The configuration in Example 5.17 is given again. Using the method shown, calculate and plot the potential outside the stack. Hint: Outside the stack the term containing rk must be zero so that the potential decreases to zero at infinity, but the term containing r-k must be retained.
Example 5.17
An electrostatic precipitator is a device designed to collect both positive and negative charged ash in the stack of a power plant. The stack is high and is built as shown in Figure 5.32a. The central conductor is in the form of a mesh to allow particles to move around. With the dimensions and potentials as given, calculate the potential distribution everywhere in the stack.
