State the law of conservation of electric charu26w qi8vx-zz8 imql1a1s c 2bge.

  Is it possible for two negative charges to attra/im+h:dy*s -ro*pr m act each other?

  Is it possible for a positive and a noc--nh,+eh n begative charge to attract each other?

  A glass rod is rubbed with a pivh .tc ka ( r-i)l8 pue.;k7+od3qev/e)fz cnyece of silk. During the process the glass rod acquires a positiv. + ;)cn.qel3zvc e )/ev( uih-kktr7pfdyao8e charge and the silk

  A proton carries a

  The model of the atom show-jl vmhwn;xqc1)c luq+ ; 3et7s a

  A neutral atom always h q yp*w+)0rqmtas

  An atom has more electrons tha96bb p f(p9.) cxelsg(uynq7m n protons. The atom is

  Materials in which the electro4u9z2qqpbetpn e22 uld:5 e8s ns are bound very tightly to the nuclei are referred e8925ltzqeb2ps p un4d u2:eq to as

  Materials in which the electrons are bound very loosely to*x 2h h5k1bnnlw ,hny6 the nuclei and can move a*6byx2 ,hn1wln 5nhk hbout freely within the material are referred to as

  A negatively charged rod is brought near one end of a neq8 bc cs,7gya/c8:jn uncharged metal bar. The end of the:bsjy /c,ce8q 7gcna8 metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and s 4y+2rlxrsw r, .5n4wl 5tkcszphere B is neutral. They are placed near e n4l45c2 ,r.stxwyrs+k5zrw l ach other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electrosconpj8nkf *c8gu/l q01d pe positively?

  An originally neutral electroscope ifm )ao,nd (lbnmx i2xzbm1.7:s briefly touched with a positively charged glass rod. The electroscmnom lxnaxb) m: ,(21bz.7 dfiope

  An originally neutral electroscope is grounded briefly while a positivelyv*gj7h*zgd 5r charged glass rod is held near it. After the gzdh*rj5 g*v7 glass rod is removed, the electroscope

  A positive object touches a 4wcb8q ila9j:7hb z;n neutral electroscope, and the leaves separate. Then a negativw:ai;c 7bb 4jz qnlh98e object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed4l)tu9s-f nj xv7oyum, jql56 on 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 ballxl5n-yjqfo7)94 ,6 mst u ujvl touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb coni :h7v s3vc.( bjwvztb2uv6-nfi1c n:stant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lu,38))t dhh xdx(1zq wc dpdyqkz7:*e arger in magnitudehwe7ddk3))ud* 8zz1x (h: d y,pqtcx q than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are p-wtgk5b wz07ouqn +t-laced near each other on an insulated table. Which statement best describes thb0nt- g q-+owzu kt75we electrostatic force between them?

  Two charged objects attract each other witv y4b9kczkng:)yru9):5h k 8wcx1bdg h a certain force. If the charges on both objects are doubled with no change in separation, the force between bk 9ky8u n)5k)ccxgwr9zd4yvb:1 h:gthem

  Two charges are separated by a distance d and exert mutual attractive forces y3 -fnc ze:s*jny;mg1 of F on each other. If the charges are separ1e*gnycn j mf:s-;z 3yated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract eacx:2md-b r lz:ch other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separationzl2-dbcmr: :x distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton fts:f cd6+ ez8are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electrs+cf68z :fed ton is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Whekgoc;n+ (3 t1f.rdumat happens to the magnitude of the force on the first elect(n;1ke3tm.ocg+fr u dron if a second electron is placed next to the proton?

  An electron and a proton are separated byomynvb04 ./7/6-tmq a9 tr8 b nglpbdp a distance of 1.0 m. What happens to the size of the force on the proton if the7my/p 94bm/vlp8- q6b.org a 0bdttn n electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at th gi o(t ;t*aso)3l9aqte center of a square. When a second point charge of -Q is placed at one of the square's c)igtt o3a9;l qtao s*(orners, 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?

  A point charge of +Q is sj 3j13xzur54a 1ljth placed 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 acts on the center charge due to a third charge of +Q placed at one of the345xru1lajsj1hj tz 3 other vertices?

  Which of the following u8 p.onzi+ m0his not a vector?

  At twice the distance from a point charge, the strength of6rx0 ai2qkwr .u1tsd( the electric field

  Is it possible to have a zero electric enhc j8w /c hu/)qnw6fvit-2- field value between a negative and positive charge along the line joining the two chargqniecj /v n--/8u6w2hcf t )hwes?

  Is it possible to have a zerpe1 -/xk 189muv 5v6zesp mw gvq-o+qgo electric field value between two positive charges along the lsw68-pvu e91 mz/ge1mgp5- ovxqvkq+ ine joining the two charges?

  Electric field lines nea(7obem9v h0mta4 b+lrr psitive point charges

  The electric field shownkhx m mm8+ qcvju: zz.npi)j(i9 ex94;

  Can electric field lines intersect in free spu/7 bl pb+eo umvv -5721pxbdgace?

  A solid block of metal in electrostatic equilibrium iwfpqiac v0 5pa) 7c1o(s placed in a uniform electric field. Give a statement concerning the electric field in the block'c71a0()p pfv iwaq5cos interior.

  If a solid metal sphere and a hollow metal sphere of equaz8fg8oe1 l3 zrswb8 xi 4krch ehgo491o:0d:zl diameters are each given the same charge, the electric field (E) midsz e4rxblhhic k8 w1g 3o8do8e fzo40zr1 ::g9way between the center and the surface is

  A cubic block of aluminum rests on a wooden table iln xma4 z a*d44x;u7rin a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's t;a r minx7 a4zlu4x4*dop surface?

  If a conductor is in electrostatic equilibrium6go3uh x+dsw5 near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundtptca ):hjv*m+) b3o krh(0pxed. As compared to the case without the hollow sphere, the electric frva))b :t3o(x0pp +tk* jmchh ield at a point directly above the hollow sphere has

State three properties of conduz o1uxfh l3( (z*pv 8/zvvuwl(ctors in static equilibrium.

State Gauss's law.

  The charge carried by one elecjngn4m 6kq:gx ytb7 78tron 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 ohdb+jqt( 0 5 gr;gmw.rf +2.00 mC. How many more protons than electron +gd.g (q rm0whr;j5tbs does this piece of plastic have?

  What is the charge on 1 kg of protons?97 0pb oqp 37jqh3f lap mtnrpz13(hnh4/7msa

  An atomic nucleus has a chtuccsz)fn)8nzl )s:avho 09e1 c+ :ybarge 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 values of 2.0 and - zr.hiu x5 +:n7i*jxry4.0 mC, respectively. What is the magnitude of the electric fo*i75 hz:. xx yiurjn+rrce between them?

  A 1.0-C charge is 15 m from a second charge, and the force betdzc ( 0 3uhpg-4*eccdbtl0;a exgg: 6aween them is 1.0 N. What is the magnitude of the se0gep b:a cudzel4; t6xa0 *gchd-(g c3cond charge?

  Two 1.0-C charges have a force betwem7eos(.kkmo6: la x)j en them of 1.0 N. How far apart are they?

  The force between a )zolryki 33dm;) d4 fo$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, e 3d6zi1jt v, pkj5kpnasgmrua 5.6a, +xperience a 1.0-N force. If they are moved toj.k3j,pi +1d6 gp5 razvta5s am,u6n k a new separation 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 f1m( yzp 1ay1pbcmi4p9e;jo2first 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 1jy;fce y m412b9opm i zap(p1direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placenb6nqdo z/q:bgn)ja 6z d hwpxv-8:(-d 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. ndd- :p h6/o xna )bqvb6 ng-qzzw8j(:What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC euh-5s )qw*. ef/mzom 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 3.00-mC char-*s. 5)em/wequohz fmge?

  A point charge of +Q is placed at the center of a square, and a second;0 lkrt yq.i(:l:1pgvqrs / fz 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. 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 1 tr:rfkliz l/.y:(qqv g; 0spcorner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0ub1 / jt.nkf2g nC is at (0, 0). What is the magfb.2 /1tujgn knitude 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 at (0, 0.10 m)58f ruombk x)8mpid/8 ; Q3 = 5.0 nC is at (0, 0). What is the direction of the ne omd5r /)kf 88umbxip8t force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed akwc. 5rxgd0/j4 m .aomt the vertices of an equilateral triangle which measures 30 cm on a side. W4oc /5am.xm 0wgkdj.rhat is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, w. j)td9q awzm m0*enq3hich are separated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a chargem03njz.t*qeqmwd) a 9 of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is aunnr +-bz d1s+t the origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third chn1 s++udzb- nrarge be placed so the net force on it is zero?

  Charge +2q is placed at the originro2ydagxuvh 7;+y 08d and charge -q is placed at x = 2a. Where can a third poad7g0 r8y vxo+ d2u;hysitive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. lrig,1 yai5/ nez21r mA 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 grav/u 4q6 w9ywy*l 4sqlyiity by the attraction of a fixed proton some distance above it. How far above qwy4il4lu/w9sqyy6 * the electron is the proton?

  Two 0.20-g metal spheres are hung from a g,nei )e.ki9u common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle bete )un, .iikge9ween the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a p uul 96hay nvlq07,4zcharge of +40e. What is the magnitude of the electric field at a distance of 1.l,6p 7q9 vzyulaunh40 0 m from the nucleus?

  What are the magnitude and direction of the eipbdk cklh*-l6 4xm/1lectric field at a distance of 1.50 m from a 50.0-nC cl*6k pkl/mh- d4xbc1i harge?

  A 5.0-C charge is 10 m from a small test charge. What is n1ere 5cbh 9h9( 5alvgthe magnitude of the electricgh95he r 1an(v eb59lc field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is theqtr.pb/ i-8v z direction of the elec.vp- /z 8rtibqtric field?

  A 5.0-C charge is 10 m from a small test charge. What,*w sx/vph ugka, -m6p is the magnitude of the force experienced by a 1.0 nuw6-p/s,k,v pa gm h*xC 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 distance 9icf tt-ea e*x:uk(s /of 4.0 m. What is the electric field at a point midway between the two (xa-/ste iec f:* 9uktcharges?

  A 5.0-mC charge is placed at the 0 cgj4vih7 (7sg .w5saem 1ukja)m mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the esmku45h1.g s7 j)(awagj7e vilectric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stfj /;*ju ;mwakick 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 field /auf *j;wjk ;mzero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 andzcu w*nb qeg(z) 4,fzggja/3; x = 0.20 m. What is the magnitude of the electric field at the point midwa/zw3*zgf;,jqun e)(bc4ggzay between them?

  Three 3.0 mC charges are at the three corners of a square of sidex- m74 nh 1dik3kkc1dxp6uh6 kouo5:b 0.50 m. The last corner is occupied by a -3.0 mubh6 1k:ckk h41iom3xd uo7 k6d5 pn-xC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the cqsi 3up7etf 71)y:ng-v yzsg:orners 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 the sqvg) nt7g- 3qpi 71:syf:zseyuuare's center?

  A force of 10 N acts on a chal: *kega)x0f8,bitbf rge of 5.0 mC when it is placed in a uniform electric f08, blefxki:* f)btagield. What is the magnitude of this electric field?

  A particle with a charge of 4.6z*qj:ar0h qp6rhoe , ( aihy: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 p 97duk/p x/asllaced in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball forxd la /k/pus97 it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed ip,to7dp t:+ n1t 0s4wyl.wpms nside a uniform electri pmsw7,.:t+lw4 n0ys pot t1pdc 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 cmd;n6qwx g4ql.s;v ob 0 carries a charge of +2.0 mC. What is the magnitude of the.w6x o; qs;d blv40gnq electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2. 7d 5pjn 0,/h:s5(sn/)ho kll.b zelralfd7 dv0 cm carries a charge of 3.0 mC. What is the electric field 6.0 clse.b)rvs55lp ,7ldd/ 7 d: ol0n/h hfz ja(nkm from the center of the sphere?