A parallel state air capacitor has capacitance of 100 `muF`. The plates are at a distance d apart. If a slab of thickness t `(t le d)` and dielectric constant 5 is introduced between the parallel plates, then the capacitance can be

Options

A. `50muF`
B. `100muF`
C. `200muF`
D. `500muF`

Answer

C

Explanation

Capacitance will increase but not 5 times (because dielectric is not filled completely). Hence new capacitance may be 200 `muF`.