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Question: Answered & Verified by Expert
A parallel plate condenser has a capacitance $50 \mu \mathrm{F}$ in air and $110 \mu \mathrm{F}$ when immersed in an oil. The dielectric constant ' $k$ ' of the oil is
PhysicsCapacitanceJEE Main
Options:
  • A 0.45
  • B 0.55
  • C 1.10
  • D 2.20
Solution:
1574 Upvotes Verified Answer
The correct answer is: 2.20
$C_{\text {medium }}=K C_{\text {air }} \Rightarrow K=\frac{C_{\text {medum }}}{C_{\text {air }}}=\frac{110}{50}=2.20$

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