Question:
The dielectric constant of a metal is:
The dielectric constant of a metal is:
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Dielectric constant of metals → infinite, ideal conductors completely shield the field.
Updated On: Oct 22, 2025
- \(-1\)
- \(0\)
- \(1\)
- infinity
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The Correct Option is D
Solution and Explanation
A metal is a perfect conductor containing free electrons that can move freely in response to an electric field. Due to this behavior, the dielectric constant (or relative permittivity) of a metal is effectively infinite:
\[
\varepsilon_r \to \infty.
\]
This implies that the metal can completely screen or cancel the electric field inside it, preventing any penetration of the field within the conductor.
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