State the law of conservation of electric charge.ugrmw,q 6yj8cms 4,r9

  Is it possible for two negative charges to attractma/o m h5))/v2mthcgf each other?

  Is it possible for a positive and a negative charge to attract yw+ 9 yelqui0+each other?

  A glass rod is rubbed with a piece of sn ra+isk2uvg) q(v e:9ilk. During the process the glass rod acqsk2g (+nv i)v:qaure 9uires a positive charge and the silk

  A proton carries a

  The model of the atom shnh:ut,*n3x a2/hhb i rows a

  A neutral atom always)sihtbhoa 7 1k4 ce;ah1s q+:z has

  An atom has more electrons than protons. z l ) p:f5yzby( .r6pgzar9xh6 The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refer )ob)bj2no8 hrred )hb orj)bn28 oto as

  Materials in which the electrons are bound very loosely 6(siyuhmc *q5o2ux6 rto the nuclei and can move about freely within the material 5q *h62i6 xs(ryou cumare referred to as

  A negatively charged rod is brought near one end of an uncharged m 9w9-lpacgyp 5ywh+a +n akbre /v0v32etal bar. The end of the metal bar fary3vyclb g 5a9k+aw+an/p-v9 wrhe p2 0thest from the charged rod will be charged

  Sphere A carries a ne; yo++./yzf g ex58zc1jwdwbs t positive charge, and sphere B is neutral. They are placed near each otheybcsz 1z g5;y+d+w f .w8x/ejor on 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 positively+ s y em.bry1f-1iocbxv,1wl*?

  An originally neutral electroscope is briefly touched ehjk9y/ffk( 8with a positively charged glass rod. The elk(k jyff9h/ e8ectroscope

  An originally neutral electroscope is grounded bqaruk2 xuw 70-riefly while a positively charged glass rod is held near it. After the glass rod is7 wqrk-2xu0ua removed, the electroscope

  A positive object touches a neutral electroscope, a2 tbku0vqdz/;fx : 9tknd the leaves separate. Then a negative object is brought near the elz 0 tub:/kd;tf qvk2x9ectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged ob.uq1kvg d -qcbn*r;h6 ject is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along16 ncrvb; * qdh.qku-g 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. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constan,l6.hrdyor6cwx,g2 k *4v*,2 pt gaqsb6 dkcx t $k$, which appears in Coulomb's law?

  Two charged objects are sfih ;8 9u3lwzoeparated by a distance d. The first charge is larger in magnitude than the second cha f9u i8zloh;w3rge.

  Sphere A carries a net charge and sphe-ol pb:*6 bslo5r c4hore B is neutral. They are placed near each other on an insulated table. Which statement6*sooc 5:- 4lhor blpb best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If pcmnwx sxwcv g m1)m:.yg72l.z,3. bithe charges on both objects are doubled with no change in separation, the force between themwx mm2) ycgb lwn: c1..,z3mi gvp.7sx

  Two charges are separated by a dista)aahg z -bc (knc nzv4f7 +jzv718jlb0nce d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutual f0bl1hn-7fc g7abkc )v(j+a8zzj nz4v orces?

  Two charged objects att.lyh: m:rt0yv ract each other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, andm:r 0 y:ltyh.v 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 d 4f0)it1i;1 zkbr,1fp d dkiqby a distance of 1.0 m. What happens to the magnitu1dbt f; f41 qr0di,1dzi ikpk)de of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a dist(w41za)oly b0b- ol pyance of 1.0 m. What happens to the magnitude of the force o14)- a llyo0bw(pyboz n 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 mf dnlp/ oh 5u1e f4t2+6zrm,bx. What happens to the size of the force on the proton if the electron is m56n+xf /z 2u1dotr hlpm,4eb foved 0.50 m closer to the proton?

  A point charge of +Q is placed at the centegmllv;wu-zaoa*)m 7h *7mi j/ r 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 -iom;mw z*j)*7/-ml h7ual vgaQ 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 equilateral trianglth nu5 o 1ej(01ee2oaa yw*.uqe. When a second charge of +Q is placed at one of the triangle's v t(hee*o uuewy2.aaj0 n1o q51ertices, 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 no4o3lw o7o mb/pt a vector?

  At twice the distance from s/omx:ltii)u. q./ eg m(qi6ia point charge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative and py(k+/j mzj q3. fds.nmositive charge along the line joining the two ch (jj n .sq+/y3dfmk.zmarges?

  Is it possible to have a zero electric fieldp;gz2 b+o 9hm:cib vlpq1 0kf7 value between two positive charges along the line joining the pfhbq zb1; :i+2k9 7 co0vglpmtwo charges?

  Electric field lines near pssvpu7opp 2 nj8ui *g)xj8-i5 ritive point charges

  The electric field shown m;nfny, / gj8 j8zs7pk

  Can electric field linc( 5hs.jpi ,qdes intersect in free space?

  A solid block of metal89ix:1 j (dqps +/ yvqxh-svob in electrostatic equilibrium is placed in a uniform electric field. Give a qj8v1 b:povx(d- +9s hiysxq/ statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow meta ejo4kq0 6pql4l sphere of equal diameters are each given the same charge, the electric field (E) midway betwee 4o0ejk4q 6lpqn the center and the surface is

  A cubic block of aluminum rests l j(5mz1u9kfmon a wooden table in a region where a uniform eleclju 91(fk5z mmtric 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 l /bebtw,:- jzan electric charge

  A positive point charge is enclosed +yu :a;,z8moktcyi/j g12,+f ilsfx2rzf(zcin a hollow metallic sphere that is grounded. As compared to the case with2yju+sgfz(k fzm c: 8/oa2tzi cfil+;r 1,,yxout the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in8 x7u(ajlejr 1 static equilibrium.

State Gauss's law.

  The charge carried by one p;qrbud ahz6eq m.3.h wp+ 5u*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 chargo.4rdg0 : q3dsfc* ghsd1qje;e of +2.00 mC. How many more protons than electrons does this piece of pldj3.esq gg1h * r4:f dcsdqo;0astic have?

  What is the charge on 1 kg of protoa7br wiw4y; n j-)t+t;mv9zh pns?

  An atomic nucleus has 4 bgdl jov* ,8.h lbt75bmhh10gpouq*a charge 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 ob zqbx:gt*8z 82*(rl0nf +c blad2lw 2.0 and -4.0 mC, respectively. What is the magnitude of the electrwz+x: c8b bnlq 0rbl82ad2fz **gl(t oic force between them?

  A 1.0-C charge is 15 m from a second charge, and the force bet q0l)hp6iq7 i. rkt0noween them is 1.0 N. What is ttnrqkoph 0i 607)i.q lhe magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are t ps uanhmvc4 2-d8wp45+ t8kpthey?

  The force between a *df1(3i uxwq;iqdr o 6$30 \; mC$ 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 theypua8is kzws5gz/ em3**xxcz*n ,j3h; x bu*)j are moved toc3z wz*x aeu)* ;3k5j/szsb *hgxn8ipxjm,*u 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 tr:w ihy -vr7x1he 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 :r7vyxh i- wr1acts on the charge at the origin?

  Three point charges are placed on th97rr(n8jmyq5d h b 86cjh4ndm e x-axis. 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 direction of the electrostatic force which acts on the charge at the originb7n(mr8cqrmj9j 8h5yn 46 ddh?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x c a6 2ynk1ur4ikck:d ,= 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 yir1ucc2nk,6k4 :kad on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a squat(bhce,xg zod:2vo * 5k0-z5c/msh ktre, 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 acts on the center charge if a third charge of -Q is pl eg2-s(:kh dhotz0m 5 ,bz*vctcxok/5aced at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.16/v wnamyklw bjv ,6*,0 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC cmnl6,aj*yk6 wwb , vv/harge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.1nqmz ;lml( +(x k5 ;*kg*l)rnwsbh fg10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net f(fnzlk ml mw(k1bsn*5)x lh+*;g qrg;orce on the 5.0 nC charge?

  Three identical charges of 3glq:9z,bqg* ku:+f7 n mgri3 o.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force g:3fmrgb l n,7 ukq:z+*oq9 igwhich acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by vxh4 jlj;x y91jef5:b3.0 m. At what point, on a line between the two charges, would ixejyf :;hj451b 9j xlvt be possible to 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 and a +9.0-C charge is at x = 4.0 wlb1vwvvukdkhy8 t329px( /. dy9s1 cm. Where on the x-axis can a third charge be placed so the net force on it i8v xupt2l(hd yk wv9y. w1/d3k19 vbcss zero?

  Charge +2q is placed at the origin and charge -q is placed at fa f mqn5smld *bb6/ g,x.1y8ex = 2a. Where can a third positive charge +q be placed so that the force dsy l *./561qemmabnf,bg f x8on it is zero?

  A copper penny has a mass of 3.0 g. A to:c/ qszlx iq;s0r3wb1h /.rz ltal 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 b+aof 3*f o p8cq4+nbqv2pn* xty the attraction of a fixed proton some distance q ocb va p*2fqf3no4*8pnx+t+above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common ju1x u)*plw 1ul,u5ng point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic re1 )plu j g1uwlux5*u,npulsion 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 magnitude eusd yiy8s:;2.lq 70 ;t *qnfdpg i,ugof the electric field at a distancel7syi .iuf0,; 2pqtd8gge* sy;q:un d of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric fieldp;9.uq pylue3 at a distance of 1.50 m from a 5eq 93p.luu; yp0.0-nC charge?

  A 5.0-C charge is 10 m fro1;6qud+d-mkzdg)s aamphq 95m a small test charge. What is the magnitude of the electric field at the locaps1a -d6u);qd5gakdzm9mq+h tion of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What *q c,lwpm(bc2s. ga fzt op5(o1,j ji+is the direction of the ele bjf*o+,soq p2m(ctjz wcgp1a 5(i l.,ctric field?

  A 5.0-C charge is 10 m from a small testaps)p 6b .qkk6 charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge? pp.ak6q6b)ks

  Two point charges each have a value of 3.0 C and are separated by a distance of 2 ki4qt503ym2sfyv i,bx 09b efh2vmy0/bkhi 4.0bsmyihy0by 5vvfk 32,t02q 20 4ifm9x/ih ekb m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 6--rtgx)ezb n mC charge is placed at the 5t-6grb-xn )ez0 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is plac69cob( nqgpxv ) cf)w hcbk9-;ed 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 l)oq; 9 (k 6vc9)hgwx-pbcnfbc ine joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed -f6qf pt id:zyz-/nz 4at x = 0 and x = 0.20 m. What is the magnitude of the electric fiez46t yzf-fnp: dqz/ i-ld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square +(ozj4 gfdg 6pn 4*zfzof side 0.50 m. The last corner is occupiefz* g6j gz4+ nodz4p(fd by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges a8k8bx0bfwfi bg 819nw re 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). Whatg8xw8bfik 89 0 wbbfn1 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 in a uyrv*dum t s+ hs/j +kc5)g1p.mniform electrichs /.tdm g*k umcy+1jvsr +)5p field. What is the magnitude of this electric field?

  A particle with a cha:dcb.:4 :ypc4r7ppv8r jnvlirge 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 fielsy +tcras/7p -d of 6000 N/C pointing downward. What charge must be placed on the ball for it to be susp 7yrtcs-p+a/s ended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is p2i9 v0fumm1 oaa.5i);tbjtfqf+m yh(laced inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction fo0ihv f2j; ua ima.f+(mm t)b15 tq9yof the electric field?

  A metal sphere of radius 10 cm carrv2jvf6)a vm0 aies a charge of +2.0 mC. What is the magnitude of the electric field 5.0 ca2 v0j v6f)avmm from the sphere's surface?

  A metal sphere of radius br+q:o9rgcgc i(jgk1 6*xp4i 2.0 cm carries a charge of 3.0 mC. What is the electric64b *ircx (og+gk gr j:pci1q9 field 6.0 cm from the center of the sphere?