State the law of conservation of electric chargmiou. *y1)nskez6a4z e.

  Is it possible for two negative chargebokwl;m-qv7+cla 2u 37 s/n0 p pulpi3s to attract each other?

  Is it possible for a positive and a negative charge to attract each otwpdwpa3r( / 52a/(b qftlb* irher?

  A glass rod is rubbed with a piece of silk. During the process thel6;afh k1pwk/ glass rod acquiresafp;6 /h1kkw l a positive charge and the silk

  A proton carries a

  The model of the atocqf q28cj9bts(n mjjb6h2vk nrw p+ s-i-.g1 3m shows a

  A neutral atom always ;iqjes u3l tuo05wg-8 has

  An atom has more electrons th /5e 89dmoq2nr(qyoiy an protons. The atom is

  Materials in which the electrons arh:vq+qqh-+z. vzi) qirg .5 rw5i:uum e bound very tightly to the nuclei are referr mq: qq)huhivz5 +g5uv -+z.wr:i.rqied to as

  Materials in which the elec1ipq8ws t0o.n6g+ner mz)k8 a-he,h ktrons are bound very loosely to the nuclei and can move about freely within theier0ne+z) a1n, gt.ohqs 8k h8mk- 6pw material are referred to as

  A negatively charged rod is brought near oyf*ks9nm l3u :i10f tyne end of an uncharged metal bar. The end of the metal bar yfk0ym1nis f t*9u3:lfarthest from the charged rod will be charged

  Sphere A carries a netk 8bmer n/j4+t positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire b84knr+ tej/mthat is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope -c2 updp.3rfe positively?

  An originally neutral electroscope is briefly touched w4tzhwg *wabmk -s1y1 8ith a positively charged glass ro*1m8-t1kb azgwys4hwd. The electroscope

  An originally neutral electroscope is grounded briefly while a positively cchb 6xk6v 00gvpt00xgxj di3 4harged glass rod is held near it. After the glbd0 tixh 00kvx p 4gv6j0cx3g6ass rod is removed, the electroscope

  A positive object touches a neutral electro ftlldt10(2oq y; dieu w.ev7+scope, and the leaves separate. Then a negative object is brought near the electroscope, but qet 2ui (y1+lte0. dolw7v;dfdoes not touch it. What happens to the leaves?

  A large negatively charged objecdtpe5ll -xv/1 t is placed on an insulated table. A neutral metallic ball rolls straight tot5xl -pdv1l e/ward 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 object. What is the final charge on each ball?

  Charge is

  What are the units of thefr1sioz1.wumdr7gr )pg): p9 m( ,vkb Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance dqrgw 1himq) +ywxk 8 +pl:b)w8. The first charge is larger in magni8xhib8q) :ry q+w1mplg+w k )wtude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are pla4av py)spoq: ly0bj. v 98yj5rced near each other on an insulated table. Which st5jjvpvy9)y. l4b syoarp 8q:0atement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges on :9i s 8n7s,p8edjrwoq(q e-s:lhrr, pboth objects are doubled with no change in separation, the forpjr78rproe s nsq:qs: e,dh8( 9i-wl, ce between them

  Two charges are separated by a distance d and exert mutual a3qplu-p7k9u g m3 c0sv( pnpx1ttractive forces of F on each other. If the charges are separated by a distance of d/3, what ar1sx0v(pnk l9c upmpug 33p 7q-e the new mutual forces?

  Two charged objects attract each other with a force F. nz-8b;8w:jzobr iku l3-dr z0What happens to the force between them if one charge is doubled, thez:0rnkz u o-bwb;8z3lr- 8dji 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 proton are separa p0)k6o k,tilfk.w*gdted by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first electronw, d.kkfg) t6p k*li0o?

  An electron and a proton are separated by a distance of 1.0 m. What happens to ;jing1g /p rfr7qi2p)the magnitude of the force on the first electro) giir/qrf27pg1; pnjn if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. w1:k-yb ek-n qic ;s / fv,fqib20n6rg What happens to the size of the force on the proton if the electron is moved 0.50 m closer to t2c6wqif/,y qve: s- if;rbbnk1kg n-0he proton?

  A point charge of +Q is placed at the center of a squyq.j0*q, 0 jn ezq8joware. 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 positi*joz8 nw yq jqe0.qj,0ve 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 cen5j 5tt 9fjbi)rgy6n0 rtroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle6rjibt 9frj0 t 5ng5)y'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 not a vect iik:g lm:0/fcor?

  At twice the distance from a point charge, the strength of the e82kuzkx s 9vz3lectric field

  Is it possible to have a zero electric field value between a n+rz var)m507d-yvav0m 9f nqmegative and positive charge along the line joining the two dm v)v9-nf v0zarr0maq 57+mycharges?

  Is it possible to have;iy35pg g grjt(zloy1oy8*bqnm +pg-- v0 z;y a zero electric field value between two positive charges along the lin1*zpoy8 g0jy; q+vg zotg; ibl(rygn 5y-3p-me joining the two charges?

  Electric field lines near psitivewbe3 oca.vo+7br7.ru point charges

  The electric field sqa-kr/wz /axpsg 0y. ;hown

  Can electric field lov3j;,yzw9f4peemy. (dcoe1 +x zt ;k4s ktr+ines intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a un j+x 7s k.mqww-zwx0)hbis)j. iform electric field. Give a statement concerning the electric field in tzbsx+j0h k-m).)w 7xswiq. jwhe block's interior.

  If a solid metal sphere and a hollow metal sphere of aw. *l ,lks+cnbz* 2q1i; pcbooe/yn-equal diameters are each given the same charge, the electric field (E os2b+cyp e*cli.awo/q bnk1 *z-nl ,;) midway between the center and the surface is

  A cubic block of aluminum rests 9 b:qcy+anv4ug oauf2( a bib-.p4e9von a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surfacefac-ip.u9aebb :bq(vn +v4u2 ay4o9g?

  If a conductor is in elec yj+x(i/y4:q hvk k-cjtrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grxk)nu:4br:tq)7 thyh8fz i 0dounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere )) i:t0u:kx48rfyhdtbz 7 qhnhas

State three properties o0,fv3l /u2sm y/czeqonz)g . ef conductors in static equilibrium.

State Gauss's law.

  The charge carried by one eleczbf1zg2a6wu:sv z1 . wtron 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 mor(5kvvh h5bjlezc1)gi:o)to - e protons than electrons dov:igc1 b(ohz-v5 jt )ok)leh5es this piece of plastic have?

  What is the charge on 1 kph299 a7 ucgz-tdg.ld4 bv.(kb(s hj tg of protons?

  An atomic nucleus has a chard6n 2m hg) 8alfz5cov:ge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5mld f+:jb mdw+m/ -lwxvk./.x xkd6g) cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betweex6.kbm+f)/w /+gmm wldjxx:.-dkl vdn them?

  A 1.0-C charge is 15 m from a second charhsx h+6jh k2zh)6qd z5ge, and the force between them is 1.0 N. What is the magn x66hzkjz5)hq+ shh 2ditude of the second charge?

  Two 1.0-C charges have 8sb a-fnay ;.)ctf5imd.o0rw5-g guj a force between them of 1.0 N. How far apart are they?

  The force between a 9 ed5 s*p9elm mhnwmd,-gm*d,$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experihlb-2v thd 6b5ence a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the -b65vbhdtl2 helectric force between them?

  Three identical point charges of 2.0 mCzbrqhm,x51z)j ; .sq w are placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mxmq. r ; wh,z1bz5jqs)ark. 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 +2.0 mkwoccw:05xv:p q34 knC 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 f: woqkc5:4c0x pw vkn3orce which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.0cchptc7ng) w 7-ju9u6u8rz.3q hdp r* 0 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 of the force on the 3.th d*pu)zqwrp j9n-8 c3 7rc6g 7uuc.h00-mC charge?

  A point charge of +Q is placed at the center of a sq+bhuh 4y0 cr8ka,5ke luare, and a second point charge of -Q is placed at the upper-left0ec,ykalu4 hh 8+bkr 5 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 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 n 0wq dv21a qyxb +jjp*d1avrl+cqe,69C is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the mag6 j q11xea2* d+yqd0wc+pv a,bljqvr9nitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC h;se2q tuh,8 kqt w+n m0/0dn/n; vauhis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Wt/h2qnu; hn0 u,aw/ktsv8 em 0d ;hnq+hat is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 39t9p9brmd*id3g,wt;ga fd- t ug4df -.0 mC are placed at the vertices of an equilateral triangle which measures 30 cmtadg*; gpg9rib--fdwmu 39t9dtfd , 4 on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At whatz5 5dewvew/7 znu4 6pp point, on a line between the two charges, would/w56ve7z 4 wz p5nedup 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 oig,n xzbkhj((91a e63 bj)nyorigin and a +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 jhxk iy o9e(j nab1,6( 3zgnb)zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where cap9/ cruw /.doiayjn/4n a third positive char/ y/c nw au/or.ipd9j4ge +q be placed so that the force on it is zero?

  A copper penny has a ma(e ji.a)h*pr n/hs;cdss 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 :uro:5jvb 1wlup against the force of gravity by the attraction of a fixed protoo1wjv:5 lru:b n some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres arkjh*.j+ x3yp 3ikd0eyso; +lhe hung from a common point by nonconducting threads which are 30 cm long. Both are given identical chargekse. * jy3 3o+;yhkpj +i0hlxds, 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 oxozfvp5zxd5c* 6llt j 77d:0:.l aox lf the electric field at a distancdafxzx dcj t.v5lo5*7l z: ox:60p7lle of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a dis /s-vld veq s *dkga7k;tx/9u*clwy(* tance of 1.50 m from a *uxdsal/tvd( e 7* k9l-;gwy/qvs*kc 50.0-nC charge?

  A 5.0-C charge is 10 m from a small te nl7) 1.ubadk4nt/yc hst charge. What is the magnitude of the electric field at the location of the te4tbanu.lnh d7 k1)/ cyst charge?

  A 5.0-C charge is 10 m from a small twd2r hjd od;yv+78gx 7qqoe62est charge. What is the direction of the electric f2 vdw6+2or;xd d7hgqqo7yj 8eield?

  A 5.0-C charge is 10 mb5cck.2 xlr5iklcd9ik 9n59+jq qzk 6 from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the tescizk j d+n5q5lb ixkcc92k. lq6kr959t charge?

  Two point charges each have a value of 3.0 zeqtcwrkq,ger,hb+ 37z --z 2pz7jx: C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the -zq3hrxrk7jp wzt ,7q 2+ebgcze,z :-two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter s6n75oypm5 vl: w/oozpc:. iwutick and a -4.0 mC charge is placed at the 50 cm maopw6:./mnyulp7 :z5wv oo ci5rk. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a metg:lh2e +4fcp2 dlwe:ker stick and a -4.0 mC charge is placed aehg 2:4+2c epw:df lklt the 50 cm 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 = 0 and x = 0.20 m.7f ur+eyswo9s*m1fbcthn: xx -/ o6f: What is the magnitude of the electric fi -y f6m+tes7wn*bxf u1 x: 9cf/:roosheld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of si9, lfq+iqm/ *n( qwtxkde 0.50 m. The last ckqxmn*t lq/+w9 ,i f(qorner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charge2 nme0gz5bo /t;3dpy ds 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 2nmygo3 de 0zdp5tb/;at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in1wh6 q)6znm.w wofcg2 a uniform electric field. What is the magnitude of this electri o.q1w wg2fzm6)c6wnhc field?

  A particle with a charge of 4.0 mC haudp o v3snfm-(g)k2w0 s 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 6c- yhh*j1 ng1r000 N/C pointing downward. Whyc-hg*1 1rnjh at charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a cha w; ooc5x(e an6qs2a o9gzipv+25*ls grge of -2.00 nC. The ball is placed inside a uniform electriws *+(cs e i2gq65on2 l9pxazoa;5vgoc field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magnitv ck91g7z ptbj 7fzu17ude of the elkf tjg 7z191u7pvczb 7ectric field 5.0 cm from the sphere's surface?

  A metal sphere of radiusoa e2o ;o0tyia 0es7dpq ihm0 dwq4705 2.0 cm carries a charge of 3.0 mC. What is the electric t04ai2 50hymq7;d wea7sop0i0od qoe field 6.0 cm from the center of the sphere?