Question

The unit of dielectric constant is 
1. faraday
2. Coulomb
3. hertz
4. no unit

Answer 1

Correct Answer - Option 4 : no unit

The correct answer is option 4) i.e. no unit

CONCEPT:

• Dielectric constant: The dielectric constant is a material of low electrical conductivity and has the ability to store electrical charge.
  • It is defined as the ratio of the permittivity of the substance ϵ to the permittivity of the free space ϵ₀.

Dielectric constant, \(k = \frac{\epsilon}{\epsilon_0}\)

EXPLANATION:

• As dielectric constant is the ratio of two like quantities i.e. permittivity, it has no units and dimensions.