A mica plate is located in a homogeneous electrostatic field of 180 V / m.

A mica plate is located in a homogeneous electrostatic field of 180 V / m. The field strength inside the plate is 30 V / m. What is the dielectric constant of mica?

To calculate the desired value of the dielectric constant of mica, we use the formula: ε = E0 / E.

Variables: E0 – the intensity of the considered electrostatic field (E0 = 180 V / m); E is the field strength inside the taken mica plate (E = 30 V / m).

Let’s calculate: ε = E0 / E = 180/30 = 6.

Answer: The dielectric constant of mica, according to the calculation, is 6.