C2 in terms of C1 when a series and a parallel combination store equal energy

1. A.
   $\frac{3C_1 n_1}{n_2}$
2. B.
   $\frac{9n_2}{n_1}C_1$
3. C.
   $\frac{3n_2}{n_1}C_1$
4. D.
   $\frac{9C_1 n_1}{n_2}$

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1. A.
   $\frac{C_{1}}{5}$
2. B.
   $\frac{8}{5}C_{1}$
3. C.
   $\ \frac{64}{5}C_{1}$
4. D.
   $\frac{C_{1}}{40}$

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