When air in a capacitor is replaced by a medium of dielectric constant $K$, the capacity
When air in a capacitor is replaced by a medium of dielectric constant $K$, the capacity
- A
Decreases $K$ times
- B
Increases $ K$ times
- C
Increases ${K^2}$ times
- D
Remains constant
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- [JEE MAIN 2014]
The area of the plates of a parallel plate condenser is $A$ and the distance between the plates is $10\,mm$. There are two dielectric sheets in it, one of dielectric constant $10$ and thickness $6\,mm$ and the other of dielectric constant $5$ and thickness $4\,mm$. The capacity of the condenser is
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