Magnetic Effects of Current and Magnetism: JEE Main 2019 Physics question

JEE Main 2019 · 9 Jan, Morning shift · Q7637

JEE Main 20199 Jan, Morning shiftPhysicsEasyMagnetic Effects of Current and Magnetism165× since 2002

A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The corecivity of the bar magnet is :