State the law of conservation of el*nt8tjr /0ca sectric charge.

  Is it possible for two x fe b4c(sqo,9negative charges to attract each other?

  Is it possible for a positive and a negative charge to attract each other?p yg z j3pp7.:i:ditl0e2svd0

  A glass rod is rubbed with a piece of silk. During the process the g pq6he rk0picm6bj/*;lass rod acquires a positive chargr/iche * kmjp q;66b0pe and the silk

  A proton carries a

  The model of the atom shows aiuyf32.8vxo,y.q(- f en 5(h edjasyd

  A neutral atom always hvt urkz rpc a. 7. fxf6+owb:;bo6wd,/as

  An atom has more electrons zjh9v:gxp/ zad+9ub3than protons. The atom is

  Materials in which the electrons are bound bo+ kkv4s nya;g*03dsvery tightly to the nuclei are referred dva* 0sk; gk 3syb4n+oto as

  Materials in which the electrons are bound very loosely to the f nd6c2xkk9ouci. 9*k brm /)dnuclei and can move aboutdccf du6)i/nm 9.xk*o2bkr k9 freely within the material are referred to as

  A negatively charged rod is brought near one end of an unn)1q qm:qzs7aqab2 u 9charged metal bar. The end of the metal bar farthest from the ba1:z9n)2 u7q qqmqsacharged rod will be charged

  Sphere A carries a net posi*(kj q4n +jhyptive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is corrnph qyj +j*4(kect?

  How can a negatively charged rod charge an elx :gnt ,6fxrswjl lc:s-g*n .4ectroscope positively?

  An originally neutral electroscope is briefly touched with anp9 ,1weh9-xj ihptg - positively charged glass rgp9, nxj -p-t1 e9whihod. The electroscope

  An originally neutral electroscope is g/y bmo7y/pgm 6rounded briefly while a positively charged glass rod is held near7/m my o/gp6by it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leav.a.i6x:xqaqksed 9f 5es separate. Then a negative object is brought near the elect 9. xd:s5kq ea6f.axqiroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulat:m bi6 a9elb0hed 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 eml0 he9abi: b6ither ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Cou4gs 7fz d4-m.y ikgtjyecr4 ;ce7lt48lomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge i3xphp;kqx4 ,w9pk 5kw s larger in mq 9,p;kw53kp4p hwxkxagnitude than the second charge.

  Sphere A carries a net charge and sphere r 64qr8m9zyf aB is neutral. They are placed near each other on an inmz 9f4rqry86asulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain 9x+tb pyz2 s-uforce. If the charges on both objects are doubled with no cha2ux+b y-9s ztpnge in separation, the force between them

  Two charges are separated by a distance d and exert mutualq(1 gm..2s lm,.a ffd+sxekem attractive forces of F on each other. If the charg2.ma+x(sfdm1g e ef,.ls.qkmes are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a nlmh / kza55/eforce 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 ith5 mn5ae// kzls original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What happenset;r fy/ j;hy/;ewfzw9 9eoi+ to the magnitude of the force on the proton if a second electron is placed next to the firstoi;/y+jehf99r /ef w;;te ywz electron?

  An electron and a proton are sep 7f2it6;rzk 53+vledf dljfaj.kr6( marated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the proton?t6r26 zv 57jf d3flka.fed;i+j( km rl

  An electron and a proton are separated by a distance of 1.0 m. What happensc+ohpl 88u o.k to the size of the force on the proton if the electron. oh8cop8+l uk is moved 0.50 m closer to the proton?

  A point charge of +Q is placed a zi+ jw )qlo whyc2-abkl9 .7i9fyq8hog5w:9gt 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 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?b9:q7 yl.wo9y -z29hgwfjc)awg q i+hl8k5io

  A point charge of +Q is placed at the c ik;wr.qv ,i67qz7y4d ;dcj h of8g(ymentroid 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 the center charge due to a third charge of +Q placed at one of the other veriqmd rjyv 7g( dc76zf 4.y;oqh;iwk,8 tices?

  Which of the following ijzm.4-)mkkdbu n5ektuj0 4- 5u,itbz s not a vector?

  At twice the distance from a point charge, the strength of the e pi p2eb qb0vzdu .l(78hh.id4lectric field

  Is it possible to have a zero electric field value bi5uwxo4 x 9+w ag-rd(metween a negative and positive charge along the lindraou+54gm i- wx w9x(e joining the two charges?

  Is it possible to have a zero electric field value betw5c)gsh- ebj 7ueen two positive charges along the line joining the two chargeshusb7 c-)g5 je?

  Electric field lines near psitive point f ww+1a87homocharges

  The electric field shown ,*85ar2sk hqzgngjcs3pq n vqk5.3*r

  Can electric field lines intersect in free we bn-5y w59gzspace?

  A solid block of metal in electrostatic equilibrium iu pecnxs) :e7 mxj6d2qnb03;o up,ai -s placed in a uniform electric field. Give a statement concerning the electric field in ub eem6o)iqnu30,jnp sx;pd :-2 xac7the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are each ,aa d f9ehrgp, kdkmhae0q 6l*t q/(.+given the same charge, the electric field (E) midway qadh e/dthk6+p 0,lfk qrm ga e*9(,.abetween the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform tt80hxs0 me* belectric field is directed straight upward. What can b08xhe0t mstb*e said concerning the charge on the block's top surface?

  If a conductor is in toy 063dl h7o9xxf5(4wjp8n d d2l npdelectrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a holghx4 mvx0nzvnn3o .r9 .-h+rd low metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directlnvno. 94+ rr-0hx.xm3dnhv zgy above the hollow sphere has

State three properties of conductors in st7 iboz ochp,3 p0 gvt1xj )sqh5-ik.z*atic equilibrium.

State Gauss's law.

  The charge carried by one electron itmxc3-t. cnkio6;us)s $e = -1.6 \times 10^{-19} \; C$. 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;dp tkhb2fuz2r * 67ao mC. How many more protons than electrons does this piece of plastic hazaup kr 7fo; bd2h2*6tve?

  What is the charge on 1 kg of protons?al:z9gy s53c,pyg( uv

  An atomic nucleus has a chcw.( f/r betcy:i r7t0arge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separa2gijrsaxy64d *se w 1+ted by 1.5 cm, have charge values of 2.0 and -4.0 mC, respragd+*se1isjy 46x2 wectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the7w*q/o w ci8ue force between them is 1.0 N. What is the magnitude of the 8oiw *w7uec q/second charge?

  Two 1.0-C charges have a force between th :hw3n9 i:u cq4vwg4 kigt2*pih)bfu9 em of 1.0 N. How far apart are they?

  The force between a 7 j8sg2r.z ccm$30 \; mC$ 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 they art/:srbv zb: /z+qa yb9e moved to a new separation of 8.0 cyqr :9sa v/zbz+ :bbt/m, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on( t1)9 o(4 dazloyefxo 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 mark. What are the magnitude and direction of the electrostatic force which acts oxz1 9fo (at)lyodoe( 4n the charge at the origin?

  Three point charges are placed on the x-axis. A *u)b7dp zmjg smy *t) aau6fp6)8pt6i 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 tb8p u7ta6g)* m*f as6ytz)j)dpm iu6phe 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 loci*e, v)mkqr /cated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mCe/rk *m q,civ) 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 center of a squ tgd9(aj )p1tware, and a second point charge of -Q is placed at the upper-left corner. It is observed that awt(1gd) pt aj9n 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 nC is at (0, 0.10 m); Qo(.:dn jpv zc83 = 5.0 nC is at (0, 0). What is nvjo pd. (c8z:the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC inop swii ++m5;bv;d +gs at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC chargeop5 b;; vn+ wm+dgiis+?

  Three identical charges of 3.0 mC are placed at the vertices t;6o;xdq .srnja)g j046vgxwof an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force wh6wx 0v o6);jx qdn g4tasjg.r;ich acts on any one of the charges?

  Consider point charges of +uzf tzw6knq( -+3anc0 Q and +4Q, which are separated by 3.0 m. At what point, 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 woul(f6q+n 30n-zak ztwcud be zero?

  A +3.0-C charge is at the origin and a +9.0-C charg+5i ,pafhy lj-x5 xz+/ 83lnmbrlby5 pe is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it i,lb +a5+ nppzhlb-5xxrym583 /fjliy s zero?

  Charge +2q is placed at the origin and charge -q fk 85ah*zps(jtak .i 0is placed at x = 2a. Where can a third positive charge +q be placet ifk0 pa(j az.*s85khd so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total of :gj s9y iac:1q$4.0 \times 10^{12} \; electrons$ 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 of1ype)s10yks*x h ms20v xj+xf gravity by the attraction of a fixed proton some distanhfs1kv0* sx )2sy+ 1x0mxejpyce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting th: pgvc7 .8zmdqreads which are 30 cm .mvdcp:g87z qlong. 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 magnit-wdb9zqvnx :o1o a1eg g.c.-a ude of the electric field at a distance of 1.0 m frogo. ea-bovz. dg1n:9 -qwacx1m the nucleus?

  What are the magnitude and -68e2jc4az xot:6 ,rd)rloxgtn -qm c direction of the electric field at a distance of 1.50 m from a 50.0r6go24rd,m:--xnelacxc) t 6 oqt8j z -nC charge?

  A 5.0-C charge is 10 m from a small test,hcv+nx25an qs28j gh charge. What is the magnitude of the electric field at the location of tq+scj gxn 8h2,5 nv2ahhe test charge?

  A 5.0-C charge is 10 m 7wa(67pggg+nn4 xv juj4jj. mfrom a small test charge. What is the direction of the electric fug7n (6j4 mn.j+g w7 4pgjjxvaield?

  A 5.0-C charge is 10 m from fz4/alw68p) rli m4aq a small test charge. What is the magnitude of the force experienced by f 6l wm4q4iarl/z p8)aa 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distanx7 py/659g rdbth7,vudfs5snce of 4.0 m. What is the electric field at a point midway between the two charg7sn5tp h ,uvg yx7/6rdf9s5 bdes?

  A 5.0-mC charge is placed at the 0 cm mark of a me*f3) vd:;yvuksf9 spth;.micter stick and a -4.0 mC charge is placed at the 50 cm mark. What isffvsdk;) mt.ihv 9:; ycp3su * the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the9f2 3ut0y9f yp u7wphl 0 cm mark of a meter stick and a -4.0 mC charge is placep0f9 p 7fu3wyut9 lh2yd at 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 = ;mty)ryk /wi- q) -dv wv,yp+i0 and x = 0.20 m. What is the; wy k dvyt-i ))q+pi/,mrwy-v magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squa67vxeu5zr0f 9t mr)rnbj4e6g re of side 0.50 m. The last cornt4r m)9r6ebz7gv e6u0 fr j5nxer 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. Cxrpfy ,k4nd1p .3dgnd 2: 8hsaharges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, ,8fh nn: 1xdd4sy2dppkg3a. r1); +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 mpbk+2 mmte7/tss rf9 y954tnuniform electric field. Wha5 eyt rss/fp9 n2m7m tkb4+tm9t is the magnitude of this electric field?

  A particle with a charge of 4.0 mC hasqc/,m ocm 7 ,kh ejjnk1y(0sp6yy ld:z)jyw2+ 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 0.1)sdqizphe*6)h m:f h820 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 suspendedzh: )fq8d)*he h mips6?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed ine )8okb+he/uyp: 2 ogyside a uniform electric field, and is suspended against the force e8:+eykuo)phbyog /2 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 thegg zd).4 7/ue.jk zahr magnitude of the electric field 5.0 cm from zud/)j .ar zg7heg.k4 the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the 0goks: f 6f(1uah*qes electric field 6.0ho (ff:0s s* kga16que cm from the center of the sphere?