State the law of conservation of electri 2a1v:z 0s)xwfxvr 1asc charge.

  Is it possible for two negative charges otz-1afa ) h* u7x/nkvto attract each other?

  Is it possible for a positd r5m,4knxu: k9ckd6d cza/k(rd)vaf) rb8e9 ive and a negative charge to attract each other?

  A glass rod is rubbed with a py (. b-q-jd rgm ewtnan7c(g97iece of silk. During the process the glass rod acquires a positive-m7w7.te aby(nn -qdc(gj9gr charge and the silk

  A proton carries a

  The model of the atom showh8*)+7 wmj yeya( vg*maak8jgs a

  A neutral atom always huzjp +s/lkmfnwnej4lg09;+m3e::n c as

  An atom has more electrons than proto *xz:)ruwek5wns. The atom is

  Materials in which the electrons are bound very tightly to the 1hi84xi a.hw hg) - 6siebugp8nuclei are referred to as-xwh iiugigs.)86 41hpa 8ehb

  Materials in which the electrons are bound very loosely to the n of9uh*td 2)ey3 0zigjuclei and can move about freot )yuz*di20jh 39efg ely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged met y,u6fp*.rmsqal bar. The end of the metal bar farrq6syf*m u. p,thest from the charged rod will be charged

  Sphere A carries a net positive charge, : -*ojwfge:nu d 8i6nzand sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefjn8dioef-n*g :wz : 6uly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charger6wt1nkqn* .w an electroscope positively?

  An originally neutral electroscope is br, cpxygba+rj:ko m501iefly touched with a positively charged glass rod. The electroscopegxr0 +c,:jo a1 mbyk5p

  An originally neutral electroscope is grounded briefly 78oe6gms5d 2szgk) rbg); x4a kd)utxukm+k.while a positively charged glass rod is held near it. .s) 2x 4gk8kr)adze)mkmu56 t7gg +ds;x buok After the glass rod is removed, the electroscope

  A positive object touches a neutral*owrmnd(0ia(690twxc 1p4 (g vs qmyn electroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What h6 y(c*qr0dwvm nw( pgxna (4it9s m1o0appens to the leaves?

  A large negatively chargec; p*nuvvj of1j ma3/ b ksgih0i88d-/d object 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 cjo/nmk f0vvdp /u bhs-8 a*3igj;i 18followed 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 each ball?

  Charge is

  What are the units of the Coulomb const kr:xq -y52pzpant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge is 6 g;sx7.qfyq ylarger i .qygxq6;y 7fsn magnitude than the second charge.

  Sphere A carries a net charge and sphere B is neutral. They are placedf( pudsb,d re(w6;ek) near each other on an insulated table. Which statement (s ,(eb wrdpkd6f;eu) best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. oezqn3 f wr)w (v36zs;ehtt; 9If the charges on both objects are doubled with no change in separatiof(w69ezs)weqh 3zor; ; tt3nvn, the force between them

  Two charges are separated by a distance d and exert mutaxi2*q thtj0+ ual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are the new mutuaxt+ hat i0q*2jl forces?

  Two charged objects attract each other with bkws+/(ipgq3.3 o/i s;uhq u1c(gt pca force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers/.tqqc1ukgi sh;/ ((o3 cg us3+pbiwp is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a d.z1t+jxhc -ll istance of 1.0 m. What happens to the magnitude -hcl .+ ljzxt1of 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 hwcvjpox99h9cl35ld 2 appens to the magnitude of the force on the first elw293x5djlchpv cl9o9 ectron if a second electron is placed next to the proton?

  An electron and a proton are st . meuk+)-himeparated by a distance of 1.0 m. What happens to the size of the mh) ueik.-tm+ force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a u. m, 3gyt:g b(4etnzzvci8-ps .u;nlsecond 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 positive charge at the center of the ;p,b :el3t- c(m4ytvns niuz gzu .8g.square?

  A point charge of +Q is placed at the centroid of an equilateral tria qd9;fjjyhel ,kt)pya *6r+0r ngle. 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 ,+ehtdlp; )j* kra 0rf9q yyj6is 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 is not a rz5xk s( pvwh0 88wzz5vector?

  At twice the distance from a point charge, the strength ofnt9jbxqnjg:7,)eh9 e eynazo39 .q y+ the electric field

  Is it possible to have a zero electric field vatkb 7 *1h5aqwjlue between a negative and positive charge along the line joining the 1 ba5whkt 7*qjtwo charges?

  Is it possible to have ahlk8a(8j r6v, w5mlnt zero electric field value between two positive charges along the line joinin8,j lkhvlt8 narm6w 5(g the two charges?

  Electric field lines near psitive p3d r,h w*dxm rz1-pjk/oint charges

  The electric field shown ff -20b sz(j0zd ij,aq

  Can electric field lines intersect i4h ccywmhx 96wa;q +r2n free space?

  A solid block of metal in electrostatic equilibrium is placed i j392v i u w4p mjz(ed7hv./kaifze*o7n a uniform electric field. Give a statement concernj*p vah ef79i z3zjomedkiv( w4/2u 7.ing the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sn5lw5c098ucs l/cls ephere of equal diameters are each given the same charge, the electric field (E) midwacw09u5ll ecc85lsn s/y between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region dqt8.v p 0g1slwhere a uniform electric f pv81g0qstd. lield is directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostat; ;n4um rrnd8pic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that is gr jw+cw8w q).eb0hq2,5uodjg v (s )jilounded. As compared to the case without thdsc,wh qwjwjj+ 0e8q i)b2lg u.5o)v(e hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in sta)v9(nrvgumg9 tic equilibrium.

State Gauss's law.

  The charge carried by one elect/9 u3k.txwgoph6ni e ai- 53diron 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 chargeeihp7,2mj +dv q2...ju- jacy up;pqo of +2.00 mC. How many more protons than electrons does th-. mu;dy.eq2+ oi.ajj 2jp ppv7qc, uhis piece of plastic have?

  What is the charge on 1 kg of prot* tlnh6um6y-q (a4ge pons?

  An atomic nucleus has a charge us/ rk-a5wq6m 3jwkj3 s.hc8gof $+40e$. 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 gf8fm 3d5n,m)owgh (hpi / 2izcharge values of 2.0 and -4.0 mC, resp5,o2hi h3gmdzmnpwg/ff 8()iectively. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and t,i)mh e:*umhh he force between them is 1.0 N. What is the magnitude of the semhiumh:*h ,e) cond charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far ap/+3vjmqq )7 w-alnl*mwnwm s 7art are they?

  The force between a 1keq)qq/u0w8 q3f pjc$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experien(1g l,xaaacf:)mpqtz f c 6v63ce a 1.0-N force. If they are moved to a new f36c )p:act6 xa1(qgvma,zf lseparation 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. T) r lzj,2wke(ghe 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 direction of the electrostatic force which acts on the charge )2ez (r wk,lgjat the origin?

  Three point charges are placed on the x-axis. A charge h5fi(2 ns*w -po2 akz *agxi9be x*vu/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 the electrostatic force which x i(/azs k9-*pgaefu*wh5 2n vbo2ix* acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC at6*nw. i6rqe oa x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = r6o. qweani6*-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, ad . l/juz-sv q1cp;v3bnd 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 3pqc- vd/vju.l1;s bzthe 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 nC is at *,jdi2f) 1+oyjv cxh0w whkc4 (0, 0). What is to k4hjcwcx1vh02df ,iw*) +jyhe magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 mzab8oiy:d ( plifh9k ha p d6 b),40voz;l/q8m, 0); Q2 = -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 odfo6 y/:h(o 4k 8d9qzvhppmal)i alb80,;zbin the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of zb0*yqw kz/,ml z* w9oan equilateral trianglem/o wql zz9wk*z0,*yb which measures 30 cm on a side. 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 by 3.0 m. At wv, mrh/vr :9 0t)jaknehe8e 7ohat point, on a line between the two charges, would it be possible to place a c j)t/eo v9h7n8e rr:mv,h0aekharge 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 = 4.0jp*xd7sy r h;: m. Where on the x-axis can a third charge be placed so the net d sy:; 7j*phrxforce on it is zero?

  Charge +2q is placed z 1 41q td)kznjp66ubzat the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so t1d6 j1nzq)6tuzpk zb4 hat the force on it is zero?

  A copper penny has a mass of 3.0 g. A totazqw :.)yy(px(p c di7rl 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;8*dsqg yfvtsi/t4 j 9 against the force of gravity by the attraction of a fixed proton some distance above it. How far abtvsg4*f;t j d9/si8qyove the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting tpwdn *x1fk.2fhreads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the th1dfx n *k2wfp.reads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge zetf(dy34 y q,)d. ozat4ru:vof +40e. What is the magnitude of the electric field at .rzf dquo: ) yzy 4avt3,4de(ta distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a da s2v0ot 2qt pt 4tqxfaz-()h4istance of 1.50 m from a 50.0-nC q0o24x)t(t h faavq 2sp4-zttcharge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudi f07u. onn5,ve53urinu.zm de of the electric field at the location of the muide7 5uuv 3 o0fin5nrz.n,. test charge?

  A 5.0-C charge is 10 m from a sj6 + rudpqsdn+yi95 *wmall test charge. What is the direction of the electric fieldd q5+6isrn+j 9yp u*dw?

  A 5.0-C charge is 10 m from a small test ch;9argysc t5w.eift ls;2- q mk(cxb8 9arge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the te-5xgqck ;isa9lm b.s;cr 9ty2 (we8ftst charge?

  Two point charges each have a value of 3.0 C and are separated by aq+l:wo rcnxhe f(5zt1.l ,g 5f distance of 4.0 m. What is the electric field at a point midway between thewfx1.l5gn:cl efo5 zq +,hr t( two charges?

  A 5.0-mC charge is placed at the 0 cm ma5m/cj6btcs3;q4 khe ark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark.4t; m6e j/k5hb3 cqcsa 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 -42r-jtpygor o4er u* 06.0 mC charge is placed at the 50 cm mark. At what u0yg o24epr6o*r-jtr 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 placedyiswi2w )2;tu *2etli at x = 0 and x = 0.20 m. What is the magnit li s*w2);e2 y2iwutitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three cj6r)w u gwry;z1x.0rkorners of a square of side 0.50 m. The last corner is occupied by a -3.0 m;)0wrxryjzk. gwr16 u C 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 at7,dz)d2z a wug the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.2 g)dazwu ,z7d0 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 wbz1f12 ;pqm1ip8u7imrn v0 nchen it is placed in a uniform electric field. What is the magnitude zup7r vf;21i 1cnm8q1nib pm 0of this electric field?

  A particle with a charge of 4.: /m)i.rk f:md8l qe qpf-ut/u0 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 an electric field of 6000 N/2igkno7z )w ;tlbpp6 /C pointing downward. What charge /k p7gz;w) i2lt6 npobmust be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g ca b0j,ta2h6zc+5 gbex lrries a charge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric f c a6ebx+t2z0h ,jl5gbield?

  A metal sphere of radius 10 cm h 5psed;0xw 5bmx fl-)carries a charge of +2.0 mC. What is the magnitude o )dx h-sflxpbe0; 5mw5f the electric field 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 4czn 9)cr xb.lfmm5b 8b g:j6athe electric field 6.0 cm from the center 8mxa: 6cbl 5m4fr)jb9.bn cgz of the sphere?