State the law of conservation of electric dn 7z,2py mui rnlj055 b1j0hycharge.

  Is it possible for t7zjj9bigl5 ez .8i1y5 vos)*/izylj f wo negative charges to attract each other?

  Is it possible for a positive and a negative charge to attract each otherrg06rzq b) ki)?

  A glass rod is rubbed with a piece oiybo 9i li128qf silk. During the process the glass rod acquires a positive charge and th o8lb1y9iiqi2e silk

  A proton carries a

  The model of the ato5mchcnp8z8zit t,tw68 83 x m-5ehblrm shows a

  A neutral atom always ha)6vx)c+mg lk vo (kvtn5t5hphi s5y92s

  An atom has more electrons than,o jj+t bq/j kv4/7eli protons. The atom is

  Materials in which the electrons are bound very tightly to the nuclei are vt x:h0ao8b+i : qeh1kreferredakb0h+hv tx:i 81e qo: to as

  Materials in which the electroj zl:0bm8bp o t)8e/vlns are bound very loosely to the nuclei and can move about frej0 o/m )8lt ep:vbzbl8ely within the material are referred to as

  A negatively charged rod is brouf )1dtz gp hwm4m.9x/rght near one end of an uncharged metal bar. The end of the metal bar farthest from the charged rod will be chargep41rgxt df ). w/h9zmmd

  Sphere A carries a net positive charge, and sphe17yg7 rxwu5 h z5+btttre B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched wit1uyr7t x 5+z5gbwt 7hth a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope zq5t8 (ures7dpositively?

  An originally neutral electroscop cwze(k01h5,oq/mz7 wms dk z3e is briefly touched with a positively charged glass rod. Tsk70dz( ,oq 1wezmm zh3wk 5/che electroscope

  An originally neutral elepshk.rtg+1xm n9 o12apsz6ix+*;wpn 4g5ys ectroscope is grounded briefly while a positively charged glass rod is held near it. After the n +wp sieks4yzm+agxh1gt 6spn15p o.x2r* 9 ;glass rod is removed, the electroscope

  A positive object touches a neutralh0k/g1sdvte b - xdy2 .l39dfea)v p0z electroscope, and the leaves separate. Then a - y)t00pvv9kd ge 2a1szfl3.xhedbd/negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neutral mwi vdg.l+mc7s ) bw89ketallic 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 sdcm8 w7)wl v.bgi 9+kdoes 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 Coulombt s87iqs l ;c16fy6cfe constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is larger igsrt3ms 4y6 f9n magnitude than4sr mt9f36 syg the second charge.

  Sphere A carries a net charge and sphere B is ne3u1yjqdba 3- outral. They are placed near each oty-3o3ad1 qjubher on an insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certaq7jp75p+,yn ,fo jafr/:o ukyin force. If the charges on both objects are doubled with no change ij py5fnpajy,+ok q,r7fu7 o:/ n separation, the force between them

  Two charges are separated by a dijfsb30aln0dab5( l/3p e3d4sfjy .k estance d and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, 0laef40fddes33bn.kpa / s(jj5lb y 3what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens to thvtxn(r*jqcz/gf)-4u w,c. nzi6 nuo(e force between them if one charge is doubled, the other charge is tripled, and the separation v46n*f.rcux )jwnoz(t,i / ng( cqzu-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 ol/x 1e66 nheg2i9:mh w zndg/vf 1.0 m. What happens to the magnitude of the h/vl 6:nmi/6xz w9 en12egdgh force on the proton if a second electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happens told. ;adf,epg 7b ap1,ia0yrd / the magnitu df;,.b1/d y, l rade7g0iapapde of 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. f 7cvl57lxk/+;xqvdvywl c 5(What happens to the size of the force on the proton if the electron is d7 x/l 5cqvll5vcf;x 7wkv +(ymoved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center ow8 ql4edaps 58f 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 the positive charge at the square'4a e w5p8ql8dss 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 o mp(mffc0fw +1bqkn9 a -so15pf 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 p5( 1q m01s9-wacbnpf km+fofit. 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 followi7.iqhh2lpxa 0j5u g7mng is not a vector?

  At twice the distance from a point charge, the strength of zh -0uk 7)pbkq8mw0e othe electric field

  Is it possible to have a zero electric field valu6 z;vtlx.5stze between a negative and positivzszvlx6. tt;5 e charge along the line joining the two charges?

  Is it possible to have a zero electric fieldz7 p0j*gt tdw +*-;f -vphnnb7mnfg q8 value between two positive charges along the line joining the two tb-;8 0wnmfn*7vgqh -+tg 7njpzdfp*charges?

  Electric field lines near psitive point chargesx pfp + gaps(lb4t87)x

  The electric field shao 9d/+li (pfcown

  Can electric field lines intersect i sis*non, 3o vvoje92-,mf) zyn free space?

  A solid block of metal in electrostatic equilibrip dnl mo*11l+ 3kodm,wum is placed in a uniform electric field. Give a statement concerning the electric field in the block's 31nlo,o d+mmp*d1 wlkinterior.

  If a solid metal sphere and a hollow metal sphere of equal 6m:gu8s7vbjw4kt/ze kq 0g (n diameters are each give8: 6gb /qwjmktn0 vsgke7z (4un the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum yqj-b,0 ,cx ozrests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the cxq yozj 0-,,bcharge on the block's top surface?

  If a conductor is in ele(30vcpw npg,*onr10yoeumo2 ctrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that ios0p1(; vcquk s grounded. As compared to the case without the hollow sphere, the electric field at a(o u10c;ksqvp point directly above the hollow sphere has

State three properties of conductors in static o-,nai afw;4 cequilibrium.

State Gauss's law.

  The charge carried by one electron is.-lgf73izt:e (oxxi jw3 e( ac0ma/dp $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a ne6f*kqkw ( y5bv;js /pat charge of +2.00 mC. How many more protons than electrons does this piece of plastic have?yk;q / 5af(kvb6 jspw*

  What is the charge on 1 kg of protons?ahslrd (+ w5qx*hfg 2;

  An atomic nucleus has a cxhs(:6tc .a wdharge 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 va8gtgk a3vk9jxw7b, r2law5- dlues of 2.0 and -4.0 mC, respectk tjga, v 5db23wkag 8x-r7w9lively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second chargebwx(yt26oy-lrz 5 u,ghb;m5c , and the force between them is 1.0 N. What is the magnitude of the second char;5zb5,(w blh6 ytc- xurmyo2g ge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart 99/xej9/fo/afda ajn are they?

  The force between a 0 rrb6-7jm,h h4h r(3o xtmjkd$30 \; mC$ 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 11 x9k;j2hixjs lsg ;isr7:sx) .0-N force. If they are moved to a new separation of 8 :xxg12rkx;hj s)ijs;i ss97l.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on thet bwtq-gd(jy9:(is: j x-axis. The first charge is at the origin, the second to the b: sw-(t(gjij:dyq 9t 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 chum 3gulme8s87arge 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 t387emsumlug8 he electrostatic force which acts on the charge at the origin?

  Three point charges are loca -9s ct 4 (qmk1hn:fwy2kj2bejted at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at xwk-9y c1 q: 24jbnk tmj2fehs( = 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 +:* g oqu22wa7nzrkoz 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 charge at the center. What is the magnitude of the force that acts on the centero+k q2 *wg2uznz:ro7a 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 = 5.0stwu (d;ac6s6.r/m r 3ipw,g 2hr5ae +yz7tvh nC is at (0, 0). What is the mag25rd+7 h/pr.3wsistagmye (6 hc ,v6rutw ;zanitude 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 nCc7; uqdu3o5e l is at (0, 0). What is the direction of the net force on the 5.0 nC charge?; 5 duo37euqlc

  Three identical charges oft1) yv4b+po( 8ikxc rs 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What i1or +8)yipv(xsbk4 cts the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At-qv mvnwn .y:* what point, on a line between the two charges, would it be possible to placem qvv :-n*wn.y 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 x = 4.xcg ws.gu42n)0 m. Where on the x-axis can a third charge be placed so.s 4ugwxc)g2 n the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed atkom 1 v.y3:pvsz-pa.t x = 2a. Where can a thirp :saytvo3k.v1p m.z -d positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A total f:hx qsr.b0u.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 gravibzwm4 5knuo .w,iivls 5t/j5. ty by the attraction of a fixed proton some distance above it. How far above the electron is the pj5 u/mkwv s.itnw5.ib5, z4loroton?

  Two 0.20-g metal spheres are hung from a common point by noplf2 6 dcx;pq0nconducting threads which are 30 cm long dppc fl;xq062. Both are given identical 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 magurgqat3 k jg77r fu8u4q9na15 nitude of the electric field at a distance of 1.0 m from the nucle77 aqk q34tu9gu5r1g8 rjnuafus?

  What are the magnitude and direction of tht*il utmlzbn6;) tl1.e electric field at a distance of 1.50 m from a zmt n*tl;6 bit.ull)1 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnlwbf p0 /* vvz:xv7xm3itude of the electric field at the location of the test :/3vxvp*zl7w vm f0xb charge?

  A 5.0-C charge is 10 m from a small test chargevvh(o chd(j- dr)7ec+. What is the direction of the el7j(cd-v orce (vh)h+dectric field?

  A 5.0-C charge is 10 m from a smahifru6 p)7dx3 n;s 1co9z jc+yll test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test cuch z6ip)x y3csoj; +7dnf91 rharge?

  Two point charges each have a value of 3.0 C and are separated by a dign1iq0s h 8 hoyxz:68mstance of 4.0 m. What is the elecohgshx y0n18q:m6z8itric field at 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 h6s ow:3,z(qyrksp b .mC charge iohr: qbpz.s 6w(3y,sks placed at 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 chargd ga tfxn1-i8xr4:g u0e is placed at the 50 cm mark. At what po gagix u1 -:0nd4tfrx8int on a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mfl a4nx1+if )o: 6-qgk.ljareC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at 6 1+iknafq-aej):lfr. x4gl o the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. Th;6hu. pw b)xd6e,sfkke last corner is occupied by a -3.0 mC charge. Find the electric field ufe xkh,bw6)6sp; k.d at the center of the square.

  Consider a square which is 1.0 m on a side. Cq sgdgakya rc2 8 iyh;s3u ncr2-n7,7*harges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 n2c3hyd-, rgn28kiu7q c ss *yg7a;a rmC 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 mCm-lz oh k; *k,;mx27c(lfmj h*rb2 lcq when it is placed in a uniform electric field. What is the magnit l m-fkkl7rj2,b*cl*o m2c;;(hqhx zmude of this electric field?

  A particle with a cha+nz9p 6((+ ycmu2vix:a+ fy o bn:lvnp-t6rasrge 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 in a1xr 2 mju:,y/lye,gll1tj l9yn electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to blr :gjl1 j91 ty,lxly2/ u,yeme suspended?

  A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placa):m w/ j):+1vrvgg dwm5jtogm2v os)ed inside a uniform electric fiegg:r)jadg2mw/jovsm+ 1wovm5 ) t: )vld, 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 car7 v vckqz+l:t(ries a charge of +2.0 mC. What is the magnitude of the electric field 5v+ v7tk(lqz:c .0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge9.urrb4rx(,i.s js f m yg0tu0 of 3.0 mC. What is the electric field 49uti,sb 0r0 xu.sj r.m(rfgy6.0 cm from the center of the sphere?