05.20: A portable radio that is playing is placed insif f6bepkzidvn91v g 7 x):y,wv,,lcp: de a screen cage as shown. When inside the cage the radio stops playing becadw:x lp,p :n7k6 9vvfcbzg),i, 1yfevuse

  94.21: Which of the following statements about solam6 )-8f(b 02 lg7ipshbjf fynid conductors in electrostatics are true? n(bpij)6fm70 sf lg-8h2fy ab
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 hasu8ltshj b 5f,u9 fw 4w cf3d1oxj6kx88 positive charge + Q. Which graph best depicts th8dx suw c4wtlf8kjfj1 of9b3 5u6x,8he electric potential as a function of r, the distance from the center of the sphere?

  96.36: An isolated conducting sphere of radius R has positiv xb7(n4aq;p sz -6p gt2wjyf(ue charge + Q. Which graph best depicts the electric field as a function of r, the distancez4 f((;b6spg xajut n- pwq27y from the center of the sphere?

  96.21: Two isolated conducting spheres (S1 of radius 0.030 m and initial chal ;xcfi i1m4 t, cqd0t beq)bf*yb+awt7el:46rge + 6.0 nC and S2 of +4 c6q) m atfx e7lt4ebtc1wib0lb;f*:di,q yradius 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 sphec2tso3b .z7+ikv/v/ xvtij2yres X and Y, with different 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 i)sz9;frf3 r-7itl 1plvu6tpb7 dz, vrdentical positive charges located at points 4 and 67usvtt73 f)brfr;pi rvzl z6-p,91 dl on the positive x axis. Which of the following graphs best represent the electrical potential along the axis?

  03.50: A solid uncharged conducting sphere has radius k(lh*iggyi/9 a54ie zl94pbt 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 the center of the spheres as mih 5i9 *al 9ygei4(l k/b4ptgzarked in the figure by P?

  11.46: A hollow conducting sphere in stayai2o0g geh/) tic 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 of the figure? The sphere has radius R=3a and the point of interest is at a location r=2a from the center o20og) ehi gay/f the sphere at an angle of $60^{\circ}$with respect to the +x-axis.

  02.49: A solid, uncharged conducting ppjd /7noy2xr6g+v uvh0 3vn:95 higvsphere of radius 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 x2 3vg5u0 rdn:/h vo 69yhg+jvpni pv7potential at position r =2 a from the center of the spheres is:

  04.50: A solid spherical conducting shell has inner radius a and outer radius dawm (8 yp n */hp7fq94kves1e2a. At the center of the shell is located a point c*qeepank h7my189 f4 (pw/dvsharge +Q. What must the excess charge of the shell be in order 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 charge +Q placed on i /nrmolm)3u-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 shell, a distance R from point A, and urm 3/ )minol-point C is a distance R from point B outside the sphere. As r goes to infinity, V = 0.

  07.42: A solid spherical cond3c3+mck9lju f*cqlws v,n, 2qg rj7/puctor 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 spheres approaches infinity. Point A is at the center of the inner sphere, Point B is located atr= R +9ccs2+pq klrgw3l ,v,* q/j uf3nj 7mc 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 space. The ouz *-d0:gtr : hh:oc5brwe6czc ter shell has inner radius 2a and outer radius 3a. The inner shell has radius a. It is known that the ezrc0 z:te cd-:h:cw5 obrh6g*lectric 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.k ldh /ql zo3f-.m3lt attempt to describe physical phenomena. Which.zh- /q3td.3lfmoll k one of the following statements is correct?