using System; using L=Science.Physics.GeneralPhysics; namespace Serway.Chapter32 { /// /// Example06: "Wireless" Battery Charger /// An electric toothbrush has a base designed to hold the /// toothbrush handle when not in use. As shown in /// Figure 32.15a, the handle has a cylindrical hole that /// fits loosely over a matching cylinder on the base. /// When the handle is placed on the base, a changing /// current in a solenoid inside the base cylinder induces /// a current in a coil inside the handle. This induced /// current charges the battery in the handle. /// We can model the base as a solenoid of length l with N_B /// (Fig. 32.15b), carrying a current I, and having /// a cross-sectional area A. The handle coil contains /// NH turns and completely surrounds the base coil. /// Find the mutual inductance of the system. /// public class Example06 { public Example06() { } private string result; public string Result { get{return result;} } public void Compute() { result = "Read the book!"; } } }