Question

A sheet is placed between plates of capacitor, its capacitance will

• A. Decrease, if sheet is metal
• B. May increase or may decrease if sheet is dielectric
• C. Increases, irrespective of sheet is dielectric or conducting
• D. Become $\frac{1}{K}$ times, its whole space is filled by dielectric of dielectric constant (K)

Answer 1

The correct option is C Increases, irrespective of sheet is dielectric or conducting

$\Rightarrow$ Due to slab/sheet E between plates becomes weaker
$\Rightarrow \Delta V$ between plates decreases
$\Rightarrow$ Capacitance surely increases