State the law of conservation of electwof74 tp ;)ccpric charge.

  Is it possible for two neg/sk y o)u8:)xetfv u0native charges to attract each other?

  Is it possible for a positive and a ne mrynlw7p(q 4jdum8. civ: ,8rgative charge to attract each other?

  A glass rod is rubbed with a piegw-sqp0y i+l3ce of silk. During the process the glass rod acquires a posi-gs p+ilw3y0qtive charge and the silk

  A proton carries a

  The model of the atom shows ahu i6h( :z.gmi

  A neutral atom always -l2p18bxl*+ t i7owjkv wl: gzhas

  An atom has more electrujt/7w /fem z8ons than protons. The atom is

  Materials in which the elecwtd: u)-sx7k5m pz+wcy u; gd4trons are bound very tightly to the nuclei are referred to as4w p7)t:czgyu-mwsdkx;+ 5du

  Materials in which the electrons are bound very loosely to the nuclei angswn:y5iq :a3d6f.z t(qql+hd can move aby.6l wg3+hi(zqq:a fq ds:5ntout freely within the material are referred to as

  A negatively charged rod is brought near one end oflmi7 aq9l6 7nj an uncharged metal bar. The end of the metal bar farthest from the charged rod will bl7i7q9 n6l mjae charged

  Sphere A carries a net positive charge, and skuk)4 r6-ep/uuzx n7 zphere B is neutral. They are placed near each k7 un r -kz6pzx4/ueu)other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged r qvs;9bk d -bklhg,eq ;o:k:(jod charge an electroscope positively?

  An originally neutral el *td*7 p x(nl:m/dou3(qd 3bma rgy9thectroscope is briefly touched with a positively charged glass rod. The elec xhpbq d*o/g(7 m(:*dynd tm u339trlatroscope

  An originally neutral electroscope is grounded briefly whil: d0vx :az)ebse)44 /usds zf5yji-e me a positively chargedszmisd::a4fxe)uz y 54/ese- 0b) jv d glass rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the lr,i ovfk5( /:o ypsv-keaves separate. Then a negative object is bri,kvr :-osp ykof(/ v5ought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A ne. ibm65j r79agj s 5pmu:gmj)yutral 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 nega gm9yir) b pj.67a 5ugm5msjj:tive 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 thb(0ws *d12 cdaqq h4n7q5 vhlse Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The7 t9tbzxb (apvp+plryh1 6w j(l(k)s. first charge is larger in magnitude than thekzb6 l( ha9bsypj7+1l.wv xp(p(trt ) second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near e9zhe sf2k zd80;;+8 (lftsmwwg,t spv ach other on an insulated tabm98k +st,vwp 0z;f(ghzsl8t w2 ;esdfle. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If thd;4zr4pog71 yldstqyc.1 jmi xf w *91e charges on both objects are doubled with no change in separation, the force betsod*qy1ijd 4 gz1t lrmc;xfypw.71 94ween them

  Two charges are separated by a distance d and exert mutualt 05e by5vvg6fe fs8o) attractive forces of F on each other. If the charges are separated by a distance of d/3, what areb)gvov5 ye8fe5st6f 0 the new mutual forces?

  Two charged objects attract each o7ekmeb wbv 4de 2l /7caq6h lx(3.shv6ther with a force F. What happens to the force be73lc.h/hklsa m76xe (4vw b2ved6beq tween 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 separated by a distance of jkt+ 83+hc;-zoc;r,cw +cmi dwbkp r71.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to tkzo+ bwcj+7 h c r8;c;k-iw3m,+prdcthe first electron?

  An electron and a proton are sew)7y(ve bx xn 7w+fzx0parated by a distance of 1.0 m. What happens to the magnitude of the force on the x7 wy zxnfe+0)(w7 bvxfirst electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a p i/eu1v4oq n9m:l2ljdistance of 1.0 m. What happens to the size of the :mu2/ejl qi o4lnv p19force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at th:;cbvkjc,k *le center of a square. When a second point charge of -Q is placedv*,lkc;:cjb k 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 on the positive charge at the center of the square?

  A point charge of +Q is pl(claqhrt *hp(g t,/9rti;q tk5w2u / qaced 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 center charge due to a thit 9tcitqw (qhg urkh*;2/q /t5(rap l,rd charge of +Q placed at one of the other vertices?

  Which of the following is not a vector?vqzlspv-/s ei4z ;s +/

  At twice the distance from a point charge, the sdwfxs5n(j)w + trength of the electric field

  Is it possible to have a zero elhfmhz*t*hl gn.(fdq w:*59d cne w6r 7ectric field value between a negative and positive charge along the line joining thf d:cg75 q*eh*(wnltz. m n9fhwdh6r*e two charges?

  Is it possible to havl7wde wk xq4i01v nz;6e a zero electric field value between two positive charges along the line joining the tw6 4 del7ivq;01zkwn xwo charges?

  Electric field lines near psitive point c.clt6o;2bja gharges

  The electric field showk3w :5.irup cp/n6d;l o ey:hin

  Can electric field lines intersect iv1zj 3x xb7r wb- y4rog:8ryy+n free space?

  A solid block of metal in electrostatic equilibrium is placed in a unifor8r19fhc e wg0yi8yzl0d(ep4x m electric field. Give a statement concerning the electric 9w (p8yx408z fd0h 1e yilergcfield in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameteo 5y eri;*4qvxp imrh4i gc4*ik;34 rrrs are each given the same charge, the electric field (E) y pi45ii3c rri4 g;*rrxk*m q;o4hv 4emidway between the center and the surface is

  A cubic block of aluminum rests on a woo df(v ,0j3i*ebio:n;z fqojdhl3.:xyden table in a region where a uniform electric field is directed straight upward. What c(;o djzx*, 3 fyij 3ofl:qvdh0eb.: inan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chlfimh9hv 6h ml:sdc: z2018w+an4jnm arge

  A positive point charge is enclosed in a hollow metallic sphere that is groundedwnx(f6o dm/ wn yei1w5ifi*((. As compared to the case without the hollow spherew( w(6ie x/yffdmonnw (ii51 *, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static e. r9.cxq3mk klquilibrium.

State Gauss's law.

  The charge carried by onpkk swqb:cmjh8 )g xclv :6*-)e 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 morsh m1b*,/v./ocjp uj ye protons than electrons does this pieces/ cm ,pjh./1yvuob j* of plastic have?

  What is the charge on diei7) cleyb/ jcton:y (;f06 1 kg of protons?

  An atomic nucleus has a chargect5g c47ciy:hz;qa r*7wx+ xla6is;r 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 oft e,/2zm 4wxpa;q o.dr 2.0 and -4.0 mC, respectively. What is the mag2mxdrte ;/ q.4zoap w,nitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chargelj6k2e k3xt )0zd1bbb , and the force between them is 1.0 N. What is the magnitude of the second c)2d bbklz6t30kxb je1harge?

  Two 1.0-C charges havep ;1pn8uayc 9dy8 ;w 8blylm:s a force between them of 1.0 N. How far apart are they?

  The force between a myv;z ph40oj ;o 6zm/f$30 \; mC$ 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 arhz4v q ,lxxe:*cmgt;6 c ntv5:e moved to a new ,;gel:6cnt x thxvmq*5:zv c4 separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0sp5 w33fg; mgu mC are placed on the x-axis. The first charge is at the origin, the second to the right33wpgsm;f 5gu 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 charge of +2/g(u op*ag z3an,j 37:yzvu79lebk rf.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cp7r/:3a z e,u3*fyln kj( gg7bauzvo9m, 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 origin?

  Three point charges are located at the follo ulg *ox76re /u ky7(s3ex-dr, d*yegul/u(uywing 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 d*xryu7*( l7 (oe3uy- ku,/geley6xrs/uudg force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second pwjbobi+-7 5myb2m v ,roint charge of -Q is placed at the upper-left corner. It is observed thb5mm brio+v,wbj-7y2 at 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 at (0, 0.10 m); Q3 = 5.0 nkq4 g k2*ztf4kC is at (0, 0). Wq*zkgk 24k4ft hat is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC5u vvm8/hhfu .iu5izb l3 ;mf-1e n:hy is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thy1v8e h/5immhif:uzun5; b .vhlf-u3e direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilabuk/u*gf ad1vx3b bhn+k5.cyz4 6d4 steral triangle which measures 30 cm on a side. What is the magnitude oy 1bkbdu+3c65 vb.d fs 4g4n *zuka/xhf 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. h oyv 788fz: e9zl.3 cxmjzc.nAt what point, on a line between the two charges, would it be possible to place a charge of -Q zv7 e jxz fyz88:h.mn9 c.ol3csuch 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 9tuc)q5izl;ro qtu8. xp2f+r is at x = 4.0 m. Where on t zutl 9irc8qotqf ;)25rx p+.uhe x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the or er p5 u(hj7 johrbcy+,f 0kbtzj7ew4*f09w,n igin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force,he+ wkhte0 w4yr 75 bzfjp7nc,juj 9rb 0*(of on it is zero?

  A copper penny has a mass of 3.0 g.2f ob + ;s pwj;:mt7babkrhb0riu;+5y 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 og pqp(10rmp8f f gravity by the attraction of a fixed proton some distance above it. How far above th0 qg1rpfpp(8me electron is the proton?

  Two 0.20-g metal spheres are hung from a 8qs*oj ty4a0 caiw*7d common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces t78 d*y*qa0jas4 wico 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. Wha9oqf ;t;8arjq t is the magnitude of the electric field at a distance of 1.0 m fr fat8j;;oq9qrom the nucleus?

  What are the magnitude and direction of the elec6x)-ril he x0atric field at a distance of 1.50 m from a 50.0-nC charge?)lr0i x6 -ehxa

  A 5.0-C charge is 10 m from a small test charge. What is the magni z+ckaic86 i*jtude of the electric f 8cikia z+6jc*ield at the location of the test charge?

  A 5.0-C charge is 10 m from.b nei s03fz64r.wnf7ihko- 8/pjgjh a small test charge. What is the direction of the electric fieldgw fk3.8hrhfj7/pen.i zbijn40o6s -?

  A 5.0-C charge is 10 m from a small test charge. Whah)bsftv8ur/b 3yy -pf, 4,(aocmw fl2 t is the magnitude of the force experienced by a 1.0 nC charge placah-ymc,ffs3pu(b v)o8twl/ b,f42 y red at the location of the test charge?

  Two point charges each have a val-mr/ws1 20y gkpp-yduue of 3.0 C and are separated by a distance of 4.0 m. What is the elkp2g dmr--y/ sp1 0wuyectric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meteec)lz1p6xctn q3u3p 9r stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elz3)6xc3pn1 u petqc9 lectric field at the 30 cm mark?

  A 5.0-mC charge is placed o fytq ic-c(ja0h2 4m,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 the two charges is 0j,o(aci2 4mt fyh-c qthe electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are plac z*q lrrtt0uh35ks38a ed at x = 0 and x = 0.20 m. What is the magnitude of the el3q8zkst tu5lrr ah3*0ectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.5;bn g3 4bgo9cg0 m. The last corner is occupied by a -3.0 mC charggcbgo9ng b 4;3e. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placeyz2goaa 4slme 4/ tj,snnj3-1d 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, 1azjnjnge, 14 t /o34lassym2 -). What is the magnitude 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 coxjtte (,w5ql8vn a 7/czy: :ab4u q+in a uniform electric field. What is the , 8:qeo:tq (7lb/t+aacjn4xuc5wz vymagnitude of this electric field?

  A particle with a chac 5jd/ 1opq-nfp29m:bk yi5ox rge 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 mass6vtk9/ier-mj hz7qqnc (se;0 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball(9qj; r06sk te/zivehq m7-n c for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC.yi* 7o)z wv4ah The ball is placed inside a uniform electric field, and is suspe va7 oi4zy)*whnded against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 2ibbamqsb ;,:10 cm carries a charge of +2.0 mC. What is the magnitude of the elect a bb;:q2b,imsric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.kj1-nvc v(qivra3d);0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm n-qar)id cv 1kvj3;v( from the center of the sphere?