You are given 32 condensers of 4 µf capacitance each. How do you connect all of them so that the effective capacitance becomes 8 µf?

4 condensers in series and 8 such groups in parallel 2 condensers in series and 16 such groups in parallel 8 condensers in series and 4 such groups in parallel All of them in series

4 condensers in series and 8 such groups in parallel