State the law of conservation of electric fzy3q0 y1 9xu,n1glq*p)lclr charge.

  Is it possible for two negative charges to attract each othero(eouoips1 x: t/y*n u9 b,eqn)ka7j 6?

  Is it possible for a positive and a negative charge to atco4o34tdwe+4csoi5h u,czxwb zq / 8(tract each other?

  A glass rod is rubbed wixd5k8y:9u cs xth a piece of silk. During the process the glass rod acquires a pox8xy:5u sckd 9sitive charge and the silk

  A proton carries a

  The model of the atom show,5 +t784s m3i2bbe kgzbj6r/nclpeyvs a

  A neutral atom always hatnh);0(0se np z: axzcs

  An atom has more electrons than protons. /vk*zvjb pu(/ q)iyu4 The atom is

  Materials in which the electrons are bound very tightly;gfq*cde.-w z i.u8wcww;t2kb3h -uo 8fwo3 r to the nuclei are referred to3wwufiwr.*to 8uh8.bfe-;c qo- d gw ;z3w2ck as

  Materials in which the electrons are bound very loosely to th/ndrd4ja2 6wp, pk5g8wt0m lqe nuclei and can move about freely w2j d0 kr45wgpnp6d ,walq8 /mtithin the material are referred to as

  A negatively charged rod is brought near op: )p ;a hohrn; zvbcyx:942pnne end of an uncharged metal bar. The end of the metal bar farthest from the v ac p z9b:;y2h:hn;xrp 4)npocharged rod will be charged

  Sphere A carries a net positive charge, and sphc 2vtwcw(fb:/y 6() flz;pt h+ us4jtsere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire t sb;jcp(vs24)wf zt(ut l:+tyf6/w hchat is grounded. Which statement is correct?

  How can a negatively chavn0e*4 i1(y jo b9azokoza 1m0rged rod charge an electroscope positively?

  An originally neutral electroscopejhqz :u+yyyuwd 1)/5;qx9 j+8xp rszn is briefly touched with a positively charged glass rod. The electros9 8u)qyj:n1r wsqyp5+u xzh;+/jxz y dcope

  An originally neutral electroscope is grounded brieqz+1:e .f-b i7c9y3 q36pytlomu qyoi fly while a positively charged go 736+yz- c1qbyql.o u3q:imef9ypt ilass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touchesu*y0)03 vlgjws-vo) q8 ejiuc a neutral electroscope, and the leaves separate. Then a negative object is brought near the electr vylvc ) wojuj0eg)- s3iq0u*8oscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is place/ +do 9-5o.jfwyalwjn d on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches j- fw9+yln.oj/ o5wad 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 of the Coulomb cp:rd rc- n+au*ua4oq, onstant $k$, which appears in Coulomb's law?

  Two charged objects are separ-o,g xz c.j.kfated by a distance d. The first charge is larger in magnitux, -g zf.j.ckode than the second charge.

  Sphere A carries a net chmz -vd1yp1sn:arge and sphere B is neutral. They are placed near each other on an insulated table. Whmn1zp1-svy d: ich statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the ch 4-,g-yy hzb0v zokm +wxqro8-3bie8aarges on both objects are doubled with no change in separation, the force between themyqzr-8 -b -ok4x vy0i,8owhazmbe g+3

  Two charges are separated by a distance d and exert mutpk5we2m6nqfhq 9 hz0twi.c96 ual attractive forces of F on each other. If the charges are separated by a distance of d/3, w9it6f hzc 9qw2k6. qwpmh50en hat are the new mutual forces?

  Two charged objects attract each other 5ph+tczk1t( xwith 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-fourth its original value? The f xk5zc1ttp+h (orce is now equal to

  An electron and a proton are separated by a distance of 1.0 m. zrt8n 1)gp,hj What happens to the magnitude of the force on the proton if a second electron is placed next to the firszh8j,r)t 1 ngpt electron?

  An electron and a proton are separated by a distance of 1.0 m. What hg4-s ts)k vuy-appens to the magnitude of the force 4sg yu)k -s-vton the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance ofa+ r3lu g qwgpenh2l2(m(,4vi 1.0 m. What happens to the size of the fo(3ulehq lrp,+w vi24g( ngm2arce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed ak1-c hfwldpzak), ) 2s 4/0trs2gcxg0jtgqq/t 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 2qrafh0 s/x-q g, w)4 k dc2g/lz1tcsjgpt0)k 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 triangl xsep xu54e6euol4n,3 e. When a second chargpueux,5oxn e4l es643 e 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 is ;/vgoxex+b b*wuj- 6 w: c,hrgnot a vector?

  At twice the distance from a point charge, the strength 2zyo5m 1-d j:aj nve(hof the electric field

  Is it possible to have a zero electric field valu i 2azf7dg;+vvs- ;f,ceyaz 5fe between a negative and positive charge along the line joining the two f2a+fvgf ceiadz s;;,y-5v7z charges?

  Is it possible to have a zernb -vk,w66gf qp3 n1j, kck8mno electric field value between two positive charges along the line joining the two char8nn,ckk mw6qj 3n1,pgvkf-6bges?

  Electric field lines near psiti duv.2af2c+9jxya8k fve point charges

  The electric field sh :t5vesrj+6(jja+ els8 sgy*y own

  Can electric field lines intersect l/nffhsqk-:b9 md* ua3fzz*3in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform electr-5*ov* ep8)zyn.o4(du 7gu tomggwiric fiemp4-ov tu 7or. *iyggu5* 8(oedwz)gn ld. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphv5(qwp9cd9 /en* )vvdygwlh +ere of equal diameters are each given the same charge, the electric field (E) midway between the center anv9lqhew5/+v*cd d ()g wp9ynvd the surface is

  A cubic block of aluminum rests on a wooden table 4zyd; oz0*u m erl1/jb(rbhf1 in a region where a uniform electric field is directed straight upward. What can be said concerning the charge h ym14re*jz1l; (boduz0rbf / on the block's top surface?

  If a conductor is in electrostatic sr6 ii6uy-s4 +sn,z leequilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is gro6ymnvouy+g1 5xwmg0.( prka :unded. a:0ov5m6 g.rmukwg+1y( yp x nAs compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conduct1: tc e4a yqhn;fc8zg4;mwv v/(sd8uvbf2 r,d ors in static equilibrium.

State Gauss's law.

  The charge carried by one rh9hfdii*srs3l24 nn(ir-v/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 n.zj2i0yhi(lcx ) ig: det charge of +2.00 mC. How many more protons than electrons does thid( ji xl:h)iy. ci0z2gs piece of plastic have?

  What is the charge on 1 kg of prb cq y+4 mqu,qedjf6+ 2copgvd1un-/4otons?

  An atomic nucleus has a charge offadx/8bi9lsrjg , i3; $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated 0-v k:z929l t-pgizkty gnhe- by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. Whl 9inzt90z: v- k-ek-tgy 2hgpat is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, apkx y.fz5z63p;a+1c*d c u jvsnd the force between them is 1.0 N. What is the magnitude of the sec ;pazy6 j5p1*s +uxc.3cvzfkdond charge?

  Two 1.0-C charges have a force y0l+x h+ut niy.ve02c between them of 1.0 N. How far apart are they?

  The force between a f.z t+m9ewul/$30 \; mC$ 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 the vp.ng1;b v4fvqz75p gy are moved to a new separvvb fgz17nvgpp4; q.5ation of 8.0 cm, what is the electric force between them?

  Three identical point charges oi quit7r- ;qoq* dtu;8f 2.0 mC are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm,tdruqq*i7t;qi; o-u8 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 placedt:tk2)xjgu1 e eu*k v8,c v8fv 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 are the magnitude and direction of the electrostatic force which acts on the charge at the origin?tek x fvc8 ),uv21v*kj:tg8ue

  Three point charges are located at the following positions: Q1 =k7vz cke4yju6;i vy7 , 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 mk;i 4zuvejk7cv7y 6 ,yagnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and46-e*t4 az/j qzwp lzz 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 cenl qjt za/zw4p6ze-* z4ter. 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 a5p:+g xtcdrrvw8 7.rwb wa, v,t (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC cha c8trwbvp+5:vr gawd. w,rx7,rge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is h k/rhn.i1 f(p, pnw(dat (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5..nd(/hhwnp pr,f(k i1 0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertih15kv4s pz8sjfyk42j ces of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on an k5 48p42shvfk ysjz1jy one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At q;up6klg-q) j3czgx.what point, on a line between the two cha-kc3zp qgu.q;)l g6xjrges, 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 5lp241cdr fsoa +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 itfsr2 d4ol5 pc1 is zero?

  Charge +2q is placed at/3r/9 jrrbyv8tee0i d the origin and charge -q is placed at x = 2a. Where can a 03t9ryrvj 8rb/edi /e third positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass .nqu hb+l4wu*0tyiokwg*s.x ,:u d4n 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 a1t63jjyycn4amw), y:t 96n k lfji5 hsgainst the force of gravity by the attraction of a fixed proton some distance above it. How far above the electro 5c ,ih6t:yy94ny3 fwjkj 1ns 6j)tlamn is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductiny j ws4r*b7;v ;bhscrl,jka7,6c h.ppg threads which are 30 cm long. Bothc . wk6;hj7ass y,j74pc *h;bv pbrr,l 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 magniturg hr. 4jff)ez43ye wm(5q6qtde of the electric field at a distqy63gqw rtefrj4he)z.4 5f(m ance of 1.0 m from the nucleus?

  What are the magnitude and uhyt n26n z ,gltv(on :233syodirection of the electric field at a distance of 1.50 m from a 50.0-nC c3 (yuhltnnogs2: 3tv6 zn,2oyharge?

  A 5.0-C charge is 10s:q+ ( 7mje4rfyu.jug m from a small test charge. What is the magnitude of the electric field at the su :je+f .jqmgry7 4u(location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What )bdkad;u 8i3,+ylpv bis the direction of the elect+l)vuid,p b 8bdy;a k3ric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of thek +5; by9bgvnudvka 7(agi+u: force experienced by a 1.0 nC charge placed at the location ofub;v7kka: 9+(aid5 yugvbn+g the test charge?

  Two point charges ea,em f/q-yqh4cgt zc27op*)l kch have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field atce o*k7 yl-qz t2/c,mq4)fg hp a point midway between the two charges?

  A 5.0-mC charge is placlpjui, qpk985c962 f(0eoi x cz,kgjued at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the el5up9cx(jf q p8 ,kiuo iz,6c2ge0l9 kjectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 ml6 qb q(0tb; almb7(w b/lbru*C charge is placed at the 50 cm mark. At what point on a line joininbam ul 0l bqb;(7lb b*(/r6wtqg the two charges is the electric field zero?

  Two point charges of +3.0 mCx. jsgrgm et k9kb pz.(83z+e/ and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric fi +tmjz /e9k g8sxz (3g.b.ekpreld at the point midway between them?

  Three 3.0 mC charges are at the thre*rs hn ()4x,0hwxodb oc or*ixa5h)4we corners 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 cen,hh)sr wh**c0 rx)4 xwonbox( a4iod5ter of the square.

  Consider a square which is 1.0 m onsqblc; 0 lwrr cd.)a+) 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). ).qs;+cl b0rc lard)wWhat 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 is pla 5/v k6k :tzvsfos4b8nced in a uniform electric fiev4sf tk /nbz:v 86o5ksld. What is the magnitude of this electric field?

  A particle with a charge m7zf o:ztw -7kof 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 g is placed in an eleuxwvj 4:s14ann y(n)32fk w4sqt*yeh ctric field of 6000 N/C pointing downward. Whatsjh4ta)xn4w3k1: 4 f n(s2y qvnu* wye charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of - ec+/ee db9f058gbrqj 2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and directionc e 0/+d jfbq8r5geb9e of the electric field?

  A metal sphere of radius 10 cm carries a ch(c( qsye e196 hk/v* xliji; rd1uyac5arge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from theisaq yyk1 ij1vl/c x(; ec5*(9rh 6ued sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge o0 3ea;hmk/oi)djs v2 wf 3.0 mC. What is the electric field 6.0 cm from the cen s30;m)k2vh od/iaej wter of the sphere?