Question

The dielectric constant $K$ of an insulator can be:

• A. 5
• B. 0.5
• C. -1
• D. zero

Answer 1

Answer: (A)

Dielectric constant is
$K=\frac{E}{E^{\prime }}$
For an insulator $E^{\prime }<E$ so,
out of the given choice,
$K=5$