State the law of conservation of electror( kc/0xf7okic charge.

  Is it possible for two negative charges to attract eafbsqi (/yi to0(1vt: scl n5:qch other?

  Is it possible for a positive and a negative ch2rb ie +e3ysgp6,xc:dg rjm:(sk*mf 9arge to attract each other?

  A glass rod is rubbed with a piece of silk. During the procen ,ls9*3g djyulb(e+u ss the glass rod acquires3u n, e+(sdgyl*lb9uj a positive charge and the silk

  A proton carries a

  The model of the atom shyd ,i)g/8uk5g 8 kaophjd mh39ows a

  A neutral atom alwayptan1q - mlqdn8wyci9(-:. olcj 9z3ws has

  An atom has more electrons thlarpbf1+y1tubq; 9 d4an protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are refer/ctpo 8fc1bn:teok )+red8tc+p1ne fk/otob: c) to as

  Materials in which the electrons are bound . :mqquyqjxr (t z)m29very loosely to the nuclei and can move about freely within the:9qrjuq)m y.2mqxtz( material are referred to as

  A negatively charged rod is brought near one end of an lsc ar5i*hl,l2 it ,-euncharged metal bar. The end of the metal bar farthest froca*r-t ,lise l i2,h5lm the charged rod will be charged

  Sphere A carries a net positive cha) 1olfa3bmv t)rge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly ) )btfolamv13 touched with a wire that is grounded. Which statement is correct?

  How can a negatively zk+r;rg r ku66charged rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a pqnws rq 9hh6:,ositively charged glass rq,n6:hhrq w 9sod. The electroscope

  An originally neutral electroscope is grounded briefly j)*k,-li9qu0djici ;lbc2sa while a positively charged glass rod is held near it. Afte liiak*- csub0q;2il c9)djj,r the glass rod is removed, the electroscope

  A positive object to6hgw0z +y, wk)eq*ix m9k5owzuches a neutral electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens t09+,kzwmy*ewzh)5i 6qw xg ok o the leaves?

  A large negatively charged objnd pq3l;8 0gvmect 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. What8lm 0;3vdqpgn is the final charge on each ball?

  Charge is

  What are the units of the Coulomb const1 jqh(l 3/yzxkxr9/ vpant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d.n whtfhg*b)u6xdh1 6is3 km( - The first charge is larger in magnitude than the second chargh6 gxnk) -t3fbum*d 1ws(hih6e.

  Sphere A carries a net charge and sphere B is neutral. They are plac2s4wpsc a4d-g 0 fquz,8udx/ked near each other on an insulated table. Which statement best describes the electrostatic-u8ucpsg4f dd42qa ws z0k, /x force between them?

  Two charged objects attract each other with a certain force. If the char ril+ nf(),-bwa o 0mt;r2vbncges on both objects are doubled with no change in separation, the force ,l-cvrnbmfnoria (w2)t+0 ; bbetween them

  Two charges are separated by a distance d and exert mutual attraczylv :1z)wxv,s) ju 1nz1/s mttive forces of F on each other. If the charges are separated by a distan 11l:u)jwmszyv1nszv)t,z x /ce of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the foq50to:pv 4 ln:x mf,(orljn;brce between them if one charge is doubled, the other charge is tripled, an,:o rv nq 5no ptfj4lx;l:mb0(d 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 distance of 1.0 m. 2bbg ss x t-l akf b8k6(ss3p:h9seq,2What happens to the magnitude of the forc9hts lb6fpbk b2 e2s83-s ,sq(axg:ske on the proton if a second electron is placed next to the first electron?

  An electron and a prh32yq-a5-g v,nb 1r2 ic kuowhoton are 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 next tn3r 2hbh ygo2wca- k5 -iv1qu,o the proton?

  An electron and a proton are separated by a distance of 1.0 m. W8vzdy7w 0l6o* xoy0hsagv x +j*a r7,ghat happens to the size of the force on the proton if the electyd7xy v7**60 ar+x lvh j,8go0zgasowron is moved 0.50 m closer to the proton?

  A point charge of +Q is placq01j4 o,e zyrged at the 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 of 2.0 N acts on tz0rgyoeq j1 ,4he 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 tmr7tdgo5*ic tx-6 p m7riangle. When a second charge of +Q istcmd mpgr-i7 5 6*xot7 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 irk hld1g5uk.j9j ,i x*s not a vector?

  At twice the distance .j gcdhx*74l 5vvn)dqlhu/hp: w3+w d from a point charge, the strength of the electric field

  Is it possible to have a zero el9m 3n1v*viu s*y sjqbsks90s*ectric field value between a negative and positive charge along the line joining the two sss 3 vusyv*ni9*k0q sm*1bj9charges?

  Is it possible to have a zero electrichxw1sw 5n6am,s 6y ,pq field value between two positive charges along the line joining the t,6nxh aysw6,wmp qs 51wo charges?

  Electric field lines near psitive p 3gnn7 ;y:v0qtj:h1+xyifxgpl- iu5 qoint charges

  The electric field sszqtsu *)m*t7hown

  Can electric field lines intersect in free spaceu6 yhrfauy:;/ hih a6:?

  A solid block of metal in electrostatic equilibrium is pl qqtxk58 0/) hrt vw7ku54bmzaaced in a uniform electric field. Give a statet7 ku0m 5rx8bh5z/wkvq )ta4q ment concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters av6nh78vhq8w 22wr ckxre each given the same charge, the electric field (E) midway between the center and the surface ichn2 78k2wvrwh8x qv6s

  A cubic block of alumaxsvn16 1q lj3inum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge lvqj6nx11as 3on the block's top surface?

  If a conductor is in electrostatic equilibrium near an electric char*r,8h8cika dtyi55r;hf usc-+ (pm zq ge

  A positive point charge is enclose xsg * vtdy3k85bw,+jod in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field akdt +,w5g xjby3osv8*t a point directly above the hollow sphere has

State three properties of conductors in cyd 3:d73lm45(sbyvwrf)az u p(vv p0 static equilibrium.

State Gauss's law.

  The charge carried by one electron iuammd9i z01 5hs $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.00p 1f4 cq8tjn+m mC. How many more protons than electrons does this pi1 m8nc+ ftqj4pece of plastic have?

  What is the charge on 1 kg of proid3 0xkktp-so7x 6f5 etons?

  An atomic nucleus has a charge o/yvo l,)8ong d5 n29)xphj nbef $+40e$. 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 q txytu0v9-ob *,+ztp mC, respectively. What is the magnitude of the e*v 9ttp0ox utybqz- +,lectric force between them?

  A 1.0-C charge is 15 m from a seco38 hxr9+rv. e4wqjie qnd charge, and the force between them is 1.0 N. What is the magnitijv+.ex 4 hr 8ewqr9q3ude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How farvl0xn7pgt jscff) . go6+p,.r apart are they?

  The force between a a-6yn. l4d*ul dwpn6af0 gbl.$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience p6)1t izzs;7ryzr qlyok :9 e-a 1.0-N force. If they are moved to a new separ:kzo7e pyqr9ziy)r t 1 ;-lzs6ation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axi zs0m,:( ps2 wyf3qcdis. 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 dw, i0(2d mpys:s3 fczqirection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is placed zv y5r4h puy(7at 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 directi74pv rhy(zu 5yon of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at x eo1r4 6e(vjsh= 1.00 m; Q2 =(16 horve4jse 3.00 mC at x = 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 placed at the center of a square, and a secom lk;pu1*n/lnnd 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;nm/*lk u1pnl 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-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 =oc54xik:7nw5 u*2lpp w qm 9bg 5.0 nC is at (0, 0). What is the magnitude9q:gw wncmi5*2 kup4xo5l b7p of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Qf*:jfva tn.3y2 = -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 chargent v3 yaf:*f.j?

  Three identical charges of 3.0 mC are placfsx1b (pl3-i)7pzsex 6tb77h p* ( tk nynbqm(ed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the chaks lt(i3(q7h 7xzxyb b)f- e p t(s*np17pn6mbrges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what pom z4ic8d:p1o 6l 6wl muxx-pk(int, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zerl u6oxz:1pw8lkm4 p-6cdi x (mo?

  A +3.0-C charge is at the origin and a +9.0-C charge is aqpcjit ok m yxz:*xq t(*gj.0/43* oiut x = 4.0 m. Where on the x-axis can a third charge be placed so the net foro3(:*j*itxoq pi 0q/k mg.*jy4tzcxu ce on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a2j5x +busb1(o-q g kjg. Where can a third positive charge +q be placed so that the force on it isx 5q+kb j1g2sjougb(- zero?

  A copper penny has a mass of 3.0 x.s fn6y;hs( quhd9 bno8 9;bdg. 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 the attraction of a fi6 ;owpnvutm.dexx ;d 1n -+b/xxed prot;tx1 p -m/x.odu+6nd v ;xenwbon some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting thri)-7 cb q dyft5q(xu5eeads which are 30 cm long. Both are given identical charges, and the electrosta)qc 5 7yxb5t (edqfu-itic 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 the electric hn0udurj70kv *:r87 e)ky8 vpl*o g rqfield at r* 8p8)*nk7v7kjudhol0:0 rgvuy req a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the ele t flh,1;nw) .7ya ,trlucl;y tpb51vjctric field at a distance of 1.50 m from a 50.0-nC c5ul)tw ;pt lv.,c b hr71;ftnl,1jayy harge?

  A 5.0-C charge is 10 m from a small test charge. What is theijpf 9n46zi 77w eoo1r magnitude of the electric field at the location of the i9 7fijo76rwen1 4opztest charge?

  A 5.0-C charge is 10 m from a small test chara43r 4b8 9oko-*alygwif7uygge. What is the direction of the elel-kg4 3ua9yag74ybfo ro w* 8ictric field?

  A 5.0-C charge is 10 m from a small test charge. fm7d-)z ;efde 8f4:f2)rean)uo unycWhat is the magnitude of the forc8decn; :z)-ae)mur)yf 27n defof4 ufe experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a vhlhi9s9n6)z calue of 3.0 C and are separated by a distance of 4.0 m. What is the electric field a9)c9hh6s n zlit a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC chatew::tvfog tq;gg*26 k5db e h z),2jarge is placed at the 50 cm mark. What is the electric field at the ;5g2h,:)o qtvjf a :6 gke et*gdwzt2b30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick,s/g6( t y3sbqxbqnh9 and a -4.0 mC charge is placed at the 5g693 q/qby b(ts,x snh0 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 at h1 ,/e0wjyl2;ju(f sfmxzb w6x = 0 and x = 0.20 m. What is the ma; 60h2, jfflyxw( bzemujsw1/gnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three7aj6 d)q2ba rw corners of a square of side 0.50 m. The last corner is occw2a 6)jd7q arbupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square whie:3s vz /huda,ch is 1.0 m on a side. Charges are placed at the corners of the square as : evsuz ,h3/adfollows: +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 the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when it is placed in a uniform el j9y0l.mkxv sj4g5vo3dn3 ak6ectric field. What is the magnitude of this electric fidjkk5nox yvm0vag.34s l9j63eld?

  A particle with a chl0aljtfa uh)- g) rs+t rm)ab-)z0x:h2 ohja.arge of 4.0 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 i 7luz ,gv 1mx5scu7)den an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for i,m7g7 lx c5ezu1)dsuvt to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2jbd i bpu(w kz3hc;f6x37ye (..00 nC. The ball is placed inside a unifo(dbhb3xzfu6j3i y e;kwpc. (7rm electric field, and 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 a charge of +2.0 mi .tc 3ue m2b;d5bd :tnx,ts5kC. What is the magnitude of the electric field itbcs,3dm dxntu2 ; teb :5k5.5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is the eleca*02q 9h1wo u5(am t.yyayibcd(aj 6ftric field 6.0 cm from the center of the coq*0hyfa 9 2 1(uwi a 5dmby6ya.(jtasphere?