State the law of conservation of elecniz5i-i)h(hp2 c e;eyld)2mf tric charge.

  Is it possible for two negiz6rzak/am hi 4 y6a s11g*cb0ative charges to attract each other?

  Is it possible for a gvl;)af m q/7gpositive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. D ;w9; od a8j,t7-wfm9yeqxvqkuring the process the glass rod acquirej9v,9ot- ;yqk; ed mqaxw7fw8s a positive charge and the silk

  A proton carries a

  The model of the atom shows ua lptl 5j2q(:4fxs8zx00ogk a

  A neutral atom alway b58rq wk*1vkhh1a pf;s has

  An atom has more ele5i(lyojpt2)aere7vjuqi, *:ctrons than protons. The atom is

  Materials in which th+ jmbv7dh5, vv5bma (se electrons are bound very tightly to the nuclei are referred tov sa b+mmb(75dv5jv, h as

  Materials in which the electrons are bon )pw0 w/tre2 4rynyfy 7.q7dnund very loosely to the nuclei and can move about freely within the material are refer ndn0y)7 fwynq4r2. /y7ewrptred to as

  A negatively charged rod is brought near one end of abut 8g/z/m- rnn uncharged metal bar. The end of the metal bar farthest from the charged rod will/-znrgu m8t/b be charged

  Sphere A carries a net positive charge, and sphere hnegt3 8p32ryB is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grout28r p3e3 ynghnded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posidc+ p11n,:42r -ex p pd nfvgwn-hwvr5tively?

  An originally neutral electroscope is briefly touched wito5rwm7h yad olv x/*+.h a positively charged gladhm /7alx5 oo*. rvw+yss rod. The electroscope

  An originally neutral electroscope is grounded briefly while zfhni 9 u2:t,,l7cvc-trr9qga positively charged glass rod is held near it. After the glass rod is removed, :q,ltcu rzn7g trc 9fi,9h2v-the electroscope

  A positive object touches a neutral electroscope, and the leavem lii 2gh kk6ry52n 7jnmh2f l-c+84cyr)d0zj s separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the7rcnk ny y- l0 l)hzmmkcd4higr5+6j i28f22j leaves?

  A large negatively charged object is placed om r7xe5gkq/.uc/md1fn 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 badcq/f.k5mr / m1egx7ull touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constavm m)nsd;flo;+) e-b+sjw(v r nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lvtd5:oqjk fz807qr1 m arger in magnit q f81 k0djqv5zo7:rtmude than the second charge.

  Sphere A carries a net charge and sph/ .ofln*/a4 /d q/ g:zlrwycjpere B is neutral. They are placed near each other on an insulated table. Which statement best w4//:drzfq gpa*cn.l/oy /lj describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the c / y xyr9hsha5.c,qay9harges on both objects are doubled with no change in s/9yas yah9,c xy5.qhreparation, the force between them

  Two charges are separated by a distance d and exert mutual attractive fo4cr;ghqqn6c id,15 jlrces of F on each other. If the ch; lnqcq 4,cg 6rh15dijarges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a forc7tj4zt9x s:1u(ljj o ge 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 7(xsjjtz94 1tluj og: force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happens tfyrq+rcizz zg8s0w:gi g 62 -1r*q0uvo the magnitude of the force on the p r yf2 6q* 8g0zzgr1u:g w-zsi+cvir0qroton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance8nvt5ki4qi pp . xp/mma8yu 3: of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron ism 4 ii8na:mkt.puxy/v pp38q5 placed next to the proton?

  An electron and a proton are separated by a distance of a4lf6k;hmz- k0k:lq- qmp1da-nj ) n u1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer ml 1a-a;):k-mhkqn 4unk6 dl-qz jfp 0to the proton?

  A point charge of +Q is placed at the center of a sqr 2gj*gpznyc53 3b( vouare. 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. What is the magnitude of the net electrostatic force acting on tj5 g3* o bp2zcv(gy3rnhe positive charge at the center of the square?

  A point charge of +Q is p*yepbwwxdp/zi 4c 9(7laced at the 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 acxw4 pbw7pic9 dz (y/e*ts 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 vectou4x 9jmyxc+n8r5l 1k dr?

  At twice the distance from a point charge, 2-6ktcywfe31 7uhmvg f:v qy)the strength of the electric field

  Is it possible to have a zero electric field value betweeg)1p 0.bq 7 xo7ofolr-owns2mn a negative and positive charge along the line joiningsr7poq2.o -l1gn bow 0fx7o)m the two charges?

  Is it possible to have a zero electric field value between ti4p4i6ebfsa ;1 ri p,ruzc1z1wo positive charges along the line joining the c s,uferii1b 46 zp1zai;4r1ptwo charges?

  Electric field lines near psit6335p rs*x9uzkc c /yh3oto,m4p nsbx ive point charges

  The electric field sh8at o/g1 1 t+,iodwipdown

  Can electric field lines intersect in free spz3jv et9v, b3oace?

  A solid block of metal in electrostatic equilibrium is placed in a unif)i402xcgu9*u nersv porm electric field. Gives0nei9)gpvc*u ru2 4x a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of3ux n cvcol+fp 8k 3qso8l;7+k equal diameters are each given the same charge, the electric field (E) midway between the 8o3pk7lk+vx8cfu nl3;sqoc+ center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unz*4iw vgr:4vb iform electric field is directed straight upward. What can be said concerning the charwirv 4 4:bzgv*ge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chtknmo3jsdjz5 :9ae uw 1 b);) ,yb9ngvarge

  A positive point charge wy8gd3, unn 7yfidgb9 uf*y+7 is enclosed in a hollow metallic sphere that is grounded. As compared to the , nnw y*ud8udyfiby+9g 37f7 gcase without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of co.*wu4l/gka: 5xig, tm2rq niqnductors in static equilibrium.

State Gauss's law.

  The charge carried by nsw+8;nuwfybc8 2 j (yone 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 mbqpdgk; / 54(yrf/x,8knisxlC. How many more protons than electrons does this dxk; yf48qn/ il(k 5rgbp /,xspiece of plastic have?

  What is the charge on 1 kg of p5m2m( tn fqkvw( wc:z;rotons?

  An atomic nucleus has d sih 3b59i)iha 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 v8iaqhm0pr, gcuo 0 0;5fa qxu/alues of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force between the8 5gfma a00qhxuro0p,c/qi ;um?

  A 1.0-C charge is 15 m from a see s3vtoggo(./cond charge, and the force between them is 1.0 N. What is the magnitud 3g.gs/ovto (ee of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N, ksl 8n6vi6hv:;)ajgz 5s beu. How far apart are they?

  The force between a rigch/ukb0z e xu8*63$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially z/p8q 42y)xt9qk-v jfz, j5z ml(dyo o2.0 cm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is tfj,)l ot 2xqzv mq z(4y9j5 zp8y-d/okhe electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first ch*a zmy ; wvyfq*jqgf4zdqu68;soe, *w7r5a6rarge is at the origin, the second to the right at x = 50 cm, and the third is at the a7m;6qauj* 8fgwzve4;rzfdos** 5qrwyq , 6y100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on .eddj5/f h*bcthe 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 dje*b chf d.d/5irection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following0up u6 vv;i *91dwimyw positions: Q1 = 2.00 mC at x = 1.00 m; Q*imv iy9vd6uw0wp1u ;2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the centf+m/q*ocy1 (+ltbz4n zwzf -9ch( wzler 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 2.0z+f+ 9wz-1 qh/l zfw mczb(ytno4*l(c 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,6:h ts-fh( kdjtbcj -sn/*rq7 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net for* b7d6h-nr-s:(s qfctk hj/jtce 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 =j n4ig eny bdb0,y e.8cm+mu(- 5.0 nC is at (0, 0). What is tbiy .yn(eb -dnmgje4cu0m8 +,he direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the verticesc ap2 zz h2e:bcpbj(-j av::3o of an equilateral trian2z:hzc j:pe(:2 -ao cavb3j pbgle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges 6*i 6w;/fr zv3lq0lwnvs rl +tc r6a/qof +Q and +4Q, which are separated by 3.0 m. At what poin66 slalt3*/nw c v+q0lf vr6qz/r; wirt, on 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 ory4+(k78x )x :vlsf9jiy oanudigin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed8 on4ly ivxjk7yxd) f u:s9(a+ so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where canx8:13rzcri u)g;lgja a third positive charge +q be placed so that the force on it ilj1x gi:acrg rz38 u;)s zero?

  A copper penny has a mass of 3.0 g. m7y,i;-wqeyg m6ge4 w 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*n2 nz ozpfu n*sa69m3 fixed proton some distance above it. Ho*9fa 6znmnsp23 u n*ozw far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by +oaemz9e24 sg nonconducting threads which are 30 cm long. Both are given is 4eaeg9 +mo2zdentical 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 magnitude of 5*ydqeug9 x 1fthe electric field at a distxeg1f95uy *d qance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a disthe4 u9f8 ce4ntp5z :8)3zh,xapgx kaqance of 1.50 m from a 50.0-nC cha fxc e8az34nqz 8guthpxh:5ke9p 4)a, rge?

  A 5.0-C charge is 10 m from a small test ybdo5 1 (ur8iecharge. What is the magnitude of the electric field at the lud15i(y b oe8rocation of the test charge?

  A 5.0-C charge is 10 m fr l)omntns)(q50u t xuat,7 5xeom a small test charge. What is the direction of the electnt,e55)ls(xmutoxu)n 0 7q atric field?

  A 5.0-C charge is 10 m from a small tesa v)g- 0spsy1jkzkv4c6n7ey -t charge. What is the magnitude of the fos y1vc) n-4-7vzyk pjsgk0ea6rce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 2cwxnk7dxe2hpxnr)7 g5 4 5tqt.s-ri C and are separated by a distance of 4.0 m. What is the electric field at a poinx-h nqp in4k525wgr cxted2 s. x7r)t7t midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a by1*ab1(ij )jx*p8ksjroz+ z -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cmp*b*(ojazxj8 1+zkb1s y)j ir mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC charcvdor7aud-1 + ge is placed at the 50 cm mark. At what point on a line joining the two charges is the adcvu- 1o+d7r electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m.oz, zivzjl7y k 5s+4t 5g6cyf; What is the magnitude of the electric field at the point zjy5ctiy4zf7s+6,kg; v oz l5midway between them?

  Three 3.0 mC charges are at them w) 0.dug/dbh three 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 centd h/).bdwumg0er of the square.

  Consider a square which is 1.0 m on a side. Charges are placede8dit :l 2mhga(9p.xhk9c*e r 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 ttc*xrdhak p egl99i8:h.2em(he square's center?

  A force of 10 N acts on a13dzu2 lgx0 mh charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric0dmz2xlg hu1 3 field?

  A particle with a charge of 4.0 mC has a mazxx h2 5thad3o)7dj2o ss 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..r7( n v0 *rvvi(iztls120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for ir(ivli(0st v .7r z*nvt to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The balcqo 8 qn qj )mhuaptw:;2(-vf qq6()dgl is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field2v)o: (c(d-g htq 6jqa; )8qnm upfqqw?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. Wh(:kb:r t1+c s ag(qyaeat is the magnitude of the electric field 5.0 cm from the sphere's:cakb a1q y+r(tesg(: surface?

  A metal sphere of radius 2.0 cm carrimu6 hc;u .h;572*zdp qrttpve cyg:;d2 wuz)yes a charge of 3.0 mC. What is the electric fieldc)rcm2;hhp*uz 2z6gdt eq5wu;up d:vy 7;ty. 6.0 cm from the center of the sphere?