State the law of conservation ofs e/c5*gly-ze*t3t cv electric charge.

  Is it possible for tw9kje7i255 ng/bi ovx ikeufwjq8ko y6-. 7k j9o negative charges to attract each other?

  Is it possible for a positive and a negative charge to attra(r3lq ,nk4yu.mlf ) ;,1e zdz1xvrqz rct each other?

  A glass rod is rubbed with a piece of silk. During trj/ (* 9gdxj+0bcyr/mxz/ivihe process the glass rod acquiresr9/gy c+d*rjzj(bi0x/ x i/vm a positive charge and the silk

  A proton carries a

  The model of the atom shows a3b 1njg,nt k8qq (6jmu

  A neutral atom always ha7; ith4d(ygsns

  An atom has more electrons i0com r5,im o8s+hwf3than protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are q1;:x73.he0 bb-fjzwcscqdj referred .db qs:fzjxbjc0hw-3c 1q7;eto as

  Materials in which the :5qci yih8zl ht2mh) ;electrons are bound very loosely to the nuclei and can move about freely within the material aret:i qmh5hc ;ylz)i8 h2 referred to as

  A negatively charged rod is btughgwy- 6 o17pl m/*vrought near one end of an uncharged metal bar. The end of the metal7w*-vghp1glyuo6 m/t bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B isg:ir3 p1ny )gl neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which st)g3ri gp 1:lnyatement is correct?

  How can a negatively charged rod charge x(qfkr1s5mq ny xd-n15yz c-:v3 j3qian electroscope positively?

  An originally neutral elr-s l07 8dda +/cm-5jbolem3 naj5p1jn 2 busvectroscope is briefly touched with a positively charged glass rod. / s8jl 7 d10- l2mnsv3p5de-ujjbm+ 5bncao arThe electroscope

  An originally neutral electroscohr40 mdhh 6wotm:u 83jpe is grounded briefly while a positively charged glass rod i0:8 rhouj3mdhw 4tmh6s held near it. After the glass rod is removed, the electroscope

  A positive object touches f)o9-ujepxf+1 5o0xq le3umw a neutral electroscope, and the leaves separate. Then a nelxx 0fp3ojw5e91e-+ mo )qf uugative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object j-g4)z.c;ln8 kdm ysxt5n( 5xrk+wf:nvaws+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. What is the final charge on -f5n.n wkgz5kns +x4 t l:xs(cyja 8v+w d)rm;each ball?

  Charge is

  What are the units of the Coulomb c:af za2p5 0 f-+gyu .tpxoh7vm5j iakr2c6af. onstant $k$, which appears in Coulomb's law?

  Two charged objects are separated +teq /o16 vwjuby a distance d. The first charge is larger in magnitude than the second cha/+juew 1tov6q rge.

  Sphere A carries a net charge and sphere B gpd3 ij8 o)( 9hzkzxu(is neutral. They are placed near each other on zxi)j9d k8pogz 3(h( uan insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certainwly3 jt *:*nmfael3v1 force. If the charges on both objects are doubled with no change in separation, the force between3et ymf*wa v nll3j:*1 them

  Two charges are separated by a di.rvc e(2lk ,aostance d and exert mutual attractive forces of F on each other. If the charges are separated by a distanro, (ek.c2va lce of d/3, what are the new mutual forces?

  Two charged objects attract each other with2wekg6: n8tn :c0xec:hrmf4q 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 orintrg0w x6:q:c:4ef cmh 8ne2kginal value? The force is now equal to

  An electron and a proton are separated byo6pv6 jxttpq). b )n6c a distance of 1.0 m. What happens to the magnitude of the force on the proton if a seco) tpv6bcj6.xot6p )qn nd electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens t9 jil9iyi g58el-1zmx o the magnitude ml5 -z9el8jigi1i yx9of 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 ds7aorx3*t g4u-qs c -o1/hwppens to the size of the force on the proton if the electron is moved 0.5a/37gx w1- prsd4t*oscq -ouh 0 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second po9sv-(la /d,z gu5flszint 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 squd (ll/zf v9u,s- 5zgasare'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 isvst*mo g5f srw,rp,n b1., +dm placed at the centroid 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. Wbpmvfsr ,s, 1.n,tomrg* d+5w hat 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 followiwsoi4xq2 bp7j,/a7xv2b3 t9xu pu ye* ng is not a vector?

  At twice the distance from a point charge, the strength of the electri 0ws8 l7 ae hg(ah uw7e+5 s-e+zv3,iczar4emdc field

  Is it possible to have a zero electric field value between a negative and positcwiv 8cq.y;x; ive charge along the line joining the two chargecc;.; yiq vwx8s?

  Is it possible to have a zero electric field value between two positive +evupk(5f1 h 6hgtz0qcharges alongh0gh1tq uef+v z5p(6k the line joining the two charges?

  Electric field lines near psiti:1b rkx 4nrr)sve point charges

  The electric field shown * 5 ao:npj. dnk 3b-otfxi.j(h

  Can electric field lines inters7txot+j-r5 -svm 02jh7vx suject in free space?

  A solid block of metal in electrostatic f 9k54w5fxbbkequilibrium is placed in a uniform electricb x5w 5fk4fk9b field. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hw;)uw2c5u c5a-j ua)tm egl*)rjoctlo +/s9collow metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and t) j2ajoe)/wwc l c 5rmcut os-g+;)a95tu*lcuhe surface is

  A cubic block of aluminum rests on a wooden table in a region where es 4heipe*45ja uniform electric field is directp4ee j*e4 shi5ed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electrtju 4 j:czcl7tz4.2ldic charge

  A positive point charge is enclosed33r (*h- vj.hplpvl*ukfa cl rah/arqb:v+ /- in a hollow metallic sphere that is grounded. As compared to thaf3ah* hvvh*kpb 3l a/(rr:-v-u/p cq l.rj+le case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in stati+(i 6bpo3imsq 0656*avqte tt5kckd nc equilibrium.

State Gauss's law.

  The charge carried by onri+th 3cvi0.he 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 ele)k4s cqm83.h1/lxkap, e tznduf0eha h2 */ssctrons does this piece of plastic ls t. za0e3mqda fsh*, 4 /chs1)xe pnhk8ku2/have?

  What is the charge on 1 kg of 0szhajj2/w,u 1 1jpvbprotons?

  An atomic nucleus has a chargcq vso;a7wh2bw0(2t se 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 -4.1obh v8v u* ks 5njf6nc vep9( /rfdn-yz9(r9s0 mC, respectively. What is the magnitude of the electric fo hd8e9ns/ *o(vpf(nkrsfn1yr 5bz9jcu- vv96rce between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweenmmz0wk4 4w*fcr/ 3xg/4htpt6wh rs9r them is 1.0 N. Wrw6tx4hgw*prh3/w m4m4tf /r z9 sck0hat is the magnitude of the second charge?

  Two 1.0-C charges have a force between the8j8 uliri lijos 52;pm/z..n sm of 1.0 N. How far apart are they?

  The force between a eb2:(iq3oorlj5 t g q *1zjtv+,* rsiz$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experyqp cbk 0(;1 gg,8kgteience a 1.0-N force. If they are moved to a new separation of 8.0 cm, wha8pb(;k 0 1tgy e,gkqgct is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the xvf0a3vbq5ch8 -axis. The 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 the elect av3fh 08bv5cqrostatic force which acts on the charge at the origin?

  Three point charges are placed on the h jm/tlgt*p89 xre:qj:+2z/twbjbz 4q 1ga8 n 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 the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge atgqwhj :jgn j 9zbpet+/zl /r8m:at8b24*x1 qt the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC aebn -d5zo zh 13n+ zua7uv2m:pt x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.0 ezz7n13obndpv + zu-2a:mu h50 m. 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, anpeogxbb;s 6o(*w ik). d 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 kos e* .(bixo)pbg6w;third charge of -Q is placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m1yq;fut h1e2aby x)x ;, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What i;ux; e1y hbfa2qy)x 1ts 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); Q3 = 5.0 nC is uh)4 tr sqv-l;/; eqdaat (0, 0). What is the direction of the net force on the 5.0 nC cu4 a dv; ;el-t/)qqshrharge?

  Three identical charges of 3.0 mC are p/.2ziq;z,(r frou9xp- mtggh laced at the vertices of an equilateral triangle which measurzi;g9m ph (zu/f-qrrt.g2 ,oxes 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 ,* gblh(yk po)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 such that the electros kby ,(pghlo)*tatic force acting on it would be zero?

  A +3.0-C charge is at the origwj*4:yp0kr z yin and a +9.0-C charge is at x = 4.0 m. Where on the x-ajyy zk 0r*w:p4xis 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 at x osiql: :5a( vy(g n2dl= 2a. Where can a third positive charge +q be placed so that the force on it is zer:nlgq5ivs:yd ((lo a2o?

  A copper penny has a b*d6cc oi/ve+mass of 3.0 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 force of fl2f w3ifdy6ig3 h:3sgravity by the attraction of a fixed proton sodfihy 2 fg3 ls:6i3wf3me distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by 4-oq +4bomqx rnonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic r+xomqq44 -borepulsion 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 the electric l5chjev (1rc1t4)nl o .j4lecax:5)d )tf vjkfield at a distance of 1.0 m from th e)1 lcc1f4 vh.rev4 ot5)jja)ldnl5t:kxc j (e nucleus?

  What are the magnitude and direction of the2us,:ifk hblrf)x-k/ electric field at a distance of 1.50 m fror u ,l i)x:fsh/f2b-kkm a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small tesrs lm,c76ea*at charge. What is the magnitude of the ecer,67malsa* lectric field at the location of the test charge?

  A 5.0-C charge is 10 m from a small -m -),usbswq mtest charge. What is the direction of the electric fielm) -wusqs b,-md?

  A 5.0-C charge is 10 m fromn2- vq)spzl0zwf6a g8 a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge pl-0n68pqwfz la) sv g2zaced at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distance ofnwitk4j-v tpc)yg h1;z6m vbn q7m8-) 4.0 m. What is the electric field y1z-;nttqhmi68vm p cnk-)) v wbj4g7 at a point midway between the two charges?

  A 5.0-mC charge is placed at the v88qm:m:, qvy7r xzbg m+ 0inr0 cm mark of a meter stick and a -4.0 mC charge is placed at8 q+ yvrnmrm:i,bqzm8v:0gx7 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 chalfgkl59+0;y m a 2+0ymbipm y* 5gkhvtrge *i + l0bfg5lmkypygvy2hm t+9kma;50is placed at 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 ie/)/+ wtfyq.vmsqe .mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electr)ty +w e. vmq.eq/fsi/ic field at the point midway between them?

  Three 3.0 mC charges are at 0 gz *konk1dy.the three 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 o0d.g k1kz*nythe center of the square.

  Consider a square which is 1.0 m on a side. Charges are placy gpo-8mjrlig.m8lu8io 9 +4 y2gk ed9ed 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 theyguji.d8m e+g 2l8gkmo49poy -i8 r9l electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is plt m-x j.ez4si0aced in a uniform electric field. 4.iemt z-jsx0 What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass c5 nzr3qu m4fg.zk1 ub**zlz;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 elec l;u4dus)88;gn 77eac ttw2z so tui;itric field of 6000 N/C pointia87utd7;;482u tgtnwu;isil)o sz c eng downward. 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 -2.0 6kopac7p/kepz2 1 z/(mkyy lga q.1c/0 nC. The ball is placed inside a uniform electric field, and is susp/c p.gakz6/lq z(kep/yy 2 11ma ockp7ended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. kj(z bc j4cb47 What is the magnitude of the electric field 5.0 cjb7bjzk4( c4cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the;gtm9vla7q- fdrcgh, -5u g0w,h:r m5ulw4rf electric field 6.0 cm fr5ur, rhl-tlfag4v- g 9mc7;0rhu m: 5 w,fgwqdom the center of the sphere?