List of top Physics Questions on Capacitors asked in GAT-B

Two parallel plate capacitors each of 15 µF capacity are connected in series. The space between the plates of one capacitor is filled with a dielectric material of dielectric constant \( K = 2 \). The equivalent capacitance of the system will be:
What is the net capacitance of the circuit given below? (C1 = 4$\mu$F, C2 = 8$\mu$F in series, C3 = 6$\mu$F in parallel)