State the law of conservation of electric v0.usf0jma) z charge.

  Is it possible for two negative charges to attract each .pedr4;t5c ze other?

  Is it possible for a positive and a negative charge to attract each othcw kiu9 ej*z+3er?

  A glass rod is rubbed with a piece of silk. During the process x lmcg ba:he(u,x*k 7vgd;) b;the glass rod acquires x;:ghulk ge ,xb)mav (7;cb*d a positive charge and the silk

  A proton carries a

  The model of the atom sho0y+yg q2 8azqows a

  A neutral atom alwaykys:xd /op1 9es has

  An atom has more electrons than protons. 6 e blt0u,1gja pq04vf The atom is

  Materials in which the electrons are bound ver 6oyg3-fk:6 zp;daox iy tightly to the nuclei are referredxaykpo-36:iz 6;d og f to as

  Materials in which the electrons are bound very looselytf+d1g 5yzin9u*6p4gsi wx. v to the nuclei and can move about freely wit5d 6 9ui4ys*f1ziw gx+.vgpn thin the material are referred to as

  A negatively charged rod is brought ne hq-s 18dm/fvear one end of an uncharged metal bar. The end of the metal bar farthest ffdhq ev1 -8/msrom the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neut9cg 6 fhvv8gf; gi+g hv)pkm9*ral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Whic ;9+v g9vf)kcvg* 68pig ghfmhh statement is correct?

  How can a negatively charged rod charge an electroscope positiv/oadr8ez l98xz1x a m6u:k*h zely?

  An originally neutral electroscope is briefly touchedap ;-efzclwtn,m; orc ;g v-3/ with a positively charged glass rg;co-mv a,w;fpten c; z/-rl3 od. The electroscope

  An originally neutral electroscope is grounded pzu78zs c/u m t y) jnykh*0)ven,1g*ubriefly while a positively charged glass rod is held near it. After the glass rod is removed, the electrovguz8)pyj k h /**,ny) utc0mez nu17sscope

  A positive object touches a neutr+jlt1i. 5n, 5n0:zx5b vqw)a fwoazl jal electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to th :l)zwfb q0 jjxozntv51+ni5,l a5a w.e leaves?

  A large negatively charged objw mz4*hki y;o4ect is placed on an 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 the negative object. At no time does either ball touch the negative obj4*4m z;ihyow kect. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb conswemzucak0 x* )njcp,18a*- e btant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lc7 lk0 tftq)d3arger in magnitude than the sfc )30 l7qttkdecond charge.

  Sphere A carries a net charge and sphere B is neutral. They are plag *;5w ov*y+mgvimv i3f dj9t.ced near each other on an ins9 ** . vm5dwvifgi;+jg3 tmvyoulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges 6 ocnz7p2n m+kq..7garo9x wu on both objects are doubled with z.c nm2uwx7knp 67 ooq+.gar9 no change in separation, the force between them

  Two charges are separated by a distance d and exer1dhjki(xc b 2vzz5 )y*yxh(*gt mutual attractive forces of F on each other. If the cha5) xg vzh1i(bhyyz d(j *ckx2*rges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a fo,tbx1g-f2 kyvrce F. What happens to the force between them if one charge is doubled, the other char ty,vxb-k21g fge 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 proton are separated by a distance of 1.0 m. Wpft 5m00w *i,icohr1w hat happens to the magnitude of the force on the proton if a second m0wohfwc t*1 p0i5,rielectron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens togl12 z 9qmlsh)j -1lj0aiw8je the magnitude of the force on the first electron if a 9 l011-8hezwg ljjaqiljs2m )second electron is placed next to the proton?

  An electron and a pr,0ti8 )keu+p lcic2.mt(kd n7y/dfzloton are separated by a distance of 1.0 m. What happens to the size of the force on the proton if the el7y.ilntt()i/dd,p0 cf+2 c l8kkzmeuectron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at td 6xg,y9haf glutrpv4: 30*y ihe 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 corners of the square. What0vafty i:u9hpx*g d3 r,gy46l 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 thexhz6/f zi8y 1e 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 acts on it. What is the magnitude of the force that acts on th x ieh81zz/f6ye center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is n,0r j7u9 08vccgtpo;vo p: zrhot a vector?

  At twice the distance from a point charge, +w+twr+h (saqthe strength of the electric field

  Is it possible to have a zero electric field value betweeq;v7ta h4toh9 n a negative and positive charge along the line joining the two co7h vt;t aqh49harges?

  Is it possible to have a zero electric field value between two positive char,5(5ev1 fjv+.ofop2 f hilrk sges along the line joining the two csvf+5,i .p(15eolfhf2rjv k oharges?

  Electric field lines ne mr4-:rtzd p;4jhaf d6ar psitive point charges

  The electric field shownzj8ns klk )n 2mrd bo,zf6lc1.av(x(.

  Can electric field lines intersect in m:,azwo r*xnod6 d *qn +ugz1lqa4.vqvkm * 4,free space?

  A solid block of metal in electrostatic equilial xi1n :teng9/)*i 8 mjvqoa)brium is placed in a uniform electric field. Give a statement concerning the el * m1:a t)a n9/x)qnoljgieiv8ectric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equalwp8w2wrr.f4 j 4ays66 f69 altvd*wtw diameters are each given thv68aj af96lw2www6yf*t4r str p .4 dwe same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden3o 3rl*0qkw7)cx9o trzw8up x table in a region where a uniform electric field ic0*83uq o 3xo7w wxzkrt )lrp9s directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric ch +(yjgo*o m0y lcv*l4te cl;8aarge

  A positive point charge is enclosed in a hollow metallic sph0v b z8nth;kciu25 jf8ere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directn50tu cv8;hbi2z jf8kly above the hollow sphere has

State three properties of eos /j 5l9* owg bulg qp79.syp)+-gujconductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron iscu6 eh.ek ;9xc $e = -1.6 \times 10^{-19} \; C$. 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)bh v9shahv, 6 protons than electrons does this piece of plastic have? ,bav6hs)hh9v

  What is the charge on 1 kg of prepc95ro jbnd/,*typb yt 7z.3otons?

  An atomic nucleus has a; fyo:rt i9aje9v,2b- olmd+w 87x ead 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, have charge values of 2.0 and -4.0 mf/ag -(xu4rj qbve2f1C, respectively. What is the magnitude of the electric force b xvuffe(j a4b/1 -2rqgetween them?

  A 1.0-C charge is 15 m from a second charge, and the for +e j-hlw yj+,v-g8dc; ub0quuce between them is 1.0 N. What is the magn;, g+u +y-dbjuc 0ej8qh l-wvuitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are th u*)n * uonq5du0g8sioey?

  The force between a oi8 e.f op6.ik$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.(n uchrrv7l4l+ y*kws 9 p:+kc0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the el y *ph9:+ckrw4+(7l skculrvnectric force between them?

  Three identical point charges of a knbor73y(-4+vht :/y mvh9jc6d bov 2.0 mC are placed on the x-axis. The first charge is at the origin, thekoh(moa 9y:v bct46nr/3+-jhdy 7vvb 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 origin?

  Three point charges are provph+fz 0v8ef dhj1n1do 4 xkeg1bs0603je5laced on the x-axis. 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 ar5n+3zf e1sg 6x014eo hej k vjf1vb d8o0h0dpre the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are lo2 m.9q h(w/qnymcgbn. pcn1g5 cated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC atg.mchy bnp529c mqw1./( ngqn x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and aekr52q/a9pxo3 slpi ( qd4wa tsy /96z 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 chars l9tw4r da36ipoz5/as (pk9/ey2qqx ge 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 = (p )4fh5sp bzjadoq9*5.0 nC is at (0, 0). What is the magnitudeq df94zspo*b) jh5(pa of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 jh*t--o ok0ek= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the kojhet0k -o *-5.0 nC charge?

  Three identical charges of 3.0 mCshvx ujz5,ch ) d/i+o2 are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which h) zu2od s+5jic,h/xvacts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated bzanc -( i,*d uwu(n:wdy 3.0 m. At what point, on a line between the two charges, would it be possible toi:uw*(n w,d zdn auc-( 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 +9q4.n m.41ztljofhxm i.,; et+v-qmjo.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net forjoxi.-.mej;fh o nlttz v1qm+4 .q4 ,mce on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. c.n1*qk6 beck Where can a third positive char 1cke* qkb6.ncge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 cq.t cmmv84gbnz 0g6q:s ;kk6 pb0y5b:g)rtpg. 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 the attraction of a fixgu:y6)mv/yr sp 2c3cued proton some distance above it. How far above the electro u)cv 26/ysgypr:mc u3n is the proton?

  Two 0.20-g metal spheres are hxb6hufmr t*ys e ;312zung from a common point by nonconducting threads which are 30 cm3 tb2*resy1z;f xmhu6 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 magnitugu8)oo2 a3bj ede of the electric field at a dibo8 ua )eg32ojstance of 1.0 m from the nucleus?

  What are the magnitude and directiegrlf;,8 zt n:on of the electric field at a distance of 1.50 m from ;,t: frn8 gleza 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test6szrz11v sxe 6 charge. What is the magnitude of the electric field at ths s1zz1e6r 6vxe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What il *, / p+6f pwkwlooxyy4rq;/i,pp-ebs the direction of the electriclp+ki6wy xp,* fol/r/e,4w-pp;by qo field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudrf0 6j qzc4c:9omot l7elqe7*e of the force expeecje:607l7 9c*qroftq o 4zlmrienced 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 ar:-al+jx yyt9sgm *ccbo3n1 ;o f )bd-ce separated by a distance of 4.0 m. What is the electric field at a point midway between the two charbdf* ts-a:gxoo l cmnyc- cy3;j1 +9)bges?

  A 5.0-mC charge is placed at the 0 cm marlnnb2iv nkcam .+0kqcmtf -,8 wzv*6(ka p9k.k of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 +ncf*la,km( tqnvk p2z9.6 .08kv bna mcwik-cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 -d bh mc,q-.rf3m v9jrmC charge is placed at the 50 cm mark.qrfrvhd -jc 3 9bmm.-, 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 = 0 y4i1 7f ;qfsamand x = 0.20 m. What is the magnitude of the electric field at4ma 7yfqf1i ;s the point midway between them?

  Three 3.0 mC charges are at the three cornerscb ha(1o90x4g mdf2pg 8h )ncw 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 ce4 hg 1wcp x9no2g hd8cam)f0(bnter of the square.

  Consider a square which m eoujku/3 2*ris 1.0 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 at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electriuu2m3o r/ek *jc field at the square's center?

  A force of 10 N acts on a charjk agtyc,ep4m5qb/+r)zx: / zge of 5.0 mC when it is placed in a uniform electric field. Whatk/cz4 gb:z/mx e rypqa+j5)t, is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a maun8l491 y9cyr ,(a 1khqpxpczss 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 6000 N . 1vz9u7bvzcdkkye8 3/C pointing downward. What charge must be placed on the ball kv73z1zv 9b8e ydc.uk for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The +c)(nl82irnlzd 4 hy*ib.gjcv p4q1 kball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the elec+czd4c8*gyn (j 1kill4 .bv)qirh2pn tric field?

  A metal sphere of radius 10 cm carries a charge of umas:9k w(3anr1t4 +hez jmgig* y;:l+2.0 mC. What is the magnitude of the electric field 5.0 cm fromnz(ma+49huil w1 :;se3 t rg: *maykjg the sphere's surface?

  A metal sphere of radius 2; hqys;)r8:rhq,s yu q.0 cm carries a charge of 3.0 mC. What is the electric fieldqqysrsh r;)y;u ,8h :q 6.0 cm from the center of the sphere?