NEET-XII-Physics
31: Capacitors
- #2Two capacitors each having capacitance C and breakdown voltage V are joined in series. The capacitance and the breakdown voltage of the combination will be
(a) 2 C and 2 V
(b) C/2 and V/2
(c) 2 C and V/2
(d) C/2 and 2 V.digAnsr: dAns : (d) C/2 and 2V
Since the voltage gets added up when the capacitors are connected in series, the voltage of the combination is 2V.
Also, the capacitance of a series combination is given by
`` \frac{1}{{C}_{\,\mathrm{\,net\,}}}=\frac{1}{{C}_{1}}+\frac{1}{{C}_{2}}``
Here,
C​net​ = Net capacitance of the combination
C1 = C2 = C
∴ Cnet = `` \frac{C}{2}``
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