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Magnetic Properties of Matter question

2019 · 9 Jan · Shift 1 · Q46
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  5. /2019 · 9 Jan · Shift 1 · Q46

Magnetic Properties of Matter question

2019 · 9 Jan · Shift 1 · Q46

JEE MainPhysicsMagnetic Properties of MatterMCQ+4 / −1
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 :
  1. A
    285 A/m
  2. B
    2600 A/m
  3. C
    520 A/m
  4. D
    1200 A/m
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