Electrostatics Question 82
Question: A parallel plate condenser with oil between the plates (dielectric constant of oil $ K=2 $ ) has a capacitance$ C $ . If the oil is removed, then capacitance of the capacitor becomes [CBSE PMT 1999; MH CET 2000]
Options:
A) $ \sqrt{2}C $
B) $ 2C $
C) $ \frac{C}{\sqrt{2}} $
D) $ \frac{C}{2} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ C _{air}=\frac{C _{medium}}{K}=\frac{C}{2} $
