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An electrical technician requires a capa...

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

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