State the law of conservation of electric char xp-u;w,2abdvge.

  Is it possible for two negative cwom: jw5jcl6fx ksw( w8j-65yharges to attract each other?

  Is it possible for a (hi8ic4(ef)nznx qgzad/ i54positive and a negative charge to attract each other?

  A glass rod is rubbed with a piec91*nld . jccyr+ffxi 0e of silk. During the process the glass rod acquijicl9c . *rnd y+xf01fres a positive charge and the silk

  A proton carries a

  The model of the atom shows a2ct q. 7mfex)k

  A neutral atom alwayw-ds4w26jgi skw gs,( s has

  An atom has more electrons than p,dtq kzk5xx 5gq)2ur(3hvm9h rotons. The atom is

  Materials in which tibw9zgzio5lqk p e;ya-1jh1n14 m2 :yhe electrons are bound very tightly to the nuclei are referred to 4q empzw2j11y9 :o1b5gy-azini;hlk as

  Materials in which the electrons are bound very loosely to the nuclei and can mo8.h *e(b yskzbu.p* tkve about.*uts bhkpz*b 8k(. ey freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metalq q/p 23n1ku.ml3k5d4b iidei bar. The end of the metal bar farthest from the charged rob1k2dpm5d4ik. n/qi3e u l i3qd will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. lsszq 7qpooe ;6/c0x/ *t. wjgThey are placed near each other on an insulated table. Sphere B is briej0gzp/6c /e qloxq.t7s;*wosfly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope y 99is r+ sgeul 5s.jmt,w12nt0f3( rliu,sr dpositively?

  An originally neutral electroscope is b u16m7 dklj1ceriefly touched with a positively charged glass rod. Tkm1 cu7lej6d 1he electroscope

  An originally neutral electroscope is grozn: 4k k3o d;w85clpoej ftbj;(v)yb(unded briefly while a positively charged glass ;(3p54v db8j(: tlewk;z) onojckbyf rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and th)de /dxf6y zp )/xweq/e leaves separate. Then a negative object is brought near the electroscope, but does nxezq)//p ed6d / f)xwyot touch it. What happens to the leaves?

  A large negatively charge0gqj.bx 2l, zwd object is placed on an insulated table. A neutral metallic ball rolls straight toward the obj2 b j0qgzw,l.xect, 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 the Cou uu, 9o3l4jvdmr s0nu.lomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The firshc4 (7(w4sqv4zlgx:m * 1bnmoz gcv0gt charge is larger ingwsvv 0z:gb(c 1omq44lz47( nm g*x hc magnitude than the second charge.

  Sphere A carries a net charge and sphere Bhdcja). mawsaz5p 1g/w *5 9jq is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic fohwmc j ) wzapgaj51qs/d.a 5*9rce between them?

  Two charged objects attract each other with a certain force. cd679o 5ldf(kp,gj lxgsv h58If the charges on both objects are doo,h(f 57sd58 gjpc 6ld9vxglkubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual att58 p:c2khll (.jazowpractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutu.5jpp2h c lk:l8o(zw aal forces?

  Two charged objects atty(,)iu.rhb2 c) nuook ract each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their cenby2,o()uun. kohrci) ters is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are ;q*ol)*yg.uyk/ -gnf -pn ou hseparated by a distance of 1.0 m. What happens to the magnitude of the force on the proton uol ku;o qghfpyg)*-n n*./y-if a second electron is placed next to the first electron?

  An electron and a pro.lautw)tu eg0ap2c +i*kh 4 1tton are separated 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 thtw 1.)* 4kga2t0upi+lehu a cte proton?

  An electron and a proton are separated by a distance of 1.0 m. What3. d;pd-ymztbiq( tu - se,l;m happens to the size oq ;ydt (i .-ezlpdmu;b mt3-s,f the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is pla6savi-5my,7y ooe.gk ced 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 positive charge at the square's center. Now, identical charges of -Q are placed at the othe7,eoo6myy s -akvig5 .r 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 centroo0mly +cq*pua.5ly30k c oh,did of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertic5coll0u3 c adp*mho 0kq,y+ .yes, 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 is4bxhq*o) nlkz gsic r6* jn63. not a vector?

  At twice the distance from a point charge, the strength of the e07mhtl3b6 tve lectric field

  Is it possible to have a zero electric field value betwwx -2qb( kj d2kdf*ato4a1u1b een a negative and positive charge alonga 1kwu*1 t-4jbxdo2 aqdf(2bk the line joining the two charges?

  Is it possible to have a zero electric fiel.n (mtrw4 6h/zznzg2jd value between two positive charges along the line joining the two chargzjwrgnm 2hz(z 4 nt/.6es?

  Electric field lines near psitall28ap z lnnk- *vgy4-b9u-gu*4 gzbive point charges

  The electric field sh.ov +tkzmr)4pown

  Can electric field lines iu(q4n xi7 , 52e7:phulcua xlentersect in free space?

  A solid block of metal in electrostatic equilibrium is 4+vm.rnxz+-kt(bgtf placed in a uniform electric field. Give a statement concernkntfmr g 4t++(bx. v-zing the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamq9b0 sn8h yfmc0*9ls zeters are each given the same charge,y* slbq8m0n0h9z fsc9 the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table iv(8 gp/czpy nf7l xdm**jiir ,(0bt5wn a region where a uniform electric fiijp7(ic0z(5 tmv*8 * px/ybwdn ,f lgreld is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilx; +jyo1l p60u9ckavzs4 w)r3 doyfl;ibrium near an electric charge

  A positive point charge is 0m7+ns6dzcnyir. y+d 3is n +senclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abo7+ +ir+ c6yszn mdns0.y3nisd ve the hollow sphere has

State three properties of conductors in la3m; +qhk mt2tljmc ;-e2z2g static equilibrium.

State Gauss's law.

  The charge carried by one uq;+ itf, an8helectron 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 more protonsay5mo3xb:pyh 6f /ds+ than electrons does this pihab:5+3opm df x ys/y6ece of plastic have?

  What is the charge on 1 kgsmv4lt .1zcth sd5.e3 of protons?

  An atomic nucleus has a charge ozn , b; odo+-wh0kn)vyf $+40e$. 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 charg .o 3x 7ukwsi(j(man--bj/jgbe values of 2.0 and -4.0 mC, respectively. What is the mag3omgij xw((jjkb . /b 7-s-uannitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betw0q, ;sm*h gqx*e/wnd:: htgvvaf;q5jeen them is 1.0 N. What is the magnitude o5 x; vm *ha:,jdhgq*t;nvg qq: w0ef/sf the second charge?

  Two 1.0-C charges have a force between them6w/ uft(cu g4zlya-*vap* hxlg 57c: c of 1.0 N. How far apart are they?

  The force between a q93 n 7hqt wbu/:e(gdji (y(de$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallpilvj 8oowj3/h 2.z )x9vr;gky 2.0 cm apart, experience a 1.0-N force. If they are moved tovo/)k;2xi3pzrhgw j8o. j 9v l 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 first chzas2j0z)xkr 7o3h zhz l z9w71arge 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 eleszz3zw kz2 ) hh097lxr7az1j octrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of ubiam(c9449-odclu oc* enh9 +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 electrostatc 9cc4eao4hid lb n99umu*- (oic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC -8 w-2kn./3 q wyswwwph:eqdfat x = 1.00 m : -wwww-wnpqqh23es .f/y8kd; 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 charge?

  A point charge of +Q is placed at the center of a square, and a se+h j(fp.xrv4yf,2ubta+em * ocond 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 oo+.trb ( +2epv au4 xffmjh,y*n 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);biz4-4(0.mjrr knbyp: wl7 aq Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of tazb( w7n.4ljb-yqrim 4pk r:0he 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); Q3 = 5.0 o84:z- :tb*x ojm :rgvwt(umw nC is at (0, 0). m:-tzwob ju: wm*o:v8(g tx r4 What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC wru )csr1 -gr.5vl ni(are placed at the vertices of an equilateral triangv)5-ilurr1sr.c (wn g le 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 of +Q and +4Q, which are separated by 3.0 m. A(1t-:ld(n mjrsrpg w9 6dq mn-t what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrost6rm(g: tnq-s(d lmj9npr w-1 datic force acting on it would be zero?

  A +3.0-C charge is ad:je ov zd 3zcwpo(r-r.0. ,iwt the origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so thv(czpo.d -j:w row. iez0,dr3 e net force on it is zero?

  Charge +2q is placed at the origin and charge y0no19k6 )mp;a,+ ndh1t fqohkif2 da-q is placed at x = 2a. Where can a third positive ch+d60q , ohftnmy2f1ioanpk9)1 ;dh ak arge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total o)vm ihrnm;+a; f $4.0 \times 10^{12} \; electrons$ 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 1qnu hqjqx23*by the attraction of a fixed proton some distance above it. How far ajnq2 *31 hquxqbove the electron is the proton?

  Two 0.20-g metal spheres are hung fyx+w)c s5g1qfrom a common point by nonconducting threads which are 30 cm longq5w1g+ c)xf sy. 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 magnitude of the z. 2qwqs 1a5d4plgy( qelectric field at a distance of 1.1dazq2 .pq 4 5wsygql(0 m from the nucleus?

  What are the magnitude and direction *qe8fzu 9r 47hz/yozf+-lbyn of the electric field at a distance of 1.50 m 7r+z zq4 ey8n9 fo*z-fh/buylfrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is ;f1wfs5ddwb s(+c5 z4mkok- cthe magnitude of the electric field at the location of the test cc+5wsm;w(5obf- 1zkf4 ddsk charge?

  A 5.0-C charge is 10 m from a small test charge. What i y/l,wtccd :z/s the direction of the electrit ,w d//lczcy:c field?

  A 5.0-C charge is 10tvn7h, v() hep m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC c )hv,pvh(n7teharge 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 of nvvl6si5;, 7oa 50k8pz tjmrk4.0 m. What is thin,6rop7lzj; kv5m5tvs80 k ae 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 and a -4.0 mC cha;j3z f aux9:ud s1mdr3rge is placed at the 50 cm mark. What is the electric jf 9uxsum :z;add13 3rfield at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark-gk1lze)uackm.6*n o of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what pointkm) g*1nl-e.aco 6zuk 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;xwa8r3qr7a;b s5tt2kfan) b and x = 0.20 m. Whaaq 3;fba tsb72trwx ;r8)nak5 t is the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of sidz5f zti c hr 6d8g )vyqmrs)y(qf6.9-re 0.50 m. The last corner is occupied by a -3.0 mC chargq8.i6s- rrf)gmyd(t) z c9yv6 rzhq5fe. Find the electric field at the center of the square.

  Consider a square wh(q)0+r klbsqpp x) cf.ich is 1.0 m on a side. Charges 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); k)p bq 0)s pqf(+xrcl. -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 ktgip 7sf;ca ;6w:qh /zckp*5of 5.0 mC when it is placed in a uniform electric field. What is the magg*t kf;zpkqc76/aw5s i;:hc pnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass ofxv2 fs1k+ig8 jrr4op :r:hia2 $5.0 \times 10^{-3} \; kg$. 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 electrp vhya2xsz ;fnj,75r :c;hb0dic field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be0c; zfvj h 2yrhx,5 ;npbda:s7 suspended?

  A foam ball of mass 0.15k iwe )7jy.pv+0 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspend7pe.) +ijkvw yed 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 +2.0j :.*ix6bhjvl mC. What is the magnitude of the electric field 5.0 cm from the v* h: ji.lbx6jsphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the t6q8 do 9kjic*a00pkqelectric field 6.0 cm from tjk*d8o9q pi0ac6 kq t0he center of the sphere?