COMEDK · Physics · 18. Capacitance
An air filled parallel plate condenser has a capacity of \(2 \mathrm{pF}\). The separation of the plates is doubled and the interspace between the plates is filled with wax. If the capacity is increased to \(6 \mathrm{pF}\), then the dielectric constant of wax is
- A 2
- B 3
- C 4
- D 6
Answer & Solution
Correct Answer
(D) 6
Step-by-step Solution
Detailed explanation
Given, capacitance of air filled parallel plate capacitor, \(C_{0}=2 \mathrm{pF}\) \(\Rightarrow \quad=2 \times 10^{-12} \mathrm{~F}\) \(\Rightarrow \quad \frac{\varepsilon_{0} A}{d}=2 \times 10^{-12} \mathrm{~F}...(i)\) When the separation between the plates is doubled, i.e.,…
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