State the law of conservation ;efux v5la,4cof electric charge.

  Is it possible for two negative chc r805e1 hsbebbdfr;,arges to attract each other?

  Is it possible for a positive and a negative charge to attract each o ;-dvisb(y5hnm8yd-z hy- /ybther?

  A glass rod is rubbed with a piece of silk. Durin h+meq72+neo8n6 +ikoai ax os7s7um+g the process the glass rod acquires a po 76sa7 e28+o 7aq+ims u +io+knxoemnhsitive charge and the silk

  A proton carries a

  The model of the ato)fda xtewa u803i u2:mm shows a

  A neutral atom always hg)fm*vagrf 4ewxlyn a dx4(g(h 73(tm-hr; y9as

  An atom has more electrons than pro*x-bm yhgi *q8, 6vqtotons. The atom is

  Materials in which the electrons are bound very ti6x kt+p0pvu ct0h(h.a ghtly to the nuclei are referred kpht (ht+.a 6vu0px0cto as

  Materials in which the electrons are bound very loo -9g5jobkt*2aq delw3sely to the nuclei and can move about freely *w -aj o 5k932tqgdbelwithin the material are referred to as

  A negatively charged rod is brought ramp6il/yz4ds)a. 9s2p0xnq near one end of an uncharged metal bar. The end of the metal bar farthest from tqays09lpx4a )m i.prn s6z/2dhe charged rod will be charged

  Sphere A carries a net positive x9f;prt pr(n2charge, and sphere B is neutral. They are placed near each other on an insulated tf;npr9r2 x (tpable. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positivelwgr:+ 3ki n* x:fnbc gh c3s78v.5pcnmj8qix+y?

  An originally neutral electroscope is briefly touche3d. jumg5gs j4ema:h 1d with a positively charged gl 3a14uhjgg m.e sj:d5mass rod. The electroscope

  An originally neutral electroscope is grounded briefly while b9yraqqe7e8 p)ag8ad ;e6j)p a positively charged glass rod is held near it. After the glass rod is removed, the electrjdqaqe78r9)ag ye6) ;p pabe8oscope

  A positive object touches a neutral electrva exf 1fzv63+oscope, and the leaves separate. Thenv x 613vz+ffae a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated table. z 2gu--i/cn0kab-tf n 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 forward, but does not touch the negative object. At no time does either ball touch the negative object. What is the final charg-bf n-t-gciunz0k/a 2 e on each ball?

  Charge is

  What are the units of the Coulomb8ja.vn)n6 rpk constant $k$, which appears in Coulomb's law?

  Two charged objects ahi u o..xumz;))6gpa are separated by a distance d. The first charge is larger in magnitude than mu..pz)xoag;)u a i6 hthe second charge.

  Sphere A carries a net charge and sphere B is neutral. They a dz dkz2i6g10mre placed near each other on an insulated table. Whizdm 0k2zi61dg ch statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain forcm5a1 +dkt/krbe. If the charges on both objects are doubled with no change in separation, the force betwetk /5krbam d+1en them

  Two charges are separated by a distance db8b7n(gxs2 m/k0dc z y and exert mutual attractive forces of F on each other. Ic/ syz20mn 7 g(8bdbxkf 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. What ha j)txnqp9c.wh/*o,jrdx-stsu5 94 rpppens to the force between them 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 x9q,j/)nsth u p- 9pxwr j ort4.d*5csis now equal to

  An electron and a proton are separated by a ddvtm 6-(3tjzmz z w,8s3f2aj cistance of 1.0 m. What happens to the magnitude of the force on the proton if a vd3 jaz wt(jzz-28mcs f3t,6 msecond electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1fjq q36.0kqst: jb b0y.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next t b. :06ystbkq0fjq3jq o the proton?

  An electron and a proton are separated by a(6ykh n*ml4-mws 6gc56fijen distance of 1.0 m. What happens to the size of the force on the proton if the electron is n65jw4n6gf 6mle*hysi(cm - kmoved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a second3egkejt417 (9c gloxi 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 magniol jt349gk i(ce1g7 xetude 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),zy4u3 jpd)q (5jshk nos ay-al 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 magnitu)45njj,a y dq szuph-ko( s)3yde 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 no6: xpxkz) t iev05hf:k xke+c7t a vector?

  At twice the distance from a point chargeo5cl,x,34lzc484 vsi b ktysmhyhw 5-, the strength of the electric field

  Is it possible to have a zero electric field value between a negati -j8kmmg0l /gtve and positive charge along the line joining the 8m0 ggmt/-klj two charges?

  Is it possible to have a zero electric field value beim qb)nw2c0wv 4+b 7sztween two positive charges n)mswbv +4w q2icz7b0along the line joining the two charges?

  Electric field lines near psitive 1n6; fd2uswh cis 5,czw ;.d(ehml .+yogmsz2point charges

  The electric field sho b: rh,t3fyy5pwn

  Can electric field lines),r0 6r9t3txzx8piq n n3ralrgdf5,r intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a u/ 9v*fw p7gb p7owopi,/ +6s3 xkfwayjniform electric field. Give a statempko xb/7w3 p7ogf*+j w/,visa6y9fwpent concerning the electric field in the block's interior.

  If a solid metal sphere and a hollom6 ,wm-fk,3w+uj pxfp ee*(z qw metal sphere of equal diameters are each given the same charge, the electric field (E) midway between the center and thefj ep-w(*3z qm f6xukmw,, +ep surface is

  A cubic block of aluminum rests on a wooden table icpl2 9abzc vg 4oz:oh+):o7 wyn a region where a uniform electric field is directed straight upward. Wow9h+2y:4gz op7bvoc cl)z: ahat can be said concerning the charge on the block's top surface?

  If a conductor is in electrostatic equilibrium near an ele(wm0(kyldabyc /2 5jv ctric charge

  A positive point charge is enclosed in a hollow metallic sphere tha fzn6op6tl+ehj02h9 yt is grounded. As compared to the case without the hollow sphere, the electric field at a point d z e2 6o+9jfythh6pln0irectly above the hollow sphere has

State three properties of conductors in static eqb1p)gg i)s1 youilibrium.

State Gauss's law.

  The charge carried by on0 hl8sx4wnm 36wv:v xne 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. Howo,1hrtb 6nrnn -d35d v many more protons than electrons does this piece of pla t,d5 1ndrn 3r6nvohb-stic have?

  What is the charge on ct*w 7pza5 eozj1e40c1 hjc9a1 kg of protons?

  An atomic nucleus has a d- 22 (lclhm/kim8a/ cz 1wwkicharge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separaevvkzj+0yg / +3qjw1z7b:depted by 1.5 cm, have charge values of 2.0 and -4.0 mC, respectively. What is the ma3qw+z7z+g y:vvjkpdje e 1 /0bgnitude of the electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the foz 5(.8,n ymaonn hdhj;rce between them is 1.0 N. Wha;nhmyh o,z(8nn. dj5a t is the magnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are they?7 .rsadb )g*2whrgj, n

  The force between a jv :bs(1hj0 wb$30 \; mC$ 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 1.0-N foq2 e+,wy 3ejgwd(8f nwrce. If they are moved to a new separation of 8.0 ey (wn8d wq +wgf3j,2ecm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. vb9 +8prtuly7The first charge is at the origin, the second9ly ptv 78+bur 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 at the origin?

  Three point charges are placed on thfv+eng j+ ymf3vtra:.e- 4+j he x-axis. 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. What are the magnitude and direction of the electro je4.fg rajh+ f+y-e vnm+:tv3static force which acts on the charge at the origin?

  Three point charges are located at the follow*2 fto q(kgupl1:( zfhing positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = gp :(ofl2uh1 (*zq tkf3.00 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 charge?

  A point charge of +Q is placed at th 9z: jfk1t6u da(*qgz/9rat dte center of a square, and a second point charge of -Q is placed at the upper-left corner. It is observedaa9k :t(d* ttfrg 6zdz91uqj / 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 2f5c nirwm lclf 91zf 1w6-q)his at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net fo 91i2fzwl-hr)mfwc1n q56 cf lrce 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 i0e/;;5zxv vk,f6qa n/c ekpuk s at (0, 0). What is the direction of the net force f /5 0e6ac;vu,knq zvkxe ;/pkon the 5.0 nC charge?

  Three identical charl7:)ik4rimfa) :ozwdges of 3.0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magniwazil)romk4 7i::df)tude of the electrostatic force which acts on any one of the charges?

  Consider point charges of +Q 8v/etqy1 ( -t 5su06ua rkd q7kdo09qdjiiq8hand +4Q, which are separated by 3.0 m. At what point, on a line between/1h (-d v8k qq0ie5sy 9qo0k a67r 8ittdujudq the two 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 a +9.0-C charge is at x = 4.0 m:mot y7 n;f+y-xn *q)jz1wbvo. Where on the x-axis can a third charge be placed so the net force on it xj*fo qn ;w bn)17 tmz+vy:oy-is zero?

  Charge +2q is placed at the origin and charge -q is placed at x znuuew9o5m/0 = 2a. Where can a third positive charge +q be placed so that the fuu59nz0moe /worce on it is zero?

  A copper penny has a mass of 3.s2qwgm(ct .( b0 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 attractio m8v+ren6p6dsskq x10n of a fixed protpqre0 s86nm6k+ sv1dxon some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a com2k :bz*yv.e dtmon point by nonconducting threads which are 30 cm long. Both are given identical charges,.e zvy:2kt*db and the electrostatic repulsion 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 the electrix*( px7xc6 admc field at a distance a*x7cm (6dpxx of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field e, j0.upqgg) 4o8ubc7bn 0y biat a distance of 1.50 m from a 50.0-u8b) b7.cg,4 bgji0upe o0yqnnC charge?

  A 5.0-C charge is 10 m from a small test charge. ;. yfm5pd6ku(go alf.0,vngq What is the magnitude of the electric field at the locatiaknv.ply0q, .f gfgd(;u6 5moon of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the sgypuyi 4 k/ -8;5pjrgdirection of the ele r 5g8yjgip4s /;yk-puctric field?

  A 5.0-C charge is 10 m from a small test charge. What is ts+ncf / 0s-vomhe magnitude of the force experienced by a 1.0 nC charge placed at the location of the test s/0c-f vo nsm+charge?

  Two point charges each have a value of 3.0 C and are separated /n r:tddngq+; eu:b2)z3 o t9xmi+vtqby a distance of 4.0 m. What is the electric field at a point midway between the two charntndt2+;)z bgduo r9:m:x3i qe+/ tvqges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 1qcc*hlky*lws-23 2 yg; kyk8e teg*smC charge is placed at the 50 cm mark. What is the electric field at the 30 cm ;lty8y1kl hskkegc-s*c q2e w3yg*2* mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and o-j81y q t g+8ojltpi0a -4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges il8t-1+pt0j qijyo 8 ogs the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x * q72q4n+d-x,xne7za zgzw ov= 0 and x = 0.20 m. What is the magnitude of the elxz2d4, o7aeq- n *+gzx qwvzn7ectric field at the point midway between them?

  Three 3.0 mC charges are at the three corners t9h; 0lxux+wwof a square of side 0.50 m. The last cornew;u+0wt 9h xlxr is occupied by a -3.0 mC charge. Find the electric field at the center of the square.

  Consider a square which is 1.0 m on a sid;x41m kylo-v1pkhk1w5t+ag 2ysed( z/ zvfz7e. Charges are placed 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 ap-4tyo1/k e;51+shkvwz kvagx21md(yz 7zlft (0, 1). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a h7sic06x : npuotfsq44d3 6xrcharge of 5.0 mC when it is placed in a uniform electric field. What is the magnitude of this elecqt 7nh c 4:us4ix3sro6xdp0 6ftric field?

  A particle with a charge of 4.0 mC has a madk6d t21x mwwyp31 5bzd p(f2yss 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 i ;kfqga 5fg4a(rdj(d i;f 1w;hs placed in an electric field of 6000 N/C pointing downward. What charge whk(dd4 i(;;ff gr; aqgjf15a must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -v0hy i nlg-q 0p f*xmcw2+m4c42.00 nC. The ball is placed inside a uniform electric field, and is suspended against the forcy pv chn m40*fgm+2w-il4qc0 xe of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm caz 5ttc *4+lzq;k z-. wytpbasd*m(pu+rries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from .4 -;tqdpt p(y uzam**s+z5zbtw+clkthe sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. va: c:kv t*or:8s+r bu What is the electric field 6.0 cm from the center of:s*vt+u v :b8kr:roc a the sphere?