An electrical technician requires a capacitance of `2muF` in a circuit across a potential difference of `1kV`. A large number of `1muF`capacitors are available to him each of which can withstand a potential difference of not more than 400V. Suggest a possible arrangement that requires the minimum number of capacitors.

Explanation

Eighteen `1muF` capacitors arranged in 6 parallel rows, each row consisting of 3 capacitors in series.