The substances which combine together to store electrical energy during the charge are called ______ materials

The correct answer is: D. dielectric

A dielectric is an insulating material that can store electrical energy when an electric field is applied. Dielectrics are used in capacitors, which are devices that store electrical energy.

• Active materials are materials that can produce a chemical reaction when an electric current is passed through them. Examples of active materials include batteries and fuel cells.
• Passive materials are materials that do not produce a chemical reaction when an electric current is passed through them. Examples of passive materials include resistors, capacitors, and inductors.
• Inert materials are materials that do not react with other materials. Examples of inert materials include metals and plastics.