State the law of conservat-wgj9a 3t-hju3 t8 hnoion of electric charge.

  Is it possible for two negative charges to .*i:vkr:d ou0qbk v+r attract each other?

  Is it possible for a positive and uy,/dgm v:3qa a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. Durin4bdh8jgo hf *t;1ly4dg the process the glass rod acquires a pofho4*d ;8jyb d4lgt1h sitive charge and the silk

  A proton carries a

  The model of the ato1 e4vy2g koy:qm shows a

  A neutral atom always b8pot5v f -5/va4ex arhas

  An atom has more electra r ja0o+1(nflduki 1isrq w6(8 (;srvons than protons. The atom is

  Materials in which the electrons are bound veup:;ef m4(q bsry tightly to the nuclei are referred uemb4q sf p;:(to as

  Materials in which the electrons are bound very loosely to the n b :h5dnp1i,eiuclei and can move about freely within the material are referrpihi d51be,:n ed to as

  A negatively charged rod is brought near one end of an uncharged b/7(kw(gmj9 l;ew wt gb2u.p kmetal bar. The end of the metal bar far(w gkk(w jtm.u9 bpw;blg 7e/2thest from the charged rod will be charged

  Sphere A carries a net powi:wj7ulo*3*gs cs h90nn f2a sitive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touchedn0g: wasc97 *lw2nsihu3 fj*o with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positively?d1 e;i(qfvi sb;q6i y5

  An originally neutral electroscope is briefly toucs:pwhqo-h r/ jntx .w 1.8dql6hed with a positively charged glass rod. Thew186pr htld x.w: -sojnq q/.h electroscope

  An originally neutral electroscope is grounded briefly while a pohc,ub 8 k6ljh3sitively charged glass3cl kbh8uj ,6h rod is held near it. After the glass rod is removed, the electroscope

  A positive object touches a neutr8s gt2y qk*wyz xkva9k-g( 40val electroscope, and the leaves separate. Then a negative object is brought near the elezkv0yvk- 8gq*9ktyxgsw a(42 ctroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is l/l /1ch po/ /zd ohdco14ruy(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 fodo/pld/oh/ ( zc4y1 o1ruh/clrward, 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 C nd2*k zn,afp3bg( q;coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d.+6v;djkzbk40yn57g-a c zp gm The first charge is larger in magnitude than the second cgk+;gnzkz 6j 40p 7vyacb-5mdharge.

  Sphere A carries a net charge and sphere B ih ygow+0xwi. * 2xjum8 f,cgovyehu;w8ip2+7 s neutral. They are placed near each other on an insulated table. Which statement best describes the epw+ 2.iw2*7yihuu8c,oewjf0 oy xvh x;8m+gg lectrostatic force between them?

  Two charged objects attract each o,nntymg- o5z6wnwj: - ther with a certain force. If the charges on both objects are doubled with -y5gjn6no z:wm -n wt,no change in separation, the force between them

  Two charges are separated by a distance dp4ru(hj sb4u-vkbg (5 and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutualb 4 5jbuk 4ph(-gvsur( forces?

  Two charged objects attract each other with a force F. What happens 6(ix+ .ms76ji rqlv/ lqxdrcxx1 7t)wto the force between them if one charge is doubled, the other charge is tr7+ rq7tmlx ids 6qi) vj/w6lc 1(xx.xripled, 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 by a distance of 1g3 d;.dyt*4m s morn5(wrjvh+.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first e*hwd4.d;or yvs3nm g5jmt + r(lectron?

  An electron and a proton are separated by a distance of 1.0 m. What happens, khupdy j0uq:-+6jy ,nsr tl. to the magnitude of the force on the first electron if a second .hu6 jjd,q lp+r ,k-y snuy:t0electron is placed next to the proton?

  An electron and a proton are separated b22zm jkd9qrn) 1-stp,xpoic7 y a distance of 1.0 m. What happens to the size of the force on the tk 2mp)nj d9,so21x-zqrcpi7 proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of lvpqx4si no;o(9 v74 da 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'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 posiq lo;xp 9n(4sivv4d7o tive charge at the center of the square?

  A point charge of +Q is placed acvnho3z/ m)*qh 4.0u.k k,vhgpgy(rft 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 th(fhug3ovrhy 4.g*hz0.vn,q )pkmk/c e center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is ut hpa17t skux3q*w 88not a vector?

  At twice the distance from a point charge, the strengtjn-d xx vm7 , y*j;yovy9vle/-h of the electric field

  Is it possible to have a zero electric field value between a negative aa rnyee415cbm / (z,vqnd positive charge along the line joining the e1a4, bmr/ e vyn5(czqtwo charges?

  Is it possible to have a zero ebb1r m)g o4x(z1o,.5 f oqpqsxlectric field value between two positive charges alon1zqrx oo ) msfx.qb4o5(b,pg1g the line joining the two charges?

  Electric field lines near psh7w rb qxy*)wiv7-ih:itive point charges

  The electric field sho(-9oy mtnik -pwn

  Can electric field lines intersect in free space;yn: jcvrhl 33?

  A solid block of metal in electrostatic2gf()mr: uxwx equilibrium is placed in a uniform electric field. Give a statement concerning the electric field in the block:g)xr ux 2wf(m's interior.

  If a solid metal sphere and a hollow metal sphere of equazyj,g7mz d wn;pn84 w:l diameters are each given the same charge, the electric field (E) midway between the center and the surface z n7j8:yw 4mgp;,dnzwis

  A cubic block of aluminum rests on a wooden table in a regioov ,a*2ki j2c)fknl +en where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surfa 2ol+ek) *finj, ac2vkce?

  If a conductor is in electrostatic equilibrium neag-ubx:fx u58:55s(rj w.tgwk uz4gsq r an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is groundee/:y z6k(6dh5vvh bv; fbhv dk2eqwk*:auq1;d. As compared to the case without the hollow sphere, the electric field at a poi ::1k*qfvz6(2h;uve v6kd5d v hbq;hk/ba eywnt directly above the hollow sphere has

State three properties of conductors in static equil26xzof g5)don(tk/ efibrium.

State Gauss's law.

  The charge carried bfr,(3k sfo ut+fzmk5- y 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 charge of +2.00 mC. How many more pruc/6fjouc3 +oq,g1yu otons than electrons does this piece of plastu/ucof gjuqy +3o1 6c,ic have?

  What is the charge on 1 kg oy5zwbzm+-1 g u5g-zveh6l- 0 tf(jyvlf protons?

  An atomic nucleus has a chax80n4ep sosu uko /k j9)tct-7toc3:yrge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated bza4+ x z 9w8lf8*brlwl0 ga, qr-m-nczy 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What ar8w+nl cm- - z9wqzzlr 8lg0x,a4 *fbis the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second c;av(lhkg w9w:harge, and the force between them is 1.0 N. What is the magnitude of the second charg;w :9lkgvwh( ae?

  Two 1.0-C charges have a force betwegx-2y/in q ;nx4pm6qemf5 s:h en them of 1.0 N. How far apart are they?

  The force between a f.aev op2*g o 1 j0umk.nia)j*8lyd8f $30 \; mC$ 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 hd xiwj xj,7/p; xot;+1.0-N force. If they are moved to a new separation of 8.0 cm,djjx+pxi/ ;w ;,7ohxt what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first ,;rgaf*tj n) 9l8gqmscharge 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 )* fnt l,qrg s89gj;madirection of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-a; a.breh gugz8;x54 avxis. 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. Wha;.; vh8 uex zg5agrab4t are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at th 0n64t 2sq:tuvwfz m.be following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -s0utt b: .mzvwq26f4n1.00 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 second point 9o hr2 ng*cot0 xule5ka)(iy;charge of -Q is placed at the upper-left corner. It is hki) 9lt5o (u c2xe;0ra g*yonobserved 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, 0.10 m); Q3 = 5.0 nCp637mgm2tyo;r-gv gx 0c*g4mqlral ns** r3h is at (0, 0). What is the magnitude of the netctm6lmhgm 7xr 2rq sgn;*-r p*3v*o3gglya 04 force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is axlw fi0 oa1nwyv :2qz6:b)uc+t (0, 0.10 m); Q3 = 5.0 nC is at 0c u)fo:6yznw 1+qx 2alw i:vb(0, 0). What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilaj dgqk 7*wm64lteral triangle which measures 30 cm on a side. What is the magnitude 7 ql6dwmkg4j*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 wha.nf ro 9m3tot)eok*tr1xu v7u4 (cxg 8t point, 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 wooxo7cn) u9 r3*v mxrkgu(to e8ft.1t4uld be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Where o;2q (5t9*9 buu-.ihqpsb b nkop0t mabn the x-axis can a third charge be placed so thb;p iqmqpa9uts-*uhbkn. 0 29t5 (obbe net force on it is zero?

  Charge +2q is placed at the origin and charbj/xq6h9+ ,ky9gptbo ge -q is placed at x = 2a. Where can a third positive charge +q be placed s9pkg,6q j hxyt9/bob +o that the force on it is zero?

  A copper penny has a mass o)m 7no.j+mro 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 ag.g 4/bt kpi0ag*uofl+ ainst the force of gravity by the attraction of a fixed proton some distance abovu 0f. /a kbt+ig*pg4ole it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a commxj9kgoroqwr2/y--0z on point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart untyxj 9k/o0-o2qg zr r-wil the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of7p6x,zw .p qzg q-fx1f +40e. What is the magnitude of the electric fie 61zqwzp.,fpxx-7gq f ld at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of thepmr;l inq-qh:h8k+ab 2 t/1bb electric field at a distance of 1.50 m from a 50.0-nC charge? br-+b:m8/ a q qlknph;bh12it

  A 5.0-C charge is 10 m from a smallbbm 8cb wh0s5ydv,1 4q test charge. What is the magnitude of the electric field at t15s4vmq 8cd,b0ywh bbhe location of the test charge?

  A 5.0-C charge is 10 m from a s +ohg2+nn,ub nmall test charge. What is the direction of the electric field+bngn,n2 o +uh?

  A 5.0-C charge is 10 mt5*,j7lj :q4xajxf-96einzzx qiz(a from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placeii 97jaqlz(a6n, f- t5*xj:q jxe x4zzd at the location of the test charge?

  Two point charges each have a value of 3.0 C and aryln38 :x,qgd sto x1(se separated by a distance of 4.0 m. What is the electric field at a point midw: q1stly3x,sd (8ngxoay between the two charges?

  A 5.0-mC charge is placed at the 0 cm maqmyu6p- w1 6eerk of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field at the 30 cm mark?6qey-6 eup1w m

  A 5.0-mC charge is placed at thnt: q,vz)0k2e0xdmy z-/4c ss-jidb+dos g 2ae 0 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 charges is the electric field sssqz e,zk-vj:cby0 +2 n)g 0i/o dxd a4-dtm2zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0. mwyyp*ni+ c3x s-ce0+20 m. Wha*pwm+iyc3s -xeny 0c+ t is the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cj 3a68i, acg k/pv zh85jwo.omorners of a square of side 0.50 m. The last corner is occupied by a -3.0aa imkwvo.56 zh 8/j,8o3pcjg mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a side. Charges are placed a p.v+e0gz bs5/x/j 0tseozl+x t the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC ateb .o p+ 0szxlztes5/+gx0vj/ (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 elect v *y ./b;s6wjfks2sooric field. What is the magnitude of this electri;/ofssvwsy* bk6. 2 ojc field?

  A particle with a charge of 4.0 mC has a4k/:nrdfal-ei txn// 3i dr 2xti4h)e 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 p+c f(+5oll,ndiqg d8hwplnon/s; g: 6laced in an electric field of 6000 N/C pointing downward. What charge mustc q:p /hfdod, ; +on+iggn8(ws6l 5nll be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g cv+pjx ;.be v*u9ra+/: shmol varries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against theb;j e* .+/9su: xhoavlmrvv+p force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge uyx (d63jx:x2 7xxdhuof +2.0 mC. What is the magnitude of the electric field 5.0 cm frou6(3y7hjdd xx xu2:x xm the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What iss p+8eo;9(ou0 nlnsly ax7ca: the electric fiell;(oe oa p x0s+nn9ca:7 yls8ud 6.0 cm from the center of the sphere?