Question

distinguish between dielectric and a conductor

Answer 1

This allows electrons to gain energy and thereby move through a conductor such as a metal. If no such states are available, the material is an insulator." Most insulators have a large band gap. ... A dielectric on the other hand is an electrical insulator that can be polarized by an applied electric field.

Answer 2

Answer: A dielectric is an electrical insulator that can be polarised under the effect of the applied electric field. A conductor is one that loses its outermost free electrons on the application of an even weak electric field.

Explanation:

DIelectric:

• It cannot conduct electricity due to the absence of free electrons or free charge carriers even in presence of an electric field.
• Dielectrics are insulators but unlike insulators, they can be polarized in presence of an electric field.
• They store energy in the presence of an electric field.
• Electric field is parallel to the surface of the dielectric.
• Electric field is present inside dielectric.

Conductor:

• It can conduct electricity as free electrons or free charge carriers are present. The negative and positive charges cancel out and only the free charges are present on the surface.
• Electric field is present perpendicular to the surface of conductors
• No electric field present inside the conductor.