What is the dielectric constant of conducting materials?

What is dielectric constant ?

What is the dielectric constant of metal ?

Dielectric constant is

What is dielectric Constant?

A voltmeter reads 4 V when connected to a parallel plate capacitor with air as a dielectric. When a dielectric slab is introduced between plates for the same configuration , voltmeter reads 2V. What is the dielectric constant of the material ?

What is the unit of dielectric constant?

What is the unit of dielectric constant?