State the law of conservation of electric chargl -q1 hmjf)claz;41 kme.

  Is it possible for two negative charges to attract t;xny +7jmpsk4p4m* f each other?

  Is it possible for a positive and a tm09b6v(3yfwcu ytc v cu r5cs f;56q4negative charge to attract each other?

  A glass rod is rubbed witxgik4f72h g 4xh a piece of silk. During the process the glass rod acquires47 gx2xh 4igfk a positive charge and the silk

  A proton carries a

  The model of the atom shows ak *xz 7led/ xpn5qf37a

  A neutral atom always hsj:l58toef; e as

  An atom has more electrons than protons. The atom i(7ssh e;3gxmis

  Materials in which the electrons are bound very tightly to the nuclei are refezwln ;o1k q1.o-1nnrrrred to as1nor-1lqnoz r w; kn.1

  Materials in which the electrons are bound i v6it--i/dj i2lj5,ydjv8ef very loosely to the nuclei and can move about freely within the mat,it ivy68e 5-i /d2fljdvj ij-erial are referred to as

  A negatively charged rod is brought near one end of an uncharged metal )d6r;k .h8xs(kwoq vabar. The w86kk) ahxso;(r vd.qend of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is neutral. They.erj (ua dq;) ejox.4 cbov4g2 are placed near each other on an insulated table. Sphere B is b4b; j)ear.do2.x geu cjq(4ovriefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged rod charge an electrmpq u f*qaa*n9din07 )oscope positively?

  An originally neutral electroscope is briefly touched with a positively char1pt 2dev1io z-rr4x(dcbqx 6;ged glass rod. p-qrcixd o6z;vtx (2ed 1 r1b4 The electroscope

  An originally neutral electroscope is groun7vqb9p, kudr0gy iu4) ded briefly while a positively charged glass rod is held near it. After thb7diru pvq 9u,40yg)ke glass rod is removed, the electroscope

  A positive object touches a neutral yvrqx:4vz q*ov ci 1o(299zjdelectroscope, and the leaves separate. Then a negative object is brought near the electroscope, but doerx iq4zoy2 1*q(vz:vv9co 9jds not touch it. What happens to the leaves?

  A large negatively charged obj)fkf -bx 9tqjd .(vdj.ect is placed on an insulated table. 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 neg9 fjjd..df-qbk)t xv(ative 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 *5(vxvep 9n uvthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separatedc-2w+- an: )u oownanjh()m lr by a distance d. The first charge is larger in magnitude than the secu(n a m--j)2o)cla:+nhnww or ond charge.

  Sphere A carries a net charge and sphere B is neutra*yt l:v3)j6x, k* jg4k pwpwpil. They are placed near each other on an in4t,) jyx *3vi p* k:pjkgl6wwpsulated table. Which statement best describes the electrostatic force between them?

  Two charged objects attract each other with a certain force. If the charges a cpkc1q7c lu+,l4 ru(9k7beoon both objects are doubled with no change in separation, the force betwe7kl 1u,ac4+opbe cr7cuk 9(lqen them

  Two charges are separated by a distance d and exert mutual attractive foo+r6de-puyt. 2p*cc 9ubaap:rces of F on each other. If the charges are separated by a distance of d/3, what pa d6 -:* yaebrpc upu+.9c2toare the new mutual forces?

  Two charged objects attract each other with a forcbw 5;sr8ybxp 1e F. What happens 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 is now;wsb5b 1 xyp8r equal to

  An electron and a proton are s sz rpbva/8l3,4ui, mteparated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electronlit 8pau4vs3m, r,b /z is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.0kss nhw c(;g14 m. What happens to the magnitude of the force on the first electron if a second electron is plaw1h nkcg(4s;sced next to the proton?

  An electron and a proton are sepa5e.j pm 34hdzcrated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to cj 5h3e .dpz4mthe proton?

  A point charge of +Q is placed ak6x/-jnf c7 gxt 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, idenc7-jgxk /6nx ftical 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 equilateral tria2dy sx;x(sz0 wngle. 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 magnitude of the force that acts on the center charge due to a third charge of +Q placed at one o0 z(2s x;xydwsf the other vertices?

  Which of the following is ebb, e1ga+f6 h3wrz 6 47jexzgnot a vector?

  At twice the distance from a point charge, the strength of the elec,p s/zh 2mgwq.*-wgrntric field

  Is it possible to have a zero electric field value between a negative and positil 6wx+qobf2a21ift:qu j .v66xhl5 l l7 uort0ve charge along the lixf+2ullq ovf1:656twhb.t x0ajul 7ql26irone joining the two charges?

  Is it possible to have a zero electric field value between two 90v pbh9brwa-b46pnwq 4 u+ofpositive charges along the line joining the two charges?pqa+vp9w 0-b94 nur6f4wohb b

  Electric field lines near psitive poib73ye i,c5wkc9m 2f dxae+p2 int charges

  The electric field shsa yb3h:. oz7 f l-o7q,avp.msown

  Can electric field lines intersect 2bexhb 93 ,dizin free space?

  A solid block of metal in electrostatic equix(v0 u 6dhla)zlibrium is placed in a uniform electric field. Give)0h6z x(uvd la a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sp i ag6c1/k ji1ysabso9*0n q2oeq5h f*here of equal diameters are each given ty*sji/a 9gb5fca1 o6ei2 sok*1nqq h0he same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on ziv0lk y305hw h f2dz;6zkc(ua wooden table in a region where a uniform electric field is directed straight upward. What can be said concerning the charge on the block's top surf305 vf;i2dz 0zch 6(zlwuykhk ace?

  If a conductor is in electrostatic equilibrium near d8d *z-ctfuilok,*7q an electric charge

  A positive point charge is enclosed in a holj(wo7 15w.mdkayj7 b clow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric fm 1(yac5 7.j kjwdo7bwield at a point directly above the hollow sphere has

State three properties of conductors in static equilibrium.-+7-hbhucvdupb 3 y9x

State Gauss's law.

  The charge carried by one elexzj06x,m9hgh0rm sz 5ctron 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 charg9n b*gkm p4tt6v.e sp6e of +2.00 mC. How many more protons than electrons does this piece of plastic ha.gnp6stpvk em b*9t46ve?

  What is the charge on 1 kg of protov6im)ct pdo1 -ns?

  An atomic nucleus has a z l:keiix ix4-3jm4-g 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 vs// e5etq i/xi ,.t1t vqz)ncjalues of 2.0 and -4.0 mC, respectively. What is the magnitude of thx)ie n / /jqt5t,zie.vqt1sc/e electric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force between thev hqjrr15-jy*0nm )vtm is 1.0 N. What is the magnitude of)nt qj5 1-hrv*m0 jryv the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are bxx nm0rw g*.lkt6+f 6rny81a they?

  The force between a u /ly dw*:-fg 8mq2idv$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experiencjw uon9hqr)4 . 9,wfhde a 1.0-N force. If they are moved to a new separation of 8.0 cm, what w ho9hdf 4w,n.ur)9j qis the electric force between them?

  Three identical point charges of 2.0 mC are pld7:fjrx,aqd/ 6ywwbi +60 aazdp b l3koy0x38aced 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 1000q/83xloypkj 0 d,dwar7ix+y zafbb6ad:3w6 cm mark. What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges aeo4ux -qkp0ke 88n8e nre placed on the 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 electrostatic force w880pu-okkeq xn e4e 8nhich acts on the charge at the origin?

  Three point charges are located at the followingw;;1sx8 ezgpn 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 3.001p w ;enzg8;xs-mC charge?

  A point charge of +Q is placed at the center t83okmf( .wbewf7jl8 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 the magnitude of the forc(wew3k8t78. ml j ofbfe 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); Q2r0pua 1c)vy .kal1:aj,7t jns = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the mays ja. vltj1 ,pk01c)7aanr: ugnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 . r:rqw7lo3c4 mkzbn2 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the obqrw k. 4l: rm327nczdirection of the net force on the 5.0 nC charge?

  Three identical charges of,9jd9mq. z)h og qjzx2 3.0 mC are placed at the vertices of an equilateral triahgmq.zx)o 29z dj9q ,jngle which measures 30 cm 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 are septfij6m4(8; ;mn 6zmvw+ bvobharated by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge o v ;4m+mjvwmtnb6o6 8( hfbz;if -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. Whemqjg)0idt/z * re on the x-axis can a third charge be placed so the net force on it is z/0qjmd)tg iz* ero?

  Charge +2q is placed a if )cw wdomcq8s ::3g g4r4nhj7d,(tat the origin and charge -q is placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zero?4,)tw:f:dcsiogq4 mjdc8(h gn a w3r7

  A copper penny has a mass of 3.0 g. A to xucbi7i(be170vga:6 ;p6 zj msgzaf-tal 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 9ikadx1wpc7: by the attraction of a fixedaidcxwk1: 7 9p proton some distance above it. How far above the electron is the proton?

  Two 0.20-g metal spheres are hung from a common pim-tm1e d9 gkey8og* 1oint by nonconducting threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until tgegt1i8 my*mkd-9eo1 he angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +4qrwr2,4t9jg m 0e. What is the magnitude of the electric field at a distance of 1.0 m from the nuw gtrrqm4,j9 2cleus?

  What are the magnitude and direction of the electr+dflj/zxtnz g-9bay-qr; d;1 a r sf52ic field at a distance of 1.50 m fro9f lxd1 q5rzsg- n-+yrfjt;za/bda;2m a 50.0-nC charge?

  A 5.0-C charge is 10 m from a small test charge. What 4cbo- e nbh*v :lw/wqv8o rz1(is the magnitude of the electric field at the location of thb1q:ov v (zw 8rec4*-lh /obwne test charge?

  A 5.0-C charge is 10 m from a small test charge. What is tha*l/df *aacx (epl98 je*k)ene direction of the e8eca*k9daplx )e * faln*j /e(lectric field?

  A 5.0-C charge is 10 m from a small test skml .g-8kdy *charge. What is the magnitude of the force experienced by a 1.0 nC charge placed 8*m kds.ylk g-at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated g;yz9:t4xg 49gtv k6 b,pkmz kby a distance of 4.0 m. What is the electric field atkgz4g 9vtgk9zbpm,y 6;kxt: 4 a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4wayv68xm(pjus8;o n a8 -,oup.0 mC charge is placed at the 5paxyu ov pu-a6 s8(jw8no; 8,m0 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 and a -4.0 mC charg pn yd.g09:duge is placed at the 5n0 : .pyd9udgg0 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 placed at x = 0 and x = 0.20 m.eva digf/uo:xvp5. 6 , What is the me/ giu ov,5:f.6xpav dagnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.50 m.xcdp1ksh2ak3mh;)+ )paupj / The last corner is occupied by a -3.0 mC charge. Find the electric field at the cenx)p hjcumk1ds pak+/ 2;p3ha)ter of the square.

  Consider a square wh k/d5h.9zlrvrn9 7j vuich is 1.0 m on a side. Charges are placed at the corners of the square as fod u/kvrl 5j .rvh9n9z7llows: +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 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 in a 0jblthh5u1b p-f/yi.igur) 9uniform electric field. What is t0/. )pibgfjuhuh 9-y5tlbr1 ihe magnitude of this electric field?

  A particle with a charge of 4.0 m6hpfg.x- :n onC 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 8xa kxin2h651w:v3ai zp5znv mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What chx5 :nxk83vi5p1aa2nz 6iwvzh arge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge kb/p(,fd2+5 b ky unlkof -2.00 nC. The ball is placed inside a uniform electric n(b+dlfy pu 2k5/kbk,field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius9d px)/fzy-f j :swh 3wt0c-gu 10 cm carries a charge of +2.0 mC. What is the magnitude of the electric field 5.0 cm from the sphere's sug)xy/f 9d:hjw0 3upzt -sfw c-rface?

  A metal sphere of radius 2.02p*q,ui sqj.d cm carries a charge of 3.0 mC. What is the electric field 6.0 cm from the center of the sph,j. dius*2 pqqere?