The capacity of a parallel plate capacitor with no dielectric substance but with a separation of 0.4 cm is \[2\mu \,F\]. The separation is reduced to half and it is filled with a dielectric substance of value 2.8. The final capacity of the capacitor is [CBSE PMT 2000]

• A.            \[11.2\mu F\]
• B.            \[15.6\mu F\]
• C.            \[19.2\mu F\]
• D.            \[22.4\mu F\]