JEE Mains 05-Sep-2020 Shift 2 Solved Paper

Section: Physics

Question : 4 of 75

Marks: +1, -0

An iron rod of volume 10−3m3 and relative permeability 1000 is placed as core in a solenoid with 10 turns/cm. If a current of 0.5 A is passed through the solenoid, then the magnetic moment of the rod will be :

[5 Sep 2020 Shift 2]

0.5×102 Am2
50×102 Am2
500×102 Am2
5×102 Am2

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