Which material is known for allowing the transfer of thermal energy and electric current?

The material known for allowing the transfer of thermal energy and electric current is a conductor. Conductors are substances that permit the flow of electric charge and heat due to their atomic structure, which provides free electrons that can move easily through the material. Metals such as copper and aluminum are classic examples of conductors, as they exhibit excellent conductivity for both electricity and heat.

In contrast, insulators are materials that resist the flow of electric current and thermal energy, preventing energy transfer. Semiconductors are materials that have properties between those of conductors and insulators, allowing them to conduct electricity under certain conditions but not as effectively as conductors. Resistors are components specifically designed to impede the flow of electric current and are typically used to control current within an electrical circuit. Thus, the characteristics of a conductor make it the ideal answer for the question regarding the transfer of both thermal energy and electric current.