State the law of conservation of electric,vy40lhh5yjg charge.

  Is it possible for two 5c)f4*wnl;x yl wmyw/ negative charges to attract each other?

  Is it possible for a positive and a ilcks+6zilmq/a 9 a9l-v d,z8negative charge to attract each other?

  A glass rod is rubbed with a piece oftcdrqggt5-3xhu to:omg 8n) r(1n/9 f silk. During the process the glass rod acquires a positive charge and the smo)rx8n:tntgfrt - c3gh dgu95 q1(o/ ilk

  A proton carries a

  The model of the atom ,1ylvs/a (23lsnj5/*qlqw7ha a fuwbshows a

  A neutral atom alway a uat+22j clhgth1)ee(rqx48va rd*; s has

  An atom has more electrons than protonvo w2hfn1,q1 es. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refbvr7 k o -54y-atbh4oierred ob4br-k-a v5 ht4oi y7to as

  Materials in which the electrons are bound very loosely to thedooy -*7s7 h/cyhj mp/ nuclei and can move about freely within the material are j-p7soyd / cho/y7h*m referred to as

  A negatively charged rod is brought near one ef1 qirdoy e/y70n;;lind of an uncharged metal bar. The end of the 1 frqeid/l;o nyiy07; metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are placvp woje17w .z g1zxr03ed near each other on an insulated table. Sphere B is briefly touched with a wire that is grou0ge3o w71j1.zpwx zvrnded. Which statement is correct?

  How can a negatively charged rod charge an electroscope ,vp+bi/9o 5x c; qbzu2g-pov xpositively?

  An originally neutral electroscope is briefly touche fbgc3x3. g-cdd with a positively charged glass rod. Th3g.bc-fgc x3de electroscope

  An originally neutral electroscope is grounded briefly while a posaw.tjne-t 4t* itively charged glass rod is held near it. Af 4tjn-a.*w ettter the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separat6 / s-*f-ecn9rlr yrzhe. Then a negative object is berhs- zc -rnf6*ly 9/rrought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated tazv8z.-xo 1r eeble. 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 negative object. At no time does eite rxov81e.- zzher ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb3dab rji emdc;q57 7m.k-;:u lrb0 yud constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge sela lf*; /rcjz.n8;mgd.5ivsrt0 .zis larger in magnitude than tl/r8g0 fs* z. ;jlzn.ie.d rva 5sm;cthe second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placqdi v:rb sg53+sg-*r2 3b/ amj/vdelned near each other on an insulated t3dbi/ql:mr2g s s+v ar53v/jd- gebn *able. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force kflphr 49 y8e7fg-7kuib,7x u. If the charges on both objects are doubled with no change ieihk4u r8-bl9, guyx7 kffp77n separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive c,n8umg eh92h forces of F on each other. If the charges are separated by a distance of d/3, what are theh9g ceu8mn 2,h new mutual forces?

  Two charged objects attract each other with a force Fwk)im:5o (wew . What happens to the force between them if one charge is doubled, the other charge is tripled, and the separatiweo)m ( 5wi:kwon 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 happens tf3 skb 2 lpjy49m ww0p3:9pketo the magnitude of the force on the proton if a second electron is plam9j3t 2b w:940flp3 ewpspk kyced next to the first electron?

  An electron and a proton are ssfjec )k ;.ve1eparated by a distance of 1.0 m. What happens to the m ef;cjs1 v)ke.agnitude 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 dist5ya 93v-rt zc1sli5m kance of 1.0 m. What happens to the size of the force on the proton if the electrstz-v yrk a5clm i3591on is moved 0.50 m closer to the proton?

  A point charge of +Q is plk (u7-9ccdce94r zwjnaced 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 the9 4nj-(w7dc cuzckr9 e net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at thl; pv (uy(kfvjra 7-a7e centroid of an equilateral triangle. When a second charge of +Q is place-f7u 7(a;pv jlrk(vyad 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 of the other vertices?

  Which of the following is n, cv(pqh*h- oxot a vector?

  At twice the distance from a point charge, the strength of the 3-z(auu t r5t; bbc zr-(n9ertelectric field

  Is it possible to have a zero electric field*7hq ko(kjd9h ,7 oa.bokh*zs value between a negative and positive charge along bj khqks,o*o(7ha k *dh9.o7zthe line joining the two charges?

  Is it possible to have a zero electric f+p b4 t hd/gb 8 qr0vklwb),65mn(twicield value between two positive charges along the line joining the two cq(cp,0t)+6bnb wv wibdhl grmk/t 58 4harges?

  Electric field lines near psitive poinq 66-bd)(a9 u-scz+wv ciidwa gx vy88t charges

  The electric field shoinm3s1 gfwcv5s .qw0.y.hs8 jp2mvh4wn

  Can electric field lines intersec dz/ f bkys*n-8+)v0f mcw*usct in free space?

  A solid block of metal in electrostatic equilibriui x tks ::+cuos0 an65c+tyc;am is placed in a uniform electric field. Give a sta:tutaxcc6soy++n ai:c 0sk 5 ;tement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters aj*kbz doa )8x2re each given the same charge, b)dao 2z*kjx8the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden ptj:3o4 9rgnjtable in a region where a uniform electric field is directed straight up 4oj jr3pgn:t9ward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equjjhei sv* 4v) pc81o.filibrium near an electric charge

  A positive point charge is enclosed in a hollow me0v;i sh2o2./d xewc9(sbf g kpr rz9c0tallic sphere that is grounded. As compared to the case without the hollow sphere, the electric f2efcsi z;rg /9 wsv(rh kp9d x0o.b0c2ield at a point directly above the hollow sphere has

State three properties of conductors in staticdhvtx4 ,) ca*c equilibrium.

State Gauss's law.

  The charge carried by onxzh+ 3ahn x ylrr;m2l*)3:ikoe 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 +2.00 mC. How many more protons tha(vgv:f/ hrm22l uw4szn electrons does this piece of plaswrzsfv (2/ 4gmh 2l:vutic have?

  What is the charge on 1 kg of prot5,tl0cc7f gj5v ;yyzkons?

  An atomic nucleus has a cy, f,i5z .m vamb ki: bslrds*jkbm0;h8: ,j3dharge 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 2.0 and -4.0 mz 4 z(jebhk8-un*xi v+C, respectively. What is the magnitude of the e*z kzej- i4+x(vuh8 nblectric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them 4luehi(1wu d*is 1.0 N. What is the magnitude of the second charge?u wlh*4de(i 1u

  Two 1.0-C charges have a force between them ofs*wju+7 g, fwt0vj w6i 1.0 N. How far apart are they?

  The force between a ozw(rlan (45 r$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exper 1zv aa/. 3.*ukzd9qftoa fjf:ilkv(7ience a 1.0-N force. If they are mov. ot9fva3:7z j ufz 1vl.fk(ak/q*adi ed 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 n+( f,ehpjh5e w ,s5qkon the x-axis. The first charge is at the origin, thfpqs55e+( e, hnkw ,jhe 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 on the x-axis. A charge46h(fhg;wax( mt,v ra of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +4.0xthg f;raa, (vm(w 64h mC 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 located at the following positionsylg1 s)a8+jaf : 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. Whatf8l+1)ay jgsa is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the centzk-t2q*dyt s/c ct)u:er 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 kd)t st2c /*zq:uytc- 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); Qawfdvqnz 6)1 gt/ft:72 = -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 on the 5.0 nCt:t g1a/q dzv7wff )n6 charge?

  Q1 = 6.0 nC is at (0.30 mz9ih+;g:fvz h lz89 gv, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at v;gv:i8+z9fl hzhz9g (0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertiewf7)jtpz(rn m,-rs46dr zq:k4nm 0 z ces of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic r-0rz dmzz6,p4 wfs r(m4k7tqn: en)j 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 poi3,( w) y-jw.btmym midnt, on a line 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?w (3yib my.wm,td-m j)

  A +3.0-C charge is at the oriw-t zq(;7mu/orsi 0duzr9v r0 uow1j1gin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis do;z11 0i/9z (uusjw wrt v7orqu0-mr 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 at x = *w :rwh vj9gwpltw+;6 2a. Where can a third positive charge +q be placed so that the force on it tpj+w9wvwlr:hg w *6; is zero?

  A copper penny has a mass of 3.0 g. A to njbp0 ulm1w23 9ieh.m sy75chtal 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 occp:-do.3f .a xog3n xf gravity by the attraction of a fixed proton :x.ogpdan x c33 .f-ocsome distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads8m/k7esgt**mv uu5qtd (j 2sz which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart(2 gm7szk uv5tmsqtu*d */e8j 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 magniapl:c31*cnz 521qqyltl 2w; p0ron o otude of the electric field at a distawl;5*o lqq 3act1p2 cn02zn:loro yp1nce of 1.0 m from the nucleus?

  What are the magnitude and direction of the elec j9ueso)m2b9 h9 5jmtytric field at a distance of 1.50 m fru)y2toj sme59b h99 jmom a 50.0-nC charge?

  A 5.0-C charge is 10 m f1fl8 vk wn+7+u)mtdsh rom a small test charge. What is the magnitude of the electric field at the l )kh+tw fd7u+vn1sm8location of the test charge?

  A 5.0-C charge is 10 m from a small j1bnpc um *7yb/-0e i)pu4yeptest charge. What is the direction of the electric-iup7yeb1upj)0/m 4nepy *cb field?

  A 5.0-C charge is 10 m from a small test charge. Whau:yswcq ss)2/t is the magnitude of the forcs2)wysq: s/uce experienced 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 se ,jz/e7j 0qujfparated by a distance of 4.0 m. What is the ele/uq ,jfz0 j7jectric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter st0p5 4r4zw4b) + n xr7srcadoadick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm dndorcp r4b)r+4x5 7za4aw 0smark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and wwpuht q tb *n(lm,*+8a -4.0 mC charge is placed at the 50 cm mark. At wha *wlb* h w,u(tt8nmq+pt 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 plae64.3 vy5drm mryarwmu887leey+e l ojc3 l63ced at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point miv3 o3y48e8y7e ryd6jc.memra+6 lu m5lerlw3 dway between them?

  Three 3.0 mC charges are at the three corners of a square o zvgqx0fez;7z,)jet6 f 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,e); ztz6zxjq07 g veuare.

  Consider a square which is 1.0 m on a side. Charges are placed at the ck0pk;unwa4zgpd0rug8h + 8 /dorners 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 at the squarpp80hgk4dg/ uzd8+w; nra 0uke's center?

  A force of 10 N acts on a charge of 5.0 mC wh+jxtn33snbf, w,o;e p en it is placed in a uniform electric field. What is the mpfo+ ,3 twxe3,jn bsn;agnitude of this electric field?

  A particle with a charge of 4.0 f/bsi jq5*sd6mC 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 f 1x6 8neqj.7)uq n9 shqcz;lran electric field of 6000 N/C pointing downward. What charj9nu7 qf. 1qzhe)rqlsx6nc; 8ge 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 ball is placed lt vo32)9mzkvinside a uniform electric field, and is suspended against the force of gravity. What are the magnitudtm2 9)3vzo vkle and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magnit3tpm*l pe3no +ude of the electric field 5.0 cm from the mtpoep+n3l *3 sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3. n2 0v/cs1sigs0 mC. What is the electric field 6.0 cm from the center ov si/ g01nc2ssf the sphere?