Electrical Conductors and Their Properties Quiz

Copper is a good conductor due to its abundance of free electrons.

Rubber is commonly used as an insulator due to its high resistance.

Aluminum is commonly used in electrical wiring due to its high conductivity and cost-effectiveness.

Highly conductive materials typically exhibit low resistivity.

Materials conduct electricity effectively due to the presence of free electrons.

Electrical conductors allow the flow of electricity, unlike insulators.

Increasing the cross-sectional area of a conductor decreases its electrical resistance.

The type of material does not affect the resistance of a conductor.

Conductors have free electrons facilitating electricity flow, unlike insulators.

Electrical conductivity is measured in Siemens per meter (S/m).

Silver exhibits the highest electrical conductivity among metals.

When current passes through, electrical energy is converted into heat, causing heating.

Superconductors exhibit very low resistance at absolute zero temperature.

The Meissner effect explains why superconductors expel magnetic fields from their interior.