State the law of conservation of electric charge.nm*71 jv+)4eyc :f bogkys n8k

  Is it possible for two neg *mxsks.yj6 :l6(s vb07kxxrq ative charges to attract each other?

  Is it possible for a positive and a negati*jgmv)d bm .0 :oo-uifve charge to attract each other?

  A glass rod is rubbed with a piece of silki 4v0 /qm:qpya. During the process the glass rod acquires a positive charge p myqiv/0 :4aqand the silk

  A proton carries a

  The model of the atom showhf7e9 wf3cdy v1/ utp ; cn:j;z4swbi:s a

  A neutral atom always ha 01l;; ga8/s:jecg /mvne(jj,kdoqdi s

  An atom has more electrons than*f 0m4ow:ivnh protons. The atom is

  Materials in which the electrons are bound very 45;p)obu4 m9zhgn+za -glkac tightly to the nuclei are referred t noz kl4+5zm4aa9hc ;) b-ugpgo as

  Materials in which thurxuso 6 dqn5,g569wbe electrons are bound very loosely to the nuclei and can move about freely withix56 o sub56u9qndrw,g n the material are referred to as

  A negatively charged rod is brought near one end ot1/-cl.sq3 gctb0z/t ;s q afwf an uncharged metal bar. The end of the metal bar farthest from the 3w1tgb/s. cf 0c -aq;tl/sqztcharged rod will be charged

  Sphere A carries a net positive charge, vg1yg1mp-(.nsy o hr, and sphere B is neutral. They are placed near each other on an insulated ta1(ym.1, hgrp-o g snvyble. Sphere B is briefly touched with a wire that is grounded. Which statement is correct?

  How can a negatively charged+wtfiu,.*xk p rod charge an electroscope positively?

  An originally neutral electroscope is briefly touh*v1iwc)ly 9t ched with a positively charged glass rod*yh 9v1wlcti). The electroscope

  An originally neutral electroscope ij7ebf1;u7 m ahv; h7y+dl c9yos grounded briefly while a positively charged glass rod is held near it. After the 7; f a;hb1+muvl hcy7e7od9j yglass rod is removed, the electroscope

  A positive object touches a neutral electroscope,d 1/knp/7 pqky a13yhgl. :mtw and the leaves separate. Then a negative object is brought near the electroscope, but does not touch it. Whahy y1mp/qg:kp.3 1 nl7/wktda t happens to the leaves?

  A large negatively charged obnb.n6jbg+t,xsy/k g -c x0qe lv7 f7d6ject 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 pat7fj/ln k gc7+xxgbt, ys6dqb- 60ne.vh 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 Coulom:wu ye/3+k tqbb constant $k$, which appears in Coulomb's law?

  Two charged objects ar/:j p +o,nbmiq(dy a 0ilbx a(/vn.z0qe separated by a distance d. The first charge is larger in magnitude than0bapy ajmvn0 l./iz+q bon( i (xq/d,: the second charge.

  Sphere A carries a net charge w0bwcnek8d03 5fr0yv and sphere B is neutral. They are placed near each other on an insulated table. Which statement best describes the electrostatic fkn5w 0cerd 3b0y0vw 8force between them?

  Two charged objects 5i40(mcz 3wid cilas4 attract each other with a certain force. If the charges on both objects are doubled with no change ilmzi5w c4i4cis0(da3 n separation, the force between them

  Two charges are separated by a distance d an+ :nhcz ogaw5g4 bu(j4d exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what are 4gju z a h5wc(:b+ogn4the new mutual forces?

  Two charged objects attract each other with a force F. What happens to the f h;489hfl-u8 jslgpx jorce between them if o4hf9j us8gxj -;llph8ne 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 equal to

  An electron and a proton are separated by a distance of 1.0 l9 z3*lg2onnygsy+v6 m. What happens to the magnitudey 6zg*yn93s l+o2vngl of 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 oi :tklng*g;4n f 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placed next tkig n*g; nt:l4o the proton?

  An electron and a proton are separalb4b50i( geqe m5v -ux-ls3ented by a distance of 1.0 m. What happens to the size of the force on the proton if the elec(4exim5b-ulel 5nqse- gb 0v3 tron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at the center of a square. When a secoqpp))+nhak jx f6zz8:nd point charge of -a6xnp8f zz)p )jh+: kqQ 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 magnitude of the net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q i(a3w,;cylq m as placed at the centroid of an equilateral triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electros,3 qlm;( wyaactatic 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 n5 i47mgk/0uyqgoxu;m :va6 nkot a vector?

  At twice the distance from a point charge, the strength of the ele -ep.h*wdzln .ctric field

  Is it possible to have a zn; (gv/dyewm4 8cs) aeero electric field value between a negative and positive cy8wse4 g cnvea;) m/d(harge along the line joining the two charges?

  Is it possible to have a zero electric field value between two positive xydz , gykg/qe4:8*yhcharges alo y*y:xyq ,48/dzehggkng the line joining the two charges?

  Electric field lines near psitive point chargpkm (wqo+,mv -es

  The electric field sem zg,n dyzim dqla/j 70du477.kuk )2hown

  Can electric field lines intersect in free spacgh3k0z9 s4dsk6xtt s(e?

  A solid block of metal in elel d7,, ztv8akivnn 1 (-nkqbrov7nd -+ctrostatic equilibrium is placed in a uniform electric fielivbo r-nnd,-l7td ,zn8nv (1qkv7ka+d. Give a statement concerning the electric field in the block's interior.

  If a solid metal sphere and a hollow metal sphgiy(lc8pn1 0 rere of equal diameters are each given the same charge, the electric field (E) midway between the center and the surrcgi0n(y8p 1lface is

  A cubic block of aluminum rests on a wooden table in a region where a unimw kw+o dd((0 ay)6ldiform electric field is(d0l)odyd+m wi(6w ak directed straight upward. What can be said concerning the charge on the block's top surface?

  If a conductor is in electrostaee) a (wk bdw(j(83qbart o/h3tic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metamu)k/ ,p9lpi wse9vu4-biwn0 llic sphere that is grounded. /w vk)u4,ipw bm9pni09-lsueAs compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in statfoj:)rgxo,e u(-: f vxic equilibrium.

State Gauss's law.

  The charge carried by one electron2.sp m 6/chco d:fkkf0 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 than el* omsql j(sfwg:dg.yh/m2 ;0lectrons does thidlmj*0sg(ylqfm:h go2s ;/w . s piece of plastic have?

  What is the charge on 1 kg of protoh9m u1xyiw )+:6 mp-2dvn efcwns?

  An atomic nucleus has a-i6ohi qz* tn +om)vh2 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, wd+q wbap,gc)ol ge6 - 59kau9/t1vixhave charge values of 2.0 and -4.0 mC, respeb,d xgv) 6oeq99/w twgaikcp1+a-u5l ctively. 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 betweek2.+zm 0l yyw2pg 0qshn them is 1.0 N. What is the magnitude of tk2sz+yy 2g.mwqh0 lp 0he second charge?

  Two 1.0-C charges have a force between them of 1.0 N. Howo6yxzp)6wir .lft1v 4 far apart are they?

  The force between a 7;vxc c12d-rvcffr1b $30 \; mC$ 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 force. If they a cwerbm)q43d7re moved to a new separation of 8.0 cm, what is the electric force r3w)mb eqdc 47between them?

  Three identical point charges of 2.0 mC are placed on dro ishvd ..x9/,3am uthe x-axis. The first charge is at the origin, the second to the right at x = 3,sado.i v.r u/9 dmhx50 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 the x-axis. A charge of +2.0 h f6kd 6ra+k)vlx cwhjy-* x2 2f)(joepb3g7gmC is placed at the origin, -2.0 m C to the right at x = 506 dgrf26 jc)h*pvo7whjy)-2 e+bxkk(3gf lxa 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 wmj,:ms l-psh60w+enxyqc82;3 9 d 3aw iufyt following positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.pwts6w8yn ;- 3sfyx w+ jum:q,m2ehc30adl i 900 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 the center of a square, and a sb- g jw6i+*ofgecond point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic* wg 6gbf+ji-o 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+idrk f)1onr ef7 ;4cy.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 4roy; fkif1n+7r )cde0). What is the magnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 26+k:f1ej 2bb0 mb zre7)djtmvmyv8r0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0).zbe t mm0+ vje7r:fr6bm1k)yv b2jd28 What is the direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC at7 -zgv(iom9are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which aci79z( ova- mgtts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At 9,oh d ,/yo/bypcb or,what point, on a line between the,oyyd,h/p/9 rco ob ,b 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 t3 5yixh 344n1yyu7jco* vtmixhe origin and a +9.0-C charge is at x = 4.0 m. Where on the x-axis can a third chayu7 ixy5 o3441ijh 3n cxy*mtvrge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is placed at x =6,dls+ h r1p0ky:cpnm 2a. Where can a ts : m61ckdrpn ylph,0+hird positive charge +q be placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g.0brfkf 8sb*g2 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 attraction of a fixil96tr) +8bvoox tpc 9yz-9yced proton some distance above it. How far above the electr 9cocbltyvz9-xr98o)+ity p 6on is the proton?

  Two 0.20-g metal spheres are hung from a c rw8pm4n6-3 jg:wiokzommon point by nonconducting threads which are 3zwp -m4w 68o3gjkrin: 0 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 charge of +40e. What is the magnitude of t imfq.k95unck,1 d9 gohe electric field at a distance of 1.0 m , 51mk 9.odcnkq9fguifrom the nucleus?

  What are the magnitude and directiod9e 6-2yzmgjm ,qd- yh t*vbt;n of the electric field at a distance of 1.50 m from a 50.0-nC ch t, gh;yd* te q9ym-b2dzmjv-6arge?

  A 5.0-C charge is 10 m frozb mo:; pmw8y2j-bw8f,xwdri98 cee+ sd2nq0m a small test charge. What is the magnitude of the eldby, z8i9j0822npxqw ew+fwsm :-8rbc;om edectric field at the location of the test charge?

  A 5.0-C charge is 10 mxqp3w 1go-tq, from a small test charge. What is the direction of the electric fi p3qqg 1xt-ow,eld?

  A 5.0-C charge is 10 m from a small test i yohl1:c .:o4xyt.kk charge. What is the magnitude of the fyk.lx:ctooi h :.14ykorce experienced by a 1.0 nC charge placed at the location of the test charge?

  Two point charges each have a value of 3.0 C a(1vp40i xjiv q6 woa;e qp-zk3nd are separated by a distance of 4.0 m. What is the electric fiea(; 164p kqw3zv v0- jioexqpild at a point midway between the two charges?

  A 5.0-mC charge is p8/ox 82)tta9y zq 1iuqwpqft- laced at the 0 cm mark of a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field aat88/ q qu)wot y19fq-z 2xitpt the 30 cm mark?

  A 5.0-mC charge is placuwehev58 c28z ed at the 0 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 el8e25 cwu8vze hectric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placehm,bu 321jo e6quxd7ed at x = 0 and x = 0.20 m. What is the1oj37b2ehu xmqu, 6de magnitude of the electric field at the point midway between them?

  Three 3.0 mC chargesqzhy0 lqc36 .xnf)y9p are at the three corners of a square of side 0.50 m. The last corner is occupyy3p.lq cxf)0n9zq 6 hied 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 side. Charges are placed at 4hvipqjd9o,)6owqsnm m3:; y jh 5ex+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 at (0, 1). What is the magnitude of e)4yxpshmiq:j o3 +qw 69 h 5j;,dmovnthe 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 un260e u*dhfr5oi51 bxun -t vywiform electric field. What is the magnitude od5ne2-y fiwo vru0hx1* tb6u5f this electric field?

  A particle with a ch- x;kn b/ p-2xpbum;r4zwcxo +8k8gtparge 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 electric field of 6000 N/C poirs)shp3q:(u +b9au uv(d9 uz ontvrd u:oqsh9)3p u 9b((a+szuu ing downward. What charge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge oxa(88f0d7s4 o 2bicb flxb7n kf -2.00 nC. The ball is placed inside a uniform electric field, and is suspended agf l847fdsx bobx08ba7n i(ck 2ainst the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carrie9w yha5mek/7as a charge of +2.0 mC. What is the magnitude of the electric fiela9w5 ah7ek/ymd 5.0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Whatk;4s 6kjhj1obt-w* bz is the electric field 6.0 cm from the center of the spherekwt;bj* s- j4bokz1h6?