Question

two plates of a parallel plate capacitor are 4mm apart. a slab of dielectric constant 3 and thickness 3mm is introduced between the plates is adjusted so that the capacitance becomes 2/3rd of its initial value. what is the new distance between the plates.

Answer 1

Here you go

Formula used,

C=e°A/d-t+t/k

Answer 2

Hey !

Refer the attachment for the Solution !!

Answer :-

• distance between the plates is d = 5mm !!