State the law of conservation of electrin bl93oz +bqj m0,lon/c charge.

  Is it possible for two negative charges to attract ea5yylhq. 4k a/ach other?

  Is it possible for a positive 64+znfpew3m s and a negative charge to attract each other?

  A glass rod is rubbed with adu/+7e wzlrg kba,1+ aw8 qm,a piece of silk. During the process the glass rod acquires a positive charge and t+ a+7b1 g,l a mw,edzku8rwa/qhe silk

  A proton carries a

  The model of the atom shows )iuqo6b,fl966,rc ftskyb u/ a

  A neutral atom always haf-b7lm1z 9 bdb7;qw gas

  An atom has more electrons than protons. Theqn7 i-wn3 zb0cqcwvd;sz( 7x* atom is

  Materials in which the electrons are bound very tightly to theho(zhfn2zyarh9 .10 f nuclei are referred zhrza 9.(h1yo02hf fn to as

  Materials in which the electrons are bound very loosely to the nt,k ylno;ju 86uclei and can mov6 ky o,;8tnluje about freely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged metal bar. l(,xkkf+od5 zaj3 p0f The end of the metal bar farthest from the charged rod will be charge + ld,p0kk(jofx 3zaf5d

  Sphere A carries a net posi h +:hb7nxbdp/tive charge, and sphere B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded.xn:+ bhdb /7hp Which statement is correct?

  How can a negatively charged rod charge an electrors8jeo-jk 1h0 x 2)ko8nlj a39sk )nukscope positively?

  An originally neutral electroscope is briefly touched with a positively 4s q6 om fb5u5bh*ilt+charged glass55is4*tbf oqu6+hbm l rod. The electroscope

  An originally neutral electroscope is grounded 5p,ybpu+oxr *z4to3n briefly while a positively charged glass rod is held neany*4+u,z5tx oop brp 3r it. After the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the leavesz1e8 3nz*n dppe m;yf8f 4in6v separate. Then a negative object is brought near the ele; n64pvy en8fzf*m81 dizne3pctroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object 5emnv8ur/sq-g 9 dm1fis placed on an insulated table. A neutral metallic ball rolls st m9rn8q5- 1g/vsfdeumraight 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 each ball?

  Charge is

  What are the units of the Coulombi a z;o6ry 87)p7-w9 rhbs8elftcpsl: constant $k$, which appears in Coulomb's law?

  Two charged objects ar:cw o,r hawo l2,n/v+(wji-v se separated by a distance d. The first charge is larger in magnitude t ,,w orslv+aw-oh( vcwni j:2/han the second charge.

  Sphere A carries a net charge and sphere B is neutral. co p5pu.*s5k sThey are placed near each other on an insulated table. Which statement best describ5us.k*ocsp 5p es the electrostatic force between them?

  Two charged objects attract each othegbqf;lh/0 9ckr with a certain force. If the charges on both objects are doubled with no change in separation, the force between thq b /lhc9fgk;0em

  Two charges are separated by a distanahu2 0fa /4tjfce d and exert mutual attractive forces of F on each other. If thtu ff4a 0a/j2he charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a x)fk.g kbo21 eforce F. What happens to the force between thex1k g efbk.)2om if one charge 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 by a distanc lcuyx:(i)8e d.mdi8 qvr.wv0e of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next to the first ele qiymv 8lvd)w:8x0e.(. drc uictron?

  An electron and a proton are separated by a distance of 1.0 m. What hagtnm(f-sgmq, k+ 18h r56 sjqh( r2yieppens to the magnitude of the force on the first elecqmrgnq,hthem y+ r6i1 (5 ssg8k-f(j2tron if a second electron is placed next to the proton?

  An electron and a proton are separated by a euk1p;2teheh g9 70ri distance of 1.0 m. What happens to tehuegept197;r 2 ik0hhe size of the 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 cent.gn4u 9s e:itl+fdv:nu ,7ftl er of 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'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 poig n d,tlf:.7s4v9t +lef:n uusitive charge at the center of the square?

  A point charge of +Q is placed at the cpubgi 0qg8 vr86v8p v id0+.ydentroid of an equilateral triangle. When a seconddidv. v 8g08yg8rb0+upip v6q 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 placed at one of the other vertices?

  Which of the followingshs2tl)o p y7gjh8 - l1-hugh2 is not a vector?

  At twice the distance from a point charge, the/ em d,bu3cr3k strength of the electric field

  Is it possible to have a zero electric .,f0iw4gel:ielk rfefoh ) :/field value between a negative and positive charge)e:lfkle/of. ,i 4g 0i :rfwhe along the line joining the two charges?

  Is it possible to have a zero electric field valfukxig* qb-gz* l)s e(b)3rv)ue between two positive charges along the line joining the tr)u*-kxzq) *f v bg3gel)bs( iwo charges?

  Electric field lines near psitive point charges8b8j8hz9x gj 7ko ,ulx

  The electric field s++n k77i*) i ekyaibpwhown

  Can electric field lines i;bgod37o/9xn z 1gt cwntersect in free space?

  A solid block of metal in electrostatic nlv/4ew)xgk2 vl2q*zy rr4d5 equilibrium is placed in a uniform electric field. Give a statement / lkgzry)ev24*d5 nrq vw4x2l concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are ezckd p1; uuz.7u/wpqtuu ga-:8,)en lach given the same charge, the electric field (E) midway between the center and the surface n;z p 7 pzau uug8u1l:,/dq.wtue-k)cis

  A cubic block of alumin1.+gepjz x x c-makxb ft/.n4mg4k21uum rests on a wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the blockexb-.g.xc 4kxju/m4 anm g + t1pz2k1f's top surface?

  If a conductor is in electrostatic equilibril ;db0nbr/z71(emp j wum near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere that/ a*t- ;.p;dgf sahafg is grounded. As compared to the case without the hol;-fd ;p.t/ga *hfsagalow sphere, the electric field at a point directly above the hollow sphere has

State three properties of,b3kej jcc9w 4 y 6h mj:8k,jro*(ikem conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electrond2s1 y ,m3qaok 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 m 2m hgjacbe 2tq))-x3gavj+o6any more protons than electrons does this pi2g )+coav6jgbeqj)3hm at -2xece of plastic have?

  What is the charge on 1 kglaac (: ikl )8hdrwrthkj*2 (3 of protons?

  An atomic nucleus has a charge ofd+haes)/vk h ek 2,a-j $+40e$. 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 and -4.0 mC,tfjr92gu90 n)x aa(gr respectively. What is the magnitude of the electric force betweenr9f) t9gagxr n0a(2j u them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 8yxla;* 5v3z d*cumgo+ 4xd bnN. What 8yl bxgozmnvda*4dx3*5 u c+; is the magnitude of the second charge?

  Two 1.0-C charges have ag *nlo w4dgs j7/5dyr0y,qyb2d s r*k0 force between them of 1.0 N. How far apart are they?

  The force between a 6 v rtc, m8a yywf wfbj5)n-33i9y5sue$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience c;q4ln715sp8jrht w la 1.0-N force. If they are moved to a new separation o jr715cln4h ptsq8wl ;f 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are p) yf2*x d3 lytojvqz(-laced on the x-axis. The 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 f- dy* (tvxzoj l3y2q)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 charge of +2.0 mC-9ddemqr 78(yhfa*3qext eo0zr jt6 ( is placed at the origin, -2.0 m C to the right at x = 50 cm079(fh6ardoyj- xdqz8e r t*ete(3 mq, and +4.0 mC 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 arefekx eiw qchdgm7:dm l47 f961 .zv8w5 located at the following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m.9mx7w8 dhie7m:f6fd wq zgck .4el15v What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q iiikx40ro.5e +; /aj svjjxur)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 charge at the cexxj)rjvk ia oj0iur;s/e +.45nter. 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 , dr+e s.m3ljay/o:sbm8t*x l ee/wf .(0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of thwsb:. ,fje/8e.maorylxdsm /+3 lt* ee 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 nC i8( z9s0 uojriy+djxe+p.-gj1+ohc iv s at (0, 0). What is the direction of the net force on the 5.0 nC ch (ioj+y10rc .9+zh sj8jxvod+g eui- parge?

  Three identical charges of 3.0 mC ar.npa v1e clqt, eh2)q(/q9 vzve placed at the vertices of an equilateral triangle which measures 30 cm on a side. Whec(/hqv9,t.v pqn1 za2ql v)e at 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 p ynag ni6i96 5t1eu1(z/awmv by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q such that the electrostatic fp/ia65zy (i1wegu 6v9a1mnntorce acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x =.;p n-b1:wfao hwi nx+ 4.0 m. Where on the x- +1if-b. nhwoxpn :wa;axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x = 2a. Where cwwa 9uiim,g2*l8 1jw* jec 7gyan a third positive charge +q be placed so ,m a7wc*2e 1iwgwg8*iyj9j lu that the force on it is zero?

  A copper penny has a mass of 3.0.8u 7c9ccmcyyj( xla1f 0s4o o 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 against the force of gravity by the adl v )j eoz5q oxsj0+k5rea.-3ttraction of a fixed proton eljrdk )o+ sjea x.3v5qo -z05some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconductingl4d55 s5vz-m2yg p6jci2jx ge threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them a2xdmc gzv5yj 5g-pe6l4i 2s5 jpart 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 magnitude of thexk9s ) )qjbz+c5vjkx - electric field at a distance of q+k-b )5 csvxjxzj9)k1.0 m from the nucleus?

  What are the magnitude anu+: deokub za7+8pii8d direction of the electric field at a distance of 1.50 m from a 50.0okipie+7z8 +:a d 8buu-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What is the magnitudcky5k/ b2 wpq0j2h-cle of the electric field at the location of th-cw5jphk bqyl2k02c /e test charge?

  A 5.0-C charge is 10 m from aamq;x u fupr1.lwq117 small test charge. What is the direction of the electric field17 a1.lpu m1qwfx u;qr?

  A 5.0-C charge is 10 m from a sec k+q0j 5p rm.0d(5rjv /kmqo5namx,mall test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed jnx q,5dm0rvpm k5aqm5o+/(r jc.e k0 at the location of the test charge?

  Two point charges each hah/6xwa-cc bo )n28kcxve a value of 3.0 C and are separated by a distance of 4.0 m. What is the elexhcawc 2 nc)o/-6kbx8 ctric field at a point midway between the two charges?

  A 5.0-mC charge is plac/mjh4l0x )zsw 6cp x;led at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric fs;6x)l0 hjp xlc/ wmz4ield at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm 1rlk, n .4abbemark of a meter stick and a -4.0 mC charge b ra lb4n1e.,kis placed at the 50 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 mC are ps ,4cxe7,nnej laced at x = 0 and x = 0.20 m. What is the magnitude of the electric field 74n,neecs j,xat the point midway between them?

  Three 3.0 mC charges are at the three corners of a square ofn5 n, 6c qe2; ybz kk4 yzck:7dtwm5izu8.nj2y side 0.50 m. The last corner is occupied by a -3.8;mk54 nit7uz zccdqy n:w2yne ,k .yj2kz5 b60 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 p5u- h,8j9u6gk 6vu q pu,wpstylaced 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 p85 g96uw6- t u,u qjhsy,uvkpthe electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 mC when b;tthl(.pif6 1pft:fc s5(xt* xdtr7it is placed in a uniform electric field. Whatlr h.1:tct pt ;f6xf*s5t f((xd7pibt is the magnitude of this electric field?

  A particle with a charge of 4.0 l )wvjgp 6li x(+*:gqamC 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 iuv c*6ewet(- ns placed in an electric field of 6000 N/C pointing downward(- e 6c*nevutw. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a cca91 crpv0g9l-r -w+ ho3or naharge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force 9rnr-rw g0a-vo+ca1l93pc ho of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge;hs-5l t kt itmman89* of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere'9 kn*tt5lstm8a ;h -ims surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.woi t0qvk 7l)fy i q1j0j6kv70-2dfuk0 mC. What is the electric field 6.0 cm from the cenkvl f k26qwo01tydjikif 7uj0qv)0-7ter of the sphere?