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Capacitors — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsCapacitors1 Mark
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
$C_{eq} = C_1 + C_2$
Here,
$C_1 = C_2 = C$
$\therefore C_{eq} = 2C$

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