## Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

(a) $C_{eq} = N\times C$ (b) $C_{eq} = \frac{C}{N}$
(a) We can find the equivalent capacitance $C_{eq}$: $C_{eq} = C + C +...+ C~~~$ (Note that $C$ is added $N$ times) $C_{eq} = N\times C$ (b) We can find the equivalent capacitance $C_{eq}$: $\frac{1}{C_{eq}} = \frac{1}{C} + \frac{1}{C} +...+ \frac{1}{C}~~~$ (Note that $\frac{1}{C}$ is added $N$ times) $\frac{1}{C_{eq}} = \frac{N}{C}$ $C_{eq} = \frac{C}{N}$