The same stresses are applied to the ends of the steel and iron conductors having the same cross-sectional area and mass. In which conductor is the current stronger?
The strength of the current in an iron conductor is greater than in a steel one, because current strength is inversely proportional to the resistance of the conductor at constant voltage, and steel has a higher resistivity than iron, therefore, the steel conductor has more resistance.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.