State the law of conservatxk8 rx5 i m7)nurqn+/sguiw4*jqz*a 9ion of electric charge.

  Is it possible for two negative charges to attrvif -5 x1jj9vb*g06o:lhb tpz act each other?

  Is it possible for a positive and a negative charge to attract each othero 2(ou9h )nmt z/1 ls5v9dowtn?

  A glass rod is rubbed with a piece of silk. During the process the glass rod ave1s0f gjtjl; );p8ln cquires a positg;sj 0fn81;t jv epl)live charge and the silk

  A proton carries a

  The model of the atom s0dfx)1 skkq*c hows a

  A neutral atom always ha322.kv( fbwae4g15brswnheb s

  An atom has more electrons than protons. The s(jzyng3pd,7ea aj6yw1 ); po atom is

  Materials in which the electronsrmw )9o pc h9pcgube7z/3cep 0kw) 7n36se*ev are bound very tightly to the nuclei are referred to an*c)ovpws99h 3pec7 7k 3zu0eper6e)/g c bmws

  Materials in which the electrons are bound very loosely to the nuclei and canlmy y,h8y5bi mr* a36r move about freely within the material are ref 3r mlhb,5aimry 8*6yyerred to as

  A negatively charged rod is brought near one end .axcqa5h4eect8f 2 h /of an uncharged metal bar. The end of the metal bar fartheeac / aqfhc.4h28 txe5st from the charged rod will be charged

  Sphere A carries a net posit l1wlpe9or vnmg20rbpjm, (4c +.w7 fpive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded2f vworp9wb +r7 0g .(m4cm1ejppn,ll. Which statement is correct?

  How can a negatively charged rod charge an electroscope po dj,ibbgf+41hsitively?

  An originally neutral electroscope is briefly touche6xnz h15pak;0t zwb,n d with a positively charged glass rod. The ele,ptwk1 za hnbxzn;0 65ctroscope

  An originally neutral electroscope is grounded briefly while a positively char2l2vc p9i b,zo(/;nq nrcgz x-ged glass rod ilx 2,gc2nzz;v roq nc9p /(-bis held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electqwgjt;lk.at+ u2r5sb3t05k k .dd l;mroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Wu+5;dk b 2; tls.wtkgmdqj.a lk03tr5hat happens to the leaves?

  A large negatively charged object is placed on an insulated table. wwo sig3jc7 h*r; yb qz0+c+2aA 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 either ball touch the negative object. Wr cc7 i ;y3+qo*wwa2hsb0jg+zhat is the final charge on each ball?

  Charge is

  What are the units of3zo a0 ,tb1,1jtrwwvp the Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance fnba9rtmi88y- tf7:sd. The first charge is larger in magnitude than the seconfa-nb9mytr ist f: 887d charge.

  Sphere A carries a net charge and sphere B is neutral. Thu) )8s w9 h00 f)vyfekzbmnyr:ey are placed near each other on an insulated table. Which statement best describes the eykuz) )0m hv9)w:e ffn0yr8sblectrostatic force between them?

  Two charged objects attract each other with a certain force. If the cd0)x6b rm+ ytq; ,kdck1w+itf harges on both objects are doubled with no change in s)wk6icx1 ++b,dtf;r tk 0dqmyeparation, the force between them

  Two charges are separated by a distance d and exert mutual attractive:zt4sh-gwrcd9 pm9hl p /7wc) forces of F on each other. If the charges are separated by a distance of d/39tp4zpch:d9m)s rg/7-hwlw c , what are the new mutual forces?

  Two charged objects attract each other with a fom f zb,.atdo8:xot0a9 wp)h+ orce F. What happens to the force between them if on:ozm+9ob. xhwpta0 d,8tf o)ae 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 separated by a distance of 1.0 m. Whath wb* c29qp)fls-o9z c happens to the magnitude of pc9z wsfbo-* l9)2hcqthe force on the proton if a second electron is placed next to the first electron?

  An electron and a prot+i/ 0eigqn3 ,wm. ksw7 ,xvyjgon are separated by a distance of 1.0 m. What happens to the magnitude of the for nvki.,ex/3s i70q wj+gw,y mgce 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 hapfs:4dqp+i)65 w)oxod g+ swqopens to the size of the force on the proton if the electron is moved 0.50 m clg ip+4x)ow:s o ) +fodd5w6qqsoser to the proton?

  A point charge of +Q is pla. 3j;,khoicdj ced 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 of3jcjdk o.hi ,; 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 charge at the center of the square?

  A point charge of +Q is plax .j/ ng.a/6u;ycfvrh ced 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 the magnitude of the force that acts on the cente;u ncjagfhx.6/r yv/. r charge due to a third charge of +Q placed at one of the other vertices?

  Which of the followin.xp f cs-dr8u,g is not a vector?

  At twice the distance from a point char: n4ken*fa3 tege, the strength of the electric field

  Is it possible to have a zero electric field value between a negl)yxgk3mb 82h qzk 81ly7qc* bative and positive chargey8bmy3 2*cbhx1qkzll )k78q g along the line joining the two charges?

  Is it possible to have a zero electric field value betwx+mpiy xmg7 a;p,r(oy ec,+ 9nk4dp: feen two positive charges along the line jor+(d 7px,,kxonmgimy 4pya+: fc9pe;ining the two charges?

  Electric field lines near psfy x5e3dc8c rawhx703 itive point charges

  The electric field sho*1pz(xevx*r 3xcg- hdzp26 v6rv5ie n wn

  Can electric field ll *7cuw)ubklc 4ja*/0j0ot xsines intersect in free space?

  A solid block of metal in elez1r ui*17c)s/bk xmkdqln-9 i ctrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the kil/s imr9du7z*- nqb1c)xk1 electric field in the block's interior.

  If a solid metal sphere and a hollow metal spn3 7,psd3t a6utzud9k, t( afghere of equal diameters are each given the same charge, the electric field (E) midway b(u3n gz,ad,f 3tt6a kp79du stetween the center and the surface is

  A cubic block of aluminum rests on a wooden table in a reg u 2pldu/okvg;5l0fj3ion where a uniform electri fpu03u o;gl 5jk/v2dlc 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 a: cqz+eoolxs09qr)0dicwh *q .n +;xzn electric charge

  A positive point charge is enclosed in a hollow oy9gvegb4w 9cms:z kiuu m4y637(a3 ymetallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a vmz3y39 sikg974g4eyuc 6ambwuo:y( point directly above the hollow sphere has

State three properties8r)l 7t38 ,bvzu;et* d+cum1mti sk ;bh+nbjl of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one elec4 qz*bimk;s6 fot95dbtron 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 o4/pdh+ mjg; sqf +2.00 mC. How many more protons than electrons does this piece of plj +pd/shqg;m 4astic have?

  What is the charge on sxei;+di9kho6u(x mlko- 0( c1 kg of protons?

  An atomic nucleus har1oy2 crd z3 jo 8y0tv0z,ky6as a charge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separatz)jcsi1bb 5: ( mz3,lj s)cwly2ms ot-ed by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is wc izz-3m2j sy m(lc:sj5tb)so)lb1,the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 14 ulxz44cr2mow 43/njpj wa :q.0 N. What is tj 3mp/nxoz42 wj4u:al c 4w4qrhe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart arelg)zpoa,)ux0 +k r0 wp they?

  The force between a )6(rcgsb vfe1$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, exjpp9 k71gy x*vperience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the elek9*vjgx yp p71ctric force between them?

  Three identical point char5:bc 28j/ up,lh;5iyinvhh gkges of 2.0 mC are placed 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 electrostatic force which acts on thebi5 cp/i,g;hlh 8hj5v2nu:yk charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is place ,dj bf 8vma2z5k. azj1/;y)bsn6rmkrd 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 on the charge at the orig vz;mba 8ynadkkj.1zf,rm b)52 /6 rjsin?

  Three point charges are located at the following pol 5 yu/ (bvgjct52ig.ksitions: 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 force on the 3.00-mC/5bug j(lk 5y.cit2vg charge?

  A point charge of +Q is placed at the center ot3+fryq)g *, . vag.-ivndsrdf a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2ys ,rd+g.tgf)3d- nv*qvai .r .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 . p-pci2i8 z- /aepzfh= -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 nC charge z i-8pi-cha/pzp2. ef?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -(a6oujm1d br. 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 the61(ora .bdjmu 5.0 nC charge?

  Three identical charges rwmpj u0j)3m+ of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. m)3jmr pw j0+uWhat 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. 2jw tbnho/tp0ss jwi*g2 h+,* At what point, on a line between the two charges, would it be possible to place a charge of -Q such that t2ssjg*otwht wb+ h 0p,2* ni/jhe electrostatic force acting on it would be zero?

  A +3.0-C charge is at the oxk.)tj;mmb e.,nc q0/ izf :qerigin and a +9.0-C charge is at x = 4.0 m. Where on th;knz eb0 .:m ,x/.fjmq ectq)ie x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed:bro*y;ccv 2q at the origin and charge -q is placed at x = 2a. Where can a thirdq2 cybr :c*v;o positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A pxqg 4bqcjf/4)w. 8t ftotal 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.p 0jjz phjt40 of gravity by the attraction of a fixed proton some distance above it. How far above the electj 0zp0hj.tj 4pron is the proton?

  Two 0.20-g metal spheres are hung frok /e4a(2yu ihd6uf6y cm a common point by nonconducting threads which are 30 cm long. Both4(2d c/iy ufh6uyk6ae 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 of +40e. 6fpmpmy z q*;*What is the magnitude of the electric field at a distance of 1.0 m fro6; p *myzq*mfpm the nucleus?

  What are the magnitude and direction of the electric field at a distance7xkn7e rxc 60u of 1.50 m from a 50.0-nC chare0 cx x7r7nk6uge?

  A 5.0-C charge is 10 mo-oj j. 4ggbq0 from a small test charge. What is the magnitude of the electric field at the 4q-g g. j0jboolocation of the test charge?

  A 5.0-C charge is 10 m frow 84iefy/fv) p r)ql 8 y*fhz5gvbd56lm a small test charge. What is the direction of the elef4 8/ )ywp)*h8fe l lyz dvv6iq5frbg5ctric field?

  A 5.0-C charge is 10 m from a small test charge. gpg goo/jmy(pkg 8;0 7What is the magnitude of the force experienced by a 1.0 nC charge placed at the locatimyo0pogk7 p( /gjg8g; on of the test charge?

  Two point charges each have 7okh1b dl7d-t5ul/t 6hkc8z ja value of 3.0 C and are separated by a distance of 4.0 m. What is t j ullhdtd6hzt-k7c /1ok b785he electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0m5 ;78wdu;fw*zyyi rd cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at thed;ywfwrz7 ;y d5mi u8* 30 cm mark?

  A 5.0-mC charge is pl81f(y pc,wju laced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining tufc8jyw ,(l p1he two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC *3ry nwof25i0tr6e mtare placed at x = 0 and x = 0.20 m. What is the magnitude of the electri2tef3 tyrior5mw6*0n c field at the point midway between them?

  Three 3.0 mC charges are at the three corners o-/blk.avm: r mww-c u5f a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the cwu-:blka5-v. m/ wrmcenter of the square.

  Consider a square which is 1.0 m on a side. Chargev4hq j n0r,egwyjrt*(58 u sc;s 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). Whajjq5hr4ug*e 8, tvwc0y ;r s(nt is the magnitude of the electric field at the square's center?

  A force of 10 N acts on e6ox yas7*d s7a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitudes *yo76x a7sde of this electric field?

  A particle with a char.+ )lv kplqck4pw2o w;ge of 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 poihyib2xqe; m gl38 c;t)nting downward. What charge must be placed on tx;t 8bi cl)qg 3hyme2;he ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plac22wh sg)mdd4 o9:sf3gts1q r vcdn,:sed inside a uniform electric field, and is suspended ag s1: g2rh9tmgd cwdnqfs) s s:34v2d,oainst the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10d bpuzm. o0f//,bieq)fr )0 mq cm carries a charge of +2.0 mC. What is the magnitude of the e0f.ir q)bpqmfo ze )dm/u b,0/lectric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is(onv 2-tw5m kg the electric fielwknmtv- (2 og5d 6.0 cm from the center of the sphere?