State the law of conservation of elerd6 23ik.u eucd 8i hhbx)28e9 nnukunq,jl3 6ctric charge.

  Is it possible for two negative chargo 3o*05rn 8t rmv1lmj/s1dc hkf1pmr*es to attract each other?

  Is it possible for a positive and a negative charge to attract each ot if8c,75mb 5th5fhdrjbj s*56 p6icqsher?

  A glass rod is rubbed with a piece of silk. During the process ,2:xn bvl;2 lrcxv qb;/uuq/vthe glass rod acquires a positive charge anrx c vq/u/b;2llb v:nv2 ,x;uqd the silk

  A proton carries a

  The model of the atom sl;2mwa-zur 0rt0v+2 go3cu mphows a

  A neutral atom alway g+,0 t90s6b kmy9wo pyfjn.lus has

  An atom has more electrons than protons. The +pucn nr5m l(3 6ibp/watom is

  Materials in which the electrons are bound very tightly to the nuclei are referrf .n+2,uyceaa4 b2 8uowt.hvmemo2a4 .u nuhv.+ay e8b2tc,wfd to as

  Materials in which the elecebo-0ey t. ab 1;c.k ic57osodtrons are bound very loosely to the nuclei and can move about freely within the material are referr;yo7 etsb.o o0c i5 bk.1-caeded to as

  A negatively charged r eoryy.bln/ie)-z x. 7od is brought near one end of an uncharged metal bar. The end of the metal bar farnoxb..yee7r z ly/-i)thest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are plap0h3j2gaib, c ced near each other on an insulated table. Sphere B is briefly touched witg32pb h j0,acih a wire that is grounded. Which statement is correct?

  How can a negatively charged rod chq )jl4gus lw:7du.3zx arge an electroscope positively?

  An originally neutral electrosc72knotjzz62l: gmyjarq ic.2 o,p 46nope is briefly touched with a positively charged glass rod. T.i2z 26c7:,plmj4jny ngtoz qao26rkhe electroscope

  An originally neutral electroscope is grounded briefly while a positively ch z xko0(;u9colarged glass rod is ;9 koc(xzluo0 held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutralwefom.f aml )nk51 zoc:rc,31 electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?nwol1 3:r.zma f)1ke5c,fco m

  A large negatively charged object is placed on an insvx0or1wo3x1(z bl)niulated 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, butvo xi3l11wornx bz(0) 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 thels/a0wx- 4t) o:oarch Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firstus,s 6sj/ 2:hn ,pswdx charge is larger iun 2sh6p, / j,:ssswdxn magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are pla11jrqpyy)g p ucyo2;oe;7sff da,- y-ced near each other on an insulated table. Which statement best describe)prc;-j21ey;7d sof-yp 1u fyog qy, as the electrostatic force between them?

  Two charged objects attract each other with a certain fo mh /sgfgo t 93nipl2l9/v*xe lheg:a(iz:45hrce. If the charges on both objects areipegix4v (l9m/ z*ogn3f9:l2hgt:he/5 l h as doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exe ; /bp pxb/r8hx9,wgqt/o;4 edjk rgt1rt mutual attractive forces of F on each other. If the charges are sepkb ;x/wej;pgtp,hg / b18 otqx/4d9rrarated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the)/ zmb8r1 iud8xjl:tu 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 isi 8)m tlzudb/rx:u81j now equal to

  An electron and a proton are separated by a distance of 1.0 m. Wholxo sbpr0sq3g n55 :3at happens to the magnitude of the force on the proton if a second electrols 3:g3op5qrsx0bno 5n is placed next to the first electron?

  An electron and a proton are separated ;7 bc6q)mtu rg 9dnn-ji/tzq;by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a sec r;cd tmqz)7i-;t gun9n /jbq6ond electron is placed next to the proton?

  An electron and a proton are separated by a 0:adkqmf:o;jw8r 9ti distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50aqd9ojtf:8 mwk ;ri:0 m closer to the proton?

  A point charge of +Q is placed at the center of a*(8ldx jsy o6flnl* ;(. dfclm 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 othef. dj sol*6x*( nym(lc8l;dflr 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 *jj7qh cz,kf)triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts onhfcz*k)j q, j7 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 followint7ax.ez 5t seu9 02tfdg is not a vector?

  At twice the distance from a point charge, the strengtsc 4ayq oy.9a ct94db2h of the electric field

  Is it possible to hav+*pum.*xb pb,knkp+nry u ohh)lya -(65d8gde a zero electric field value between a negative and positive charge along the line joinindhnpg p.h+)k ,b*d y6+xukul5b* p-a(nm8 oy rg the two charges?

  Is it possible to have a zero electric field value between two positive chargh6);xgxji2 eh4(ez4j z by (zles along the l62zgjz4y )(hexx; ei(j l hbz4ine joining the two charges?

  Electric field lines near psiteo+pvun4; i h*ive point charges

  The electric field s4 +59wvtglma,nta 8tkhown

  Can electric field lines intersect xgp zsjwo:341x 6xysc h 5p*6zin free space?

  A solid block of metal in electrostatic e +-cn7-n ifacfquilibrium is placed in a uniform electric field. nni c-c-7af+ fGive a statement concerning the electric field in the block's interior.

  If a solid metal sphere anosp41xvk qac+ h3 qe1*d a hollow metal sphere of equal diameters are each given the same charge, the electric field (ae3xq k1s cho4*qvp1+E) midway between the center and the surface is

  A cubic block of aluminum rests b ,kjp ty*h80bx.bcm8 wvooqt :9 -f.ion a wooden table in a region where a uniform electrio*0bcyohmt x. w8bk .ftq, -8:i9vjpb c field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nea)yhf+l-hyce- ku 5qq5 r an electric charge

  A positive point charge is enclosed in a holloy qnwlu)sxl0y+ml5z; 4(d , nr jue1kq7mhw+ 2w metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly +q 4n75ky1(wursdqynm wlmz 2l0eu )j+ xl;h, above the hollow sphere has

State three properties of conductorsrgx.zme,kvga5gzm 5qd*21l 4 in static equilibrium.

State Gauss's law.

  The charge carried by one electron i nzcf)z20v hk ozx5+;(7phcf-v nwji.s $e = -1.6 \times 10^{-19} \; C$. 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 protcjq. hf .ih.6qons than electrons does this piece of plastiqj.6hf qh.. cic have?

  What is the charge onq2/ /3zkguhg b 1 kg of protons?

  An atomic nucleus hasio vvd1b3w2 aw /zb,9rg (mt0b a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated z 8yc(kp8+vi (ulhqqh*w ux271mws3mby 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the maq (wh lz7p(1c8yqsi3+*kmxuh 2uvw m 8gnitude of the electric force between them?

  A 1.0-C charge is 15 5 rqafu0 a*c5dm from a second charge, and the force between them is 1.0 N. What is the magnitude of a5cuf0* r 5adqthe second charge?

  Two 1.0-C charges have a force between them of 1ul2whn2 ;xl gdt1 .r yeit0foli.3c:1.0 N. How far apart are they?

  The force between a iipg2ki t602 w$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2nj (23*z3hymfut.5xqpaqko9 .0 cm apart, experience a 1.0-N force. If they are moved to a neum33htp2 j.yazf nx * k5qqo9(w separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The firwcf53;/fciud5 oa9 d est 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 9w/5di3ofcaf 5 duc;eacts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mql s;by fg:,e1gc f.61a k:h3;0pum pl(e cfmgC 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 abclhffm gg ; q,mey3 s(:pgec;:u11f 0alp. k6nd direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located att( 1f zhwoa sf;ylst0b(47 8 gu0(incn the following 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 magnitude ow(;b0f gs ya4 lzfc7u(snth (8tn0i 1of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a s0t- v tfzqr/vab 6a3e8econd point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on th8ze6q -tar/03 ft vbave 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 = -1gr8a 6n,hn lx,.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at a6r,,x hnl 8ng(0, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.3bp:ij;h0 8 4fo9y9hsikjt u ,p0 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thep i49u0fkhpt ;9 8j,sbhi :jyo direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices om)vmkiqlp0 );,;fkk - exj )xxf an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on ank f) jq),m;kxel0p)xk;mxv- iy one of the charges?

  Consider point charges of h7hhmp1ty e;))yyo1j +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 charge of -Q sucojemhhy1p); yt)h7 1yh 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 onkyo)wn9ya jku0/6j-4l qod/z the x-axis can a third charge be placed so the netod9 uyojkj4l/znq -) k yaw6/0 force on it is zero?

  Charge +2q is placed at the origin an /ajnrz5a(gh -d charge -q is placed at x = 2a. Where can a third positive charge +q be placed so tha nhzar 5/ja(g-t the force on it is zero?

  A copper penny has a mass of 3.0 g. A total ofe0y+gi(0-b4jo x ylps $4.0 \times 10^{12} \; electrons$ 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 grakwlr,mjcb47tikv 1.64 /f xkkvity by the attraction of a fixed proton some distance above it. How fc ,kmtf47xlv r1w kk. /4bjk6iar above the electron is the proton?

  Two 0.20-g metal spher,gz*m-c 5lh 4gu vrg1hes are hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges-vlm4hchu *gr1,gg5 z, 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 tvgr kk6+u.b+u he magnitude of the electric field at a distance of 1.0 m from tb +ku6g .vk+ruhe nucleus?

  What are the magnitude and direction of the electric field at a distance o+derdq ;.fp fc1275 a4 ehpdmsf 1.50 m fromed7f.p 2m5f s 4chrp;a+ e1qdd a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tesezz qg e - -/,(doz4rv21gczbd :tdpw2t charge. What is the magnitude of the electric field at the location of the test2 pzqedgddct z b:1z-ovg w e/z-,42(r charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction oq*ie,f(zfi.x pt 3;9 .jprfoqf the electric field. ppxf3fr;z.( *9tqqoj e fi,i?

  A 5.0-C charge is 10 m from a seq5;(nz - ld;a :okdprmall test charge. What is the magnitude of the force experie5r:k lo d dnz;q;(-paenced 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 separated byup;r*7g f v5 1yeuc6oa ,;cjcr a distance of 4.0 m. What is the electric g75fu crr ;,jyua1vo;cc6ep * field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick afb8d+m d 0roa-ni6f6bnd a -4.0 mC charge is pb+n 6f6o-raimdbf8d 0laced at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter st(zyi o5w aw-p3ick and a -4.0 mC charge is placed at the 50 cm mark. At whz(-3oawp i 5wyat point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC aeb,:u0ki + ,yuxd 3jn+*wm qyzre placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway between them?yui,*zdk0 mu:e3wx +y,+ jq nb

  Three 3.0 mC charges are at the three cor q1x5 gon/vo8pju:o hpvdg)17ners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the x7:gou58 qjpn)1 vv/op 1hdogsquare.

  Consider a square which is 1.0 m on a side. Charges are plam1 /f d)9jva1c zwa;raced at the corners of the square as ff9a1ca/j z1av d; )rwmollows: +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 acts on a charge of 5.0 mC when it i lz( 7v2k/gbvj jvtt52s placed in a uniform electric field. What is the magnitude of vljzjb v (k vgt27/52tthis electric field?

  A particle with a charge of 4.0 mC has ay8 wck).odn yv k+)dp/ 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 e 8eec(ee b (c2q:vff2p+x mi7f f)n:nllectric field of 6000 N/C pointing downward. What charge must be placed on the ball fneilqemc8vff)e 7c f (2xb ::pf+n2(eor it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Tp xeokpdu(o, 30j;zrp;1x9v nw(uk+ ihe ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are t;xu(0p, n1;xkz ijdwpu(ookp+ vr 9e3he magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the majr(.e f9 ntgf5gnitude of the electric field 5.0 cm from the sphere's surface?t( 9ne5f. frgj

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is tv gr9t9 oqc*w 4h/ur)v 8g)wrdhe electric field 6.0 cm from the center of the c 8w9r w/g*9)vhr4u oqgd)vtrsphere?