# A semiconductor is a material that conducts electricity in specific circumstances. Therefore, depending on the conditions under which it is operating, it can act as a conductor or an insulator. Conductors are materials with many free electrons and/or holes that allow electrons to freely pass through it. An insulater has it's electrons firmly bound in it therefore does not allow electrons to pass through it. | # A semiconductor is a material that conducts electricity in specific circumstances. Therefore, depending on the conditions under which it is operating, it can act as a conductor or an insulator. Conductors are materials with many free electrons and/or holes that allow electrons to freely pass through it. An insulater has it's electrons firmly bound in it therefore does not allow electrons to pass through it. |