What is the dimensional formula of dielectric constant?

Explanation

To find the dimensional formula of the dielectric constant, we can follow these steps:

### Step 1: Understand the Definition
The dielectric constant (k) is defined as the ratio of the permittivity of a medium (ε) to the permittivity of free space (ε₀). Mathematically, this can be expressed as:
\[ k = \frac{\epsilon}{\epsilon_0} \]

### Step 2: Identify the Permittivity
Permittivity (ε) has the dimensional formula of:
...