State the law of conservation of electric chaf10kw0kud.1iw+e ww gly3 )c0re mx t3rge.

  Is it possible for two negative charges to attract each . 7w)or5qox()u:wr5nocy lnw other?

  Is it possible for a positive and a negative charge to attraej90-t mti:oxt x7x j(ct each other?

  A glass rod is rubbed with a piece of st/n(aqzc hg0j 6 jk4i;ilk. During the process the glass rod acquires a posit j 4a6ghcjqiz k(0n;/tive charge and the silk

  A proton carries a

  The model of the atom shows dc2z jm9jnn7eko 4 7ek(6-dz.va 6gzba

  A neutral atom always has) e4r7 tm6 /ryzz+ywdl

  An atom has more elecv0v61jj /wncq1cpk s7trons than protons. The atom is

  Materials in which theh9z:emw vk *)o electrons are bound very tightly to the nuclei are referred to :k*9 v mwezoh)as

  Materials in which the electrons are bound j-r,*02k5pe5tl-0ov w tn .qw96xso r qhmqkh very loosely to the nuclei and can mosw tho.ohx5- l09q0w *rq56 t,ke kn-vmq2rjpve about freely within the material are referred to as

  A negatively charged rod is brought near one end ov7(fvjxv:l ae 6iu( g9f an uncharged metal bar. The e9:ivljv( fv7 xg(a6u end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a n slr7mm- m1 ndgl-o9v,et positive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wireslmm9g 71, -mrldn-ov that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electr(dpy awl5;1 3d +mpkm: ea3vlwoscope positively?

  An originally neutral electrosc.k .lm 7b6fuq(ygekx+ope is briefly touched with a positively charged .mexlgbq+ yk7 .u6fk( glass rod. The electroscope

  An originally neutral electroscope is gropgz,3r zgx1l(unded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the31 lzp(ggzxr, electroscope

  A positive object touches a neutral electroscope, and the leavu ut ;(t)5tw s+slk5zres separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?twu55(szsl trtk+u;)

  A large negatively charged object is placed on an insulated tabzfcn-wb 4gj4s2nr7k e2 *y)kqle. A neutral metallic ballq72gknf*e2rwc y4b4-j nzs)k 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 Coulomb cop* zi q)run;k0fk j(t7nstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a dia1 c wp*/fkjc.h-pd 0ustance d. The first charge is larger in magnitude than the sfk/u-0wcajd1* cpp .hecond charge.

  Sphere A carries a net charge and sphere B is neutral. They xsl s:../fj,k : tnhktsf 69ukp4 nr/fare placed near each otherlsr,/tt:pf9sf4k/hsk n6 nj .u. xf:k on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attiex),qdlum ;8 v63tkd ract each other with a certain force. If the charges on both )d3tlvx86i mk,edq;uobjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive x7ub/u2 idp s7forces of F on pb / 77usuidx2each 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 happens to mij9. z3iatctb:p .1/bbmk h9the force between them if one charge is doubled, the other charge is tripled, and the separation distance bek3:bhmajb.b1z/ t9mp .t i9i ctween 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 d(i6jmuyf55 / k/ dac (6h sga/twhc+quistance of 1.0 m. What happens to the magnitude of the force on ta5gh /cd+k6s( c6j ui/th5(/wfmqa uyhe proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What ha g8mjw+j40 efeppens to the magnitude of the force on the first electron if a sm ejwf8 0jg+4eecond electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. Wha7q uu2 l+6l8sklxl lv;t happens to the size of the force on the proton if the electrols llxlq7u+l68;2uk v n is moved 0.50 m closer to the proton?

  A point charge of +Q is placerp( .ol h:jz:e/nb/(wvc4 c urd 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 o.cv: o4l hbn p//e(r:ucwr(zjn the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral trianuzd+w8nwuyz -h ct3:8gle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic fn 3uduwytz-8z+h:w8 c orce 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 i9/ea 2q ut7yrls not a vector?

  At twice the distance from a point charge, the strength of the electrical.pighqbh; yc;t(06 field

  Is it possible to have a zero electric field value 8s9+xexfdv4j between a negative and positive49dx+sxj8ev f charge along the line joining the two charges?

  Is it possible to have a z*jt9qkq1p ukffnp97a l/7 qq 6ero electric field value between two positive charges along the la7p 96lnpf 9k1/* tkqfqu7qqjine joining the two charges?

  Electric field lines nemq5,oxd yl(7)g1 ble var psitive point charges

  The electric field shpj*hy:a(cs+i own

  Can electric field li m/yr ker+1s fik6.q7bnes intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform y:j ze84eys0pelectric field. Give a statement concerning the electric field in the block's iy4ze:sj e08y pnterior.

  If a solid metal sphere and a hollow metal sphere of equaoohj :;rye5a0 l diameters are each given the same charge, the electric field (E) midw0oho: j;eyr a5ay between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniform f;g6l4fj) u,q lszyp -+( qgxielzsji4-fg6 uyp(xlql g)q f +,;ectric field is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an elect 8buwjm(lfq 1-* m8ymeric charge

  A positive point charge is enclosed in a hols0 rvp0/*g zlhlow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow spher0spvl /*hr0z ge has

State three properties of coh:4 w/t3;hwk-aiob2g mzq zk2nductors in static equilibrium.

State Gauss's law.

  The charge carried by one ecn(olww1 j pzr,muo5/b 9+qc9lectron 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 7cm;; cp)vpj +wetuu8. How many more protons than electrons does this piecepumuj;)t 8p c+ 7c;vew of plastic have?

  What is the charge on 1 kg of pror 8qh-jli:3ecwi , dx(tons?

  An atomic nucleus has a charge -vh( ag+w rq0*lsolq-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, have charge values of 2.6*eyq8 i wmu/l0 and -4.0 mC, respectively. What is the magnitude of the/e 8wu6iylm* q electric force between them?

  A 1.0-C charge is 15 m from a second charge, a obw. a.sa0w4knd the force between them is 1.0 N. What is the magnitaa.ks0o4b ww. ude of the second charge?

  Two 1.0-C charges have a force between them of 7vcpmb+ljs/x7k5d)e 4hmc 8a 1.0 N. How far apart are they?

  The force between a ms)ax;m z c6g)d en9/y$30 \; mC$ 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 forcsl2 +j .wc 1:zibqcm*)3 f ehrx8jb8aje. If they are moved to a new separation of 8.0 cm, w+ j*j1b8q: 8)s3 .b femzlacc2jrh ixwhat is the electric force between them?

  Three identical point charges of 2.0 mC arq (4)jkdh;o dle placed on the x-axis. The first charge is at the ojdh) ;d l4qko(rigin, 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 origin?

  Three point charges are placed onaz itq/a.(q.lyr8 yao :l+a:t 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 the 100 cm mark. What are the magnitud: :ya.qa+ l/tz8 al(raiy.oqte and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges arc1klxd7 , mc:xe located at the following positions: Q1 = 2.00 mC 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 7,kcmdcx :lx 1force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point ci;4q gbwv j2i-y7mp a2harge 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 agbi;i-7pyqa 42jv2wmt the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC i3t :r7(/:ow:7lyoc iiajwtcws at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 jo::a7c(wo3ltic iw/7:w t rynC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1 b,)ex5j x nbg5nruh,7.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the n)hub xx5bnnej,,5gr7 et force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices swaj - fc/l+:j wpq+b6of an equilateral triangle which measures 30 cm on a sidejsq/p6wf+-a +:c ljw b. 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 separated by 3.0 m. At what9 )y 4g0fvsfnbfwp/l3 i :2lyc point, on a line between the two charges, would it be possible to place a charge of -Q such that the elfpy) 0f4:v blwf n9scyli3g/2ectrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge iss, 8( b*ug,wrvm gmct2 at x = 4.0 m. Where on the x-axism,gw(but8v,* rm2gcs can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed atp.jil7y wy4j3 x = 2a. Where can a third positive charge +q be placed so7jl4 yiyp j3.w that the force on it is zero?

  A copper penny has a mass of 3. k,9n o781k rswy kyh94adyib60 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 1*v9 ozs0fjc lattraction of a fixed proton some distance above it. How far above the electron is the protoflzcv 0oj1s 9*n?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads wpd-k6p vmu 2(2.)es 2jf zqpaihich are 30 cm long. Both are given identical charges, and the electrostatic repulss k me2(2izp6fp2vd.j)q up-aion 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 of +40e. What is the magnitud *y(proas2gn reb-2p *e of the electric field at a distance *2yg brae r2on(pp-*sof 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field awy3lj:cob6j bk 47pd-;nj7dpt a distance of 1.50 m from a 5077-4p ; wjod p3nl6yck:jbjbd.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magniih) hj 3 :v2)+fyhbjeitude of the electric field at the location of th v ):2yih3h+j ehb)jife test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction ofbudt q 0/jst7 5gy/ 1g9c7vbeo the e9/u jy e57tos/vgqd 7gcb01t blectric field?

  A 5.0-C charge is 10 m from a small test charge. What is tx,i*a e6rfdl 2he magnitude of the force experienced by a 1.0 nC charge placed at the location of the test chargl e62 ax*f,dire?

  Two point charges each have a value d07upf3t va7h of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two chartf dhp377 av0uges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter t9xo h22t(p dcz4xp,1tx- pzistick and a -4.0 mC charge is placed at the 50 cm ho,2p 1-xcxtz 9(zdp 2ttpi x4mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at tjg7b 6v ozpdqa7a-/67jhd gh3 ;bpw1qhe 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 5qg3hop dwpb vq 67-/ajb h jzad7;g7160 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 mC are placed at x = 0 and xeyub1e h3(3b q = 0.20 m. What is the magnitude of the electric field at the point midw1bu(yeqb3h3 eay between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.z flh./ fc(y1e3fub+dk *z1c cz ua7f150 m. The last corner is occupied by a -3.0 mC .c1e7fahdb/fuy *fzf1kcu 3z1c+z (lcharge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m-u0h oig;f+kw 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 magnitudoi -;fu+ khgw0e 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 placed in a uni zq:tqr8(,theform electrq,h8t(qt er: zic field. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a ipa) 87puuml5mass 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 elect.f2py d /u3 jsrce5e:h20 nfrpric field of 6000 N/C pointing downward. What charge mu 0 u32h:es r cjf/.fdery2p5pnst be placed on the ball for it to be suspended?

  A foam ball of mass 0.1im kn8k7 *ci*j50 g carries a charge of -2.00 nC. The ball is placed inside a uniform electrim kk8ic*i7 jn*c 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 c)9 jb vymks8ks(jn4o+i5 f r1+ioxb) m7weg3narries a charge of +2.0 mC. What is the magnitude vignosj1mkyjwmko) 3 i4 e5bn +(87rx b) 9sf+of the electric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 ci x o7 c3k tse*,bp))l:*axhurm carries a charge of 3.0 mC. What is the electric field 6.0 cm f:, eol* i rxtab7*)u hxcsp3k)rom the center of the sphere?