens toqb m7*u -3usow ndv0df,1nc(j 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 original value? The force is now uc0u m ofsnj b7nd3v(*qdw-1, equal to

  An electron and a proton are separat* aq g.lb--n .acol+pwed by a distance of 1.0 m. What happens to the magnitude of *a-.lw qnb. gop-cla+the force on the proton if a second electron is placed next to the first electron?

  An electron and a prau n ksh(w8m5t*enzr/ p 2)9kioton are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if aetns u 8h9mwn)rzi k5k2p(/*a second electron is placed next to the proton?

  An electron and a proton are uhu z*p13g) gttc-h-qseparated by a distance of 1.0 m. What happens to the size of the force on the prchq1zput )*u- 3 gt-ghoton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of res : wxw9t/ dyxr7yxv( 6no/gmg/+,ka 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 the net electrostatic force acting onw yongr7v9t xx+ mk,r:seg /( /6/xdwy the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of:mdm.x12aqhk5 d9jk x 2eb) gx 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 charge due to a third charge of +Q placed at x ghd:m.xx21 5ead2k9 k bj)mqone of the other vertices?

  Which of the following is not a vector, 6fjro+8ru2 cgo; itk?

  At twice the distance from 9nax )k96sttj a point charge, the strength of the electric field

  Is it possible to have a zero electric field vysx9i nj j30v958aa vzh/w*eb alue between a negative and positive charge along the lineza ijw9h5xs8b 0ejvvy3/ a9n * joining the two charges?

  Is it possible to have a zero electric field v8.*i1fuyjdj ie 4jjby0 m 6y9ealue between two positive charges along the line joining the twoj6 e1y9yi8i yfjd ej04*b j.mu charges?

  Electric field lines ne*(l /*u , :eqtp+:nwaltezsqear psitive point charges

  The electric field sh c eq8us7,f,v.it n mg743zvxiown

  Can electric field lines intersect*( ec aokrp.8t in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform eleggo.mly6pd :*ctric field. Give a statement concerning the electric field in the bp6modyg:.g * llock's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each gi( ddd q hghv.h7dj,gvb7 gi-0cw+a+k (ven the same charge, the electric field (E) midway between tc h qk+gj b 7g+vw-h0gdh dd,.v(7(adihe center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform ep/of)fu q s f)(,fjwf(lectric field is directed straight upward. What c)of,p(fj()fufsw f/ qan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chyl; phxx.1w ;zxu,6ygarge

  A positive point charge is enclose9cz/q 6ihayd1d in a hollow metallic sphere that is grounded. As compared to the case without t dqc1ha9y /6zihe hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrium.: cn lr:r,f+f dp4ocf:

State Gauss's law.

  The charge carried by oh:wm(kwdq, ::y esmu5 ne 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 chargen*g eacn )xbl *rf53i* of +2.00 mC. How many more protons than electrons does this piece of plastfngiln rb*c* e)5x3*aic have?

  What is the charge on q2e ;q4t2nd3)f o-mvz vewh8 b1 kg of protons?

  An atomic nucleus has a charge ooe3ye2ah-7 gx b :so1w ii 5sv1wi:4acf $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, se)zdh a 4k7x);qmjgvi5-w(oql parated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electricwz;lkmga)oi )vhqdx(q5 - 7j 4 force between them?

  A 1.0-C charge is 15 m from a seconz cxp7s2i m(b mg6k6-yd charge, and the force between them is 1.0 N. What is the magnitudb2zsx 6mpy6- ci(k7mge of the second charge?

  Two 1.0-C charges have a force between them1mk3qf ue)3z.a7 mfg or0fnq4 of 1.0 N. How far apart are they?

  The force between a s36kgzldbidd; zf ak*(1 w5z+$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, g8vyxp.thwi b,n+acci0l. :/7lx (d n experience a 1.0-N force. If they are mpb0ctxih+ ,/innly.8gdc. x( v: l a7woved to a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC arui45;5o sol rve placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 c 4 5i;r5sooluvm, 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 +2.0p8r( oe .p*beo mC is placed at the origin, -2oe .erp*(b8 po.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 acts on the charge at the origin?

  Three point charges are located at the following iiy2q1qblbp)o 4 -hz; positions: 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 magnitudyi2qoh14b;b -pz qi )le of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a sec4;bx9o rlb j qp5hy4*lond point charge of -Q is placed at the upper-left corner. It is observed that an electrostat bbro954l4h y*q;px jlic 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 fz( r3cq j595xdwn,bnrv+7jnnC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the nennj x 5fzrn9q+vjc, (3r7dbw5t force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 =b;lao jj.) (b0jagu :k 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC charge? l)gk0jb:obuaj(; aj.

  Three identical charges of 3.0 mC are placed at the vertices of an eqr59 pa;ws 1l0dgvp ui0rybu;ff8ch/ +uilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force wf0 +i grb 58;1;phu/w rsf9dyp0lcauvhich acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what/+l5yi w9zktl 828g0srn,i 3nslucg a point, on a line between the two charges, 0t zy 5k 9u ricln8 gg8ilsn+/3as2l,wwould 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 -) :jwg4wff o3x8(4vxidbycforigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a tf(x3 ww8 f: cgj-44xv oyb)fdihird charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and,i a:q*j hx 3pph:-rwv.se*wf paz42h charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on i-,p.3ph xj4h wr hav:z*sf2ae :piw *qt is zero?

  A copper penny has a mass(c byyl ycf7p 8w,cl62 of 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 gravity by th *.1./ an*aehlorabub e attraction of a fixed proton some distance abon.l rb*ha ua.1be/a* ove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung fru; e6b ml(pu)z: +pizsom a common point by nonconducting threads which are 30 cm ez ;:i s+lbu(zup)pm6 long. Both are given identical charges, 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 the magnitude of the electricp fc,o.x/vs w5oo7 c+i field awio+ ocxpsc5 /v,f.7ot a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the elr8 g33ya+fhuz ectric field at a distance of 1.50 m from a ag8f3hu+y rz 350.0-nC charge?

  A 5.0-C charge is 10 m from a small tes8(hd1b-bxp kpt charge. What is the magnitude of the electric field at the location of the test c pkxd18bh pb(-harge?

  A 5.0-C charge is 10 m from a small test charge.8,ma2d llkk22hg9,, avx jb-vq*h deg k(x v+s What is the direction of the elecd8vkblevglxh, a*,m v(+kdshqk9, 2j2-g x 2atric field?

  A 5.0-C charge is 10 m from a small test charge. What is the y7 z: r1u)wqt/pubhdcd;/m yp5k )so :magnitude of the force experienced by a 1.0 nC charge plk1ushwm y:ud ;/ c: yo5p7t)dp)qr/zbaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distat e3 e)he5isvbs(+ap/ nce of 4.0 m. What is the electric field at a point mide 5eebsthpsi+ v/ 3)(away between the two charges?

  A 5.0-mC charge is placed at the 0 cm marllc n6x8wz. g4k of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. l6lz8g 4x.nw c What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placeu4sd q1a 5g3w jbsyac85awl)q .8v+d qd at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what poq+db sdyswa j l8w5vu53a.41q 8q)cagint on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = , p ,gxemg 4n*3*jex.i3erx ud0 and x = 0.20 m. What is the magnitude of the electric finxde3*pgi .g m34re*,x u,xejeld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. T iqat7w75td5hrby.a.he last corner is occupied by a -3.0 mC c i a5w77tqby t.dh.5arharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the corners fze q2cv/3vn 3of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1);n qv2zfc3v/e 3 +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 s4n korve,xh md7l7 qj/9*w-uof 5.0 mC when it is placed in a uniform electri-nv7es9m ,k* hxud/ro jq4 7wlc field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hvy 4q3yts-: xaas 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 electric field of 600044f 5vk;sjei3lbi 2ed N/C pointing downward. What cha45iesde2 4fi ;vblk3jrge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.15 rh3 g8(sfysyjep, 3f60 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended againsshjygfr 8yf(3s6 p 3e,t the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carr91 bj-r -.r6h)xmo,cnib2y ps qiv8 gaies a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surfa2 piy61o qbh-- ,)rgrjia xnbv8.s9cmce?

  A metal sphere of radius 2.0 cm carries a charge of 3. li ou *pl:x 8sqnnhlvp-q195-0 mC. What is the electric field 6.0 cm from the center of th *p soq-v8u9:x 5qnl-p1hlnlie sphere?