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Magnetic Properties of Matter question

2019 · 10 Jan · Shift 1 · Q59
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  5. /2019 · 10 Jan · Shift 1 · Q59

Magnetic Properties of Matter question

2019 · 10 Jan · Shift 1 · Q59

JEE MainPhysicsMagnetic Properties of MatterMCQ+4 / −1
A magnet of total magnetic moment 10-2 i^{\widehat i}i A-m2 is placed in a time varying magnetic field, B i^{\widehat i}i(cos ωt\omega tωt) where B = 1 Tesla and ω\omegaω = 0.125 rad/s. The work done for reversing the direction of the magnetic moment at t = 1 second, is -
  1. A
    0.014 J
  2. B
    0.028 J
  3. C
    0.01 J
  4. D
    0.007 J
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