QJEEM22Phc28e: JEE Main 2022 Physics - Class 12 JEEM22Phc28e Solution: Two parallel plate capacitors of capacity C and 3C are…

Two parallel plate capacitors of capacity C and 3C are connected in parallel combination and charged to a potential difference 18 V. The battery is then disconnected and the space between the plates of the capacitor of capacity C is completely filled with a material of dielectric constant 9. The final potential difference across the combination of capacitors will be ___________ V.