State the law of conservation whaott2cnc405c v pw2 v2( 7jcof electric charge.

  Is it possible for tw oxc/ u zvf*h*s58aq :fj8c:awo negative charges to attract each other?

  Is it possible for a positive and a negative charge to attract; 1+ev iozfe/z each other?

  A glass rod is rubbedmji1f ) uc41 uyakjt1-w9godhi54q x9 with a piece of silk. During the process the glass rod acquires a positive charge an xhoucgqdju-i14)f 1j59419m ikt ywad the silk

  A proton carries a

  The model of the atom shows ap p9: vrk:cf+gcl5 s)h

  A neutral atom always :un)n+:2m h -tn: pdurkt e9h.dnyfk-has

  An atom has more electrons than protons. The atom yzf u49-ut,gs is

  Materials in which the electrons are boun;armsct bqh5*m , t9gcihkg99 /g2qd2 ),jup cd very tightly to the nuclei are referred to asr9q2 c5 uth cg/*9,m ab,);ctjpm2hggisdqk9

  Materials in which the electrons are bound very luj88 bnew3**taqdhosdng)b; l0l 0v 6oosely to the nuclei and can move about freely within the a3;q bnn l* g0b0v6t hde* l)8d8jwusomaterial are referred to as

  A negatively charged rod is brought near one end of an uncharged metalgoq,hv 93:t(jc hk a6i bar. The end of the meta (:kti,h6 93vjg qahocl bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neub0gfk dq 9fv:cn67 zuzo44:un2.gj autral. They are placed near each other 7 n guzf:vn20d fg6uoj q9ku44:.c zabon an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod char304oso hrf4m o e v..jwbadd9;ge an electroscope positively?

  An originally neutral b --4xf gyuewwc 0e5omdb/z7:electroscope is briefly touched with a positively charged glaz g4yem/efb :x5 wbd wo7c--u0ss rod. The electroscope

  An originally neutral electroscope is vbjd22** hegv x n/oz6uzd:7v;ptdn6 grounded briefly while a positively charged glass rod is held near it. After 7j/pxv v*dnd t2u6:d* g6;2 vobezzhnthe glass rod is removed, the electroscope

  A positive object touches a neutratlj;jro +7h zd;6kxjj*g8t1 vl electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Wh o86xdjjlvrk7jg+1;t;h z jt*at happens to the leaves?

  A large negatively charged object ho-tg6 ;a 6rhgtvvu) -is placed on an insulated table. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutr-r; v6g-agu vt )ho6thal 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. What is the final charge on each ball?

  Charge is

  What are the units of the Cnjzs3a/ (q jv 7*u*tvw ijrr::ci63 tgoulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated (6 cdmsp2j za: ;hmiq7vne3n: by a distance d. The first charge is larger in magni6j 3 zp:ni;mqmvd7 :snec(ah2tude than the second charge.

  Sphere A carries a net chargs6t0zn jmq0nzxe; 8 i(e and sphere B is neutral. They are placed near eachze i860stznq;jxm (n 0 other on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If 8 frqq e0-ftos,4,s qrthe charges on both objects are d q rq -oqs4f,,8te0frsoubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive forcesm dc7:r8)blsd uoj70k ( pdxp/ of F on each other. If the charges are separated by a distapu8cxp7odbd/ldk7 j sr :m()0nce of d/3, what are the new mutual forces?

  Two charged objects attract each other 0ywrfn g( c-llnt2+o8with 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 reduced to one-fourth its original value? The forc0r +o2 ncl8(lt-ngw yfe is now equal to

  An electron and a proton are separated by a distance of 1.0 m. What h8s4myyq6)mc r9 o1obf appens to the magnitude of the force on the proton if a second electron is plam1s)or b8cqy y 6m9fo4ced next to the first electron?

  An electron and a proton are separated by a distant ha69s/g2 -sjzjfpz+ bcsmpgpo0q;5:*h,g oce of 1.0 m. What happens to the magnitude of the force on the first electron if a second eletz9go6g cajojp*5h ;,+m :gs/-0 bzphfq ps2s ctron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. q u x-6fh p96)qdxxdb-What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the proto--xd )bqu66ph qx9xf dn?

  A point charge of +Q is placed at the center of a square. When a e. -hmva :a-ousecond 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, identicav.u moae -:-ahl 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 ce)da;bc w2c; ientroid 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 ac)a;i2 wb;edc cts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a vi- zs+- hi1hsti,7o sd2i 4mnr5 hu0yhector?

  At twice the distance from a point cha6 xyr e/d/+qolrge, the strength of the electric field

  Is it possible to ha pbb55 xz,q;6a ny;nvave a zero electric field value between a negative and positive charge along the line joining the two charges5;byxqnb5 a pa6;vz n,?

  Is it possible to have a zero electric field valuemeg4sipnv0z 8e p.6o. zq1 -pf between two positive charges along the line joining the two charg-zvmq1 g.8o6ppfe .0z4iep nses?

  Electric field lines near psitivem ye3sg; e+dc)z6elj. point charges

  The electric field skrog(wtbqh.xq*44dr n3a o 93 hown

  Can electric field lines inters ,*ec w0irx,i4bn 9ojject in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform .ge. s gvs55:keiygz6imkwp 7azl0:3electric field. Give kig. e6zps7gwle550. i:v:g3ymk asza statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are e: 1lwwo6ys(a fach given the same charge, the electric field ywf:s 6aolw1( (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a unify2qnx c9 l ysn1z+f-,wl0i a3uvz9o p:orm electric field is directed straight upward. What can be said coz3 ,9ca:p 9iwf20 loyzs n -yunlx1vq+ncerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric chqrf p9 zqrs)6.arge

  A positive point charge is enclosed in a hollow metallic sphere ) qpo6z5*npgcthat is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above thn)oq pp5cg6*z e hollow sphere has

State three properties of conductors in static equil*dy/ax3:b uoei ; .v. sj9)iwzehzg 4librium.

State Gauss's law.

  The charge carried by one o,fmele2j )9 l3bq0 uoelectron 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 charsgy6(, ldd3s*g vr y zin67yk2ge of +2.00 mC. How many more protons than electrons does this piece of plastic have?6vdgs y ( 2 sn,63lrkiyd7g*yz

  What is the charge on 1 k65ova -,fu 0mze+ yxqkg of protons?

  An atomic nucleus has a charge of ;tsk3 0s ,ehop$+40e$. 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 chargv,7 d)ibx 1o/a) qowsbe values of 2.0 and -4.0 mC, respectively. What is the magnitude b1b soa,o)7dx) q/w viof the electric force between them?

  A 1.0-C charge is 15 m from a-hv0rnlfjh+7 +o( m bj(uv 9wn second charge, and the force between them is 1.0 N. What is the magnituv+(n9jjv +w h0(uo7mfb h r-lnde of the second charge?

  Two 1.0-C charges ha/42m(bx )i,ygor wzorve a force between them of 1.0 N. How far apart are they?

  The force between a bh-2 a m*iv8m:irrq 0p$30 \; mC$ 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 they a0em009wkjk 7 sct-vo4bqsg-4 oi)jzare moved to a nso0-00-4 4)gj7 saiek kocb9twj vm qzew 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-axisb(xs 9y q/p+xm. The first charge is at the origin, the seconp 9(smyx/+qx bd 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 acts on the charge at the origin?

  Three point charges are placed on the x-axis. A ch y9m:j3ewtiq 3uzwn2) arge 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 forcej9n)wqwet :z3y3mu i2 which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC auekm ph8v.) x.;yxkg/t x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. ).k.x/e8v ph kg;xm yu What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is placed at the center of a square, and a second poinv znbyt rl2b .0br4j86 q5v6fot 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 placed at the lower-jbbf28rzybq 0456 lvo vnr. 6tleft corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 n/: vh4 c;qsudzC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the4dv:s/h ;zcq u 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, 0.1 6.abn. .hswvp0 m); Q3 = 5.0 nC is at (0, 0vsn a.pb6. hw.). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilater6 )y:fw;mxn0:pyuc zrp--oq ual triangle which measures 30 cm on a side.n: -ucumo; -:x6wpzrfp0y)yq What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point chargeav. g +a;ip7pus of +Q and +4Q, which are 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 suvpia 7 ;.g+aupch that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and abd7j3)g 1t g-cwn0 eul +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net force ond-3)u7gwlteg1 c jb0 n it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. 7lj 9g,d,v.ccw fezt fgyb). sw-4g)e Where can a third positive charge +q be placed so that the force on it)j,.e7ctygsg4.f-wfv)wczd eb, l g 9 is zero?

  A copper penny has a mass of 3.0 gxsbi3ab1gv 6 2u )epu.. 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 forcwlz ,6fwm,pn6e of gravity by the attraction of a fixed proton some distance p lf,,6w6n mwzabove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads qx2nil1td1 ; gsz;g; mwhich are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between thdt 1i1smxl;z2g qng;; e threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a chalkyu 3rp kf++ sywyi71k.bp.:rge of +40e. What is the magnitude of the electric field at a distance of 1.0 m fromfy.y.siu1 :3kkpwblp+ +ry7k the nucleus?

  What are the magnitude and direction of the elefu m+dd8xl(f; x2y1jsctric field at a distance of 1.50 m from a 50.0-nC chax m ys1;ux fdfl2j+8d(rge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnites+ua49tk.-ys k k.2nls je plt0*i1g yz,+bc ude of the electric field at the location of the te.l * b py,0ulk9ztceengsak-14+2+ s s. iktjyst charge?

  A 5.0-C charge is 10 m from a small test charge. What is the directioyfh9 oww9 07x m-elt6zn of the electriym 0fw7lx6o99-wh zetc field?

  A 5.0-C charge is 10 m from a smfwf5ri 8wjw/fqbk 0 5+ec- 1asall test charge. What is the magnitude of the force experienced by a 1.0 nC charge kf5 e-qw0wi fr5j bw/a1+f8 scplaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance oqr c6)nkp0m-zf 4.0 m. What is the electric field at a point midway betwe p -n0krmzq)6cen the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of -3vbl-yo7jvb a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm marl-bo7 -v 3jbyvk?

  A 5.0-mC charge is placed at the ;azvmjsglq0-a3p +: p 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 line joining the two charges is the electric field zero?spmvjla0 pg+q a3;z :-

  Two point charges of +3.0 mC and -7.0 mC are 7 np5 l;;cy6pfn0uzdqplaced at x = 0 and x = 0.20 m. What is the magnitude of the electric field0c5nqfd yp7 ;p;u nzl6 at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. p*oi7y*o acdg9 65m:4unye jx The last c9 5ody:ymia7 xnjpe u**64o cgorner 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. C+i fz8*- bojfyharges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.fz- *i8bj+yof0 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 charge ofqu- lo ek-ir76 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this electric fi67o iqru-lek- eld?

  A particle with a charge of 4.0 mC has ag fr*e+vd joy9 4emz ,h3a5b3c 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 elec3 c*v+u7 xc fbsxbr7 n/0wby,:sx)pcftric field of 6000 N/C pointing downward. What charge must be placed on the ball for it tc)y+px0,xncsbu7 b sfxwr* 3f b7 c:v/o be suspended?

  A foam ball of mass 0x b./o/ni;tbt.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the on//;ib b .xttforce of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm/z0qn*z2 huwu2 /nkjs carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's surfaqu wj2h/*s2zkz nu 0/nce?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. +. fc diouhk/km4*k* :mnl +ajWhat is the electric field 6.0 cm from the centnu+ai: m*4 d/jhckko+lkm f.*er of the sphere?