Calculate the capacitance of 6uF and 12uF are connected in series with a battery. The voltage across the 6uF capacitor is 2V, compute total battery voltage.
The series capacitance is given as
Thus, the total resistance across the circuit is;
The charge across a capacitor is
?
Thus, charge across 6 ?F capacitor is
Since, the combination is a series combination, the charge remains the same across entire circuit.
Thus, the total voltage of the battery is