State the law of conservation of electric cfs/ 0 3gunj)w/ /jephcharge.

  Is it possible for two negative o z tl.2gyvn,x)tf 1jpo/v-fly ./x6h charges to attract each other?

  Is it possible for a td9n 2o3: s r+ak)kegrpositive and a negative charge to attract each other?

  A glass rod is rubbed with tw(hc yto5g7gf5 pt 1xez uef0x;;z (cj(7s *da piece of silk. During the process the glass rod acquiruo;75 (5wy fdz(zx1t( hjec tetx;f07 gcsg* pes a positive charge and the silk

  A proton carries a

  The model of the atom sho;.qx2/2zdm1dhp kx d), q6 d0 zctgmbmws a

  A neutral atom alwaysfz/i2f o :pcn lz y hnj-40kvop1le gd7m/.,*p has

  An atom has more electrons than pro1 ukh7*bx zl,jea sz kt06(d5xtons. The atom is

  Materials in which thee 6cy 7cl:i gw+h3mizo dho.503yhi3 c electrons are bound very tightly to the nuclei are referrede: o+cmo0hcliy 3 7hw3c. zdi563yhig to as

  Materials in which the electrons are bound very-ka ( ahx:)2tktgsex 7 loosely to the nuclei and can mov2kghta:-ae7s tx) k (xe about freely within the material are referred to as

  A negatively charged rod is brought near one en3 h38v cy ooen6n: wke3 zm35xtdme2-wd of an uncharged metal bar. The end of the metal bar fa56m hvwy eczdnekw 33o n-2me:x833otrthest from the charged rod will be charged

  Sphere A carries a net positive charge, and spxxj)p/t r7xk 8mc u/d7here B is neutral. They are placed nx7m/8k urcxpxj)d7 /tear each other on an insulated table. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively chargdujq.alds2:1 h9try.0 l. hroed rod charge an electroscope positively?

  An originally neutral electroscope is briefly touched with a posi 81jyl))ktlazwn wdvl6h3r5d. j j+ 7htively charged glass ro7hwn+ d ))j 5wk18ajh.ly drlj63vzltd. The electroscope

  An originally neutral electroscope is grounded briefly while a positively chay59x6mz5-le p y7 ice+st/hgl cd;3zorged glass rod is held near it. After the glass rod is removed, the ec itcs e7-h ;yxo 6/3p5zle9 d+5zlmgylectroscope

  A positive object touches a neutral electroscope, and the leaves s y.i-xb(v)/u.u ajz( nvsal )deparate. Then a negative object is brought near the electroscope, but does not touch it. What happeixs .l) .vj bza)uv/ynu-d(( ans to the leaves?

  A large negatively charged object is placed tdrpz2 n+e; /)m co ,pfw4m4zron an insulated table. A neutral metallic ball rolls straight toward t zzw; n,ppo dmrm4/4 r+cte2)fhe 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 Coulomb constan8(*z qhxta9rgssz -o 3n /2s0v-dw7zae9ck yi t $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charge iyh4 (hmb 57cq1ikd y6os larger in magnitud7ic 4d(b5myh k y6hq1oe than the second charge.

  Sphere A carries a net i0tr+y2bet9lvj* h4 ,,c0 fev euzk,lcharge and sphere B is neutral. They are placed near each other on an insulated table. Which statement best ke f ljl9e,uetr ,i ty*v04,b+2hv c0zdescribes the electrostatic force between them?

  Two charged objects attract each otherh5j+aavi zn9qr + s tik-w+(t. with a certain force. If the charges on both objects are double ik t+.9 j-wntzv5h+(i qar+asd with no change in separation, the force between them

  Two charges are separated by u j13e21d3fmcrq5ydva distance d and exert mutual attractive forces of F on each other. If the charges are separated bf 15 d3ye1mv2 qdr3ucjy a distance of d/3, what are the new mutual forces?

  Two charged objects attr-:,h8way y hy(x ktx0iact each other with a force F. What happens to the force between them if one charge is doubly-hkw8tih : x 0a(xyy,ed, 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 distance of 1.0 m. Wdyu a5(q /n. bkb.i0oshat happens to the magnitude of the force on the proto/y. 0i 5qandub(sk.b on if a second electron is placed next to the first electron?

  An electron and a proton are sepax: 4l1uyuy qb-rated by a distance of 1.0 m. What happens to the magnitude of the force on the first -4xubu lyqy1:electron if a second electron is placed next to the proton?

  An electron and a proton are separated 9435iebqk:d *)g qy x ucufe 94ha3aubby a distance of 1.0 m. What happens to the bg yc 33459:) uek4a9qfdxu uhqiba*esize 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 center of a7lp:oal*n p(x (g3uqr square. When a second point charge of -Q is placed at one of the square's corners, it is obs73: ogappn*(u(l xr lqerved 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 square?

  A point charge of +Q is placed at the centroid of an equiw*6;m ubfey s*lateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an em*b6;*yfwu s 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 following is not a -makspoovvby mxbu 4 5 j)+c)w6 -:u,xvector?

  At twice the distance from a point charge;*lc -p65g mknrvztddemc.t4q1 li: 2, the strength of the electric field

  Is it possible to have a zero electric field valuepx1nfa)imt0k3 m0i 0n2cmsr* between a negative and positis0c*2ir nn10xmp)kf0t m i a3mve charge along the line joining the two charges?

  Is it possible to have ar6wn* u7otzs+c k0h,m.k3yuf6e . rbo8i -jjd zero electric field value between two positive charges along the line j uh rifut*n0r.-kje.oswjkm y,6zbc+7do836oining the two charges?

  Electric field lines near mz7qe-a .*qt5pbup*d 8qp)r gpsitive point charges

  The electric field sh 4o)a se3-,mez *njuyhown

  Can electric field lineqpmrt y,0k*- q5nfjb4cp1mim-- nod-s intersect in free space?

  A solid block of metal in electrostatic equi6ykej;i/uqtjm)4xi nrm9u( 1librium is placed in a uniform electric field. Gtkx /i6; e)urj1ujim y( 4qm9nive a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters are 7 ki3e,0oxp; ajb+vbz.e)v.b ihk xg( each given the same charge, the electric field (E) midway between the center and 3jz +)e;7vbp k,0h(exik.ogib bavx.the surface is

  A cubic block of aluminum rests on a wooden table in a region where a uniforlq u.h) iz1u9fp1q 5esq;/drx6, ckxmm electric field is directed straight upward. What can be said concerning the charge on the block's top surfac6 qslz;udxk p u1x9,e/)q1 qr 5fc.hime?

  If a conductor is in electrostatic equilie-lhu 0 p4/iwpbrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphere tha3pqg fmtp us0gsx,(sx)a :+h-t is grounded. As compared to the case without the hollow sphere, the electric field at a point directl- f0qpxu(ps)a:3,s hg tgsm+xy above the hollow sphere has

State three properties of conductors in static equiliby+ 0f:hk yn*q( my/lyqrium.

State Gauss's law.

  The charge carried bca mwde5by(nwkj3 o2.oz 52 x4y 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 /m6 dwbkiz 19tmany more protons than electrons dot69idwz /1mb kes this piece of plastic have?

  What is the charge on 1 kg of proszt,sri2 w:sdt.)6c*ols d 6atons?

  An atomic nucleus has a charge of 4w bcjm ejgs (7ue;*q(d;h;hq$+40e$. 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 charqyfwn hv4-g8 :la6 df9ge values of 2.0 and -4.0 mC, respecti4 ay86dnvq 9wf-gl f:hvely. What is the magnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is 1.c guzo38zjx6ux;g6vc yxa -u2s 8b1*d0 N. Wbdgu38u6ax*xx uocj6g v8zz;s1-c 2 y hat is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart 7mh 00fj; huatare they?

  The force between a 7h1.v55znw- qt ocrop$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm al :s, l6dji:irpart, experience a 1.0-N force. If they are moved to a new separation of 8.0 cm, wha r,:i d:slij6lt is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first chau3n 1 jbos2l /o;c5vqprge 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 act 5os3l pq2v;b jco/u1ns on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of 4wvpwh3) ib8p +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 p4p3vwbhi)8 w 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges areo+*x x9guk2 wyp(b*x s7 siojw+ /t(md 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 7j*xg(x*o +wwm9 i/(s oubtd 2y+ xspkat x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is plhx,pcov- ,xo hqp,f )49n fkh3aced at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It i3h,x 9,n- okf vpf pq),xohc4hs 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, 0.1pvtel,z(4k, m0 m); Q3 = 5.0 nC is at (zpvl4,t,m k e(0, 0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.7p;ln dx/ hayrgx8 +;o30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thnlxadx hgo+8p/; 7ry;e direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the ver1wbpy uujsmgucoq, 4m9 x9;+0 tices of an equilateral triangle ww u1;m 4,m+g9pyuouq9j sx bc0hich measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?

  Consider point charg9;l hoyb( pw,bes of +Q and +4Q, which are separated 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 force acting on it would be ,(wbyhp bl9;o zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Wher6qcx +d 4ey.xye on the x-axis can a third charge be placed so the netdq6xy +x4yc e. force on it is zero?

  Charge +2q is placed at the origin and chf2.n;j ez nh(uarge -q is placed at x = 2a. Where can a third positive charge +q be placee.nj hnzf(u 2;d so that the force on it is zero?

  A copper penny has a mass of 3.0 g. A twbxc;,nd* mp hy3zr 0xy+b66jotal 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 against1 jblx0,6-cxoren lo+8pf qb 05ml0fz the force of gravity by the attraction of a fixed proton sompqz,b0lxl8f rl 5o+o6mcx 0 -bjne01fe distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hunz qg);v ywf:9mg from a common point by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic rw9mgqyv);f: z epulsion forces 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 +40e. What is the magnitude of podyo;f tq+p(5lp*n6the electric field at a distance of 1.0 m from the nucleuo qyt +5opp(f;*ldnp6 s?

  What are the magnitude and d o5 ob 9-skwdlke62jm:irection of the electric field at a distance of 1.50 m from a 50.0-nC chasbl5w o kmd92o:6ejk- rge?

  A 5.0-C charge is 10 m frogwoy 8whiq4a b1px2 4.m a small test charge. What is the magnitude of the electric field at th8wg .x1p4q2y4ahiw boe location of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What x3eb q uj+okgz, dpp-8z/g*.t is the direction of the electri+qdb . zp ou txpjz*,g-3eg8k/c field?

  A 5.0-C charge is 10 m from a small test charge. Wrl( 3cl702iz;fwff wa 3 znrp8hat is the magnitude of the force experienced by a8 fn23r7z ( craz ifflp0w;w3l 1.0 nC charge placed at the location of the test charge?

  Two point charges eacw/m84 sj 4rvkoh have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a4k somj8r/4vw point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a metu;ct,gxpvnn3faex);g /v55 rer stick and a -4.0 mC charge is p xg3un5,e/a x ;5 vgtr)cpnv;flaced at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0umi64 4u82vrwxmh7p b cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. At what point oxp86vm i uwhm7ub4 2r4n a line joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m.v r)6ac 6hmc9p q-d3 xt2kc9j)fiud 8w What is the magnitude of thev 96d69mhrx3-8j)watcp ck) dqif2u c electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a sqx-a9 1l eu4ed u0rjbyoxs+ .s9uare of side 0.50 m. The last corner is occupied by a -3.0 mC -x as9le1+4d9.rxe0 ybuuo sjcharge. 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 the corners 0sq.7pkv ult.w mf/x1k2zp5qof the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -3m5 wvpt0u2kkqs qfz7pxl1./. .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 int );jma0k6fw tdu uwh4 t8;6qw a uniform electric field. What is the uf8wt ;t)606aqtmhj4kdw; w umagnitude of this electric field?

  A particle with a charge of 4.0 mC has a mass t+xw1 t;lntzcm33xztl6 7 e8nm5zf(+ dsowb7 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 iryvdez: 95m7gwebk( ;47d kqmaf)dx2 n an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to (ddvy4fb w mq75 kmederx2:7akzg; 9) be suspended?

  A foam ball of mass 0.150 g carries a charge of 1 jfdcp:3/q)gc qrl5tlkp7 5e-2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude 1p ptccej/f 5kl)r q753dlq:g and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of*iwv 5 ,ve5 61vhirnkp +2.0 mC. What is the magnitude of the electric field 5.0 cm from the*env6vw ,vhi 5prk 5i1 sphere's surface?

  A metal sphere of radius 2.0 cmi,2vnzbf (ij py2 /x9a carries a charge of 3.0 mC. What is the electric field 6.0 cm from the c n2,j2a/y 9 xzfi(bvpienter of the sphere?