# Tear Apart the dielectric

A dielectric slab of thickness $$t$$ and relative permittivity $$k$$ is placed between two fixed parallel metal plates. Faces of the slab and the plates are parallel and the distance between the plates is $$d$$. Breaking stress of the material is $$b$$.

Neglecting the end effects, let the minimum voltage required to rupture the dielectric slab be $$V$$. What is $$V^2$$ is proportional to?

×