Two capacitors of 2 μF and 4 μF capacitance are connected in series across a 30 V dc battery. After the capacitors have been charged, the voltage across them will be

Two capacitors of 2 μF and 4 μF capacitance are connected in series across a 30 V dc battery. After the capacitors have been charged, the voltage across them will be_____.

(a) 15 V each
(b) 10 V and 20 V respectively
(c) 20 V and 10 V respectively
(d) 30 V each

Ans. (c) 20 V and 10 V respectively