JEE Main & Advanced
Physics
Electrostatics & Capacitance
Question Bank
Self Evaluation Test - Electrostatic Potential and Capacitance
question_answer
Two parallel plate capacitors of capacitance C and 2C are connected in parallel and charged to a potential difference V. The battery is then disconnected, and the region between the plates of C is filled completely with a material of dielectric constant K. The common potential difference across the combination becomes