The capacities of a parallel plate capacitor first with air and then on introducing oil between its plates are `50muF` and `120muF` respectively. The dielectric constant of oil is

The capacitance of a parallel plate capacitor is 2.5muF when it is half filled with a dielectric as shown in the figure, Its capacitance becomes 5muF , the dielectric constant of the dielectric is

The capacitance of a parallel plate capacitor with air as medium is 3muF . With the introduction of a dielectric medium between the plates, the capacitance becomes 15muF. The permittivity of the medium is

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

The capacitance of a parallel plate capacitor is 10muF . When a dielectric plate is introduced in between the plates, its potential becomes 1/4th of its original value. What is the value of the dielectric constant of the plate introduced?

The capacitance of a parallel plate capacitor with air as medium is 3 muF. with the introduction of a dielectric medium between the plates, the capacitance becomes 15mu F. The permittivity of the medium is

The capacitance of a parallel plate capacitor with air as medium is 3 muF. with the introduction of a dielectric medium between the plates, the capacitance becomes 15mu F. The permittivity of the medium is

The capacitance of a parallel plate capacitor with air as Medium is 6 muF . With the introduction of a dielectric medium,the capacitance becomes 30muF . The permittivity of the medium is: