Explanation:

Dielectric constant is a measure of the ability of a material to store electrical energy in an electric field. It is also known as relative permittivity. The dielectric constant is defined as the ratio of the capacitance of a capacitor filled with a dielectric material to the capacitance of the same capacitor when it is in a vacuum.

Dielectric constant will be high in insulators due to the following reasons:

1. Insulators have tightly bound electrons, which are not free to move. Therefore, they cannot conduct electricity.

2. Insulators have a high resistivity, which means that they offer a high resistance to the flow of electric current.

3. Insulators have a high dielectric constant, which means that they can store a large amount of electric charge.

4. Insulators have a low thermal conductivity, which means that they cannot conduct heat very well.

Therefore, dielectric constant will be high in insulators. Some examples of insulators include glass, ceramic, rubber, and plastic.

Conclusion:

In conclusion, dielectric constant will be high in insulators due to their tightly bound electrons, high resistivity, high dielectric constant, and low thermal conductivity. Insulators have a wide range of applications in electrical and electronic devices, such as capacitors, transformers, and cables.