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JEE Main 202124 FebruaryEvening Shift
Exam
JEE Main
Year
2021
Date
24 February
Shift
Evening Shift
Subject
Physics
Chapter
Magnetic Properties of Matter

JEE Main 2021 · 24 February · Evening Shift · Physics · Magnetic Properties of Matter

A soft ferromagnetic material is placed in an external magnetic...

A soft ferromagnetic material is placed in an external magnetic field. The magnetic domains:

Options

  1. Ahave no relation with external magnetic field.
  2. Bdecrease in size and changes orientation.
  3. Cincrease in size but no change in orientation.
  4. Dmay increase or decrease in size and change its orientation.

Correct answer

D. may increase or decrease in size and change its orientation.

Step-by-step solution

Soft ferromagnetic materials are materials which can be easily magnetised and demagnetised by external magnetic field. When external field is applied, the domains experiences a net torque hence change its orientation.
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