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MHT CET 2019 (2 May, Shift 2) · Other: Induction & Displacement Current

Other: Induction & Displacement Current question from MHT CET 2019 (2 May, Shift 2)

Q11MHT CET 2019 · 2 MAY · SHIFT 2Easy

Other: Induction & Displacement Current

The magnetic dipole moment of a short magnetic dipole at a distant point along the equator of magnet has a magnitude of ' XX ' in SI units. If the distance between the point and the magnet is halved then the magnitude of dipole moment will be

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Answer: (c)

  1. The dipole moment is a property of the magnet itself (m=qm×2lm = q_m \times 2l); it does not depend on where the field is measured.
  2. Halving the distance changes the field (B∝1/r3B \propto 1/r^3), not the moment.
  3. So the answer is (c) XX.
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