State the law of conservation of z.mo. v z+7jzm rot6o9electric charge.

  Is it possible for two negax,mhydl :zu2 y w5+4g9m+w mq)0z4u wsh(m cvrtive charges to attract each other?

  Is it possible for a positive and a negative charge f+410adtv6 nubj; y74l ksd1 y3wxn wnto attract each other?

  A glass rod is rubbed with a piece1 oav(u7h2htyu 8nr;m of silk. During the process the glass rod acquires a positive 1hu u vahn7o2y r(8t;mcharge and the silk

  A proton carries a

  The model of the atom shows jm/e4i fibzch(j+ r6-g ez3p 3a

  A neutral atom always y m:t -9enuwrlww5c17has

  An atom has more electrons than*,**) k10lmjma qg ub6h)uslrvzq d) q protons. The atom is

  Materials in which the electrons are bounofm vq;8-rhkpi * 3uy:bfq,o7d very tightly to the nuclei are referred to as;k8-v qf:*m3hrip yoqo7ub,f

  Materials in which the electrons are bound very 3 e2hs yc/5dcnloosely to the nuclei and can move about freely within the material 2/ ycsdh5nc 3eare referred to as

  A negatively charged rod is brought near one htu* ivnnj1-6bz7 g+hend of an uncharged metal bar. The end of the metal 6iun-h1n +hj*tgb vz7bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are place n0svwwv(1h:, ge tlh9d near each other on an insulated table. Sphere B is briefly touched with a wire that s 0:te9 gnhl1 hwvwv(,is grounded. Which statement is correct?

  How can a negatively charged rod charge an electr00 gzincx19ahoscope positively?

  An originally neutral electroscope is briefly touched with a po06*3oj35jts e u bu/yioo4vjmk ee) x8sitively charged glass rod. The electe/bjx)s3 i3vj* m 045otjueeyk u6o 8oroscope

  An originally neutral electroscope is grounded briefly while a positively 1k9ir i(u cp(w5jbab2 charged glass r1r(ck9 b52iw u(jabpiod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leavn nd.+w36szz xsn6q 5 i)zkri2es separate. Then a negative object is brs66 i2nr n+q.5 ziszn3)xkdz wought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutrw1wtawk(( z;q 1tov, gal 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 object. What is the f ,;qwwa(vw (1tozt1 kginal charge on each ball?

  Charge is

  What are the units of the Coulomb cob/qkev2 b st 8-cxz6e/7:g;h bvfcc.n nstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger imkp36/4b cij .e.3 mbacmzy-t6mjcy33km4bt-ec /zb. ia. pm n magnitude than the second charge.

  Sphere A carries a net charge and sphere B is n) j.a+bwkpq0rn1 /ika* bq dy5yj1zs3eutral. They are placed near each other on an insulated table. Which statement best describizk j1jb.5 d3y/bq nqkwr10)*ap+asy es the electrostatic force between them?

  Two charged objects attract each other with a certain force. I c9sv e9dg(;ktf5;8nb drpz6 of the charges on both objects are doubled with no change in separation, the force between thembd8;t(5 vnze9dpfg 6os crk;9

  Two charges are separaloi pvh16:cz- ted by a distance d and exert mutual attractive forces of F on each other. If the charges are separatei:hc 6p ovzl1-d by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with -p,nd;u5qkrcc 2o7u ua force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between thop; d2cuu c7 u5knr-,qeir centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are sqc3 mhra9f 0-separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second elc03s q-h9famrectron is placed next to the first electron?

  An electron and a proton are separated by a distance of7xc smw y,q t,5),jbdt 1.0 m. What happens to the magnitude of the force on the first electron ifw,by7ctx)5,t j, dsmq a second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What + kiml0 :on.(a *lqzhhhappens to the size of the0qhl*.: zi ln+oak(hm force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is plavf0h l0 rftwtf20-iz +v y7:erced 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 positiv2fhrv:yfwe ti -07+rltf0z0ve 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 tr elsl22 exr+0fiangle. 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 magnitslefe2 +r x2l0ude 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 followi8glpn99b,cr s ng is not a vector?

  At twice the distance from /ei) hlx64 snza point charge, the strength of the electric field

  Is it possible to have a zero electric field value betwe-t7tmf6 d6 jbren a negative and positive charge along the line joining the two cb r6t-t7j f6mdharges?

  Is it possible to have a zero evs.,p(;x- n s ):ejfryyosq +ilectric field value between two positive charges along the line joining s(ys+.viro ;y:fn e,pj x)-sqthe two charges?

  Electric field lines near psitive )r+1az ;xkia)l6x jtvjq m l(3point charges

  The electric field shou u ;ghs(/3uh, 9dahgcwn

  Can electric field liwr1gu*y w3+/ 8ilm rpo7y)iwines intersect in free space?

  A solid block of metal u r +yx;felje:s3u(vjqp:)(o in electrostatic equilibrium is placed in a uniform electric field. Give a statement concer) ;f r qle(syj:p3jxv+o(ueu :ning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters a,k(zw.3s 9zumcgore8s6g(u ore each given the same charge, the electric field (Es oz((rk8 3 eg9m.6ocz,uusgw) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in aatpr 9ou9 -g.h region where a uniform electric field is directed straight upward. What can be said concerning theoht9 r9-apgu . charge on the block's top surface?

  If a conductor is in electrostati5; c id x9fzmxnmefyf;f;) )4uc equilibrium near an electric charge

  A positive point charge is enclosed in 4rggdvvgz 0:x11g 68gu y3gz*ze zop+a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, thxgzg1vev1z+ z80pz 4g goy:u*g3r6 dge electric field at a point directly above the hollow sphere has

State three properties of conductors in statis/rm91qg fo;0,tvqmu c equilibrium.

State Gauss's law.

  The charge carried by one electron i g 64 27a*aap43j/ugko ztwmeus $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge+ 1kl2 bp(p x2.cjgaxk of +2.00 mC. How many more protons than electrons doesc+kx2( jg2xp1 pak.lb this piece of plastic have?

  What is the charge on 1 kg of p(hg9w (hv6s dyweraol +32 gqt y5cn3)rotons?

  An atomic nucleus has a char wd b+to5 :s(nl0oo m/c svcv0.f0v;gwge 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 m b/ c+j:i0 s()bshaxyvalues of 2.0 and -4.0 mC, respectively. What is the magnitude of t abj)hyc+ (m: ixbss/0he electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 -coi f)j:,ed3gcxc -xpdhf57 N. What is the magnitude of thej cd7 - xcxo3p5if) cfg-,ehd: second charge?

  Two 1.0-C charges havesetu vf5. .y(r a force between them of 1.0 N. How far apart are they?

  The force between a w* 6eh7zikx;h$30 \; mC$ 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 f7t9;e3d3v q l/x.veg 4hlzwo rorce. If they are moved to a new separat;3g.l93e/v7xelhodt w v q4 zrion 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 first chlganr r/:g,w:arge is at the origin, the second to the riwlang::, r/ rgght 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 placed on the x-axis. A chayjs.b)a :ic 5 l2;6snwjf7um qrge 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 for w5msj6 n:f)b. y qu;aj2l7icsce which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 nrwb vrmaf5 )o 3suygx2z) )/qz8-m7y 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 thv7sy wz 5 m)3u2zxmr-8y/ n )rg)qfbaoe force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a secondwiwxn(:nw;v)fh . jo3l) l;fj 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. Wh w lnxfo3lnwf.i)jjw;:v;)h(at 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 niw3( jgux w 35gq*9jym); Q3 = 5.0 nC is at (0, 0). What is the ma3(u9wg y5jniq 3gj *xwgnitude 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 ak0pfh 8vv7imjg4;a (ct (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of themjpv(ck4;ia ghvf70 8 net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at tl/gadn3a -ip/he vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one o3adl p-g/an i/f the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At(a5cj joni*olq t(50;ak rlr; what point, on a line between the two char arn0;(k ( ojqoilr5cl ;*t5ajges, 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 akj5 qn(s) c9pk +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 is9 sp)(knjc qk5 zero?

  Charge +2q is placed at the origi2m5nwz5xie39 j:xwn un and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it iwixnw59 u3j2enx5m:zs zero?

  A copper penny has a mass of 3.0 g. A to (l 8vipzflk.c4)tcz)((viy ntal 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 7 /ltg)e:yfxm6(eu gxa fixed proton some distan 6:t7 gxul fx/egy(e)mce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonc(wvjkcp/f* m+8vx q8f onducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between th x*v/88qw m (pvjk+cffe threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of o6k*dg ipc65 ,-knbhp+40e. What is the magnitude of the electric field6b-gpk d*n6h 5ocki p, at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric tqqyuzdv;-*z2ige7 :2zy .ds field at a distance of 1.50 m frot yqs dz*q-y:ge. zvud22i7 ;zm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the mag-9fsa 5 st6j i5z;fvainitude of the electric field at the location a6i; iaz595 sts-fvfjof the test charge?

  A 5.0-C charge is 10 m from de4/s.ssk 0w ta small test charge. What is the direction of the electrictk.ds0 /s4 swe field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the x wd h1yf2kb/ac-iu 3er0dm jl t -,7gg7zz43iforce experienced by a 1.0 nC charge placed at the location of the tga-z7iw ikl yrbuf702me-1/h xd3tj34z d cg ,est charge?

  Two point charges each have a value of 3.0 C and 1i bb(4q/z vc u4gnvx(are separated by a distance of 4.0 m. Wha /biucb gn41vv4 zx((qt is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick ani5mf+n/r,6 krac/i b tq,o1qi d a -4.0 mC charge is placed at the 50 cm mark./,o crqibi q5n 6/rf,1 +makit What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placep8b.7yl3+v*th .bs1 uuspvbid at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric fie iypl h*u3s.+vt.1bbb 7v 8uspld zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 anbn34ta p: h8ubd x = 0.20 m. What is the magnitude of the electric field at the point midway betweebbp 48 ua:n3htn them?

  Three 3.0 mC charges are at te ea64p.d xf7ef-fh;m he 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 c-;ehadpfmf fe4ex 7. 6enter of the square.

  Consider a square which is 1.0 m on a sideo gn .u7*lv2auod2zlr7 qswh yh- g9.-. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1--hhdzlvuqgnlgou *7a29ro.s y. w72, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What 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 placed in a uniformo dr-edm03 8 mr)(n(f hih77x0ekmzay electric field. What is the magnitude7 d)my m 3o(hafd7zmx-ne8ehri(0 0rk of this electric field?

  A particle with a charge of 4.0 mC has a massf7+6-lhomx cg 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 0.120mjq a f7mi b2b7s;g1c5 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspbc27b5fmiqj; m asg1 7ended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed3q9ezpzeslly n,v qz8w/5tl 4 c4t8 (q inside a uniform electritt4vez qq9q/w y(e85zl,4ns z3clpl8 c 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 mee7 y;1pth7upvt* y3s/va0 ypC. What is the magnitude of the electric field 5.0 cm from the sphere's ppp uy37yta h0/vv7sty1e ;*esurface?

  A metal sphere of radius 2.0 cm carries a co*ni:x 745lrus3k vu0z5q glg ,6dyb pharge of 3.0 mC. What is the electric field 6.0 cm from the center of5gzd7:4skvqyl06oubrg5*x3 l , ip n u the sphere?