State the law of conservation of electric charge.x p0eb+2s 4jlt

  Is it possible for two negative charges to attract each otqsce.ch bxbrk(. )5 e3her?

  Is it possible for a positive and a negatig(3tlv5 ue5iive charge to attract each other?

  A glass rod is rubbed with a piece of silk. During the process the rxr +zo(e9uu)glass rod acquires a positiv+eoux9r)z u(re charge and the silk

  A proton carries a

  The model of the atom sho zav4*b q d/rqu:x2r7yws a

  A neutral atom always haow h mt/n.c2:cs

  An atom has more electrons than protons. T4ey.wkcs88 i 3df9b ljhe atom is

  Materials in which the electrons are bound very tightly to the nuclo,mcwu5htp; 0ei are referred to asuc;0 oh,t5pmw

  Materials in which the electrons are bound very loosely to th hf)ex)a )pgy5vku9u6e nuclei and can move about freely within the material are r6ha9)eg)) k5yfxvpuu eferred to as

  A negatively charged 7h*x wofsni:go3e,*krod is brought near one end of an uncharged metal bar. The end of the metal bar farthest from the chargeio3,s* wfneg7* oxhk:d rod will be charged

  Sphere A carries a net positive charge, and sphere l)w2bueo2) xuB is neutral. They are placed near each other on an insulated taluuebwo) 22)xble. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electroscope positiv fzq6+ vbu y6bt07ie3oely?

  An originally neutral electroscop /:hhu gbjis e2c+l72re is briefly touched with a positively charged glass rod. ei: rugb2hshl72j / +cThe electroscope

  An originally neutral electroscope is grounded briefly while rw jc0,h /+c7-+lsbcpy*yauiq)k7py a positively charged glass rod is held near it. ayp*p7js 7+yucy+/,hcw lci qk r)-0bAfter the glass rod is removed, the electroscope

  A positive object touches a neutral electroscc4 2pssll04ndope, and the leaves separate. Then a negative ln2c4lsp4 sd 0object 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. y pbq1j( 2kr,1llqs*x A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed1*yxs1r , (kl2j lqpbq 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 Coulomu.gmywwv wt2 ;xt-o;1 jdj7g8 b constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distarw1ls g8z /br1nce d. The first charge is larger in magnitude than the secondgl1/sz1rr wb 8 charge.

  Sphere A carries a net charge and sphere B is neutr kn l :szu-x-n0d6s2zunyb -,tal. They are placed near each other on a-zy0knd2 nu,x-l6t su-z:n bs n insulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the co6 6 tjc;uzjd *yx1+gjd(r0odharges on g6o yd0;dx*+6jzurjt(jco d1both objects are doubled with no change in separation, the force between them

  Two charges are separated by a distance d and exert mutual attracta f/o;ct 5bg/eive forces of F on each other. If the charges ab5ct /o f;g/eare separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each other with a force F. What hapq 00rm q/ciee 9wp0n/gpens to the force between them if one charge is doubled, the other charge is tripled, an9w0qern/ mqcp0/ g0i ed 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. What happens to2zq.3xqlj8p og: xui 5 the magnitude of the force on the proton if a second electron is placed next to the firs5ux jq xzog8q32p li:.t electron?

  An electron and a proton are separated by a distance ofjx (j5p+. ns4cj tym2x 1.0 m. What happens to the magnitude of the force on the fiycjxt 5(2.sx+p4nmj jrst electron if a second electron is placed next to the proton?

  An electron and a proton are separated by a distuve 3 h+10gcxvance of 1.0 m. What happens to the size of the forchuv1g+ 3cve x0e on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed a5j 8c7l2, e qzj0lpwkvt the 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 center. Now, identical charges of -Q are placed wv,80 ckezjplq5 7l2jat 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 equilater5t- o3akl 9xbuwbft*i4 +ua) dn*w ka;al triangle. When a second charge of +Q aoub) dx;lt*k 3an uw*5fk+ta bi-w94is 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 following is not a vectorc)+w/.2t gph8k ln-yqall.qi ?

  At twice the distance from a point charge, the strength of the electric ;,tvp p y1.zoxfield

  Is it possible to have a zero electric field value between a negativ (j.cw x7e2jxf sm1;snh vwjorw), -+je and positive charge along rj,.hsoj-wxnvjj+ wmf71 ;wx c2s )( ethe line joining the two charges?

  Is it possible to hah/mogv/ot66dx3 (4 jjwqes)a ve a zero electric field value between two positive charges along the lid3)mg 6/t(osaw vje/hx64q oj ne joining the two charges?

  Electric field linesd iude/0 in8/a near psitive point charges

  The electric field shobx lhj;88m: xfmgl1 h*u47e emwn

  Can electric field lines intevn8y z6m38bvw mcd l93rsect in free space?

  A solid block of metal in electrostatic equilibrium isvnu w6c+g-sk( placed in a uniform electric field. Give a statement concerning the electric field in the blocwcv6s(n - gu+kk's interior.

  If a solid metal sphere and a hollow metal sphere of equal diameters a4lgimh;r y6 u/re each given the same charge, the electric field (E) midway between the center anigy ;hml4r/6ud the surface is

  A cubic block of alum5x1 2msd42tzea;jn b8eyv*ja inum rests on a wooden table in a region where a uniform electric field is directed straight upward.td 4ejza s5;v8ajm*xnye1 22b What can be said concerning the charge on the block's top surface?

  If a conductor is in ezni am bf8 019yn5hfgxl.gy: 4lectrostatic equilibrium near an electric charge

  A positive point charge is whgkm1 iwry-g 2xe-.qn m(b-1enclosed in a hollow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above t2 - kw.-1yi(grm1 qhxem-b wnghe hollow sphere has

State three properties of conductors in static equilih4fx8s;m5 n2f 3s5stgvrr/ jq5i:fjr brium.

State Gauss's law.

  The charge carried by hbay 3q3n4+stht4cknrdi*c) 7l(2 x pone 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 mcm /z twr,b 79hm.bp1haxwo 53any more protons than electrons does thi zpo ,h.r3w/m71thmxabcw9 5bs piece of plastic have?

  What is the charge on 1 7b6as5qcx tg0 kg of protons?

  An atomic nucleus has u*g( +qbx cp+zh 1lz*2fh igi9a charge 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 value jvi n8-xu*2gms of 2.0 and -4.0 mC, respectively. What is the magnitude of the electric force betw2nmx*u jv -i8geen them?

  A 1.0-C charge is 15 m from a second charge, and the force between them is p8-)bwtte+6 -ahe44 ss32 ohndkyfew 1.0 N. What is the magnitude of the second charge?sd6oe yf-2-k n8+)w e43pea4th w bths

  Two 1.0-C charges have a force between tlc51vq v b nd(9 rtll e):-:kpduo*7oshem of 1.0 N. How far apart are they?

  The force between a is+ea.wg 9u9h$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initiallytn 7m9-eau0 xf l0dzv) 2.0 cm apart, experience a 1.0-N force. If they are moved to a new xau )070zl9 tnmfv-deseparation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are pej1ncx ; (ds9wlaced 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 whicxewn(dj9s ;1ch acts on the charge at the origin?

  Three point charges are placed on the z4c w)y,epcl;/v b0prx-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 tl wp,pzc;c/4vbey r0 )he 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 following positio 0,8t w:tssla 2l)a1tz b5axy.tw,omh)bca /f ns: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC 1t.thc ozt,aw )l,s50 mwaayst2 f x/8)lbab: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) xt;t ,h).xhdzvqwp: at the center of a square, and a second point charge of -Q is placed at the upper-left corner. It is o; qh.hw,p) )v t:zdtxxbserved 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 =ko m5+qujg1pob9/z 1t -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the magnitude of the net force on the 5.0 nC chargm u5 p b/o1+zqto91jgke?

  Q1 = 6.0 nC is at (0.30 m, 0); kbjy9 p7f ed1+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 on the 5.0 nC chargfbk1+p7je9 dye?

  Three identical charges of 3.azea(f hl h1-9-:rx7ny tf+c f0 mC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is tfxy7:rl(th 9+1 a fnh f--cezahe 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.,wt8dxrf7 - mwdd)j1m 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 d r7 m1)8dt,jmxww-f dzero?

  A +3.0-C charge is at the origin and a +9.0-C ch zwx l)b:kls3bugj (3(3rmk*o arge is at x = 4.0 m. Where on the3usjx gwkl (rbl3 *mz3o) bk:( x-axis can a third charge be placed so the net force on it is zero?

  Charge +2q is placed at the origin anue)h dv 0:ggz oqme3:3d charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zh:u0:g)eq3g3e zvom dero?

  A copper penny has a mass of 3.g kd6syk,xja06eu km4 8t:yq/ 9dcgl 90 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 fo,4u asw/re,njrce of gravity by the attraction of a fixed proton some distance above it. How ,saj u4r/,ne wfar above the electron is the proton?

  Two 0.20-g metal spheres atiz0.reozk- h:tq t:,lyg +d,re hung from a common point by nonconducting threads which . ,he dqztgit: zky0+lrt:,-oare 30 cm long. Both are given identical charges, 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 charg-b cb: c(a- jjozkb(k*e of +40e. What is the magnitude of the electric field at a dista -(-:kcaoc b(bz*bjkjnce of 1.0 m from the nucleus?

  What are the magnitude and direction of the electric field at a distance of 1.50u/98yw:lvw0n 2 opawa22i)kpnkl2 z q m from a)vu0za2kiwown9q p:28a lly /k np22 w 50.0-nC charge?

  A 5.0-C charge is 10 mm l*pn2 8b rn5 q.xze0fdbf+32y rz.uj from a small test charge. What is the magnitude of the electric field at the location of tb y.f8dfe5rr m0 .23up2xbzz q*nnj+ lhe test charge?

  A 5.0-C charge is 10 m from a sml2sp0ydi ;b/yall test charge. What is the direction of the electric;yy sb 2ldp/i0 field?

  A 5.0-C charge is 10 m from a small test cht-.bt 0x4nqcmarge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the locxbqt0 nt cm.-4ation of the test charge?

  Two point charges each have a value of 3.0 C and are separated by a distan yb+,okpa 8v/ a5qp-ksce of 4.0 m. What is the electric field at a point midway between the two ch8 paao b-/vpyk5+ ,ksqarges?

  A 5.0-mC charge is placed qhruga .). /ojat the 0 cm mark of a meter stick and a -4.0 mC charge is placed at t . )oharg/.jquhe 50 cm mark. 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 y2zy:xt ik7 lcpxv;syi g0)dn+g) :b1 and a -4.0 mC charge is placed at the 50 cm mx:ydgzikytxbv) gis cn +:1l p;0 2)y7ark. At what point on a line joining the two charges is the electric field zero?

  Two point charges of +3 yj8nx*l1 3 q5dalme(o.0 mC and -7.0 mC are placed at x = 0 and x = 0.20 m. What is the magnitude of the electric field at the point moj x *l58(13dmeaylnqidway between them?

  Three 3.0 mC charges are at the three cornoqcgk1 ywq8octocrp* + ) b/;,ers of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Fin+t;c gyoo)pqw8c qco,kb /1r*d the electric field at the center of the square.

  Consider a square which isr7aqu u8 (hu*f 1.0 m on a side. 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, ruq h8u(*uaf7 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 ad)o6s+f,nbor f;)gb p charge of 5.0 mC when it is placed in a uniform electric field. Whadrboo+n)f)f 6;s gbp,t is the magnitude of this electric field?

  A particle with a charge of 4.0 mC has a q et4*5ily9jeume6vfl.c( - gmass 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 o yqrv+,sw*kjb* 6 y*hof 6000 N/C pointing downward. What charge must be placed on the ballsb*yr** w+yq, jhkov6 for it to be suspended?

  A foam ball of mass 0.150 g carries a chapk8t6h;mef8q+ w ;e1g 7utzk;htvr 6 irge of -2.00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What a;eghi8ek61 h8t mwt kqv+r ;6 ufz7;tpre the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. bf6.uq+) m/lfdslv+a What is the magnitude of the electric field 5.0 cm from the sb+6/uf lvd)l mqsfa.+ phere's surface?

  A metal sphere of ra .gi6.k* xbezc)vlpk5dius 2.0 cm carries a charge of 3.0 mC. What is the electric field 6.l.xgzc bv6 .)ie*k5kp0 cm from the center of the sphere?