When a conductor carries more current on the surface as compared to core, it is due to skin effect.
Description : When electric current passes through a metallic conductor, its temperature rises. This is due to?
Answer : When electric current passes through a metallic conductor, its temperature rises. This is due to collisions between conduction electrons and atoms.
Description : Heat in a conductor is produced on the passage of electric current due to?
Answer : Heat in a conductor is produced due to frictional collision of electrons flow as they conduct current.
Description : Explain the suitability of aluminium as an electrical conductor with respect to its mechanical and electrical properties.
Answer : Following are requirements of conductor:- i) High conductivity : Material should have high conductivity, So that * cross section of conductor (size) reduces, * Copper losses reduces, * So Efficiency ... . Boiling point is 1820°C 9. Specific gravity is 2.7 10. High resistance to corrosion.
Description : When secondary of a current transformer is open-circuited its iron core will be?
Answer : When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density.
Description : How does the resistance of a conductor compare to that of an insulator?
Answer : The resistance of a conductor can be significantly lower than the resistance of an insulator, depending on each material's atomic properties.