State the law of conservation of ele/khz le+o3 7*ma1tfpo ctric charge.

  Is it possible for two negative:e c xnb)*6liym-cuo /xh+ qw( charges to attract each other?

  Is it possible for a positive and a negative chargcixq6 3+zk0uc/.zeyh e to attract each other?

  A glass rod is rubbed with a piece of si,8q fgcdl.; zpzd1m y.lk. During the process the glass rod acquires a pos8zd czl. 1d;.qfpyg, mitive charge and the silk

  A proton carries a

  The model of the atom sho 3na8u58s thyyws a

  A neutral atom always 5xiq 8(o mahhugs4-t 4has

  An atom has more electrons than proth3as k16 jo:usons. The atom is

  Materials in which the electroiv2y:klyr-imy7l /7 7n e q(jtns are bound very tightly to the nuclei are referred to aie( qi7t2mkv77 -/ylryn lj:ys

  Materials in which the electrons are bound p:/+tta kc1)f7rysc j j0gyk1very loosely to the nuclei and can move about freely within the material ayygk 1:r 1+jf7cs ta/) 0cpjtkre referred to as

  A negatively charged rod g 1bgcz0 82lpc,d t pv,:b(rbtis brought near one end of an uncharged metal bar. The end of the metal bar farthest from the charged r1v ,l pptbt2c,(bbg80rd:zgc od will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They areexd t6np+eip0 i /31gen(qg+ x placed near each other on an insulated table. Sphere B is briefly touched with a wire that isn 1i+6 3gng+etxie0x(eqp /d p grounded. Which statement is correct?

  How can a negatively charged rod chk,x:4 l5ulpo)o z9x66u.-hhn nnejc7a kwix 4arge an electroscope positively?

  An originally neutral electroscope is bujbb,trte )3i9 1 qfa0 ba20lu*m;bdxriefly touched with a positively charged glass rod. Thbtef r 3xab20,i uqbm;tl)u0*jba1d9e electroscope

  An originally neutral e7u tiv cx81fau (wk(r0lectroscope is grounded briefly while a positively charged glass rod is held nea kvf0c8i(watru1 7ux( r it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and thevtg eto34v z/- leaves separate. Then a negative object is brought nea-vt eg /43tzovr the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral mey54x)4x n7a4q2 uqk l isb 4vd*qylw-gtallic ball rolls straight toward the object, but stops before it toucheq4w xy7 dayq i4vk l4s2-b4u*q)l5xn gs 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 Coulomb cor-0msvtku3;z7ox2v bnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is las:sq0ew) *bef rger in magnitude than se*se0f w:b q)the second charge.

  Sphere A carries a net charge and sphtm ijv3pa03bm- :6ois ere B is neutral. They are placed near each other on an insulated table. Which statement best dem33ipvsi 6j :ma0 ob-tscribes the electrostatic force between them?

  Two charged objects attract eaw5bpne8+6vl 3 ega8q yx1((o5z vjbavch other with a certain force. If the charges on both objects are doubled with no change in separation, the force benj 81(o 5qvye vx65ab38evwlb( +z agptween them

  Two charges are separated by a distance d and exert mutual attrac2 (4qfto +nouotive forces of F on each other. If the charges are separated by a distance 42qonouto+f ( of d/3, what are the new mutual forces?

  Two charged objects attract each+ ot ewdqrbw:m/7aqu+; vu0dr/9cs9j 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 centers is reduced to one-fourth its original value? The force is now equal tqvc b/+;a 79t r/s: rmq0 jw9duwoude+o

  An electron and a protyb 9nvepi ) e35 j-whvl5*/tnvon are separated by a distance of 1.0 m. What happens to the magnitude of the force on the p tb*l3v59ny/v nvwij -hp5)e eroton if a second electron is placed next to the first electron?

  An electron and a proton are oms+luv*no t47eri(7:l (.qkjmf qt- separated by a distance of 1.0 m. What happens to the mago :o fi(. njq m v-s7ermu74*kltlt+(qnitude of the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton are vl/knk.ep0vz 5hc6 /y8qm fg-separated by a distance of 1.0 m. What happens to the size of the force on the proton if the el 6nv8 qkz-k l5.y/ceg h/m0fpvectron is moved 0.50 m closer to the proton?

  A point charge of +Q is plack9.n2 u)axubu-vz :b;pi x)wvfa(k7ued 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 other three corners of the square. What is the magnitude of the net electrostatic force acting on the positive xa np:.v;(9)a2kvbuu)uf 7 ixuw-b kzcharge at the center of the square?

  A point charge of +Q is placed at the cen*;js/ h 9nxcl5gs3kw 79xeegptroid 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 9*;sh7 gkxl53jxw/ s e9pgencof the other vertices?

  Which of the followi gdbx5s2 4k8 7akwxde0ng is not a vector?

  At twice the distance from a point charge, the strength of the electr hlj;:gp mp(q n:9ayq+ic field

  Is it possible to have a zero electric field value between n*z *us(vp 1m8(unrnr a negative and positi nsp8m *r(vu unn1rz(*ve charge along the line joining the two charges?

  Is it possible to ha3ej zwtzp*+x 2mc.9 pqn9wy:bve a zero electric field value between two positive charges along the line joining the two chan2939zyb m*:xc pt qj +epw.wzrges?

  Electric field lines near psitive point chargrc 2q a1acjm;+es

  The electric field sh2s18tb rna2umb/ 3ltdown

  Can electric field lines intersect in freat :0qak8bg5 shi6 xq(e space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform al /6rdqq;r+rr rf2lr.d(. xmelectric field. Give a statement concerning the elecxl/rqm;6 +( r .f.ardrrdql r2tric field in the block's interior.

  If a solid metal sphere and a hollow metal *oueg b,aw9kipqc +jv 4o7r42sphere of equal diameters are each given the same charge, the electric field (E) midway between the c 9je 2opbr*k4i+ 4vagq7uwco,enter and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unifop s 0hq3, y/byd0-ndvprm electric field is directed stra,ys30-d bqp0pdvhny/ ight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nez(tu+n0l .y,b bzm 2zpar an electric charge

  A positive point charge is enclosed in a hollow metallic sp6e9kjp/eet d0; 3jegh here that is grounded. As compared to the case without the hollow sphere, the electric field at a point directl;het3j 96e jeg/ek0dpy above the hollow sphere has

State three properties of conductors in static equil qk y7zh1kv*m4ibrium.

State Gauss's law.

  The charge carried by o 5bq32 sl/bwgone electron 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.x . 9) jo*pi shmsl0v/ojzp4b300 mC. How many more protons than electrons does this s mb)v4oiz/9j op0 l*3jp.hs xpiece of plastic have?

  What is the charge on 1 kg of protons? u8;rhrmffha.5r :b w. r2ywm1

  An atomic nucleus has9b4ye0e g jcyylp6.h*iunp/4 a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separage n-a,rm;qcq inhh (k h2/7v:ted by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force bhah,:hq rgc/(n; 2q7ive-mk netween them?

  A 1.0-C charge is 15 m from a second charge, and the force betwegr-.7k5-ih3xeryob 2;ep w b cen them is 1.0 N. What is the magnitude of the sek ;y x. 3 p-7owhcriee2gb5-brcond charge?

  Two 1.0-C charges have a force b +w8hbnq(+ db(vxfe uw3,e t7fetween them of 1.0 N. How far apart are they?

  The force between a e (1sts27wm 6gauag*1hwli )v$30 \; mC$ 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.qo8joghus8d3jst1/ x*3p-p n 0-N force. If they are moved to a n3/8- jpps*8utxdq oghj s1 o3new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are plac/erysrgp*,3p g.nw;qk iygtm;* u9 4aed 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 el wrke/r.i 3p*png; ma syq,9* 4ygutg;ectrostatic force which acts on the charge at the origin?

  Three point charges are placed on thuv /p yg0wp;1z1rlfbaj i-8zoyo/ *x3e 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 o z3i f*1 /x- ay08glprbyjwou/vzp1; 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 ra: *xte+wi p2*c(sqylocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.:pt2e+*qxsry*i ac(w 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 j(,pn; zmr jl ,s7klv2center 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. l 2sm7k(r pjv ,;,nlzj 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 9+/y2mm wq-c jv.)sg q.qemkty qx.ba(vq.,l, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force ontg +jq.q s v,92v)cexqmy. ma w.-/y (m.kqbql the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, *x8risz*/yn 89m tic 9:iqvgy0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the v8sq:z /ng **yicti89m yirx95.0 nC charge?

  Three identical charges of 3.0 mC are placed at theuhycno (wyq37une+-t*qv * b9w(vf1axw, h3q vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force7utx1(+,nvehcq*3hqqv yn3wu-*y9( a ow b wf which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At ww xmd;hz;e* je( dpc1;hat point, on a line between thp;c(zh*;wxm1e ;jdd ee two charges, would it be possible 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 charge is /r vktk7 63syjat x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zero?/jrks vy763k t

  Charge +2q is placedz9./jpp8l h .l pido)q at the origin and charge -q is placed at x = 2a. Where can a third positivej.q9h.ll 8d zpp/oi)p charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A tota+b7 s k)us8vs)ie xx(gl 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 fixg hreui;,; c3ped proton some distance above it. How far above the electron is ti;;,r hg3peuche proton?

  Two 0.20-g metal spheres are hung from a common point by no : d2gywo,szu)nconducting threads which are 30o uzdygw)2 ,:s cm long. 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 okkyxo p w9k l1f://ag8f +40e. What is the magnitude of the electric field at a di/: kk8gfy9lpa1o/xw kstance of 1.0 m from the nucleus?

  What are the magnitude and direction of the elvl +4jv1ar7l7dqs6m h ectric field at a distance of 1.50 h6msqv d1+arj7l lv74 m from a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude nd;09wr4e:ohydz 4kp0k mnxi47-9upwd bi5 uof the electric field at the location of the:nz -9yd5xidu u74ko wp004nd 9er4 mkiph w;b test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of the piz x4 6975 jqigan5ffelectric fnffxq 6gi ia975zp5j4 ield?

  A 5.0-C charge is 10 m from a small test charge. What is the magniu66hboe srw/xq5pqz*)nd;)t tude of the force experienced by a 1.0 nC charge pld);5ubzqoq/6 r6* )pxhe n stwaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance fefq-b/ba3v142 iwr k of 4.0 m. What is the electric field at vk-w4b 1 qbi/reff3a2 a point midway between the two charges?

  A 5.0-mC charge is placed gfk3z(c0bhnc5 qq 37nat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fiqkn(hq70 gc3 5nfbc3 zeld at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC cy c ,jk-)tfxs*4e (mup9aegl- harge is placed at the a,pc s-e-lxe g jy t)f9(kum*450 cm mark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mpn )fo.2 h:e9y j+vl++ fpzthbC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the po)fp thhzo2n+bp+ :e.9ljf +vyint midway between them?

  Three 3.0 mC charges dka:q ; fvhzv/6,day1cx7 (xrare at the three corners of a square of side 0.50 m. The last corner iyx,:1ah76(d/kvzf d vq acx r;s occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1ymk;e+2qv mytuf0*8 5x,o1vjoj q5vs .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); -3.0 mC at (0, 1). What is the magnitude of the electric field ,vfo ;m158o*jvsxt2q y5qej kyv+m0uat the square's center?

  A force of 10 N acts on a charge of 5.0 mC wh2335h/rqgl8r tbjlo0oeor n :en it is placed in a uniform electric field. What is the magne3njhqorl0g 2o/rr b5l:o38 t itude of this electric field?

  A particle with a charge of 4.0k1fc 1xiazg-8g 1iw(k 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 isfir s k;rwl)*w2b dtw.t0)zx* placed in an electric field of 6000 N/C pointing downward. What charge must be placed x*) z)2tdwb;wt0isl rfr.kw * on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plae3vd/vtb -qj *u fo:r+ )ibxc9ced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric fiec d v3bro)-xj+qi e*f:utb /v9ld?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the mag0nnj t -m,( cvh:25s qoz:acvhnitude of the electric 0qch-5zcon :mnv(:hv2a s, tjfield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm cargm(7 v- y ll2;;byxz( qpp;upq8lma-n ries a charge of 3.0 mC. What is the electric field 6.0 cm from the centq ;m 8;(;yynlmlpax uzp7(ql-gv2-b per of the sphere?