State the law of conservation of8hx-drcm+ c-m electric charge.

  Is it possible for two negative charges to 6,s8r2miudjqn ; 0nkfattract each other?

  Is it possible for a positive and a negative charge to attract each other?z94/,ag fouhwti ) ;iu

  A glass rod is rubbed with a piece of s+ onym/b 1itg/c 3qt-e- h/bqsh,:af bilk. During the process the glass rod acquire+b/:-n t/ 3mhy/fogasqh beb1i tq c,-s a positive charge and the silk

  A proton carries a

  The model of the atom sh9aveh zmio4lzqyw a9:0j7 h80 ows a

  A neutral atom always h*+g 6zk e d3l+4mfhfceas

  An atom has more electrons than protons. rh9.cnpkm1/ugb+ /jtThe atom is

  Materials in which the fh .30yfdcb2kelectrons are bound very tightly to the nuclei are referred.d2byc0 fhk3f to as

  Materials in which the electronsa:-; sq4qb:jm.lmubg ;nw.xv are bound very loosely to the nuclei and can move about freely within the material are referr..vg :;b:naqx j -4usb m;qwmled to as

  A negatively charged rod is brl y4o, 6nn 8:2k-kg4q:dhzva6ep nknaought near one end of an uncharged metal bar. The end of the metal bnv46d znna alek:8hpnk6- q kgy,o2 :4ar farthest from the charged rod will be charged

  Sphere A carries a net pog3)4v.seb5c3q d:jcr g rgss6 sitive charge, and sphere B is neutral. They are placed near each other ocvbs3qg3 sg4ced rr:g56.sj )n 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 positive8zfsie/9uw 3- obfbo6ly?

  An originally neutral electroscope is briefly touched with ark5crs*ebhl03 ik yzq4g/ ++c positively charged glas*i 5+4erb/0 rclc gqh k+yz3kss rod. The electroscope

  An originally neutral electroscope is grounded brief:8sbzux yyvx 30v 9d/lly while a positively charged glass s: d3v09x y8ly ubvzx/rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leaves separate. 8xxfzxb:ki w zuat36n5rcq1z0hi8/ ) Then a negative object is brought near the electroscope, but does not touch it. xikzz/ qf8x3 0i8wuah)n1xr: 5ztc6b What happens to the leaves?

  A large negatively charged object is placed on andy vba stle +0/(8(3mysmh; wj insulated table. 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 s;yy0laestw+b (m3 ( vh/m jds8tops. 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 Cp,2 /tnd khl6 jz4s qvax8k,fjy(q p39oulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distawqf; ;g7dfw9ynce d. The first charge is larger in magnitude than the secondgf7w9;fdy ;qw charge.

  Sphere A carries a net charge and sphere B is neutral. They are place g ouib), yw3.r9qzj:gd near each other on an insulated ta)izb9 gy jo,r. q:ug3wble. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If,b5ef l.,tqwj the charges on both objecq.b ,e,jwl 5tfts are doubled with no change in separation, the force between them

  Two charges are separated by a x)xl8d s +d0 mcffegp9g9.ev-j dj 25cdistance d and exert mutual attractive forces of F on each other. If the charges are separated by a distav9x.clc)f-x0m gef25 e j9p8gjd dd+ snce of d/3, what are the new mutual forces?

  Two charged objects attract each other with a k-bu,o kv j4e8k/ucn2hgi*(yforce F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distan ke,/2hnu k(8*i-k 4ojugy bcvce 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.fzhn)5 7u9pjkv z-ac) What happens to the magnitude of the force on the proton if a second electron is placed next to the firstn5pv7-ukz 9 faz h))jc electron?

  An electron and a proton are separated by a distance of 1.0 m. Whoddhs 0f *2m-zc5w+ ur6w:hy uovz;9oat happens to the magnitude of the force 05h+hzuofd crvo:z;2w w6m*s9ud -yo on the first electron if a second electron is placed next to the proton?

  An electron and a proton are separqob b9po vt:i*ui f0b1mw gg745tbf;5ated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0pqu5m:4b7bi9bbvw0ott;* g5f g i o 1f.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When*)g s4hut .rju 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 areh t) gr.4*usuj 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 centr5z9 xys pu3r2u09dzh xoid 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 third charge of +Q placed at one of the other vertice5 s93huu9xdy pzr zx02s?

  Which of the following is:qc a b/7jkgn5 not a vector?

  At twice the distance from a point charge, the strength of the electric fillhqsw c3-,l vo:p467ei uuv6eld

  Is it possible to have a zero zl. clm0 82bubelectric field value between a negative and positive charge along the line joining the two char.0l u8z2bc lbmges?

  Is it possible to have a.z b(p/a/me cv zero electric field value between two positive charges along t/vcbza /m(p. ehe line joining the two charges?

  Electric field lines near p9+hd5npkuh x 7sitive point charges

  The electric field shoae4sap8 w;sq.omh r81 wn

  Can electric field lines intersect in37s 1yr yyzd6px6dng 9 free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ele6o.i e-mgia:ictric field. Give ai mog:i6-.eia statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of w 7l,wwndze)bxpb o 9t -f52j)equal diameters are each given the same charge, the electric field (E) midway between the center ) df2-l nww 57eb9)bjxoz,wtpand the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uni66l+ :h6hhqhyketx2 g form electric field is directed straight upward. What ct6qh+h6 :lgk 2hh6eyxan be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilz ;f* .el :rkum;55xhwrp) nlca,q :l;4wiwbpibrium near an electric charge

  A positive point cha.hexwk u3fxmiva)w.8 mn .p8: rge is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field m:.m.xi8a w 8 hx. 3fvku)npweat a point directly above the hollow sphere has

State three properties of conductors in static equilimgz)svq8lvcjom (fk6 c/2 2f,brium.

State Gauss's law.

  The charge carried by one keh ; -pr1sprd6:ovmo: 5y5x9ohou j: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 m:r.i2qub pzcqg2a *c 3ore protons than electrons does thi c :g3c.bia*qq2pzu2rs piece of plastic have?

  What is the charge on 1 kg of protonvvv stht/:x/) 5pip/ss?

  An atomic nucleus has a charge of bw p+qveu)3u; ;ezqw)$+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, se*xpq)p; g vn:kparated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric forpx)qnpg:kv ;* ce between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0z/hy pfta7*z0 j15 gwg N. What is the magnitude of th a5hz/*y1gg 70ztpjwfe second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are x *3e8t qgqrmxcz1-2y0f rzk+they?

  The force between a v/ow+xk(r *2d p9jewg$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience; bcnkkc rfx*wt:(3 v5 a 1.0-N force. If they are move 3;*(xkk bcrvn5 tfwc:d 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 on the x-axis. The first cha3k0g oo n deu,2uusj)(5q9siw rge is at the origin, the second to the right at x = 50 cm, s onu d9 0iuuke523jgswq(o), 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-axil 4at l5up5i0yl w ;,ol,.eed;fng8lbs. 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 magnitude and direl ,0t.;l;lpnlfl4 ,yud aow58ibe 5gection of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the follo/0mi65n gde(qq o0thqvnd p.7wing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC aqtgddn 7. 6h0 pneqo/q0vi m5(t x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at th vrp9z2+x/ my3ec.qgke center 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 ce r9cmy e/gzxkvp2+q.3 nter. 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 (00h jj4whh9wf 2.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). h2w9fh0whj 4 jWhat 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 nC 0 ,(scj z*ml9qq 5ilhmis at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction o zijmq(q 095cs*hmll, f the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are i .7/qx vf;sk 7h,sbf9gt 2tpzplaced at the vertices of an equilateral triangls7t sk,f;7tg bvh 9zq/xp2. ife which measures 30 cm on a side. 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. vs;g t1.xaozjy h* 2 ytiz+6m6 At what point, on a line between the two charges, would it be possible to p6* hto6z s vzixat 2y+.ymg1j;lace a charge of -Q such 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 is at x = 4.pd+z/m x bou 1q,yz*3v0 m. Where on the x-axis can a third charge be placed so the net fozbmdqpy 3z/, x*ovu+1rce on it is zero?

  Charge +2q is placedg4auav3me ,f8 at the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it 4 mua,egav f38is zero?

  A copper penny has a c qdt7 c(h -w))c)pxysmass 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 up against the force of gravity by the attractio6o c:ebpwqb ab049o .on of a fixed proton some distance above it. How f.bo:boc bp6049o aqwear above the electron is the proton?

  Two 0.20-g metal spheres are hung from a comm*rt*3 :yl hkiq uj)c)ron point by nonconducting threads which are 30 cm long. Bi:)3 c)rr *uljht ky*qoth 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 c76. ;g0madesit t-nq..koa 6q+cz mds harge of +40e. What is the magnitude of the electric field at a .s-i.dn;7 ko6s.d +mtcgeqa0z6 ta qmdistance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fihb z3s(us0dc-eld at a distance of 1.50 m from a 5003u -chssz(bd.0-nC charge?

  A 5.0-C charge is 10 m from a small test chag6gi1ly3x; qli y-ib*rge. What is the magnitude of the electric field at the location of the te *b-6xlq;3iy liyig1gst charge?

  A 5.0-C charge is 10 m from a small test charge. What is the oc2qfw3n (h )hdirection of the elh(chon3 ) 2fqwectric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magni84s.s vs d5hxjtude of the force e 5d.sjh4sv8s xxperienced 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 separated by a distance of sefb)b4+is s 14.0 m. What is the electric field at a poi+ s)4b1isbse fnt midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a 7u+aw- vx ib95(hnwe umeter stick and a -4.0 mC charge is placed at thevxb5h7+i euan( ww-9u 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC charg6egua( j8l p 0 zubw25)5 rptmv0m1zpqe is placed at thlweqb0ap0 v2 u1m85 jr5mug(zpt) pz6e 50 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 egug9mz5o. 8,b ubp /bx = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midway betw,uzb5ogg p98u. b/mebeen them?

  Three 3.0 mC charges are atl8i6o:7uz, 6szemmqw9sp 4q o the three corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric: 98o 6zoiq,ezpmq4musls 67w field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed at the 81q twa8cnzof;*p/ym corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC z o*cp 8q1wm/natyf8;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 square's center?

  A force of 10 N acts on a charqi /s bz5q.m 05gkjzf5 a3rbj:ge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric field?5/akgjbr zbq5s mzf.q:0 35j i

  A particle with a chargam2;,ws)rccly .i,y5r fc z4pe 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 i 46rzfu2nys n;n an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to z2yn6 su;nf 4rbe suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is plac4q kzko l . se ub9nnw-8)*nuc*as6s9ped inside 6)uc* ske n*b s8wnsolzn94aq.9u-p ka uniform 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 car1pxru liw1*m,q-: vtnk zm*)e ries a charge of +2.0 mC. What is the magnitude of the electric field 5.ruv )-x1mm n*k el1wtpiz* q,:0 cm from the sphere's surface?

  A metal sphere of radif7c 9v)wc ,57wp.nhu+gef g tzus 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sph, hge7v5pg. wt c9nwcu+7zff) ere?