05.20: A portable radio that is playing is placed inside a screen cage as s d xnv;hy1:8x gxo*2 u(tpu.qjhown. When inside otuuxnd21:;j.gxqp *v(xy h8 the cage the radio stops playing because

  94.21: Which of the following statements ab wnp0sy8hx6m:b8vrv kg5f+ 9eout solid conductors in electrostatics arevvewp0nxr sb8m:5+96y8 gfhk true?
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 conducting sphere of radius R has positive charge + a0i9jkhe*or/ Q. Which graph best depicts the electric potential as a function of r, the distance from ti9 h o0a*kjer/he center of the sphere?

  96.36: An isolated conducting sphere of radius R has positive charge + Q. Whi-ibx(2f r :kywhm8y*tch graph best depicts the electric field as a fyfh(tb2x8r-ywi *:km unction of r, the distance from the center of the sphere?

  96.21: Two isolated conducting spheres (S cpsk m(ie ;3 9opsizme+b*7k21 of radius 0.030 m and initial charge + 6.0 nC and S2 of radius 0.040 m and initial charge + 2.0 nC)c p(*2pbe ; miekkomsi z7+39s are connected by a conducting wire. Charge will flow in the wire until:

  17.46 Two copper spheres X and Y, with different rauae*8sk3*fx0w jk oj;dii ($R_x>R_y$) 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 tn 4xcyok;f4nh ru,-m-wo identical positive charges located at points 4 and 6 on the posix,4;ocn -hyru4nk- mftive x axis. Which of the following graphs best represent the electrical potential along the axis?

  03.50: A solid uncharg0y:sm993 *w3m(.quyz p fna(j cszq oted conducting sphere 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.3 sza cn t.m:(y(*u9s0jomzp3 wq fyq9 What is the magnitude of the electric field at the position r = 4a from the center of the spheres as marked in the figure by P?

  11.46: A hollow conducting spheres/r) 1b yll7/s.hpa9oybrc6e in static equilibrium is isolated in deep space with a net excess charge +Q on it. What is the electric potential (assuming V(r → ∞) = 0 ) at the position labeled P shown in the interior osbh 9 )pclo1.r7a yesy/6 blr/f 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 of r5)xplte vgs(7 mjh8 3tadius 3a contains a hollowed spherical region of radius a. A point charge +Q is placed at the common sjxghtv)8epm 5 7l( t3center 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 yu 5nygnp ed 2ov8bt ;+h50gs,conducting shell has inner radius 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 ord og8 ,u2sbydt+n5ey5h0;nvp ger for 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 rji;m2-1ss6z 8f nab kcharge +Q placed on it. Which of the following is the correct relationship for the electric potential at the points labeled A, B, and C? Pib6fmr-s2an8 ;1skjz oint A is at the center of the sphere, 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 sphericl g s 73xri:b-0t4wz .vpwp9raal conductor has charge +Q and radius R. It is surrounded 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 sphere0t.:vix3g w9z4rrp7sp - awbls approaches infinity. Point A is at the center of 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 conducting shells are in free spachf udq,07ma1nu.8rh ie. The outer shell has inner radius 2a and outer radius 3a. Thehi dn10.rm7a8h uu,qf 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 att//ipaazexzj42, a 1 mrempt to describe physical phenomena. Which one of the following statements is correctzz2 //prxa 1eiaj, m4a?