List of top Physics Questions on capacitor with a dielectric

A parallel plate capacitor having plate area 200 cm² and separation 2.0 mm holds a charge of 0.06 µC on applying a potential difference of 60 V. The dielectric constant of the material filled in between the plates is.
A parallel plate capacitor with plate area \( A \) and plate separation \( d \) has a capacitance \( C_0 \). A slab of dielectric constant \( K \) having area \( A \) and thickness \( \left(\frac{d}{4}\right) \) is inserted in the capacitor, parallel to the plates. Find the new value of its capacitance.
Derive the formula for the capacitance of a parallel plate capacitor partially filled with a dielectric medium between the plates.
Derive the formula for the capacitance of a parallel plate capacitor, when a dielectric slab is partially filled in between its plates.
The resistance of a wire is 16 ohms. By melting it, the wire is stretched to half of its original length. What will be the resistance of the new wire?

Find the maximum magnitude of velocity and linear momentum of a photoelectron emitted when light of wavelength 4000 Ã… falls on a metal having work function 2.5 eV.