A constant current \( i \) is maintained in a solenoid. Which of the following quantities will i... VIDEO
A constant current \( i \) is maintained in a solenoid. Which of the following quantities will increase if an iron rod is inserted in the solenoid along its axis ?
(a) magnetic field at the centre
(b) magnetic flux linked with the solenoid
(c) self-inductance of the solenoid
(d) rate of Joule heating.
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