State the law of conservati 80bg+tp9,hmhsj z3e von of electric charge.

  Is it possible for tiq(k+:hl ksbxbvl+exu *s2 7) wo negative charges to attract each other?

  Is it possible for a positive a )y.z l 8ma,roxgx9x-snd a negative charge to attract each other?

  A glass rod is rubbed with a piece of silkq8t+oh8-adaca f5m2/ e1d rau . During the process the glass rod acquires a positive charge and the silkd fmu t a-+5qc/ ahade2ar8o81

  A proton carries a

  The model of the atox1d fgq7-ssk *m shows a

  A neutral atom alway)zw ne hc0 )ds)1zu gn2mjooc6b4iu+5 s has

  An atom has more electrons tjqb)qm z:g.sk .(smd.han protons. The atom is

  Materials in which the electro eeim78/-fhdfvy0h, go3 a*evty4kz 7ns are bound very tightly to the nuclei are referred tt8 f70dy/i,k hfm * e4ah-v3v7geoyezo as

  Materials in which the electrons are bound very looitewa(u nu/ ;5sely to the nuclei and can move about freel5/u (intaeu w;y within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged m ;ie-r794jshdh9n x owetal bar. The enxdsh9 rh97 ij4o-;w ned of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive cs2gn n2rg .td9,lbvw r 61bcruin c942harge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is g9nrl nbg1, w64di2vs. c2butn29r c rgrounded. Which statement is correct?

  How can a negatively clnsczn r39k+8harged rod charge an electroscope positively?

  An originally neutral electroscope is bri++hx*w +cmb8tmt bq4-s y :aziefly touched with a positively charged glx wysa+zt8qhi- m b4tb:c*m++ass rod. The electroscope

  An originally neutral electroscope is grounded brieowgp7fxkof 9/m nxxl4 c s53)8fly while a positively charged glass rod is held near it. After the glass rod is removed, the electrosc)xw s 5g39fc84m oploxk7/nfx ope

  A positive object touches a neutral electroscope, and the leaves separate. wq ,mzns+ (ksrz4wp+*Then a negative object is brought near t++zpqs(zww msk4 *n,r he electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an ch5 )con)uw3wvwck ym.0+/e oinsulated 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, ) ccv )n. hw03+youkcemww5 o/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 of the Coulomb constana9dkp p.lft1gq wx+3m5 m7c4at $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge ie8sw l1oh;qz /sn,3acs larger in magnitude than the seco;w 1 sosl 3,a8/zhcqnend charge.

  Sphere A carries a net charge and sphere B is neutral. They a8v;nccezko:v 48uw 47 rmk4xypd0ni 2re placed near each other on an insulated table. Which statement best describes the ele x0k4miew428vru7 nyc :onzkvp;48dc ctrostatic force between them?

  Two charged objects attract each other wt8 r*buc.xvc+ith a certain force. If the charges on both objects are doubled with no change in separation, the * crbc8.+v txuforce between them

  Two charges are separated by a /,f3am5 .xp +hat.vjen z4hxqdistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new xh.vh / qtxjza.4ne+m ,a5fp3 mutual forces?

  Two charged objects attract each other ( o 3l6s6ju,lz*nup 1rsifed:with a force F. What happens to the force between them if one charge is,z lr6u pu1dn ei*o63jf(s:sl 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 equal to

  An electron and a protov wdy+vicpv- eqt:j2/w 33s4o n are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed3jyv-: 4w2v q+dpe /iwt3 vcos next to the first electron?

  An electron and a proton are separated byaj6 fvt)08lr1coiyetq5tb:jm7,;u/* o apd t a distance of 1.0 m. What happens to the magnitude of the force on the first electron if )aro8pe: 1q7l it v0m/ ; o,dc*5 tbatftj6yuja second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What dr8ib,9-dhjh(a) bfa happens to the size of the force on the prot8r)a(fjad i b-9 h,dbhon if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q v wd5fsv+r3l1 is placed at the center 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 cornev+l1rs5vw 3 fdrs 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 bh1m8 (x 5dhu gy0kd* *vpalvo8j5xx9centroid of an equilateral triangle. When aa p x8xh5*0xbgkymo*uv5jd (8v1 d9h l 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 one of the other vertices?

  Which of the followihqcx w6l).af1 ng is not a vector?

  At twice the distance from a point charge, the strength of the6r3q6vgm t 9tg electric field

  Is it possible to have a zero elm a6 *kzj:wkmj* b/e;bectric field value between a negative and positive charge aloejz;kb m bam w*k/:6j*ng the line joining the two charges?

  Is it possible to have a zero electric field vayws5o44x 8n cvkez8.t6qxur; lue between two positive charges along the line joining the two c.;tkrou wex46yc s4n8 5 x8zqvharges?

  Electric field lines near psit) uk4fs+cdxp1; cr3 pzive point charges

  The electric field showikr8, , mey dcgbjr.n42hn5, on

  Can electric field lines intersect in fre - k 4m*:wr/onrcs*eunjs4i )ee space?

  A solid block of metal in electrostatic equd83bttfb 5b *)iktcw ;ilibrium is placed in a uniform electric field.b8* tbkfit5 ; 3d)twcb Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters sqymhmk/nw d +*p7c hi7,jtz9ui( 46 7ajc-heare each given the same charge, the electric field (E) midway between the centera4yq 6ihdmuwc *9e jh7/+c j7s- mthzp,kn (7i and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifo3 e4rclbfzz(qo5 7mb2rm electric field is directed str 25crmz(b fzeo73q4 blaight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in elxb/d8d/l7cb pectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow mey:i0 (-0agsyzn g:dr g(wre/a tallic sphere that is grounded. A0ggd ya0s (r:e/-zngy(a ri:ws compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in stjr-3jh7gueq gg;xj4 q b:k --ij,g h)datic equilibrium.

State Gauss's law.

  The charge carried by onefr+g:t 66er jy)x1st i 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 more proto5aj b1uwrv+b 0m,zg*op)xh9 bns than electrons does this piece of plastic bv)zwbmpj*u9bx +g,0oah 5r1have?

  What is the charge on 1 kg of(ydr5k3b6hijzr3 btdk( 4 :wi protons?

  An atomic nucleus has a char x esji hr7dul).l6+y2d,or rc*5hs 0sge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by )9f 5.lghnrz x1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betwee5znh.g ) x9rfln them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is am*z1 )hl)k7 tb9igw t1.0 N. What is the magnitude of the second chatkb1g i7 z) w)9t*almhrge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apartsn,h*hblu,b /eh. nja u1jw. . are they?

  The force between a -ph:.yc p+aak $30 \; mC$ 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.-+ cpslsh rx+( If they are moved to a new separatio+ l+ pcss(rx-hn 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 fffwp pzv4 z 8h:gh-9-sirst 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 ma w:hf8p9v4--g hszfzpgnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-am)yqtn 6;8jh+1m fdiw xis. A charge of +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 mark. What are the magnitude and direction of the electrostatic force whi n6)1y+fm hwqi;8mj tdch acts on the charge at the origin?

  Three point charges are located at the fa r1-y/mu1tkz ollowing 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 magniy t1ua1 -m/zkrtude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the cef.2mu*q 7ve4kn12ljv rpdal / nter 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 on the positive charge at the center. What is the magnitude of thd*qr1f./2lpake72 mn v jl uv4e 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 in0m9ohlz31- lblow ;nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitudel-1iol 0o3m; lw hznb9 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 (0, 0.10 m); Q3 = 5//qvadr zd c)7.0 nC is at (0, 0). 7)c /rdv d/azq What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0u6j;s/s;mqwfed h2m 7 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the6uf7m se/ mj;swq2 ;hd electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 -y ieckgi g6nv4k9*f. m. At what point, oe64. ck9fv inigk- *gyn a line between the two charges, would 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 origin and a m y:me0yr7kk* +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 ze ym*km7e0 :yrkro?

  Charge +2q is placed at the origin and charge -q is placed at g:wr59gh.; :3zg+wic(q qv9 fickxxa x = 2a. Where can a third positqaz+(v giq9;wgk :rc3g xh95:.x w fciive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A zjt5ye lt1 g9-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 attraction of a fixed 9+ 9el3bvlx 59o8emey l4mazv proton some dism89ye+9vvm4zoe lale9x5l3 b tance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads kp7)i 0fd l1ybwhich are 30 cm long. Both are given idenklyfdb i7 )p10tical 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 i2rd zlk0(pwxqti4xhi w i2 .))s the magnitude of the electric field at a distance of 1.0 m from the nucleus?xqw )i0 iz 2tp(.4ldw)2krixh

  What are the magnitui;7q) tqhp r5bde and direction of the electric field at a distance of 1.50 m q ;b 7ip5thqr)from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charf)3a:u d:oxe ffh2( lyge. What is the magnitude of the elec)2fxlfa:o 3:yduh (fetric field at the location of the test charge?

  A 5.0-C charge is 10 m frkh r7 h+/j/um*q(vnm a: umt.yom a small test charge. What is the direction of the electricy/a.mutrhh*/7v(j :qm u+n k m field?

  A 5.0-C charge is 10 m from a small test charge. What is the ma2og6k11ub c-po : atf9 sk.jskgnitude of the force experienced by a 1.0 nC charge place-cks1:jkbk1 f g u poo.9t2as6d at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance oo+dl/up*hs; o fw+r7cf 4.0 m. What is the electric field at a point midwaypw+7c oso*uhfl ;+d r/ between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stictg a7* g.qxjwmtd1 4zx pms78-qb8m ,bk and a -4.0 mC charge is plbm* s7x a-,mtqzgjtxq7wp8.48d gb1m aced 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 mab:,p64 o keckz- 0sqhurk of a meter stick and a -4.0 mC charge is placed at the 50 c ,ckk4:zb0s uh-opeq6m mark. At what point 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 =f y q8,y xzd4q5l(o;mt 0 and x = 0.20 m. Whd8 zqx5tm4qy,l;fyo ( at is the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thiha-5r1azk:i2s;fhqf0 ;dehca(t*z c5y n 6 eree corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. h:i fc hi-z d(y e*a ;eh5z;q 6rfs0k25anca1tFind the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Cu5yjmybvev+. 0r8 4 qsharges 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 at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the squa+y uyqs4.v8vbm 50je rre's center?

  A force of 10 N acts on a charge of 5.0 mC5fk. akx6iy h g pkz2,f(3zig5 when it is placed in a uniform electric field. What is the magnitude of t. k3 ,zxfkaki(6py fizg5h5g2his electric field?

  A particle with a charge .gsl2 )w2 yakkn/0fq eof 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 0.120,8y/ s ,ovddsk g is placed in an electric field of 6000 N/C pointing downwark 8s/,dydv,so d. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g caxaj8:,( xjpiu 6j+h5t1i n-2n mbqlg lrries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force on,(1u-x5jjn: q8pbli+x6 a m l2itjghf gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 c wxsd26y9go 7by ggr)*m carries a charge of +2.0 mC. What is the magnitude of the*9 g)67gw2rxy osbyg d electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a cha/x) f c2x.eieudg2 1jxrge of 3.0 mC. What is the electric i/ fge)2.1d uxj cex2xfield 6.0 cm from the center of the sphere?