State the law of conservation of electric charg)flg08ix:kml2 mww(f;1r ctc e.

  Is it possible for two negative chpnhl(mu 4wts/lu y t3k:83:m parges to attract each other?

  Is it possible for a positive and a negative charge to attractu4p 2yfhxvzg9 ;9:obu each other?

  A glass rod is rubbed with a piece of silk. During the process the glass r0i pgd.+;ign o9w o2wcod acquires a positive charge and the si0idi ;+co2wwo n pgg9.lk

  A proton carries a

  The model of the atom shows a di,w *mg0//emq.l piadg 2pe8

  A neutral atom alwayfz3r0nt a,uu -s has

  An atom has more elect2i uu9mu30 rabrons than protons. The atom is

  Materials in which the electrons are bound very tik z l+jqto4t2h3*;q gsghtly to the nuclei are referresoqz*l4 qjk 2+t g;t3hd to as

  Materials in which the electrons are bou,;nwoe x7h h2qte;7uqnd very loosely to the nuclei and can move about freelytw nee hhox;; q2u77q, within the material are referred to as

  A negatively charged rod is brought near one end of +v 4mscl ek8w5an uncharged metal bar. The en48s5 ckve +lmwd of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, andykj q- wttr ,l3nbeg1d:*b5tk0 8-,smkvgl,f sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with k,0kq3lfg tsymbkt8 -n1rl,t-5 jv d,:e*wgb a wire that is grounded. Which statement is correct?

  How can a negatively chargej7 hf,/ox7 st4x*bp wed rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a k8o*dfvqwtjz 3 *j1/mpositively charged gl*/j*mjtk3 zw qfv od18ass rod. The electroscope

  An originally neutral electroscope is grounded briefly while a positczezt . l3rt+4ively charged glass rod is held near it. After the glass rod is removed, tz tt 4l+.ezr3che electroscope

  A positive object touches a neutral l57 uxd5jmq*u bb o7*ielectroscope, and the leaves separate. Then a neb **5oqimj57 x lbuu7dgative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object i pk/*ube2j*(c 5gxuu ws placed 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 ball touch the negative object. /2ku ex(c pbw gu5**ujWhat is the final charge on each ball?

  Charge is

  What are the units of the Coulomb c e/0l /o3d3pbe9 u9vteczjiy6onstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first chargeu (oj*jl p n1:kjr.0it is larger in magj*.tj (:nl i1k0jpu ornitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed n)kni9d +lcft 3d9v 8cvear each other ov8 +vtdl)fci93c n kd9n an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other ) xgbt5e9ci. dwith a certain force. If the charges on both objects are doubled with no changetxd.gec59 ib) in separation, the force between them

  Two charges are separated bygqo1(txz.rbs* l(t q3 a distance d and exert mutual attractive forces of F on each other. If the charges are separated by a distan1gq3(qs .r*botzl (t xce of d/3, what are the new mutual forces?

  Two charged objects attract each other with a forc id.zz71+2.xpb 4 wssy iy,lype F. What happens to the force between them if one charge is doubled, the other charge is trii.zy ,dbs .xp+7y2lsp4 ywz1ipled, and the separation distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separan;f35rk-0f+btzk , 2b jfljksted by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a selfk-n5jfsz+0b , jfk t23br; kcond electron is placed next to the first electron?

  An electron and a proton are sepa /tr 3l5y(shn5be-kkprated by a distance of 1.0 m. What happens to thnk 5h(yr -l5/tk3psebe magnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distance vegw+q),e fy5,a,wgixj+c w: of 1.0 m. What happens to the size of the force on the proton if the elec,jq5 i eggw,e)vc xfway++w,:tron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second hbem9 hr:c;-fjx ri8+point charge of -Q is plac +e 8:-hrhxr; ij9fcmbed 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?

  A point charge of +Q is placed at the centroid off 1-fda)jh9sv 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 ot af )-9hvjsdf1her vertices?

  Which of the following is not a vector /i0+anj, sezkb3o7zka3fd-k ?

  At twice the distance from a point charge, the strength of th7wk ;.gn y)wf qupiu-*3gm,lhe electric field

  Is it possible to havea: 9 2j ;olomwx+vcti5 a zero electric field value between a negative and positive alov; :o +2it9xm cjw5charge along the line joining the two charges?

  Is it possible to have a zero elzicq f ,0rd7)sectric field value between two positive charges along the line joining td7rz fs ,)icq0he two charges?

  Electric field lines near psitive poinyu 4mz4en3p( dt charges

  The electric field shskoz);+8 y;j:mg9vsj2 ii fl iown

  Can electric field lines intersect in free sx:ao )uhad.:upace?

  A solid block of metal in electrostatic equilibrium is p3c/;lzncl yb- laced in a uniform electric field. Give a statement co /;-byzcln3c lncerning the electric field in the block's interior.

  If a solid metal sphere and a hollowcibu2iv; a e17 metal sphere of equal diameters are each given the same charge, the electric field (E) midwa;b72i vuc eia1y between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifornlnc;h 9i8 uv27 qkf2)hy.ma sm electric field is directed straight upward. What can be said conc i ky7 mluf8 9.22c)snhahq;nverning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium neob3 wdl)-.1 fk*yvkxce4saq9ar an electric charge

  A positive point charge is enclosed in a hollow metallicqg2rv01va2t qg c4 d7s sphere that is grounded. As compared to the case without t v7ts2c42vqg dra1g0qhe hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibrium.hng,1d zj3hx6

State Gauss's law.

  The charge carried by one elec:rr/zib wxf -9w rv/o5-3byth tron 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 mCb(yx+ ucn v1.n. How many more protons than electrons (+ynbxnu.vc 1does this piece of plastic have?

  What is the charge on 1 w3x*vv c)vx -nai /p3j 3dvx,ykg of protons?

  An atomic nucleus hapltm 4 2hwbl/so+/ k4fs a 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 j7q0(ruysocc)vjg(( g9a mh6 values of 2.0 and -4.0 mC, respectivelhc (r(smjuj6qao(vg)0gcy 97y. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, a pmsv34tdj8x3 nd the force between them is 1.0 N. What is the magnitude of t3 v43jpd msx8the second charge?

  Two 1.0-C charges have a fooq t+m:xs+8bzckl. yjx/( aw/rce between them of 1.0 N. How far apart are they?

  The force between a t*5( jnodzrzvxo.u 1 ($30 \; mC$ 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 forcedj*aqob2 7.r l. If they are moved to a new separation of 8.0 cm, what is the electric force betj.2oralbd 7*qween them?

  Three identical point charges of 2.0 mC arey 2:jz9z+x irl placed on 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 on the charxzr:2y 9+lj zige at the origin?

  Three point charges are placz,p( mvn sh32ged on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C 2zhgmsp (3,n vto the right at x = 50 cm, and +4.0 mC 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 located at the follk+kf4p;bvv +zo*;r aa owing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -v r k;oz;f k4ap+abv*+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 * 0mho en 1uh/ca5hnpz;/l)ezof a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on the p1phom;u )/hn/lna *5chee 0zz ositive 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); Q3 = 5.0 nCfcu4n fqp,u* ai r hj.+j- .si,pbx83s is at (0, 0). What is the magnitude of the net force on the 5.0 njpr xf uq. f-hici nu84.*,s3pbas+,jC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.nc;mng+ol,7 ph k; jbs+a543d7vz hw l10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 h 7l v;4w5anl+ms+k7 gzb d;,cj3hpon nC charge?

  Three identical charges of 3.0 mC are placed at 9t zmj6y.nml q,(5lyp the vertices of an equilateral tr tn5yyjq9lpl.mm , (6ziangle 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.7 o +1rgseikzn/c5 o9ws hcc*3 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 wsz5i1+cros9 / n37*e c ckgwohould be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = kwi *d imu7/hc:z(grd,tcl 9mq+i4.s4.0 m. Where on the x-axis can a third charge be placed so the ner l/*w(idmu zkihg:i.sct4+d 7q , 9cmt force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x b+ m)icg, p+c)56 iqp.lbjwyj= 2a. Where can a third positive charge +q be placed so that the force on b,y jm i gji)6p+pq+.c5c bw)lit is zero?

  A copper penny has a mass tos(p se8tu*(of 3.0 g. 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 - dxe3alkg3l)es 0gg1 a fixed proton some distance above it. How far above the electron is the protonke33ae gg gx s-dl1l0)?

  Two 0.20-g metal spheres arh(yce60 fc1o-f dc; vre hung from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and1fe-c6dhry ( fvoc0c; 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 chamyw nrmrg: 5wgx:3 4x 3mnriq5ni +.t,rge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the num5rrg.:i 3wy,+wxgm5 :txmnrni4 3qncleus?

  What are the magnitude and direction of the electric fo9dnu s80shbs +,o:a4nqmm en(,u9bj ield at a distance of 1.50 m from a 50.o,+b u d(n,nus:ms4 a9jbsmq08neo9h0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. -:eleu/o kkp1sx* /;zyy 0paf What is the magnitude of the electric field at they- oul*zkpfs01xa:e k y;p/e/ location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of e2-3wzzrko ;1--e v qqyx re*ythe electrryz3e-k- v; q2ee q- 1*oxryzwic field?

  A 5.0-C charge is 10 m from a small test choj,xl)7:iq/9 dnzjqr arge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of j qx/oz7dq9rilj):n,the test charge?

  Two point charges each have a value lpxm:rh5rqj8+(3 cd uof 3.0 C and are separated by a distance of uj h mq:3+d8r5(cx plr4.0 m. What 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 and a -ds48 qd0k2q uu/uoy;i 4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm;udi 0qu yd uqs/42k8o mark?

  A 5.0-mC charge is placed at the 0 cm mazc 6uzc) ; l(ylvjj1*vivo- 7o4-iod prk 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 o1*4-)jvcuzlol ;ii yvp6-(zv7o d jcfield zero?

  Two point charges of +3.vpqye19 qx4/t0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the mypvt9 14qx e/qagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a squavifz/ te9wz zzb)++2 vre of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find v z+2t fez)+ iwvzz9b/the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Chdl*.y udv/(l2qoqh d:arges 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); -3.0 mC at (0, 1). What is the magnitude of the electric field at lhy.2 (*qdvu/odq l :dthe square's center?

  A force of 10 N acts on a charge of 5.0 mC ii ;f* qzq:ixsva-,y9h8ai+awhen it is placed in a uniform electric field. What is the magnitude of this electric fielza+iivqahf-as*8,9q xi;: y i d?

  A particle with a charge of 4.hz d)(qvu un tcw8(+z30 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 placed in an electric field of 6000 gd*/g/wwb j0 gp+du5,,u owemhn,3yb N/C pointing downward. /u *nwu gb d 5w,3gb+hdp,wgyj ,o/0meWhat charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a chczg tdt;byc g 6xy-k,cjj ;,jq)u10+targe of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What a60cb),dt y+1; ; j-jkygc qxtjctu, gzre the magnitude and direction of the electric field?

  A metal sphere of radius cb6n3as h+k7ud5 *uuk10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from thb6cksun+ad uu k57h3*e sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is 6j rxzn,p0ek(0 ;usrcthe electric field 6.0 cm from the center of ths(z0knxpre0r c,ju 6 ;e sphere?