State the law of conservation of ele.qy y1+-u: anz:dg*ssf f*tn dctric charge.

  Is it possible for two vg0p.(mrop4inegative charges to attract each other?

  Is it possible for a positi)- zd/2z3az zxq.h,2ej cpjc pve and a negative charge to attract each other?

  A glass rod is rubbed witw6yy 2+ielz*5 xes*rxh a piece of silk. During the process the glass rod acquires a positive charge and th*zseew+*y2x6 r yl5ixe silk

  A proton carries a

  The model of the atom showcxvj mi :g/5ymovay;uto:8 t7i(a (6cs a

  A neutral atom always ,3l*pqtlcks1tlqu6 qk jg:sl.h2i5( has

  An atom has more electroh(1z 8 7zh ully4sy5xnip3j )hns than protons. The atom is

  Materials in which the electrons drz2 au- q0-lvare bound very tightly to the nuclei are referred to 0 -2ulqvzard- as

  Materials in which the electrons are bound very ny2m(mb xrb/ (loosely to the nuclei and can move about f(yb/r mb2nx(m reely within the material are referred to as

  A negatively charged rod is b:h3y k 0n1mi/4y nul/ym-hon 0rzvq: trought near one end of an uncharged metal bar. The e-zm li0m/ko:/y:4yqu 3rntvn hn0y h1nd of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. 38)4okd8 mwn7bpr7gj)girf tvi9 w8q They are placed near each otk73 vrww8bmtd)nf 89gp4j 8oq)i g r7iher 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 3 ie5 ynlael .4.zi77ystxua6electroscope positively?

  An originally neutral electroscope is briefly touched with a positively chargedr( cdsjj 6ri.*d vdu/cg9d*6v glass*vidru6cjrc*.d (9 vs/d dj6g rod. The electroscope

  An originally neutral electrhmk smc 1d749 b)1sxbwoscope is grounded briefly while a positively charged glass rod is held near it. After shb)9m1 m 1ks4x7dwcb the glass rod is removed, the electroscope

  A positive object touches a neutralsm n8k91-eud0ms* jux electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What ha muussx 9n0*k-ed mj18ppens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutrif n rsj+ qs-04m/wtg,al metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path follow 0rmf ti qwngs+4-s/,jed 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 * b9teil6pb+4 4 ynbkaCoulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are sepad:t ;( (r+q; g.auhgwp ,denylrated by a distance d. The first charge is larger in magnitgy(;uqth ,; dl nr. +p:(gdaewude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placed near eaied y1,j6e7 /xnv xcuj73a,(q43marb wug:qxch other on an insulated table. Which statement best descrixx cuv73/,da31 : au7 w(jj4nbie6yqr q,egxmbes the electrostatic force between them?

  Two charged objects attract each other w92xcd+d fk sq3ith a certain force. If the charges on both d9 c+3f d2sqkxobjects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive fo84 3wh bu2ohkzc7nre )rces of F on each other.kzoue)8bh 34w27nrc h If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happend7: 80leh8 oewnlv*0 6rhk tors to the force between 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? Thelwve6nor807:r0 dt8 k lheho* force is now equal to

  An electron and a proto5zjp:n/) j kaen are separated by a distance of 1.0 m. What happens to the magnitude of the forceze :janj/)k5 p on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens i6eh1e3sya ,x to the magnitheax1y 36i, seude of the force 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 hap, c7 pa+f0rvt4pbw-xmt*r8bupens to the size of the force on the proton if the electron is mmurttp0f+ r47cv abb x8w-,p*oved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square.erhmdlbm9 im6(1,5 gf 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 -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 s6ihmel9,(dmrm5 b1 gfquare?

  A point charge of +Q is placed at the centroid of an equilateral triangle. W/ nez,cba5,/uifn 5t ehen a second charge of +Q is place c5/ae ,e/ ni5bfzun,td 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 vertices?

  Which of the following isdn 9ni6nkm,rtdt(p,* not a vector?

  At twice the distance from a point cha(wqh5yk* nio8m)sp d(rge, the strength of the electric field

  Is it possible to have a zero electric field value between a negative an ogv*j+qzl1 d2d positive charge along the line jqd * 2l1zjovg+oining the two charges?

  Is it possible to have a zero electric field value between two positive cha ;( fdmts/qan7rges along the line joining the two charm(7t ;/ndaqfsges?

  Electric field lines near psitive po ud*r)yie)r96 ck(hax int charges

  The electric field sdi0 3kj6s;pax hown

  Can electric field linesluo.hp :e w608lv-mol intersect in free space?

  A solid block of metal in electrostaticfys. -iexcj+x0)1 sqn equilibrium is placed in a uniform electric field. Give a e1qx-.0 xcnssj+ i) yfstatement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphew le+6gydgz:3k 4/i unre of equal diameters are each given the samek4 u ely6:ndi g/z3gw+ charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table i-sh-a4fz x qs8wp9/e :qe0uja n a region where a uniform electric field is diresej 90 uae-hfps-zq8:4qwxa / cted straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibri rq:v,d4flfi u+rhmu ;;wmmyj9r,4s 1um near an electric charge

  A positive point charge is enclosed in a hollow metallic spherdbga pc9x;.);ohj * yge that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has)g; py;hbg c9.o xda*j

State three properties +tqnr964bmc3t.iq eha 7a3 oe of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electroizi8 qacl.onc+ ,e34in 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 more pcf /3;wj4x7b bj +vfko,+pit zrotons than electrons does this piece of plastic hav +z;wbjf +i, kot47vj3x p/cbfe?

  What is the charge on 1 kg of protons?xmq3 spw8 k0h3

  An atomic nucleus haje2l,qs1n,xqo(day0 + mu3wk s 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 c7)efem ;eu9g5 cud pu1m, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitmd5e e9uuf ug )c;71epude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, cunow (q4 8k:band the force between them is 1.0 N. bnk( oq:wc84 u What is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 Ns89l3jrbtb4 q . How far apart are they?

  The force between a 4p fow q6a zm0rg*:ju-atp;d 8$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initic zlol2772i oially 2.0 cm apart, experience a 1.0-N force. If they arzi2lco l7i72 oe moved 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 f9f.:isjnm ,tq 4c0 lmdirst charge is at the origin, the second to the right at x lit:dn9 c,j0s. qmfm4= 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. Asp 10b fq6y/ii 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 cmf10 y6piqsbi/ 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 following positions: gst t j /7de5.a4;)8rafujm xl419 psczj i(tlQ1 = 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-zex9j1/4l ca;p457 ats8li(tftmu)js gjr .dmC charge?

  A point charge of +Q is placed at the center o rbn8w* afs;z)i8s 9lgf a square, and a second point charge of -Q is placed at the upper-left co*)sfirns8gaz l9b; w8 rner. 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 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); vv t) hkj-j3p9Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 39 jp)-kj vvthnC charge?

  Q1 = 6.0 nC is at (0.30 m x-;3r3o vrvw cc.g-eg, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the directi cc3-wv-rg. xgr3 eo;von of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are plaq5ui3b/qih3f2 /7v9 ed wxq gvced at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of 33/5di2 wv xei9gqhu7qbvq/fthe charges?

  Consider point charges of +Q and +4Q, which are sepzru e :117bby+mdawy)arated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting o:mzr1d 7 b1wyu)+abeyn it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at3xe 1nh8j se8k5 7zeiv x = 4.0 m. Where on the x-axis can a third charge be placed so the net forni78zj5k13 xe8esehvce on it is zero?

  Charge +2q is placed at the origin and charge -q is placed atxcnaz p15h t:. x = 2a. Where can a third positive charge +q be placed so that the force on nha1p.xzt: 5c it is zero?

  A copper penny has a mass of 3.0 g. A total of +f kx5ri: *zyrq5nj sz; 3w-eywscf6)$4.0 \times 10^{12} \; electrons$ 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 gp)xwhyd t*59,k( cqmagainst the force of gravity by the attraction of a fixed protontkxhq, wdc9m y(*p)5g some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a commo18hj jbcly x6bh5 zr07n point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsry x6751 hbbcz8hlj 0jion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus hasa6 (+fvz,tfn sqa3h -- qapmbxzu+ i78 a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m fr37fbh8a u ,z avq-6p i-(nma+x+qfstz om the nucleus?

  What are the magnitude and direction of the electric field at a distance of xo-y -..jh1 roq/)lutt;mjn z 1.50 m from a 5 nhxzqut;.y1/- mtl orj)-jo .0.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is theh0o.k0m rc z0p magnitude of the electrizhm .0cpo 0rk0c field at the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of 9q,m ew1bh6mruvqh/ 5the electre1 , /w5burm6hqhq v9mic field?

  A 5.0-C charge is 10 mup bx6p *ce,r02:4do:i hfm+jn3mpd e from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location p,x0e4+n uedf:ipdmc*poh m26 b:j r 3of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a dist -ubswe,rg b;/ance of 4.0 m. Whage ub s,;-wrb/t 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 metesdp+vh/r0*k sb6i rll) /*qu ar stick and a -4.0 mC charge is placed at the 50 cm mark. What is the elect s*al dplurbiq*kv /s+r/ h06)ric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick a6 vq en .w4lnxv(dr5/xa*rg :snd a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electrn a el56(x4grrndsw qv/x *.v:ic field zero?

  Two point charges of +3.0 mC and -o+ c:z9o a2kzzu)x402c; gwftzt ro*v7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the ele+ag zof:) cr zk tzuco2x;w29oz0 *4tvctric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square bw)x ,qcra7 3p5-fyx0 lsv2 n-qcn ny,of side 0.50 m. The last corner vl nbwy)nxq 7afrs ,xc3yc0,-n25q p- is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which 4fz lt88-n (0:l fcvrqq x.rgsg95aw(etqc 7ais 1.0 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); -3.0 mC at (0, 1). What is the magnitude of the elect falz4 tsv n a57gf( -qqt8c.xqg8 9rwc(elr:0ric 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 uniform electraayhgtghxyr*g 74 (x1m 1* k)gic field. Wgxgar hahmt4yg(y 1* k1xg*7)hat is the magnitude of this electric field?

  A particle with a charge of ec(8 l vkkz95y imb4/z4.0 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 pl k,j*f0g2e0d0qr f9uha.mly zaced in an electric field of 6000 N/C pointing downward. What charge mu.2 dfk09r0a*fyl ,0 z uhejgqmst be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge o xuxvb08/nplbw-*e:blv; *j lf -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnij l *uxvp-0 w8lbxb/*b;:vlnetude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the8g3bbp+ k q-lk magnitude of the electric field 5.0 cm fp qkb3l-8k g+brom the sphere's surface?

  A metal sphere of radius 2.0 cm carries a 7efo-t1hu. m 3+c/p3gkd sr ircharge of 3.0 mC. What is the electric field gkft+7c pmhd1 r3 3uroes-i./6.0 cm from the center of the sphere?