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NEET2026PhysicsChapterActual

A small block is placed on a frictionless horizontal track that passes near the poles of a powerful electromagnet, where the magnetic field is non-uniform. A. The block will experience a net force towards the stronger field region if it is made of a paramagnetic material. B. The block will experience a net force towards the stronger field region if it is made of a diamagnetic material. C. The block will experience a

Options

  1. AA, B and C only
  2. BB and D only
  3. CA and C only
  4. DC and D only

Correct answer

C. A and C only

Step-by-step solution

Paramagnetic materials are weakly attracted by a magnetic field and tend to move from a region of weaker magnetic field to a region of stronger magnetic field. Hence, statement A is correct. Diamagnetic materials are weakly repelled by a magnetic field and tend to move from a region of stronger magnetic field to a region of weaker magnetic field. Hence, statement B is incorrect. When a conducting metal block is pushed into a magnetic field, eddy currents are induced in it. According to Lenz's law, the direction of

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