Question

A capacitance of $2 \, \mu F$ is required in an electrical circuit across a potential difference of $1.0\, kV$. A large number of $1 \, \mu F$ capacitors are available which can withstand a potential difference of not more than $300\, V$. The minimum number of capacitors required to achieve this is :

• A. 2
• B. 16
• C. 24
• D. 32

Answer 1

Answer: (D)

32

Answer 2

Following arrangement will do the needful :
$8$ capacitors of $1\,\mu F$ in parallel with four such branches in series.