Tag Archives: electrical conductivity

Answer: The cord of an electrical heater does not glow because it is made of a material with higher electrical resistance compared to the heating elements. The high resistance in the cord prevents significant current flow, minimizing heat generation and eliminating the glow effect. Reasoning: Material Composition: The cord is …

Answer: Stones or gravel are used in electrical switchyards primarily for their insulating properties and their ability to provide a stable, level surface for equipment and personnel. Reasoning: The complete reasoning behind this practice is multifaceted: Insulation: Stones/gravel act as a non-conductive layer between the ground and the electrical equipment, …