Question

Define dielectric strength of a medium. What is its value for vacuum.

Answer 1

Answer:

The maximum electric field that a dielectric medium can withstand without breaking down of its insulating property is called dielectric strength. Its value for vacumm is infinity.

a perfect vacuum has a relative permittivity of exactly 1 whereas at STP, air has a relative permittivity of κair = 1.0006.

Mark as Brainliest