State the law of conservation of electric charge.),4) pov-q7 l0fqiqba8f hbsv

  Is it possible for two negative charge; ba/wbf8hhkt7 oy6i+s to attract each other?

  Is it possible for a positive and a negar fin0,rm/,0g/fcy wxtive charge to attract each other?

  A glass rod is rubbed with a piece of silk. Dbpl;vvsvaxy6kzt:02ut +jg z345 mj ,uring the process the glass rod acquires a positive charge and zxtp z2k: ujs;b t0gvma4+l35j,v6vythe silk

  A proton carries a

  The model of the atom show;-k6 h r5az)qmhoj d5ys a

  A neutral atom always jvvlmog( f npjf5q dz)6kb+ig;/48a8 xgp2 f2has

  An atom has more elei8;c(f.dyx qictrons than protons. The atom is

  Materials in which the electrovz:*9jk9lg y3xl v5kx ns are bound very tightly to the nuclei are referred to 9kj gvlv xl35:y*k9xzas

  Materials in which the electrons are bound very loolz.mj(e (is7ibjr6 qb*1 i3 ht u4bz6v lrq92ksely to the nuclei and can moim 7 bzkulti1lhbjq6(2 jqr6vz sb3( ie*9.4r ve about freely within the material are referred to as

  A negatively charged rod is broughk0:7vo2eqb04 tu 1 bvwf1 vqglt near one end of an uncharged metal bar. The end oq0 b2lv:k7 feu qgvbo1wvt401f the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is9wmgi+p;vr *c neutral. They are placed near each other on an insulated table. Sphere B is briefly touched witc+*pm i9g;w vrh a wire that is grounded. Which statement is correct?

  How can a negatively charged qg(.am(m lppp p+*(qv rod charge an electroscope positively?

  An originally neutral electroscope is brieflyoq( jb4--ske:1jcm rb touched with a positively charged 1 4 or eq-kjbsbc-(m:jglass rod. The electroscope

  An originally neutral ezh6i0 +zmca* vlectroscope is grounded briefly while a positively charged glass rod is held near it.hvc ma6i*0zz + After the glass rod is removed, the electroscope

  A positive object touches ag qn1a6c32 ;:w o2pul/zxrdfj neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscopea3gn;/u2f6 jw qrc x:zpol21d, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an ine .d:ege m ,.r8kvt*tdsulated 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 ba8.td* v:km,.e eerdtgll touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constae)9 3qrw*ll1a9 w cc4qix9 epant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is lar1d:r e n)vx(fsger in magnitude trdx vn e(1):sfhan the second charge.

  Sphere A carries a net chk1 si gagk an8m7t 1y, s/3jbevn47i(uarge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describsua 773(ybmg8ne 1gv 1ias ,/tji4kknes the electrostatic force between them?

  Two charged objects attract e i0 ncl9vvky0tej,j 7sw+p/e 0ach other with a certain force. If the charges on both objects are doubled with no change in separation, the fociey0 l +e/0,n j0tws 9pjvv7krce between them

  Two charges are separated by a distance d and exert muta :s3,o)fp d/oeex*w sual attractive forces of F on each other. If the charges are separated by a distance o/dpf s o3aoe*w e:s,)xf d/3, what are the new mutual forces?

  Two charged objects attract each ot n qjnvzj66,vx l.3i ).vei*elher with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduci .j.xv66v) j*vne ,nzq3e llied to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distance of 1.wcz,3y 0bjudkk/00+e 9gtsqwa+ vfu,0 m. What happens to the magnif+3y+dbqwakzwukt 0s e c,g,0 09/ujvtude of the force on the proton if a second electron is placed next to the first electron?

  An electron and a proton arez ti o3,njz-kmnc2.h. separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed nextn t.m., czoh-j ni3zk2 to the proton?

  An electron and a proton are se*k:wz 0k/hdsv parated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 w s*hkvz/0d :km closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second point c rmc4+ vb5:+(ah3h4h egvmxhyharge of -Q is placed at one of the square's corners, it is observ+4hc:+xmagyr vb e hm45( v3hhed 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 equilateral triangle. Wht+qj5s g:ao*z4imk e 6en 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 i+q4ks5 m 6a:jez* ogtacts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not .c +h-k5nn w/ia+yozia vector?

  At twice the distance from a point charge, the strength of the eakno;s-t2;t )3 2ckrfx 3 elxdlectric field

  Is it possible to have a zero electric field value bbtxpx*4t 2t w1etween a negative and positive charge along the line jb2t*ptt1w 4x xoining the two charges?

  Is it possible to have a zero electric field value between a/ex tv;j +z4l55;sd-jzns estwo positive charges along the line joinin55tss- z ;jx4as en j+e;vldz/g the two charges?

  Electric field lines near ps q apkp6zy*+fn43 a5vgitive point charges

  The electric field sho-l ;h-tbxg3ve++df mu wn

  Can electric field lines intersect in6. i1vjavl 2* t3e3m y9sfffwi free space?

  A solid block of metal in electrostatic equilibrium is placed in a u)l9 fpgg jr4(lniform electric field. Give a statement concerning the electric field in the block's inte )lg( 4grl9fjprior.

  If a solid metal sphere biv qofrv(:/ ,)rxlz-yhme 8:and a hollow metal sphere of equal diameters are each given-o :mrvzeqx,h)b8f/y:rl(iv the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a regiozt; csa 04-ilzn where a uniform electric field is directed stral z;tz4i -ca0sight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic v6a) 3ojzn0tm;v/t n ut 2xjw.vww,lu2jj: 6uequilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere th8z17f;wjn hwcz s:6ehp 5jp l.at is grounded. As compared to the8pecl 15;6:nhzjwj7fw .zs hp case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of condu 6w9wv4. lukkkctors in static equilibrium.

State Gauss's law.

  The charge carried by one electr(fjbru 30g) hp)um ;mcon 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 pp8m a8tz bu,g8rotons than electrons does this piece of 8m a8, tzbgp8uplastic have?

  What is the charge on 1 kg of protons? g5do-ot4 u0obb j;4nwgb4. dw

  An atomic nucleus has a 6q l2ce h uefkdaoybp4134/r 7charge 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 -4.0 mC, r ,q yk+0goq,:oi(gjj vespectively. What is the magnitude of the electric:j gvyoj(0+g oiq,,q k force between them?

  A 1.0-C charge is 15 m from a second charg jlynivl(l88g u -w20ue, and the force between them is 1.0 N. What is the magnitudiy8lwllu - 8jv2n(ug0e of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apz:l0cgf hjs*4lnj l48fd,2 nrart are they?

  The force between a n(q aj()hl4 (x o*ztdh$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience .kle9y+1dj -jyot.vm a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electo9.ldv my t+ej-j.k1yric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. Thbi1z *bi b+*cqubd12se 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 *udb1bzqbic 21b *i +sthe electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the gs:spj 089kuvg8 rw ; 6o5:ujgsfwqd0h 08xqxx-axis. A charge of +2.0 mC is placed at thvu8 x 9s0o:sgjq0pfgd:hk g 5;0s qu8xr6ww8je 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 origin?

  Three point charges are located at thev fsdmw(8me18xfv 0c1 following 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 81 s0( 1vxwmvdcf 8emfforce on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second point cha(r syhnb48.if v77qdn rge 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 fodsnf.r7( nb7i4 q8y vhrce 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 rsv+/ac f7f *pnC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is rffs7cvap */+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 is at (0, 0.10 m);g67 qfvx vigef7gc)2 v;o;l1w Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on;f 72v)vecx67wlgv iqf1g ;og the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at th;s 3kuch,pgt2 e vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostati23;,h cputk sgc force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At wh1- eso8g-m3/ fz 7vcfocowl-uat point, on a line between the two charges, would it be possible to place a charge of -Q such twv3g7 -louz oc -1/ems off-8chat the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C /weny* y qu3,0p6cs+droh1sd 7+wycw charge is at x = 4.0 m. Where on the x-aw+sh e6 ,pr3c 1d0ys coqwny/u+*dy7 wxis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed atm9y fso+c ce-( x = 2a. Where can a third positive charge +q be placed so that the force ( fsyoc9m+-ce on it is zero?

  A copper penny has a mass of 3.0 g. A a6* :gs1laxts 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 theesz8y b 8uruz2 xj06.n0bg0jh attraction of a fixed proton some diszz 02y80r.gxuj8 bhenj 6u0bstance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from aa2rl hl)-ya n; common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the el-n2a yahlr;)lectrostatic 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 smxnn sq42n .5q..e ng 87znvf686c xx yhtpg*+40e. What is the magnitude of the electric field at a distance of 1.0 m from thxx6es.qy4tn27m 5qnz8hc 8vn*gn6. sp ng.x fe nucleus?

  What are the magnitude and dil h4vbx0v/a (f1npk1 jrection of the electric field at a distance of 1.50 m from a 50.n x 1fa/h4j1pb( lk0vv0-nC charge?

  A 5.0-C charge is 10 m fru y7q41;bau28ssyk 5w0j1n2vz gx lcoom a small test charge. What is the magnitude of the electric field at the location of the test charge?v0 q2w 2nk ;j olsbya4uy115zgcs8x7u

  A 5.0-C charge is 10 m from a small test charge. What is the di dx0 e(c8x3a2gwen lg lp1f,6krection of the electric fiele fcgw1x la2ne6x 0,8dl3(kgp d?

  A 5.0-C charge is 10 m from a small testn219zvzgv v 3x6,ucuf charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the teg3 v6, z 9nxcu1vf2uvzst charge?

  Two point charges each have a value of 3.0 C and are s5 4k97jgygnq)j;wxe78e w vcjeparated by a distance of 4.0 m. What is the electric fij;ej9) 8gyw7 gq4 k7 jvncxew5eld at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick andldqqm. 4e-- koii 9hmf om-i29z (wn:c a -4.0 mC charge is placeo-iehz:.mokmld iq 24i ( -nwm9fc9-q d at the 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 chaq:ch a zjrgk( +eye+03rge is placed at the 50 cm mark. At what point on a line joining the two charges is the 0a (j:h erq+z y+kec3gelectric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 mlsmqn4ln 57hp -u.2o m. What is the magnitude of the electric fihn2-lmn sm pq7u.o54 leld at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of sid.vmxycvdqd* r*+o*y 6e 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of tqx*v y y.* r+voc*dd6mhe square.

  Consider a square which is 1.0 m on a side. Charges are placed at the c5+5uq5vn *,mr2pr (zmlq av-p la0nzxorners 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 magnp u v n2a,5 qnmall(5r-p+z v0mz*xqr5itude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when (:)uj iz a9;l1)z 4ugqgz ccdqit is placed in a uniform electric field. What is the maj)4c : c9qlguq)gizudz1;z ( agnitude of this electric field?

  A particle with a charge of 4.0 mC haslv 4dz bsu8k7h8mqh13 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 placef7;+j1ax+ltm q lqw1td in an electric field of 6000 N/C pointing downward. What charge must be placed on the+m+t7 ljwq t qa1x1;lf ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. T0melq4)2p h8pnwyijn k.7 ri:he ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are th:)lii mpye 7n0q.h2w pr4n 8jke magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is thdqh.zs1j 7.v8 q g:xnxe magnitude of the electric field 5.0 cm from the h.zng x x.1vd8:sqjq7 sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. wq m4jy42ci0;a;ark ;* vjstc What is the electric field 6.0 cm from tq;y; a2*4tcwa;i4 jkscr jmv0he center of the sphere?