Chapter 16 - Electric Potential, Energy, and Capacitance - Learning Path Questions and Exercises - Conceptual Questions - Page 591: 23

If the capacitances are $C_{1}$ and $C_{2}$, a) Maximum equivalent capacitance is attained when they are in parallel, i.e. $C_{1}+C_{2}$. b) Minimum capacitance is attained when they are in series, i.e. $\frac{C_{1}C_{2}}{C_{1}+C_{2}}$.

If the capacitances are $C_{1}$ and $C_{2}$, a) Maximum equivalent capacitance is attained when they are in parallel, i.e. $C_{1}+C_{2}$. b) Minimum capacitance is attained when they are in series, i.e. $\frac{C_{1}C_{2}}{C_{1}+C_{2}}$.