State the law of conservation of electric ch .62 i,.nvfkmktwp8siarge.

  Is it possible for two n sqlfn c9x**c)nm7r+k egative charges to attract each other?

  Is it possible for a positive and a negative charghi*t/m fg8xk0fyw3 z6 e to attract each other?

  A glass rod is rubbed with i v7pq4apox4-b,0/ *w i)uw bju9pfas a piece of silk. During the process the glass rod acquires a positive chargx/ afpub0v *w)9b ipw aq4siup,j- o74e and the silk

  A proton carries a

  The model of the atom shows cnzzpe+zx 6o6, ni+m5a

  A neutral atom always has:m8uv gqwdh 2ikd5. :i

  An atom has more electrons than protons. The woz40*q 2k/0:gh)z ez jodqnvatom is

  Materials in which the electrons are bound vershiu nv)w ps5lwh5pw, o *185ly tightly to the nuclei are referred to ass)o15h l5ui,vwhw8 p*l5w nps

  Materials in which the electrons are b4prxjpjos5 . wm04 (ykound very loosely to the nuclei and can move about freely within the material are refe mjkj4 504 (prsoywx.prred to as

  A negatively charged rod is brought near one end of an uncharg )j9ji +d7 -czxf7j-dg+mpoz zed metal bar. The end of the metal bar farthest from the charged ro oc)d fmpjj+z7z zj- -x9+dgi7d will be charged

  Sphere A carries a net positive charge, and sphere B is neulo*t doiv c40/g.rite6td65 j tral. They are placed near each other on an insulated table. oj tod0.ct*/ veg4 idt r6l56i Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope posit 1 lfoc5hp2hd6ively?

  An originally neutral electroscope z1 lp5.9l h;eewayhhg( g 3b:pis briefly touched with a positively charged glass rod.l(ypbahzp.eg:l5 3 w1hh;g 9e The electroscope

  An originally neutral electroscope is grounded briefly wh3ddmms i.o42tile a positively charged glass rod is held near it. After the glass rod is removed, the electros2 si4omd .td3mcope

  A positive object touches a neutral electroscope, and the leaves separate. (wx wk +j0/nul Then a negative object is brought near the electroscope, but does not touckw /(+wn0 uxjlh it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neu ,mut5/:d2u;l jab (;p5lbu qhj)ek aztral 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 o bu(qhpdl;u ba zl:,jt;j 5uk5e )2a/mbject. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb conw5.8 (voubc9 zdy 7obsstant $k$, which appears in Coulomb's law?

  Two charged objects are separated 5leplt k,5qq+pg2r/ yby a distance d. The first charge is larger in magnitude t,5gkpltl5eqq/+2 p ryhan the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eacb*9 - v:clhf bzg0r z2xwm78noh other on an insulated table. Which statement bebznwvo87 g0fz*rmb9x-h c2 l:st describes the electrostatic force between them?

  Two charged objects attract each othe1:uu0de*s n lpr with a certain force. If the charges on both objects are doubled with no change in separation, the force bet*0ne:p dul1suween them

  Two charges are separated by a distance d and exert mutl)16g tumw j7mual attractive forces of F on ejtm)6mlu g71wach other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hap lmp2wu, kkp e6g3s8 q,,odzt:pens to the force between them if one charge is doubled, the other charge is tripled, and the separatig6,q2w le kmou s,3t 8kp,dz:pon distance between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distanceplmg *98w i n7d2seg;x of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the firstn pd*l;xs 7m8wig9eg2 electron?

  An electron and a proton are separated b idy*dw( (tm xm7knso8ks,g. (y a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron itg yo iw. s7,m kxm(k8(*nd(sds placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 ux+,* sz npgm+m. What happens to the size of the force on the proton if the electron is moved 0.50 m c,+sz*nxgp mu +loser to the proton?

  A point charge of +Q is placed at the center of g-p/,vw jztr9t 5yuoe3hmy:. 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 magnitud.5 mgr3ywo/pjtz eh ,yvu9-: te 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 equiln:fyk 5pq73eeateral triangle. When a second charge of +Q is placed e:5fk qneyp73 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 vertices?

  Which of the following i48+islp zv8 y+0qhi im+ede m.s not a vector?

  At twice the distance from a point charge, the strength of the electr :fs rkv-v w;by6p n2q3;15jhphvnlh ;ic field

  Is it possible to have a zero electric field value between aeci9gsx+ w4 y0 negative and positive charge along the line joining the two cha 0 i4e9scgw+xyrges?

  Is it possible to have a zero electric field value between two positive charges 6x.kjf zfken9u:oz-k v( c7e)along the line joining thukk)c vk zo: .(9fzx67-e nfeje two charges?

  Electric field lines nearsb a b;*t knna.gk*:u9 psitive point charges

  The electric field sh:8udtyo)u xin/;1 e7lq w)ygrown

  Can electric field lines intersect syqv;vm.:0t0 vyfc j) in free space?

  A solid block of metal-w v9k5iv09scnrc27tn + vz nd in electrostatic equilibrium is placed in a uniform electric field. Gvs-v9zw+0rn tc nvk957 2icdnive a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal w2 *ovo)e.nyosphere of equal diameters are each given the samw nv) eoo2o.y*e charge, the electric field (E) midway between the center and the surface is

  A cubic block of alun8-j 3z(c sadcminum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said c- c a8d3zc(sjnoncerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chargeco:c7dl:.vecju-y y6

  A positive point charge is enclosed in a hollow metallic sphere tj,)os03 ul fc7ixb;rmhat is grounded. As compared to the case without the hollow sphere, the electric field at ar ,37fl smoui bc0j);x point directly above the hollow sphere has

State three properties of conductors in static equilibridtxkvazkr ;k*s/u nb,ya0 + 17um.

State Gauss's law.

  The charge carried by one electron ism7kxh.t59 bks 1(uvvh $e = -1.6 \times 10^{-19} \; C$. 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 protons thanhp2trw+ 6scy * electrons does this piece of plastic havp+ycs 6tr2 *whe?

  What is the charge on 1 kg of protony+gqm6l7q kmo9djh,o 8;h/wc t8ehu2s?

  An atomic nucleus has a charge jxn 2oyr02c-8lnwd8d of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separa tg5vl 63i(r.gs.xl2c bz 5wcjted by 1.5 cm, have charge values of 2.0 and -4.0 mC, reswct(2b i cgzl6 vs.x5r.gj5l3pectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 ma(;-k b-w) h;og ksal9kz2kac from a second charge, and the force between them is 1.0 N. What is the magnitude of the;sbk9 k z);kah w(aog k2lc--a second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are thz*q) g/ ya,b3- jprfvzt-- pmxey?

  The force between a dp)xt8 23d czu s6dxn*$30 \; mC$ 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 forcegf8bv fc,z8tv.lpq s - vtzej;1 /v*r). If they are moved to arc8 ;/,jqtft -vvesz *vb )1v.l8pzfg new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2 )3dh1:b/lje8f 4glmqhv n mg0qgupk*fl7 99s.0 mC are 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 charge at the origin0e1kjs3 vgf :m b*n8l4hdll/7g fu pg9qm9h q)?

  Three point charges are placed on the x-axis. A chargek3wr e3t b4 plazf;84z( gqmb+5bl(by of +2.0 mC is placed at the origintgb;3+(eb8llzf4(b 5a4m w rqpkby3z, -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 force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x = kd,;*ujdpax *w ;ic-p1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. Whuj; d- cip;*a* wd,kxpat is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placx62fk40d*fvv,ej wz o ed at the center of 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 positive charge at the center. What is the magnitude of the force that acts on the centexeff4dzo w,0 j 6*kvv2r 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 = -1.0qoe al)x 0eg54 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thege0o45la xq) e magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1mutrqq9-5oz 1( +z,pfisd i+5; bj pkd.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at op( ;p ,9-+dq1 +5jmz 5zrqukitdbifs (0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC and:;pj:p 5;y -o//*xk r+tja/e to:mflynzdbre placed at the vertices of an equilateral triangle which measures 30 cm on a si+/bk a-porn xf5/ m:;*yyp/jjtl z; e:d: otndde. 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 separatvjvx w94i0oypg op.-. 5rk q6wed by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q 6x5 -.9rqvp pv04jowgiwyo .ksuch that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C chav6kr2nvd. w- arge is at x = 4.0 m. Where on tdkvw-.n2 r6a vhe x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin 7 gjngy 9em3:jand charge -q is placed at x = 2a. Where can a third positiveyj9jm:n3ge 7g charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A/jpgpuw.r;cyqsv.9z yq 3 9g9 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 againskxzick z8 3v-8yrlw)0t the force of gravity by the attraction of a fixed proton some distance above it. wkc 3xkz)zri88l-vy0How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by noncondu b8 /v9qs:sz3wr .t70shsd lxycting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads is v8wyq7d/sbrz0 :t9hs .s xsl3$20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e.o68)wnm f n:zmnoe: wn0q oe)lgy7b2) What is the magnitude of the electric field at a distancnzn)n bmyn qg) 8eem l6f:02 wo7)ow:oe of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fiel6 vo6yw8eh h6jq5ky2;v x.ffid at a distance of 1.50 m from a 50.0-nC charfyoj.6v wi ;k v2h6h5 f8eqy6xge?

  A 5.0-C charge is 10 m from a small testvu:qr6h/ u gu0-jgwh( charge. What is the magnitude of the electric gh / vwguuhj06r(:-uqfield at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of th21v57 dbfkw jf*v msijj)( uc7e e2div7jm*uc js(jwv7b5)ffk1 lectric field?

  A 5.0-C charge is 10 m from a smal9jj;wcx z6(sj n c ov(m46ir9sl test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the lo;9 izcwx(6nj4 j v6s(jo 9srcmcation of the test charge?

  Two point charges each have a value of 3 q gwq3m7ykd*kr dp273.0 C and are separated by a distance of 4.0 m. What is the electric fiel d3q*kpwr y7d7k3q2gm d at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 obp3uzv6e w7;ned9k5 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electrik3b9 6o5;evd 7 npzuwec field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 *r tdorlq4l ho hj+7e0q7fl1+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 charge qtoq1h477o0hrll+ lr*+ejdf s is the electric field zero?

  Two point charges of +3.0xf g4lu*q.gia27iofuq 7*hlemx7j- 7 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway betwe 7fi2aq7hfg7l oe*i*.lum q4x -g7u xjen them?

  Three 3.0 mC charges are at tbs782 +i pzda auw7ue;he three corners of a square of side 0.50 m. The last corner is occupieda z7uda+7up;iew2 8bs by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m7l+z)c5eb ra7 (y ks0d(0zsxatb,gkg on a side. Charges are placed at the corners of the square as follows: +4.00,70( bt xazssa+ bcrekdg 5)lygkz(7 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 square's center?

  A force of 10 N acts on a cha/vu 24locpt (cl( jd(+-lcgumrge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric 2-uugc/(l4jcd vc(tl om +lp( field?

  A particle with a charge of 4.0 mC has a ma8m (vro.nse)y 94iz d*kwc9g dss 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 an6rd4r( kuai59ieqp; l electric field of 6000 N/C pointing dir lukp5q6; a d4ie9(rownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries al,ie.z2c s jb2 charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended agai2s.,blz2ej cinst 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 qs 8zgbp,v4c8kwr *w+ mC. What is the magnitude of the electric field 5.0 cm from,4sw* +kb wpgzc8 8vrq the sphere's surface?

  A metal sphere of radius 2.0 cm cukplbbhb+4v6t 4qd m(u4 a*f ,arries a charge of 3.0 mC. What is the electric field 6.0 cm from the cent+v4b(qak 6*, l4bp4u tmh udbfer of the sphere?