A constant current is maintained in a solenoid. Which of the following quantities will not increase if an iron rod is inserted in the solenoid along its axis?
rate of Joule heating.
The explanation for the correct option:
Option (D): Rate of Joule heating.
The explanation for the incorrect answer:
Option(A): The magnetic field at the center.
Option (B): Self-inductance of the solenoid.
Option (C): Magnetic flux linked with the solenoid.
Hence, option D is the correct option.