JEE Main 9 Jan 2019 Shift 1 Solved Paper

Section: Physics

Question : 9 of 90

Marks: +1, -0

A bar magnet is demagnetized by inserting itinside a solenoid of length 0.2 m, 100 turas, andcarrying a current of 5.2 A. The coercivitv ofthe bar magnet is :

[9-Jan-2019 Shift 1]

1200 A/m
2600 A/m
520 A/m
285 A/m

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