05.20: A portable radio that is playing is placed inside a scrsf 4lp5iv1 iw2een cage as shown. When inside the cage the radio stops playing becauiivs5412fwp lse

  94.21: Which of the following statements aszm 9/4nl p1mf5txce /bout solid conductors in electrostatics ac 1ztf5 lm9x4snem //pre 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 b)k6ezy-.ggj charge + Q. Which graph best depicts the ele6.)kz jb ygeg-ctric potential as a function of r, the distance from the center of the sphere?

  96.36: An isolated conducting sphere of radius R7 nu4; ccnpdo5 has positive charge + Q. Which graph best depicts 5p7udonc; 4c nthe electric field as a function of r, the distance from the center of the sphere?

  96.21: Two isolated conducting spheres (S1 of radius 0.030 m and initial chu)1qpw-zgd r j1 3drl.arge + 6.0 nC and S2 of radius 0.040 m and initial charge + 2.0 nC) are connected by a conducting wire. Charge will flow in the wire unti u 3) .-1rwrjd1pgdzlql:

  17.46 Two copper spheres X and Y, with dii z f:zzay,rc4h*:e;ffferent 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.naysu9c. ynmcj w*(11esh 8m two identical positive charges located at points 4 and 6 on the positive x axis. Which of the w 91usms jc(8y*aynmnec ..1hfollowing graphs best represent the electrical potential along the axis?

  03.50: A solid uncharged con a0)da9.smg8y* c:wdqnyt9ks ducting 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. What is the magnitude of thet9a nq dsymc. * 98:)y0agksdw 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 1+8wwy vjc;tc sphere in static equilibrium is isolated in deep s+v y cw1jw;c8tpace 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 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 of r s o-bq;lt/k*badius 3a contains a hollowed spherical region of radius a. A point charge +Q is placed at the common center of the spheres. Taking V = 0 as r → ∞ , the potential at position -b*qto/kl b s;r =2 a from the center of the spheres is:

  04.50: A solid spherical conducting shel3v r s h-v*x;ceg5;xitd2kff 2l 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 ;v xc*rxi2ehdfsv kft ;52-g3order for the charge density on the inner and outer surfaces of the shell to be exactly equal?

  05.45: A spherical con3f 47eink.be fducting shell has a net charge +Q placed on it. Which 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 sphere, point B is at the surface of the keief3 74nfb.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 an3xtt v1+e*amr)jht u )p1z9-x m of-mqd 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 spheres 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 inf +)1eh)vx*mut pm frzaj91t3mo-q -xtinitesimal amount and all distances are from the center of the inner sphere.

  15.48: Two concentric charged conducting shells a-di rk 6 p4n2,m9/hgurvk7 gnire in free space. The outer shell has inner radius 2a an26kuh 4km7 r, v9r pingd-n/gid 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 af:5d tt.q,geqfz6x .wttempt to describe physical phenomg,zwf ttq5e..:dq6 f xena. Which one of the following statements is correct?