Choose the right answer from the following. A constant current I 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? (a) the magnetic field at the centre (b) self-inductance of the solenoid (c) magnetic flux linked with the solenoid (d) rate of Joule heating.

Answer: rate of joule heating Explanation: When an iron rod is inserted inside a solenoid the magnetic field inside the solenoid increases due... View Article