State the law of conservatimbb7dz5da,nok3: k x9w 4bj +eon of electric charge.

  Is it possible for two y7fu; 9+hcoeiotm y+;)cpzb )(e- zatae b0i( negative charges to attract each other?

  Is it possible for a positive and a negative charge to pb 4)2fma-m4n 4ms cn/rf ,xqgattract each other?

  A glass rod is rubbed with a piece of silk. Du 0/f,p3frql9 tzd-dhhring the process the glass rod acqudhf9pdtrfz/ l3,h0-q ires a positive charge and the silk

  A proton carries a

  The model of the atom*6.y/dtwwa ns shows a

  A neutral atom always i;y89zuxv cj/(2y; jj(cqkruhas

  An atom has more electrons than protonskt a h;fmlkmn bn.8y 9u-0-n+b. The atom is

  Materials in which the electrons are bo/3d3w +djp+kd ccc z2vund very tightly to the nuclei are referred to k zccjd+d+c/w33p v2d as

  Materials in which the electrons are bound very loosely to the nu(px i*2n.mq mdy209iw,e+ dhh3w lo;,qxvlorclei and can move about freely within the material are referqhwml dih dx 3p;o20(qnelvy m+r 9* ,x,iw.2ored to as

  A negatively charged rod is brougi ssxk9-9isjgs oz6 7:cxeg* :ht near one end of an uncharged metal bar. The e j 697xsosie-9*s:g:k zcgi xsnd of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge teky(5 sih2/-z qei1awaowx35dzt (+ , and sphere B is neutral. They are placed near each otheik-+z5 3a5td(o iqxeht (y/2s wa1w zer on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positiv:v(w lyqyn6 (xely?

  An originally neutral electroscope is briefly touched with a positivel.x4/ r.hk)myvn q sn*fy charged glass rod. The electroscope.4 x *ms/ vyqfnn)rhk.

  An originally neutral electroscope is grounded briefly while a positively ccxpg+ q a1tb6)harged glass rod is held near it. After the glass +bq1gatc6px) rod is removed, the electroscope

  A positive object touches a nevx8(fd2vhy9mj rc8 7lutral electroscope, and the leaves separate. Then a negative object is brought near the efc 28dvvl(jmy r98h x7lectroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. A neuv6 bwaek l513ntral 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, a 61bnwl3 vek5and 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 constag qs l8d5iy8xj ,8imi;nt $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. wg2irgxs 3//pfi m;j2n4pi+k The first charge is larger i/;s2kmi3wprii +nj gxg / fp42n magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. T ;z 8gol)5symxhey are placed near each other on an insulated table. Which statement best describes the electrostatic force between them;lyo85 xzm)gs?

  Two charged objects attract each other with a certain force. If the c(l4,ibicwb9ynp rx)4 b;j, yb pppe)4 harges on both objects arep(ib eb n4j);94x,rwiyl,) 4cppbb yp doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attracti6-o o 5hw-fvo.jrjb x-ve forces of F on each other. If tjrvxo--6ofw- hj5 bo.he charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What happens terl55bi mz uix5hff2: 6g .oa7o the force between them if one charge is doubled, the other charge is tripled, and the separ gz mf: 5ixhu65l.efib7ar 52oation 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. What happe vt5su ,zo)dm(ns to the magnitu (s v5otd,)umzde of the 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 happe98 pzp, cu3gx: ocrd6xns to the magnitude of the force on the first electron if a second el9 uz3p6d,pocg 8xrx:cectron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 m. brhema 8 kn;9 9a6pa0uWhat happens to the size of the force on the proton iu98pe;9akbn a6r0a mhf the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. Why7 q;1j9y omhhen a second point charge of -Q is placed at one of the square's corners, it is observed that an electrosth79ohq1 y myj;atic 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,o fq9fr l;:2ba4gf gs 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. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placeda 4b9 s;o2f:fgr,lfgq at one of the other vertices?

  Which of the following is not a vector?/;2 edh3 zfagxb;b7mr nhx5*r

  At twice the distance from a point charge, the strengapy 2 lgrr*7,hth of the electric field

  Is it possible to have a zero electric field value between a nega pfjjyc;3w0;7 upf;* 8 hfyobjtive and positive charge along the line joining the two c8f3pboycw7h;fy; jj0jufp * ;harges?

  Is it possible to have a zero electric field value between two positive5 ae:)un,(zu:585yzqhwpcjs esu )ov charges along the line joining the two charges?a snuu:p uyj:)o e55,(z5hqwz8csv )e

  Electric field lines near psc;x+031n gg ehoav8. y1vf uvtitive point charges

  The electric field shohfjlock6,7 f6 y /a nad5.v8ke sl)g2fwn

  Can electric field lines intefnvkc2e fsko+7y8rm9j :t d6)rsect in free space?

  A solid block of metadw an l/q8q:e+0rfq*vf 5p 0pxl in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the elpqqdvx0f08w/* 5:anqpl fr+ eectric field in the block's interior.

  If a solid metal sphere and a hollow metalqycn,;fm+k 2c+mpef4w ycy . * sphere of equal diameters are each given the samcce y,k+fwm2 +p qf*;nc4yy.me charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum ttd/gv p.4vw1rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said congp1.vwt / v4dtcerning the charge on the block's top surface?

  If a conductor is in electrostativk9w,dzg s-gm f-zl 41(yf7b41r eef vc equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is grounyx(8lt9d,8q yag3 og d5 k8uxsded. As compared to theu,3yx s(y 8aoxlggd9q 8k8t5 d case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors ist m*1brojcs gx d6/ ku4oo1:6n static equilibrium.

State Gauss's law.

  The charge carried byh*4 hv w 8xpx-wcfu/sy6oaz9: one 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 lc xbb.15 qas,charge of +2.00 mC. How many more protons than elec5qbcs l., xb1atrons does this piece of plastic have?

  What is the charge on 1g2in yalu* v:,jvu;6xybx 6.j kg of protons?

  An atomic nucleus har91xz id0: dy/rtz0hvs a charge 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 ofh8w .qcxh-b:1ul l7 xh 2.0 and -4.0 mC, respectively. What is the maghxw-x :l7.bu c1ql8hhnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between+2 - vggjn5rtf them is 1.0 N. What v5gr- f2tjgn+is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are thckdam 7i ypr;2.xi mv.1h 7pt*ey?

  The force between a k rh s/bf64f)b$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cmew ibq3g6b, o1el se 3t5kw,:zuwh6e 6 apart, experience a 1.0-N force. If they are moved towqwg :i35k,uz6lwb e61ho,e s 3bte6e a new separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The fic p .)b:nx6njxrst 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 electrostatic force which acts on the charge at the originnx6x.:nbpc)j ?

  Three point charges are placed on the gp7wto7hq n- g tycum 104 g-7rwm5x+hx-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 th0yhw1t-p +gngm g45om 7wq7tu7rxc h-e electrostatic force which acts on the charge at the origin?

  Three point charges are lodg3,8z .s, xs;la itjocated at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 , i;3.jsgxladzt,os 8mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is2tp6dzcyb :mx)pk+5 h placed at the center of a square, and a second point charge of -Q is placed at the )zb+h2pp :c tx 5dk6ymupper-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 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, 0.10r oh9q )5prd1,;wm e y)p,rqql 5;ear2 btuph5 m); Q3 = 5.0 nC is at (0, 0). r )qehqpor;m) ,blt59 p5;wyq5er2 aur ,p1 dhWhat is 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 (0mc h5*k.z 0s/m 0lmtra, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is*0zkhm l0 c.5a/s mtrm the direction of the net force on the 5.0 nC charge?

  Three identical charges ofrwcin-4ac)i2: c+w sm 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. )nmric: ccsa2i4+ww -What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated id :)z4 jzmhm:by 3.0 m. At what point, on a line between the4 hi d:z)mmjz: 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 a +9.0-C ct5. s k4vty.igharge is at x = 4.0 m. Where on the x-axi t4 5iks..tygvs can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at thhxtic9x hd2u8zqj:+69 qlolon;)) pu e origin and charge -q is placed at x = 2a. Where can a thirxut 69+)cinpdjo8xl 92;qh:qu oh l )zd positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 07yzv /sy lrv(odo7)kx(kebxk3 s5;p3.0 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 agaj 4, lo4yvm:ydgg8hr 1inst the force of gravity by the attraction of a fixed proton some distance adogyygj 4 :mv1r ,4lh8bove it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by bnm4) s.s.i djm3b0s xm,g a8x. w xjt;z,gy0mnonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion f.4gb.ym3. nt)xx ;8sm,sdwz0,mmgjxs b aj i0orces 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 hhf78)phcv 8q )faxq,+40e. What is the magnitude of the electric field at a distance of 1.0 m from the nucfhfqpha87)cqv 8 , x)hleus?

  What are the magnitude and direction of )/bwd g yv2,;omln p0jthe electric field at a distance of 1.50 m f/p;2jwyg)vm, 0lb ondrom a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charz ++llz 5m1spzge. What is the magnitude of the electric field at lmz1 lz+sp+z5the location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is thejjvo 0 umjpjov/bn4hz3cqk;n1 56bc9g 95t -e direction of the electric fp5bo9qj9gv/ok4;5 u1 j hj 03b6-zjmc tnvecn ield?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitude of fmsgw 1gkippeo- 8h 8w8a .-dim(r*n3 the force exper wkn w81if* (. mehgmip-8g -rs8opd3aienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of qz xosx, 5)5:ml4ds vb ;)zpur3.0 C and are separated by a distance of 4.0 m. What is the electric field at az oq)s 4v,xpub 5:;) z5rlsxdm point midway between the two charges?

  A 5.0-mC charge is pla1/a;5mjb:9ifhj*4 mtg1htz r9 mtup yced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What imbat/ grh9ij15mpt4:zy;hj9*tm uf1s the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at thz37gu f y9oe;we 0 cm mark of a meter stick and a -4.0 mC charge is placed at the y g e9w3fz;u7o50 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:ex,od9hkma t f0d y,t1dqz (+ mC are placed at x = 0 and x = 0.20 m. What is the magnitudtfok d0m 9e,:hdyd(1q,+x azte of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m. Thbcff(t: *iqz sftcu ,.+u .oo+e lastb..fs:i +quf o zouf*+(, ctct corner is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square wh jpom0cmr6)*oii*g6fk. ec8 aich is 1.0 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 elect)e ii6o. r8 mk6pa*jgo0cmc*f ric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when itlu9x*g9m hn55fdjj 1n is placed in a uniform electric fhx59ulg*1dmnnf 5j9j ield. What is the magnitude of this electric field?

  A particle with a charge of 4.0 mC ,5mw-v4wa sp*nvzw 9khas 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 field of 6000 N/C posrl+0 ,/ amxzxk yg(5zb 1dbji:bw)4lq;au 1iinting downwaqgzz1byad wb (ul sa4:i/ilj x b1xm5+;r k)0,rd. 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. 8dhx6rwp-k 1qThe ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the mhwr -8d16xkpq agnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What tg 0r2i vwv4g)is the magnitude of the electric field 5.0 cwi4g0t v g2r)vm from the sphere's surface?

  A metal sphere of radius 2.0 cm coam:ohd i y /lm*-6;evarries a charge of 3.0 mC. What is the electric field 6.0 cm from the center o io h -;o/yl6:dmvae*mf the sphere?