👉 In physics, the concept of permittivity is a measure of an object's ability to resist a change in its magnetic field. It is defined as the ratio of the magnetic flux density (B) to the electric field strength (E), and it can be calculated using the formula: \[ \epsilon = \frac{B}{E} \] where \( B \) is the magnetic field, and \( E \) is the electric field. For example, in a vacuum, the perm
