🔍 Key Concepts

• Relationship between capacitance and the dielectric constant (relative permittivity) • Formula for a parallel‑plate capacitor: C = εA/d, where ε = ε₀·κ • What it means physically if the dielectric constant changes from one value to another

💭 Think About

• Write the expression for capacitance with the first dielectric constant and with the second one, then compare the two values as a ratio • Ask yourself: if κ₁ = 1 and κ₂ = 1, how does κ₂/κ₁ change? Does capacitance increase, decrease, or stay the same? • Think about whether any of the listed options describe an unchanged capacitance

✅ Before You Answer

• Be sure you know that capacitance is directly proportional to the dielectric constant κ • Confirm whether changing κ from 1 to 1 represents any real change in the material’s dielectric property • Check if any of the answer choices correctly reflects no change in capacitance, or if they all imply a change or strange behavior like rapid decay