Question

The dielectric constant of a metal is :

• A. $\infty$
• B. $0$
  
• C. $1$
  
• D. None

Answer 1

Answer: (A)

$\infty$

Metal is good conductor. So its $K=\infty .$
Metal being a good conductor will easily allow charges to conduct and hence the permittivity will increase and its dielectric constant will tend to infinity.