State the law of conservation ox0w4ymn5hz 1(e4by csf electric charge.

  Is it possible for two negative charges to ahrv9tox ) x*);nsp0mn ttract each other?

  Is it possible for a posits36yy4rkkyowxj d:z wl8( 9*w ive and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the glass8fjly8c: qhd bn1vqw+w))tb4 rod acquires a positive charge )w48bjvwq) q c8n :h1ydbf lt+and the silk

  A proton carries a

  The model of the atom syovhc60 p3s,j k3o.dv hows a

  A neutral atom always(2ka:2cgc;sdv d18yc(gq sy n has

  An atom has more electr-b wnbddn4.(el yur6 +ons than protons. The atom is

  Materials in which the ele a0z7/fiw yb,se 2b5alctrons are bound very tightly to the nuclei are referred to aiz ,2a5lsba7 /e0 wfybs

  Materials in which the elh1zu m6xnhl+7 e2l;eiectrons are bound very loosely to the nuclei and can move about fre+76m ie;nhz1 l2hx lueely within the material are referred to as

  A negatively charged rod is brought near one end of an n0q2trm8. 0p cyzyxkvm8sd yn 7.0x7buncharged metal bar. The end of the metal bar farthest from the charged rod will be chav20ymymrq k. 7.b08xp tnxd87cnsz0yrged

  Sphere A carries a net positive charge, and sphere B is neut3xzwb j* mc8.khn qd.0gsifr, 2*upm*rt-dj8 ral. They are placed near each other mt j-rx*. j0c*,u*wzgnfhsi88 k2d.dbrm3pq on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod chs-*sj8)bxih zx3y qa +arge an electroscope positively?

  An originally neutral electroscd( k v8,0ksw .w0rcqpcdbg:t qv,;u; eope is briefly touched with a positively charged glass rod. The electroscopegvdrw0bd kk0 ;q .;t q:(p8csuvc,we,

  An originally neutral electrojgaj63lw :ccj gwr+(2 scope is grounded briefly while a positively charged glass rod is held near it. Af:3 ww2(g ljjc+cg6rajter the glass rod is removed, the electroscope

  A positive object touches a nz7wz byw3m)r7: * j5u/w z0 3zbiyrqdmeutral electroscope, and the leaves separate. Then a negative object is brought near the elw 5w rw 30bm3j *)ymrzy :z7bidquzz7/ectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is plr;1 dqii18ceqy30t05 4 xxh avnku2hpaced 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 negq1i1c83xyvr p04tha;hkie52 q0n xduative 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 tp ;-cazwcjf1dny6 m sy82sb7v 9*2uwzhe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. b) nn5vw *8gc (btq7ar3,vl*azbxi0 mThe first charge is larger in magnitude than the second charb05t*bqc n,v3gmwi 7)a8 x z vlrnb(*age.

  Sphere A carries a net charge and sphere B is neutralimc+6, vb7e 8m4wyz(ug 4cgrf,i7hhaj5 u s* w. They are placed near each other on an insulated table. Which statement best descr* zi(meau h y47gcir5w4bv8+mg6,chw7ufj,sibes the electrostatic force between them?

  Two charged objects attract each other with a certain force. 0k1 gqj1 ov 6bc fgu+/x5hrv3c If the charges on both objects are doubled with no change in separation, the force betweef5b6c h 0r1qo+vcj/ g1xkgvu3n them

  Two charges are separated by a distance d and exert mutual attracti t, t)3 34etn;xkbllkdve forces of F on each other. If te 33k)tnl,tdltk b4x ;he 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 happens a qt;xv7k+4buto the force between them if one charge is doubled, the oth4 ukvqbx7+at;er charge is tripled, 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 separated by a distance of 1.0 m. What happe /*kghs suuv a9a4au:vh(i3*ens to the magnitude of the force on the proton if a second electron is placed next to the first electron39haa (*vk4is/u *g :evauhus?

  An electron and a proton are separated by a distance of 1.0 m. What happensoo hdq -1z6p+s to the magnitude of the force on the first electron if a second oo - qphd61+szelectron is placed next to the proton?

  An electron and a proton art96)siyy k9.me bg;gke separated by a distance of 1.0 m. What happens to the size og ykgi9keyt .s6m9b;)f the force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. Wu2-yb l h1sn *fmqk)r+hen 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 thkq -urf)bn+ysh*2m 1le 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 of an equilateral triangle. Wheno:y u94gurpfww (wa 7- a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0(wuw awo9:ypguf - 74r 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 vecto/cs7gwjg5i 6 d)yz7pz;) nhj kr?

  At twice the distance from a point charge, the strength of the e,c4vq w3p/c melectric field

  Is it possible to have a zero electric field value between a negative and posit3vbue zo(58abi vb5(8uze 3oabve charge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positirca6g)yak q7 ju (f:lpjz 6f+6ve charges along the line joining the two charges?g f:ryjuk z 66c lj+7p)faa6(q

  Electric field lines ne my aki(fbc, k*4hl))x4vo uc/ar psitive point charges

  The electric field sho:u*wxt7gj eak -+ni .iwn

  Can electric field lines intersect in free sp gnuy5zh 2wwnp3 r*xg(d0 m61pace?

  A solid block of metal in electrostatic equilibrium is placed in a uniformj8d dq0m1p jq; electric field. Give a statement concerning the electric field in the 8;djq0pm1q jdblock's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are i )e/p9ne cr+meach given the same charge, the electric field (E) ei +prn9cme)/ midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regionp ty141/i mkgy where a uniform electric field is m yktp4/yg1 1idirected straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibec db:sc gvk fca) 9hzrh*.19 2x9pln5rium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that6gb)fhy.g )zn4h zih0a3 h )ou is grounded. As compared to the case without the hollow sphere, the electrica4ozhzy h.h)gig0n) h6 u 3fb) field at a point directly above the hollow sphere has

State three properties of conductors in static equilibri khtf- p23p4aeum.

State Gauss's law.

  The charge carried by one electr* xlytd ynuy/,.eywm8q 0s9aw r z./b,on 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 haszqx8d* u(:g8t5tty )eol3 gcd a net charge of +2.00 mC. How many more protons than electrons does thi 3gt(e tudl*xzdy:)oqg 5ct88 s piece of plastic have?

  What is the charge on 1 kgac4x 8pm4zbh + ra5uz; of protons?

  An atomic nucleus has a charge of xo2.d1vx ymz.a2af2c .pf0cj $+40e$. 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 values of 2.0 and((-0 1ezkp,zo+mfagy*x efi 1w x sws, -4.0 mC, respectively. What is the magnitude of the ,pxx1(sw0ak1zz* oy(s+ef fmigw , e-electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 w7pe3gsv z(* kN. What is thzwpk7(s3*ve g e magnitude of the second charge?

  Two 1.0-C charges have a force b;krta9h 1 ql:(w:,mr7e 2uk k 3kokoxzetween them of 1.0 N. How far apart are they?

  The force between a o/ryhgne0s*td*u; i2$30 \; mC$ 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 they ahr() /e dia*hi8hp.t+ xhngc;re moved to a new separation h;a*xit/ig8 hde(p h+r h )n.cof 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 8uleu7 15 n1+ eluvgcgk y:nd)charge is at the origin, the second to t5u1eg8n k)vcu+1ul ne 7 gyl:dhe 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 origin?

  Three point charges are placed on the x-axis. 0o-h pm, s,x c,fy7r47gocmgx 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 at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts y 7o,mfh-oxs g 4pm,ccg,r0x7on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at wl if+ ug+s56qx = 1.w+ls i+gqu 65f00 m; 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 odfs 27i8( hnsuf 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( fui7hnd82s s 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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0,dt faz /luuy 8v.+p9vdkf( 926m i8oqh 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnituotqf8 9iky+du628vuh .p(a9 mzfd/ lvde of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 (ol;dlse+4 , :hh8zkzcnc+vo= -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the llecz:4h+(o, 8vh nz+ ;d cksonet force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilatera)q/lnm;j5hrb3yb c (sl triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of thhs q y)bl(nc;5m3r bj/e charges?

  Consider point charges of +Q and +4Q, whil,sax3a t/k7jxj0 ymr) d*vv ,ch are separated by 3.0 m. At what point, on a l) d*/3ajs,mj, 0rvxlxya tv 7kine between the 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 at x 5k5dx xsrv9h 8= 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zs9 xd5 k8xrh5vero?

  Charge +2q is placed at the origin and cqw t4d(s)4o s*4s/dkns e;extharge -q is placed at x = 2a. Where can a third posit ;kstd44qnse4d() t *ows/xes ive charge +q be placed so that the force on it is zero?

  A copper penny has a mass (fo: ige) 4 *9ropsofmof 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 attract 1s5l1,dapnhm c,:bs kion of a fixed proton some distance above it. How far above the elehlp c,k5snba:s1 ,1m dctron is the proton?

  Two 0.20-g metal spheres are hung from a corc- vzzlyq:b3* un:td 7hwz,/ mmon point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until wqhn* z 7z,l /zbdr:-cv:ut3ythe angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e.(rvf(c*w du(3xxr)-p qy l;ls What is the magnitude of the electric field at a distance of 1.0 m from the nucleu xusryfrp)(wlx q*(;-cv3 (dls?

  What are the magnitude and direction of the electric f y h-+no6orui.ohe-a0p5l ,iqield at a distance of 1.50 m from a 50.0p-6.o qy+i0-ioar5h,neuh o l-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What i,hrvc) .rzel1s the magnitude of the eh) c,zlr. 1rvelectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direct 7t;inno:5gme ion of the electrim;en5o7nit g: c field?

  A 5.0-C charge is 10 m from a sxv be9wp+ rze;/f6+d)uig+ro mall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?)g+;i orw u69d+v+refxebp/z

  Two point charges each have a value of 1 9nk6xahp1ks ( dg9qr3.0 C and are separated by a distance of 4.0 m. What is the electric field at rq9gd19( nak1 x sh6kpa point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stic9-6pdf n15qm cfajq+ro f as-7k and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the mr79-ancp+1 d f f-jqo5af6qs30 cm mark?

  A 5.0-mC charge is placed b1892qrebzd y at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. ebyd z 92q8r1b 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 mCz31ew /z+f( w 1j gce9udubsk1 are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at thz (w1f1uks1/c3u g 9zwbedej+ e point midway between them?

  Three 3.0 mC charges are at the three cor1ozxyzp 4/ieki/fv4 v/id3haj 5:g 2e ners of a square of side 0.50 m. The last corner is occupied by a -3.0 m ezv ejxgp d42za3/4ivki:1f 5oyhi //C charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 y)wxf gn0/eoq1gz4hc 9l t29 jm 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, 14 l9hxt9/q ygew0z gco12n fj)). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5qd-8x y 8rsa5w.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric fi -ayw8s dq5rx8eld?

  A particle with a charge o+ous yx-n6 97w ,if5i,ohvai ef 4.0 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 N/C pbaluxe3h usjk 4+ h:5e5hr, -lointing bl 5 xe5k 4s:3heauhj,- u+rlhdownward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The(+eiu m0nojpx(jw u56 ball is placed inside a uniform electric fie+u jne j0(iwux5p o(6mld, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radiutx3 bqnpmp*,s7wt i::s 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric tq 3 xm7,::wpbsn*i ptfield 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of jsuec1pf yqj.k 23*q-3.0 mC. What is the electric field -pejqyc 3j1s.q* fu 2k6.0 cm from the center of the sphere?