Chapter 23, Problem 20P

GO Flux and conducting shells. A charged particle is held at the center of two concentric conducting spherical sheik Figure 23-39a shows a cross section. Figure 23-39b gives the net flux Φ through a Gaussian sphere centered on the particle, as a function of the radius r of the sphere. The scale of the vertical axis is set by Φ_s = 5.0 × 10⁵ N · m²/C. What are (a) the charge of the central particle and the net charges of (b) shell A and (c) shell B?

Figure 23-39 Problem 20.