State the law of conservation of electric charg mforz-tdct1 ,iz reje0+c1,( e.

  Is it possible for tx qw0jglizev*(:( s3j wo negative charges to attract each other?

  Is it possible for a positive and a negative charge to attract each othe7hm3b 4.cq xf zn r68q d/bi4pmjec,/tr?

  A glass rod is rubbed with a piece o9xocpy+2s4u9 sx -fmef silk. During the process the glass rod acquires a positive charge and the 9s+ef-sx42cyxpmo9u silk

  A proton carries a

  The model of the atom shows aorm7 6v3 g(mmxwl) 5ma

  A neutral atom always has)tsm6eor jar7.)ux3 b8ov ) ir

  An atom has more elecndgojyg2svj *z 5m-c :/t4k-itrons than protons. The atom is

  Materials in which themm1m 4nugf2 r8 electrons are bound very tightly to the nuclei are referrugm2 1rmnmf84 ed to as

  Materials in which the electrons are bound very loosely tok5z(tg20zlav5g 7mjs the nuclei and can move about freely within the material vl 2gm507tzkz5g a js(are referred to as

  A negatively charged rod is brought near k8qz asg*kds) jsej3z6 ;n 68ro.l h1oone end of an uncharged metal bar. The end of the metal bar farthest from the char8;lke66s1s hz)jjd. 3r8*gz anokq soged rod will be charged

  Sphere A carries a net posit++nxeqpn ru55:bofa; nlw,o 4c kgs--ive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which stb :- l+eas5pqk 54 gnun,o xfwn;co+r-atement is correct?

  How can a negatively chm-ppo r)cy /u4/ e2s3uo8qgc/c ma9ljarged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a pos0ujefv e( 9e(qitively charged glass v e9f( q(e0ujerod. The electroscope

  An originally neutral electroscope is grounded briefly while a positivelc,,o1qybs 5gg y charged glass rod is held near it. After the glass rod ,b1gg oc qys,5is removed, the electroscope

  A positive object touches a neutral electroscope, and the l p65d xp(vymp4eaves separate. Then a negative object is brought near the electroscope, bupd( 5pp6xy 4mvt does not touch it. What happens to the leaves?

  A large negatively chargedqh.x7;k 7 epjr76a c :r7uzjo/exvw9s object 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 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 object 6z sphw vee7axkc7 . ;q7j7/rjo9ru:x. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constant ilhlhm6 ,,nu* $k$, which appears in Coulomb's law?

  Two charged objects are separated by a d8w5zj 1quw/yrzl 7 tmdn1q7q1istance d. The first charge is larger in magnitude thanmq wy1rud/wz7l1 q7n5t qj z18 the second charge.

  Sphere A carries a nbqdn n7-n n(zg/ag.(met charge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best dgq/zdbg-( nm.7( nannescribes the electrostatic force between them?

  Two charged objects attract each other with a certain force. vi,pa. i.g4ob ;mcb3gIf the charges on both objects are doubled with no.3 .mbv g cp,ib;4ogai change in separation, the force between them

  Two charges are separate(cqm2n lb,f 3b+ebk: :i /dtmz+wt vy2d by a distance d and exert mutual attractive forces of F om(23v2mwyt/n tlbbie +q,bk+f d :: czn each other. 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 happens to t gtb h jwu2;i8-m2h9 ablue30h5sp t-the force between them if o l 22empuh-hs u5h;9bgt0t3i t8jw- bane 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 ;zuen935riiidistance of 1.0 m. What happens to the magnitude of the force on the proton if a second elec9iu riei ;nz35tron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. Wfqc mwem93m90hat happens to the magnitude ommc93 mef0qw9f the force on the first electron if a second electron is placed next to the proton?

  An electron and a proton:ucnkydu c*3) are separated by a distance of 1.0 m. What happens to the size of the force on the p *yu3: ccnkud)roton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the:y0 bl6dbf0pc center 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 0c6l: yfp0bd bof 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 equilateral trianglet3e 1 iumwwv39. 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 atvi3 1uwe93mtw one of the other vertices?

  Which of the following is nots+r rvjekqp1 5d) (nw:)65rzv kd7amf a vector?

  At twice the distance from a point charge, the strength of the ele0s neho 4r(7sictric field

  Is it possible to have a zero electric field value b4pl vc,(tlg( k bbr)w7o+df k)etween a negative and positive charge along the line joining the two charltk)d+b v74)cof,k (gplbw(r ges?

  Is it possible to have a zero electric field value betwe(isfy9m n3t* ken two positive charges along the line joining the two chargestnksm(9 y*3 fi?

  Electric field lines near psit y qz86bh-ft(spm+w7eive point charges

  The electric field shjzwybn8r t8v r)/os/fvq (u gqn7y3+9own

  Can electric field linesi lu 3;s0-e cde6klgq.ixd :p2 intersect in free space?

  A solid block of metal in electrostatic equilibrium is plac. r p-zsu*o+oded in a uniform electric field. Give a statement concerning the electric o*p.rdszou- + field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameter:-d0f .uqitv ) /m vfnc8zl4lws are each given the same charge, the electric field (E) midway between the center and the surface.v u v0-clz/8wmifn4:t)fl dq is

  A cubic block of aluminum rests on a x*wv3/aw:k f gnu(n0p wooden table in a region where a uniform electric field is directed straight upward. Wha0(3a uxg /n*wnk: pwfvt can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium nec.l:s7js0mfv* er,jo;js)e f ar an electric charge

  A positive point charge is enclosed in a he5-ay, b rhxkl5mk6w(ollow metallic sphere that is grounded. As c-ekw y h(k5 ,6rx5albmompared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equiliaer2uu,ii/rl* u1 .pcbrium.

State Gauss's law.

  The charge carried by ozv ;z3t1ki 3t5j7whtg ne 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 more protons than o.w w-nhm 7 i3a,gix 4y(hzo aab;r8y:electrons does this piece of plastic n;yw baz.8:gawo4ai7,(h yr xm- oi3hhave?

  What is the charge onfq)by41f ; 5g dujsy3h 1 kg of protons?

  An atomic nucleus has a c,ua ck h1ti2rxv btdp2x 3. .i20)levpharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.u:c3r3uf2t7i ndr :9 hb 73hpxqglbk :5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric c 7glqb9:fikup2tux:bd7r3h3 3nr:h force between them?

  A 1.0-C charge is 15 m from a 8bgtbvqk ++x: second charge, and the force between them is 1.0 N. What is the magnitude k: t+ bqvbgx8+of the second charge?

  Two 1.0-C charges have a force between thyj3*v zvelcx 38z) aqn* r5wj.em of 1.0 N. How far apart are they?

  The force between a rgqws.jn pqo+) m09a zc*qx;: $30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 bh j/u)le8wlmm -f +e7cm apart, experience a 1.0-N force. If they are moved to a new separation of +m l-hmuw87be je/)lf 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axisas60hi5(2mfg dwr-z yero.o0. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 10zo(-. fiwr o0 06amerdg2h ys50 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 char ctg u9i2*)ozdge 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 tho2gt*9icu dz) e 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges arf *+o1o zy8ttwaci11d e located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at c+ a8o odtw*ify11z1tx = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is y,vzge kgs64kd-(-f zplaced at the 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 center. What is the magnitude of the force that acts on the center charge if a thi( y --k4z,gkgvfde6zsrd 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)v; h;;: yk xkf)k+neus; Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC charge kys:vkx+;;eh )kf ;nu?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at) i x1ab(r1* dzq+bfvn (0, 0). What is the dnbq1* )zvdf b1i+ (xarirection of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilatergsf +d9f,+ aq5-evcv ial triangle which meas v,f9qvc+i aes+fg5d-ures 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 arwig d;p1su5py7s44tx e separated 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 actitd41xs pyi75s 4gpwu ;ng on it would be zero?

  A +3.0-C charge is at the origin and a +9.0: iumbn+)fie; -C charge is at x = 4.0 m. Where on the x-axis can a third )u+ ;im b:nifecharge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -qor l4*kvi k2c+ is placed at x = 2a. Where can a third positive charge +q be pla 2*rioklv4ck+ ced so that the force on it is zero?

  A copper penny has a mass of 3.0 gvx36bwgau*x: s z8w. f. 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 ,h0dva5ddrj05 gp fh( ;fdaujk/v10 zthe attraction of a fixed proton some distance above it. How far adz505d vahujjd f;k/h p0v ,(frd0g1 above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductingk)nrr3xd180 r-x xi tb threads which are 30 cm long. Both are given identica x1xd03 btrirxrkn) 8-l 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 magnitude of yiphyro+ :jcg* u(0y6fc,03fm rmt3z the electric field at afmo,+cycr: u 0hjt6zry0* 3 yp m3g(fi distance of 1.0 m from the nucleus?

  What are the magnitu0 jag((r4qdbqs 0t2 hdde and direction of the electric field at a distance of 1.50 m from0dqhtg4a2 0jds(b(q r a 50.0-nC charge?

  A 5.0-C charge is 10 m x gzg/y)n .+7lnsxq ;ffrom a small test charge. What is the magnitude of the electric field at the location of the test ;sxy gf.)nlgqx/+nz7 charge?

  A 5.0-C charge is 10 m from a small test charge. What is the 69hwh dd) ks,..rlxw nzmg:pb .q9 ,pxdirection of the electricdxph x).qwnlsw z,9.ph :gd6 k.,b9mr field?

  A 5.0-C charge is 10 m from a small test charge. What is the magn 9b4zd:5jqns qitude of the force experienced by a 1.0 nC cn: q4zdq js9b5harge 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 ofihj)vb wzgx.6yo4up 4sb056 b 4.0 m. What ii xhbp0z65u446jog b.s )wyb vs 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 vf wmi8k56kkp80;izp and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mark?;v6 mk88pz5pifi kw0k

  A 5.0-mC charge is plafng) f2 pgc/zzlu*hsd6 gg) 8/ced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed atghz)8fp)dg*l2sgzf 6/ / ngcu the 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 a z 5(rzrw nq+d0 gee9zn5:nf;rt x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point midwaywrndr znz;:(nz 5f 0reg+ 5e9q between them?

  Three 3.0 mC charges are at the three corners of a squh( mhv90c*ykio /jna :,ehq6rwb)b/ware of side 0.50 m. The last hhky(mr* 0eh ,n/b/ )qocww :69vaijbcorner is occupied 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 are5;j;e u a9rwhc1nf k7p 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); ;c1wf n7j9kh 5;apue r-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.n:eb e q3w ql7y8q:y1obsw (s on a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of t3wqe.qy s1 o 78w:(ns:byleq bhis electric field?

  A particle with a charge of 4.m(qal3vb xvc 4:3iu j7j8* peg0 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 electr87vj pytcw*c q;d5,lzic field of 6000 N/C pointing downward. What charge must betl v,;cwq 7dzp8yj 5c* placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nCdoxv2yu. 5ptgs8 u;( t. The ball is placed inside a uniform electric field, auyx;2sp(t8to d5.v gu nd 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 ac x9atf ,0e +1;vmmlcs charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the spherx;, + f19meas lm0cctve's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3* /eon fb 77adek4ye n+9:yufe.0 mC. What is the electric field 6.0 cmaud7b :fey7+/ky 4enefo e9n* from the center of the sphere?