State the law of conservation of electric charge.; ,wqy3nnxok8:l t0zv;ul1ss:ls 7 wx

  Is it possible for two negative charges ocif6ksl,p: . aka64fmba- -*n hc)d fto attract each other?

  Is it possible for a pos0ke9 (iit7jv*snz. oq itive and a negative charge to attract each other?

  A glass rod is rubbed with a piecfg ik-9pud9cgapl-,2 e of silk. During the process the glass rod acquires a positive kp9ad lu, gg-p92fi-ccharge and the silk

  A proton carries a

  The model of the atom showcf7a-lv 1 (btv; xuytz7u, ek3s a

  A neutral atom always hasn+e/r lqx+hqt8ofkut16x y,-

  An atom has more electrons than protons. Thz iv)npas2s, 8e atom is

  Materials in which the electrons are bound very tightly to thxjte )b1n+ y+yfoo ,5v3(urfwe nuclei are referred t(o3+)f w+ytu bn,ox15 yevj rfo as

  Materials in which the electrons ahylwmp(m( :/jv v/ :vjre bound very loosely to the nuclei and can move about freely within the material are referred to ymv jp vl wh(::m(/j/vas

  A negatively charged rod is brought near one end of an uncharged metal bar. T0kbh ycln 4d6-wi g,6vhe end of the metal bar farthest from the charged rod will be chargedgn ,0 hcidv66- 4bkylw

  Sphere A carries a net positive charge, and sphere B is nf xcu)f461kuneutral. They are placed near each other o6fk) 1uncxfu 4n an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope s+xi 1,b 5z7ipavnkj/positively?

  An originally neutral electroscope is b3ni dx 8ntzz*(fl4qv :hje*m+riefly touched with a positively charged j4* fnd+(mv 8zqlei3 x: *nzthglass rod. The electroscope

  An originally neutral electroscope is grounded briefly while*o5v) nfksg38bt q- lc a positively charged glass rod is held near it. After the gla-qftb5c3 s8)k lovgn*ss rod is removed, the electroscope

  A positive object touches a mj1irp7fum)wgj /o0 s2-h w1q neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to 7 pjm0)1u/rwgsmjwi fo1 h2-qthe leaves?

  A large negatively charged object is placed on an insulated table.qdxp z z73brf9).o.rp 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 either ball touch the negative objectzxzp)p .r7d f9b3rq.o . What is the final charge on each ball?

  Charge is

  What are the units of the Coulombku39gz(;;pc k2mx0zrxshgk7 constant $k$, which appears in Coulomb's law?

  Two charged objects are sepa ar1)sn0.o0xh rnw ozk4u8tv( rated by a distance d. The first charge is larger in magnitude tha4 su. n w0orkn 8r)ov10hztax(n the second charge.

  Sphere A carries a net charge and f4 )p mvyozr, x;0ftox/-dn91jewx d7sphere B is neutral. They are placed near each other on an insulated table. Which statement besfpmt,d 0xf17rzn) voy4wx;d/jx -e o 9t describes the electrostatic force between them?

  Two charged objects dj wd( esux )ux*vl5*+attract each other with a certain force. If the charges on both objects are doubled*+* vw jeu(5dluxdx)s with no change in separation, the force between them

  Two charges are separated rpc1 oon4k0 m)yq390 ecxdyi :by a distance d and exert mutual attractive forces of F on each other. If the charges are separatex 1oo qkmiy4:d)p0e3c0ncyr9d by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a f0wg2c b-i6pkr::c0ei d 9hbnqorce F. What happens to the force betwec: e 69hbqri0kcw0i-p2g :dn ben 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 dist 2(kj*igzj1l+vvu rk5ance of 1.0 m. What happens to the magnitude k j21 ( *+kulijvgvzr5of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proto3i rc ie6)h eav76.fs(-ub3p ,;xt ea(oqjk drn are separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a seo-i6tqa u(bj diex(e ,3.7c a p)skf6;rherv3cond electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. What happensffuu zxyl-79: to the size of the force on the proton if the electron is-lu9:7ux zffy moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the cerfw 25t 0zcg/yap.;g9 -qhs hrnter of a square. When a second point charge of -Q is placed at one of the squa;afhrpz0 g cq2/srw9 ht5y -.gre'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 placed at the centroid of an epzz: 4t;0x ubequilateral triangle. When a second charge of +Q is placed at one of tzxb:t z;pue 40he 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 not a vector?rpvyw2 x(:,u t

  At twice the distance from a point cha80dzcto /p2rl rge, the strength of the electric field

  Is it possible to have a zes gn587 .rsoncro electric field value between a negative and positive.gocs758 rn ns charge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positiver1wc fksg,gt/t p1,d. charges along th/1,pc1tf k .rsdgt,gwe line joining the two charges?

  Electric field lines near psitive point ch l7qwf;vgo d))b2ycv )8 lcd:yarges

  The electric field showvy4r0;u(*v,n .d ffzcua-d3iuzhv - en

  Can electric field lines intersect in f ebq2)qju ,c+pree space?

  A solid block of metal in elecj5gc/m.z0w*m p x;oq strostatic equilibrium is placed in a uniform electric field. Give a statement concerning the elec*. g;mp0 xw5/zmcqjsotric field in the block's interior.

  If a solid metal sphere and a hollow metal sppqjcz a(kz,1ho *l3ah) )w4ema8yi(ahere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surfaa3*,p1a l )he4y8hk)wa(j oazmq(izcce is

  A cubic block of aluminum rests on a wooden table in a region where a uniform e* )g;09wsn/ ur xvw3pqa0q,hyx odt ,klectric field is directed straight upward. What can be said concerning the charge on,n0 r;qd9,/kpg* )svaht0o3yqxx w uw the block's top surface?

  If a conductor is in electrostatic equilibriumdc7pl8 8vtvf + near an electric charge

  A positive point charge rww,e44;9* kizvp ahiis enclosed in a hollow metallic sphere that is grounded. *4vhkw rw4;ia9,zipe As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conm0q rtj 1aq:d-ductors in static equilibrium.

State Gauss's law.

  The charge carried by one elgq1c16d :s)8 -hxh ernos l(dnectron 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 charg /gwi9 r.pngrm850ybse of +2.00 mC. How many more protons than electronsn g/5rprb s9yimwg.08 does this piece of plastic have?

  What is the charge on 1 kg of protons?cb b)62r)lr7g4 s hvaa

  An atomic nucleus has a ch2-y rnem. tqd(n7:nfc g(n:adarge 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 kt yjb(lfurx+/0c*n g 2r7;sm-4.0 mC, respectivkrnr7 0/scg * b(+t;my xufjl2ely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chay/7w 9,ci+w/rov5qskdf fr- s rge, and the force between them is 1.0 N. What is the+ wfqcyow/kds,sv7r5 r/f9- i magnitude of the second charge?

  Two 1.0-C charges have a force between tha :8a;du xkrolm2 ul4q3z* j:iem of 1.0 N. How far apart are they?

  The force between a 4 f2iu, tr7lew$30 \; mC$ 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 t*oz;rw,u:9o/ yxhlbc hey are moved to a new separatiux 9lo:h;w *ry/zobc,on of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first chc d5r*tiorcg n (+*ae;arge is at the origin, the secoca*g(rior;5d* ct ne+ nd 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 qtx6 ov:z-g*zbtcc)8 are placed on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the rig-zc*bqot) :zxcvt 86 ght 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 origin?

  Three point charges are located at the fol ledcqaxbo 3/m m 00jxqt+m/)(lowing 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 force on thea)bx0o(/lmq dq3mj x/m 0te+ c 3.00-mC charge?

  A point charge of +Q is placed at the center of a squar-gpr,u j5 *glae, 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 ,lugaj5 p*g-r 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, :f euxuu*x9g4 0); Q2 = -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 cug u4xef :*xu9harge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0wg.d /yldhb0 7h5cwf2 nC is at (0, 0). What is the direction of the nb/w2fwd5dg7hhy0c . let force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equila/gu w+u ml26oiteral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which aigu6w +u2l mo/cts on any one of the charges?

  Consider point charges of +Q and +4Q, which f8j u, wj9br7r8 pgfq2are separated by 3.0 m. At what point, on a line between the two charges, would it be possible t7jpfg9q8r,f8jr b2 uwo 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 andqm m9** (f0ra6 7j d6vtmnl zin5n6wsg a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force on it is zeroam9mnn6 sli*z65t qj76w(mnf *d0vrg ?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where c-: q/ 7da -ote8jbggffan a third positivejg o-8eff7b-:dgqat/ charge +q be placed so that the force on it is zero?

  A copper penny has a i8xsag(nwf0 pj)6 fv1 z+xp; :eog;hemass of 3.0 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 g7lus,jg78gl tk b5x3 hh6(mka p 1pid0 9b5klup against the force of gravity by the attraction of a fixed proton some distance above it. How fa6j7h s5a8pdgllk,(kbg phbx t1ig3m09ul7 k5r above the electron is the proton?

  Two 0.20-g metal spheres are hunebu6c w-xnh h6v 5oxak,3/v,bg from a common point by nonconducting threads which are 30 cm long. Both are giv3ex5 bn6wx,-6vc b/ovh,kahu en 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. What is the jw(-zc6 8uragkd7r+m magnitude of the electric field at a distance of 17ku-craz8w d(m6 +jrg .0 m from the nucleus?

  What are the magnitude and direction of the ele.- dw;ybf*sy3k9 klxje s6vg:fbc 70 kctric field at a distance of 1.50 m from a 50.0-n6b kck0 ;3kb*f.yjey97xdf:g-svw s lC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the g+sr2ag 0vq y9magnitude of the electric field at the location of 9srg qa gv20+ythe test charge?

  A 5.0-C charge is 10 m from a small test charge. Wzo0qg q-r rdx4i0jw .-hat is the direction of the electric field?qxgdq40z-j i.-rw0 o r

  A 5.0-C charge is 10 m fikg ) + /qso k9qrs;otbx-5ix)rom a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test c gx /s 5x)k;qkqbis oitr+9-)oharge?

  Two point charges each hav8,e4 olx9t1 zmy2osi re a value of 3.0 C and are separated by a distance of 4.0 m. Whati9s8etoxozm4l ry1 ,2 is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark ofia 5ek67v4r:itkc x c8 a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What k 6i57riex:k c8act4v is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed 1gg eruf41x2tat 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 joining4eg1xf2t gur 1 the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0:jdece; -,vicw4wdrd6 7 6mnti8dlq( and x = 0.20 m. What ij6ec7- c r(dtdwnlvq we,i:di 8m46d;s the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. Thsbdik13 -0 mg lg+zuq)e last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the squq3) um 1+s-gigdzlkb0 are.

  Consider a square which is 1.0cv +w6-y-aj ls m 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 -+vsl caw6-yj); -3.0 mC at (0, 1). 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 whyqt4,0k:5 g:tx vggv yen it is placed in a uniform electric field. What is the magnitud,4yvty:t gv g:x0g5kq e of this electric field?

  A particle with a ch.( v)ohbqk)rgarge 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 o -w0msrh u:*de pt7iw (xdr+-qf 6000 N/C pointing downward. What chare-ix*u + t:wrrhq pdm0 -w(7sdge 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 plaanbd10 r,ho 5oced inside a uniforo na1br5o 0hd,m electric 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 carries a charge of +2.0 4a y xwje k ex)rn+mj(q3lyab15,+;famC. What is the magnitude of the electric field 5.0 cm from the sphere's surfay3e a(w+mbja yj) ;ak,x1el x+ 5f4rqnce?

  A metal sphere of radu(a6hvvzt g hv+g.d*+zn u27wius 2.0 cm carries a charge of 3.0 mC. What is the electric z +vh6z2uhv+t uw* a v7gngd(.field 6.0 cm from the center of the sphere?