Magnetic field intensity is defined as
Correct answer: C. Number of lines of force crossing per unit area
- A. Magnetic moment per unit volume
- B. Magnetic induction force acting on a unit pole
- C. Number of lines of force crossing per unit area
- D. Number of lines of force crossing per unit volume
Explanation
Magnetic field intensity, also known as magnetic flux density, is correctly defined as the number of magnetic lines of force crossing per unit area. This is a measure of the strength of the magnetic field at a given point. Option C is correct because it accurately describes this concept. Options A and D are incorrect because they confuse the definition with magnetisation and incorrectly define it per unit volume. Option B describes a concept related to magnetic force, not field intensity.
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