State the law of conservatpi2wx6xk 9 5 ,ji4pfjoion of electric charge.

  Is it possible for two negative charges to attract each mp*e2 frnb:4lother?

  Is it possible for a positive and a negative charge toz;pylb;iqv8;o lvkw7 s, dhs84 *7feb attract each other?

  A glass rod is rubbed with a piece of silk. During the 3 v5( l8zzt+p1.luk.gvarfco process the glass rod acquires a positive charge and the ol v. a8ztvf l.pr(czk g135u+silk

  A proton carries a

  The model of the ato1 hpvsvm :)3mkm shows a

  A neutral atom always has47bkt7kkoomzt4- j prb 7y tm1c01)p a

  An atom has more electrons than protons. The atom iat uf -he) i/fnyu:f9t:yzgeu4 u8;.n s

  Materials in which the electrons are bound very tightly to the nuclei)s f 7i ps3k;ixdid3-ag 0hvz* are referreidp; ki*v0zfa)-h3s3dgs7ix d to as

  Materials in which the electrons are bound very loosely tfe-qwvw itlkp69u l87gb(p .7o the nuclei and can move about freely within the material are referp t9. ev (wpkf7lw8iqg -lb76ured to as

  A negatively charged rod is brou hpx04 yzkq(1ct rc/z,ght near one end of an uncharged metal bar. The end x(/t1 hryq4kc p czz0,of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is j c,.wc;*an y-cwhj n*neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which sta.w*cc; w-*nyjnc j ah,tement is correct?

  How can a negatively chargv l,4dpb6h vp 7it,,lexq(x0xed rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a positorktkjg +:7 c h4emf;+ively charged glas +mk 7r ;ftgo:e4h+jkcs rod. The electroscope

  An originally neutral electroscope is grounded bri0fkdo.ifc98 c efly while a positively charged glass rod i0odk c8fc 9fi.s held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate.f fm k;*ad*h.h Then a negative object is brought near the electroscope, but doeahfmf* *.h;dks not touch it. What happens to the leaves?

  A large negatively charged 5l:3c5 djkz cr:uxq *eobject is placed on an insulated table. A neutral metallic ba 3:5qdez5 u*:lrkxcjcll 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. What is the final charge on each ball?

  Charge is

  What are the units of the r),mr :6jhh vet.)fyo:nz zh. Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is largef bm ,a4)roh (e67hhiwr in magni i46wa, hbm)(h7forhetude than the second charge.

  Sphere A carries a net charge and sphere Bnur p 9og 77g.ei.8kaw*g7ncu is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic forcegwg7.9 *n8ai. renk po7cuug7 between them?

  Two charged objects attract each other with a certain force. Ifqc +q,qipoe8cdk85kd szs1pj., i/)o the charges on both objects are doubled with no 8sz1k,.q oeq/ki, cdoq sip8 d 5)pc+jchange in separation, the force between them

  Two charges are separated by a distance diqokk zv3iwv5u((a:j * ; ao)h and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual forces owoav:3k)5ikhqz(;*( ajuvi?

  Two charged objects attract each ot) u4bq wji/2j+cy3pb wher with a force F. What happens to the force4bj qc+2uyb ) /p3wwij 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 to

  An electron and a proton are separatkp pl92. tnyo3ed by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first elo9.lp23 pn yktectron?

  An electron and a proton are separated by a distance of 1.0 m. What b0n ;ty7 y 5evu.ngz9ohappens to the magnnge0v7t5n;b o9 uz.yyitude 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 of 1.0 m. What happen ye6byr gs s7:mpj2x81hfi2; e4 /kidcs to the size of the force on the proton if4y/6:msc2 y7eb sj xhir2 fig1 epk8d; the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the o-obk1n) j.gjcenter 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 charbn)1.ojogk -j ges 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 p 0wrfidl8ca83laced at the centroid 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 thelci3r8 a f0wd8 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 isf h6;f oxbw6,g not a vector?

  At twice the distance from a point charge, thet(dndmb m4)j4:u q iy7 strength of the electric field

  Is it possible to have a clvggu51*(7 yl4l asfzero electric field value between a negative and positiv4 7*ag y1ls(lf5uclvg e charge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positivi za(o52tc0jve charges along the line joining the two0zaj 2i5vt c(o charges?

  Electric field lines near psitive point0kf db5+qm xd9 charges

  The electric field sh.0;9f+yk:xpx 5aznsmwvut7zd x9d q 9own

  Can electric field lines intersect in frdc:,3y 9gdynz xp5eq8ee space?

  A solid block of metal in electrostatic equilibriumr1a z, , .9p*h(pokfpze3jhjw is placed in a uniform electric field. Give a statement concerning the electric field in the blockj,,.3(za fw1hkojp phe*zp9 r 's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are eact/ -ik: ek*u,e;zy mbqh given tb-ek z mu;qkiy/e: ,*the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests o*avt 3mb u-t9vn a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surf v*3tuv9tab-m ace?

  If a conductor is in electrostatic equilibrium ne(v *ae 3nbv.2hny0o+r:yc+q wxbfks (ar an electric charge

  A positive point charge is enclosed in a hollow met+ o0k1zhli u(nwsv6 l j3cg(zxim8,n5allic sphere that is grounded. As compared to thvn(z30h s jwxzl+8ii l5(g 6 ok1ncmu,e case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equilibi; 6i )tkt20,be5l. tvhygdbn rium.

State Gauss's law.

  The charge carried by one e2:f1a1i kw 57wcfn gvelectron 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. How many more shjthm9 29yh.q5q jf7protons than electrons does this p9mhth79 j. 2qqyfsj5 hiece of plastic have?

  What is the charge on 1 kg vl*nizba ;/y9 zho, .g bbjkdujd3vi*f8 9 o10of protons?

  An atomic nucleus hasv +pfhl-homfg;g t37), xlww6 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, halb6edm6h+zf e7 r-4b lve charge values of 2.0 and -4.0 mC, respectively. What is the mer-+ z6e dbmf64lbh 7lagnitude of the electric force between them?

  A 1.0-C charge is 15 m from a setsrpnaxs5 mp(v;67 e- cond charge, and the force between them is 1.0 N. What is the magnitude of tx p-v 7;(sp smnt5ear6he second charge?

  Two 1.0-C charges have a force betw j 4: q3icpk1j.tqsnm+z-*u sneen them of 1.0 N. How far apart are they?

  The force between a xv7:owewmxb.2izmp j m(o ,g( mn,e88 $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experienced4m-0f kjocr1zkiqyt3 g: :j: a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electr :go04k3tk1fjyc:dr- im qzj:ic force between them?

  Three identical point charges of 2.0 mC are placed on the3we do(sg8o/ c 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 /o(s3w8c eodgthe magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on h-s0pda3m35j m ,tvr-n q9qjc the 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 at t5 j9nhc p3qqta,03s vdrm --jmhe 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 y rfi6li k;pzr ,6:hkkrie6p) c9 c1jq,if8+wmC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the forc66; cc,kr1+,hk9iprkj iq)ifey 8lw : pr z6ife on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point chw;s7jtu1/dwp arge of -Q is placed at thew17us /dptw ;j 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 corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is s);:4t . zekkft w;zkfat (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net .; fkkf twz ze:k)s4t;force on the 5.0 nC charge?

  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 ( /yj6 5(92qeb)mpey*h w 0hixwfqpufat (0, 0). What is tjhb em5)wy(9 (ppef0x6i*f qqyw2u h/he direction of the net force on the 5.0 nC charge?

  Three identical charge,bj13 :js2fphwpk 2r( kxcux8-)epy ds of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of rbjhkep)xc :wsy3(,xu8 d 2- pf1j2pkthe electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what p2ozq* , qebp7ih tae57oint, on a line ao2iqphzq5 t e,eb7* 7between 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 c hg6oho-i3*1s- pcfaat x = 4.0 m. Where on the x-axis can a third charge be placed so the net force3ishgp cf* a1cooh--6 on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where cancpzq .,y i.db xs:f3(e a third positive charge +q be placed so that thxcesdzb( y q,3. f.:ipe force on it is zero?

  A copper penny has a mass of 3.0 g. aebq* tv*d wl1l:ngf bw ).y58A 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 agaie+j:y0n rnp/u jb-f*3gdjs ;dnst the force of gravity by the attraction of a fixed proton some distance above it. /r-nyes+dnj p0*b;j gjf du: 3How far above the electron is the proton?

  Two 0.20-g metal spheres are hr1mlgmnb3 6u4v2b vg9ung 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 betwmvv 9rmb 1lg4n23 u6gbeen the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnzuq4nyn+qtw4a,6pu/cz o71sp8w7d situde of the electric field dtp, nn y47aqqwpc8u6 4w7szo 1+zus/at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a d6yg nwan(z t;q a)rx74gjnh5op.l,d; istance of 1.50 m from a 50.0-n,;(ajxao h l)d7n 5grn;pw6 gqztyn4.C charge?

  A 5.0-C charge is 10 m from a small test )yd 7atlzsfde. 1)mg+ charge. What is the magnitude of the electric field at the los1my))d+ dl7 az etgf.cation of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction+ 4nt x n*mlhi+7u)cqz of the electric field? m4nxzh+ l*n+q)ti7uc

  A 5.0-C charge is 10 m from a small test charge. Wh kl5h+lv shf*zbq9ejb0;(k 1iat is the magnitude of the force exh5b(k *fsvj0kezq 1;+ lbh 9liperienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separatedc8 dt2sn, a79jyej--p90i8z peyk qyz by a distance of 4.0 m. Whae 9c078y-jezdsz2y8ykpiapj9 nt,q- t 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/rs17/ 8hk oma gmeh)u a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30a sk1gro)ue/ h7m/mh8 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick a k,e.oix )iz4e3aupk8 nd a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electri.izok,k )px ea43uei8c field zero?

  Two point charges of +3.0 sr wzm r9598fvku-9zn 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 between thrr9 msw 5k98-9zvnzufem?

  Three 3.0 mC charges are at the three corners of a square of yh6kqz *,go, - ev pvorvjb)-+side 0.50 m. The l*v+ egjbo--6 k )h r,pvyzo,vqast corner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are u+syajr/g9h-q2jwj - 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 thu-hrs /qjw 2j9gyaj-+e electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC w1y2my1d 3pxr uhen it is placed in a uniform electric field. What is the magnitude of yrdu1y32x1 mpthis electric field?

  A particle with a charge (a da,nsy-aga, n+l4vq fg 4*4-hxs jdof 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 mfhr7l +p6ogl gf i41kic*qk-9sk r:o+ ass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to b s+llrq4k7:+ri1kf ci h-6opkofg*9ge suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed k29uq by3fr: t , dia2afn8xn-inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and ra8qxta2 ynf 9i,un3db :f-2kdirection of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magnitlppsif5:h-z7jyy ) m 5,c )1uj)uvjx tude of the electric field 5.0 cm from the sphere's surf xpz 51,c-jsif :pujhl))yv5y)tj7m u ace?

  A metal sphere of radius 2.0 cm cargoi fg+ 0; ml :e;h:mckqh:+fwries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sph flfqm+hi:: em o ;wk+hg;0:gcere?