If the capacitors in the previous question are joined in parallel… - Vidyadip

MCQ

If the capacitors in the previous question are joined in parallel, the capacitance and the breakdown voltage of the combination will be:

A
$2C$ and $2V$
B
$C$ and $2V$
✓
$2C$ and $V$
D
$C$ and $V$

✓

Answer

Correct option: C.

$2C$ and $V$

In a parallel combination of capacitors, the potential difference across the capacitors remain the same, as the right$-$hand$-$side plates and the left$-$hand$-$side plates of both the capacitors are connected to the same terminals of the battery. Therefore, the potential remains the same, that is, $V.$
For the parallel combination of capacitors, the capacitance is given by
$C_{e q}=C_1+C_2$
Here,
$C_1=C_2=C$
$\therefore C_{e q}=2 C$

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