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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 2 - Capacitance > The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant 2. Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric.

The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant 2. Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric.

Minimum number of capacitors of 4μF capacitance each required to obtain a capacitor of 10μF will be