05.20: A portable radio that is playing is placed insi1 jp fuj7n.dmg lz85 +nupti cc)z0o.,de a screen cage as shown. When inside the cage the radio stops 8p5ud0ljcngjozu,. nm1 c t f7z+)p .iplaying because

  94.21: Which of the following statements about solid conductors in electrost7a)g7j ue zk.zm1s9ttatics are true? z9 muts1 gka7.)tj e7z
I. The electric field inside the conductor is always zero.
II. The electric potential inside the conductor is always zero.
III. Any net charge is on the surface.

  95.07: An isolated con,m 9 x 6n4iklfcfvc3k+ducting sphere of radius R has positive charge + Q. Which graph best depicts the electric potential as a function of r, t9 +xikk c l46cvn,fm3fhe distance from the center of the sphere?

  96.36: An isolated conducting sphere of radius R has positive charge +dv4x 8y(i..x,sas rqefl(j4ec- sd -k Q. Which graph best depicts the electric field as a function of r, the distance from the center of the sphe4(,javi(q-. kxdy c4d.- xf r s8eselsre?

  96.21: Two isolated conductlcsp7+f 0* bil6+af uc34g w:rm(fr *u v;lgvoing spheres (S1 of radius 0.030 m and initial charge + 6.0 nC and S2 o6 l r:vug4* (fgimlvrc70f f;sbpu3+ac +wlo*f radius 0.040 m and initial charge + 2.0 nC) are connected by a conducting wire. Charge will flow in the wire until:

  17.46 Two copper spheres X and Y, with dizrfdji0e, ct21;xmr0fferent radii ($R_x>R_y$) and equal excess charge +Q, are placed apart from each other. A scientist using insulating gloves connects the spheres with a copper wire. Which one of the following choices best describes what happens after the connection is made?

  03.43: The diagram shows two identical positive chargez*ae5v*egx .d s located at points 4 and 6 on the positive x axis. Which of the following graphs b d*az5gee*.v xest represent the electrical potential along the axis?

  03.50: A solid uncharged conducting sp,6 phedecid*d(hf0g -7c/zns + cezfxyk** g .here has radius 3a contains a hollowed spherical region of radius 2a. A point charge +Q is placed at a position a distance a from the common center of the spheres. What is the magnitude of the electric field at the position r = 4a from thezz7/hcfc dxcigp edk y -.6*esg*d0en+*h ,f( center of the spheres as marked in the figure by P?

  11.46: A hollow conducting sphere in svlth;3 6qg ( 0ok/ ajc2ecz)e9xqow,vtatic equilibrium is isolated in deep space with a net excess charge +Q on it. What is the electrizv2,(l9 /gho;c c0xowk)j6q 3vqt eaec potential (assuming V(r → ∞) = 0 ) at the position labeled P shown in the interior of the figure? The sphere has radius R=3a and the point of interest is at a location r=2a from the center of the sphere at an angle of $60^{\circ}$with respect to the +x-axis.

  02.49: A solid, uncharged conducting sphere xhljmf 6v- a3dae3(4dof radius 3a contains a hollowed spherical region of radius a. A point charge +Q is placed at the common ae-h3d3md 4a 6(xvfljcenter of the spheres. Taking V = 0 as r → ∞ , the potential at position r =2 a from the center of the spheres is:

  04.50: A solid spherical conducting shell has inner radrnqf7 -gin-qphzp ku1nu*2j23 -1hu kius a and outer radius 2a. At the center of the shell is located a point charge +Q. What must the excess charge of the shell be in order for nfq 2pgk1-2i*p-r71nzuj nukhqu3h-the charge density on the inner and outer surfaces of the shell to be exactly equal?

  05.45: A spherical conducting shell has a net charge +Q placed on it. Whitbdxuhc*- ac3(b859xrv:q / r,ih ztech of the following is the correct relationship for the electric potential at the points labeled A, B, and C? Point A is at the center of the spher9( i* /quaz85v,txbhecxdrr-b 3tc:he, point B is at the surface of the shell, a distance R from point A, and point C is a distance R from point B outside the sphere. As r goes to infinity, V = 0.

  07.42: A solid spherical conductor has charge +Q and radius R. It is surrounj6wigf3r9h21nt1zmpy y u .m4ded by a solid spherical shell with charge − Q, inner radius 2R, and outer radius 3R. Which of the following statements is true for the labeled points in the diagram? Assume these objects are isolated in space and that the electric potential is zero as the distance from the spheres approaches infinity. Point A is at the center ofymr3fyu j1 gn2zip .4w96t hm1 the inner sphere, Point B is located atr= R + δ, Point D islocated atr =3R+ δand Point C is located at r =2R − δwhere δ is an infinitesimal amount and all distances are from the center of the inner sphere.

  15.48: Two concentric charged condms(uzl*,6ydvrzo mn9aazxc. g0: 3 h7ucting shells are in free space. The outer shell has inner radiuszvhsm3 *xo0y9. d gm cuz,ar:nl6a7 z( 2a and outer radius 3a. The inner shell has radius a. It is known that the electric potential at $r=3a$ is $V_{3a}=\frac{kQ}{3a}$ . If the electric potential $V_a$ at $r=a$ is 0 volts, what is the charge on the inner spherical shell
$Q_in$?

  14.35: There are several statements presented below that attemp r +bd r5sfpv az3ev -:2m;ksy-az5nn6t to describe phys-kv pnfn5;+ brz -ym dvssea653zr2:a ical phenomena. Which one of the following statements is correct?