State the law of conservatvz5gny . z*g4h-t-s plion of electric charge.

  Is it possible for two ne:iqg;uxkb) ;iu9) ue /sdri:c gative charges to attract each other?

  Is it possible for a positive and av-1 ax -fqps.z negative charge to attract each other?

  A glass rod is rubbed withui( i te1+nf+mnm *slrk))f4l a piece of silk. During the process the glass rod acquires a positive charge mn s* liti1f +fnu e()r4lm)k+and the silk

  A proton carries a

  The model of the atom shows-ojm h86x a:e;6jw hpx a

  A neutral atom alwayse dx70calz -(c9mspq3o7/g eu has

  An atom has more electrons t ,uzdn7 zit9frq2f;y6han protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei ar9y ab j6xcri;b*3-ge ee referred*bg e96ri3jb-xae yc ; to as

  Materials in which the electrons are bound very loosely to the cs a 8+q;kw,dvnuclei and can move about freely within the material are referred to as akv8wds;+,c q

  A negatively charged rod is brought near one end of an uncharged metal bsazno 5/c4fu: lytkh 3i76y4 gar. The end offg/o 4hy4i5s3 u l:6z7 aktync the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge,w(ms vu6fuxu5*mq n+1 and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly t(6u1qmswnux 5* fu+mvouched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope s1z0 z6qj vc1q.gl)(oy8cb dm positively?

  An originally neutral electroscope is briz q0/b*k po,h ncng. :ve;gdu,efly touched with a positively charged glass rokgqeh , nn.0:pcgud;, /*v zbod. The electroscope

  An originally neutral electroscope is g3 mmowju7cv 9 j(58xl njf*r2trounded briefly while a positively charged 2jnwm (3lj59xj c78*mr to fvuglass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the lb;(/ocze duw565mw wgeaves separate. Then a negative object is brought near the electroscope, but does not touch it. wgo;w6ue zc5bm(dw 5/What happens to the leaves?

  A large negatively charged object is placed on an insulated table. kjy/3txe7g*g yjrw-h ::zx;t9j v1sh 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 stgstjh: h/g7 *y- ;tjx3xwev 9:z1kjryops. 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 b tm)q ;qhe:n3of+rm2Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated b9bn6qez/zl 4 o(wtld 2y a distance d. The first charge is larger in magnitude than thzd 9w bq6l/ln2et 4zo(e second charge.

  Sphere A carries a net charge and sphere B is neutral. They are pl5duei8el .xio d*/74v1piwctaced near each other on an insulated table. Which statement best describes the electrostatic force bep.vddoi4e18 5ui cltxi7e*/wtween them?

  Two charged objects attract each other with a certain force. If tn6cy6p3:w7zezm;eh3 yl 50 vi tsr:vr he charges on both zp6 mz h viy5l 7; vyscnt3w60r:3e:reobjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual a)5tg5vp za c; d(odov/ttractive forces of F on each other. If the chard z ;ad/(5 v5g)tpocvoges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a forc/)h vczguy n/c 73(llie 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 reduclv( n )ygczlh7i3/c u/ed to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.0 m.n r kmsq+9rta/:)ia-i What happens to the magnitude of the force on the proton if a second electron is placed next to the first elecnmr k i rq9i-a:ta)+/stron?

  An electron and a proton are separated by a distance of 1.0 m. Whati1lkb/) qi +5.7 99omtuo zqhyaooh;g happens to the magn9yiotih)lo9zo+b7m1 a h;qo/5uq k .g itude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separate- 9qmgg9nu vy1(w ym3yd by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50umq-ygyw1n 3(yvg9 9m m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second poiny3oj 2wzs)8t,qy.4 fgy.fqvl3sz f2 2ku) wtat 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 3a)y w22fy3 s q gk yf4)fj.w8.u,vtzzto2sqlthe square?

  A point charge of +Q is plaowxgf1fcn m 4)tnv5j33fv.i5ni y/ f9 ced at the centroid of an equilateral triangle. When a second charge of +Q is placed at ow5tvnn /3xi j3f oynfgi)1f.cfv 95m4ne 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 is not a vector/wzw:itn/db )vj0w . h?

  At twice the distance from a point0u8oy5 v0hlut charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and pos4l z-ke,k 0k9gmjsd1ge4 h4ddz 8hz1ditive charge along the li,ddjhl4z kdh me-1 04sg8g9zekz4 kd1ne joining the two charges?

  Is it possible to have a zero electric field value 17; dv( 9emgswwzuw0z between two positive charges along the line joining uw7 ezmsvw 9;dg10(wzthe two charges?

  Electric field lines near pjmr)y7 i7 ;ue+z9xfvdsitive point charges

  The electric field showi *iicy6x)akbvod076 n

  Can electric field lines intersect in free spacmi0 ,d h:yce*pe?

  A solid block of metal in electrostatic equilibriumrfp8* 4v j9 xukwczq(,8vjn9 3y lq-hk is placed in a uniform electric field. Give a statc3n9 r (9pzq8 4juy-kj8,lqvk wxh* vfement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of hheg a7ap.afix i(n *(*u3:c dequal diameters are each given the same charge, the electric field (E) midwayc.ae* finxg*iha((pd7u 3ah: between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region mqz3yre2h/ 4q/s2 +dkoxc+xl0 xo p.4bufje)where a uniform electric field is directed straight upward. What can be said yx. oh lfd/+ozpqs3) +m0q4bu/2xk j4r exc e2concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electri f..*qc(meurpk7 mtgdon ;+6 kc charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundw zf.m2 pd*t0ked. As compared to the case without the hollow spherk zdf.twm 0p*2e, the electric field at a point directly above the hollow sphere has

State three properties of con2mjr 1 s,;wq kj)sk+kcductors in static equilibrium.

State Gauss's law.

  The charge carried by one eledy/ gammh k6(7ctron 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. hkt9yiaq5) ) l How many more protons than electrons does this piece of pla qltai5y)9kh)stic have?

  What is the charge on 1 kedldai1)d75q*iya )o g of protons?

  An atomic nucleus has a btas7 m9 y+lpnxa23a: charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by+dgm22k5 e6dd e+jp by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric fkm 6bdee5j+2 pdd+g2yorce between them?

  A 1.0-C charge is 15 m from a second charge, a pnoikc:cp m:oi9opp5k)s mvh* 1-l14 nd the force between them is 1.0 N. What is the magnitude i-ov sokm):11nil 9pphk54*mcp :pcoof the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart a6, p*.qfrfvha ;rlxt0zy /l v2re they?

  The force between a urz0 m x,px3uk1fb /b;lraf+b c 5l5m/$30 \; mC$ 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 tf 8x c v*oh ;:kiet:.g,ur6vhthey are moved k.ev, h;uh6oitcg*x8vtr : f:to 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 chae;8xrwlcuo3k w/f; ,9f o:qg arge is at the origin, the second to the right at x = 50 cm, and the thiwr ,l q89g3ao:cf; ;w/of uexkrd is 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 placed on the x-axis. A charge of +bwm.v6lllicl- 77 j1r 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 electrl . 6wrl7blcj1mvi l7-ostatic force which acts on the charge at the origin?

  Three point charges are located at the fv2s; bk jzr r/dgt0f35ollowing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.0 /3rfd50rstjv g kbz2;0 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 then8) zd )-gq)9p/z(gvo skmevw 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 center charge if a third charge of -Q is placed at the lower-left k/8)z-g msn(de g 9p)o wzvvq)corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at3qso9 ubv dsc73l *,mr (0, 0). Whosqm3cr 39b* 7ds,vluat is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1..-v2gegco xo /0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Wha.geo gvx/ c-o2t is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateral dsjya7l/s3hm; 7 y*zb triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the yj ab*sz7;/ m3ls dh7ycharges?

  Consider point charges of +Q and +4u9kcnkb)9w /e6 r krz00t qz1hQ, which are separated by 3.0 m. At what point, on a line between the two charges, would it be posz60hkew1 tb)0krzu 99 /rkcqnsible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C ch.e6 rrdi;)rilz mqb/6qeo 2,harge is at x = 4.0 m. Where on the x-axis can a e6mo ;hbe6, r)qr.z qi2dri/l third charge be placed so the net force on it is zero?

  Charge +2q is placed arg /vzarj4e68t the origin and charge -q is placed at x = 2a. Where can a third positive charge/e48g a6 rzjvr +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A x 6ln./pgiwzoxdd 9w vvl:893total 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 a fixedoa5) -;k,txj9qdrap 5 2hj/zexib m ;w proton some distance above it. How far above them hi jpb52x 5/9;e;wkat,qaojz)rx-d electron is the proton?

  Two 0.20-g metal spher2tji ohpb a*+gr9 sv(/es are hung from a 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 o(j itsrvpbg + 29*ah/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 troh c*x0 j1tb+0asw9+so /nqyhe electric field at a distance ots1xnbhqj + 9r ys 0a/wo*+c0of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.5wvcq 5pg 0-b*v0 m from a 50.0-nCq0-vg*wbc5p v charge?

  A 5.0-C charge is 10 m from ysrf/ng1ze )bpgt *v 7 p2e1gw+x2+bta small test charge. What is the magnitude of the electric field at te+ e)f2*zv 2r+gw1np/ p7 sy 1tbxbgtghe location of the test charge?

  A 5.0-C charge is 10 m from a smaz;yij6uv 27xl7 ,kspr ll test charge. What is the direction of the electr7 rjvkiz 7,xps6l2 uy;ic field?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude mz1*rpt7fh*n of the force experienced by a 1.0 nC charge placed at the location of the test cha*t* fm71prnhzrge?

  Two point charges each have a value of 3.0 C and af* 7 gess8l:af4pj y1wre separated by a distance of 4.0 m. What is the electr 4:jegasfls7 *1 fw8ypic 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 nu:.bhra.bc7 2u ;mirp50q8vuz b0f xa -4.0 mC charge is placed at the 50 cm mark. What is the elect:u.ap .0b0b r ;uq7h5xvzmif 2c8nrubric field at the 30 cm mark?

  A 5.0-mC charge is placed jx5nb c 0o1j;s ysqzsy 3j-8m9iwanaos 5*)x4 at the 0 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 charges i j; y*y485xjaain)5w 9cnqmos1sz 3 so0b xj-ss the electric field zero?

  Two point charges of +3.0 mC and -5 o0*jzh(/uwltymd + bp /vh8zs6q9wa7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electu /tjy/zzwl9d 8h6bmhqw +5s v0*p (aoric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square ow4. *24v, lkt folatj8j*i vaff side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the sqf 8o4*4ft wk a.t,2avvl*lijjuare.

  Consider a square which is 1.0 m on a side. Charges are placed at x ahta3b ,d-l4the corners of the square as follows: +4.0 mC at (0, 0); +x b,43-dah lta4.0 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 charge of 5.0 mC when it is placjwc ti ;lp q58 pqb,f.hf.h)7xed in a uniform electric field. What is the magnitude of this electr.fxfp;8iqhjct lb )w 7p,h.q5ic field?

  A particle with a charge of 4.0 mC hasq //ifk- -m-pmbq:hp s 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 plakmlhq -o.9 (hiq7hhz8ced in an electric field of 6000 N/C pointing downward. 9lhzq ihkhhm(-oq. 87 What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.1 g/0l5)x.vl hv ;rdyd- ubztv850 g carries a charge of -2.00 nC. The ball is placed inside a ./xv)8vdr-ub tgzh;d v yl5 l0uniform electric 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 cm carries a charge of +2.0 mzp t9y :3w-hmp1wb8u7ci l-u nC. What is the magnitude of the electric field 5.0 cm fro u7wmp9tzbil: -u 3y1 wn8-pchm the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the electr3ys adb32c h*tic field 6.03sbayd 3c ht2* cm from the center of the sphere?