Define magnetic intensity. State its dimensions and SI unit.

Explanation

**Step-by-Step Solution:**

1. **Definition of Magnetic Intensity:**
Magnetic intensity, often denoted as \( H \), is defined as the measure of the magnetizing force applied to a magnetic material. It indicates how much external magnetic field is required to magnetize a material. It is a vector quantity that describes the strength and direction of the magnetic field in a medium.

2. **Expression for Magnetic Intensity:**
The magnetic intensity can be expressed in terms of magnetic induction \( B \) and permeability \( \mu \) of the medium:
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