List of top Physics Questions on capacitor with a dielectric asked in UP Board XII

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?

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.

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.