Chapter 2.4, Problem 2.36P

(a))

To determine

The energy configuration from the equation $W=\frac{{\epsilon }_0}{2}{\displaystyle \int E^{2}d\tau }$ .

(b))

To determine

The energy of the configuration from the equation $W=W_1+W_2+{\epsilon }_0{\displaystyle \int E_1\cdot E_{2}d\tau }$ .