State the law of conservation of electric charge.c+vx 7 bi2j+wdyi0i*m

  Is it possible for two negative c ok:n7 tegt(bnv9wvn1 v5 gsi097 ss)uharges to attract each other?

  Is it possible for a positive and a negative charge to attract each o1 v m6zrjkku+qvp.)tm3a2 :p vther?

  A glass rod is rubbed with a piece of silk. Dur0eu ed,g .q3e4zgad9king the process the glass rod acquires a positive charge aduega4ge e3dz,.9kq0 nd the silk

  A proton carries a

  The model of the atomx uy6njycne8-i9,0u; l wzy(b shows a

  A neutral atom alwaysckf l/qg03ne59mf e s: has

  An atom has more electrhk(( + --af;hyereyx-+a0 ruwot wb/y ons than protons. The atom is

  Materials in which the electrons are bound very tightl3. mthy.u;6 xbjhj0 svy to the nuclei are referred.yt0b; h. 3hujms6xj v to as

  Materials in which the electrons are bz8hyn0ub 8( gmu)4qt xound very loosely to the nuclei and can move about freely withi zt 0bqu48xgynh8()u mn the material are referred to as

  A negatively charged rod is brought neas0m0,(0vaoe8xpax id 1 5lwkir one end of an uncharged metal bar. The end of the metal bar farthest from the charge5wd8im(axe ik0 ols vx0,01pa d rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They are8lhgx p) iz2ps7joh:) placed near each other on an insulated table. Sphere B is briefly touched with a wire that ishl7oi h xpj2:sg8z)p) grounded. Which statement is correct?

  How can a negatively charged rod chargen( te1 95.kb8bss eito7lio1 w an electroscope positively?

  An originally neutral electro/ky.hn27e fc zscope is briefly touched with a positively charged gl7.yf2 z knhec/ass rod. The electroscope

  An originally neutral electroscope p)ab+roaz1 ) q*b om4ois grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electroscoooa1m pr z)oqb a*b)4+pe

  A positive object touches a neutral electroscope, ankj rh*16rc,b mb tw-6xd the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the l6 b hjt,mkrrbw-* c61xeaves?

  A large negatively charged objectr1pd; q8fv 1ts 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 eachtfdr vqp8; 11s ball?

  Charge is

  What are the units of the Coulomb 53r , +v6n/lrzxdde/n 8gogukconstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. t t:llzqua6yx/)+hu k uqo31wqx4), mThe first charge is larger in magnitude than the second charge6ulqqxqlt zwy/u3)o:1+ )xkmh u4t a, .

  Sphere A carries a net charge andr + (3ijtd-lpo sphere B is neutral. They are placed near each other on an insulated table. +-li(3t ojr pd Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certaw2 3zb40tlov3oxi ,rr4,ufty;9 jpctin force. If the charges on both objects are doubled with no cbw4tflc2o9,4rutrozv3 tij0,3 yx ;phange in separation, the force between them

  Two charges are separated by a dit 0 oez3:i6asastance d and exert mutual attractive forces of F on each other. If the charges are e3 :aiotz06 asseparated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force 3n rap2 az d6xqeb *fb5wv60t5F. What happens to the force between them if one charg3av5 6b 25aznrewt dp06qfx*be is doubled, the other charge is tripled, and 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 he4woxs 4w;q b3xw*5 sby a distance of 1.0 m. What happens to the magnitude of the force on the proton if axoww3e* 4 ;sh s4xwb5q second electron is placed next to the first electron?

  An electron and a protof v9j.8ipujj y8:bkb20 qgqp:n 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 n2f8jk vjp :jg u98p.q:0bqbi yext to the proton?

  An electron and a proton are separated by a distanazp.b tnm thz ;/67u/vce of 1.0 m. What happens to the size of the force on the proton .tzpvt;u6hnm/ a /z7bif the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of aw 1hxh 1s-y7cf7wipm: square. When a second point charge of -Q is plac-i x7:ms 1cf7p1hywwhed 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, 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 twr)5)za dcp bwg0f q/cv .3x4griangle. 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 forc0cg /) zd5rq vf x)3pw.4cgbawe that acts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following isg j *w4/buqsn0 not a vector?

  At twice the distance from a point ch-nv ex50wmb,x7f6ahnx;4qvx ib91 a x.3 smiaarge, the strength of the electric field

  Is it possible to have a zero electric field value m nma3hc- g3e-6ndc0u between a negative and positive charge along the line joining the two charge36n-un c0ma-dm hg 3ces?

  Is it possible to have a zero electric field value between tw 8etyoy* jx5:pg-hro-ssrk:ne f(61 a o positive charges along the line joining 1*:kp rs ey-atf8y jgs(reho5:-n6x othe two charges?

  Electric field lines near h9st+41jcnmlsk hv+*mb(7 ks psitive point charges

  The electric field shown 6ja2, u3ity4 i7ujmh(h,q wqf

  Can electric field lines intersec hm 8a (bnpd*2w8ppq-rt in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elevc7evy fi/el7jx y* 6,ctric field. Give a statementye6ix,cvj7y/ev l*7f concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diacuxar 1xv7pm:smc2c5d g2/iqtw3o9c2c f/ - jmeters are each given the same chargeo 9i u2/cfa 1xmwscc5/pdq23 : -rcj 2gmvxct7, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a up 7 m)a9es1bg0k9e bhxniform electric field is directed stramhek bba99)g1p7exs0ight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibriuy2ot+nq63stdljw: ; l m near an electric charge

  A positive point chargev6 njld2cn j37 is enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly abovevj23j l6n7dnc the hollow sphere has

State three properties offa+ ks o-cy:a3 conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron is k(;32f p p-ny4wyhfup $e = -1.6 \times 10^{-19} \; C$. 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 t+7d+ccuq,s*(l-dpi+ y ji s hghan electrons does this piece of plastic have?,d(sq c j+gcd iy7+*us-ilp+h

  What is the charge on 1 kg of pr7 y+zhj a4f+rjotons?

  An atomic nucleus has a charge of 9w -zdt; h+5brup h(zr$+40e$. 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 psw l,vj0 hs.4e1lk5o and -4.0 mC, respectively. What is the magnitude of thkl4. se,vswo5 lj01phe electric force between them?

  A 1.0-C charge is 15 c5,/ hk)/e2h(t6lbuqq oiu ri m from a second charge, and the force between them is 1.0 N. What is the magnitude oft)ui5iol h bh2q,u r/(/eqkc 6 the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. r 2j4yo cgeha09x8+qwoyf4-rHow far apart are they?

  The force between a d8 p-38bzroe 3zdny .d$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 c4k0 o r6 lzn;u/wjr)ffm apart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric ulf 6ow)jfn;r k/ r40zforce between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The fizk /m - e0y4o3fwkvjk8rst 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- f ojk 0kyk4v8z/ew3m of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on thei b2+zn2rh5rm9: lbx e 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 magnit izne 52l2: rh9xbbrm+ude and direction 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 ati h6/x-vz3h ix 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 force on thh vi/i63x-xzhe 3.00-mC charge?

  A point charge of +Q i9 /nwm ez0 b;iwbat:10kbur8k s placed at the center of a square, and 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 charmker b0/ :natbwi; uwbk098z1ge 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);tdi von20 ji v+c. 3g2)u)r54f4dc;pzzlbcpp Q3 = 5.0 nC is at (0, 0). What is the magnitude of tvlgo2iv; t)5pcb4 dj4ir p02 dcpu) .3f +zcznhe net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 8 t6fjwtku,*n 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 chargu,t6w8 j k*nfte?

  Three identical charges of 3.0 mC are placed atx/rx4 qx,c;+t w6qxnf 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 6+/ qx4tfxqxw ,cxrn;charges?

  Consider point charges of +Q and +4Q, which are seph;w-mq3u atws,nw ) :parated by 3.0 m. At what point, on a line be s;mq t:uw)a -wpn3h,wtween the two charges, would it be possible 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+( f5.zpu:4acp0cs 6tadt8k p 8jzmux a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net0+ud( u:4ctc.k6asj pzz8 8a px5mpt f force on it is zero?

  Charge +2q is placed at the origin anryq .rfjqv (k.rrrk 177r4,nyd charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it ,rkr (k.q77rfvryr.q1rn4 jy is zero?

  A copper penny has a mass of 3.0 g. A )ppl ra .ccqj) a8*+mmtotal 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 eq37502cbg 188riqfhxld edffixed proton somexq2 7cef8gde1l0f3qidh8b r5 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 thkzuc kvm 8f yeuv7jq*7;.2w d6reads which are 30 cm long. Both are given identical chargjdkf. 2z76quv8c 7e vk*u;mywes, 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. Wex/s:i k:t(-t 0a*qu csn o -moneto ,z4d.xn,hat is the magnitude of the electric field at a distance of 1.0 m frxuea*,xooeo( tdmqtk:/n :.t0si 4 -sn,n c-zom the nucleus?

  What are the magnitude and direction of th*zyw hiqb) o64e electric field at a distance of 1.50 m from a 50.0-nw6 *qih )ozyb4C charge?

  A 5.0-C charge is 10 m from a small test charge. Whayk;w0 7ez* gnkt is the magnitude of the electric field at twgeyk 7* 0k;nzhe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge.2zz0 2 zt1wnjg What is the direction of the electric fi ntzw1zz 022jgeld?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of v x-d2ary:)jor7q ke9the force experienced by a 1.0 nC charge placed at the location of the:2y)aro j 7e -kqvxr9d test charge?

  Two point charges each have a value of 3.0 C and are separated by a dist,02 xdmux2p7dy.(conce/g j dance of 4.0 m. What is the electric field at a point midway between the twoc uddj,m/yox nd 7(x20p2gec. charges?

  A 5.0-mC charge is placed at the fyiaey4zks5rwp4: / )0 cm mark of a meter stick and a -4.0 mC charge is placed atif/k4e:4z)ryp saw y5 the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the am +rgg 2,zev*b, 2mlz0 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 ch *mgezb,2ma+ z, vl2grarges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = dp53f j9j km( 4ago+e2hm2jnm0.20 m. What is the magnitude of theh m+2dfj4 ojgpn2e m5a3k9m(j electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners otiwar;q . c21pf a square of side 0.50 m. The last corner is occupied by rc. 2;1iapqt wa -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1n6l 7hbw)a4fxo (mu7c .0 m on a side. Charges are placed 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 the elec4xu a7lho6w( fnbm)c7tric 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 om. *so 1y3jttuniform electric field. What is the magnitude of thist.jtsy o13 mo* electric field?

  A particle with a charge of 4.0 mC has a mass (ocb7/n/s8yu6g 7e blll2ri oof $5.0 \times 10^{-3} \; kg$. 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 elect4gg9-: yjr awswr1p, tric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to b,j grt:9syr 4-p1gww ae suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. Thx((kj:,b+pws;e1ri x75tpxq pe uc8ve ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electris pxv;:t kjcbw p(5, 1e+re(xuqix 78pc field?

  A metal sphere of radius 10 cm carri mc7kq;yv(ui, es a charge of +2.0 mC. What is the magnitude of the electric fieldv;k7ycqm ui(, 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mjze. f) dqb.0aC. What is the electric field 6.0 cm from the center of the spheredf.0bzq aj). e?