State the law of conservation of elet+3o3pna4c 8xk w i4mictric charge.

  Is it possible for two negattsvy(o;ei*u 4 ive charges to attract each other?

  Is it possible for a positive a*nq9.0 b7 sqkojtp8i9 3tuw.tpyf5z nnd a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. tsrt-sbt :(y by+(.bo During the process the glass rod acquires a positive charge and thrby(bsso t t+-yb(.t :e silk

  A proton carries a

  The model of the atoqhhfa fdzs42b(43f2 3jsu3p w m shows a

  A neutral atom always6mpw e7. xxr:b has

  An atom has more electrons teezjj),3nt-wwpgzy49p q - m;han protons. The atom is

  Materials in which the electrons are bound l5dzdmz 7hw(fqr4umy 8(+ vuaa31x3a very tightly to the nuclei are referrefd um(38ly4q +m 7zzrxa5 dah a(u1v3wd to as

  Materials in which the electrons are bound very loosely to theczkmdy6- q i5t, qc67f nuclei and can move about frefc q6 -75iqkdt y6z,mcely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged meta 7g2(uz/. f2egp/x grpagcm(cl bar. The end of the metal bar farthest from the charged rod will fp g/u(pe2gx(.2ac c7m gz/r gbe charged

  Sphere A carries a net positive chaj:p(rk:ww4rawdbu ) -rge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched wit:-wb4 (wdk:rwpujra )h a wire that is grounded. Which statement is correct?

  How can a negatively w5hprbht*tlj7r347t charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a po .i81aobi ;lotsitively charged glass rod. The elei abti81ol. ;octroscope

  An originally neutral electroscopmg 0562fhvy wpe is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electros5f6m ghv 20ypwcope

  A positive object touches a neutral electroscope, and the leaves separate. Theh/ h.+c evwml.n a negative object is brought near the electroscope, but de.w m/cv+h.hl oes not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutraxa;;m.m qxma9l metallic ball rolls straight toward the obje mxm;;.xm9qaa ct, 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. What is the final charge on each ball?

  Charge is

  What are the units of the Coulomb constgkq22 1o(sgdn x8wxiv h4(2v5n geo9 lant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. Theap l e4df t9,3oa:;cuzo ngm.0 first charge is larger in magnitude than the second cgm4uzap :eatc lo.of0 3n, d9;harge.

  Sphere A carries a net charge and sphern;th dq e0q tndo :/:uc68qyu.2-qgefe B is neutral. They are placed near each other on an insulated table. Which statement best de8ctu .dh:6:ufg q;ne0nqoyqq2d/ te- scribes the electrostatic force between them?

  Two charged objects attract each other with a certain force. ygt: yd+7nrqo t.r (;v If the charges on both objects are doubled wg yy7(n:t tr+v.;r qdoith no change in separation, the force between them

  Two charges are separated by a distance d and e) nk /tgvijxxx;d(lt4ve-54qxert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutugjk (/ve;4l -n4vtdqx 5 ti)xxal forces?

  Two charged objects attract each other with a force F. What hapon9ltngz 8 i46pens 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 itlgnn89o z4 ti6s original value? The force is now equal to

  An electron and a proton are separated by a distancb3 pj,(grp yg85 zm,qqe of 1.0 m. What happens to the magnitude of the force on the proton if a second electp j583g q(byrm,q ,gzpron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What hapsa*hokx8r-n53-7hg r i 8tyrmpens to the magnitude of the force on the first electron if a second electron is placed next to the proton? n8-ah-8h3yrm rs xi57 rtko*g

  An electron and a proton a2 1sgj fme2 :gsha:smr456gmqre separated by a distance of 1.0 m. What happens to the size of the fgs:mh45 fm2jsg ra 2q:sg1em 6orce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second poixd6i 1s*89: jspu5*fg vj0yvxo2nmfbnt charge of -Q is placed at one of the square's cornd 9*6 jjfmbi: py0o8g sxu v*snvfx152ers, 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 square?

  A point charge of +Q is pla/ ,j2y),o19nr1wsh2l wim t37x i cmv,iroejp ced at the centroid of an equilateral triangle. When a second charge o/cn)71oj x y2piosw,,i13mi 9 lrtev h2w,jmrf +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 at one of the other vertices?

  Which of the following is sxhq2(b; if)2otprn0w,rck 8 8.hmljnot a vector?

  At twice the distance from a point charge, the strength of the e x /;ze0hg4z)auo(skplectric field

  Is it possible to have a zero eles /3ik9fho7 dgctric field value between a negative and positive charge along the line joiningfgk9dih7 o s/3 the two charges?

  Is it possible to have a zero electric field value between two ( kh j23f/i ns)ox)gp( pk8 izobn6d9bpositive charges along the line joining th8dp gph3nszf ik2x(6boo( /) 9nj kib)e two charges?

  Electric field lines near psitive point k n4o-tr6 lj:ocharges

  The electric field showdu edz d*w ls7c-+f 30e1e; up-i3klbjn

  Can electric field line b/p- bbnsa6n+uyy6(ps intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform ele/ll6 qv) 6)mwnuz/db5 n ggh:kctric field. Give a statement concerning thgvwlm u6/:)6b5 nzl/k)dn gqhe electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters art0:o4q g1es -5:kv6wksj)wh.co g kcle each given the same charge, the electric field (E) midway between the center and the surfaceg-hc s.:w0ktko 6)sq: g kl jv15ew4co is

  A cubic block of aluminum rests on a wooden table in a re9o z udmjnx+b*+8 zb;ngion where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surfacez++ ubxjn ond* 8zm9;b?

  If a conductor is in electrostatic equilibrium near an electric c ppk/uf z;-;f7oyi op9harge

  A positive point charge is enclosed in a hollow metallic s qu 9.jcufxn8hn3eu z53beugw6 u2i ;7phere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above t;bqixnf63hu 3 2w .u9zuneucjug 8e75 he hollow sphere has

State three properties of conductors in static ev9im0xfbv( 6f 41bu hrxo1; gkqa9df 6quilibrium.

State Gauss's law.

  The charge carried by onex yz,e(v1e :fi 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 .pi78ez v .typ h8k3ccthan electrocvpk8h.3 yzp .7et ci8ns does this piece of plastic have?

  What is the charge on 1 kg of protox3 oh-l 6jfbm-8-+w5xvbziyrns?

  An atomic nucleus has a ch*ti;mw+ttg3+ 1uq cj harge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, se)y(k0dyw)k 5dh1cduc parated by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the electy5dcck1wu ydh )) k0d(ric force between them?

  A 1.0-C charge is 15 m from a second charge,3t dwqorc 68/o2 s hmnrxo.0;kv:j7ui and the force between them is 1.0 N. w68n. 2ou0o t 3x7/r i:rh;qkdcjmvsoWhat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0t*8qa. ba dyo)s2:8ozr nhz:g N. How far apart are they?

  The force between a t .5*yhv- xfrt$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, e04:aqd:5l ykbwo -k s/6yh9jft 8qegfxperience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force bsd0k y9 q5 fywo8ga/::fhkqjtelb-6 4 etween them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first cha7hjx hef+ ha) a85z ,t0qpvy6yrge 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 elej0zaptah6 )7y,yvh ef+8h x5qctrostatic force which acts on the charge at the origin?

  Three point charges are placed on t.m nq n/n2s5ijhe 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 tm/ 25nsjinnq. he 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 the fo ,m2 skut:f o(rcs*)czllowing 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 magnitts:f,scku *( c zm2o)rude 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 pa 7)wmysfykv79z 2mp* oint 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 actpfywsk zy2 9 a)m7m*v7s 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 = -11c3tpvf/(c nj 7qgt6 drh3qw;.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net h1j 6q7/rvd wt3gnc( ;fqpc3tforce on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q* 3o ox:omzfzllgx37 i2 g 5;k3m 2kftuld*n2w2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC chargeul 7m ox3 *lgfdo :;52mifzk2l33 zokgxtw2n*?

  Three identical charges of 3.0 mC are plac xio,o hw;/(hl8d4tx+pu pd ,ped at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude o+x ;i4p8x(w oudlp/t, hd pho,f the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 uk k4w //azv3um. At what point, on a line between the two charges, would it be possib ku4kz/u/w3vale 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 k17x *hhp 2 ; u4ewpt,fdqzct6x = 4.0 m. Where on the x-axis can a third chargptwx72;d cukhze6hf, p*41qte be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 24ibx;wiuszr8 ox5x9 0a. Where can a third positivx i4uwxoiz8 r;0b9x 5se charge +q be placed so that the force on it is zero?

  A copper penny has a mass of w -4qs)c*rtb q3.0 g. 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 focz yq.dr w01; omv(g8nrce of gravity by the attraction of a fixed proton someq v( d 01or8gmzwn.;cy distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point byihag (* wrx1o2 nonconducting threads which are 30 cm long. Both are given iden 1i gaw*(xhr2otical 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 iuis1d6 i3imnq(+9a bmagnitude of the electric field at a distance of 1.0 m from tn1ua 6idqii bm+i3(9 she nucleus?

  What are the magnitude and direction of the electric fi5 8ko/pei-oj30ew 3- bvwmjyx0 bhj4keld at a distance of 1.50 m from a 50.kjj3 woih 05e4- pb3-ebvw80jkx/myo0-nC charge?

  A 5.0-C charge is 10 m from a smt5 olxbm t0ip9f+yfeo 7(pce)lh1; n*all test charge. What is the magnitude of the electric field at the location ofo ney (9*ble pmc)1tl of0+phf;xt 7i5 the test charge?

  A 5.0-C charge is 10 m from ip-o dc1ixm1i.(zqk -p qtpa g,i*-.ca small test charge. What is the direction of the electric field czicx -a-i*op(. i, -mp1ki g1pt.dqq?

  A 5.0-C charge is 10 m from ,i ugedw8;0 xebcrr.2a small test charge. What is the magnitude of the force experienced by euwx .8er,gidc;b2 0r a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a d hr2*9f besjj/istance of 4.0 m. What is the electric field at a point midway between the two charhbejr2/s *f j9ges?

  A 5.0-mC charge is placed at the 0 cm mark of a metv rbdl b; 8/*hz;yim.vwht+* aer stick and a -4.0 mC charge i/+mvrhib zy twd;l** v.;bh8a s placed at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed aliops ,j:6e h;t the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 ; h,sl ej6:iopcm 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 at x = 0 and x = 0.20 k (:vd+g sni.zm. What is the mis(:ngz .kv d+agnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thr ( 1uluir:lp(o8lj+tqs60y zqee corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the center of the squrlq0: 6tsuj(lou8 1+liz y (pqare.

  Consider a square which is 1.0 m on akj 7iiu 9blae+br1; r+ side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC ek b9ib7rlaj;1 iru++ at (1, 1); +3.0 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 bxi) q/md2 lm;un6 u4jon a charge of 5.0 mC when it is placed in a uniform electric field. What is the magnituden dj)qmxu um4/6;2lib of this electric field?

  A particle with a charge of 4.0 mi)aj25rwd2 s 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 fieldz7uqdc5yy + ujp6ao) 0/1 h/ wklpwc1t of 6000 N/C pointing downpw60 day uyj/)qu o5t/11hplc+ zcw7kward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC 6ouvhkr/:zd(3enc fr3t3ot pj h70-m. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitr6- jro/3hd:vkh7 330 o pcmentz( utfude and direction of the electric field?

  A metal sphere of radius 10 cm carries a chargn.sw w7ml7g;o: qj9eg88 rbjde of +2.0 mC. What is the magnitude of the elec8sjg 9j :w7 dbwn7glomrq 8;.etric field 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the ev8mpn);fn ejn s 0jhp::jg1xc 7 yz4f0lectric field 6.0 cm from the e cym0f:n0nv;psxj):pnzjgfh78 j14 center of the sphere?