State the law of conservation of electri 84a- np6tmv yw3+ ,pyrmiv-vrc charge.

  Is it possible for two nega.k: ) .c29gs 4aecj n m/gczgoypkhk7:tive charges to attract each other?

  Is it possible for a positi,8ls 5nh 5pmowve and a negative charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the pry4, rge1k4:dgxq ,u:jq gjo4 rocess the glass rod acquires a positjxgrr1kyd ,4 4:eu g4 ,oqjg:qive charge and the silk

  A proton carries a

  The model of the atom shows0 qfmtnm+*o1 d a

  A neutral atom always ha1nk9m/ hs) jfes

  An atom has more electrons than protons. The atom isqhfoz1fro8xu0eo1gz km(,0f b3w2 r,

  Materials in which the electronsw fe+r+ -(j cld+xt/ z/)zp( mxzkdfpo5 5eff; are bound very tightly to the nuclei are referred ( +ezfjzfxtfm/klrc e)p5wd/5zd(p;+o +x-f to as

  Materials in which the ele485qkbt si8u kctrons are bound very loosely to the nuclei and can move about freu k5t48i8bqksely within the material are referred to as

  A negatively charged rod is brought near one end of an uncharged mey5go *ev)+,k 2;uogre /fy ofqtal bar. Theuer qoy) *2 k,/e5g;voyfo+f g end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is nef8aj emlf;fm p,x;/h)utral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statemena/jf;hxmm;e8f p, l f)t is correct?

  How can a negativelyxvrib 4i o:e/ y:abn 1ns701wx.bk(qz charged rod charge an electroscope positively?

  An originally neutral electroschr un6id(9bwgj0 ;jn- ope is briefly touched with a positively charged glass ihnr0u(6 j9d;-g jnwbrod. The electroscope

  An originally neutral electroscob1oj utlk*ga1) a84 gxpe is grounded briefly while a positively charged glass rod is held near it. After the glass rod is removed, the electrosc o1a 1)lgj8g*b4tkuax ope

  A positive object touches a neutral e xqj/*o j;-nbslectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to thbn/*sxoj-;jq e leaves?

  A large negatively charged object is placed on an insulated table. h v+/9ihl*qrz 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 therh vi/9lqh z+* 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 1ru3,i5b p qnxm/ht.9t jozm9constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. 01*m+)tphvphy1hg agThe first charge is larger in magnitude thant1g*v hg0hp)1a +ypm h the second charge.

  Sphere A carries a net charge and sphere B is neutral. They areygnlsu43)amd8vwyu 9 -937xg9xvidb placed near each other on an insulated table. Which statement best describes the electrostatic force mudya99 xdb7)s4 vgu9vngxy- wil383between them?

  Two charged objects att59w4tmv53(*dnx az v ay xaawfag* ,5lract each other with a certain force. If the charges on both objects are doubled with no c*a5gf,ay azdaw3mv9*wat4xv n5 x (5 lhange in separation, the force between them

  Two charges are separated by a distance d and exert mutual attractive force4cu;v +fs mzyr0gwdky*19 tw .s of F on each other.wkz1; f.uyrw9+y0d s * 4vgmct If the 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. Whaxhsoyi kd4if6*1-tcufez 1t52 +bly( t happens to the force between them if one charge is doubled5 lhctu*xz6iy( s i to-e1f1kb+f24dy, 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 pr o5zo,i6f;tug2xi/ac: g9 dxloton are separated by a distance of 1.0 m. What happens to the magnitude d 9 2x l5,x;uogc/at:zi6gfoiof 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 omga* (4z7ouag ts+x /gf 1.0 m. What happens to the magnitude of the force on the first electron if ag zx(m4au /+a7gstg*o second electron is placed next to the proton?

  An electron and a proton are separated by a distance of 1.0 mglt)idzj +, wvbmm1h 0d+2m 1m. What happens to the size of the for,iw 1d2tmm ghmm++ljv )b0zd1ce on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at td 5.x l-d)icumv-rwe4he center 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 centerei d).-lu-5r4 mcwvdx. 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 of an equilater:df8e b1 bbzp6al triangle. When a second charge of +Q is placed at one of the triangle's vertices, an e18p: 6zbdbb felectrostatic 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 following is not a :0 e/m9 udnt-uypxlu;vector?

  At twice the distance from rs8o..(rs zr4hj fhip 07iai iv .reas- ,(t*ea point charge, the strength of the electric field

  Is it possible to have a zero electri pca, j-f:9a8 ickp7cbc field value between a negative and positive charge along the line joining the t b 9acipfca8:,7kp jc-wo charges?

  Is it possible to have a zero electric fi8x t4whe/r6r feld value between two positive charges along the line joining the two ch wr84 eh6ftr/xarges?

  Electric field lines near (0adnb *mji; nwy.ojrxc1 0xd 6: g9kppsitive point charges

  The electric field shown ;gux+ ge,7u9 nodj 5jq

  Can electric field lines intersect -:mbsf8/muk zin free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform k byof 7)b652yg/r n/b.rspb jelectric field. Give a statement concerning the electric field in the block's inter65b yrb7gk fo./b2y n bjs)/prior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are e 28xdk6p1nklypbr 0d zr54 8mdach given the same charge, the electric field (E) midzl5x0 64yn8krrbm pdk2ddp8 1 way between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region where a trzgxt8 sq83o x.b)flmh x*9z21f m-tuniform electric field is directed straight upward. What can be said concerning the charge on the block's top surface?frqm httxb9s* 1t8. x) gz32x-zm8ofl

  If a conductor is in electrostatic equilk)olxcs1d;6l r n:;c6fa+) 5gw+onwb2ostox ibrium near an electric charge

  A positive point charge is enclosed in a hol2i343db y:rxqgj nk8ql,lf9 plow metallic sphere that is grounded. As compared to the case without the hollq:glk42bd fj x3q38nl,r9 ypiow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in sa-kwo b5u.2dzbr+t1 vtatic equilibrium.

State Gauss's law.

  The charge carried by q e .ccf:,v3/,sfmuxhone 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 protons t-jkzxx y4,c qil,z.s (.mbk0 shan electrons does this,xi-y.,ks(k 0qz x4sl cjmb. z piece of plastic have?

  What is the charge o8w+iv sr1:n p x+xyt:3fzxub;n 1 kg of protons?

  An atomic nucleus has a chege hh8y32/j b4ls*faarge 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 of 2.0 v+y)x13c aa za+p3zgzand -4.0 mC, respectively. What is the magnitude oacx+)g a13azp +y3zzvf the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.e(rhr d5i f30-s clqp/0 N. What is the magnitude of thepqel-3sr50i /c(hf dr second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart7osz qyit5k t 4129ew71byucn are they?

  The force between a q3w1kb l,j u8 f,a9fgt;af(fi$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, expefiu1+bav u77 irience a 1.0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force between them7uuiabi f7 1+v?

  Three identical point charges of 26 2xd1crlo5yy .0 mC are placed 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 the magnitude and direction of the electrostatic force who12 c ry6yd5lxich acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 jz5t: p6jtvr tw9 9p7ng17gmpmC is placed at the origin, -2.0 m C to the right at gtv 17nzj5 9: 6r9pwp7mpgttj x = 50 cm, 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 are located at the follow g7 df/1ew9: m8j)whqogkabz rx45 m;oing 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. What is the magnitude of the force on the 3.00-mC cha4j5mxkf19 eg/ obza7 mgdq;owhr)8w: rge?

  A point charge of +Q is placed at the centi.fhhv,j 8/ m7( pfu;ra:blsy er 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 th. vf/;l 7:a8,j (rhbsifpmyuhe 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 (0x:b( 2rsho6/ e dddk9k.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). Wha(k dse9rdd:26 b/ ohxkt 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 (0, 0.10dhys;bx6 kp0, zo6-nb m); Q3 = 5.0 nC is at (0, 0). What is the direction of the net force on the 5.0 nC ch6yn-xs 0ko hbbp6z ,;darge?

  Three identical charges of 3.0 mC are placed at 6vvj/q.f-u woa ,p2m kthe vertices of an equilateral triangle which measures 30 cm jowpmv.k/6a u-v2qf, 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 m74 z 5qe6npfocvz0 dd;-hrs c q1wo7.are separated by 3.0 m. At what point, on a line between the t1o5 mdqd 4on77 sc60r-ze.pzfchvw ;q wo 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 t2hmj+; baq 6j ) po,g9b,hseta +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third charge be placed so the net sjtmj bq, e6 hp92ah+,gbt); oforce on it is zero?

  Charge +2q is placed at thed*ddb5p8r1 gcdochr8 i 8)t7x origin and charge -q is placed at x = 2a. Where can a third positive charge +q be p r87p8*th8dod1c) bc5dx grd ilaced so that the force on it is zero?

  A copper penny has ary f 9zf-yiex5f23wytozf1 t y07 :vi- mass 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 against the force o xu4: ocis/dlgv/z( m-f gravity by the attraction of a fixed proton some distani:g/l/s udxz4 - comv(ce above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threl(cz r +g6mczc8bnx13 ads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them an zxc6r1c(b8g3lm z+ cpart 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 magn i+ pa3yny85ypitude of the electric fiel+ni p 8y53yapyd at a distance of 1.0 m from the nucleus?

  What are the magnitude and direction of the2jx4rn89vdk4axr 7k x :9fqkj electric field at a distance of 1.50 m from a 50.0-nC qd4kjr nf r8jkxx4v2:ax7k99charge?

  A 5.0-C charge is 10 m from a small test charge. What is thmtl ;2nogppj 2 3 znaag,9z)w7e magnitude of the electric field at the location of the test charge?7 zmp92l;ow tnapjg2) 3g,an z

  A 5.0-C charge is 10 m from a small tq,.-z2rm+3 clops v, lbb3qbwest charge. What is the direction of the electric fieldm3b,b zbqpr,2so.wl +- qvc3l ?

  A 5.0-C charge is 10 m from a small testk5nuumbd 8b:vu f/5v8 charge. What is the magnitude of the force experienced by a 1d88u5bvkn f5bmuu: v/.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separrcjf9*j (:fmtated by a distance of 4.0 m. What is the electric fief:m f(r *cj9jtld at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of +s*sa hn ho.ng6kb:o 36 k,yhta meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electri6 t,a:s g okhky*bnn.h 6ohs+3c field at the 30 cm mark?

  A 5.0-mC charge is placed at the 4bbg 9yhg8-kj9nv,3ljp+ez s0 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 3h,8p9 k glvby9z4enj+- gbsj electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = c 6*q0ci: ccefkgy4ta1g : .,n p,ta(c*yhcaz 0.20 m. What is the magnitude of the electric field at the point midway between thq agync0czyptcac fik:th**4eac6c,.1( g :,em?

  Three 3.0 mC charges are at the three corners of a square of side 0.5x)0g*(f p:y)nfndk-we3:xf yhw u lw80 m. The last corner is occupied by a -3.0 80(p)f)3d:*eh-uyf wfwlnwn x:xg ykmC 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 at tc yq93 el518kz ta(bxjhe corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -tazb eyl3 5xcq9(j8 k13.0 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 h/ kef;:mnxl)pc9 v+b in a uniform electric field. What is the magnitude of this electric mbp )xe; l+:k/vh9ncffield?

  A particle with a chf nl2yg 4ra sminyv0o( .i4f,4arge 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 an 1+x yko a89+ tv)c/l tjks6cfselectric field of 6000 N/C pointing+cl8+o/6sk91fca)tkx jvy s t downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carrieswea( gd.z+h(o a charge of -2.00 nC. The ball is placed inside a unifo(w. +dgohz(ea rm electric field, 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 carries a charge of +2.0 mC. a um e com ,g:pmb)*3y9f:ufmr(iocb 4b73sb( What is the magnitude of the electric field9b y )mc( fau:mpgo o,3bie3(s:m*m ru74bcb f 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a r.;qv8cx1p2 k7qf inz- p .rlacharge of 3.0 mC. What is the electric field 6p-qrzafn;qk 1 p28i. v7l rxc..0 cm from the center of the sphere?