A solenoid having an iron core has its terminals connected across an ideal \( D C \) source and ....

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A solenoid having an iron core has its terminals connected across an ideal \( D C \) source and it is in
\( \mathrm{P} \)
steady state. If the iron core is removed, the current
W
flowing through the solenoid just after removed of rod
(1) increases
(2) decreases
(3) remains unchanged
(4) nothing can be said


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